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1.81M
| max_line_length
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stringclasses 90
values |
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null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/pmdk/utils/docker/run-coverage.sh
|
#!/usr/bin/env bash
#
# Copyright 2017, Intel Corporation
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# * Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# run-coverage.sh - is called inside a Docker container; runs the coverage
# test
#
set -e
# Get and prepare PMDK source
./prepare-for-build.sh
# Build librpmem even if libfabric is not compiled with ibverbs
export RPMEM_DISABLE_LIBIBVERBS=y
# Hush error messages, mainly from Valgrind
export UT_DUMP_LINES=0
# Skip printing mismached files for tests with Valgrind
export UT_VALGRIND_SKIP_PRINT_MISMATCHED=1
# Build all and run tests
cd $WORKDIR
make -j2 USE_LIBUNWIND=1 COVERAGE=1
make -j2 test USE_LIBUNWIND=1 COVERAGE=1
# XXX: unfortunately valgrind raports issues in coverage instrumentation
# which we have to ignore (-k flag), also there is dependency between
# local and remote tests (which cannot be easily removed) we have to
# run local and remote tests separately
cd src/test
make -kj2 pcheck-local-quiet TEST_BUILD=debug || true
make check-remote-quiet TEST_BUILD=debug || true
cd ../..
bash <(curl -s https://codecov.io/bash)
| 2,549 | 37.636364 | 74 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/pmdk/utils/docker/images/install-valgrind.sh
|
#!/usr/bin/env bash
#
# Copyright 2016-2018, Intel Corporation
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# * Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# install-valgrind.sh - installs valgrind for persistent memory
#
set -e
git clone https://github.com/pmem/valgrind.git
cd valgrind
git checkout b660021d776daec4165c6645bedf66d6d6fc545a
./autogen.sh
./configure
make
make install
cd ..
rm -rf valgrind
| 1,843 | 37.416667 | 73 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/pmdk/utils/docker/images/build-image.sh
|
#!/usr/bin/env bash
#
# Copyright 2016-2018, Intel Corporation
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# * Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# build-image.sh <OS-VER> - prepares a Docker image with <OS>-based
# environment for building PMDK project, according
# to the Dockerfile.<OS-VER> file located
# in the same directory.
#
# The script can be run locally.
#
set -e
function usage {
echo "Usage:"
echo " build-image.sh <OS-VER>"
echo "where <OS-VER>, for example, can be 'ubuntu-16.04', provided " \
"a Dockerfile named 'Dockerfile.ubuntu-16.04' exists in the " \
"current directory."
}
# Check if the first argument is nonempty
if [[ -z "$1" ]]; then
usage
exit 1
fi
# Check if the file Dockerfile.OS-VER exists
if [[ ! -f "Dockerfile.$1" ]]; then
echo "ERROR: wrong argument."
usage
exit 1
fi
# Build a Docker image tagged with pmem/pmdk:OS-VER
tag=pmem/pmdk:$1
docker build -t $tag \
--build-arg http_proxy=$http_proxy \
--build-arg https_proxy=$https_proxy \
-f Dockerfile.$1 .
| 2,537 | 34.746479 | 76 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/pmdk/utils/docker/images/install-libfabric.sh
|
#!/usr/bin/env bash
#
# Copyright 2016-2018, Intel Corporation
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# * Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# install-libfabric.sh - installs a customized version of libfabric
#
set -e
OS=$1
# Keep in sync with requirements in src/common.inc.
libfabric_ver=1.4.2
libfabric_url=https://github.com/ofiwg/libfabric/archive
libfabric_dir=libfabric-$libfabric_ver
libfabric_tarball=v${libfabric_ver}.zip
wget "${libfabric_url}/${libfabric_tarball}"
unzip $libfabric_tarball
cd $libfabric_dir
./autogen.sh
./configure --prefix=/usr --enable-sockets
make -j2
make install
cd ..
rm -f ${libfabric_tarball}
rm -rf ${libfabric_dir}
| 2,109 | 35.37931 | 73 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/pmdk/utils/docker/images/install-libndctl.sh
|
#!/usr/bin/env bash
#
# Copyright 2017-2018, Intel Corporation
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# * Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# install-libndctl.sh - installs libndctl
#
set -e
OS=$1
echo "==== clone ndctl repo ===="
git clone https://github.com/pmem/ndctl.git
cd ndctl
git checkout tags/v60.1
if [ "$OS" = "fedora" ]; then
echo "==== setup rpmbuild tree ===="
rpmdev-setuptree
RPMDIR=$HOME/rpmbuild/
VERSION=$(./git-version)
SPEC=./rhel/ndctl.spec
echo "==== create source tarball ====="
git archive --format=tar --prefix="ndctl-${VERSION}/" HEAD | gzip > "$RPMDIR/SOURCES/ndctl-${VERSION}.tar.gz"
echo "==== build ndctl ===="
./autogen.sh
./configure
make
echo "==== update ndctl.spec ===="
# XXX: pre-process ndctl.spec to remove dependency on libpmem
# To be removed once ndctl v60 is available.
sed -i -e "/pkgconfig(libpmem)/d" -e "s/--with-libpmem//g" $SPEC
echo "==== build ndctl packages ===="
rpmbuild -ba $SPEC
echo "==== install ndctl packages ===="
rpm -i $RPMDIR/RPMS/x86_64/*.rpm
echo "==== cleanup ===="
rm -rf $RPMDIR
else
echo "==== build ndctl ===="
./autogen.sh
./configure
make
echo "==== install ndctl ===="
make install
echo "==== cleanup ===="
fi
cd ..
rm -rf ndctl
| 2,672 | 27.741935 | 109 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/pmdk/utils/docker/images/push-image.sh
|
#!/usr/bin/env bash
#
# Copyright 2016-2018, Intel Corporation
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# * Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# push-image.sh <OS-VER> - pushes the Docker image tagged with OS-VER
# to the Docker Hub.
#
# The script utilizes $DOCKER_USER and $DOCKER_PASSWORD variables to log in to
# Docker Hub. The variables can be set in the Travis project's configuration
# for automated builds.
#
set -e
function usage {
echo "Usage:"
echo " push-image.sh <OS-VER>"
echo "where <OS-VER>, for example, can be 'ubuntu-16.04', provided " \
"a Docker image tagged with pmem/pmdk:ubuntu-16.04 exists " \
"locally."
}
# Check if the first argument is nonempty
if [[ -z "$1" ]]; then
usage
exit 1
fi
# Check if the image tagged with pmdk/OS-VER exists locally
if [[ ! $(docker images -a | awk -v pattern="^pmem/pmdk:$1\$" \
'$1":"$2 ~ pattern') ]]
then
echo "ERROR: wrong argument."
usage
exit 1
fi
# Log in to the Docker Hub
docker login -u="$DOCKER_USER" -p="$DOCKER_PASSWORD"
# Push the image to the repository
docker push pmem/pmdk:$1
| 2,547 | 34.388889 | 78 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lopcodes.h
|
/*
** $Id: lopcodes.h,v 1.125.1.1 2007/12/27 13:02:25 roberto Exp $
** Opcodes for Lua virtual machine
** See Copyright Notice in lua.h
*/
#ifndef lopcodes_h
#define lopcodes_h
#include "llimits.h"
/*===========================================================================
We assume that instructions are unsigned numbers.
All instructions have an opcode in the first 6 bits.
Instructions can have the following fields:
`A' : 8 bits
`B' : 9 bits
`C' : 9 bits
`Bx' : 18 bits (`B' and `C' together)
`sBx' : signed Bx
A signed argument is represented in excess K; that is, the number
value is the unsigned value minus K. K is exactly the maximum value
for that argument (so that -max is represented by 0, and +max is
represented by 2*max), which is half the maximum for the corresponding
unsigned argument.
===========================================================================*/
enum OpMode {iABC, iABx, iAsBx}; /* basic instruction format */
/*
** size and position of opcode arguments.
*/
#define SIZE_C 9
#define SIZE_B 9
#define SIZE_Bx (SIZE_C + SIZE_B)
#define SIZE_A 8
#define SIZE_OP 6
#define POS_OP 0
#define POS_A (POS_OP + SIZE_OP)
#define POS_C (POS_A + SIZE_A)
#define POS_B (POS_C + SIZE_C)
#define POS_Bx POS_C
/*
** limits for opcode arguments.
** we use (signed) int to manipulate most arguments,
** so they must fit in LUAI_BITSINT-1 bits (-1 for sign)
*/
#if SIZE_Bx < LUAI_BITSINT-1
#define MAXARG_Bx ((1<<SIZE_Bx)-1)
#define MAXARG_sBx (MAXARG_Bx>>1) /* `sBx' is signed */
#else
#define MAXARG_Bx MAX_INT
#define MAXARG_sBx MAX_INT
#endif
#define MAXARG_A ((1<<SIZE_A)-1)
#define MAXARG_B ((1<<SIZE_B)-1)
#define MAXARG_C ((1<<SIZE_C)-1)
/* creates a mask with `n' 1 bits at position `p' */
#define MASK1(n,p) ((~((~(Instruction)0)<<n))<<p)
/* creates a mask with `n' 0 bits at position `p' */
#define MASK0(n,p) (~MASK1(n,p))
/*
** the following macros help to manipulate instructions
*/
#define GET_OPCODE(i) (cast(OpCode, ((i)>>POS_OP) & MASK1(SIZE_OP,0)))
#define SET_OPCODE(i,o) ((i) = (((i)&MASK0(SIZE_OP,POS_OP)) | \
((cast(Instruction, o)<<POS_OP)&MASK1(SIZE_OP,POS_OP))))
#define GETARG_A(i) (cast(int, ((i)>>POS_A) & MASK1(SIZE_A,0)))
#define SETARG_A(i,u) ((i) = (((i)&MASK0(SIZE_A,POS_A)) | \
((cast(Instruction, u)<<POS_A)&MASK1(SIZE_A,POS_A))))
#define GETARG_B(i) (cast(int, ((i)>>POS_B) & MASK1(SIZE_B,0)))
#define SETARG_B(i,b) ((i) = (((i)&MASK0(SIZE_B,POS_B)) | \
((cast(Instruction, b)<<POS_B)&MASK1(SIZE_B,POS_B))))
#define GETARG_C(i) (cast(int, ((i)>>POS_C) & MASK1(SIZE_C,0)))
#define SETARG_C(i,b) ((i) = (((i)&MASK0(SIZE_C,POS_C)) | \
((cast(Instruction, b)<<POS_C)&MASK1(SIZE_C,POS_C))))
#define GETARG_Bx(i) (cast(int, ((i)>>POS_Bx) & MASK1(SIZE_Bx,0)))
#define SETARG_Bx(i,b) ((i) = (((i)&MASK0(SIZE_Bx,POS_Bx)) | \
((cast(Instruction, b)<<POS_Bx)&MASK1(SIZE_Bx,POS_Bx))))
#define GETARG_sBx(i) (GETARG_Bx(i)-MAXARG_sBx)
#define SETARG_sBx(i,b) SETARG_Bx((i),cast(unsigned int, (b)+MAXARG_sBx))
#define CREATE_ABC(o,a,b,c) ((cast(Instruction, o)<<POS_OP) \
| (cast(Instruction, a)<<POS_A) \
| (cast(Instruction, b)<<POS_B) \
| (cast(Instruction, c)<<POS_C))
#define CREATE_ABx(o,a,bc) ((cast(Instruction, o)<<POS_OP) \
| (cast(Instruction, a)<<POS_A) \
| (cast(Instruction, bc)<<POS_Bx))
/*
** Macros to operate RK indices
*/
/* this bit 1 means constant (0 means register) */
#define BITRK (1 << (SIZE_B - 1))
/* test whether value is a constant */
#define ISK(x) ((x) & BITRK)
/* gets the index of the constant */
#define INDEXK(r) ((int)(r) & ~BITRK)
#define MAXINDEXRK (BITRK - 1)
/* code a constant index as a RK value */
#define RKASK(x) ((x) | BITRK)
/*
** invalid register that fits in 8 bits
*/
#define NO_REG MAXARG_A
/*
** R(x) - register
** Kst(x) - constant (in constant table)
** RK(x) == if ISK(x) then Kst(INDEXK(x)) else R(x)
*/
/*
** grep "ORDER OP" if you change these enums
*/
typedef enum {
/*----------------------------------------------------------------------
name args description
------------------------------------------------------------------------*/
OP_MOVE,/* A B R(A) := R(B) */
OP_LOADK,/* A Bx R(A) := Kst(Bx) */
OP_LOADBOOL,/* A B C R(A) := (Bool)B; if (C) pc++ */
OP_LOADNIL,/* A B R(A) := ... := R(B) := nil */
OP_GETUPVAL,/* A B R(A) := UpValue[B] */
OP_GETGLOBAL,/* A Bx R(A) := Gbl[Kst(Bx)] */
OP_GETTABLE,/* A B C R(A) := R(B)[RK(C)] */
OP_SETGLOBAL,/* A Bx Gbl[Kst(Bx)] := R(A) */
OP_SETUPVAL,/* A B UpValue[B] := R(A) */
OP_SETTABLE,/* A B C R(A)[RK(B)] := RK(C) */
OP_NEWTABLE,/* A B C R(A) := {} (size = B,C) */
OP_SELF,/* A B C R(A+1) := R(B); R(A) := R(B)[RK(C)] */
OP_ADD,/* A B C R(A) := RK(B) + RK(C) */
OP_SUB,/* A B C R(A) := RK(B) - RK(C) */
OP_MUL,/* A B C R(A) := RK(B) * RK(C) */
OP_DIV,/* A B C R(A) := RK(B) / RK(C) */
OP_MOD,/* A B C R(A) := RK(B) % RK(C) */
OP_POW,/* A B C R(A) := RK(B) ^ RK(C) */
OP_UNM,/* A B R(A) := -R(B) */
OP_NOT,/* A B R(A) := not R(B) */
OP_LEN,/* A B R(A) := length of R(B) */
OP_CONCAT,/* A B C R(A) := R(B).. ... ..R(C) */
OP_JMP,/* sBx pc+=sBx */
OP_EQ,/* A B C if ((RK(B) == RK(C)) ~= A) then pc++ */
OP_LT,/* A B C if ((RK(B) < RK(C)) ~= A) then pc++ */
OP_LE,/* A B C if ((RK(B) <= RK(C)) ~= A) then pc++ */
OP_TEST,/* A C if not (R(A) <=> C) then pc++ */
OP_TESTSET,/* A B C if (R(B) <=> C) then R(A) := R(B) else pc++ */
OP_CALL,/* A B C R(A), ... ,R(A+C-2) := R(A)(R(A+1), ... ,R(A+B-1)) */
OP_TAILCALL,/* A B C return R(A)(R(A+1), ... ,R(A+B-1)) */
OP_RETURN,/* A B return R(A), ... ,R(A+B-2) (see note) */
OP_FORLOOP,/* A sBx R(A)+=R(A+2);
if R(A) <?= R(A+1) then { pc+=sBx; R(A+3)=R(A) }*/
OP_FORPREP,/* A sBx R(A)-=R(A+2); pc+=sBx */
OP_TFORLOOP,/* A C R(A+3), ... ,R(A+2+C) := R(A)(R(A+1), R(A+2));
if R(A+3) ~= nil then R(A+2)=R(A+3) else pc++ */
OP_SETLIST,/* A B C R(A)[(C-1)*FPF+i] := R(A+i), 1 <= i <= B */
OP_CLOSE,/* A close all variables in the stack up to (>=) R(A)*/
OP_CLOSURE,/* A Bx R(A) := closure(KPROTO[Bx], R(A), ... ,R(A+n)) */
OP_VARARG/* A B R(A), R(A+1), ..., R(A+B-1) = vararg */
} OpCode;
#define NUM_OPCODES (cast(int, OP_VARARG) + 1)
/*===========================================================================
Notes:
(*) In OP_CALL, if (B == 0) then B = top. C is the number of returns - 1,
and can be 0: OP_CALL then sets `top' to last_result+1, so
next open instruction (OP_CALL, OP_RETURN, OP_SETLIST) may use `top'.
(*) In OP_VARARG, if (B == 0) then use actual number of varargs and
set top (like in OP_CALL with C == 0).
(*) In OP_RETURN, if (B == 0) then return up to `top'
(*) In OP_SETLIST, if (B == 0) then B = `top';
if (C == 0) then next `instruction' is real C
(*) For comparisons, A specifies what condition the test should accept
(true or false).
(*) All `skips' (pc++) assume that next instruction is a jump
===========================================================================*/
/*
** masks for instruction properties. The format is:
** bits 0-1: op mode
** bits 2-3: C arg mode
** bits 4-5: B arg mode
** bit 6: instruction set register A
** bit 7: operator is a test
*/
enum OpArgMask {
OpArgN, /* argument is not used */
OpArgU, /* argument is used */
OpArgR, /* argument is a register or a jump offset */
OpArgK /* argument is a constant or register/constant */
};
LUAI_DATA const lu_byte luaP_opmodes[NUM_OPCODES];
#define getOpMode(m) (cast(enum OpMode, luaP_opmodes[m] & 3))
#define getBMode(m) (cast(enum OpArgMask, (luaP_opmodes[m] >> 4) & 3))
#define getCMode(m) (cast(enum OpArgMask, (luaP_opmodes[m] >> 2) & 3))
#define testAMode(m) (luaP_opmodes[m] & (1 << 6))
#define testTMode(m) (luaP_opmodes[m] & (1 << 7))
LUAI_DATA const char *const luaP_opnames[NUM_OPCODES+1]; /* opcode names */
/* number of list items to accumulate before a SETLIST instruction */
#define LFIELDS_PER_FLUSH 50
#endif
| 8,086 | 29.063197 | 77 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lualib.h
|
/*
** $Id: lualib.h,v 1.36.1.1 2007/12/27 13:02:25 roberto Exp $
** Lua standard libraries
** See Copyright Notice in lua.h
*/
#ifndef lualib_h
#define lualib_h
#include "lua.h"
/* Key to file-handle type */
#define LUA_FILEHANDLE "FILE*"
#define LUA_COLIBNAME "coroutine"
LUALIB_API int (luaopen_base) (lua_State *L);
#define LUA_TABLIBNAME "table"
LUALIB_API int (luaopen_table) (lua_State *L);
#define LUA_IOLIBNAME "io"
LUALIB_API int (luaopen_io) (lua_State *L);
#define LUA_OSLIBNAME "os"
LUALIB_API int (luaopen_os) (lua_State *L);
#define LUA_STRLIBNAME "string"
LUALIB_API int (luaopen_string) (lua_State *L);
#define LUA_MATHLIBNAME "math"
LUALIB_API int (luaopen_math) (lua_State *L);
#define LUA_DBLIBNAME "debug"
LUALIB_API int (luaopen_debug) (lua_State *L);
#define LUA_LOADLIBNAME "package"
LUALIB_API int (luaopen_package) (lua_State *L);
/* open all previous libraries */
LUALIB_API void (luaL_openlibs) (lua_State *L);
#ifndef lua_assert
#define lua_assert(x) ((void)0)
#endif
#endif
| 1,026 | 18.018519 | 61 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lstate.h
|
/*
** $Id: lstate.h,v 2.24.1.2 2008/01/03 15:20:39 roberto Exp $
** Global State
** See Copyright Notice in lua.h
*/
#ifndef lstate_h
#define lstate_h
#include "lua.h"
#include "lobject.h"
#include "ltm.h"
#include "lzio.h"
struct lua_longjmp; /* defined in ldo.c */
/* table of globals */
#define gt(L) (&L->l_gt)
/* registry */
#define registry(L) (&G(L)->l_registry)
/* extra stack space to handle TM calls and some other extras */
#define EXTRA_STACK 5
#define BASIC_CI_SIZE 8
#define BASIC_STACK_SIZE (2*LUA_MINSTACK)
typedef struct stringtable {
GCObject **hash;
lu_int32 nuse; /* number of elements */
int size;
} stringtable;
/*
** informations about a call
*/
typedef struct CallInfo {
StkId base; /* base for this function */
StkId func; /* function index in the stack */
StkId top; /* top for this function */
const Instruction *savedpc;
int nresults; /* expected number of results from this function */
int tailcalls; /* number of tail calls lost under this entry */
} CallInfo;
#define curr_func(L) (clvalue(L->ci->func))
#define ci_func(ci) (clvalue((ci)->func))
#define f_isLua(ci) (!ci_func(ci)->c.isC)
#define isLua(ci) (ttisfunction((ci)->func) && f_isLua(ci))
/*
** `global state', shared by all threads of this state
*/
typedef struct global_State {
stringtable strt; /* hash table for strings */
lua_Alloc frealloc; /* function to reallocate memory */
void *ud; /* auxiliary data to `frealloc' */
lu_byte currentwhite;
lu_byte gcstate; /* state of garbage collector */
int sweepstrgc; /* position of sweep in `strt' */
GCObject *rootgc; /* list of all collectable objects */
GCObject **sweepgc; /* position of sweep in `rootgc' */
GCObject *gray; /* list of gray objects */
GCObject *grayagain; /* list of objects to be traversed atomically */
GCObject *weak; /* list of weak tables (to be cleared) */
GCObject *tmudata; /* last element of list of userdata to be GC */
Mbuffer buff; /* temporary buffer for string concatentation */
lu_mem GCthreshold;
lu_mem totalbytes; /* number of bytes currently allocated */
lu_mem estimate; /* an estimate of number of bytes actually in use */
lu_mem gcdept; /* how much GC is `behind schedule' */
int gcpause; /* size of pause between successive GCs */
int gcstepmul; /* GC `granularity' */
lua_CFunction panic; /* to be called in unprotected errors */
TValue l_registry;
struct lua_State *mainthread;
UpVal uvhead; /* head of double-linked list of all open upvalues */
struct Table *mt[NUM_TAGS]; /* metatables for basic types */
TString *tmname[TM_N]; /* array with tag-method names */
} global_State;
/*
** `per thread' state
*/
struct lua_State {
CommonHeader;
lu_byte status;
StkId top; /* first free slot in the stack */
StkId base; /* base of current function */
global_State *l_G;
CallInfo *ci; /* call info for current function */
const Instruction *savedpc; /* `savedpc' of current function */
StkId stack_last; /* last free slot in the stack */
StkId stack; /* stack base */
CallInfo *end_ci; /* points after end of ci array*/
CallInfo *base_ci; /* array of CallInfo's */
int stacksize;
int size_ci; /* size of array `base_ci' */
unsigned short nCcalls; /* number of nested C calls */
unsigned short baseCcalls; /* nested C calls when resuming coroutine */
lu_byte hookmask;
lu_byte allowhook;
int basehookcount;
int hookcount;
lua_Hook hook;
TValue l_gt; /* table of globals */
TValue env; /* temporary place for environments */
GCObject *openupval; /* list of open upvalues in this stack */
GCObject *gclist;
struct lua_longjmp *errorJmp; /* current error recover point */
ptrdiff_t errfunc; /* current error handling function (stack index) */
};
#define G(L) (L->l_G)
/*
** Union of all collectable objects
*/
union GCObject {
GCheader gch;
union TString ts;
union Udata u;
union Closure cl;
struct Table h;
struct Proto p;
struct UpVal uv;
struct lua_State th; /* thread */
};
/* macros to convert a GCObject into a specific value */
#define rawgco2ts(o) check_exp((o)->gch.tt == LUA_TSTRING, &((o)->ts))
#define gco2ts(o) (&rawgco2ts(o)->tsv)
#define rawgco2u(o) check_exp((o)->gch.tt == LUA_TUSERDATA, &((o)->u))
#define gco2u(o) (&rawgco2u(o)->uv)
#define gco2cl(o) check_exp((o)->gch.tt == LUA_TFUNCTION, &((o)->cl))
#define gco2h(o) check_exp((o)->gch.tt == LUA_TTABLE, &((o)->h))
#define gco2p(o) check_exp((o)->gch.tt == LUA_TPROTO, &((o)->p))
#define gco2uv(o) check_exp((o)->gch.tt == LUA_TUPVAL, &((o)->uv))
#define ngcotouv(o) \
check_exp((o) == NULL || (o)->gch.tt == LUA_TUPVAL, &((o)->uv))
#define gco2th(o) check_exp((o)->gch.tt == LUA_TTHREAD, &((o)->th))
/* macro to convert any Lua object into a GCObject */
#define obj2gco(v) (cast(GCObject *, (v)))
LUAI_FUNC lua_State *luaE_newthread (lua_State *L);
LUAI_FUNC void luaE_freethread (lua_State *L, lua_State *L1);
#endif
| 5,011 | 28.482353 | 74 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/ltable.h
|
/*
** $Id: ltable.h,v 2.10.1.1 2007/12/27 13:02:25 roberto Exp $
** Lua tables (hash)
** See Copyright Notice in lua.h
*/
#ifndef ltable_h
#define ltable_h
#include "lobject.h"
#define gnode(t,i) (&(t)->node[i])
#define gkey(n) (&(n)->i_key.nk)
#define gval(n) (&(n)->i_val)
#define gnext(n) ((n)->i_key.nk.next)
#define key2tval(n) (&(n)->i_key.tvk)
LUAI_FUNC const TValue *luaH_getnum (Table *t, int key);
LUAI_FUNC TValue *luaH_setnum (lua_State *L, Table *t, int key);
LUAI_FUNC const TValue *luaH_getstr (Table *t, TString *key);
LUAI_FUNC TValue *luaH_setstr (lua_State *L, Table *t, TString *key);
LUAI_FUNC const TValue *luaH_get (Table *t, const TValue *key);
LUAI_FUNC TValue *luaH_set (lua_State *L, Table *t, const TValue *key);
LUAI_FUNC Table *luaH_new (lua_State *L, int narray, int lnhash);
LUAI_FUNC void luaH_resizearray (lua_State *L, Table *t, int nasize);
LUAI_FUNC void luaH_free (lua_State *L, Table *t);
LUAI_FUNC int luaH_next (lua_State *L, Table *t, StkId key);
LUAI_FUNC int luaH_getn (Table *t);
#if defined(LUA_DEBUG)
LUAI_FUNC Node *luaH_mainposition (const Table *t, const TValue *key);
LUAI_FUNC int luaH_isdummy (Node *n);
#endif
#endif
| 1,184 | 27.902439 | 71 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lobject.h
|
/*
** $Id: lobject.h,v 2.20.1.2 2008/08/06 13:29:48 roberto Exp $
** Type definitions for Lua objects
** See Copyright Notice in lua.h
*/
#ifndef lobject_h
#define lobject_h
#include <stdarg.h>
#include "llimits.h"
#include "lua.h"
/* tags for values visible from Lua */
#define LAST_TAG LUA_TTHREAD
#define NUM_TAGS (LAST_TAG+1)
/*
** Extra tags for non-values
*/
#define LUA_TPROTO (LAST_TAG+1)
#define LUA_TUPVAL (LAST_TAG+2)
#define LUA_TDEADKEY (LAST_TAG+3)
/*
** Union of all collectable objects
*/
typedef union GCObject GCObject;
/*
** Common Header for all collectable objects (in macro form, to be
** included in other objects)
*/
#define CommonHeader GCObject *next; lu_byte tt; lu_byte marked
/*
** Common header in struct form
*/
typedef struct GCheader {
CommonHeader;
} GCheader;
/*
** Union of all Lua values
*/
typedef union {
GCObject *gc;
void *p;
lua_Number n;
int b;
} Value;
/*
** Tagged Values
*/
#define TValuefields Value value; int tt
typedef struct lua_TValue {
TValuefields;
} TValue;
/* Macros to test type */
#define ttisnil(o) (ttype(o) == LUA_TNIL)
#define ttisnumber(o) (ttype(o) == LUA_TNUMBER)
#define ttisstring(o) (ttype(o) == LUA_TSTRING)
#define ttistable(o) (ttype(o) == LUA_TTABLE)
#define ttisfunction(o) (ttype(o) == LUA_TFUNCTION)
#define ttisboolean(o) (ttype(o) == LUA_TBOOLEAN)
#define ttisuserdata(o) (ttype(o) == LUA_TUSERDATA)
#define ttisthread(o) (ttype(o) == LUA_TTHREAD)
#define ttislightuserdata(o) (ttype(o) == LUA_TLIGHTUSERDATA)
/* Macros to access values */
#define ttype(o) ((o)->tt)
#define gcvalue(o) check_exp(iscollectable(o), (o)->value.gc)
#define pvalue(o) check_exp(ttislightuserdata(o), (o)->value.p)
#define nvalue(o) check_exp(ttisnumber(o), (o)->value.n)
#define rawtsvalue(o) check_exp(ttisstring(o), &(o)->value.gc->ts)
#define tsvalue(o) (&rawtsvalue(o)->tsv)
#define rawuvalue(o) check_exp(ttisuserdata(o), &(o)->value.gc->u)
#define uvalue(o) (&rawuvalue(o)->uv)
#define clvalue(o) check_exp(ttisfunction(o), &(o)->value.gc->cl)
#define hvalue(o) check_exp(ttistable(o), &(o)->value.gc->h)
#define bvalue(o) check_exp(ttisboolean(o), (o)->value.b)
#define thvalue(o) check_exp(ttisthread(o), &(o)->value.gc->th)
#define l_isfalse(o) (ttisnil(o) || (ttisboolean(o) && bvalue(o) == 0))
/*
** for internal debug only
*/
#define checkconsistency(obj) \
lua_assert(!iscollectable(obj) || (ttype(obj) == (obj)->value.gc->gch.tt))
#define checkliveness(g,obj) \
lua_assert(!iscollectable(obj) || \
((ttype(obj) == (obj)->value.gc->gch.tt) && !isdead(g, (obj)->value.gc)))
/* Macros to set values */
#define setnilvalue(obj) ((obj)->tt=LUA_TNIL)
#define setnvalue(obj,x) \
{ TValue *i_o=(obj); i_o->value.n=(x); i_o->tt=LUA_TNUMBER; }
#define setpvalue(obj,x) \
{ TValue *i_o=(obj); i_o->value.p=(x); i_o->tt=LUA_TLIGHTUSERDATA; }
#define setbvalue(obj,x) \
{ TValue *i_o=(obj); i_o->value.b=(x); i_o->tt=LUA_TBOOLEAN; }
#define setsvalue(L,obj,x) \
{ TValue *i_o=(obj); \
i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TSTRING; \
checkliveness(G(L),i_o); }
#define setuvalue(L,obj,x) \
{ TValue *i_o=(obj); \
i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TUSERDATA; \
checkliveness(G(L),i_o); }
#define setthvalue(L,obj,x) \
{ TValue *i_o=(obj); \
i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TTHREAD; \
checkliveness(G(L),i_o); }
#define setclvalue(L,obj,x) \
{ TValue *i_o=(obj); \
i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TFUNCTION; \
checkliveness(G(L),i_o); }
#define sethvalue(L,obj,x) \
{ TValue *i_o=(obj); \
i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TTABLE; \
checkliveness(G(L),i_o); }
#define setptvalue(L,obj,x) \
{ TValue *i_o=(obj); \
i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TPROTO; \
checkliveness(G(L),i_o); }
#define setobj(L,obj1,obj2) \
{ const TValue *o2=(obj2); TValue *o1=(obj1); \
o1->value = o2->value; o1->tt=o2->tt; \
checkliveness(G(L),o1); }
/*
** different types of sets, according to destination
*/
/* from stack to (same) stack */
#define setobjs2s setobj
/* to stack (not from same stack) */
#define setobj2s setobj
#define setsvalue2s setsvalue
#define sethvalue2s sethvalue
#define setptvalue2s setptvalue
/* from table to same table */
#define setobjt2t setobj
/* to table */
#define setobj2t setobj
/* to new object */
#define setobj2n setobj
#define setsvalue2n setsvalue
#define setttype(obj, tt) (ttype(obj) = (tt))
#define iscollectable(o) (ttype(o) >= LUA_TSTRING)
typedef TValue *StkId; /* index to stack elements */
/*
** String headers for string table
*/
typedef union TString {
L_Umaxalign dummy; /* ensures maximum alignment for strings */
struct {
CommonHeader;
lu_byte reserved;
unsigned int hash;
size_t len;
} tsv;
} TString;
#define getstr(ts) cast(const char *, (ts) + 1)
#define svalue(o) getstr(rawtsvalue(o))
typedef union Udata {
L_Umaxalign dummy; /* ensures maximum alignment for `local' udata */
struct {
CommonHeader;
struct Table *metatable;
struct Table *env;
size_t len;
} uv;
} Udata;
/*
** Function Prototypes
*/
typedef struct Proto {
CommonHeader;
TValue *k; /* constants used by the function */
Instruction *code;
struct Proto **p; /* functions defined inside the function */
int *lineinfo; /* map from opcodes to source lines */
struct LocVar *locvars; /* information about local variables */
TString **upvalues; /* upvalue names */
TString *source;
int sizeupvalues;
int sizek; /* size of `k' */
int sizecode;
int sizelineinfo;
int sizep; /* size of `p' */
int sizelocvars;
int linedefined;
int lastlinedefined;
GCObject *gclist;
lu_byte nups; /* number of upvalues */
lu_byte numparams;
lu_byte is_vararg;
lu_byte maxstacksize;
} Proto;
/* masks for new-style vararg */
#define VARARG_HASARG 1
#define VARARG_ISVARARG 2
#define VARARG_NEEDSARG 4
typedef struct LocVar {
TString *varname;
int startpc; /* first point where variable is active */
int endpc; /* first point where variable is dead */
} LocVar;
/*
** Upvalues
*/
typedef struct UpVal {
CommonHeader;
TValue *v; /* points to stack or to its own value */
union {
TValue value; /* the value (when closed) */
struct { /* double linked list (when open) */
struct UpVal *prev;
struct UpVal *next;
} l;
} u;
} UpVal;
/*
** Closures
*/
#define ClosureHeader \
CommonHeader; lu_byte isC; lu_byte nupvalues; GCObject *gclist; \
struct Table *env
typedef struct CClosure {
ClosureHeader;
lua_CFunction f;
TValue upvalue[1];
} CClosure;
typedef struct LClosure {
ClosureHeader;
struct Proto *p;
UpVal *upvals[1];
} LClosure;
typedef union Closure {
CClosure c;
LClosure l;
} Closure;
#define iscfunction(o) (ttype(o) == LUA_TFUNCTION && clvalue(o)->c.isC)
#define isLfunction(o) (ttype(o) == LUA_TFUNCTION && !clvalue(o)->c.isC)
/*
** Tables
*/
typedef union TKey {
struct {
TValuefields;
struct Node *next; /* for chaining */
} nk;
TValue tvk;
} TKey;
typedef struct Node {
TValue i_val;
TKey i_key;
} Node;
typedef struct Table {
CommonHeader;
lu_byte flags; /* 1<<p means tagmethod(p) is not present */
lu_byte lsizenode; /* log2 of size of `node' array */
struct Table *metatable;
TValue *array; /* array part */
Node *node;
Node *lastfree; /* any free position is before this position */
GCObject *gclist;
int sizearray; /* size of `array' array */
} Table;
/*
** `module' operation for hashing (size is always a power of 2)
*/
#define lmod(s,size) \
(check_exp((size&(size-1))==0, (cast(int, (s) & ((size)-1)))))
#define twoto(x) (1<<(x))
#define sizenode(t) (twoto((t)->lsizenode))
#define luaO_nilobject (&luaO_nilobject_)
LUAI_DATA const TValue luaO_nilobject_;
#define ceillog2(x) (luaO_log2((x)-1) + 1)
LUAI_FUNC int luaO_log2 (unsigned int x);
LUAI_FUNC int luaO_int2fb (unsigned int x);
LUAI_FUNC int luaO_fb2int (int x);
LUAI_FUNC int luaO_rawequalObj (const TValue *t1, const TValue *t2);
LUAI_FUNC int luaO_str2d (const char *s, lua_Number *result);
LUAI_FUNC const char *luaO_pushvfstring (lua_State *L, const char *fmt,
va_list argp);
LUAI_FUNC const char *luaO_pushfstring (lua_State *L, const char *fmt, ...);
LUAI_FUNC void luaO_chunkid (char *out, const char *source, size_t len);
#endif
| 8,502 | 21.259162 | 76 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/ltm.h
|
/*
** $Id: ltm.h,v 2.6.1.1 2007/12/27 13:02:25 roberto Exp $
** Tag methods
** See Copyright Notice in lua.h
*/
#ifndef ltm_h
#define ltm_h
#include "lobject.h"
/*
* WARNING: if you change the order of this enumeration,
* grep "ORDER TM"
*/
typedef enum {
TM_INDEX,
TM_NEWINDEX,
TM_GC,
TM_MODE,
TM_EQ, /* last tag method with `fast' access */
TM_ADD,
TM_SUB,
TM_MUL,
TM_DIV,
TM_MOD,
TM_POW,
TM_UNM,
TM_LEN,
TM_LT,
TM_LE,
TM_CONCAT,
TM_CALL,
TM_N /* number of elements in the enum */
} TMS;
#define gfasttm(g,et,e) ((et) == NULL ? NULL : \
((et)->flags & (1u<<(e))) ? NULL : luaT_gettm(et, e, (g)->tmname[e]))
#define fasttm(l,et,e) gfasttm(G(l), et, e)
LUAI_DATA const char *const luaT_typenames[];
LUAI_FUNC const TValue *luaT_gettm (Table *events, TMS event, TString *ename);
LUAI_FUNC const TValue *luaT_gettmbyobj (lua_State *L, const TValue *o,
TMS event);
LUAI_FUNC void luaT_init (lua_State *L);
#endif
| 1,018 | 17.527273 | 78 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lgc.h
|
/*
** $Id: lgc.h,v 2.15.1.1 2007/12/27 13:02:25 roberto Exp $
** Garbage Collector
** See Copyright Notice in lua.h
*/
#ifndef lgc_h
#define lgc_h
#include "lobject.h"
/*
** Possible states of the Garbage Collector
*/
#define GCSpause 0
#define GCSpropagate 1
#define GCSsweepstring 2
#define GCSsweep 3
#define GCSfinalize 4
/*
** some userful bit tricks
*/
#define resetbits(x,m) ((x) &= cast(lu_byte, ~(m)))
#define setbits(x,m) ((x) |= (m))
#define testbits(x,m) ((x) & (m))
#define bitmask(b) (1<<(b))
#define bit2mask(b1,b2) (bitmask(b1) | bitmask(b2))
#define l_setbit(x,b) setbits(x, bitmask(b))
#define resetbit(x,b) resetbits(x, bitmask(b))
#define testbit(x,b) testbits(x, bitmask(b))
#define set2bits(x,b1,b2) setbits(x, (bit2mask(b1, b2)))
#define reset2bits(x,b1,b2) resetbits(x, (bit2mask(b1, b2)))
#define test2bits(x,b1,b2) testbits(x, (bit2mask(b1, b2)))
/*
** Layout for bit use in `marked' field:
** bit 0 - object is white (type 0)
** bit 1 - object is white (type 1)
** bit 2 - object is black
** bit 3 - for userdata: has been finalized
** bit 3 - for tables: has weak keys
** bit 4 - for tables: has weak values
** bit 5 - object is fixed (should not be collected)
** bit 6 - object is "super" fixed (only the main thread)
*/
#define WHITE0BIT 0
#define WHITE1BIT 1
#define BLACKBIT 2
#define FINALIZEDBIT 3
#define KEYWEAKBIT 3
#define VALUEWEAKBIT 4
#define FIXEDBIT 5
#define SFIXEDBIT 6
#define WHITEBITS bit2mask(WHITE0BIT, WHITE1BIT)
#define iswhite(x) test2bits((x)->gch.marked, WHITE0BIT, WHITE1BIT)
#define isblack(x) testbit((x)->gch.marked, BLACKBIT)
#define isgray(x) (!isblack(x) && !iswhite(x))
#define otherwhite(g) (g->currentwhite ^ WHITEBITS)
#define isdead(g,v) ((v)->gch.marked & otherwhite(g) & WHITEBITS)
#define changewhite(x) ((x)->gch.marked ^= WHITEBITS)
#define gray2black(x) l_setbit((x)->gch.marked, BLACKBIT)
#define valiswhite(x) (iscollectable(x) && iswhite(gcvalue(x)))
#define luaC_white(g) cast(lu_byte, (g)->currentwhite & WHITEBITS)
#define luaC_checkGC(L) { \
condhardstacktests(luaD_reallocstack(L, L->stacksize - EXTRA_STACK - 1)); \
if (G(L)->totalbytes >= G(L)->GCthreshold) \
luaC_step(L); }
#define luaC_barrier(L,p,v) { if (valiswhite(v) && isblack(obj2gco(p))) \
luaC_barrierf(L,obj2gco(p),gcvalue(v)); }
#define luaC_barriert(L,t,v) { if (valiswhite(v) && isblack(obj2gco(t))) \
luaC_barrierback(L,t); }
#define luaC_objbarrier(L,p,o) \
{ if (iswhite(obj2gco(o)) && isblack(obj2gco(p))) \
luaC_barrierf(L,obj2gco(p),obj2gco(o)); }
#define luaC_objbarriert(L,t,o) \
{ if (iswhite(obj2gco(o)) && isblack(obj2gco(t))) luaC_barrierback(L,t); }
LUAI_FUNC size_t luaC_separateudata (lua_State *L, int all);
LUAI_FUNC void luaC_callGCTM (lua_State *L);
LUAI_FUNC void luaC_freeall (lua_State *L);
LUAI_FUNC void luaC_step (lua_State *L);
LUAI_FUNC void luaC_fullgc (lua_State *L);
LUAI_FUNC void luaC_link (lua_State *L, GCObject *o, lu_byte tt);
LUAI_FUNC void luaC_linkupval (lua_State *L, UpVal *uv);
LUAI_FUNC void luaC_barrierf (lua_State *L, GCObject *o, GCObject *v);
LUAI_FUNC void luaC_barrierback (lua_State *L, Table *t);
#endif
| 3,159 | 27.468468 | 77 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/ldo.h
|
/*
** $Id: ldo.h,v 2.7.1.1 2007/12/27 13:02:25 roberto Exp $
** Stack and Call structure of Lua
** See Copyright Notice in lua.h
*/
#ifndef ldo_h
#define ldo_h
#include "lobject.h"
#include "lstate.h"
#include "lzio.h"
#define luaD_checkstack(L,n) \
if ((char *)L->stack_last - (char *)L->top <= (n)*(int)sizeof(TValue)) \
luaD_growstack(L, n); \
else condhardstacktests(luaD_reallocstack(L, L->stacksize - EXTRA_STACK - 1));
#define incr_top(L) {luaD_checkstack(L,1); L->top++;}
#define savestack(L,p) ((char *)(p) - (char *)L->stack)
#define restorestack(L,n) ((TValue *)((char *)L->stack + (n)))
#define saveci(L,p) ((char *)(p) - (char *)L->base_ci)
#define restoreci(L,n) ((CallInfo *)((char *)L->base_ci + (n)))
/* results from luaD_precall */
#define PCRLUA 0 /* initiated a call to a Lua function */
#define PCRC 1 /* did a call to a C function */
#define PCRYIELD 2 /* C funtion yielded */
/* type of protected functions, to be ran by `runprotected' */
typedef void (*Pfunc) (lua_State *L, void *ud);
LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name);
LUAI_FUNC void luaD_callhook (lua_State *L, int event, int line);
LUAI_FUNC int luaD_precall (lua_State *L, StkId func, int nresults);
LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults);
LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u,
ptrdiff_t oldtop, ptrdiff_t ef);
LUAI_FUNC int luaD_poscall (lua_State *L, StkId firstResult);
LUAI_FUNC void luaD_reallocCI (lua_State *L, int newsize);
LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize);
LUAI_FUNC void luaD_growstack (lua_State *L, int n);
LUAI_FUNC void luaD_throw (lua_State *L, int errcode);
LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud);
LUAI_FUNC void luaD_seterrorobj (lua_State *L, int errcode, StkId oldtop);
#endif
| 1,897 | 31.724138 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lcode.h
|
/*
** $Id: lcode.h,v 1.48.1.1 2007/12/27 13:02:25 roberto Exp $
** Code generator for Lua
** See Copyright Notice in lua.h
*/
#ifndef lcode_h
#define lcode_h
#include "llex.h"
#include "lobject.h"
#include "lopcodes.h"
#include "lparser.h"
/*
** Marks the end of a patch list. It is an invalid value both as an absolute
** address, and as a list link (would link an element to itself).
*/
#define NO_JUMP (-1)
/*
** grep "ORDER OPR" if you change these enums
*/
typedef enum BinOpr {
OPR_ADD, OPR_SUB, OPR_MUL, OPR_DIV, OPR_MOD, OPR_POW,
OPR_CONCAT,
OPR_NE, OPR_EQ,
OPR_LT, OPR_LE, OPR_GT, OPR_GE,
OPR_AND, OPR_OR,
OPR_NOBINOPR
} BinOpr;
typedef enum UnOpr { OPR_MINUS, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr;
#define getcode(fs,e) ((fs)->f->code[(e)->u.s.info])
#define luaK_codeAsBx(fs,o,A,sBx) luaK_codeABx(fs,o,A,(sBx)+MAXARG_sBx)
#define luaK_setmultret(fs,e) luaK_setreturns(fs, e, LUA_MULTRET)
LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx);
LUAI_FUNC int luaK_codeABC (FuncState *fs, OpCode o, int A, int B, int C);
LUAI_FUNC void luaK_fixline (FuncState *fs, int line);
LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n);
LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n);
LUAI_FUNC void luaK_checkstack (FuncState *fs, int n);
LUAI_FUNC int luaK_stringK (FuncState *fs, TString *s);
LUAI_FUNC int luaK_numberK (FuncState *fs, lua_Number r);
LUAI_FUNC void luaK_dischargevars (FuncState *fs, expdesc *e);
LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e);
LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key);
LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k);
LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e);
LUAI_FUNC void luaK_setreturns (FuncState *fs, expdesc *e, int nresults);
LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e);
LUAI_FUNC int luaK_jump (FuncState *fs);
LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret);
LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target);
LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list);
LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2);
LUAI_FUNC int luaK_getlabel (FuncState *fs);
LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v);
LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v);
LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, expdesc *v2);
LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore);
#endif
| 2,750 | 34.727273 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/llex.h
|
/*
** $Id: llex.h,v 1.58.1.1 2007/12/27 13:02:25 roberto Exp $
** Lexical Analyzer
** See Copyright Notice in lua.h
*/
#ifndef llex_h
#define llex_h
#include "lobject.h"
#include "lzio.h"
#define FIRST_RESERVED 257
/* maximum length of a reserved word */
#define TOKEN_LEN (sizeof("function")/sizeof(char))
/*
* WARNING: if you change the order of this enumeration,
* grep "ORDER RESERVED"
*/
enum RESERVED {
/* terminal symbols denoted by reserved words */
TK_AND = FIRST_RESERVED, TK_BREAK,
TK_DO, TK_ELSE, TK_ELSEIF, TK_END, TK_FALSE, TK_FOR, TK_FUNCTION,
TK_IF, TK_IN, TK_LOCAL, TK_NIL, TK_NOT, TK_OR, TK_REPEAT,
TK_RETURN, TK_THEN, TK_TRUE, TK_UNTIL, TK_WHILE,
/* other terminal symbols */
TK_CONCAT, TK_DOTS, TK_EQ, TK_GE, TK_LE, TK_NE, TK_NUMBER,
TK_NAME, TK_STRING, TK_EOS
};
/* number of reserved words */
#define NUM_RESERVED (cast(int, TK_WHILE-FIRST_RESERVED+1))
/* array with token `names' */
LUAI_DATA const char *const luaX_tokens [];
typedef union {
lua_Number r;
TString *ts;
} SemInfo; /* semantics information */
typedef struct Token {
int token;
SemInfo seminfo;
} Token;
typedef struct LexState {
int current; /* current character (charint) */
int linenumber; /* input line counter */
int lastline; /* line of last token `consumed' */
Token t; /* current token */
Token lookahead; /* look ahead token */
struct FuncState *fs; /* `FuncState' is private to the parser */
struct lua_State *L;
ZIO *z; /* input stream */
Mbuffer *buff; /* buffer for tokens */
TString *source; /* current source name */
char decpoint; /* locale decimal point */
} LexState;
LUAI_FUNC void luaX_init (lua_State *L);
LUAI_FUNC void luaX_setinput (lua_State *L, LexState *ls, ZIO *z,
TString *source);
LUAI_FUNC TString *luaX_newstring (LexState *ls, const char *str, size_t l);
LUAI_FUNC void luaX_next (LexState *ls);
LUAI_FUNC void luaX_lookahead (LexState *ls);
LUAI_FUNC void luaX_lexerror (LexState *ls, const char *msg, int token);
LUAI_FUNC void luaX_syntaxerror (LexState *ls, const char *s);
LUAI_FUNC const char *luaX_token2str (LexState *ls, int token);
#endif
| 2,177 | 25.560976 | 76 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lmem.h
|
/*
** $Id: lmem.h,v 1.31.1.1 2007/12/27 13:02:25 roberto Exp $
** Interface to Memory Manager
** See Copyright Notice in lua.h
*/
#ifndef lmem_h
#define lmem_h
#include <stddef.h>
#include "llimits.h"
#include "lua.h"
#define MEMERRMSG "not enough memory"
#define luaM_reallocv(L,b,on,n,e) \
((cast(size_t, (n)+1) <= MAX_SIZET/(e)) ? /* +1 to avoid warnings */ \
luaM_realloc_(L, (b), (on)*(e), (n)*(e)) : \
luaM_toobig(L))
#define luaM_freemem(L, b, s) luaM_realloc_(L, (b), (s), 0)
#define luaM_free(L, b) luaM_realloc_(L, (b), sizeof(*(b)), 0)
#define luaM_freearray(L, b, n, t) luaM_reallocv(L, (b), n, 0, sizeof(t))
#define luaM_malloc(L,t) luaM_realloc_(L, NULL, 0, (t))
#define luaM_new(L,t) cast(t *, luaM_malloc(L, sizeof(t)))
#define luaM_newvector(L,n,t) \
cast(t *, luaM_reallocv(L, NULL, 0, n, sizeof(t)))
#define luaM_growvector(L,v,nelems,size,t,limit,e) \
if ((nelems)+1 > (size)) \
((v)=cast(t *, luaM_growaux_(L,v,&(size),sizeof(t),limit,e)))
#define luaM_reallocvector(L, v,oldn,n,t) \
((v)=cast(t *, luaM_reallocv(L, v, oldn, n, sizeof(t))))
LUAI_FUNC void *luaM_realloc_ (lua_State *L, void *block, size_t oldsize,
size_t size);
LUAI_FUNC void *luaM_toobig (lua_State *L);
LUAI_FUNC void *luaM_growaux_ (lua_State *L, void *block, int *size,
size_t size_elem, int limit,
const char *errormsg);
#endif
| 1,494 | 28.9 | 75 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/llimits.h
|
/*
** $Id: llimits.h,v 1.69.1.1 2007/12/27 13:02:25 roberto Exp $
** Limits, basic types, and some other `installation-dependent' definitions
** See Copyright Notice in lua.h
*/
#ifndef llimits_h
#define llimits_h
#include <limits.h>
#include <stddef.h>
#include "lua.h"
typedef LUAI_UINT32 lu_int32;
typedef LUAI_UMEM lu_mem;
typedef LUAI_MEM l_mem;
/* chars used as small naturals (so that `char' is reserved for characters) */
typedef unsigned char lu_byte;
#define MAX_SIZET ((size_t)(~(size_t)0)-2)
#define MAX_LUMEM ((lu_mem)(~(lu_mem)0)-2)
#define MAX_INT (INT_MAX-2) /* maximum value of an int (-2 for safety) */
/*
** conversion of pointer to integer
** this is for hashing only; there is no problem if the integer
** cannot hold the whole pointer value
*/
#define IntPoint(p) ((unsigned int)(lu_mem)(p))
/* type to ensure maximum alignment */
typedef LUAI_USER_ALIGNMENT_T L_Umaxalign;
/* result of a `usual argument conversion' over lua_Number */
typedef LUAI_UACNUMBER l_uacNumber;
/* internal assertions for in-house debugging */
#ifdef lua_assert
#define check_exp(c,e) (lua_assert(c), (e))
#define api_check(l,e) lua_assert(e)
#else
#define lua_assert(c) ((void)0)
#define check_exp(c,e) (e)
#define api_check luai_apicheck
#endif
#ifndef UNUSED
#define UNUSED(x) ((void)(x)) /* to avoid warnings */
#endif
#ifndef cast
#define cast(t, exp) ((t)(exp))
#endif
#define cast_byte(i) cast(lu_byte, (i))
#define cast_num(i) cast(lua_Number, (i))
#define cast_int(i) cast(int, (i))
/*
** type for virtual-machine instructions
** must be an unsigned with (at least) 4 bytes (see details in lopcodes.h)
*/
typedef lu_int32 Instruction;
/* maximum stack for a Lua function */
#define MAXSTACK 250
/* minimum size for the string table (must be power of 2) */
#ifndef MINSTRTABSIZE
#define MINSTRTABSIZE 32
#endif
/* minimum size for string buffer */
#ifndef LUA_MINBUFFER
#define LUA_MINBUFFER 32
#endif
#ifndef lua_lock
#define lua_lock(L) ((void) 0)
#define lua_unlock(L) ((void) 0)
#endif
#ifndef luai_threadyield
#define luai_threadyield(L) {lua_unlock(L); lua_lock(L);}
#endif
/*
** macro to control inclusion of some hard tests on stack reallocation
*/
#ifndef HARDSTACKTESTS
#define condhardstacktests(x) ((void)0)
#else
#define condhardstacktests(x) x
#endif
#endif
| 2,349 | 17.217054 | 78 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/luaconf.h
|
/*
** $Id: luaconf.h,v 1.82.1.7 2008/02/11 16:25:08 roberto Exp $
** Configuration file for Lua
** See Copyright Notice in lua.h
*/
#ifndef lconfig_h
#define lconfig_h
#include <limits.h>
#include <stddef.h>
/*
** ==================================================================
** Search for "@@" to find all configurable definitions.
** ===================================================================
*/
/*
@@ LUA_ANSI controls the use of non-ansi features.
** CHANGE it (define it) if you want Lua to avoid the use of any
** non-ansi feature or library.
*/
#if defined(__STRICT_ANSI__)
#define LUA_ANSI
#endif
#if !defined(LUA_ANSI) && defined(_WIN32)
#define LUA_WIN
#endif
#if defined(LUA_USE_LINUX)
#define LUA_USE_POSIX
#define LUA_USE_DLOPEN /* needs an extra library: -ldl */
#define LUA_USE_READLINE /* needs some extra libraries */
#endif
#if defined(LUA_USE_MACOSX)
#define LUA_USE_POSIX
#define LUA_DL_DYLD /* does not need extra library */
#endif
/*
@@ LUA_USE_POSIX includes all functionallity listed as X/Open System
@* Interfaces Extension (XSI).
** CHANGE it (define it) if your system is XSI compatible.
*/
#if defined(LUA_USE_POSIX)
#define LUA_USE_MKSTEMP
#define LUA_USE_ISATTY
#define LUA_USE_POPEN
#define LUA_USE_ULONGJMP
#endif
/*
@@ LUA_PATH and LUA_CPATH are the names of the environment variables that
@* Lua check to set its paths.
@@ LUA_INIT is the name of the environment variable that Lua
@* checks for initialization code.
** CHANGE them if you want different names.
*/
#define LUA_PATH "LUA_PATH"
#define LUA_CPATH "LUA_CPATH"
#define LUA_INIT "LUA_INIT"
/*
@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
@* Lua libraries.
@@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for
@* C libraries.
** CHANGE them if your machine has a non-conventional directory
** hierarchy or if you want to install your libraries in
** non-conventional directories.
*/
#if defined(_WIN32)
/*
** In Windows, any exclamation mark ('!') in the path is replaced by the
** path of the directory of the executable file of the current process.
*/
#define LUA_LDIR "!\\lua\\"
#define LUA_CDIR "!\\"
#define LUA_PATH_DEFAULT \
".\\?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \
LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua"
#define LUA_CPATH_DEFAULT \
".\\?.dll;" LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll"
#else
#define LUA_ROOT "/usr/local/"
#define LUA_LDIR LUA_ROOT "share/lua/5.1/"
#define LUA_CDIR LUA_ROOT "lib/lua/5.1/"
#define LUA_PATH_DEFAULT \
"./?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \
LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua"
#define LUA_CPATH_DEFAULT \
"./?.so;" LUA_CDIR"?.so;" LUA_CDIR"loadall.so"
#endif
/*
@@ LUA_DIRSEP is the directory separator (for submodules).
** CHANGE it if your machine does not use "/" as the directory separator
** and is not Windows. (On Windows Lua automatically uses "\".)
*/
#if defined(_WIN32)
#define LUA_DIRSEP "\\"
#else
#define LUA_DIRSEP "/"
#endif
/*
@@ LUA_PATHSEP is the character that separates templates in a path.
@@ LUA_PATH_MARK is the string that marks the substitution points in a
@* template.
@@ LUA_EXECDIR in a Windows path is replaced by the executable's
@* directory.
@@ LUA_IGMARK is a mark to ignore all before it when bulding the
@* luaopen_ function name.
** CHANGE them if for some reason your system cannot use those
** characters. (E.g., if one of those characters is a common character
** in file/directory names.) Probably you do not need to change them.
*/
#define LUA_PATHSEP ";"
#define LUA_PATH_MARK "?"
#define LUA_EXECDIR "!"
#define LUA_IGMARK "-"
/*
@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger.
** CHANGE that if ptrdiff_t is not adequate on your machine. (On most
** machines, ptrdiff_t gives a good choice between int or long.)
*/
#define LUA_INTEGER ptrdiff_t
/*
@@ LUA_API is a mark for all core API functions.
@@ LUALIB_API is a mark for all standard library functions.
** CHANGE them if you need to define those functions in some special way.
** For instance, if you want to create one Windows DLL with the core and
** the libraries, you may want to use the following definition (define
** LUA_BUILD_AS_DLL to get it).
*/
#if defined(LUA_BUILD_AS_DLL)
#if defined(LUA_CORE) || defined(LUA_LIB)
#define LUA_API __declspec(dllexport)
#else
#define LUA_API __declspec(dllimport)
#endif
#else
#define LUA_API extern
#endif
/* more often than not the libs go together with the core */
#define LUALIB_API LUA_API
/*
@@ LUAI_FUNC is a mark for all extern functions that are not to be
@* exported to outside modules.
@@ LUAI_DATA is a mark for all extern (const) variables that are not to
@* be exported to outside modules.
** CHANGE them if you need to mark them in some special way. Elf/gcc
** (versions 3.2 and later) mark them as "hidden" to optimize access
** when Lua is compiled as a shared library.
*/
#if defined(luaall_c)
#define LUAI_FUNC static
#define LUAI_DATA /* empty */
#elif defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
defined(__ELF__)
#define LUAI_FUNC __attribute__((visibility("hidden"))) extern
#define LUAI_DATA LUAI_FUNC
#else
#define LUAI_FUNC extern
#define LUAI_DATA extern
#endif
/*
@@ LUA_QL describes how error messages quote program elements.
** CHANGE it if you want a different appearance.
*/
#define LUA_QL(x) "'" x "'"
#define LUA_QS LUA_QL("%s")
/*
@@ LUA_IDSIZE gives the maximum size for the description of the source
@* of a function in debug information.
** CHANGE it if you want a different size.
*/
#define LUA_IDSIZE 60
/*
** {==================================================================
** Stand-alone configuration
** ===================================================================
*/
#if defined(lua_c) || defined(luaall_c)
/*
@@ lua_stdin_is_tty detects whether the standard input is a 'tty' (that
@* is, whether we're running lua interactively).
** CHANGE it if you have a better definition for non-POSIX/non-Windows
** systems.
*/
#if defined(LUA_USE_ISATTY)
#include <unistd.h>
#define lua_stdin_is_tty() isatty(0)
#elif defined(LUA_WIN)
#include <io.h>
#include <stdio.h>
#define lua_stdin_is_tty() _isatty(_fileno(stdin))
#else
#define lua_stdin_is_tty() 1 /* assume stdin is a tty */
#endif
/*
@@ LUA_PROMPT is the default prompt used by stand-alone Lua.
@@ LUA_PROMPT2 is the default continuation prompt used by stand-alone Lua.
** CHANGE them if you want different prompts. (You can also change the
** prompts dynamically, assigning to globals _PROMPT/_PROMPT2.)
*/
#define LUA_PROMPT "> "
#define LUA_PROMPT2 ">> "
/*
@@ LUA_PROGNAME is the default name for the stand-alone Lua program.
** CHANGE it if your stand-alone interpreter has a different name and
** your system is not able to detect that name automatically.
*/
#define LUA_PROGNAME "lua"
/*
@@ LUA_MAXINPUT is the maximum length for an input line in the
@* stand-alone interpreter.
** CHANGE it if you need longer lines.
*/
#define LUA_MAXINPUT 512
/*
@@ lua_readline defines how to show a prompt and then read a line from
@* the standard input.
@@ lua_saveline defines how to "save" a read line in a "history".
@@ lua_freeline defines how to free a line read by lua_readline.
** CHANGE them if you want to improve this functionality (e.g., by using
** GNU readline and history facilities).
*/
#if defined(LUA_USE_READLINE)
#include <stdio.h>
#include <readline/readline.h>
#include <readline/history.h>
#define lua_readline(L,b,p) ((void)L, ((b)=readline(p)) != NULL)
#define lua_saveline(L,idx) \
if (lua_strlen(L,idx) > 0) /* non-empty line? */ \
add_history(lua_tostring(L, idx)); /* add it to history */
#define lua_freeline(L,b) ((void)L, free(b))
#else
#define lua_readline(L,b,p) \
((void)L, fputs(p, stdout), fflush(stdout), /* show prompt */ \
fgets(b, LUA_MAXINPUT, stdin) != NULL) /* get line */
#define lua_saveline(L,idx) { (void)L; (void)idx; }
#define lua_freeline(L,b) { (void)L; (void)b; }
#endif
#endif
/* }================================================================== */
/*
@@ LUAI_GCPAUSE defines the default pause between garbage-collector cycles
@* as a percentage.
** CHANGE it if you want the GC to run faster or slower (higher values
** mean larger pauses which mean slower collection.) You can also change
** this value dynamically.
*/
#define LUAI_GCPAUSE 200 /* 200% (wait memory to double before next GC) */
/*
@@ LUAI_GCMUL defines the default speed of garbage collection relative to
@* memory allocation as a percentage.
** CHANGE it if you want to change the granularity of the garbage
** collection. (Higher values mean coarser collections. 0 represents
** infinity, where each step performs a full collection.) You can also
** change this value dynamically.
*/
#define LUAI_GCMUL 200 /* GC runs 'twice the speed' of memory allocation */
/*
@@ LUA_COMPAT_GETN controls compatibility with old getn behavior.
** CHANGE it (define it) if you want exact compatibility with the
** behavior of setn/getn in Lua 5.0.
*/
#undef LUA_COMPAT_GETN
/*
@@ LUA_COMPAT_LOADLIB controls compatibility about global loadlib.
** CHANGE it to undefined as soon as you do not need a global 'loadlib'
** function (the function is still available as 'package.loadlib').
*/
#undef LUA_COMPAT_LOADLIB
/*
@@ LUA_COMPAT_VARARG controls compatibility with old vararg feature.
** CHANGE it to undefined as soon as your programs use only '...' to
** access vararg parameters (instead of the old 'arg' table).
*/
#define LUA_COMPAT_VARARG
/*
@@ LUA_COMPAT_MOD controls compatibility with old math.mod function.
** CHANGE it to undefined as soon as your programs use 'math.fmod' or
** the new '%' operator instead of 'math.mod'.
*/
#define LUA_COMPAT_MOD
/*
@@ LUA_COMPAT_LSTR controls compatibility with old long string nesting
@* facility.
** CHANGE it to 2 if you want the old behaviour, or undefine it to turn
** off the advisory error when nesting [[...]].
*/
#define LUA_COMPAT_LSTR 1
/*
@@ LUA_COMPAT_GFIND controls compatibility with old 'string.gfind' name.
** CHANGE it to undefined as soon as you rename 'string.gfind' to
** 'string.gmatch'.
*/
#define LUA_COMPAT_GFIND
/*
@@ LUA_COMPAT_OPENLIB controls compatibility with old 'luaL_openlib'
@* behavior.
** CHANGE it to undefined as soon as you replace to 'luaL_register'
** your uses of 'luaL_openlib'
*/
#define LUA_COMPAT_OPENLIB
/*
@@ luai_apicheck is the assert macro used by the Lua-C API.
** CHANGE luai_apicheck if you want Lua to perform some checks in the
** parameters it gets from API calls. This may slow down the interpreter
** a bit, but may be quite useful when debugging C code that interfaces
** with Lua. A useful redefinition is to use assert.h.
*/
#if defined(LUA_USE_APICHECK)
#include <assert.h>
#define luai_apicheck(L,o) { (void)L; assert(o); }
#else
#define luai_apicheck(L,o) { (void)L; }
#endif
/*
@@ LUAI_BITSINT defines the number of bits in an int.
** CHANGE here if Lua cannot automatically detect the number of bits of
** your machine. Probably you do not need to change this.
*/
/* avoid overflows in comparison */
#if INT_MAX-20 < 32760
#define LUAI_BITSINT 16
#elif INT_MAX > 2147483640L
/* int has at least 32 bits */
#define LUAI_BITSINT 32
#else
#error "you must define LUA_BITSINT with number of bits in an integer"
#endif
/*
@@ LUAI_UINT32 is an unsigned integer with at least 32 bits.
@@ LUAI_INT32 is an signed integer with at least 32 bits.
@@ LUAI_UMEM is an unsigned integer big enough to count the total
@* memory used by Lua.
@@ LUAI_MEM is a signed integer big enough to count the total memory
@* used by Lua.
** CHANGE here if for some weird reason the default definitions are not
** good enough for your machine. (The definitions in the 'else'
** part always works, but may waste space on machines with 64-bit
** longs.) Probably you do not need to change this.
*/
#if LUAI_BITSINT >= 32
#define LUAI_UINT32 unsigned int
#define LUAI_INT32 int
#define LUAI_MAXINT32 INT_MAX
#define LUAI_UMEM size_t
#define LUAI_MEM ptrdiff_t
#else
/* 16-bit ints */
#define LUAI_UINT32 unsigned long
#define LUAI_INT32 long
#define LUAI_MAXINT32 LONG_MAX
#define LUAI_UMEM unsigned long
#define LUAI_MEM long
#endif
/*
@@ LUAI_MAXCALLS limits the number of nested calls.
** CHANGE it if you need really deep recursive calls. This limit is
** arbitrary; its only purpose is to stop infinite recursion before
** exhausting memory.
*/
#define LUAI_MAXCALLS 20000
/*
@@ LUAI_MAXCSTACK limits the number of Lua stack slots that a C function
@* can use.
** CHANGE it if you need lots of (Lua) stack space for your C
** functions. This limit is arbitrary; its only purpose is to stop C
** functions to consume unlimited stack space. (must be smaller than
** -LUA_REGISTRYINDEX)
*/
#define LUAI_MAXCSTACK 8000
/*
** {==================================================================
** CHANGE (to smaller values) the following definitions if your system
** has a small C stack. (Or you may want to change them to larger
** values if your system has a large C stack and these limits are
** too rigid for you.) Some of these constants control the size of
** stack-allocated arrays used by the compiler or the interpreter, while
** others limit the maximum number of recursive calls that the compiler
** or the interpreter can perform. Values too large may cause a C stack
** overflow for some forms of deep constructs.
** ===================================================================
*/
/*
@@ LUAI_MAXCCALLS is the maximum depth for nested C calls (short) and
@* syntactical nested non-terminals in a program.
*/
#define LUAI_MAXCCALLS 200
/*
@@ LUAI_MAXVARS is the maximum number of local variables per function
@* (must be smaller than 250).
*/
#define LUAI_MAXVARS 200
/*
@@ LUAI_MAXUPVALUES is the maximum number of upvalues per function
@* (must be smaller than 250).
*/
#define LUAI_MAXUPVALUES 60
/*
@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
*/
#define LUAL_BUFFERSIZE BUFSIZ
/* }================================================================== */
/*
** {==================================================================
@@ LUA_NUMBER is the type of numbers in Lua.
** CHANGE the following definitions only if you want to build Lua
** with a number type different from double. You may also need to
** change lua_number2int & lua_number2integer.
** ===================================================================
*/
#define LUA_NUMBER_DOUBLE
#define LUA_NUMBER double
/*
@@ LUAI_UACNUMBER is the result of an 'usual argument conversion'
@* over a number.
*/
#define LUAI_UACNUMBER double
/*
@@ LUA_NUMBER_SCAN is the format for reading numbers.
@@ LUA_NUMBER_FMT is the format for writing numbers.
@@ lua_number2str converts a number to a string.
@@ LUAI_MAXNUMBER2STR is maximum size of previous conversion.
@@ lua_str2number converts a string to a number.
*/
#define LUA_NUMBER_SCAN "%lf"
#define LUA_NUMBER_FMT "%.14g"
#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n))
#define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */
#define lua_str2number(s,p) strtod((s), (p))
/*
@@ The luai_num* macros define the primitive operations over numbers.
*/
#if defined(LUA_CORE)
#include <math.h>
#define luai_numadd(a,b) ((a)+(b))
#define luai_numsub(a,b) ((a)-(b))
#define luai_nummul(a,b) ((a)*(b))
#define luai_numdiv(a,b) ((a)/(b))
#define luai_nummod(a,b) ((a) - floor((a)/(b))*(b))
#define luai_numpow(a,b) (pow(a,b))
#define luai_numunm(a) (-(a))
#define luai_numeq(a,b) ((a)==(b))
#define luai_numlt(a,b) ((a)<(b))
#define luai_numle(a,b) ((a)<=(b))
#define luai_numisnan(a) (!luai_numeq((a), (a)))
#endif
/*
@@ lua_number2int is a macro to convert lua_Number to int.
@@ lua_number2integer is a macro to convert lua_Number to lua_Integer.
** CHANGE them if you know a faster way to convert a lua_Number to
** int (with any rounding method and without throwing errors) in your
** system. In Pentium machines, a naive typecast from double to int
** in C is extremely slow, so any alternative is worth trying.
*/
/* On a Pentium, resort to a trick */
#if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) && !defined(__SSE2__) && \
(defined(__i386) || defined (_M_IX86) || defined(__i386__))
/* On a Microsoft compiler, use assembler */
#if defined(_MSC_VER)
#define lua_number2int(i,d) __asm fld d __asm fistp i
#define lua_number2integer(i,n) lua_number2int(i, n)
/* the next trick should work on any Pentium, but sometimes clashes
with a DirectX idiosyncrasy */
#else
union luai_Cast { double l_d; long l_l; };
#define lua_number2int(i,d) \
{ volatile union luai_Cast u; u.l_d = (d) + 6755399441055744.0; (i) = u.l_l; }
#define lua_number2integer(i,n) lua_number2int(i, n)
#endif
/* this option always works, but may be slow */
#else
#define lua_number2int(i,d) ((i)=(int)(d))
#define lua_number2integer(i,d) ((i)=(lua_Integer)(d))
#endif
/* }================================================================== */
/*
@@ LUAI_USER_ALIGNMENT_T is a type that requires maximum alignment.
** CHANGE it if your system requires alignments larger than double. (For
** instance, if your system supports long doubles and they must be
** aligned in 16-byte boundaries, then you should add long double in the
** union.) Probably you do not need to change this.
*/
#define LUAI_USER_ALIGNMENT_T union { double u; void *s; long l; }
/*
@@ LUAI_THROW/LUAI_TRY define how Lua does exception handling.
** CHANGE them if you prefer to use longjmp/setjmp even with C++
** or if want/don't to use _longjmp/_setjmp instead of regular
** longjmp/setjmp. By default, Lua handles errors with exceptions when
** compiling as C++ code, with _longjmp/_setjmp when asked to use them,
** and with longjmp/setjmp otherwise.
*/
#if defined(__cplusplus)
/* C++ exceptions */
#define LUAI_THROW(L,c) throw(c)
#define LUAI_TRY(L,c,a) try { a } catch(...) \
{ if ((c)->status == 0) (c)->status = -1; }
#define luai_jmpbuf int /* dummy variable */
#elif defined(LUA_USE_ULONGJMP)
/* in Unix, try _longjmp/_setjmp (more efficient) */
#define LUAI_THROW(L,c) _longjmp((c)->b, 1)
#define LUAI_TRY(L,c,a) if (_setjmp((c)->b) == 0) { a }
#define luai_jmpbuf jmp_buf
#else
/* default handling with long jumps */
#define LUAI_THROW(L,c) longjmp((c)->b, 1)
#define LUAI_TRY(L,c,a) if (setjmp((c)->b) == 0) { a }
#define luai_jmpbuf jmp_buf
#endif
/*
@@ LUA_MAXCAPTURES is the maximum number of captures that a pattern
@* can do during pattern-matching.
** CHANGE it if you need more captures. This limit is arbitrary.
*/
#define LUA_MAXCAPTURES 32
/*
@@ lua_tmpnam is the function that the OS library uses to create a
@* temporary name.
@@ LUA_TMPNAMBUFSIZE is the maximum size of a name created by lua_tmpnam.
** CHANGE them if you have an alternative to tmpnam (which is considered
** insecure) or if you want the original tmpnam anyway. By default, Lua
** uses tmpnam except when POSIX is available, where it uses mkstemp.
*/
#if defined(loslib_c) || defined(luaall_c)
#if defined(LUA_USE_MKSTEMP)
#include <unistd.h>
#define LUA_TMPNAMBUFSIZE 32
#define lua_tmpnam(b,e) { \
strcpy(b, "/tmp/lua_XXXXXX"); \
e = mkstemp(b); \
if (e != -1) close(e); \
e = (e == -1); }
#else
#define LUA_TMPNAMBUFSIZE L_tmpnam
#define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); }
#endif
#endif
/*
@@ lua_popen spawns a new process connected to the current one through
@* the file streams.
** CHANGE it if you have a way to implement it in your system.
*/
#if defined(LUA_USE_POPEN)
#define lua_popen(L,c,m) ((void)L, fflush(NULL), popen(c,m))
#define lua_pclose(L,file) ((void)L, (pclose(file) != -1))
#elif defined(LUA_WIN)
#define lua_popen(L,c,m) ((void)L, _popen(c,m))
#define lua_pclose(L,file) ((void)L, (_pclose(file) != -1))
#else
#define lua_popen(L,c,m) ((void)((void)c, m), \
luaL_error(L, LUA_QL("popen") " not supported"), (FILE*)0)
#define lua_pclose(L,file) ((void)((void)L, file), 0)
#endif
/*
@@ LUA_DL_* define which dynamic-library system Lua should use.
** CHANGE here if Lua has problems choosing the appropriate
** dynamic-library system for your platform (either Windows' DLL, Mac's
** dyld, or Unix's dlopen). If your system is some kind of Unix, there
** is a good chance that it has dlopen, so LUA_DL_DLOPEN will work for
** it. To use dlopen you also need to adapt the src/Makefile (probably
** adding -ldl to the linker options), so Lua does not select it
** automatically. (When you change the makefile to add -ldl, you must
** also add -DLUA_USE_DLOPEN.)
** If you do not want any kind of dynamic library, undefine all these
** options.
** By default, _WIN32 gets LUA_DL_DLL and MAC OS X gets LUA_DL_DYLD.
*/
#if defined(LUA_USE_DLOPEN)
#define LUA_DL_DLOPEN
#endif
#if defined(LUA_WIN)
#define LUA_DL_DLL
#endif
/*
@@ LUAI_EXTRASPACE allows you to add user-specific data in a lua_State
@* (the data goes just *before* the lua_State pointer).
** CHANGE (define) this if you really need that. This value must be
** a multiple of the maximum alignment required for your machine.
*/
#define LUAI_EXTRASPACE 0
/*
@@ luai_userstate* allow user-specific actions on threads.
** CHANGE them if you defined LUAI_EXTRASPACE and need to do something
** extra when a thread is created/deleted/resumed/yielded.
*/
#define luai_userstateopen(L) ((void)L)
#define luai_userstateclose(L) ((void)L)
#define luai_userstatethread(L,L1) ((void)L)
#define luai_userstatefree(L) ((void)L)
#define luai_userstateresume(L,n) ((void)L)
#define luai_userstateyield(L,n) ((void)L)
/*
@@ LUA_INTFRMLEN is the length modifier for integer conversions
@* in 'string.format'.
@@ LUA_INTFRM_T is the integer type correspoding to the previous length
@* modifier.
** CHANGE them if your system supports long long or does not support long.
*/
#if defined(LUA_USELONGLONG)
#define LUA_INTFRMLEN "ll"
#define LUA_INTFRM_T long long
#else
#define LUA_INTFRMLEN "l"
#define LUA_INTFRM_T long
#endif
/* =================================================================== */
/*
** Local configuration. You can use this space to add your redefinitions
** without modifying the main part of the file.
*/
#endif
| 22,299 | 28.188482 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lfunc.h
|
/*
** $Id: lfunc.h,v 2.4.1.1 2007/12/27 13:02:25 roberto Exp $
** Auxiliary functions to manipulate prototypes and closures
** See Copyright Notice in lua.h
*/
#ifndef lfunc_h
#define lfunc_h
#include "lobject.h"
#define sizeCclosure(n) (cast(int, sizeof(CClosure)) + \
cast(int, sizeof(TValue)*((n)-1)))
#define sizeLclosure(n) (cast(int, sizeof(LClosure)) + \
cast(int, sizeof(TValue *)*((n)-1)))
LUAI_FUNC Proto *luaF_newproto (lua_State *L);
LUAI_FUNC Closure *luaF_newCclosure (lua_State *L, int nelems, Table *e);
LUAI_FUNC Closure *luaF_newLclosure (lua_State *L, int nelems, Table *e);
LUAI_FUNC UpVal *luaF_newupval (lua_State *L);
LUAI_FUNC UpVal *luaF_findupval (lua_State *L, StkId level);
LUAI_FUNC void luaF_close (lua_State *L, StkId level);
LUAI_FUNC void luaF_freeproto (lua_State *L, Proto *f);
LUAI_FUNC void luaF_freeclosure (lua_State *L, Closure *c);
LUAI_FUNC void luaF_freeupval (lua_State *L, UpVal *uv);
LUAI_FUNC const char *luaF_getlocalname (const Proto *func, int local_number,
int pc);
#endif
| 1,125 | 31.171429 | 77 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/strbuf.h
|
/* strbuf - String buffer routines
*
* Copyright (c) 2010-2012 Mark Pulford <[email protected]>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdlib.h>
#include <stdarg.h>
/* Size: Total bytes allocated to *buf
* Length: String length, excluding optional NULL terminator.
* Increment: Allocation increments when resizing the string buffer.
* Dynamic: True if created via strbuf_new()
*/
typedef struct {
char *buf;
int size;
int length;
int increment;
int dynamic;
int reallocs;
int debug;
} strbuf_t;
#ifndef STRBUF_DEFAULT_SIZE
#define STRBUF_DEFAULT_SIZE 1023
#endif
#ifndef STRBUF_DEFAULT_INCREMENT
#define STRBUF_DEFAULT_INCREMENT -2
#endif
/* Initialise */
extern strbuf_t *strbuf_new(int len);
extern void strbuf_init(strbuf_t *s, int len);
extern void strbuf_set_increment(strbuf_t *s, int increment);
/* Release */
extern void strbuf_free(strbuf_t *s);
extern char *strbuf_free_to_string(strbuf_t *s, int *len);
/* Management */
extern void strbuf_resize(strbuf_t *s, int len);
static int strbuf_empty_length(strbuf_t *s);
static int strbuf_length(strbuf_t *s);
static char *strbuf_string(strbuf_t *s, int *len);
static void strbuf_ensure_empty_length(strbuf_t *s, int len);
static char *strbuf_empty_ptr(strbuf_t *s);
static void strbuf_extend_length(strbuf_t *s, int len);
/* Update */
extern void strbuf_append_fmt(strbuf_t *s, int len, const char *fmt, ...);
extern void strbuf_append_fmt_retry(strbuf_t *s, const char *format, ...);
static void strbuf_append_mem(strbuf_t *s, const char *c, int len);
extern void strbuf_append_string(strbuf_t *s, const char *str);
static void strbuf_append_char(strbuf_t *s, const char c);
static void strbuf_ensure_null(strbuf_t *s);
/* Reset string for before use */
static inline void strbuf_reset(strbuf_t *s)
{
s->length = 0;
}
static inline int strbuf_allocated(strbuf_t *s)
{
return s->buf != NULL;
}
/* Return bytes remaining in the string buffer
* Ensure there is space for a NULL terminator. */
static inline int strbuf_empty_length(strbuf_t *s)
{
return s->size - s->length - 1;
}
static inline void strbuf_ensure_empty_length(strbuf_t *s, int len)
{
if (len > strbuf_empty_length(s))
strbuf_resize(s, s->length + len);
}
static inline char *strbuf_empty_ptr(strbuf_t *s)
{
return s->buf + s->length;
}
static inline void strbuf_extend_length(strbuf_t *s, int len)
{
s->length += len;
}
static inline int strbuf_length(strbuf_t *s)
{
return s->length;
}
static inline void strbuf_append_char(strbuf_t *s, const char c)
{
strbuf_ensure_empty_length(s, 1);
s->buf[s->length++] = c;
}
static inline void strbuf_append_char_unsafe(strbuf_t *s, const char c)
{
s->buf[s->length++] = c;
}
static inline void strbuf_append_mem(strbuf_t *s, const char *c, int len)
{
strbuf_ensure_empty_length(s, len);
memcpy(s->buf + s->length, c, len);
s->length += len;
}
static inline void strbuf_append_mem_unsafe(strbuf_t *s, const char *c, int len)
{
memcpy(s->buf + s->length, c, len);
s->length += len;
}
static inline void strbuf_ensure_null(strbuf_t *s)
{
s->buf[s->length] = 0;
}
static inline char *strbuf_string(strbuf_t *s, int *len)
{
if (len)
*len = s->length;
return s->buf;
}
/* vi:ai et sw=4 ts=4:
*/
| 4,349 | 27.064516 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lauxlib.h
|
/*
** $Id: lauxlib.h,v 1.88.1.1 2007/12/27 13:02:25 roberto Exp $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
#ifndef lauxlib_h
#define lauxlib_h
#include <stddef.h>
#include <stdio.h>
#include "lua.h"
#if defined(LUA_COMPAT_GETN)
LUALIB_API int (luaL_getn) (lua_State *L, int t);
LUALIB_API void (luaL_setn) (lua_State *L, int t, int n);
#else
#define luaL_getn(L,i) ((int)lua_objlen(L, i))
#define luaL_setn(L,i,j) ((void)0) /* no op! */
#endif
#if defined(LUA_COMPAT_OPENLIB)
#define luaI_openlib luaL_openlib
#endif
/* extra error code for `luaL_load' */
#define LUA_ERRFILE (LUA_ERRERR+1)
typedef struct luaL_Reg {
const char *name;
lua_CFunction func;
} luaL_Reg;
LUALIB_API void (luaI_openlib) (lua_State *L, const char *libname,
const luaL_Reg *l, int nup);
LUALIB_API void (luaL_register) (lua_State *L, const char *libname,
const luaL_Reg *l);
LUALIB_API int (luaL_getmetafield) (lua_State *L, int obj, const char *e);
LUALIB_API int (luaL_callmeta) (lua_State *L, int obj, const char *e);
LUALIB_API int (luaL_typerror) (lua_State *L, int narg, const char *tname);
LUALIB_API int (luaL_argerror) (lua_State *L, int numarg, const char *extramsg);
LUALIB_API const char *(luaL_checklstring) (lua_State *L, int numArg,
size_t *l);
LUALIB_API const char *(luaL_optlstring) (lua_State *L, int numArg,
const char *def, size_t *l);
LUALIB_API lua_Number (luaL_checknumber) (lua_State *L, int numArg);
LUALIB_API lua_Number (luaL_optnumber) (lua_State *L, int nArg, lua_Number def);
LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int numArg);
LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int nArg,
lua_Integer def);
LUALIB_API void (luaL_checkstack) (lua_State *L, int sz, const char *msg);
LUALIB_API void (luaL_checktype) (lua_State *L, int narg, int t);
LUALIB_API void (luaL_checkany) (lua_State *L, int narg);
LUALIB_API int (luaL_newmetatable) (lua_State *L, const char *tname);
LUALIB_API void *(luaL_checkudata) (lua_State *L, int ud, const char *tname);
LUALIB_API void (luaL_where) (lua_State *L, int lvl);
LUALIB_API int (luaL_error) (lua_State *L, const char *fmt, ...);
LUALIB_API int (luaL_checkoption) (lua_State *L, int narg, const char *def,
const char *const lst[]);
LUALIB_API int (luaL_ref) (lua_State *L, int t);
LUALIB_API void (luaL_unref) (lua_State *L, int t, int ref);
LUALIB_API int (luaL_loadfile) (lua_State *L, const char *filename);
LUALIB_API int (luaL_loadbuffer) (lua_State *L, const char *buff, size_t sz,
const char *name);
LUALIB_API int (luaL_loadstring) (lua_State *L, const char *s);
LUALIB_API lua_State *(luaL_newstate) (void);
LUALIB_API const char *(luaL_gsub) (lua_State *L, const char *s, const char *p,
const char *r);
LUALIB_API const char *(luaL_findtable) (lua_State *L, int idx,
const char *fname, int szhint);
/*
** ===============================================================
** some useful macros
** ===============================================================
*/
#define luaL_argcheck(L, cond,numarg,extramsg) \
((void)((cond) || luaL_argerror(L, (numarg), (extramsg))))
#define luaL_checkstring(L,n) (luaL_checklstring(L, (n), NULL))
#define luaL_optstring(L,n,d) (luaL_optlstring(L, (n), (d), NULL))
#define luaL_checkint(L,n) ((int)luaL_checkinteger(L, (n)))
#define luaL_optint(L,n,d) ((int)luaL_optinteger(L, (n), (d)))
#define luaL_checklong(L,n) ((long)luaL_checkinteger(L, (n)))
#define luaL_optlong(L,n,d) ((long)luaL_optinteger(L, (n), (d)))
#define luaL_typename(L,i) lua_typename(L, lua_type(L,(i)))
#define luaL_dofile(L, fn) \
(luaL_loadfile(L, fn) || lua_pcall(L, 0, LUA_MULTRET, 0))
#define luaL_dostring(L, s) \
(luaL_loadstring(L, s) || lua_pcall(L, 0, LUA_MULTRET, 0))
#define luaL_getmetatable(L,n) (lua_getfield(L, LUA_REGISTRYINDEX, (n)))
#define luaL_opt(L,f,n,d) (lua_isnoneornil(L,(n)) ? (d) : f(L,(n)))
/*
** {======================================================
** Generic Buffer manipulation
** =======================================================
*/
typedef struct luaL_Buffer {
char *p; /* current position in buffer */
int lvl; /* number of strings in the stack (level) */
lua_State *L;
char buffer[LUAL_BUFFERSIZE];
} luaL_Buffer;
#define luaL_addchar(B,c) \
((void)((B)->p < ((B)->buffer+LUAL_BUFFERSIZE) || luaL_prepbuffer(B)), \
(*(B)->p++ = (char)(c)))
/* compatibility only */
#define luaL_putchar(B,c) luaL_addchar(B,c)
#define luaL_addsize(B,n) ((B)->p += (n))
LUALIB_API void (luaL_buffinit) (lua_State *L, luaL_Buffer *B);
LUALIB_API char *(luaL_prepbuffer) (luaL_Buffer *B);
LUALIB_API void (luaL_addlstring) (luaL_Buffer *B, const char *s, size_t l);
LUALIB_API void (luaL_addstring) (luaL_Buffer *B, const char *s);
LUALIB_API void (luaL_addvalue) (luaL_Buffer *B);
LUALIB_API void (luaL_pushresult) (luaL_Buffer *B);
/* }====================================================== */
/* compatibility with ref system */
/* pre-defined references */
#define LUA_NOREF (-2)
#define LUA_REFNIL (-1)
#define lua_ref(L,lock) ((lock) ? luaL_ref(L, LUA_REGISTRYINDEX) : \
(lua_pushstring(L, "unlocked references are obsolete"), lua_error(L), 0))
#define lua_unref(L,ref) luaL_unref(L, LUA_REGISTRYINDEX, (ref))
#define lua_getref(L,ref) lua_rawgeti(L, LUA_REGISTRYINDEX, (ref))
#define luaL_reg luaL_Reg
#endif
| 5,777 | 32.017143 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lapi.h
|
/*
** $Id: lapi.h,v 2.2.1.1 2007/12/27 13:02:25 roberto Exp $
** Auxiliary functions from Lua API
** See Copyright Notice in lua.h
*/
#ifndef lapi_h
#define lapi_h
#include "lobject.h"
LUAI_FUNC void luaA_pushobject (lua_State *L, const TValue *o);
#endif
| 262 | 14.470588 | 63 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lzio.h
|
/*
** $Id: lzio.h,v 1.21.1.1 2007/12/27 13:02:25 roberto Exp $
** Buffered streams
** See Copyright Notice in lua.h
*/
#ifndef lzio_h
#define lzio_h
#include "lua.h"
#include "lmem.h"
#define EOZ (-1) /* end of stream */
typedef struct Zio ZIO;
#define char2int(c) cast(int, cast(unsigned char, (c)))
#define zgetc(z) (((z)->n--)>0 ? char2int(*(z)->p++) : luaZ_fill(z))
typedef struct Mbuffer {
char *buffer;
size_t n;
size_t buffsize;
} Mbuffer;
#define luaZ_initbuffer(L, buff) ((buff)->buffer = NULL, (buff)->buffsize = 0)
#define luaZ_buffer(buff) ((buff)->buffer)
#define luaZ_sizebuffer(buff) ((buff)->buffsize)
#define luaZ_bufflen(buff) ((buff)->n)
#define luaZ_resetbuffer(buff) ((buff)->n = 0)
#define luaZ_resizebuffer(L, buff, size) \
(luaM_reallocvector(L, (buff)->buffer, (buff)->buffsize, size, char), \
(buff)->buffsize = size)
#define luaZ_freebuffer(L, buff) luaZ_resizebuffer(L, buff, 0)
LUAI_FUNC char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n);
LUAI_FUNC void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader,
void *data);
LUAI_FUNC size_t luaZ_read (ZIO* z, void* b, size_t n); /* read next n bytes */
LUAI_FUNC int luaZ_lookahead (ZIO *z);
/* --------- Private Part ------------------ */
struct Zio {
size_t n; /* bytes still unread */
const char *p; /* current position in buffer */
lua_Reader reader;
void* data; /* additional data */
lua_State *L; /* Lua state (for reader) */
};
LUAI_FUNC int luaZ_fill (ZIO *z);
#endif
| 1,556 | 21.897059 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lparser.h
|
/*
** $Id: lparser.h,v 1.57.1.1 2007/12/27 13:02:25 roberto Exp $
** Lua Parser
** See Copyright Notice in lua.h
*/
#ifndef lparser_h
#define lparser_h
#include "llimits.h"
#include "lobject.h"
#include "lzio.h"
/*
** Expression descriptor
*/
typedef enum {
VVOID, /* no value */
VNIL,
VTRUE,
VFALSE,
VK, /* info = index of constant in `k' */
VKNUM, /* nval = numerical value */
VLOCAL, /* info = local register */
VUPVAL, /* info = index of upvalue in `upvalues' */
VGLOBAL, /* info = index of table; aux = index of global name in `k' */
VINDEXED, /* info = table register; aux = index register (or `k') */
VJMP, /* info = instruction pc */
VRELOCABLE, /* info = instruction pc */
VNONRELOC, /* info = result register */
VCALL, /* info = instruction pc */
VVARARG /* info = instruction pc */
} expkind;
typedef struct expdesc {
expkind k;
union {
struct { int info, aux; } s;
lua_Number nval;
} u;
int t; /* patch list of `exit when true' */
int f; /* patch list of `exit when false' */
} expdesc;
typedef struct upvaldesc {
lu_byte k;
lu_byte info;
} upvaldesc;
struct BlockCnt; /* defined in lparser.c */
/* state needed to generate code for a given function */
typedef struct FuncState {
Proto *f; /* current function header */
Table *h; /* table to find (and reuse) elements in `k' */
struct FuncState *prev; /* enclosing function */
struct LexState *ls; /* lexical state */
struct lua_State *L; /* copy of the Lua state */
struct BlockCnt *bl; /* chain of current blocks */
int pc; /* next position to code (equivalent to `ncode') */
int lasttarget; /* `pc' of last `jump target' */
int jpc; /* list of pending jumps to `pc' */
int freereg; /* first free register */
int nk; /* number of elements in `k' */
int np; /* number of elements in `p' */
short nlocvars; /* number of elements in `locvars' */
lu_byte nactvar; /* number of active local variables */
upvaldesc upvalues[LUAI_MAXUPVALUES]; /* upvalues */
unsigned short actvar[LUAI_MAXVARS]; /* declared-variable stack */
} FuncState;
LUAI_FUNC Proto *luaY_parser (lua_State *L, ZIO *z, Mbuffer *buff,
const char *name);
#endif
| 2,261 | 26.253012 | 73 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/fpconv.h
|
/* Lua CJSON floating point conversion routines */
/* Buffer required to store the largest string representation of a double.
*
* Longest double printed with %.14g is 21 characters long:
* -1.7976931348623e+308 */
# define FPCONV_G_FMT_BUFSIZE 32
#ifdef USE_INTERNAL_FPCONV
static inline void fpconv_init()
{
/* Do nothing - not required */
}
#else
extern void fpconv_init();
#endif
extern int fpconv_g_fmt(char*, double, int);
extern double fpconv_strtod(const char*, char**);
/* vi:ai et sw=4 ts=4:
*/
| 518 | 21.565217 | 74 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lundump.h
|
/*
** $Id: lundump.h,v 1.37.1.1 2007/12/27 13:02:25 roberto Exp $
** load precompiled Lua chunks
** See Copyright Notice in lua.h
*/
#ifndef lundump_h
#define lundump_h
#include "lobject.h"
#include "lzio.h"
/* load one chunk; from lundump.c */
LUAI_FUNC Proto* luaU_undump (lua_State* L, ZIO* Z, Mbuffer* buff, const char* name);
/* make header; from lundump.c */
LUAI_FUNC void luaU_header (char* h);
/* dump one chunk; from ldump.c */
LUAI_FUNC int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip);
#ifdef luac_c
/* print one chunk; from print.c */
LUAI_FUNC void luaU_print (const Proto* f, int full);
#endif
/* for header of binary files -- this is Lua 5.1 */
#define LUAC_VERSION 0x51
/* for header of binary files -- this is the official format */
#define LUAC_FORMAT 0
/* size of header of binary files */
#define LUAC_HEADERSIZE 12
#endif
| 890 | 23.081081 | 92 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lua.h
|
/*
** $Id: lua.h,v 1.218.1.7 2012/01/13 20:36:20 roberto Exp $
** Lua - An Extensible Extension Language
** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
** See Copyright Notice at the end of this file
*/
#ifndef lua_h
#define lua_h
#include <stdarg.h>
#include <stddef.h>
#include "luaconf.h"
#define LUA_VERSION "Lua 5.1"
#define LUA_RELEASE "Lua 5.1.5"
#define LUA_VERSION_NUM 501
#define LUA_COPYRIGHT "Copyright (C) 1994-2012 Lua.org, PUC-Rio"
#define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo & W. Celes"
/* mark for precompiled code (`<esc>Lua') */
#define LUA_SIGNATURE "\033Lua"
/* option for multiple returns in `lua_pcall' and `lua_call' */
#define LUA_MULTRET (-1)
/*
** pseudo-indices
*/
#define LUA_REGISTRYINDEX (-10000)
#define LUA_ENVIRONINDEX (-10001)
#define LUA_GLOBALSINDEX (-10002)
#define lua_upvalueindex(i) (LUA_GLOBALSINDEX-(i))
/* thread status; 0 is OK */
#define LUA_YIELD 1
#define LUA_ERRRUN 2
#define LUA_ERRSYNTAX 3
#define LUA_ERRMEM 4
#define LUA_ERRERR 5
typedef struct lua_State lua_State;
typedef int (*lua_CFunction) (lua_State *L);
/*
** functions that read/write blocks when loading/dumping Lua chunks
*/
typedef const char * (*lua_Reader) (lua_State *L, void *ud, size_t *sz);
typedef int (*lua_Writer) (lua_State *L, const void* p, size_t sz, void* ud);
/*
** prototype for memory-allocation functions
*/
typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);
/*
** basic types
*/
#define LUA_TNONE (-1)
#define LUA_TNIL 0
#define LUA_TBOOLEAN 1
#define LUA_TLIGHTUSERDATA 2
#define LUA_TNUMBER 3
#define LUA_TSTRING 4
#define LUA_TTABLE 5
#define LUA_TFUNCTION 6
#define LUA_TUSERDATA 7
#define LUA_TTHREAD 8
/* minimum Lua stack available to a C function */
#define LUA_MINSTACK 20
/*
** generic extra include file
*/
#if defined(LUA_USER_H)
#include LUA_USER_H
#endif
/* type of numbers in Lua */
typedef LUA_NUMBER lua_Number;
/* type for integer functions */
typedef LUA_INTEGER lua_Integer;
/*
** state manipulation
*/
LUA_API lua_State *(lua_newstate) (lua_Alloc f, void *ud);
LUA_API void (lua_close) (lua_State *L);
LUA_API lua_State *(lua_newthread) (lua_State *L);
LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf);
/*
** basic stack manipulation
*/
LUA_API int (lua_gettop) (lua_State *L);
LUA_API void (lua_settop) (lua_State *L, int idx);
LUA_API void (lua_pushvalue) (lua_State *L, int idx);
LUA_API void (lua_remove) (lua_State *L, int idx);
LUA_API void (lua_insert) (lua_State *L, int idx);
LUA_API void (lua_replace) (lua_State *L, int idx);
LUA_API int (lua_checkstack) (lua_State *L, int sz);
LUA_API void (lua_xmove) (lua_State *from, lua_State *to, int n);
/*
** access functions (stack -> C)
*/
LUA_API int (lua_isnumber) (lua_State *L, int idx);
LUA_API int (lua_isstring) (lua_State *L, int idx);
LUA_API int (lua_iscfunction) (lua_State *L, int idx);
LUA_API int (lua_isuserdata) (lua_State *L, int idx);
LUA_API int (lua_type) (lua_State *L, int idx);
LUA_API const char *(lua_typename) (lua_State *L, int tp);
LUA_API int (lua_equal) (lua_State *L, int idx1, int idx2);
LUA_API int (lua_rawequal) (lua_State *L, int idx1, int idx2);
LUA_API int (lua_lessthan) (lua_State *L, int idx1, int idx2);
LUA_API lua_Number (lua_tonumber) (lua_State *L, int idx);
LUA_API lua_Integer (lua_tointeger) (lua_State *L, int idx);
LUA_API int (lua_toboolean) (lua_State *L, int idx);
LUA_API const char *(lua_tolstring) (lua_State *L, int idx, size_t *len);
LUA_API size_t (lua_objlen) (lua_State *L, int idx);
LUA_API lua_CFunction (lua_tocfunction) (lua_State *L, int idx);
LUA_API void *(lua_touserdata) (lua_State *L, int idx);
LUA_API lua_State *(lua_tothread) (lua_State *L, int idx);
LUA_API const void *(lua_topointer) (lua_State *L, int idx);
/*
** push functions (C -> stack)
*/
LUA_API void (lua_pushnil) (lua_State *L);
LUA_API void (lua_pushnumber) (lua_State *L, lua_Number n);
LUA_API void (lua_pushinteger) (lua_State *L, lua_Integer n);
LUA_API void (lua_pushlstring) (lua_State *L, const char *s, size_t l);
LUA_API void (lua_pushstring) (lua_State *L, const char *s);
LUA_API const char *(lua_pushvfstring) (lua_State *L, const char *fmt,
va_list argp);
LUA_API const char *(lua_pushfstring) (lua_State *L, const char *fmt, ...);
LUA_API void (lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n);
LUA_API void (lua_pushboolean) (lua_State *L, int b);
LUA_API void (lua_pushlightuserdata) (lua_State *L, void *p);
LUA_API int (lua_pushthread) (lua_State *L);
/*
** get functions (Lua -> stack)
*/
LUA_API void (lua_gettable) (lua_State *L, int idx);
LUA_API void (lua_getfield) (lua_State *L, int idx, const char *k);
LUA_API void (lua_rawget) (lua_State *L, int idx);
LUA_API void (lua_rawgeti) (lua_State *L, int idx, int n);
LUA_API void (lua_createtable) (lua_State *L, int narr, int nrec);
LUA_API void *(lua_newuserdata) (lua_State *L, size_t sz);
LUA_API int (lua_getmetatable) (lua_State *L, int objindex);
LUA_API void (lua_getfenv) (lua_State *L, int idx);
/*
** set functions (stack -> Lua)
*/
LUA_API void (lua_settable) (lua_State *L, int idx);
LUA_API void (lua_setfield) (lua_State *L, int idx, const char *k);
LUA_API void (lua_rawset) (lua_State *L, int idx);
LUA_API void (lua_rawseti) (lua_State *L, int idx, int n);
LUA_API int (lua_setmetatable) (lua_State *L, int objindex);
LUA_API int (lua_setfenv) (lua_State *L, int idx);
/*
** `load' and `call' functions (load and run Lua code)
*/
LUA_API void (lua_call) (lua_State *L, int nargs, int nresults);
LUA_API int (lua_pcall) (lua_State *L, int nargs, int nresults, int errfunc);
LUA_API int (lua_cpcall) (lua_State *L, lua_CFunction func, void *ud);
LUA_API int (lua_load) (lua_State *L, lua_Reader reader, void *dt,
const char *chunkname);
LUA_API int (lua_dump) (lua_State *L, lua_Writer writer, void *data);
/*
** coroutine functions
*/
LUA_API int (lua_yield) (lua_State *L, int nresults);
LUA_API int (lua_resume) (lua_State *L, int narg);
LUA_API int (lua_status) (lua_State *L);
/*
** garbage-collection function and options
*/
#define LUA_GCSTOP 0
#define LUA_GCRESTART 1
#define LUA_GCCOLLECT 2
#define LUA_GCCOUNT 3
#define LUA_GCCOUNTB 4
#define LUA_GCSTEP 5
#define LUA_GCSETPAUSE 6
#define LUA_GCSETSTEPMUL 7
LUA_API int (lua_gc) (lua_State *L, int what, int data);
/*
** miscellaneous functions
*/
LUA_API int (lua_error) (lua_State *L);
LUA_API int (lua_next) (lua_State *L, int idx);
LUA_API void (lua_concat) (lua_State *L, int n);
LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud);
LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);
/*
** ===============================================================
** some useful macros
** ===============================================================
*/
#define lua_pop(L,n) lua_settop(L, -(n)-1)
#define lua_newtable(L) lua_createtable(L, 0, 0)
#define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n)))
#define lua_pushcfunction(L,f) lua_pushcclosure(L, (f), 0)
#define lua_strlen(L,i) lua_objlen(L, (i))
#define lua_isfunction(L,n) (lua_type(L, (n)) == LUA_TFUNCTION)
#define lua_istable(L,n) (lua_type(L, (n)) == LUA_TTABLE)
#define lua_islightuserdata(L,n) (lua_type(L, (n)) == LUA_TLIGHTUSERDATA)
#define lua_isnil(L,n) (lua_type(L, (n)) == LUA_TNIL)
#define lua_isboolean(L,n) (lua_type(L, (n)) == LUA_TBOOLEAN)
#define lua_isthread(L,n) (lua_type(L, (n)) == LUA_TTHREAD)
#define lua_isnone(L,n) (lua_type(L, (n)) == LUA_TNONE)
#define lua_isnoneornil(L, n) (lua_type(L, (n)) <= 0)
#define lua_pushliteral(L, s) \
lua_pushlstring(L, "" s, (sizeof(s)/sizeof(char))-1)
#define lua_setglobal(L,s) lua_setfield(L, LUA_GLOBALSINDEX, (s))
#define lua_getglobal(L,s) lua_getfield(L, LUA_GLOBALSINDEX, (s))
#define lua_tostring(L,i) lua_tolstring(L, (i), NULL)
/*
** compatibility macros and functions
*/
#define lua_open() luaL_newstate()
#define lua_getregistry(L) lua_pushvalue(L, LUA_REGISTRYINDEX)
#define lua_getgccount(L) lua_gc(L, LUA_GCCOUNT, 0)
#define lua_Chunkreader lua_Reader
#define lua_Chunkwriter lua_Writer
/* hack */
LUA_API void lua_setlevel (lua_State *from, lua_State *to);
/*
** {======================================================================
** Debug API
** =======================================================================
*/
/*
** Event codes
*/
#define LUA_HOOKCALL 0
#define LUA_HOOKRET 1
#define LUA_HOOKLINE 2
#define LUA_HOOKCOUNT 3
#define LUA_HOOKTAILRET 4
/*
** Event masks
*/
#define LUA_MASKCALL (1 << LUA_HOOKCALL)
#define LUA_MASKRET (1 << LUA_HOOKRET)
#define LUA_MASKLINE (1 << LUA_HOOKLINE)
#define LUA_MASKCOUNT (1 << LUA_HOOKCOUNT)
typedef struct lua_Debug lua_Debug; /* activation record */
/* Functions to be called by the debuger in specific events */
typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar);
LUA_API int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar);
LUA_API const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n);
LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n);
LUA_API const char *lua_getupvalue (lua_State *L, int funcindex, int n);
LUA_API const char *lua_setupvalue (lua_State *L, int funcindex, int n);
LUA_API int lua_sethook (lua_State *L, lua_Hook func, int mask, int count);
LUA_API lua_Hook lua_gethook (lua_State *L);
LUA_API int lua_gethookmask (lua_State *L);
LUA_API int lua_gethookcount (lua_State *L);
struct lua_Debug {
int event;
const char *name; /* (n) */
const char *namewhat; /* (n) `global', `local', `field', `method' */
const char *what; /* (S) `Lua', `C', `main', `tail' */
const char *source; /* (S) */
int currentline; /* (l) */
int nups; /* (u) number of upvalues */
int linedefined; /* (S) */
int lastlinedefined; /* (S) */
char short_src[LUA_IDSIZE]; /* (S) */
/* private part */
int i_ci; /* active function */
};
/* }====================================================================== */
/******************************************************************************
* Copyright (C) 1994-2012 Lua.org, PUC-Rio. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
******************************************************************************/
#endif
| 11,688 | 29.048843 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/ldebug.h
|
/*
** $Id: ldebug.h,v 2.3.1.1 2007/12/27 13:02:25 roberto Exp $
** Auxiliary functions from Debug Interface module
** See Copyright Notice in lua.h
*/
#ifndef ldebug_h
#define ldebug_h
#include "lstate.h"
#define pcRel(pc, p) (cast(int, (pc) - (p)->code) - 1)
#define getline(f,pc) (((f)->lineinfo) ? (f)->lineinfo[pc] : 0)
#define resethookcount(L) (L->hookcount = L->basehookcount)
LUAI_FUNC void luaG_typeerror (lua_State *L, const TValue *o,
const char *opname);
LUAI_FUNC void luaG_concaterror (lua_State *L, StkId p1, StkId p2);
LUAI_FUNC void luaG_aritherror (lua_State *L, const TValue *p1,
const TValue *p2);
LUAI_FUNC int luaG_ordererror (lua_State *L, const TValue *p1,
const TValue *p2);
LUAI_FUNC void luaG_runerror (lua_State *L, const char *fmt, ...);
LUAI_FUNC void luaG_errormsg (lua_State *L);
LUAI_FUNC int luaG_checkcode (const Proto *pt);
LUAI_FUNC int luaG_checkopenop (Instruction i);
#endif
| 1,061 | 30.235294 | 67 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lvm.h
|
/*
** $Id: lvm.h,v 2.5.1.1 2007/12/27 13:02:25 roberto Exp $
** Lua virtual machine
** See Copyright Notice in lua.h
*/
#ifndef lvm_h
#define lvm_h
#include "ldo.h"
#include "lobject.h"
#include "ltm.h"
#define tostring(L,o) ((ttype(o) == LUA_TSTRING) || (luaV_tostring(L, o)))
#define tonumber(o,n) (ttype(o) == LUA_TNUMBER || \
(((o) = luaV_tonumber(o,n)) != NULL))
#define equalobj(L,o1,o2) \
(ttype(o1) == ttype(o2) && luaV_equalval(L, o1, o2))
LUAI_FUNC int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r);
LUAI_FUNC int luaV_equalval (lua_State *L, const TValue *t1, const TValue *t2);
LUAI_FUNC const TValue *luaV_tonumber (const TValue *obj, TValue *n);
LUAI_FUNC int luaV_tostring (lua_State *L, StkId obj);
LUAI_FUNC void luaV_gettable (lua_State *L, const TValue *t, TValue *key,
StkId val);
LUAI_FUNC void luaV_settable (lua_State *L, const TValue *t, TValue *key,
StkId val);
LUAI_FUNC void luaV_execute (lua_State *L, int nexeccalls);
LUAI_FUNC void luaV_concat (lua_State *L, int total, int last);
#endif
| 1,159 | 30.351351 | 79 |
h
|
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NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/src/lstring.h
|
/*
** $Id: lstring.h,v 1.43.1.1 2007/12/27 13:02:25 roberto Exp $
** String table (keep all strings handled by Lua)
** See Copyright Notice in lua.h
*/
#ifndef lstring_h
#define lstring_h
#include "lgc.h"
#include "lobject.h"
#include "lstate.h"
#define sizestring(s) (sizeof(union TString)+((s)->len+1)*sizeof(char))
#define sizeudata(u) (sizeof(union Udata)+(u)->len)
#define luaS_new(L, s) (luaS_newlstr(L, s, strlen(s)))
#define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \
(sizeof(s)/sizeof(char))-1))
#define luaS_fix(s) l_setbit((s)->tsv.marked, FIXEDBIT)
LUAI_FUNC void luaS_resize (lua_State *L, int newsize);
LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s, Table *e);
LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l);
#endif
| 814 | 24.46875 | 74 |
h
|
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NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/etc/lua.hpp
|
// lua.hpp
// Lua header files for C++
// <<extern "C">> not supplied automatically because Lua also compiles as C++
extern "C" {
#include "lua.h"
#include "lualib.h"
#include "lauxlib.h"
}
| 191 | 18.2 | 77 |
hpp
|
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NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/doc/lua.html
|
<!-- $Id: lua.man,v 1.11 2006/01/06 16:03:34 lhf Exp $ -->
<HTML>
<HEAD>
<TITLE>LUA man page</TITLE>
<LINK REL="stylesheet" TYPE="text/css" HREF="lua.css">
</HEAD>
<BODY BGCOLOR="#FFFFFF">
<H2>NAME</H2>
lua - Lua interpreter
<H2>SYNOPSIS</H2>
<B>lua</B>
[
<I>options</I>
]
[
<I>script</I>
[
<I>args</I>
]
]
<H2>DESCRIPTION</H2>
<B>lua</B>
is the stand-alone Lua interpreter.
It loads and executes Lua programs,
either in textual source form or
in precompiled binary form.
(Precompiled binaries are output by
<B>luac</B>,
the Lua compiler.)
<B>lua</B>
can be used as a batch interpreter and also interactively.
<P>
The given
<I>options</I>
(see below)
are executed and then
the Lua program in file
<I>script</I>
is loaded and executed.
The given
<I>args</I>
are available to
<I>script</I>
as strings in a global table named
<B>arg</B>.
If these arguments contain spaces or other characters special to the shell,
then they should be quoted
(but note that the quotes will be removed by the shell).
The arguments in
<B>arg</B>
start at 0,
which contains the string
'<I>script</I>'.
The index of the last argument is stored in
<B>arg.n</B>.
The arguments given in the command line before
<I>script</I>,
including the name of the interpreter,
are available in negative indices in
<B>arg</B>.
<P>
At the very start,
before even handling the command line,
<B>lua</B>
executes the contents of the environment variable
<B>LUA_INIT</B>,
if it is defined.
If the value of
<B>LUA_INIT</B>
is of the form
'@<I>filename</I>',
then
<I>filename</I>
is executed.
Otherwise, the string is assumed to be a Lua statement and is executed.
<P>
Options start with
<B>'-'</B>
and are described below.
You can use
<B>'--'</B>
to signal the end of options.
<P>
If no arguments are given,
then
<B>"-v -i"</B>
is assumed when the standard input is a terminal;
otherwise,
<B>"-"</B>
is assumed.
<P>
In interactive mode,
<B>lua</B>
prompts the user,
reads lines from the standard input,
and executes them as they are read.
If a line does not contain a complete statement,
then a secondary prompt is displayed and
lines are read until a complete statement is formed or
a syntax error is found.
So, one way to interrupt the reading of an incomplete statement is
to force a syntax error:
adding a
<B>';'</B>
in the middle of a statement is a sure way of forcing a syntax error
(except inside multiline strings and comments; these must be closed explicitly).
If a line starts with
<B>'='</B>,
then
<B>lua</B>
displays the values of all the expressions in the remainder of the
line. The expressions must be separated by commas.
The primary prompt is the value of the global variable
<B>_PROMPT</B>,
if this value is a string;
otherwise, the default prompt is used.
Similarly, the secondary prompt is the value of the global variable
<B>_PROMPT2</B>.
So,
to change the prompts,
set the corresponding variable to a string of your choice.
You can do that after calling the interpreter
or on the command line
(but in this case you have to be careful with quotes
if the prompt string contains a space; otherwise you may confuse the shell.)
The default prompts are "> " and ">> ".
<H2>OPTIONS</H2>
<P>
<B>-</B>
load and execute the standard input as a file,
that is,
not interactively,
even when the standard input is a terminal.
<P>
<B>-e </B><I>stat</I>
execute statement
<I>stat</I>.
You need to quote
<I>stat </I>
if it contains spaces, quotes,
or other characters special to the shell.
<P>
<B>-i</B>
enter interactive mode after
<I>script</I>
is executed.
<P>
<B>-l </B><I>name</I>
call
<B>require</B>('<I>name</I>')
before executing
<I>script</I>.
Typically used to load libraries.
<P>
<B>-v</B>
show version information.
<H2>SEE ALSO</H2>
<B>luac</B>(1)
<BR>
<A HREF="http://www.lua.org/">http://www.lua.org/</A>
<H2>DIAGNOSTICS</H2>
Error messages should be self explanatory.
<H2>AUTHORS</H2>
R. Ierusalimschy,
L. H. de Figueiredo,
and
W. Celes
<!-- EOF -->
</BODY>
</HTML>
| 3,951 | 21.843931 | 80 |
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|
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NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/doc/manual.html
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Lua 5.1 Reference Manual</title>
<link rel="stylesheet" type="text/css" href="lua.css">
<link rel="stylesheet" type="text/css" href="manual.css">
<META HTTP-EQUIV="content-type" CONTENT="text/html; charset=iso-8859-1">
</head>
<body>
<hr>
<h1>
<a href="http://www.lua.org/"><img src="logo.gif" alt="" border="0"></a>
Lua 5.1 Reference Manual
</h1>
by Roberto Ierusalimschy, Luiz Henrique de Figueiredo, Waldemar Celes
<p>
<small>
Copyright © 2006–2012 Lua.org, PUC-Rio.
Freely available under the terms of the
<a href="http://www.lua.org/license.html">Lua license</a>.
</small>
<hr>
<p>
<a href="contents.html#contents">contents</A>
·
<a href="contents.html#index">index</A>
·
<A HREF="http://www.lua.org/manual/">other versions</A>
<!-- ====================================================================== -->
<p>
<!-- $Id: manual.of,v 1.49.1.2 2012/01/13 20:23:26 roberto Exp $ -->
<h1>1 - <a name="1">Introduction</a></h1>
<p>
Lua is an extension programming language designed to support
general procedural programming with data description
facilities.
It also offers good support for object-oriented programming,
functional programming, and data-driven programming.
Lua is intended to be used as a powerful, light-weight
scripting language for any program that needs one.
Lua is implemented as a library, written in <em>clean</em> C
(that is, in the common subset of ANSI C and C++).
<p>
Being an extension language, Lua has no notion of a "main" program:
it only works <em>embedded</em> in a host client,
called the <em>embedding program</em> or simply the <em>host</em>.
This host program can invoke functions to execute a piece of Lua code,
can write and read Lua variables,
and can register C functions to be called by Lua code.
Through the use of C functions, Lua can be augmented to cope with
a wide range of different domains,
thus creating customized programming languages sharing a syntactical framework.
The Lua distribution includes a sample host program called <code>lua</code>,
which uses the Lua library to offer a complete, stand-alone Lua interpreter.
<p>
Lua is free software,
and is provided as usual with no guarantees,
as stated in its license.
The implementation described in this manual is available
at Lua's official web site, <code>www.lua.org</code>.
<p>
Like any other reference manual,
this document is dry in places.
For a discussion of the decisions behind the design of Lua,
see the technical papers available at Lua's web site.
For a detailed introduction to programming in Lua,
see Roberto's book, <em>Programming in Lua (Second Edition)</em>.
<h1>2 - <a name="2">The Language</a></h1>
<p>
This section describes the lexis, the syntax, and the semantics of Lua.
In other words,
this section describes
which tokens are valid,
how they can be combined,
and what their combinations mean.
<p>
The language constructs will be explained using the usual extended BNF notation,
in which
{<em>a</em>} means 0 or more <em>a</em>'s, and
[<em>a</em>] means an optional <em>a</em>.
Non-terminals are shown like non-terminal,
keywords are shown like <b>kword</b>,
and other terminal symbols are shown like `<b>=</b>´.
The complete syntax of Lua can be found in <a href="#8">§8</a>
at the end of this manual.
<h2>2.1 - <a name="2.1">Lexical Conventions</a></h2>
<p>
<em>Names</em>
(also called <em>identifiers</em>)
in Lua can be any string of letters,
digits, and underscores,
not beginning with a digit.
This coincides with the definition of names in most languages.
(The definition of letter depends on the current locale:
any character considered alphabetic by the current locale
can be used in an identifier.)
Identifiers are used to name variables and table fields.
<p>
The following <em>keywords</em> are reserved
and cannot be used as names:
<pre>
and break do else elseif
end false for function if
in local nil not or
repeat return then true until while
</pre>
<p>
Lua is a case-sensitive language:
<code>and</code> is a reserved word, but <code>And</code> and <code>AND</code>
are two different, valid names.
As a convention, names starting with an underscore followed by
uppercase letters (such as <a href="#pdf-_VERSION"><code>_VERSION</code></a>)
are reserved for internal global variables used by Lua.
<p>
The following strings denote other tokens:
<pre>
+ - * / % ^ #
== ~= <= >= < > =
( ) { } [ ]
; : , . .. ...
</pre>
<p>
<em>Literal strings</em>
can be delimited by matching single or double quotes,
and can contain the following C-like escape sequences:
'<code>\a</code>' (bell),
'<code>\b</code>' (backspace),
'<code>\f</code>' (form feed),
'<code>\n</code>' (newline),
'<code>\r</code>' (carriage return),
'<code>\t</code>' (horizontal tab),
'<code>\v</code>' (vertical tab),
'<code>\\</code>' (backslash),
'<code>\"</code>' (quotation mark [double quote]),
and '<code>\'</code>' (apostrophe [single quote]).
Moreover, a backslash followed by a real newline
results in a newline in the string.
A character in a string can also be specified by its numerical value
using the escape sequence <code>\<em>ddd</em></code>,
where <em>ddd</em> is a sequence of up to three decimal digits.
(Note that if a numerical escape is to be followed by a digit,
it must be expressed using exactly three digits.)
Strings in Lua can contain any 8-bit value, including embedded zeros,
which can be specified as '<code>\0</code>'.
<p>
Literal strings can also be defined using a long format
enclosed by <em>long brackets</em>.
We define an <em>opening long bracket of level <em>n</em></em> as an opening
square bracket followed by <em>n</em> equal signs followed by another
opening square bracket.
So, an opening long bracket of level 0 is written as <code>[[</code>,
an opening long bracket of level 1 is written as <code>[=[</code>,
and so on.
A <em>closing long bracket</em> is defined similarly;
for instance, a closing long bracket of level 4 is written as <code>]====]</code>.
A long string starts with an opening long bracket of any level and
ends at the first closing long bracket of the same level.
Literals in this bracketed form can run for several lines,
do not interpret any escape sequences,
and ignore long brackets of any other level.
They can contain anything except a closing bracket of the proper level.
<p>
For convenience,
when the opening long bracket is immediately followed by a newline,
the newline is not included in the string.
As an example, in a system using ASCII
(in which '<code>a</code>' is coded as 97,
newline is coded as 10, and '<code>1</code>' is coded as 49),
the five literal strings below denote the same string:
<pre>
a = 'alo\n123"'
a = "alo\n123\""
a = '\97lo\10\04923"'
a = [[alo
123"]]
a = [==[
alo
123"]==]
</pre>
<p>
A <em>numerical constant</em> can be written with an optional decimal part
and an optional decimal exponent.
Lua also accepts integer hexadecimal constants,
by prefixing them with <code>0x</code>.
Examples of valid numerical constants are
<pre>
3 3.0 3.1416 314.16e-2 0.31416E1 0xff 0x56
</pre>
<p>
A <em>comment</em> starts with a double hyphen (<code>--</code>)
anywhere outside a string.
If the text immediately after <code>--</code> is not an opening long bracket,
the comment is a <em>short comment</em>,
which runs until the end of the line.
Otherwise, it is a <em>long comment</em>,
which runs until the corresponding closing long bracket.
Long comments are frequently used to disable code temporarily.
<h2>2.2 - <a name="2.2">Values and Types</a></h2>
<p>
Lua is a <em>dynamically typed language</em>.
This means that
variables do not have types; only values do.
There are no type definitions in the language.
All values carry their own type.
<p>
All values in Lua are <em>first-class values</em>.
This means that all values can be stored in variables,
passed as arguments to other functions, and returned as results.
<p>
There are eight basic types in Lua:
<em>nil</em>, <em>boolean</em>, <em>number</em>,
<em>string</em>, <em>function</em>, <em>userdata</em>,
<em>thread</em>, and <em>table</em>.
<em>Nil</em> is the type of the value <b>nil</b>,
whose main property is to be different from any other value;
it usually represents the absence of a useful value.
<em>Boolean</em> is the type of the values <b>false</b> and <b>true</b>.
Both <b>nil</b> and <b>false</b> make a condition false;
any other value makes it true.
<em>Number</em> represents real (double-precision floating-point) numbers.
(It is easy to build Lua interpreters that use other
internal representations for numbers,
such as single-precision float or long integers;
see file <code>luaconf.h</code>.)
<em>String</em> represents arrays of characters.
Lua is 8-bit clean:
strings can contain any 8-bit character,
including embedded zeros ('<code>\0</code>') (see <a href="#2.1">§2.1</a>).
<p>
Lua can call (and manipulate) functions written in Lua and
functions written in C
(see <a href="#2.5.8">§2.5.8</a>).
<p>
The type <em>userdata</em> is provided to allow arbitrary C data to
be stored in Lua variables.
This type corresponds to a block of raw memory
and has no pre-defined operations in Lua,
except assignment and identity test.
However, by using <em>metatables</em>,
the programmer can define operations for userdata values
(see <a href="#2.8">§2.8</a>).
Userdata values cannot be created or modified in Lua,
only through the C API.
This guarantees the integrity of data owned by the host program.
<p>
The type <em>thread</em> represents independent threads of execution
and it is used to implement coroutines (see <a href="#2.11">§2.11</a>).
Do not confuse Lua threads with operating-system threads.
Lua supports coroutines on all systems,
even those that do not support threads.
<p>
The type <em>table</em> implements associative arrays,
that is, arrays that can be indexed not only with numbers,
but with any value (except <b>nil</b>).
Tables can be <em>heterogeneous</em>;
that is, they can contain values of all types (except <b>nil</b>).
Tables are the sole data structuring mechanism in Lua;
they can be used to represent ordinary arrays,
symbol tables, sets, records, graphs, trees, etc.
To represent records, Lua uses the field name as an index.
The language supports this representation by
providing <code>a.name</code> as syntactic sugar for <code>a["name"]</code>.
There are several convenient ways to create tables in Lua
(see <a href="#2.5.7">§2.5.7</a>).
<p>
Like indices,
the value of a table field can be of any type (except <b>nil</b>).
In particular,
because functions are first-class values,
table fields can contain functions.
Thus tables can also carry <em>methods</em> (see <a href="#2.5.9">§2.5.9</a>).
<p>
Tables, functions, threads, and (full) userdata values are <em>objects</em>:
variables do not actually <em>contain</em> these values,
only <em>references</em> to them.
Assignment, parameter passing, and function returns
always manipulate references to such values;
these operations do not imply any kind of copy.
<p>
The library function <a href="#pdf-type"><code>type</code></a> returns a string describing the type
of a given value.
<h3>2.2.1 - <a name="2.2.1">Coercion</a></h3>
<p>
Lua provides automatic conversion between
string and number values at run time.
Any arithmetic operation applied to a string tries to convert
this string to a number, following the usual conversion rules.
Conversely, whenever a number is used where a string is expected,
the number is converted to a string, in a reasonable format.
For complete control over how numbers are converted to strings,
use the <code>format</code> function from the string library
(see <a href="#pdf-string.format"><code>string.format</code></a>).
<h2>2.3 - <a name="2.3">Variables</a></h2>
<p>
Variables are places that store values.
There are three kinds of variables in Lua:
global variables, local variables, and table fields.
<p>
A single name can denote a global variable or a local variable
(or a function's formal parameter,
which is a particular kind of local variable):
<pre>
var ::= Name
</pre><p>
Name denotes identifiers, as defined in <a href="#2.1">§2.1</a>.
<p>
Any variable is assumed to be global unless explicitly declared
as a local (see <a href="#2.4.7">§2.4.7</a>).
Local variables are <em>lexically scoped</em>:
local variables can be freely accessed by functions
defined inside their scope (see <a href="#2.6">§2.6</a>).
<p>
Before the first assignment to a variable, its value is <b>nil</b>.
<p>
Square brackets are used to index a table:
<pre>
var ::= prefixexp `<b>[</b>´ exp `<b>]</b>´
</pre><p>
The meaning of accesses to global variables
and table fields can be changed via metatables.
An access to an indexed variable <code>t[i]</code> is equivalent to
a call <code>gettable_event(t,i)</code>.
(See <a href="#2.8">§2.8</a> for a complete description of the
<code>gettable_event</code> function.
This function is not defined or callable in Lua.
We use it here only for explanatory purposes.)
<p>
The syntax <code>var.Name</code> is just syntactic sugar for
<code>var["Name"]</code>:
<pre>
var ::= prefixexp `<b>.</b>´ Name
</pre>
<p>
All global variables live as fields in ordinary Lua tables,
called <em>environment tables</em> or simply
<em>environments</em> (see <a href="#2.9">§2.9</a>).
Each function has its own reference to an environment,
so that all global variables in this function
will refer to this environment table.
When a function is created,
it inherits the environment from the function that created it.
To get the environment table of a Lua function,
you call <a href="#pdf-getfenv"><code>getfenv</code></a>.
To replace it,
you call <a href="#pdf-setfenv"><code>setfenv</code></a>.
(You can only manipulate the environment of C functions
through the debug library; (see <a href="#5.9">§5.9</a>).)
<p>
An access to a global variable <code>x</code>
is equivalent to <code>_env.x</code>,
which in turn is equivalent to
<pre>
gettable_event(_env, "x")
</pre><p>
where <code>_env</code> is the environment of the running function.
(See <a href="#2.8">§2.8</a> for a complete description of the
<code>gettable_event</code> function.
This function is not defined or callable in Lua.
Similarly, the <code>_env</code> variable is not defined in Lua.
We use them here only for explanatory purposes.)
<h2>2.4 - <a name="2.4">Statements</a></h2>
<p>
Lua supports an almost conventional set of statements,
similar to those in Pascal or C.
This set includes
assignments, control structures, function calls,
and variable declarations.
<h3>2.4.1 - <a name="2.4.1">Chunks</a></h3>
<p>
The unit of execution of Lua is called a <em>chunk</em>.
A chunk is simply a sequence of statements,
which are executed sequentially.
Each statement can be optionally followed by a semicolon:
<pre>
chunk ::= {stat [`<b>;</b>´]}
</pre><p>
There are no empty statements and thus '<code>;;</code>' is not legal.
<p>
Lua handles a chunk as the body of an anonymous function
with a variable number of arguments
(see <a href="#2.5.9">§2.5.9</a>).
As such, chunks can define local variables,
receive arguments, and return values.
<p>
A chunk can be stored in a file or in a string inside the host program.
To execute a chunk,
Lua first pre-compiles the chunk into instructions for a virtual machine,
and then it executes the compiled code
with an interpreter for the virtual machine.
<p>
Chunks can also be pre-compiled into binary form;
see program <code>luac</code> for details.
Programs in source and compiled forms are interchangeable;
Lua automatically detects the file type and acts accordingly.
<h3>2.4.2 - <a name="2.4.2">Blocks</a></h3><p>
A block is a list of statements;
syntactically, a block is the same as a chunk:
<pre>
block ::= chunk
</pre>
<p>
A block can be explicitly delimited to produce a single statement:
<pre>
stat ::= <b>do</b> block <b>end</b>
</pre><p>
Explicit blocks are useful
to control the scope of variable declarations.
Explicit blocks are also sometimes used to
add a <b>return</b> or <b>break</b> statement in the middle
of another block (see <a href="#2.4.4">§2.4.4</a>).
<h3>2.4.3 - <a name="2.4.3">Assignment</a></h3>
<p>
Lua allows multiple assignments.
Therefore, the syntax for assignment
defines a list of variables on the left side
and a list of expressions on the right side.
The elements in both lists are separated by commas:
<pre>
stat ::= varlist `<b>=</b>´ explist
varlist ::= var {`<b>,</b>´ var}
explist ::= exp {`<b>,</b>´ exp}
</pre><p>
Expressions are discussed in <a href="#2.5">§2.5</a>.
<p>
Before the assignment,
the list of values is <em>adjusted</em> to the length of
the list of variables.
If there are more values than needed,
the excess values are thrown away.
If there are fewer values than needed,
the list is extended with as many <b>nil</b>'s as needed.
If the list of expressions ends with a function call,
then all values returned by that call enter the list of values,
before the adjustment
(except when the call is enclosed in parentheses; see <a href="#2.5">§2.5</a>).
<p>
The assignment statement first evaluates all its expressions
and only then are the assignments performed.
Thus the code
<pre>
i = 3
i, a[i] = i+1, 20
</pre><p>
sets <code>a[3]</code> to 20, without affecting <code>a[4]</code>
because the <code>i</code> in <code>a[i]</code> is evaluated (to 3)
before it is assigned 4.
Similarly, the line
<pre>
x, y = y, x
</pre><p>
exchanges the values of <code>x</code> and <code>y</code>,
and
<pre>
x, y, z = y, z, x
</pre><p>
cyclically permutes the values of <code>x</code>, <code>y</code>, and <code>z</code>.
<p>
The meaning of assignments to global variables
and table fields can be changed via metatables.
An assignment to an indexed variable <code>t[i] = val</code> is equivalent to
<code>settable_event(t,i,val)</code>.
(See <a href="#2.8">§2.8</a> for a complete description of the
<code>settable_event</code> function.
This function is not defined or callable in Lua.
We use it here only for explanatory purposes.)
<p>
An assignment to a global variable <code>x = val</code>
is equivalent to the assignment
<code>_env.x = val</code>,
which in turn is equivalent to
<pre>
settable_event(_env, "x", val)
</pre><p>
where <code>_env</code> is the environment of the running function.
(The <code>_env</code> variable is not defined in Lua.
We use it here only for explanatory purposes.)
<h3>2.4.4 - <a name="2.4.4">Control Structures</a></h3><p>
The control structures
<b>if</b>, <b>while</b>, and <b>repeat</b> have the usual meaning and
familiar syntax:
<pre>
stat ::= <b>while</b> exp <b>do</b> block <b>end</b>
stat ::= <b>repeat</b> block <b>until</b> exp
stat ::= <b>if</b> exp <b>then</b> block {<b>elseif</b> exp <b>then</b> block} [<b>else</b> block] <b>end</b>
</pre><p>
Lua also has a <b>for</b> statement, in two flavors (see <a href="#2.4.5">§2.4.5</a>).
<p>
The condition expression of a
control structure can return any value.
Both <b>false</b> and <b>nil</b> are considered false.
All values different from <b>nil</b> and <b>false</b> are considered true
(in particular, the number 0 and the empty string are also true).
<p>
In the <b>repeat</b>–<b>until</b> loop,
the inner block does not end at the <b>until</b> keyword,
but only after the condition.
So, the condition can refer to local variables
declared inside the loop block.
<p>
The <b>return</b> statement is used to return values
from a function or a chunk (which is just a function).
Functions and chunks can return more than one value,
and so the syntax for the <b>return</b> statement is
<pre>
stat ::= <b>return</b> [explist]
</pre>
<p>
The <b>break</b> statement is used to terminate the execution of a
<b>while</b>, <b>repeat</b>, or <b>for</b> loop,
skipping to the next statement after the loop:
<pre>
stat ::= <b>break</b>
</pre><p>
A <b>break</b> ends the innermost enclosing loop.
<p>
The <b>return</b> and <b>break</b>
statements can only be written as the <em>last</em> statement of a block.
If it is really necessary to <b>return</b> or <b>break</b> in the
middle of a block,
then an explicit inner block can be used,
as in the idioms
<code>do return end</code> and <code>do break end</code>,
because now <b>return</b> and <b>break</b> are the last statements in
their (inner) blocks.
<h3>2.4.5 - <a name="2.4.5">For Statement</a></h3>
<p>
The <b>for</b> statement has two forms:
one numeric and one generic.
<p>
The numeric <b>for</b> loop repeats a block of code while a
control variable runs through an arithmetic progression.
It has the following syntax:
<pre>
stat ::= <b>for</b> Name `<b>=</b>´ exp `<b>,</b>´ exp [`<b>,</b>´ exp] <b>do</b> block <b>end</b>
</pre><p>
The <em>block</em> is repeated for <em>name</em> starting at the value of
the first <em>exp</em>, until it passes the second <em>exp</em> by steps of the
third <em>exp</em>.
More precisely, a <b>for</b> statement like
<pre>
for v = <em>e1</em>, <em>e2</em>, <em>e3</em> do <em>block</em> end
</pre><p>
is equivalent to the code:
<pre>
do
local <em>var</em>, <em>limit</em>, <em>step</em> = tonumber(<em>e1</em>), tonumber(<em>e2</em>), tonumber(<em>e3</em>)
if not (<em>var</em> and <em>limit</em> and <em>step</em>) then error() end
while (<em>step</em> > 0 and <em>var</em> <= <em>limit</em>) or (<em>step</em> <= 0 and <em>var</em> >= <em>limit</em>) do
local v = <em>var</em>
<em>block</em>
<em>var</em> = <em>var</em> + <em>step</em>
end
end
</pre><p>
Note the following:
<ul>
<li>
All three control expressions are evaluated only once,
before the loop starts.
They must all result in numbers.
</li>
<li>
<code><em>var</em></code>, <code><em>limit</em></code>, and <code><em>step</em></code> are invisible variables.
The names shown here are for explanatory purposes only.
</li>
<li>
If the third expression (the step) is absent,
then a step of 1 is used.
</li>
<li>
You can use <b>break</b> to exit a <b>for</b> loop.
</li>
<li>
The loop variable <code>v</code> is local to the loop;
you cannot use its value after the <b>for</b> ends or is broken.
If you need this value,
assign it to another variable before breaking or exiting the loop.
</li>
</ul>
<p>
The generic <b>for</b> statement works over functions,
called <em>iterators</em>.
On each iteration, the iterator function is called to produce a new value,
stopping when this new value is <b>nil</b>.
The generic <b>for</b> loop has the following syntax:
<pre>
stat ::= <b>for</b> namelist <b>in</b> explist <b>do</b> block <b>end</b>
namelist ::= Name {`<b>,</b>´ Name}
</pre><p>
A <b>for</b> statement like
<pre>
for <em>var_1</em>, ···, <em>var_n</em> in <em>explist</em> do <em>block</em> end
</pre><p>
is equivalent to the code:
<pre>
do
local <em>f</em>, <em>s</em>, <em>var</em> = <em>explist</em>
while true do
local <em>var_1</em>, ···, <em>var_n</em> = <em>f</em>(<em>s</em>, <em>var</em>)
<em>var</em> = <em>var_1</em>
if <em>var</em> == nil then break end
<em>block</em>
end
end
</pre><p>
Note the following:
<ul>
<li>
<code><em>explist</em></code> is evaluated only once.
Its results are an <em>iterator</em> function,
a <em>state</em>,
and an initial value for the first <em>iterator variable</em>.
</li>
<li>
<code><em>f</em></code>, <code><em>s</em></code>, and <code><em>var</em></code> are invisible variables.
The names are here for explanatory purposes only.
</li>
<li>
You can use <b>break</b> to exit a <b>for</b> loop.
</li>
<li>
The loop variables <code><em>var_i</em></code> are local to the loop;
you cannot use their values after the <b>for</b> ends.
If you need these values,
then assign them to other variables before breaking or exiting the loop.
</li>
</ul>
<h3>2.4.6 - <a name="2.4.6">Function Calls as Statements</a></h3><p>
To allow possible side-effects,
function calls can be executed as statements:
<pre>
stat ::= functioncall
</pre><p>
In this case, all returned values are thrown away.
Function calls are explained in <a href="#2.5.8">§2.5.8</a>.
<h3>2.4.7 - <a name="2.4.7">Local Declarations</a></h3><p>
Local variables can be declared anywhere inside a block.
The declaration can include an initial assignment:
<pre>
stat ::= <b>local</b> namelist [`<b>=</b>´ explist]
</pre><p>
If present, an initial assignment has the same semantics
of a multiple assignment (see <a href="#2.4.3">§2.4.3</a>).
Otherwise, all variables are initialized with <b>nil</b>.
<p>
A chunk is also a block (see <a href="#2.4.1">§2.4.1</a>),
and so local variables can be declared in a chunk outside any explicit block.
The scope of such local variables extends until the end of the chunk.
<p>
The visibility rules for local variables are explained in <a href="#2.6">§2.6</a>.
<h2>2.5 - <a name="2.5">Expressions</a></h2>
<p>
The basic expressions in Lua are the following:
<pre>
exp ::= prefixexp
exp ::= <b>nil</b> | <b>false</b> | <b>true</b>
exp ::= Number
exp ::= String
exp ::= function
exp ::= tableconstructor
exp ::= `<b>...</b>´
exp ::= exp binop exp
exp ::= unop exp
prefixexp ::= var | functioncall | `<b>(</b>´ exp `<b>)</b>´
</pre>
<p>
Numbers and literal strings are explained in <a href="#2.1">§2.1</a>;
variables are explained in <a href="#2.3">§2.3</a>;
function definitions are explained in <a href="#2.5.9">§2.5.9</a>;
function calls are explained in <a href="#2.5.8">§2.5.8</a>;
table constructors are explained in <a href="#2.5.7">§2.5.7</a>.
Vararg expressions,
denoted by three dots ('<code>...</code>'), can only be used when
directly inside a vararg function;
they are explained in <a href="#2.5.9">§2.5.9</a>.
<p>
Binary operators comprise arithmetic operators (see <a href="#2.5.1">§2.5.1</a>),
relational operators (see <a href="#2.5.2">§2.5.2</a>), logical operators (see <a href="#2.5.3">§2.5.3</a>),
and the concatenation operator (see <a href="#2.5.4">§2.5.4</a>).
Unary operators comprise the unary minus (see <a href="#2.5.1">§2.5.1</a>),
the unary <b>not</b> (see <a href="#2.5.3">§2.5.3</a>),
and the unary <em>length operator</em> (see <a href="#2.5.5">§2.5.5</a>).
<p>
Both function calls and vararg expressions can result in multiple values.
If an expression is used as a statement
(only possible for function calls (see <a href="#2.4.6">§2.4.6</a>)),
then its return list is adjusted to zero elements,
thus discarding all returned values.
If an expression is used as the last (or the only) element
of a list of expressions,
then no adjustment is made
(unless the call is enclosed in parentheses).
In all other contexts,
Lua adjusts the result list to one element,
discarding all values except the first one.
<p>
Here are some examples:
<pre>
f() -- adjusted to 0 results
g(f(), x) -- f() is adjusted to 1 result
g(x, f()) -- g gets x plus all results from f()
a,b,c = f(), x -- f() is adjusted to 1 result (c gets nil)
a,b = ... -- a gets the first vararg parameter, b gets
-- the second (both a and b can get nil if there
-- is no corresponding vararg parameter)
a,b,c = x, f() -- f() is adjusted to 2 results
a,b,c = f() -- f() is adjusted to 3 results
return f() -- returns all results from f()
return ... -- returns all received vararg parameters
return x,y,f() -- returns x, y, and all results from f()
{f()} -- creates a list with all results from f()
{...} -- creates a list with all vararg parameters
{f(), nil} -- f() is adjusted to 1 result
</pre>
<p>
Any expression enclosed in parentheses always results in only one value.
Thus,
<code>(f(x,y,z))</code> is always a single value,
even if <code>f</code> returns several values.
(The value of <code>(f(x,y,z))</code> is the first value returned by <code>f</code>
or <b>nil</b> if <code>f</code> does not return any values.)
<h3>2.5.1 - <a name="2.5.1">Arithmetic Operators</a></h3><p>
Lua supports the usual arithmetic operators:
the binary <code>+</code> (addition),
<code>-</code> (subtraction), <code>*</code> (multiplication),
<code>/</code> (division), <code>%</code> (modulo), and <code>^</code> (exponentiation);
and unary <code>-</code> (negation).
If the operands are numbers, or strings that can be converted to
numbers (see <a href="#2.2.1">§2.2.1</a>),
then all operations have the usual meaning.
Exponentiation works for any exponent.
For instance, <code>x^(-0.5)</code> computes the inverse of the square root of <code>x</code>.
Modulo is defined as
<pre>
a % b == a - math.floor(a/b)*b
</pre><p>
That is, it is the remainder of a division that rounds
the quotient towards minus infinity.
<h3>2.5.2 - <a name="2.5.2">Relational Operators</a></h3><p>
The relational operators in Lua are
<pre>
== ~= < > <= >=
</pre><p>
These operators always result in <b>false</b> or <b>true</b>.
<p>
Equality (<code>==</code>) first compares the type of its operands.
If the types are different, then the result is <b>false</b>.
Otherwise, the values of the operands are compared.
Numbers and strings are compared in the usual way.
Objects (tables, userdata, threads, and functions)
are compared by <em>reference</em>:
two objects are considered equal only if they are the <em>same</em> object.
Every time you create a new object
(a table, userdata, thread, or function),
this new object is different from any previously existing object.
<p>
You can change the way that Lua compares tables and userdata
by using the "eq" metamethod (see <a href="#2.8">§2.8</a>).
<p>
The conversion rules of <a href="#2.2.1">§2.2.1</a>
<em>do not</em> apply to equality comparisons.
Thus, <code>"0"==0</code> evaluates to <b>false</b>,
and <code>t[0]</code> and <code>t["0"]</code> denote different
entries in a table.
<p>
The operator <code>~=</code> is exactly the negation of equality (<code>==</code>).
<p>
The order operators work as follows.
If both arguments are numbers, then they are compared as such.
Otherwise, if both arguments are strings,
then their values are compared according to the current locale.
Otherwise, Lua tries to call the "lt" or the "le"
metamethod (see <a href="#2.8">§2.8</a>).
A comparison <code>a > b</code> is translated to <code>b < a</code>
and <code>a >= b</code> is translated to <code>b <= a</code>.
<h3>2.5.3 - <a name="2.5.3">Logical Operators</a></h3><p>
The logical operators in Lua are
<b>and</b>, <b>or</b>, and <b>not</b>.
Like the control structures (see <a href="#2.4.4">§2.4.4</a>),
all logical operators consider both <b>false</b> and <b>nil</b> as false
and anything else as true.
<p>
The negation operator <b>not</b> always returns <b>false</b> or <b>true</b>.
The conjunction operator <b>and</b> returns its first argument
if this value is <b>false</b> or <b>nil</b>;
otherwise, <b>and</b> returns its second argument.
The disjunction operator <b>or</b> returns its first argument
if this value is different from <b>nil</b> and <b>false</b>;
otherwise, <b>or</b> returns its second argument.
Both <b>and</b> and <b>or</b> use short-cut evaluation;
that is,
the second operand is evaluated only if necessary.
Here are some examples:
<pre>
10 or 20 --> 10
10 or error() --> 10
nil or "a" --> "a"
nil and 10 --> nil
false and error() --> false
false and nil --> false
false or nil --> nil
10 and 20 --> 20
</pre><p>
(In this manual,
<code>--></code> indicates the result of the preceding expression.)
<h3>2.5.4 - <a name="2.5.4">Concatenation</a></h3><p>
The string concatenation operator in Lua is
denoted by two dots ('<code>..</code>').
If both operands are strings or numbers, then they are converted to
strings according to the rules mentioned in <a href="#2.2.1">§2.2.1</a>.
Otherwise, the "concat" metamethod is called (see <a href="#2.8">§2.8</a>).
<h3>2.5.5 - <a name="2.5.5">The Length Operator</a></h3>
<p>
The length operator is denoted by the unary operator <code>#</code>.
The length of a string is its number of bytes
(that is, the usual meaning of string length when each
character is one byte).
<p>
The length of a table <code>t</code> is defined to be any
integer index <code>n</code>
such that <code>t[n]</code> is not <b>nil</b> and <code>t[n+1]</code> is <b>nil</b>;
moreover, if <code>t[1]</code> is <b>nil</b>, <code>n</code> can be zero.
For a regular array, with non-nil values from 1 to a given <code>n</code>,
its length is exactly that <code>n</code>,
the index of its last value.
If the array has "holes"
(that is, <b>nil</b> values between other non-nil values),
then <code>#t</code> can be any of the indices that
directly precedes a <b>nil</b> value
(that is, it may consider any such <b>nil</b> value as the end of
the array).
<h3>2.5.6 - <a name="2.5.6">Precedence</a></h3><p>
Operator precedence in Lua follows the table below,
from lower to higher priority:
<pre>
or
and
< > <= >= ~= ==
..
+ -
* / %
not # - (unary)
^
</pre><p>
As usual,
you can use parentheses to change the precedences of an expression.
The concatenation ('<code>..</code>') and exponentiation ('<code>^</code>')
operators are right associative.
All other binary operators are left associative.
<h3>2.5.7 - <a name="2.5.7">Table Constructors</a></h3><p>
Table constructors are expressions that create tables.
Every time a constructor is evaluated, a new table is created.
A constructor can be used to create an empty table
or to create a table and initialize some of its fields.
The general syntax for constructors is
<pre>
tableconstructor ::= `<b>{</b>´ [fieldlist] `<b>}</b>´
fieldlist ::= field {fieldsep field} [fieldsep]
field ::= `<b>[</b>´ exp `<b>]</b>´ `<b>=</b>´ exp | Name `<b>=</b>´ exp | exp
fieldsep ::= `<b>,</b>´ | `<b>;</b>´
</pre>
<p>
Each field of the form <code>[exp1] = exp2</code> adds to the new table an entry
with key <code>exp1</code> and value <code>exp2</code>.
A field of the form <code>name = exp</code> is equivalent to
<code>["name"] = exp</code>.
Finally, fields of the form <code>exp</code> are equivalent to
<code>[i] = exp</code>, where <code>i</code> are consecutive numerical integers,
starting with 1.
Fields in the other formats do not affect this counting.
For example,
<pre>
a = { [f(1)] = g; "x", "y"; x = 1, f(x), [30] = 23; 45 }
</pre><p>
is equivalent to
<pre>
do
local t = {}
t[f(1)] = g
t[1] = "x" -- 1st exp
t[2] = "y" -- 2nd exp
t.x = 1 -- t["x"] = 1
t[3] = f(x) -- 3rd exp
t[30] = 23
t[4] = 45 -- 4th exp
a = t
end
</pre>
<p>
If the last field in the list has the form <code>exp</code>
and the expression is a function call or a vararg expression,
then all values returned by this expression enter the list consecutively
(see <a href="#2.5.8">§2.5.8</a>).
To avoid this,
enclose the function call or the vararg expression
in parentheses (see <a href="#2.5">§2.5</a>).
<p>
The field list can have an optional trailing separator,
as a convenience for machine-generated code.
<h3>2.5.8 - <a name="2.5.8">Function Calls</a></h3><p>
A function call in Lua has the following syntax:
<pre>
functioncall ::= prefixexp args
</pre><p>
In a function call,
first prefixexp and args are evaluated.
If the value of prefixexp has type <em>function</em>,
then this function is called
with the given arguments.
Otherwise, the prefixexp "call" metamethod is called,
having as first parameter the value of prefixexp,
followed by the original call arguments
(see <a href="#2.8">§2.8</a>).
<p>
The form
<pre>
functioncall ::= prefixexp `<b>:</b>´ Name args
</pre><p>
can be used to call "methods".
A call <code>v:name(<em>args</em>)</code>
is syntactic sugar for <code>v.name(v,<em>args</em>)</code>,
except that <code>v</code> is evaluated only once.
<p>
Arguments have the following syntax:
<pre>
args ::= `<b>(</b>´ [explist] `<b>)</b>´
args ::= tableconstructor
args ::= String
</pre><p>
All argument expressions are evaluated before the call.
A call of the form <code>f{<em>fields</em>}</code> is
syntactic sugar for <code>f({<em>fields</em>})</code>;
that is, the argument list is a single new table.
A call of the form <code>f'<em>string</em>'</code>
(or <code>f"<em>string</em>"</code> or <code>f[[<em>string</em>]]</code>)
is syntactic sugar for <code>f('<em>string</em>')</code>;
that is, the argument list is a single literal string.
<p>
As an exception to the free-format syntax of Lua,
you cannot put a line break before the '<code>(</code>' in a function call.
This restriction avoids some ambiguities in the language.
If you write
<pre>
a = f
(g).x(a)
</pre><p>
Lua would see that as a single statement, <code>a = f(g).x(a)</code>.
So, if you want two statements, you must add a semi-colon between them.
If you actually want to call <code>f</code>,
you must remove the line break before <code>(g)</code>.
<p>
A call of the form <code>return</code> <em>functioncall</em> is called
a <em>tail call</em>.
Lua implements <em>proper tail calls</em>
(or <em>proper tail recursion</em>):
in a tail call,
the called function reuses the stack entry of the calling function.
Therefore, there is no limit on the number of nested tail calls that
a program can execute.
However, a tail call erases any debug information about the
calling function.
Note that a tail call only happens with a particular syntax,
where the <b>return</b> has one single function call as argument;
this syntax makes the calling function return exactly
the returns of the called function.
So, none of the following examples are tail calls:
<pre>
return (f(x)) -- results adjusted to 1
return 2 * f(x)
return x, f(x) -- additional results
f(x); return -- results discarded
return x or f(x) -- results adjusted to 1
</pre>
<h3>2.5.9 - <a name="2.5.9">Function Definitions</a></h3>
<p>
The syntax for function definition is
<pre>
function ::= <b>function</b> funcbody
funcbody ::= `<b>(</b>´ [parlist] `<b>)</b>´ block <b>end</b>
</pre>
<p>
The following syntactic sugar simplifies function definitions:
<pre>
stat ::= <b>function</b> funcname funcbody
stat ::= <b>local</b> <b>function</b> Name funcbody
funcname ::= Name {`<b>.</b>´ Name} [`<b>:</b>´ Name]
</pre><p>
The statement
<pre>
function f () <em>body</em> end
</pre><p>
translates to
<pre>
f = function () <em>body</em> end
</pre><p>
The statement
<pre>
function t.a.b.c.f () <em>body</em> end
</pre><p>
translates to
<pre>
t.a.b.c.f = function () <em>body</em> end
</pre><p>
The statement
<pre>
local function f () <em>body</em> end
</pre><p>
translates to
<pre>
local f; f = function () <em>body</em> end
</pre><p>
<em>not</em> to
<pre>
local f = function () <em>body</em> end
</pre><p>
(This only makes a difference when the body of the function
contains references to <code>f</code>.)
<p>
A function definition is an executable expression,
whose value has type <em>function</em>.
When Lua pre-compiles a chunk,
all its function bodies are pre-compiled too.
Then, whenever Lua executes the function definition,
the function is <em>instantiated</em> (or <em>closed</em>).
This function instance (or <em>closure</em>)
is the final value of the expression.
Different instances of the same function
can refer to different external local variables
and can have different environment tables.
<p>
Parameters act as local variables that are
initialized with the argument values:
<pre>
parlist ::= namelist [`<b>,</b>´ `<b>...</b>´] | `<b>...</b>´
</pre><p>
When a function is called,
the list of arguments is adjusted to
the length of the list of parameters,
unless the function is a variadic or <em>vararg function</em>,
which is
indicated by three dots ('<code>...</code>') at the end of its parameter list.
A vararg function does not adjust its argument list;
instead, it collects all extra arguments and supplies them
to the function through a <em>vararg expression</em>,
which is also written as three dots.
The value of this expression is a list of all actual extra arguments,
similar to a function with multiple results.
If a vararg expression is used inside another expression
or in the middle of a list of expressions,
then its return list is adjusted to one element.
If the expression is used as the last element of a list of expressions,
then no adjustment is made
(unless that last expression is enclosed in parentheses).
<p>
As an example, consider the following definitions:
<pre>
function f(a, b) end
function g(a, b, ...) end
function r() return 1,2,3 end
</pre><p>
Then, we have the following mapping from arguments to parameters and
to the vararg expression:
<pre>
CALL PARAMETERS
f(3) a=3, b=nil
f(3, 4) a=3, b=4
f(3, 4, 5) a=3, b=4
f(r(), 10) a=1, b=10
f(r()) a=1, b=2
g(3) a=3, b=nil, ... --> (nothing)
g(3, 4) a=3, b=4, ... --> (nothing)
g(3, 4, 5, 8) a=3, b=4, ... --> 5 8
g(5, r()) a=5, b=1, ... --> 2 3
</pre>
<p>
Results are returned using the <b>return</b> statement (see <a href="#2.4.4">§2.4.4</a>).
If control reaches the end of a function
without encountering a <b>return</b> statement,
then the function returns with no results.
<p>
The <em>colon</em> syntax
is used for defining <em>methods</em>,
that is, functions that have an implicit extra parameter <code>self</code>.
Thus, the statement
<pre>
function t.a.b.c:f (<em>params</em>) <em>body</em> end
</pre><p>
is syntactic sugar for
<pre>
t.a.b.c.f = function (self, <em>params</em>) <em>body</em> end
</pre>
<h2>2.6 - <a name="2.6">Visibility Rules</a></h2>
<p>
Lua is a lexically scoped language.
The scope of variables begins at the first statement <em>after</em>
their declaration and lasts until the end of the innermost block that
includes the declaration.
Consider the following example:
<pre>
x = 10 -- global variable
do -- new block
local x = x -- new 'x', with value 10
print(x) --> 10
x = x+1
do -- another block
local x = x+1 -- another 'x'
print(x) --> 12
end
print(x) --> 11
end
print(x) --> 10 (the global one)
</pre>
<p>
Notice that, in a declaration like <code>local x = x</code>,
the new <code>x</code> being declared is not in scope yet,
and so the second <code>x</code> refers to the outside variable.
<p>
Because of the lexical scoping rules,
local variables can be freely accessed by functions
defined inside their scope.
A local variable used by an inner function is called
an <em>upvalue</em>, or <em>external local variable</em>,
inside the inner function.
<p>
Notice that each execution of a <b>local</b> statement
defines new local variables.
Consider the following example:
<pre>
a = {}
local x = 20
for i=1,10 do
local y = 0
a[i] = function () y=y+1; return x+y end
end
</pre><p>
The loop creates ten closures
(that is, ten instances of the anonymous function).
Each of these closures uses a different <code>y</code> variable,
while all of them share the same <code>x</code>.
<h2>2.7 - <a name="2.7">Error Handling</a></h2>
<p>
Because Lua is an embedded extension language,
all Lua actions start from C code in the host program
calling a function from the Lua library (see <a href="#lua_pcall"><code>lua_pcall</code></a>).
Whenever an error occurs during Lua compilation or execution,
control returns to C,
which can take appropriate measures
(such as printing an error message).
<p>
Lua code can explicitly generate an error by calling the
<a href="#pdf-error"><code>error</code></a> function.
If you need to catch errors in Lua,
you can use the <a href="#pdf-pcall"><code>pcall</code></a> function.
<h2>2.8 - <a name="2.8">Metatables</a></h2>
<p>
Every value in Lua can have a <em>metatable</em>.
This <em>metatable</em> is an ordinary Lua table
that defines the behavior of the original value
under certain special operations.
You can change several aspects of the behavior
of operations over a value by setting specific fields in its metatable.
For instance, when a non-numeric value is the operand of an addition,
Lua checks for a function in the field <code>"__add"</code> in its metatable.
If it finds one,
Lua calls this function to perform the addition.
<p>
We call the keys in a metatable <em>events</em>
and the values <em>metamethods</em>.
In the previous example, the event is <code>"add"</code>
and the metamethod is the function that performs the addition.
<p>
You can query the metatable of any value
through the <a href="#pdf-getmetatable"><code>getmetatable</code></a> function.
<p>
You can replace the metatable of tables
through the <a href="#pdf-setmetatable"><code>setmetatable</code></a>
function.
You cannot change the metatable of other types from Lua
(except by using the debug library);
you must use the C API for that.
<p>
Tables and full userdata have individual metatables
(although multiple tables and userdata can share their metatables).
Values of all other types share one single metatable per type;
that is, there is one single metatable for all numbers,
one for all strings, etc.
<p>
A metatable controls how an object behaves in arithmetic operations,
order comparisons, concatenation, length operation, and indexing.
A metatable also can define a function to be called when a userdata
is garbage collected.
For each of these operations Lua associates a specific key
called an <em>event</em>.
When Lua performs one of these operations over a value,
it checks whether this value has a metatable with the corresponding event.
If so, the value associated with that key (the metamethod)
controls how Lua will perform the operation.
<p>
Metatables control the operations listed next.
Each operation is identified by its corresponding name.
The key for each operation is a string with its name prefixed by
two underscores, '<code>__</code>';
for instance, the key for operation "add" is the
string <code>"__add"</code>.
The semantics of these operations is better explained by a Lua function
describing how the interpreter executes the operation.
<p>
The code shown here in Lua is only illustrative;
the real behavior is hard coded in the interpreter
and it is much more efficient than this simulation.
All functions used in these descriptions
(<a href="#pdf-rawget"><code>rawget</code></a>, <a href="#pdf-tonumber"><code>tonumber</code></a>, etc.)
are described in <a href="#5.1">§5.1</a>.
In particular, to retrieve the metamethod of a given object,
we use the expression
<pre>
metatable(obj)[event]
</pre><p>
This should be read as
<pre>
rawget(getmetatable(obj) or {}, event)
</pre><p>
That is, the access to a metamethod does not invoke other metamethods,
and the access to objects with no metatables does not fail
(it simply results in <b>nil</b>).
<ul>
<li><b>"add":</b>
the <code>+</code> operation.
<p>
The function <code>getbinhandler</code> below defines how Lua chooses a handler
for a binary operation.
First, Lua tries the first operand.
If its type does not define a handler for the operation,
then Lua tries the second operand.
<pre>
function getbinhandler (op1, op2, event)
return metatable(op1)[event] or metatable(op2)[event]
end
</pre><p>
By using this function,
the behavior of the <code>op1 + op2</code> is
<pre>
function add_event (op1, op2)
local o1, o2 = tonumber(op1), tonumber(op2)
if o1 and o2 then -- both operands are numeric?
return o1 + o2 -- '+' here is the primitive 'add'
else -- at least one of the operands is not numeric
local h = getbinhandler(op1, op2, "__add")
if h then
-- call the handler with both operands
return (h(op1, op2))
else -- no handler available: default behavior
error(···)
end
end
end
</pre><p>
</li>
<li><b>"sub":</b>
the <code>-</code> operation.
Behavior similar to the "add" operation.
</li>
<li><b>"mul":</b>
the <code>*</code> operation.
Behavior similar to the "add" operation.
</li>
<li><b>"div":</b>
the <code>/</code> operation.
Behavior similar to the "add" operation.
</li>
<li><b>"mod":</b>
the <code>%</code> operation.
Behavior similar to the "add" operation,
with the operation
<code>o1 - floor(o1/o2)*o2</code> as the primitive operation.
</li>
<li><b>"pow":</b>
the <code>^</code> (exponentiation) operation.
Behavior similar to the "add" operation,
with the function <code>pow</code> (from the C math library)
as the primitive operation.
</li>
<li><b>"unm":</b>
the unary <code>-</code> operation.
<pre>
function unm_event (op)
local o = tonumber(op)
if o then -- operand is numeric?
return -o -- '-' here is the primitive 'unm'
else -- the operand is not numeric.
-- Try to get a handler from the operand
local h = metatable(op).__unm
if h then
-- call the handler with the operand
return (h(op))
else -- no handler available: default behavior
error(···)
end
end
end
</pre><p>
</li>
<li><b>"concat":</b>
the <code>..</code> (concatenation) operation.
<pre>
function concat_event (op1, op2)
if (type(op1) == "string" or type(op1) == "number") and
(type(op2) == "string" or type(op2) == "number") then
return op1 .. op2 -- primitive string concatenation
else
local h = getbinhandler(op1, op2, "__concat")
if h then
return (h(op1, op2))
else
error(···)
end
end
end
</pre><p>
</li>
<li><b>"len":</b>
the <code>#</code> operation.
<pre>
function len_event (op)
if type(op) == "string" then
return strlen(op) -- primitive string length
elseif type(op) == "table" then
return #op -- primitive table length
else
local h = metatable(op).__len
if h then
-- call the handler with the operand
return (h(op))
else -- no handler available: default behavior
error(···)
end
end
end
</pre><p>
See <a href="#2.5.5">§2.5.5</a> for a description of the length of a table.
</li>
<li><b>"eq":</b>
the <code>==</code> operation.
The function <code>getcomphandler</code> defines how Lua chooses a metamethod
for comparison operators.
A metamethod only is selected when both objects
being compared have the same type
and the same metamethod for the selected operation.
<pre>
function getcomphandler (op1, op2, event)
if type(op1) ~= type(op2) then return nil end
local mm1 = metatable(op1)[event]
local mm2 = metatable(op2)[event]
if mm1 == mm2 then return mm1 else return nil end
end
</pre><p>
The "eq" event is defined as follows:
<pre>
function eq_event (op1, op2)
if type(op1) ~= type(op2) then -- different types?
return false -- different objects
end
if op1 == op2 then -- primitive equal?
return true -- objects are equal
end
-- try metamethod
local h = getcomphandler(op1, op2, "__eq")
if h then
return (h(op1, op2))
else
return false
end
end
</pre><p>
<code>a ~= b</code> is equivalent to <code>not (a == b)</code>.
</li>
<li><b>"lt":</b>
the <code><</code> operation.
<pre>
function lt_event (op1, op2)
if type(op1) == "number" and type(op2) == "number" then
return op1 < op2 -- numeric comparison
elseif type(op1) == "string" and type(op2) == "string" then
return op1 < op2 -- lexicographic comparison
else
local h = getcomphandler(op1, op2, "__lt")
if h then
return (h(op1, op2))
else
error(···)
end
end
end
</pre><p>
<code>a > b</code> is equivalent to <code>b < a</code>.
</li>
<li><b>"le":</b>
the <code><=</code> operation.
<pre>
function le_event (op1, op2)
if type(op1) == "number" and type(op2) == "number" then
return op1 <= op2 -- numeric comparison
elseif type(op1) == "string" and type(op2) == "string" then
return op1 <= op2 -- lexicographic comparison
else
local h = getcomphandler(op1, op2, "__le")
if h then
return (h(op1, op2))
else
h = getcomphandler(op1, op2, "__lt")
if h then
return not h(op2, op1)
else
error(···)
end
end
end
end
</pre><p>
<code>a >= b</code> is equivalent to <code>b <= a</code>.
Note that, in the absence of a "le" metamethod,
Lua tries the "lt", assuming that <code>a <= b</code> is
equivalent to <code>not (b < a)</code>.
</li>
<li><b>"index":</b>
The indexing access <code>table[key]</code>.
<pre>
function gettable_event (table, key)
local h
if type(table) == "table" then
local v = rawget(table, key)
if v ~= nil then return v end
h = metatable(table).__index
if h == nil then return nil end
else
h = metatable(table).__index
if h == nil then
error(···)
end
end
if type(h) == "function" then
return (h(table, key)) -- call the handler
else return h[key] -- or repeat operation on it
end
end
</pre><p>
</li>
<li><b>"newindex":</b>
The indexing assignment <code>table[key] = value</code>.
<pre>
function settable_event (table, key, value)
local h
if type(table) == "table" then
local v = rawget(table, key)
if v ~= nil then rawset(table, key, value); return end
h = metatable(table).__newindex
if h == nil then rawset(table, key, value); return end
else
h = metatable(table).__newindex
if h == nil then
error(···)
end
end
if type(h) == "function" then
h(table, key,value) -- call the handler
else h[key] = value -- or repeat operation on it
end
end
</pre><p>
</li>
<li><b>"call":</b>
called when Lua calls a value.
<pre>
function function_event (func, ...)
if type(func) == "function" then
return func(...) -- primitive call
else
local h = metatable(func).__call
if h then
return h(func, ...)
else
error(···)
end
end
end
</pre><p>
</li>
</ul>
<h2>2.9 - <a name="2.9">Environments</a></h2>
<p>
Besides metatables,
objects of types thread, function, and userdata
have another table associated with them,
called their <em>environment</em>.
Like metatables, environments are regular tables and
multiple objects can share the same environment.
<p>
Threads are created sharing the environment of the creating thread.
Userdata and C functions are created sharing the environment
of the creating C function.
Non-nested Lua functions
(created by <a href="#pdf-loadfile"><code>loadfile</code></a>, <a href="#pdf-loadstring"><code>loadstring</code></a> or <a href="#pdf-load"><code>load</code></a>)
are created sharing the environment of the creating thread.
Nested Lua functions are created sharing the environment of
the creating Lua function.
<p>
Environments associated with userdata have no meaning for Lua.
It is only a convenience feature for programmers to associate a table to
a userdata.
<p>
Environments associated with threads are called
<em>global environments</em>.
They are used as the default environment for threads and
non-nested Lua functions created by the thread
and can be directly accessed by C code (see <a href="#3.3">§3.3</a>).
<p>
The environment associated with a C function can be directly
accessed by C code (see <a href="#3.3">§3.3</a>).
It is used as the default environment for other C functions
and userdata created by the function.
<p>
Environments associated with Lua functions are used to resolve
all accesses to global variables within the function (see <a href="#2.3">§2.3</a>).
They are used as the default environment for nested Lua functions
created by the function.
<p>
You can change the environment of a Lua function or the
running thread by calling <a href="#pdf-setfenv"><code>setfenv</code></a>.
You can get the environment of a Lua function or the running thread
by calling <a href="#pdf-getfenv"><code>getfenv</code></a>.
To manipulate the environment of other objects
(userdata, C functions, other threads) you must
use the C API.
<h2>2.10 - <a name="2.10">Garbage Collection</a></h2>
<p>
Lua performs automatic memory management.
This means that
you have to worry neither about allocating memory for new objects
nor about freeing it when the objects are no longer needed.
Lua manages memory automatically by running
a <em>garbage collector</em> from time to time
to collect all <em>dead objects</em>
(that is, objects that are no longer accessible from Lua).
All memory used by Lua is subject to automatic management:
tables, userdata, functions, threads, strings, etc.
<p>
Lua implements an incremental mark-and-sweep collector.
It uses two numbers to control its garbage-collection cycles:
the <em>garbage-collector pause</em> and
the <em>garbage-collector step multiplier</em>.
Both use percentage points as units
(so that a value of 100 means an internal value of 1).
<p>
The garbage-collector pause
controls how long the collector waits before starting a new cycle.
Larger values make the collector less aggressive.
Values smaller than 100 mean the collector will not wait to
start a new cycle.
A value of 200 means that the collector waits for the total memory in use
to double before starting a new cycle.
<p>
The step multiplier
controls the relative speed of the collector relative to
memory allocation.
Larger values make the collector more aggressive but also increase
the size of each incremental step.
Values smaller than 100 make the collector too slow and
can result in the collector never finishing a cycle.
The default, 200, means that the collector runs at "twice"
the speed of memory allocation.
<p>
You can change these numbers by calling <a href="#lua_gc"><code>lua_gc</code></a> in C
or <a href="#pdf-collectgarbage"><code>collectgarbage</code></a> in Lua.
With these functions you can also control
the collector directly (e.g., stop and restart it).
<h3>2.10.1 - <a name="2.10.1">Garbage-Collection Metamethods</a></h3>
<p>
Using the C API,
you can set garbage-collector metamethods for userdata (see <a href="#2.8">§2.8</a>).
These metamethods are also called <em>finalizers</em>.
Finalizers allow you to coordinate Lua's garbage collection
with external resource management
(such as closing files, network or database connections,
or freeing your own memory).
<p>
Garbage userdata with a field <code>__gc</code> in their metatables are not
collected immediately by the garbage collector.
Instead, Lua puts them in a list.
After the collection,
Lua does the equivalent of the following function
for each userdata in that list:
<pre>
function gc_event (udata)
local h = metatable(udata).__gc
if h then
h(udata)
end
end
</pre>
<p>
At the end of each garbage-collection cycle,
the finalizers for userdata are called in <em>reverse</em>
order of their creation,
among those collected in that cycle.
That is, the first finalizer to be called is the one associated
with the userdata created last in the program.
The userdata itself is freed only in the next garbage-collection cycle.
<h3>2.10.2 - <a name="2.10.2">Weak Tables</a></h3>
<p>
A <em>weak table</em> is a table whose elements are
<em>weak references</em>.
A weak reference is ignored by the garbage collector.
In other words,
if the only references to an object are weak references,
then the garbage collector will collect this object.
<p>
A weak table can have weak keys, weak values, or both.
A table with weak keys allows the collection of its keys,
but prevents the collection of its values.
A table with both weak keys and weak values allows the collection of
both keys and values.
In any case, if either the key or the value is collected,
the whole pair is removed from the table.
The weakness of a table is controlled by the
<code>__mode</code> field of its metatable.
If the <code>__mode</code> field is a string containing the character '<code>k</code>',
the keys in the table are weak.
If <code>__mode</code> contains '<code>v</code>',
the values in the table are weak.
<p>
After you use a table as a metatable,
you should not change the value of its <code>__mode</code> field.
Otherwise, the weak behavior of the tables controlled by this
metatable is undefined.
<h2>2.11 - <a name="2.11">Coroutines</a></h2>
<p>
Lua supports coroutines,
also called <em>collaborative multithreading</em>.
A coroutine in Lua represents an independent thread of execution.
Unlike threads in multithread systems, however,
a coroutine only suspends its execution by explicitly calling
a yield function.
<p>
You create a coroutine with a call to <a href="#pdf-coroutine.create"><code>coroutine.create</code></a>.
Its sole argument is a function
that is the main function of the coroutine.
The <code>create</code> function only creates a new coroutine and
returns a handle to it (an object of type <em>thread</em>);
it does not start the coroutine execution.
<p>
When you first call <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a>,
passing as its first argument
a thread returned by <a href="#pdf-coroutine.create"><code>coroutine.create</code></a>,
the coroutine starts its execution,
at the first line of its main function.
Extra arguments passed to <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a> are passed on
to the coroutine main function.
After the coroutine starts running,
it runs until it terminates or <em>yields</em>.
<p>
A coroutine can terminate its execution in two ways:
normally, when its main function returns
(explicitly or implicitly, after the last instruction);
and abnormally, if there is an unprotected error.
In the first case, <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a> returns <b>true</b>,
plus any values returned by the coroutine main function.
In case of errors, <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a> returns <b>false</b>
plus an error message.
<p>
A coroutine yields by calling <a href="#pdf-coroutine.yield"><code>coroutine.yield</code></a>.
When a coroutine yields,
the corresponding <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a> returns immediately,
even if the yield happens inside nested function calls
(that is, not in the main function,
but in a function directly or indirectly called by the main function).
In the case of a yield, <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a> also returns <b>true</b>,
plus any values passed to <a href="#pdf-coroutine.yield"><code>coroutine.yield</code></a>.
The next time you resume the same coroutine,
it continues its execution from the point where it yielded,
with the call to <a href="#pdf-coroutine.yield"><code>coroutine.yield</code></a> returning any extra
arguments passed to <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a>.
<p>
Like <a href="#pdf-coroutine.create"><code>coroutine.create</code></a>,
the <a href="#pdf-coroutine.wrap"><code>coroutine.wrap</code></a> function also creates a coroutine,
but instead of returning the coroutine itself,
it returns a function that, when called, resumes the coroutine.
Any arguments passed to this function
go as extra arguments to <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a>.
<a href="#pdf-coroutine.wrap"><code>coroutine.wrap</code></a> returns all the values returned by <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a>,
except the first one (the boolean error code).
Unlike <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a>,
<a href="#pdf-coroutine.wrap"><code>coroutine.wrap</code></a> does not catch errors;
any error is propagated to the caller.
<p>
As an example,
consider the following code:
<pre>
function foo (a)
print("foo", a)
return coroutine.yield(2*a)
end
co = coroutine.create(function (a,b)
print("co-body", a, b)
local r = foo(a+1)
print("co-body", r)
local r, s = coroutine.yield(a+b, a-b)
print("co-body", r, s)
return b, "end"
end)
print("main", coroutine.resume(co, 1, 10))
print("main", coroutine.resume(co, "r"))
print("main", coroutine.resume(co, "x", "y"))
print("main", coroutine.resume(co, "x", "y"))
</pre><p>
When you run it, it produces the following output:
<pre>
co-body 1 10
foo 2
main true 4
co-body r
main true 11 -9
co-body x y
main true 10 end
main false cannot resume dead coroutine
</pre>
<h1>3 - <a name="3">The Application Program Interface</a></h1>
<p>
This section describes the C API for Lua, that is,
the set of C functions available to the host program to communicate
with Lua.
All API functions and related types and constants
are declared in the header file <a name="pdf-lua.h"><code>lua.h</code></a>.
<p>
Even when we use the term "function",
any facility in the API may be provided as a macro instead.
All such macros use each of their arguments exactly once
(except for the first argument, which is always a Lua state),
and so do not generate any hidden side-effects.
<p>
As in most C libraries,
the Lua API functions do not check their arguments for validity or consistency.
However, you can change this behavior by compiling Lua
with a proper definition for the macro <a name="pdf-luai_apicheck"><code>luai_apicheck</code></a>,
in file <code>luaconf.h</code>.
<h2>3.1 - <a name="3.1">The Stack</a></h2>
<p>
Lua uses a <em>virtual stack</em> to pass values to and from C.
Each element in this stack represents a Lua value
(<b>nil</b>, number, string, etc.).
<p>
Whenever Lua calls C, the called function gets a new stack,
which is independent of previous stacks and of stacks of
C functions that are still active.
This stack initially contains any arguments to the C function
and it is where the C function pushes its results
to be returned to the caller (see <a href="#lua_CFunction"><code>lua_CFunction</code></a>).
<p>
For convenience,
most query operations in the API do not follow a strict stack discipline.
Instead, they can refer to any element in the stack
by using an <em>index</em>:
A positive index represents an <em>absolute</em> stack position
(starting at 1);
a negative index represents an <em>offset</em> relative to the top of the stack.
More specifically, if the stack has <em>n</em> elements,
then index 1 represents the first element
(that is, the element that was pushed onto the stack first)
and
index <em>n</em> represents the last element;
index -1 also represents the last element
(that is, the element at the top)
and index <em>-n</em> represents the first element.
We say that an index is <em>valid</em>
if it lies between 1 and the stack top
(that is, if <code>1 ≤ abs(index) ≤ top</code>).
<h2>3.2 - <a name="3.2">Stack Size</a></h2>
<p>
When you interact with Lua API,
you are responsible for ensuring consistency.
In particular,
<em>you are responsible for controlling stack overflow</em>.
You can use the function <a href="#lua_checkstack"><code>lua_checkstack</code></a>
to grow the stack size.
<p>
Whenever Lua calls C,
it ensures that at least <a name="pdf-LUA_MINSTACK"><code>LUA_MINSTACK</code></a> stack positions are available.
<code>LUA_MINSTACK</code> is defined as 20,
so that usually you do not have to worry about stack space
unless your code has loops pushing elements onto the stack.
<p>
Most query functions accept as indices any value inside the
available stack space, that is, indices up to the maximum stack size
you have set through <a href="#lua_checkstack"><code>lua_checkstack</code></a>.
Such indices are called <em>acceptable indices</em>.
More formally, we define an <em>acceptable index</em>
as follows:
<pre>
(index < 0 && abs(index) <= top) ||
(index > 0 && index <= stackspace)
</pre><p>
Note that 0 is never an acceptable index.
<h2>3.3 - <a name="3.3">Pseudo-Indices</a></h2>
<p>
Unless otherwise noted,
any function that accepts valid indices can also be called with
<em>pseudo-indices</em>,
which represent some Lua values that are accessible to C code
but which are not in the stack.
Pseudo-indices are used to access the thread environment,
the function environment,
the registry,
and the upvalues of a C function (see <a href="#3.4">§3.4</a>).
<p>
The thread environment (where global variables live) is
always at pseudo-index <a name="pdf-LUA_GLOBALSINDEX"><code>LUA_GLOBALSINDEX</code></a>.
The environment of the running C function is always
at pseudo-index <a name="pdf-LUA_ENVIRONINDEX"><code>LUA_ENVIRONINDEX</code></a>.
<p>
To access and change the value of global variables,
you can use regular table operations over an environment table.
For instance, to access the value of a global variable, do
<pre>
lua_getfield(L, LUA_GLOBALSINDEX, varname);
</pre>
<h2>3.4 - <a name="3.4">C Closures</a></h2>
<p>
When a C function is created,
it is possible to associate some values with it,
thus creating a <em>C closure</em>;
these values are called <em>upvalues</em> and are
accessible to the function whenever it is called
(see <a href="#lua_pushcclosure"><code>lua_pushcclosure</code></a>).
<p>
Whenever a C function is called,
its upvalues are located at specific pseudo-indices.
These pseudo-indices are produced by the macro
<a name="lua_upvalueindex"><code>lua_upvalueindex</code></a>.
The first value associated with a function is at position
<code>lua_upvalueindex(1)</code>, and so on.
Any access to <code>lua_upvalueindex(<em>n</em>)</code>,
where <em>n</em> is greater than the number of upvalues of the
current function (but not greater than 256),
produces an acceptable (but invalid) index.
<h2>3.5 - <a name="3.5">Registry</a></h2>
<p>
Lua provides a <em>registry</em>,
a pre-defined table that can be used by any C code to
store whatever Lua value it needs to store.
This table is always located at pseudo-index
<a name="pdf-LUA_REGISTRYINDEX"><code>LUA_REGISTRYINDEX</code></a>.
Any C library can store data into this table,
but it should take care to choose keys different from those used
by other libraries, to avoid collisions.
Typically, you should use as key a string containing your library name
or a light userdata with the address of a C object in your code.
<p>
The integer keys in the registry are used by the reference mechanism,
implemented by the auxiliary library,
and therefore should not be used for other purposes.
<h2>3.6 - <a name="3.6">Error Handling in C</a></h2>
<p>
Internally, Lua uses the C <code>longjmp</code> facility to handle errors.
(You can also choose to use exceptions if you use C++;
see file <code>luaconf.h</code>.)
When Lua faces any error
(such as memory allocation errors, type errors, syntax errors,
and runtime errors)
it <em>raises</em> an error;
that is, it does a long jump.
A <em>protected environment</em> uses <code>setjmp</code>
to set a recover point;
any error jumps to the most recent active recover point.
<p>
Most functions in the API can throw an error,
for instance due to a memory allocation error.
The documentation for each function indicates whether
it can throw errors.
<p>
Inside a C function you can throw an error by calling <a href="#lua_error"><code>lua_error</code></a>.
<h2>3.7 - <a name="3.7">Functions and Types</a></h2>
<p>
Here we list all functions and types from the C API in
alphabetical order.
Each function has an indicator like this:
<span class="apii">[-o, +p, <em>x</em>]</span>
<p>
The first field, <code>o</code>,
is how many elements the function pops from the stack.
The second field, <code>p</code>,
is how many elements the function pushes onto the stack.
(Any function always pushes its results after popping its arguments.)
A field in the form <code>x|y</code> means the function can push (or pop)
<code>x</code> or <code>y</code> elements,
depending on the situation;
an interrogation mark '<code>?</code>' means that
we cannot know how many elements the function pops/pushes
by looking only at its arguments
(e.g., they may depend on what is on the stack).
The third field, <code>x</code>,
tells whether the function may throw errors:
'<code>-</code>' means the function never throws any error;
'<code>m</code>' means the function may throw an error
only due to not enough memory;
'<code>e</code>' means the function may throw other kinds of errors;
'<code>v</code>' means the function may throw an error on purpose.
<hr><h3><a name="lua_Alloc"><code>lua_Alloc</code></a></h3>
<pre>typedef void * (*lua_Alloc) (void *ud,
void *ptr,
size_t osize,
size_t nsize);</pre>
<p>
The type of the memory-allocation function used by Lua states.
The allocator function must provide a
functionality similar to <code>realloc</code>,
but not exactly the same.
Its arguments are
<code>ud</code>, an opaque pointer passed to <a href="#lua_newstate"><code>lua_newstate</code></a>;
<code>ptr</code>, a pointer to the block being allocated/reallocated/freed;
<code>osize</code>, the original size of the block;
<code>nsize</code>, the new size of the block.
<code>ptr</code> is <code>NULL</code> if and only if <code>osize</code> is zero.
When <code>nsize</code> is zero, the allocator must return <code>NULL</code>;
if <code>osize</code> is not zero,
it should free the block pointed to by <code>ptr</code>.
When <code>nsize</code> is not zero, the allocator returns <code>NULL</code>
if and only if it cannot fill the request.
When <code>nsize</code> is not zero and <code>osize</code> is zero,
the allocator should behave like <code>malloc</code>.
When <code>nsize</code> and <code>osize</code> are not zero,
the allocator behaves like <code>realloc</code>.
Lua assumes that the allocator never fails when
<code>osize >= nsize</code>.
<p>
Here is a simple implementation for the allocator function.
It is used in the auxiliary library by <a href="#luaL_newstate"><code>luaL_newstate</code></a>.
<pre>
static void *l_alloc (void *ud, void *ptr, size_t osize,
size_t nsize) {
(void)ud; (void)osize; /* not used */
if (nsize == 0) {
free(ptr);
return NULL;
}
else
return realloc(ptr, nsize);
}
</pre><p>
This code assumes
that <code>free(NULL)</code> has no effect and that
<code>realloc(NULL, size)</code> is equivalent to <code>malloc(size)</code>.
ANSI C ensures both behaviors.
<hr><h3><a name="lua_atpanic"><code>lua_atpanic</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>lua_CFunction lua_atpanic (lua_State *L, lua_CFunction panicf);</pre>
<p>
Sets a new panic function and returns the old one.
<p>
If an error happens outside any protected environment,
Lua calls a <em>panic function</em>
and then calls <code>exit(EXIT_FAILURE)</code>,
thus exiting the host application.
Your panic function can avoid this exit by
never returning (e.g., doing a long jump).
<p>
The panic function can access the error message at the top of the stack.
<hr><h3><a name="lua_call"><code>lua_call</code></a></h3><p>
<span class="apii">[-(nargs + 1), +nresults, <em>e</em>]</span>
<pre>void lua_call (lua_State *L, int nargs, int nresults);</pre>
<p>
Calls a function.
<p>
To call a function you must use the following protocol:
first, the function to be called is pushed onto the stack;
then, the arguments to the function are pushed
in direct order;
that is, the first argument is pushed first.
Finally you call <a href="#lua_call"><code>lua_call</code></a>;
<code>nargs</code> is the number of arguments that you pushed onto the stack.
All arguments and the function value are popped from the stack
when the function is called.
The function results are pushed onto the stack when the function returns.
The number of results is adjusted to <code>nresults</code>,
unless <code>nresults</code> is <a name="pdf-LUA_MULTRET"><code>LUA_MULTRET</code></a>.
In this case, <em>all</em> results from the function are pushed.
Lua takes care that the returned values fit into the stack space.
The function results are pushed onto the stack in direct order
(the first result is pushed first),
so that after the call the last result is on the top of the stack.
<p>
Any error inside the called function is propagated upwards
(with a <code>longjmp</code>).
<p>
The following example shows how the host program can do the
equivalent to this Lua code:
<pre>
a = f("how", t.x, 14)
</pre><p>
Here it is in C:
<pre>
lua_getfield(L, LUA_GLOBALSINDEX, "f"); /* function to be called */
lua_pushstring(L, "how"); /* 1st argument */
lua_getfield(L, LUA_GLOBALSINDEX, "t"); /* table to be indexed */
lua_getfield(L, -1, "x"); /* push result of t.x (2nd arg) */
lua_remove(L, -2); /* remove 't' from the stack */
lua_pushinteger(L, 14); /* 3rd argument */
lua_call(L, 3, 1); /* call 'f' with 3 arguments and 1 result */
lua_setfield(L, LUA_GLOBALSINDEX, "a"); /* set global 'a' */
</pre><p>
Note that the code above is "balanced":
at its end, the stack is back to its original configuration.
This is considered good programming practice.
<hr><h3><a name="lua_CFunction"><code>lua_CFunction</code></a></h3>
<pre>typedef int (*lua_CFunction) (lua_State *L);</pre>
<p>
Type for C functions.
<p>
In order to communicate properly with Lua,
a C function must use the following protocol,
which defines the way parameters and results are passed:
a C function receives its arguments from Lua in its stack
in direct order (the first argument is pushed first).
So, when the function starts,
<code>lua_gettop(L)</code> returns the number of arguments received by the function.
The first argument (if any) is at index 1
and its last argument is at index <code>lua_gettop(L)</code>.
To return values to Lua, a C function just pushes them onto the stack,
in direct order (the first result is pushed first),
and returns the number of results.
Any other value in the stack below the results will be properly
discarded by Lua.
Like a Lua function, a C function called by Lua can also return
many results.
<p>
As an example, the following function receives a variable number
of numerical arguments and returns their average and sum:
<pre>
static int foo (lua_State *L) {
int n = lua_gettop(L); /* number of arguments */
lua_Number sum = 0;
int i;
for (i = 1; i <= n; i++) {
if (!lua_isnumber(L, i)) {
lua_pushstring(L, "incorrect argument");
lua_error(L);
}
sum += lua_tonumber(L, i);
}
lua_pushnumber(L, sum/n); /* first result */
lua_pushnumber(L, sum); /* second result */
return 2; /* number of results */
}
</pre>
<hr><h3><a name="lua_checkstack"><code>lua_checkstack</code></a></h3><p>
<span class="apii">[-0, +0, <em>m</em>]</span>
<pre>int lua_checkstack (lua_State *L, int extra);</pre>
<p>
Ensures that there are at least <code>extra</code> free stack slots in the stack.
It returns false if it cannot grow the stack to that size.
This function never shrinks the stack;
if the stack is already larger than the new size,
it is left unchanged.
<hr><h3><a name="lua_close"><code>lua_close</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>void lua_close (lua_State *L);</pre>
<p>
Destroys all objects in the given Lua state
(calling the corresponding garbage-collection metamethods, if any)
and frees all dynamic memory used by this state.
On several platforms, you may not need to call this function,
because all resources are naturally released when the host program ends.
On the other hand, long-running programs,
such as a daemon or a web server,
might need to release states as soon as they are not needed,
to avoid growing too large.
<hr><h3><a name="lua_concat"><code>lua_concat</code></a></h3><p>
<span class="apii">[-n, +1, <em>e</em>]</span>
<pre>void lua_concat (lua_State *L, int n);</pre>
<p>
Concatenates the <code>n</code> values at the top of the stack,
pops them, and leaves the result at the top.
If <code>n</code> is 1, the result is the single value on the stack
(that is, the function does nothing);
if <code>n</code> is 0, the result is the empty string.
Concatenation is performed following the usual semantics of Lua
(see <a href="#2.5.4">§2.5.4</a>).
<hr><h3><a name="lua_cpcall"><code>lua_cpcall</code></a></h3><p>
<span class="apii">[-0, +(0|1), <em>-</em>]</span>
<pre>int lua_cpcall (lua_State *L, lua_CFunction func, void *ud);</pre>
<p>
Calls the C function <code>func</code> in protected mode.
<code>func</code> starts with only one element in its stack,
a light userdata containing <code>ud</code>.
In case of errors,
<a href="#lua_cpcall"><code>lua_cpcall</code></a> returns the same error codes as <a href="#lua_pcall"><code>lua_pcall</code></a>,
plus the error object on the top of the stack;
otherwise, it returns zero, and does not change the stack.
All values returned by <code>func</code> are discarded.
<hr><h3><a name="lua_createtable"><code>lua_createtable</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>void lua_createtable (lua_State *L, int narr, int nrec);</pre>
<p>
Creates a new empty table and pushes it onto the stack.
The new table has space pre-allocated
for <code>narr</code> array elements and <code>nrec</code> non-array elements.
This pre-allocation is useful when you know exactly how many elements
the table will have.
Otherwise you can use the function <a href="#lua_newtable"><code>lua_newtable</code></a>.
<hr><h3><a name="lua_dump"><code>lua_dump</code></a></h3><p>
<span class="apii">[-0, +0, <em>m</em>]</span>
<pre>int lua_dump (lua_State *L, lua_Writer writer, void *data);</pre>
<p>
Dumps a function as a binary chunk.
Receives a Lua function on the top of the stack
and produces a binary chunk that,
if loaded again,
results in a function equivalent to the one dumped.
As it produces parts of the chunk,
<a href="#lua_dump"><code>lua_dump</code></a> calls function <code>writer</code> (see <a href="#lua_Writer"><code>lua_Writer</code></a>)
with the given <code>data</code>
to write them.
<p>
The value returned is the error code returned by the last
call to the writer;
0 means no errors.
<p>
This function does not pop the Lua function from the stack.
<hr><h3><a name="lua_equal"><code>lua_equal</code></a></h3><p>
<span class="apii">[-0, +0, <em>e</em>]</span>
<pre>int lua_equal (lua_State *L, int index1, int index2);</pre>
<p>
Returns 1 if the two values in acceptable indices <code>index1</code> and
<code>index2</code> are equal,
following the semantics of the Lua <code>==</code> operator
(that is, may call metamethods).
Otherwise returns 0.
Also returns 0 if any of the indices is non valid.
<hr><h3><a name="lua_error"><code>lua_error</code></a></h3><p>
<span class="apii">[-1, +0, <em>v</em>]</span>
<pre>int lua_error (lua_State *L);</pre>
<p>
Generates a Lua error.
The error message (which can actually be a Lua value of any type)
must be on the stack top.
This function does a long jump,
and therefore never returns.
(see <a href="#luaL_error"><code>luaL_error</code></a>).
<hr><h3><a name="lua_gc"><code>lua_gc</code></a></h3><p>
<span class="apii">[-0, +0, <em>e</em>]</span>
<pre>int lua_gc (lua_State *L, int what, int data);</pre>
<p>
Controls the garbage collector.
<p>
This function performs several tasks,
according to the value of the parameter <code>what</code>:
<ul>
<li><b><code>LUA_GCSTOP</code>:</b>
stops the garbage collector.
</li>
<li><b><code>LUA_GCRESTART</code>:</b>
restarts the garbage collector.
</li>
<li><b><code>LUA_GCCOLLECT</code>:</b>
performs a full garbage-collection cycle.
</li>
<li><b><code>LUA_GCCOUNT</code>:</b>
returns the current amount of memory (in Kbytes) in use by Lua.
</li>
<li><b><code>LUA_GCCOUNTB</code>:</b>
returns the remainder of dividing the current amount of bytes of
memory in use by Lua by 1024.
</li>
<li><b><code>LUA_GCSTEP</code>:</b>
performs an incremental step of garbage collection.
The step "size" is controlled by <code>data</code>
(larger values mean more steps) in a non-specified way.
If you want to control the step size
you must experimentally tune the value of <code>data</code>.
The function returns 1 if the step finished a
garbage-collection cycle.
</li>
<li><b><code>LUA_GCSETPAUSE</code>:</b>
sets <code>data</code> as the new value
for the <em>pause</em> of the collector (see <a href="#2.10">§2.10</a>).
The function returns the previous value of the pause.
</li>
<li><b><code>LUA_GCSETSTEPMUL</code>:</b>
sets <code>data</code> as the new value for the <em>step multiplier</em> of
the collector (see <a href="#2.10">§2.10</a>).
The function returns the previous value of the step multiplier.
</li>
</ul>
<hr><h3><a name="lua_getallocf"><code>lua_getallocf</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>lua_Alloc lua_getallocf (lua_State *L, void **ud);</pre>
<p>
Returns the memory-allocation function of a given state.
If <code>ud</code> is not <code>NULL</code>, Lua stores in <code>*ud</code> the
opaque pointer passed to <a href="#lua_newstate"><code>lua_newstate</code></a>.
<hr><h3><a name="lua_getfenv"><code>lua_getfenv</code></a></h3><p>
<span class="apii">[-0, +1, <em>-</em>]</span>
<pre>void lua_getfenv (lua_State *L, int index);</pre>
<p>
Pushes onto the stack the environment table of
the value at the given index.
<hr><h3><a name="lua_getfield"><code>lua_getfield</code></a></h3><p>
<span class="apii">[-0, +1, <em>e</em>]</span>
<pre>void lua_getfield (lua_State *L, int index, const char *k);</pre>
<p>
Pushes onto the stack the value <code>t[k]</code>,
where <code>t</code> is the value at the given valid index.
As in Lua, this function may trigger a metamethod
for the "index" event (see <a href="#2.8">§2.8</a>).
<hr><h3><a name="lua_getglobal"><code>lua_getglobal</code></a></h3><p>
<span class="apii">[-0, +1, <em>e</em>]</span>
<pre>void lua_getglobal (lua_State *L, const char *name);</pre>
<p>
Pushes onto the stack the value of the global <code>name</code>.
It is defined as a macro:
<pre>
#define lua_getglobal(L,s) lua_getfield(L, LUA_GLOBALSINDEX, s)
</pre>
<hr><h3><a name="lua_getmetatable"><code>lua_getmetatable</code></a></h3><p>
<span class="apii">[-0, +(0|1), <em>-</em>]</span>
<pre>int lua_getmetatable (lua_State *L, int index);</pre>
<p>
Pushes onto the stack the metatable of the value at the given
acceptable index.
If the index is not valid,
or if the value does not have a metatable,
the function returns 0 and pushes nothing on the stack.
<hr><h3><a name="lua_gettable"><code>lua_gettable</code></a></h3><p>
<span class="apii">[-1, +1, <em>e</em>]</span>
<pre>void lua_gettable (lua_State *L, int index);</pre>
<p>
Pushes onto the stack the value <code>t[k]</code>,
where <code>t</code> is the value at the given valid index
and <code>k</code> is the value at the top of the stack.
<p>
This function pops the key from the stack
(putting the resulting value in its place).
As in Lua, this function may trigger a metamethod
for the "index" event (see <a href="#2.8">§2.8</a>).
<hr><h3><a name="lua_gettop"><code>lua_gettop</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_gettop (lua_State *L);</pre>
<p>
Returns the index of the top element in the stack.
Because indices start at 1,
this result is equal to the number of elements in the stack
(and so 0 means an empty stack).
<hr><h3><a name="lua_insert"><code>lua_insert</code></a></h3><p>
<span class="apii">[-1, +1, <em>-</em>]</span>
<pre>void lua_insert (lua_State *L, int index);</pre>
<p>
Moves the top element into the given valid index,
shifting up the elements above this index to open space.
Cannot be called with a pseudo-index,
because a pseudo-index is not an actual stack position.
<hr><h3><a name="lua_Integer"><code>lua_Integer</code></a></h3>
<pre>typedef ptrdiff_t lua_Integer;</pre>
<p>
The type used by the Lua API to represent integral values.
<p>
By default it is a <code>ptrdiff_t</code>,
which is usually the largest signed integral type the machine handles
"comfortably".
<hr><h3><a name="lua_isboolean"><code>lua_isboolean</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_isboolean (lua_State *L, int index);</pre>
<p>
Returns 1 if the value at the given acceptable index has type boolean,
and 0 otherwise.
<hr><h3><a name="lua_iscfunction"><code>lua_iscfunction</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_iscfunction (lua_State *L, int index);</pre>
<p>
Returns 1 if the value at the given acceptable index is a C function,
and 0 otherwise.
<hr><h3><a name="lua_isfunction"><code>lua_isfunction</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_isfunction (lua_State *L, int index);</pre>
<p>
Returns 1 if the value at the given acceptable index is a function
(either C or Lua), and 0 otherwise.
<hr><h3><a name="lua_islightuserdata"><code>lua_islightuserdata</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_islightuserdata (lua_State *L, int index);</pre>
<p>
Returns 1 if the value at the given acceptable index is a light userdata,
and 0 otherwise.
<hr><h3><a name="lua_isnil"><code>lua_isnil</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_isnil (lua_State *L, int index);</pre>
<p>
Returns 1 if the value at the given acceptable index is <b>nil</b>,
and 0 otherwise.
<hr><h3><a name="lua_isnone"><code>lua_isnone</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_isnone (lua_State *L, int index);</pre>
<p>
Returns 1 if the given acceptable index is not valid
(that is, it refers to an element outside the current stack),
and 0 otherwise.
<hr><h3><a name="lua_isnoneornil"><code>lua_isnoneornil</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_isnoneornil (lua_State *L, int index);</pre>
<p>
Returns 1 if the given acceptable index is not valid
(that is, it refers to an element outside the current stack)
or if the value at this index is <b>nil</b>,
and 0 otherwise.
<hr><h3><a name="lua_isnumber"><code>lua_isnumber</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_isnumber (lua_State *L, int index);</pre>
<p>
Returns 1 if the value at the given acceptable index is a number
or a string convertible to a number,
and 0 otherwise.
<hr><h3><a name="lua_isstring"><code>lua_isstring</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_isstring (lua_State *L, int index);</pre>
<p>
Returns 1 if the value at the given acceptable index is a string
or a number (which is always convertible to a string),
and 0 otherwise.
<hr><h3><a name="lua_istable"><code>lua_istable</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_istable (lua_State *L, int index);</pre>
<p>
Returns 1 if the value at the given acceptable index is a table,
and 0 otherwise.
<hr><h3><a name="lua_isthread"><code>lua_isthread</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_isthread (lua_State *L, int index);</pre>
<p>
Returns 1 if the value at the given acceptable index is a thread,
and 0 otherwise.
<hr><h3><a name="lua_isuserdata"><code>lua_isuserdata</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_isuserdata (lua_State *L, int index);</pre>
<p>
Returns 1 if the value at the given acceptable index is a userdata
(either full or light), and 0 otherwise.
<hr><h3><a name="lua_lessthan"><code>lua_lessthan</code></a></h3><p>
<span class="apii">[-0, +0, <em>e</em>]</span>
<pre>int lua_lessthan (lua_State *L, int index1, int index2);</pre>
<p>
Returns 1 if the value at acceptable index <code>index1</code> is smaller
than the value at acceptable index <code>index2</code>,
following the semantics of the Lua <code><</code> operator
(that is, may call metamethods).
Otherwise returns 0.
Also returns 0 if any of the indices is non valid.
<hr><h3><a name="lua_load"><code>lua_load</code></a></h3><p>
<span class="apii">[-0, +1, <em>-</em>]</span>
<pre>int lua_load (lua_State *L,
lua_Reader reader,
void *data,
const char *chunkname);</pre>
<p>
Loads a Lua chunk.
If there are no errors,
<a href="#lua_load"><code>lua_load</code></a> pushes the compiled chunk as a Lua
function on top of the stack.
Otherwise, it pushes an error message.
The return values of <a href="#lua_load"><code>lua_load</code></a> are:
<ul>
<li><b>0:</b> no errors;</li>
<li><b><a name="pdf-LUA_ERRSYNTAX"><code>LUA_ERRSYNTAX</code></a>:</b>
syntax error during pre-compilation;</li>
<li><b><a href="#pdf-LUA_ERRMEM"><code>LUA_ERRMEM</code></a>:</b>
memory allocation error.</li>
</ul>
<p>
This function only loads a chunk;
it does not run it.
<p>
<a href="#lua_load"><code>lua_load</code></a> automatically detects whether the chunk is text or binary,
and loads it accordingly (see program <code>luac</code>).
<p>
The <a href="#lua_load"><code>lua_load</code></a> function uses a user-supplied <code>reader</code> function
to read the chunk (see <a href="#lua_Reader"><code>lua_Reader</code></a>).
The <code>data</code> argument is an opaque value passed to the reader function.
<p>
The <code>chunkname</code> argument gives a name to the chunk,
which is used for error messages and in debug information (see <a href="#3.8">§3.8</a>).
<hr><h3><a name="lua_newstate"><code>lua_newstate</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>lua_State *lua_newstate (lua_Alloc f, void *ud);</pre>
<p>
Creates a new, independent state.
Returns <code>NULL</code> if cannot create the state
(due to lack of memory).
The argument <code>f</code> is the allocator function;
Lua does all memory allocation for this state through this function.
The second argument, <code>ud</code>, is an opaque pointer that Lua
simply passes to the allocator in every call.
<hr><h3><a name="lua_newtable"><code>lua_newtable</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>void lua_newtable (lua_State *L);</pre>
<p>
Creates a new empty table and pushes it onto the stack.
It is equivalent to <code>lua_createtable(L, 0, 0)</code>.
<hr><h3><a name="lua_newthread"><code>lua_newthread</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>lua_State *lua_newthread (lua_State *L);</pre>
<p>
Creates a new thread, pushes it on the stack,
and returns a pointer to a <a href="#lua_State"><code>lua_State</code></a> that represents this new thread.
The new state returned by this function shares with the original state
all global objects (such as tables),
but has an independent execution stack.
<p>
There is no explicit function to close or to destroy a thread.
Threads are subject to garbage collection,
like any Lua object.
<hr><h3><a name="lua_newuserdata"><code>lua_newuserdata</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>void *lua_newuserdata (lua_State *L, size_t size);</pre>
<p>
This function allocates a new block of memory with the given size,
pushes onto the stack a new full userdata with the block address,
and returns this address.
<p>
Userdata represent C values in Lua.
A <em>full userdata</em> represents a block of memory.
It is an object (like a table):
you must create it, it can have its own metatable,
and you can detect when it is being collected.
A full userdata is only equal to itself (under raw equality).
<p>
When Lua collects a full userdata with a <code>gc</code> metamethod,
Lua calls the metamethod and marks the userdata as finalized.
When this userdata is collected again then
Lua frees its corresponding memory.
<hr><h3><a name="lua_next"><code>lua_next</code></a></h3><p>
<span class="apii">[-1, +(2|0), <em>e</em>]</span>
<pre>int lua_next (lua_State *L, int index);</pre>
<p>
Pops a key from the stack,
and pushes a key-value pair from the table at the given index
(the "next" pair after the given key).
If there are no more elements in the table,
then <a href="#lua_next"><code>lua_next</code></a> returns 0 (and pushes nothing).
<p>
A typical traversal looks like this:
<pre>
/* table is in the stack at index 't' */
lua_pushnil(L); /* first key */
while (lua_next(L, t) != 0) {
/* uses 'key' (at index -2) and 'value' (at index -1) */
printf("%s - %s\n",
lua_typename(L, lua_type(L, -2)),
lua_typename(L, lua_type(L, -1)));
/* removes 'value'; keeps 'key' for next iteration */
lua_pop(L, 1);
}
</pre>
<p>
While traversing a table,
do not call <a href="#lua_tolstring"><code>lua_tolstring</code></a> directly on a key,
unless you know that the key is actually a string.
Recall that <a href="#lua_tolstring"><code>lua_tolstring</code></a> <em>changes</em>
the value at the given index;
this confuses the next call to <a href="#lua_next"><code>lua_next</code></a>.
<hr><h3><a name="lua_Number"><code>lua_Number</code></a></h3>
<pre>typedef double lua_Number;</pre>
<p>
The type of numbers in Lua.
By default, it is double, but that can be changed in <code>luaconf.h</code>.
<p>
Through the configuration file you can change
Lua to operate with another type for numbers (e.g., float or long).
<hr><h3><a name="lua_objlen"><code>lua_objlen</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>size_t lua_objlen (lua_State *L, int index);</pre>
<p>
Returns the "length" of the value at the given acceptable index:
for strings, this is the string length;
for tables, this is the result of the length operator ('<code>#</code>');
for userdata, this is the size of the block of memory allocated
for the userdata;
for other values, it is 0.
<hr><h3><a name="lua_pcall"><code>lua_pcall</code></a></h3><p>
<span class="apii">[-(nargs + 1), +(nresults|1), <em>-</em>]</span>
<pre>int lua_pcall (lua_State *L, int nargs, int nresults, int errfunc);</pre>
<p>
Calls a function in protected mode.
<p>
Both <code>nargs</code> and <code>nresults</code> have the same meaning as
in <a href="#lua_call"><code>lua_call</code></a>.
If there are no errors during the call,
<a href="#lua_pcall"><code>lua_pcall</code></a> behaves exactly like <a href="#lua_call"><code>lua_call</code></a>.
However, if there is any error,
<a href="#lua_pcall"><code>lua_pcall</code></a> catches it,
pushes a single value on the stack (the error message),
and returns an error code.
Like <a href="#lua_call"><code>lua_call</code></a>,
<a href="#lua_pcall"><code>lua_pcall</code></a> always removes the function
and its arguments from the stack.
<p>
If <code>errfunc</code> is 0,
then the error message returned on the stack
is exactly the original error message.
Otherwise, <code>errfunc</code> is the stack index of an
<em>error handler function</em>.
(In the current implementation, this index cannot be a pseudo-index.)
In case of runtime errors,
this function will be called with the error message
and its return value will be the message returned on the stack by <a href="#lua_pcall"><code>lua_pcall</code></a>.
<p>
Typically, the error handler function is used to add more debug
information to the error message, such as a stack traceback.
Such information cannot be gathered after the return of <a href="#lua_pcall"><code>lua_pcall</code></a>,
since by then the stack has unwound.
<p>
The <a href="#lua_pcall"><code>lua_pcall</code></a> function returns 0 in case of success
or one of the following error codes
(defined in <code>lua.h</code>):
<ul>
<li><b><a name="pdf-LUA_ERRRUN"><code>LUA_ERRRUN</code></a>:</b>
a runtime error.
</li>
<li><b><a name="pdf-LUA_ERRMEM"><code>LUA_ERRMEM</code></a>:</b>
memory allocation error.
For such errors, Lua does not call the error handler function.
</li>
<li><b><a name="pdf-LUA_ERRERR"><code>LUA_ERRERR</code></a>:</b>
error while running the error handler function.
</li>
</ul>
<hr><h3><a name="lua_pop"><code>lua_pop</code></a></h3><p>
<span class="apii">[-n, +0, <em>-</em>]</span>
<pre>void lua_pop (lua_State *L, int n);</pre>
<p>
Pops <code>n</code> elements from the stack.
<hr><h3><a name="lua_pushboolean"><code>lua_pushboolean</code></a></h3><p>
<span class="apii">[-0, +1, <em>-</em>]</span>
<pre>void lua_pushboolean (lua_State *L, int b);</pre>
<p>
Pushes a boolean value with value <code>b</code> onto the stack.
<hr><h3><a name="lua_pushcclosure"><code>lua_pushcclosure</code></a></h3><p>
<span class="apii">[-n, +1, <em>m</em>]</span>
<pre>void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n);</pre>
<p>
Pushes a new C closure onto the stack.
<p>
When a C function is created,
it is possible to associate some values with it,
thus creating a C closure (see <a href="#3.4">§3.4</a>);
these values are then accessible to the function whenever it is called.
To associate values with a C function,
first these values should be pushed onto the stack
(when there are multiple values, the first value is pushed first).
Then <a href="#lua_pushcclosure"><code>lua_pushcclosure</code></a>
is called to create and push the C function onto the stack,
with the argument <code>n</code> telling how many values should be
associated with the function.
<a href="#lua_pushcclosure"><code>lua_pushcclosure</code></a> also pops these values from the stack.
<p>
The maximum value for <code>n</code> is 255.
<hr><h3><a name="lua_pushcfunction"><code>lua_pushcfunction</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>void lua_pushcfunction (lua_State *L, lua_CFunction f);</pre>
<p>
Pushes a C function onto the stack.
This function receives a pointer to a C function
and pushes onto the stack a Lua value of type <code>function</code> that,
when called, invokes the corresponding C function.
<p>
Any function to be registered in Lua must
follow the correct protocol to receive its parameters
and return its results (see <a href="#lua_CFunction"><code>lua_CFunction</code></a>).
<p>
<code>lua_pushcfunction</code> is defined as a macro:
<pre>
#define lua_pushcfunction(L,f) lua_pushcclosure(L,f,0)
</pre>
<hr><h3><a name="lua_pushfstring"><code>lua_pushfstring</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>const char *lua_pushfstring (lua_State *L, const char *fmt, ...);</pre>
<p>
Pushes onto the stack a formatted string
and returns a pointer to this string.
It is similar to the C function <code>sprintf</code>,
but has some important differences:
<ul>
<li>
You do not have to allocate space for the result:
the result is a Lua string and Lua takes care of memory allocation
(and deallocation, through garbage collection).
</li>
<li>
The conversion specifiers are quite restricted.
There are no flags, widths, or precisions.
The conversion specifiers can only be
'<code>%%</code>' (inserts a '<code>%</code>' in the string),
'<code>%s</code>' (inserts a zero-terminated string, with no size restrictions),
'<code>%f</code>' (inserts a <a href="#lua_Number"><code>lua_Number</code></a>),
'<code>%p</code>' (inserts a pointer as a hexadecimal numeral),
'<code>%d</code>' (inserts an <code>int</code>), and
'<code>%c</code>' (inserts an <code>int</code> as a character).
</li>
</ul>
<hr><h3><a name="lua_pushinteger"><code>lua_pushinteger</code></a></h3><p>
<span class="apii">[-0, +1, <em>-</em>]</span>
<pre>void lua_pushinteger (lua_State *L, lua_Integer n);</pre>
<p>
Pushes a number with value <code>n</code> onto the stack.
<hr><h3><a name="lua_pushlightuserdata"><code>lua_pushlightuserdata</code></a></h3><p>
<span class="apii">[-0, +1, <em>-</em>]</span>
<pre>void lua_pushlightuserdata (lua_State *L, void *p);</pre>
<p>
Pushes a light userdata onto the stack.
<p>
Userdata represent C values in Lua.
A <em>light userdata</em> represents a pointer.
It is a value (like a number):
you do not create it, it has no individual metatable,
and it is not collected (as it was never created).
A light userdata is equal to "any"
light userdata with the same C address.
<hr><h3><a name="lua_pushliteral"><code>lua_pushliteral</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>void lua_pushliteral (lua_State *L, const char *s);</pre>
<p>
This macro is equivalent to <a href="#lua_pushlstring"><code>lua_pushlstring</code></a>,
but can be used only when <code>s</code> is a literal string.
In these cases, it automatically provides the string length.
<hr><h3><a name="lua_pushlstring"><code>lua_pushlstring</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>void lua_pushlstring (lua_State *L, const char *s, size_t len);</pre>
<p>
Pushes the string pointed to by <code>s</code> with size <code>len</code>
onto the stack.
Lua makes (or reuses) an internal copy of the given string,
so the memory at <code>s</code> can be freed or reused immediately after
the function returns.
The string can contain embedded zeros.
<hr><h3><a name="lua_pushnil"><code>lua_pushnil</code></a></h3><p>
<span class="apii">[-0, +1, <em>-</em>]</span>
<pre>void lua_pushnil (lua_State *L);</pre>
<p>
Pushes a nil value onto the stack.
<hr><h3><a name="lua_pushnumber"><code>lua_pushnumber</code></a></h3><p>
<span class="apii">[-0, +1, <em>-</em>]</span>
<pre>void lua_pushnumber (lua_State *L, lua_Number n);</pre>
<p>
Pushes a number with value <code>n</code> onto the stack.
<hr><h3><a name="lua_pushstring"><code>lua_pushstring</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>void lua_pushstring (lua_State *L, const char *s);</pre>
<p>
Pushes the zero-terminated string pointed to by <code>s</code>
onto the stack.
Lua makes (or reuses) an internal copy of the given string,
so the memory at <code>s</code> can be freed or reused immediately after
the function returns.
The string cannot contain embedded zeros;
it is assumed to end at the first zero.
<hr><h3><a name="lua_pushthread"><code>lua_pushthread</code></a></h3><p>
<span class="apii">[-0, +1, <em>-</em>]</span>
<pre>int lua_pushthread (lua_State *L);</pre>
<p>
Pushes the thread represented by <code>L</code> onto the stack.
Returns 1 if this thread is the main thread of its state.
<hr><h3><a name="lua_pushvalue"><code>lua_pushvalue</code></a></h3><p>
<span class="apii">[-0, +1, <em>-</em>]</span>
<pre>void lua_pushvalue (lua_State *L, int index);</pre>
<p>
Pushes a copy of the element at the given valid index
onto the stack.
<hr><h3><a name="lua_pushvfstring"><code>lua_pushvfstring</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>const char *lua_pushvfstring (lua_State *L,
const char *fmt,
va_list argp);</pre>
<p>
Equivalent to <a href="#lua_pushfstring"><code>lua_pushfstring</code></a>, except that it receives a <code>va_list</code>
instead of a variable number of arguments.
<hr><h3><a name="lua_rawequal"><code>lua_rawequal</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_rawequal (lua_State *L, int index1, int index2);</pre>
<p>
Returns 1 if the two values in acceptable indices <code>index1</code> and
<code>index2</code> are primitively equal
(that is, without calling metamethods).
Otherwise returns 0.
Also returns 0 if any of the indices are non valid.
<hr><h3><a name="lua_rawget"><code>lua_rawget</code></a></h3><p>
<span class="apii">[-1, +1, <em>-</em>]</span>
<pre>void lua_rawget (lua_State *L, int index);</pre>
<p>
Similar to <a href="#lua_gettable"><code>lua_gettable</code></a>, but does a raw access
(i.e., without metamethods).
<hr><h3><a name="lua_rawgeti"><code>lua_rawgeti</code></a></h3><p>
<span class="apii">[-0, +1, <em>-</em>]</span>
<pre>void lua_rawgeti (lua_State *L, int index, int n);</pre>
<p>
Pushes onto the stack the value <code>t[n]</code>,
where <code>t</code> is the value at the given valid index.
The access is raw;
that is, it does not invoke metamethods.
<hr><h3><a name="lua_rawset"><code>lua_rawset</code></a></h3><p>
<span class="apii">[-2, +0, <em>m</em>]</span>
<pre>void lua_rawset (lua_State *L, int index);</pre>
<p>
Similar to <a href="#lua_settable"><code>lua_settable</code></a>, but does a raw assignment
(i.e., without metamethods).
<hr><h3><a name="lua_rawseti"><code>lua_rawseti</code></a></h3><p>
<span class="apii">[-1, +0, <em>m</em>]</span>
<pre>void lua_rawseti (lua_State *L, int index, int n);</pre>
<p>
Does the equivalent of <code>t[n] = v</code>,
where <code>t</code> is the value at the given valid index
and <code>v</code> is the value at the top of the stack.
<p>
This function pops the value from the stack.
The assignment is raw;
that is, it does not invoke metamethods.
<hr><h3><a name="lua_Reader"><code>lua_Reader</code></a></h3>
<pre>typedef const char * (*lua_Reader) (lua_State *L,
void *data,
size_t *size);</pre>
<p>
The reader function used by <a href="#lua_load"><code>lua_load</code></a>.
Every time it needs another piece of the chunk,
<a href="#lua_load"><code>lua_load</code></a> calls the reader,
passing along its <code>data</code> parameter.
The reader must return a pointer to a block of memory
with a new piece of the chunk
and set <code>size</code> to the block size.
The block must exist until the reader function is called again.
To signal the end of the chunk,
the reader must return <code>NULL</code> or set <code>size</code> to zero.
The reader function may return pieces of any size greater than zero.
<hr><h3><a name="lua_register"><code>lua_register</code></a></h3><p>
<span class="apii">[-0, +0, <em>e</em>]</span>
<pre>void lua_register (lua_State *L,
const char *name,
lua_CFunction f);</pre>
<p>
Sets the C function <code>f</code> as the new value of global <code>name</code>.
It is defined as a macro:
<pre>
#define lua_register(L,n,f) \
(lua_pushcfunction(L, f), lua_setglobal(L, n))
</pre>
<hr><h3><a name="lua_remove"><code>lua_remove</code></a></h3><p>
<span class="apii">[-1, +0, <em>-</em>]</span>
<pre>void lua_remove (lua_State *L, int index);</pre>
<p>
Removes the element at the given valid index,
shifting down the elements above this index to fill the gap.
Cannot be called with a pseudo-index,
because a pseudo-index is not an actual stack position.
<hr><h3><a name="lua_replace"><code>lua_replace</code></a></h3><p>
<span class="apii">[-1, +0, <em>-</em>]</span>
<pre>void lua_replace (lua_State *L, int index);</pre>
<p>
Moves the top element into the given position (and pops it),
without shifting any element
(therefore replacing the value at the given position).
<hr><h3><a name="lua_resume"><code>lua_resume</code></a></h3><p>
<span class="apii">[-?, +?, <em>-</em>]</span>
<pre>int lua_resume (lua_State *L, int narg);</pre>
<p>
Starts and resumes a coroutine in a given thread.
<p>
To start a coroutine, you first create a new thread
(see <a href="#lua_newthread"><code>lua_newthread</code></a>);
then you push onto its stack the main function plus any arguments;
then you call <a href="#lua_resume"><code>lua_resume</code></a>,
with <code>narg</code> being the number of arguments.
This call returns when the coroutine suspends or finishes its execution.
When it returns, the stack contains all values passed to <a href="#lua_yield"><code>lua_yield</code></a>,
or all values returned by the body function.
<a href="#lua_resume"><code>lua_resume</code></a> returns
<a href="#pdf-LUA_YIELD"><code>LUA_YIELD</code></a> if the coroutine yields,
0 if the coroutine finishes its execution
without errors,
or an error code in case of errors (see <a href="#lua_pcall"><code>lua_pcall</code></a>).
In case of errors,
the stack is not unwound,
so you can use the debug API over it.
The error message is on the top of the stack.
To restart a coroutine, you put on its stack only the values to
be passed as results from <code>yield</code>,
and then call <a href="#lua_resume"><code>lua_resume</code></a>.
<hr><h3><a name="lua_setallocf"><code>lua_setallocf</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);</pre>
<p>
Changes the allocator function of a given state to <code>f</code>
with user data <code>ud</code>.
<hr><h3><a name="lua_setfenv"><code>lua_setfenv</code></a></h3><p>
<span class="apii">[-1, +0, <em>-</em>]</span>
<pre>int lua_setfenv (lua_State *L, int index);</pre>
<p>
Pops a table from the stack and sets it as
the new environment for the value at the given index.
If the value at the given index is
neither a function nor a thread nor a userdata,
<a href="#lua_setfenv"><code>lua_setfenv</code></a> returns 0.
Otherwise it returns 1.
<hr><h3><a name="lua_setfield"><code>lua_setfield</code></a></h3><p>
<span class="apii">[-1, +0, <em>e</em>]</span>
<pre>void lua_setfield (lua_State *L, int index, const char *k);</pre>
<p>
Does the equivalent to <code>t[k] = v</code>,
where <code>t</code> is the value at the given valid index
and <code>v</code> is the value at the top of the stack.
<p>
This function pops the value from the stack.
As in Lua, this function may trigger a metamethod
for the "newindex" event (see <a href="#2.8">§2.8</a>).
<hr><h3><a name="lua_setglobal"><code>lua_setglobal</code></a></h3><p>
<span class="apii">[-1, +0, <em>e</em>]</span>
<pre>void lua_setglobal (lua_State *L, const char *name);</pre>
<p>
Pops a value from the stack and
sets it as the new value of global <code>name</code>.
It is defined as a macro:
<pre>
#define lua_setglobal(L,s) lua_setfield(L, LUA_GLOBALSINDEX, s)
</pre>
<hr><h3><a name="lua_setmetatable"><code>lua_setmetatable</code></a></h3><p>
<span class="apii">[-1, +0, <em>-</em>]</span>
<pre>int lua_setmetatable (lua_State *L, int index);</pre>
<p>
Pops a table from the stack and
sets it as the new metatable for the value at the given
acceptable index.
<hr><h3><a name="lua_settable"><code>lua_settable</code></a></h3><p>
<span class="apii">[-2, +0, <em>e</em>]</span>
<pre>void lua_settable (lua_State *L, int index);</pre>
<p>
Does the equivalent to <code>t[k] = v</code>,
where <code>t</code> is the value at the given valid index,
<code>v</code> is the value at the top of the stack,
and <code>k</code> is the value just below the top.
<p>
This function pops both the key and the value from the stack.
As in Lua, this function may trigger a metamethod
for the "newindex" event (see <a href="#2.8">§2.8</a>).
<hr><h3><a name="lua_settop"><code>lua_settop</code></a></h3><p>
<span class="apii">[-?, +?, <em>-</em>]</span>
<pre>void lua_settop (lua_State *L, int index);</pre>
<p>
Accepts any acceptable index, or 0,
and sets the stack top to this index.
If the new top is larger than the old one,
then the new elements are filled with <b>nil</b>.
If <code>index</code> is 0, then all stack elements are removed.
<hr><h3><a name="lua_State"><code>lua_State</code></a></h3>
<pre>typedef struct lua_State lua_State;</pre>
<p>
Opaque structure that keeps the whole state of a Lua interpreter.
The Lua library is fully reentrant:
it has no global variables.
All information about a state is kept in this structure.
<p>
A pointer to this state must be passed as the first argument to
every function in the library, except to <a href="#lua_newstate"><code>lua_newstate</code></a>,
which creates a Lua state from scratch.
<hr><h3><a name="lua_status"><code>lua_status</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_status (lua_State *L);</pre>
<p>
Returns the status of the thread <code>L</code>.
<p>
The status can be 0 for a normal thread,
an error code if the thread finished its execution with an error,
or <a name="pdf-LUA_YIELD"><code>LUA_YIELD</code></a> if the thread is suspended.
<hr><h3><a name="lua_toboolean"><code>lua_toboolean</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_toboolean (lua_State *L, int index);</pre>
<p>
Converts the Lua value at the given acceptable index to a C boolean
value (0 or 1).
Like all tests in Lua,
<a href="#lua_toboolean"><code>lua_toboolean</code></a> returns 1 for any Lua value
different from <b>false</b> and <b>nil</b>;
otherwise it returns 0.
It also returns 0 when called with a non-valid index.
(If you want to accept only actual boolean values,
use <a href="#lua_isboolean"><code>lua_isboolean</code></a> to test the value's type.)
<hr><h3><a name="lua_tocfunction"><code>lua_tocfunction</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>lua_CFunction lua_tocfunction (lua_State *L, int index);</pre>
<p>
Converts a value at the given acceptable index to a C function.
That value must be a C function;
otherwise, returns <code>NULL</code>.
<hr><h3><a name="lua_tointeger"><code>lua_tointeger</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>lua_Integer lua_tointeger (lua_State *L, int index);</pre>
<p>
Converts the Lua value at the given acceptable index
to the signed integral type <a href="#lua_Integer"><code>lua_Integer</code></a>.
The Lua value must be a number or a string convertible to a number
(see <a href="#2.2.1">§2.2.1</a>);
otherwise, <a href="#lua_tointeger"><code>lua_tointeger</code></a> returns 0.
<p>
If the number is not an integer,
it is truncated in some non-specified way.
<hr><h3><a name="lua_tolstring"><code>lua_tolstring</code></a></h3><p>
<span class="apii">[-0, +0, <em>m</em>]</span>
<pre>const char *lua_tolstring (lua_State *L, int index, size_t *len);</pre>
<p>
Converts the Lua value at the given acceptable index to a C string.
If <code>len</code> is not <code>NULL</code>,
it also sets <code>*len</code> with the string length.
The Lua value must be a string or a number;
otherwise, the function returns <code>NULL</code>.
If the value is a number,
then <a href="#lua_tolstring"><code>lua_tolstring</code></a> also
<em>changes the actual value in the stack to a string</em>.
(This change confuses <a href="#lua_next"><code>lua_next</code></a>
when <a href="#lua_tolstring"><code>lua_tolstring</code></a> is applied to keys during a table traversal.)
<p>
<a href="#lua_tolstring"><code>lua_tolstring</code></a> returns a fully aligned pointer
to a string inside the Lua state.
This string always has a zero ('<code>\0</code>')
after its last character (as in C),
but can contain other zeros in its body.
Because Lua has garbage collection,
there is no guarantee that the pointer returned by <a href="#lua_tolstring"><code>lua_tolstring</code></a>
will be valid after the corresponding value is removed from the stack.
<hr><h3><a name="lua_tonumber"><code>lua_tonumber</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>lua_Number lua_tonumber (lua_State *L, int index);</pre>
<p>
Converts the Lua value at the given acceptable index
to the C type <a href="#lua_Number"><code>lua_Number</code></a> (see <a href="#lua_Number"><code>lua_Number</code></a>).
The Lua value must be a number or a string convertible to a number
(see <a href="#2.2.1">§2.2.1</a>);
otherwise, <a href="#lua_tonumber"><code>lua_tonumber</code></a> returns 0.
<hr><h3><a name="lua_topointer"><code>lua_topointer</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>const void *lua_topointer (lua_State *L, int index);</pre>
<p>
Converts the value at the given acceptable index to a generic
C pointer (<code>void*</code>).
The value can be a userdata, a table, a thread, or a function;
otherwise, <a href="#lua_topointer"><code>lua_topointer</code></a> returns <code>NULL</code>.
Different objects will give different pointers.
There is no way to convert the pointer back to its original value.
<p>
Typically this function is used only for debug information.
<hr><h3><a name="lua_tostring"><code>lua_tostring</code></a></h3><p>
<span class="apii">[-0, +0, <em>m</em>]</span>
<pre>const char *lua_tostring (lua_State *L, int index);</pre>
<p>
Equivalent to <a href="#lua_tolstring"><code>lua_tolstring</code></a> with <code>len</code> equal to <code>NULL</code>.
<hr><h3><a name="lua_tothread"><code>lua_tothread</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>lua_State *lua_tothread (lua_State *L, int index);</pre>
<p>
Converts the value at the given acceptable index to a Lua thread
(represented as <code>lua_State*</code>).
This value must be a thread;
otherwise, the function returns <code>NULL</code>.
<hr><h3><a name="lua_touserdata"><code>lua_touserdata</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>void *lua_touserdata (lua_State *L, int index);</pre>
<p>
If the value at the given acceptable index is a full userdata,
returns its block address.
If the value is a light userdata,
returns its pointer.
Otherwise, returns <code>NULL</code>.
<hr><h3><a name="lua_type"><code>lua_type</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_type (lua_State *L, int index);</pre>
<p>
Returns the type of the value in the given acceptable index,
or <code>LUA_TNONE</code> for a non-valid index
(that is, an index to an "empty" stack position).
The types returned by <a href="#lua_type"><code>lua_type</code></a> are coded by the following constants
defined in <code>lua.h</code>:
<code>LUA_TNIL</code>,
<code>LUA_TNUMBER</code>,
<code>LUA_TBOOLEAN</code>,
<code>LUA_TSTRING</code>,
<code>LUA_TTABLE</code>,
<code>LUA_TFUNCTION</code>,
<code>LUA_TUSERDATA</code>,
<code>LUA_TTHREAD</code>,
and
<code>LUA_TLIGHTUSERDATA</code>.
<hr><h3><a name="lua_typename"><code>lua_typename</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>const char *lua_typename (lua_State *L, int tp);</pre>
<p>
Returns the name of the type encoded by the value <code>tp</code>,
which must be one the values returned by <a href="#lua_type"><code>lua_type</code></a>.
<hr><h3><a name="lua_Writer"><code>lua_Writer</code></a></h3>
<pre>typedef int (*lua_Writer) (lua_State *L,
const void* p,
size_t sz,
void* ud);</pre>
<p>
The type of the writer function used by <a href="#lua_dump"><code>lua_dump</code></a>.
Every time it produces another piece of chunk,
<a href="#lua_dump"><code>lua_dump</code></a> calls the writer,
passing along the buffer to be written (<code>p</code>),
its size (<code>sz</code>),
and the <code>data</code> parameter supplied to <a href="#lua_dump"><code>lua_dump</code></a>.
<p>
The writer returns an error code:
0 means no errors;
any other value means an error and stops <a href="#lua_dump"><code>lua_dump</code></a> from
calling the writer again.
<hr><h3><a name="lua_xmove"><code>lua_xmove</code></a></h3><p>
<span class="apii">[-?, +?, <em>-</em>]</span>
<pre>void lua_xmove (lua_State *from, lua_State *to, int n);</pre>
<p>
Exchange values between different threads of the <em>same</em> global state.
<p>
This function pops <code>n</code> values from the stack <code>from</code>,
and pushes them onto the stack <code>to</code>.
<hr><h3><a name="lua_yield"><code>lua_yield</code></a></h3><p>
<span class="apii">[-?, +?, <em>-</em>]</span>
<pre>int lua_yield (lua_State *L, int nresults);</pre>
<p>
Yields a coroutine.
<p>
This function should only be called as the
return expression of a C function, as follows:
<pre>
return lua_yield (L, nresults);
</pre><p>
When a C function calls <a href="#lua_yield"><code>lua_yield</code></a> in that way,
the running coroutine suspends its execution,
and the call to <a href="#lua_resume"><code>lua_resume</code></a> that started this coroutine returns.
The parameter <code>nresults</code> is the number of values from the stack
that are passed as results to <a href="#lua_resume"><code>lua_resume</code></a>.
<h2>3.8 - <a name="3.8">The Debug Interface</a></h2>
<p>
Lua has no built-in debugging facilities.
Instead, it offers a special interface
by means of functions and <em>hooks</em>.
This interface allows the construction of different
kinds of debuggers, profilers, and other tools
that need "inside information" from the interpreter.
<hr><h3><a name="lua_Debug"><code>lua_Debug</code></a></h3>
<pre>typedef struct lua_Debug {
int event;
const char *name; /* (n) */
const char *namewhat; /* (n) */
const char *what; /* (S) */
const char *source; /* (S) */
int currentline; /* (l) */
int nups; /* (u) number of upvalues */
int linedefined; /* (S) */
int lastlinedefined; /* (S) */
char short_src[LUA_IDSIZE]; /* (S) */
/* private part */
<em>other fields</em>
} lua_Debug;</pre>
<p>
A structure used to carry different pieces of
information about an active function.
<a href="#lua_getstack"><code>lua_getstack</code></a> fills only the private part
of this structure, for later use.
To fill the other fields of <a href="#lua_Debug"><code>lua_Debug</code></a> with useful information,
call <a href="#lua_getinfo"><code>lua_getinfo</code></a>.
<p>
The fields of <a href="#lua_Debug"><code>lua_Debug</code></a> have the following meaning:
<ul>
<li><b><code>source</code>:</b>
If the function was defined in a string,
then <code>source</code> is that string.
If the function was defined in a file,
then <code>source</code> starts with a '<code>@</code>' followed by the file name.
</li>
<li><b><code>short_src</code>:</b>
a "printable" version of <code>source</code>, to be used in error messages.
</li>
<li><b><code>linedefined</code>:</b>
the line number where the definition of the function starts.
</li>
<li><b><code>lastlinedefined</code>:</b>
the line number where the definition of the function ends.
</li>
<li><b><code>what</code>:</b>
the string <code>"Lua"</code> if the function is a Lua function,
<code>"C"</code> if it is a C function,
<code>"main"</code> if it is the main part of a chunk,
and <code>"tail"</code> if it was a function that did a tail call.
In the latter case,
Lua has no other information about the function.
</li>
<li><b><code>currentline</code>:</b>
the current line where the given function is executing.
When no line information is available,
<code>currentline</code> is set to -1.
</li>
<li><b><code>name</code>:</b>
a reasonable name for the given function.
Because functions in Lua are first-class values,
they do not have a fixed name:
some functions can be the value of multiple global variables,
while others can be stored only in a table field.
The <code>lua_getinfo</code> function checks how the function was
called to find a suitable name.
If it cannot find a name,
then <code>name</code> is set to <code>NULL</code>.
</li>
<li><b><code>namewhat</code>:</b>
explains the <code>name</code> field.
The value of <code>namewhat</code> can be
<code>"global"</code>, <code>"local"</code>, <code>"method"</code>,
<code>"field"</code>, <code>"upvalue"</code>, or <code>""</code> (the empty string),
according to how the function was called.
(Lua uses the empty string when no other option seems to apply.)
</li>
<li><b><code>nups</code>:</b>
the number of upvalues of the function.
</li>
</ul>
<hr><h3><a name="lua_gethook"><code>lua_gethook</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>lua_Hook lua_gethook (lua_State *L);</pre>
<p>
Returns the current hook function.
<hr><h3><a name="lua_gethookcount"><code>lua_gethookcount</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_gethookcount (lua_State *L);</pre>
<p>
Returns the current hook count.
<hr><h3><a name="lua_gethookmask"><code>lua_gethookmask</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_gethookmask (lua_State *L);</pre>
<p>
Returns the current hook mask.
<hr><h3><a name="lua_getinfo"><code>lua_getinfo</code></a></h3><p>
<span class="apii">[-(0|1), +(0|1|2), <em>m</em>]</span>
<pre>int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar);</pre>
<p>
Returns information about a specific function or function invocation.
<p>
To get information about a function invocation,
the parameter <code>ar</code> must be a valid activation record that was
filled by a previous call to <a href="#lua_getstack"><code>lua_getstack</code></a> or
given as argument to a hook (see <a href="#lua_Hook"><code>lua_Hook</code></a>).
<p>
To get information about a function you push it onto the stack
and start the <code>what</code> string with the character '<code>></code>'.
(In that case,
<code>lua_getinfo</code> pops the function in the top of the stack.)
For instance, to know in which line a function <code>f</code> was defined,
you can write the following code:
<pre>
lua_Debug ar;
lua_getfield(L, LUA_GLOBALSINDEX, "f"); /* get global 'f' */
lua_getinfo(L, ">S", &ar);
printf("%d\n", ar.linedefined);
</pre>
<p>
Each character in the string <code>what</code>
selects some fields of the structure <code>ar</code> to be filled or
a value to be pushed on the stack:
<ul>
<li><b>'<code>n</code>':</b> fills in the field <code>name</code> and <code>namewhat</code>;
</li>
<li><b>'<code>S</code>':</b>
fills in the fields <code>source</code>, <code>short_src</code>,
<code>linedefined</code>, <code>lastlinedefined</code>, and <code>what</code>;
</li>
<li><b>'<code>l</code>':</b> fills in the field <code>currentline</code>;
</li>
<li><b>'<code>u</code>':</b> fills in the field <code>nups</code>;
</li>
<li><b>'<code>f</code>':</b>
pushes onto the stack the function that is
running at the given level;
</li>
<li><b>'<code>L</code>':</b>
pushes onto the stack a table whose indices are the
numbers of the lines that are valid on the function.
(A <em>valid line</em> is a line with some associated code,
that is, a line where you can put a break point.
Non-valid lines include empty lines and comments.)
</li>
</ul>
<p>
This function returns 0 on error
(for instance, an invalid option in <code>what</code>).
<hr><h3><a name="lua_getlocal"><code>lua_getlocal</code></a></h3><p>
<span class="apii">[-0, +(0|1), <em>-</em>]</span>
<pre>const char *lua_getlocal (lua_State *L, lua_Debug *ar, int n);</pre>
<p>
Gets information about a local variable of a given activation record.
The parameter <code>ar</code> must be a valid activation record that was
filled by a previous call to <a href="#lua_getstack"><code>lua_getstack</code></a> or
given as argument to a hook (see <a href="#lua_Hook"><code>lua_Hook</code></a>).
The index <code>n</code> selects which local variable to inspect
(1 is the first parameter or active local variable, and so on,
until the last active local variable).
<a href="#lua_getlocal"><code>lua_getlocal</code></a> pushes the variable's value onto the stack
and returns its name.
<p>
Variable names starting with '<code>(</code>' (open parentheses)
represent internal variables
(loop control variables, temporaries, and C function locals).
<p>
Returns <code>NULL</code> (and pushes nothing)
when the index is greater than
the number of active local variables.
<hr><h3><a name="lua_getstack"><code>lua_getstack</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_getstack (lua_State *L, int level, lua_Debug *ar);</pre>
<p>
Get information about the interpreter runtime stack.
<p>
This function fills parts of a <a href="#lua_Debug"><code>lua_Debug</code></a> structure with
an identification of the <em>activation record</em>
of the function executing at a given level.
Level 0 is the current running function,
whereas level <em>n+1</em> is the function that has called level <em>n</em>.
When there are no errors, <a href="#lua_getstack"><code>lua_getstack</code></a> returns 1;
when called with a level greater than the stack depth,
it returns 0.
<hr><h3><a name="lua_getupvalue"><code>lua_getupvalue</code></a></h3><p>
<span class="apii">[-0, +(0|1), <em>-</em>]</span>
<pre>const char *lua_getupvalue (lua_State *L, int funcindex, int n);</pre>
<p>
Gets information about a closure's upvalue.
(For Lua functions,
upvalues are the external local variables that the function uses,
and that are consequently included in its closure.)
<a href="#lua_getupvalue"><code>lua_getupvalue</code></a> gets the index <code>n</code> of an upvalue,
pushes the upvalue's value onto the stack,
and returns its name.
<code>funcindex</code> points to the closure in the stack.
(Upvalues have no particular order,
as they are active through the whole function.
So, they are numbered in an arbitrary order.)
<p>
Returns <code>NULL</code> (and pushes nothing)
when the index is greater than the number of upvalues.
For C functions, this function uses the empty string <code>""</code>
as a name for all upvalues.
<hr><h3><a name="lua_Hook"><code>lua_Hook</code></a></h3>
<pre>typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);</pre>
<p>
Type for debugging hook functions.
<p>
Whenever a hook is called, its <code>ar</code> argument has its field
<code>event</code> set to the specific event that triggered the hook.
Lua identifies these events with the following constants:
<a name="pdf-LUA_HOOKCALL"><code>LUA_HOOKCALL</code></a>, <a name="pdf-LUA_HOOKRET"><code>LUA_HOOKRET</code></a>,
<a name="pdf-LUA_HOOKTAILRET"><code>LUA_HOOKTAILRET</code></a>, <a name="pdf-LUA_HOOKLINE"><code>LUA_HOOKLINE</code></a>,
and <a name="pdf-LUA_HOOKCOUNT"><code>LUA_HOOKCOUNT</code></a>.
Moreover, for line events, the field <code>currentline</code> is also set.
To get the value of any other field in <code>ar</code>,
the hook must call <a href="#lua_getinfo"><code>lua_getinfo</code></a>.
For return events, <code>event</code> can be <code>LUA_HOOKRET</code>,
the normal value, or <code>LUA_HOOKTAILRET</code>.
In the latter case, Lua is simulating a return from
a function that did a tail call;
in this case, it is useless to call <a href="#lua_getinfo"><code>lua_getinfo</code></a>.
<p>
While Lua is running a hook, it disables other calls to hooks.
Therefore, if a hook calls back Lua to execute a function or a chunk,
this execution occurs without any calls to hooks.
<hr><h3><a name="lua_sethook"><code>lua_sethook</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>int lua_sethook (lua_State *L, lua_Hook f, int mask, int count);</pre>
<p>
Sets the debugging hook function.
<p>
Argument <code>f</code> is the hook function.
<code>mask</code> specifies on which events the hook will be called:
it is formed by a bitwise or of the constants
<a name="pdf-LUA_MASKCALL"><code>LUA_MASKCALL</code></a>,
<a name="pdf-LUA_MASKRET"><code>LUA_MASKRET</code></a>,
<a name="pdf-LUA_MASKLINE"><code>LUA_MASKLINE</code></a>,
and <a name="pdf-LUA_MASKCOUNT"><code>LUA_MASKCOUNT</code></a>.
The <code>count</code> argument is only meaningful when the mask
includes <code>LUA_MASKCOUNT</code>.
For each event, the hook is called as explained below:
<ul>
<li><b>The call hook:</b> is called when the interpreter calls a function.
The hook is called just after Lua enters the new function,
before the function gets its arguments.
</li>
<li><b>The return hook:</b> is called when the interpreter returns from a function.
The hook is called just before Lua leaves the function.
You have no access to the values to be returned by the function.
</li>
<li><b>The line hook:</b> is called when the interpreter is about to
start the execution of a new line of code,
or when it jumps back in the code (even to the same line).
(This event only happens while Lua is executing a Lua function.)
</li>
<li><b>The count hook:</b> is called after the interpreter executes every
<code>count</code> instructions.
(This event only happens while Lua is executing a Lua function.)
</li>
</ul>
<p>
A hook is disabled by setting <code>mask</code> to zero.
<hr><h3><a name="lua_setlocal"><code>lua_setlocal</code></a></h3><p>
<span class="apii">[-(0|1), +0, <em>-</em>]</span>
<pre>const char *lua_setlocal (lua_State *L, lua_Debug *ar, int n);</pre>
<p>
Sets the value of a local variable of a given activation record.
Parameters <code>ar</code> and <code>n</code> are as in <a href="#lua_getlocal"><code>lua_getlocal</code></a>
(see <a href="#lua_getlocal"><code>lua_getlocal</code></a>).
<a href="#lua_setlocal"><code>lua_setlocal</code></a> assigns the value at the top of the stack
to the variable and returns its name.
It also pops the value from the stack.
<p>
Returns <code>NULL</code> (and pops nothing)
when the index is greater than
the number of active local variables.
<hr><h3><a name="lua_setupvalue"><code>lua_setupvalue</code></a></h3><p>
<span class="apii">[-(0|1), +0, <em>-</em>]</span>
<pre>const char *lua_setupvalue (lua_State *L, int funcindex, int n);</pre>
<p>
Sets the value of a closure's upvalue.
It assigns the value at the top of the stack
to the upvalue and returns its name.
It also pops the value from the stack.
Parameters <code>funcindex</code> and <code>n</code> are as in the <a href="#lua_getupvalue"><code>lua_getupvalue</code></a>
(see <a href="#lua_getupvalue"><code>lua_getupvalue</code></a>).
<p>
Returns <code>NULL</code> (and pops nothing)
when the index is greater than the number of upvalues.
<h1>4 - <a name="4">The Auxiliary Library</a></h1>
<p>
The <em>auxiliary library</em> provides several convenient functions
to interface C with Lua.
While the basic API provides the primitive functions for all
interactions between C and Lua,
the auxiliary library provides higher-level functions for some
common tasks.
<p>
All functions from the auxiliary library
are defined in header file <code>lauxlib.h</code> and
have a prefix <code>luaL_</code>.
<p>
All functions in the auxiliary library are built on
top of the basic API,
and so they provide nothing that cannot be done with this API.
<p>
Several functions in the auxiliary library are used to
check C function arguments.
Their names are always <code>luaL_check*</code> or <code>luaL_opt*</code>.
All of these functions throw an error if the check is not satisfied.
Because the error message is formatted for arguments
(e.g., "<code>bad argument #1</code>"),
you should not use these functions for other stack values.
<h2>4.1 - <a name="4.1">Functions and Types</a></h2>
<p>
Here we list all functions and types from the auxiliary library
in alphabetical order.
<hr><h3><a name="luaL_addchar"><code>luaL_addchar</code></a></h3><p>
<span class="apii">[-0, +0, <em>m</em>]</span>
<pre>void luaL_addchar (luaL_Buffer *B, char c);</pre>
<p>
Adds the character <code>c</code> to the buffer <code>B</code>
(see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>).
<hr><h3><a name="luaL_addlstring"><code>luaL_addlstring</code></a></h3><p>
<span class="apii">[-0, +0, <em>m</em>]</span>
<pre>void luaL_addlstring (luaL_Buffer *B, const char *s, size_t l);</pre>
<p>
Adds the string pointed to by <code>s</code> with length <code>l</code> to
the buffer <code>B</code>
(see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>).
The string may contain embedded zeros.
<hr><h3><a name="luaL_addsize"><code>luaL_addsize</code></a></h3><p>
<span class="apii">[-0, +0, <em>m</em>]</span>
<pre>void luaL_addsize (luaL_Buffer *B, size_t n);</pre>
<p>
Adds to the buffer <code>B</code> (see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>)
a string of length <code>n</code> previously copied to the
buffer area (see <a href="#luaL_prepbuffer"><code>luaL_prepbuffer</code></a>).
<hr><h3><a name="luaL_addstring"><code>luaL_addstring</code></a></h3><p>
<span class="apii">[-0, +0, <em>m</em>]</span>
<pre>void luaL_addstring (luaL_Buffer *B, const char *s);</pre>
<p>
Adds the zero-terminated string pointed to by <code>s</code>
to the buffer <code>B</code>
(see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>).
The string may not contain embedded zeros.
<hr><h3><a name="luaL_addvalue"><code>luaL_addvalue</code></a></h3><p>
<span class="apii">[-1, +0, <em>m</em>]</span>
<pre>void luaL_addvalue (luaL_Buffer *B);</pre>
<p>
Adds the value at the top of the stack
to the buffer <code>B</code>
(see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>).
Pops the value.
<p>
This is the only function on string buffers that can (and must)
be called with an extra element on the stack,
which is the value to be added to the buffer.
<hr><h3><a name="luaL_argcheck"><code>luaL_argcheck</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>void luaL_argcheck (lua_State *L,
int cond,
int narg,
const char *extramsg);</pre>
<p>
Checks whether <code>cond</code> is true.
If not, raises an error with the following message,
where <code>func</code> is retrieved from the call stack:
<pre>
bad argument #<narg> to <func> (<extramsg>)
</pre>
<hr><h3><a name="luaL_argerror"><code>luaL_argerror</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>int luaL_argerror (lua_State *L, int narg, const char *extramsg);</pre>
<p>
Raises an error with the following message,
where <code>func</code> is retrieved from the call stack:
<pre>
bad argument #<narg> to <func> (<extramsg>)
</pre>
<p>
This function never returns,
but it is an idiom to use it in C functions
as <code>return luaL_argerror(<em>args</em>)</code>.
<hr><h3><a name="luaL_Buffer"><code>luaL_Buffer</code></a></h3>
<pre>typedef struct luaL_Buffer luaL_Buffer;</pre>
<p>
Type for a <em>string buffer</em>.
<p>
A string buffer allows C code to build Lua strings piecemeal.
Its pattern of use is as follows:
<ul>
<li>First you declare a variable <code>b</code> of type <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>.</li>
<li>Then you initialize it with a call <code>luaL_buffinit(L, &b)</code>.</li>
<li>
Then you add string pieces to the buffer calling any of
the <code>luaL_add*</code> functions.
</li>
<li>
You finish by calling <code>luaL_pushresult(&b)</code>.
This call leaves the final string on the top of the stack.
</li>
</ul>
<p>
During its normal operation,
a string buffer uses a variable number of stack slots.
So, while using a buffer, you cannot assume that you know where
the top of the stack is.
You can use the stack between successive calls to buffer operations
as long as that use is balanced;
that is,
when you call a buffer operation,
the stack is at the same level
it was immediately after the previous buffer operation.
(The only exception to this rule is <a href="#luaL_addvalue"><code>luaL_addvalue</code></a>.)
After calling <a href="#luaL_pushresult"><code>luaL_pushresult</code></a> the stack is back to its
level when the buffer was initialized,
plus the final string on its top.
<hr><h3><a name="luaL_buffinit"><code>luaL_buffinit</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>void luaL_buffinit (lua_State *L, luaL_Buffer *B);</pre>
<p>
Initializes a buffer <code>B</code>.
This function does not allocate any space;
the buffer must be declared as a variable
(see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>).
<hr><h3><a name="luaL_callmeta"><code>luaL_callmeta</code></a></h3><p>
<span class="apii">[-0, +(0|1), <em>e</em>]</span>
<pre>int luaL_callmeta (lua_State *L, int obj, const char *e);</pre>
<p>
Calls a metamethod.
<p>
If the object at index <code>obj</code> has a metatable and this
metatable has a field <code>e</code>,
this function calls this field and passes the object as its only argument.
In this case this function returns 1 and pushes onto the
stack the value returned by the call.
If there is no metatable or no metamethod,
this function returns 0 (without pushing any value on the stack).
<hr><h3><a name="luaL_checkany"><code>luaL_checkany</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>void luaL_checkany (lua_State *L, int narg);</pre>
<p>
Checks whether the function has an argument
of any type (including <b>nil</b>) at position <code>narg</code>.
<hr><h3><a name="luaL_checkint"><code>luaL_checkint</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>int luaL_checkint (lua_State *L, int narg);</pre>
<p>
Checks whether the function argument <code>narg</code> is a number
and returns this number cast to an <code>int</code>.
<hr><h3><a name="luaL_checkinteger"><code>luaL_checkinteger</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>lua_Integer luaL_checkinteger (lua_State *L, int narg);</pre>
<p>
Checks whether the function argument <code>narg</code> is a number
and returns this number cast to a <a href="#lua_Integer"><code>lua_Integer</code></a>.
<hr><h3><a name="luaL_checklong"><code>luaL_checklong</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>long luaL_checklong (lua_State *L, int narg);</pre>
<p>
Checks whether the function argument <code>narg</code> is a number
and returns this number cast to a <code>long</code>.
<hr><h3><a name="luaL_checklstring"><code>luaL_checklstring</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>const char *luaL_checklstring (lua_State *L, int narg, size_t *l);</pre>
<p>
Checks whether the function argument <code>narg</code> is a string
and returns this string;
if <code>l</code> is not <code>NULL</code> fills <code>*l</code>
with the string's length.
<p>
This function uses <a href="#lua_tolstring"><code>lua_tolstring</code></a> to get its result,
so all conversions and caveats of that function apply here.
<hr><h3><a name="luaL_checknumber"><code>luaL_checknumber</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>lua_Number luaL_checknumber (lua_State *L, int narg);</pre>
<p>
Checks whether the function argument <code>narg</code> is a number
and returns this number.
<hr><h3><a name="luaL_checkoption"><code>luaL_checkoption</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>int luaL_checkoption (lua_State *L,
int narg,
const char *def,
const char *const lst[]);</pre>
<p>
Checks whether the function argument <code>narg</code> is a string and
searches for this string in the array <code>lst</code>
(which must be NULL-terminated).
Returns the index in the array where the string was found.
Raises an error if the argument is not a string or
if the string cannot be found.
<p>
If <code>def</code> is not <code>NULL</code>,
the function uses <code>def</code> as a default value when
there is no argument <code>narg</code> or if this argument is <b>nil</b>.
<p>
This is a useful function for mapping strings to C enums.
(The usual convention in Lua libraries is
to use strings instead of numbers to select options.)
<hr><h3><a name="luaL_checkstack"><code>luaL_checkstack</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>void luaL_checkstack (lua_State *L, int sz, const char *msg);</pre>
<p>
Grows the stack size to <code>top + sz</code> elements,
raising an error if the stack cannot grow to that size.
<code>msg</code> is an additional text to go into the error message.
<hr><h3><a name="luaL_checkstring"><code>luaL_checkstring</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>const char *luaL_checkstring (lua_State *L, int narg);</pre>
<p>
Checks whether the function argument <code>narg</code> is a string
and returns this string.
<p>
This function uses <a href="#lua_tolstring"><code>lua_tolstring</code></a> to get its result,
so all conversions and caveats of that function apply here.
<hr><h3><a name="luaL_checktype"><code>luaL_checktype</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>void luaL_checktype (lua_State *L, int narg, int t);</pre>
<p>
Checks whether the function argument <code>narg</code> has type <code>t</code>.
See <a href="#lua_type"><code>lua_type</code></a> for the encoding of types for <code>t</code>.
<hr><h3><a name="luaL_checkudata"><code>luaL_checkudata</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>void *luaL_checkudata (lua_State *L, int narg, const char *tname);</pre>
<p>
Checks whether the function argument <code>narg</code> is a userdata
of the type <code>tname</code> (see <a href="#luaL_newmetatable"><code>luaL_newmetatable</code></a>).
<hr><h3><a name="luaL_dofile"><code>luaL_dofile</code></a></h3><p>
<span class="apii">[-0, +?, <em>m</em>]</span>
<pre>int luaL_dofile (lua_State *L, const char *filename);</pre>
<p>
Loads and runs the given file.
It is defined as the following macro:
<pre>
(luaL_loadfile(L, filename) || lua_pcall(L, 0, LUA_MULTRET, 0))
</pre><p>
It returns 0 if there are no errors
or 1 in case of errors.
<hr><h3><a name="luaL_dostring"><code>luaL_dostring</code></a></h3><p>
<span class="apii">[-0, +?, <em>m</em>]</span>
<pre>int luaL_dostring (lua_State *L, const char *str);</pre>
<p>
Loads and runs the given string.
It is defined as the following macro:
<pre>
(luaL_loadstring(L, str) || lua_pcall(L, 0, LUA_MULTRET, 0))
</pre><p>
It returns 0 if there are no errors
or 1 in case of errors.
<hr><h3><a name="luaL_error"><code>luaL_error</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>int luaL_error (lua_State *L, const char *fmt, ...);</pre>
<p>
Raises an error.
The error message format is given by <code>fmt</code>
plus any extra arguments,
following the same rules of <a href="#lua_pushfstring"><code>lua_pushfstring</code></a>.
It also adds at the beginning of the message the file name and
the line number where the error occurred,
if this information is available.
<p>
This function never returns,
but it is an idiom to use it in C functions
as <code>return luaL_error(<em>args</em>)</code>.
<hr><h3><a name="luaL_getmetafield"><code>luaL_getmetafield</code></a></h3><p>
<span class="apii">[-0, +(0|1), <em>m</em>]</span>
<pre>int luaL_getmetafield (lua_State *L, int obj, const char *e);</pre>
<p>
Pushes onto the stack the field <code>e</code> from the metatable
of the object at index <code>obj</code>.
If the object does not have a metatable,
or if the metatable does not have this field,
returns 0 and pushes nothing.
<hr><h3><a name="luaL_getmetatable"><code>luaL_getmetatable</code></a></h3><p>
<span class="apii">[-0, +1, <em>-</em>]</span>
<pre>void luaL_getmetatable (lua_State *L, const char *tname);</pre>
<p>
Pushes onto the stack the metatable associated with name <code>tname</code>
in the registry (see <a href="#luaL_newmetatable"><code>luaL_newmetatable</code></a>).
<hr><h3><a name="luaL_gsub"><code>luaL_gsub</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>const char *luaL_gsub (lua_State *L,
const char *s,
const char *p,
const char *r);</pre>
<p>
Creates a copy of string <code>s</code> by replacing
any occurrence of the string <code>p</code>
with the string <code>r</code>.
Pushes the resulting string on the stack and returns it.
<hr><h3><a name="luaL_loadbuffer"><code>luaL_loadbuffer</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>int luaL_loadbuffer (lua_State *L,
const char *buff,
size_t sz,
const char *name);</pre>
<p>
Loads a buffer as a Lua chunk.
This function uses <a href="#lua_load"><code>lua_load</code></a> to load the chunk in the
buffer pointed to by <code>buff</code> with size <code>sz</code>.
<p>
This function returns the same results as <a href="#lua_load"><code>lua_load</code></a>.
<code>name</code> is the chunk name,
used for debug information and error messages.
<hr><h3><a name="luaL_loadfile"><code>luaL_loadfile</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>int luaL_loadfile (lua_State *L, const char *filename);</pre>
<p>
Loads a file as a Lua chunk.
This function uses <a href="#lua_load"><code>lua_load</code></a> to load the chunk in the file
named <code>filename</code>.
If <code>filename</code> is <code>NULL</code>,
then it loads from the standard input.
The first line in the file is ignored if it starts with a <code>#</code>.
<p>
This function returns the same results as <a href="#lua_load"><code>lua_load</code></a>,
but it has an extra error code <a name="pdf-LUA_ERRFILE"><code>LUA_ERRFILE</code></a>
if it cannot open/read the file.
<p>
As <a href="#lua_load"><code>lua_load</code></a>, this function only loads the chunk;
it does not run it.
<hr><h3><a name="luaL_loadstring"><code>luaL_loadstring</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>int luaL_loadstring (lua_State *L, const char *s);</pre>
<p>
Loads a string as a Lua chunk.
This function uses <a href="#lua_load"><code>lua_load</code></a> to load the chunk in
the zero-terminated string <code>s</code>.
<p>
This function returns the same results as <a href="#lua_load"><code>lua_load</code></a>.
<p>
Also as <a href="#lua_load"><code>lua_load</code></a>, this function only loads the chunk;
it does not run it.
<hr><h3><a name="luaL_newmetatable"><code>luaL_newmetatable</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>int luaL_newmetatable (lua_State *L, const char *tname);</pre>
<p>
If the registry already has the key <code>tname</code>,
returns 0.
Otherwise,
creates a new table to be used as a metatable for userdata,
adds it to the registry with key <code>tname</code>,
and returns 1.
<p>
In both cases pushes onto the stack the final value associated
with <code>tname</code> in the registry.
<hr><h3><a name="luaL_newstate"><code>luaL_newstate</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>lua_State *luaL_newstate (void);</pre>
<p>
Creates a new Lua state.
It calls <a href="#lua_newstate"><code>lua_newstate</code></a> with an
allocator based on the standard C <code>realloc</code> function
and then sets a panic function (see <a href="#lua_atpanic"><code>lua_atpanic</code></a>) that prints
an error message to the standard error output in case of fatal
errors.
<p>
Returns the new state,
or <code>NULL</code> if there is a memory allocation error.
<hr><h3><a name="luaL_openlibs"><code>luaL_openlibs</code></a></h3><p>
<span class="apii">[-0, +0, <em>m</em>]</span>
<pre>void luaL_openlibs (lua_State *L);</pre>
<p>
Opens all standard Lua libraries into the given state.
<hr><h3><a name="luaL_optint"><code>luaL_optint</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>int luaL_optint (lua_State *L, int narg, int d);</pre>
<p>
If the function argument <code>narg</code> is a number,
returns this number cast to an <code>int</code>.
If this argument is absent or is <b>nil</b>,
returns <code>d</code>.
Otherwise, raises an error.
<hr><h3><a name="luaL_optinteger"><code>luaL_optinteger</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>lua_Integer luaL_optinteger (lua_State *L,
int narg,
lua_Integer d);</pre>
<p>
If the function argument <code>narg</code> is a number,
returns this number cast to a <a href="#lua_Integer"><code>lua_Integer</code></a>.
If this argument is absent or is <b>nil</b>,
returns <code>d</code>.
Otherwise, raises an error.
<hr><h3><a name="luaL_optlong"><code>luaL_optlong</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>long luaL_optlong (lua_State *L, int narg, long d);</pre>
<p>
If the function argument <code>narg</code> is a number,
returns this number cast to a <code>long</code>.
If this argument is absent or is <b>nil</b>,
returns <code>d</code>.
Otherwise, raises an error.
<hr><h3><a name="luaL_optlstring"><code>luaL_optlstring</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>const char *luaL_optlstring (lua_State *L,
int narg,
const char *d,
size_t *l);</pre>
<p>
If the function argument <code>narg</code> is a string,
returns this string.
If this argument is absent or is <b>nil</b>,
returns <code>d</code>.
Otherwise, raises an error.
<p>
If <code>l</code> is not <code>NULL</code>,
fills the position <code>*l</code> with the results's length.
<hr><h3><a name="luaL_optnumber"><code>luaL_optnumber</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>lua_Number luaL_optnumber (lua_State *L, int narg, lua_Number d);</pre>
<p>
If the function argument <code>narg</code> is a number,
returns this number.
If this argument is absent or is <b>nil</b>,
returns <code>d</code>.
Otherwise, raises an error.
<hr><h3><a name="luaL_optstring"><code>luaL_optstring</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>const char *luaL_optstring (lua_State *L,
int narg,
const char *d);</pre>
<p>
If the function argument <code>narg</code> is a string,
returns this string.
If this argument is absent or is <b>nil</b>,
returns <code>d</code>.
Otherwise, raises an error.
<hr><h3><a name="luaL_prepbuffer"><code>luaL_prepbuffer</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>char *luaL_prepbuffer (luaL_Buffer *B);</pre>
<p>
Returns an address to a space of size <a name="pdf-LUAL_BUFFERSIZE"><code>LUAL_BUFFERSIZE</code></a>
where you can copy a string to be added to buffer <code>B</code>
(see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>).
After copying the string into this space you must call
<a href="#luaL_addsize"><code>luaL_addsize</code></a> with the size of the string to actually add
it to the buffer.
<hr><h3><a name="luaL_pushresult"><code>luaL_pushresult</code></a></h3><p>
<span class="apii">[-?, +1, <em>m</em>]</span>
<pre>void luaL_pushresult (luaL_Buffer *B);</pre>
<p>
Finishes the use of buffer <code>B</code> leaving the final string on
the top of the stack.
<hr><h3><a name="luaL_ref"><code>luaL_ref</code></a></h3><p>
<span class="apii">[-1, +0, <em>m</em>]</span>
<pre>int luaL_ref (lua_State *L, int t);</pre>
<p>
Creates and returns a <em>reference</em>,
in the table at index <code>t</code>,
for the object at the top of the stack (and pops the object).
<p>
A reference is a unique integer key.
As long as you do not manually add integer keys into table <code>t</code>,
<a href="#luaL_ref"><code>luaL_ref</code></a> ensures the uniqueness of the key it returns.
You can retrieve an object referred by reference <code>r</code>
by calling <code>lua_rawgeti(L, t, r)</code>.
Function <a href="#luaL_unref"><code>luaL_unref</code></a> frees a reference and its associated object.
<p>
If the object at the top of the stack is <b>nil</b>,
<a href="#luaL_ref"><code>luaL_ref</code></a> returns the constant <a name="pdf-LUA_REFNIL"><code>LUA_REFNIL</code></a>.
The constant <a name="pdf-LUA_NOREF"><code>LUA_NOREF</code></a> is guaranteed to be different
from any reference returned by <a href="#luaL_ref"><code>luaL_ref</code></a>.
<hr><h3><a name="luaL_Reg"><code>luaL_Reg</code></a></h3>
<pre>typedef struct luaL_Reg {
const char *name;
lua_CFunction func;
} luaL_Reg;</pre>
<p>
Type for arrays of functions to be registered by
<a href="#luaL_register"><code>luaL_register</code></a>.
<code>name</code> is the function name and <code>func</code> is a pointer to
the function.
Any array of <a href="#luaL_Reg"><code>luaL_Reg</code></a> must end with an sentinel entry
in which both <code>name</code> and <code>func</code> are <code>NULL</code>.
<hr><h3><a name="luaL_register"><code>luaL_register</code></a></h3><p>
<span class="apii">[-(0|1), +1, <em>m</em>]</span>
<pre>void luaL_register (lua_State *L,
const char *libname,
const luaL_Reg *l);</pre>
<p>
Opens a library.
<p>
When called with <code>libname</code> equal to <code>NULL</code>,
it simply registers all functions in the list <code>l</code>
(see <a href="#luaL_Reg"><code>luaL_Reg</code></a>) into the table on the top of the stack.
<p>
When called with a non-null <code>libname</code>,
<code>luaL_register</code> creates a new table <code>t</code>,
sets it as the value of the global variable <code>libname</code>,
sets it as the value of <code>package.loaded[libname]</code>,
and registers on it all functions in the list <code>l</code>.
If there is a table in <code>package.loaded[libname]</code> or in
variable <code>libname</code>,
reuses this table instead of creating a new one.
<p>
In any case the function leaves the table
on the top of the stack.
<hr><h3><a name="luaL_typename"><code>luaL_typename</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>const char *luaL_typename (lua_State *L, int index);</pre>
<p>
Returns the name of the type of the value at the given index.
<hr><h3><a name="luaL_typerror"><code>luaL_typerror</code></a></h3><p>
<span class="apii">[-0, +0, <em>v</em>]</span>
<pre>int luaL_typerror (lua_State *L, int narg, const char *tname);</pre>
<p>
Generates an error with a message like the following:
<pre>
<em>location</em>: bad argument <em>narg</em> to '<em>func</em>' (<em>tname</em> expected, got <em>rt</em>)
</pre><p>
where <code><em>location</em></code> is produced by <a href="#luaL_where"><code>luaL_where</code></a>,
<code><em>func</em></code> is the name of the current function,
and <code><em>rt</em></code> is the type name of the actual argument.
<hr><h3><a name="luaL_unref"><code>luaL_unref</code></a></h3><p>
<span class="apii">[-0, +0, <em>-</em>]</span>
<pre>void luaL_unref (lua_State *L, int t, int ref);</pre>
<p>
Releases reference <code>ref</code> from the table at index <code>t</code>
(see <a href="#luaL_ref"><code>luaL_ref</code></a>).
The entry is removed from the table,
so that the referred object can be collected.
The reference <code>ref</code> is also freed to be used again.
<p>
If <code>ref</code> is <a href="#pdf-LUA_NOREF"><code>LUA_NOREF</code></a> or <a href="#pdf-LUA_REFNIL"><code>LUA_REFNIL</code></a>,
<a href="#luaL_unref"><code>luaL_unref</code></a> does nothing.
<hr><h3><a name="luaL_where"><code>luaL_where</code></a></h3><p>
<span class="apii">[-0, +1, <em>m</em>]</span>
<pre>void luaL_where (lua_State *L, int lvl);</pre>
<p>
Pushes onto the stack a string identifying the current position
of the control at level <code>lvl</code> in the call stack.
Typically this string has the following format:
<pre>
<em>chunkname</em>:<em>currentline</em>:
</pre><p>
Level 0 is the running function,
level 1 is the function that called the running function,
etc.
<p>
This function is used to build a prefix for error messages.
<h1>5 - <a name="5">Standard Libraries</a></h1>
<p>
The standard Lua libraries provide useful functions
that are implemented directly through the C API.
Some of these functions provide essential services to the language
(e.g., <a href="#pdf-type"><code>type</code></a> and <a href="#pdf-getmetatable"><code>getmetatable</code></a>);
others provide access to "outside" services (e.g., I/O);
and others could be implemented in Lua itself,
but are quite useful or have critical performance requirements that
deserve an implementation in C (e.g., <a href="#pdf-table.sort"><code>table.sort</code></a>).
<p>
All libraries are implemented through the official C API
and are provided as separate C modules.
Currently, Lua has the following standard libraries:
<ul>
<li>basic library, which includes the coroutine sub-library;</li>
<li>package library;</li>
<li>string manipulation;</li>
<li>table manipulation;</li>
<li>mathematical functions (sin, log, etc.);</li>
<li>input and output;</li>
<li>operating system facilities;</li>
<li>debug facilities.</li>
</ul><p>
Except for the basic and package libraries,
each library provides all its functions as fields of a global table
or as methods of its objects.
<p>
To have access to these libraries,
the C host program should call the <a href="#luaL_openlibs"><code>luaL_openlibs</code></a> function,
which opens all standard libraries.
Alternatively,
it can open them individually by calling
<a name="pdf-luaopen_base"><code>luaopen_base</code></a> (for the basic library),
<a name="pdf-luaopen_package"><code>luaopen_package</code></a> (for the package library),
<a name="pdf-luaopen_string"><code>luaopen_string</code></a> (for the string library),
<a name="pdf-luaopen_table"><code>luaopen_table</code></a> (for the table library),
<a name="pdf-luaopen_math"><code>luaopen_math</code></a> (for the mathematical library),
<a name="pdf-luaopen_io"><code>luaopen_io</code></a> (for the I/O library),
<a name="pdf-luaopen_os"><code>luaopen_os</code></a> (for the Operating System library),
and <a name="pdf-luaopen_debug"><code>luaopen_debug</code></a> (for the debug library).
These functions are declared in <a name="pdf-lualib.h"><code>lualib.h</code></a>
and should not be called directly:
you must call them like any other Lua C function,
e.g., by using <a href="#lua_call"><code>lua_call</code></a>.
<h2>5.1 - <a name="5.1">Basic Functions</a></h2>
<p>
The basic library provides some core functions to Lua.
If you do not include this library in your application,
you should check carefully whether you need to provide
implementations for some of its facilities.
<p>
<hr><h3><a name="pdf-assert"><code>assert (v [, message])</code></a></h3>
Issues an error when
the value of its argument <code>v</code> is false (i.e., <b>nil</b> or <b>false</b>);
otherwise, returns all its arguments.
<code>message</code> is an error message;
when absent, it defaults to "assertion failed!"
<p>
<hr><h3><a name="pdf-collectgarbage"><code>collectgarbage ([opt [, arg]])</code></a></h3>
<p>
This function is a generic interface to the garbage collector.
It performs different functions according to its first argument, <code>opt</code>:
<ul>
<li><b>"collect":</b>
performs a full garbage-collection cycle.
This is the default option.
</li>
<li><b>"stop":</b>
stops the garbage collector.
</li>
<li><b>"restart":</b>
restarts the garbage collector.
</li>
<li><b>"count":</b>
returns the total memory in use by Lua (in Kbytes).
</li>
<li><b>"step":</b>
performs a garbage-collection step.
The step "size" is controlled by <code>arg</code>
(larger values mean more steps) in a non-specified way.
If you want to control the step size
you must experimentally tune the value of <code>arg</code>.
Returns <b>true</b> if the step finished a collection cycle.
</li>
<li><b>"setpause":</b>
sets <code>arg</code> as the new value for the <em>pause</em> of
the collector (see <a href="#2.10">§2.10</a>).
Returns the previous value for <em>pause</em>.
</li>
<li><b>"setstepmul":</b>
sets <code>arg</code> as the new value for the <em>step multiplier</em> of
the collector (see <a href="#2.10">§2.10</a>).
Returns the previous value for <em>step</em>.
</li>
</ul>
<p>
<hr><h3><a name="pdf-dofile"><code>dofile ([filename])</code></a></h3>
Opens the named file and executes its contents as a Lua chunk.
When called without arguments,
<code>dofile</code> executes the contents of the standard input (<code>stdin</code>).
Returns all values returned by the chunk.
In case of errors, <code>dofile</code> propagates the error
to its caller (that is, <code>dofile</code> does not run in protected mode).
<p>
<hr><h3><a name="pdf-error"><code>error (message [, level])</code></a></h3>
Terminates the last protected function called
and returns <code>message</code> as the error message.
Function <code>error</code> never returns.
<p>
Usually, <code>error</code> adds some information about the error position
at the beginning of the message.
The <code>level</code> argument specifies how to get the error position.
With level 1 (the default), the error position is where the
<code>error</code> function was called.
Level 2 points the error to where the function
that called <code>error</code> was called; and so on.
Passing a level 0 avoids the addition of error position information
to the message.
<p>
<hr><h3><a name="pdf-_G"><code>_G</code></a></h3>
A global variable (not a function) that
holds the global environment (that is, <code>_G._G = _G</code>).
Lua itself does not use this variable;
changing its value does not affect any environment,
nor vice-versa.
(Use <a href="#pdf-setfenv"><code>setfenv</code></a> to change environments.)
<p>
<hr><h3><a name="pdf-getfenv"><code>getfenv ([f])</code></a></h3>
Returns the current environment in use by the function.
<code>f</code> can be a Lua function or a number
that specifies the function at that stack level:
Level 1 is the function calling <code>getfenv</code>.
If the given function is not a Lua function,
or if <code>f</code> is 0,
<code>getfenv</code> returns the global environment.
The default for <code>f</code> is 1.
<p>
<hr><h3><a name="pdf-getmetatable"><code>getmetatable (object)</code></a></h3>
<p>
If <code>object</code> does not have a metatable, returns <b>nil</b>.
Otherwise,
if the object's metatable has a <code>"__metatable"</code> field,
returns the associated value.
Otherwise, returns the metatable of the given object.
<p>
<hr><h3><a name="pdf-ipairs"><code>ipairs (t)</code></a></h3>
<p>
Returns three values: an iterator function, the table <code>t</code>, and 0,
so that the construction
<pre>
for i,v in ipairs(t) do <em>body</em> end
</pre><p>
will iterate over the pairs (<code>1,t[1]</code>), (<code>2,t[2]</code>), ···,
up to the first integer key absent from the table.
<p>
<hr><h3><a name="pdf-load"><code>load (func [, chunkname])</code></a></h3>
<p>
Loads a chunk using function <code>func</code> to get its pieces.
Each call to <code>func</code> must return a string that concatenates
with previous results.
A return of an empty string, <b>nil</b>, or no value signals the end of the chunk.
<p>
If there are no errors,
returns the compiled chunk as a function;
otherwise, returns <b>nil</b> plus the error message.
The environment of the returned function is the global environment.
<p>
<code>chunkname</code> is used as the chunk name for error messages
and debug information.
When absent,
it defaults to "<code>=(load)</code>".
<p>
<hr><h3><a name="pdf-loadfile"><code>loadfile ([filename])</code></a></h3>
<p>
Similar to <a href="#pdf-load"><code>load</code></a>,
but gets the chunk from file <code>filename</code>
or from the standard input,
if no file name is given.
<p>
<hr><h3><a name="pdf-loadstring"><code>loadstring (string [, chunkname])</code></a></h3>
<p>
Similar to <a href="#pdf-load"><code>load</code></a>,
but gets the chunk from the given string.
<p>
To load and run a given string, use the idiom
<pre>
assert(loadstring(s))()
</pre>
<p>
When absent,
<code>chunkname</code> defaults to the given string.
<p>
<hr><h3><a name="pdf-next"><code>next (table [, index])</code></a></h3>
<p>
Allows a program to traverse all fields of a table.
Its first argument is a table and its second argument
is an index in this table.
<code>next</code> returns the next index of the table
and its associated value.
When called with <b>nil</b> as its second argument,
<code>next</code> returns an initial index
and its associated value.
When called with the last index,
or with <b>nil</b> in an empty table,
<code>next</code> returns <b>nil</b>.
If the second argument is absent, then it is interpreted as <b>nil</b>.
In particular,
you can use <code>next(t)</code> to check whether a table is empty.
<p>
The order in which the indices are enumerated is not specified,
<em>even for numeric indices</em>.
(To traverse a table in numeric order,
use a numerical <b>for</b> or the <a href="#pdf-ipairs"><code>ipairs</code></a> function.)
<p>
The behavior of <code>next</code> is <em>undefined</em> if,
during the traversal,
you assign any value to a non-existent field in the table.
You may however modify existing fields.
In particular, you may clear existing fields.
<p>
<hr><h3><a name="pdf-pairs"><code>pairs (t)</code></a></h3>
<p>
Returns three values: the <a href="#pdf-next"><code>next</code></a> function, the table <code>t</code>, and <b>nil</b>,
so that the construction
<pre>
for k,v in pairs(t) do <em>body</em> end
</pre><p>
will iterate over all key–value pairs of table <code>t</code>.
<p>
See function <a href="#pdf-next"><code>next</code></a> for the caveats of modifying
the table during its traversal.
<p>
<hr><h3><a name="pdf-pcall"><code>pcall (f, arg1, ···)</code></a></h3>
<p>
Calls function <code>f</code> with
the given arguments in <em>protected mode</em>.
This means that any error inside <code>f</code> is not propagated;
instead, <code>pcall</code> catches the error
and returns a status code.
Its first result is the status code (a boolean),
which is true if the call succeeds without errors.
In such case, <code>pcall</code> also returns all results from the call,
after this first result.
In case of any error, <code>pcall</code> returns <b>false</b> plus the error message.
<p>
<hr><h3><a name="pdf-print"><code>print (···)</code></a></h3>
Receives any number of arguments,
and prints their values to <code>stdout</code>,
using the <a href="#pdf-tostring"><code>tostring</code></a> function to convert them to strings.
<code>print</code> is not intended for formatted output,
but only as a quick way to show a value,
typically for debugging.
For formatted output, use <a href="#pdf-string.format"><code>string.format</code></a>.
<p>
<hr><h3><a name="pdf-rawequal"><code>rawequal (v1, v2)</code></a></h3>
Checks whether <code>v1</code> is equal to <code>v2</code>,
without invoking any metamethod.
Returns a boolean.
<p>
<hr><h3><a name="pdf-rawget"><code>rawget (table, index)</code></a></h3>
Gets the real value of <code>table[index]</code>,
without invoking any metamethod.
<code>table</code> must be a table;
<code>index</code> may be any value.
<p>
<hr><h3><a name="pdf-rawset"><code>rawset (table, index, value)</code></a></h3>
Sets the real value of <code>table[index]</code> to <code>value</code>,
without invoking any metamethod.
<code>table</code> must be a table,
<code>index</code> any value different from <b>nil</b>,
and <code>value</code> any Lua value.
<p>
This function returns <code>table</code>.
<p>
<hr><h3><a name="pdf-select"><code>select (index, ···)</code></a></h3>
<p>
If <code>index</code> is a number,
returns all arguments after argument number <code>index</code>.
Otherwise, <code>index</code> must be the string <code>"#"</code>,
and <code>select</code> returns the total number of extra arguments it received.
<p>
<hr><h3><a name="pdf-setfenv"><code>setfenv (f, table)</code></a></h3>
<p>
Sets the environment to be used by the given function.
<code>f</code> can be a Lua function or a number
that specifies the function at that stack level:
Level 1 is the function calling <code>setfenv</code>.
<code>setfenv</code> returns the given function.
<p>
As a special case, when <code>f</code> is 0 <code>setfenv</code> changes
the environment of the running thread.
In this case, <code>setfenv</code> returns no values.
<p>
<hr><h3><a name="pdf-setmetatable"><code>setmetatable (table, metatable)</code></a></h3>
<p>
Sets the metatable for the given table.
(You cannot change the metatable of other types from Lua, only from C.)
If <code>metatable</code> is <b>nil</b>,
removes the metatable of the given table.
If the original metatable has a <code>"__metatable"</code> field,
raises an error.
<p>
This function returns <code>table</code>.
<p>
<hr><h3><a name="pdf-tonumber"><code>tonumber (e [, base])</code></a></h3>
Tries to convert its argument to a number.
If the argument is already a number or a string convertible
to a number, then <code>tonumber</code> returns this number;
otherwise, it returns <b>nil</b>.
<p>
An optional argument specifies the base to interpret the numeral.
The base may be any integer between 2 and 36, inclusive.
In bases above 10, the letter '<code>A</code>' (in either upper or lower case)
represents 10, '<code>B</code>' represents 11, and so forth,
with '<code>Z</code>' representing 35.
In base 10 (the default), the number can have a decimal part,
as well as an optional exponent part (see <a href="#2.1">§2.1</a>).
In other bases, only unsigned integers are accepted.
<p>
<hr><h3><a name="pdf-tostring"><code>tostring (e)</code></a></h3>
Receives an argument of any type and
converts it to a string in a reasonable format.
For complete control of how numbers are converted,
use <a href="#pdf-string.format"><code>string.format</code></a>.
<p>
If the metatable of <code>e</code> has a <code>"__tostring"</code> field,
then <code>tostring</code> calls the corresponding value
with <code>e</code> as argument,
and uses the result of the call as its result.
<p>
<hr><h3><a name="pdf-type"><code>type (v)</code></a></h3>
Returns the type of its only argument, coded as a string.
The possible results of this function are
"<code>nil</code>" (a string, not the value <b>nil</b>),
"<code>number</code>",
"<code>string</code>",
"<code>boolean</code>",
"<code>table</code>",
"<code>function</code>",
"<code>thread</code>",
and "<code>userdata</code>".
<p>
<hr><h3><a name="pdf-unpack"><code>unpack (list [, i [, j]])</code></a></h3>
Returns the elements from the given table.
This function is equivalent to
<pre>
return list[i], list[i+1], ···, list[j]
</pre><p>
except that the above code can be written only for a fixed number
of elements.
By default, <code>i</code> is 1 and <code>j</code> is the length of the list,
as defined by the length operator (see <a href="#2.5.5">§2.5.5</a>).
<p>
<hr><h3><a name="pdf-_VERSION"><code>_VERSION</code></a></h3>
A global variable (not a function) that
holds a string containing the current interpreter version.
The current contents of this variable is "<code>Lua 5.1</code>".
<p>
<hr><h3><a name="pdf-xpcall"><code>xpcall (f, err)</code></a></h3>
<p>
This function is similar to <a href="#pdf-pcall"><code>pcall</code></a>,
except that you can set a new error handler.
<p>
<code>xpcall</code> calls function <code>f</code> in protected mode,
using <code>err</code> as the error handler.
Any error inside <code>f</code> is not propagated;
instead, <code>xpcall</code> catches the error,
calls the <code>err</code> function with the original error object,
and returns a status code.
Its first result is the status code (a boolean),
which is true if the call succeeds without errors.
In this case, <code>xpcall</code> also returns all results from the call,
after this first result.
In case of any error,
<code>xpcall</code> returns <b>false</b> plus the result from <code>err</code>.
<h2>5.2 - <a name="5.2">Coroutine Manipulation</a></h2>
<p>
The operations related to coroutines comprise a sub-library of
the basic library and come inside the table <a name="pdf-coroutine"><code>coroutine</code></a>.
See <a href="#2.11">§2.11</a> for a general description of coroutines.
<p>
<hr><h3><a name="pdf-coroutine.create"><code>coroutine.create (f)</code></a></h3>
<p>
Creates a new coroutine, with body <code>f</code>.
<code>f</code> must be a Lua function.
Returns this new coroutine,
an object with type <code>"thread"</code>.
<p>
<hr><h3><a name="pdf-coroutine.resume"><code>coroutine.resume (co [, val1, ···])</code></a></h3>
<p>
Starts or continues the execution of coroutine <code>co</code>.
The first time you resume a coroutine,
it starts running its body.
The values <code>val1</code>, ··· are passed
as the arguments to the body function.
If the coroutine has yielded,
<code>resume</code> restarts it;
the values <code>val1</code>, ··· are passed
as the results from the yield.
<p>
If the coroutine runs without any errors,
<code>resume</code> returns <b>true</b> plus any values passed to <code>yield</code>
(if the coroutine yields) or any values returned by the body function
(if the coroutine terminates).
If there is any error,
<code>resume</code> returns <b>false</b> plus the error message.
<p>
<hr><h3><a name="pdf-coroutine.running"><code>coroutine.running ()</code></a></h3>
<p>
Returns the running coroutine,
or <b>nil</b> when called by the main thread.
<p>
<hr><h3><a name="pdf-coroutine.status"><code>coroutine.status (co)</code></a></h3>
<p>
Returns the status of coroutine <code>co</code>, as a string:
<code>"running"</code>,
if the coroutine is running (that is, it called <code>status</code>);
<code>"suspended"</code>, if the coroutine is suspended in a call to <code>yield</code>,
or if it has not started running yet;
<code>"normal"</code> if the coroutine is active but not running
(that is, it has resumed another coroutine);
and <code>"dead"</code> if the coroutine has finished its body function,
or if it has stopped with an error.
<p>
<hr><h3><a name="pdf-coroutine.wrap"><code>coroutine.wrap (f)</code></a></h3>
<p>
Creates a new coroutine, with body <code>f</code>.
<code>f</code> must be a Lua function.
Returns a function that resumes the coroutine each time it is called.
Any arguments passed to the function behave as the
extra arguments to <code>resume</code>.
Returns the same values returned by <code>resume</code>,
except the first boolean.
In case of error, propagates the error.
<p>
<hr><h3><a name="pdf-coroutine.yield"><code>coroutine.yield (···)</code></a></h3>
<p>
Suspends the execution of the calling coroutine.
The coroutine cannot be running a C function,
a metamethod, or an iterator.
Any arguments to <code>yield</code> are passed as extra results to <code>resume</code>.
<h2>5.3 - <a name="5.3">Modules</a></h2>
<p>
The package library provides basic
facilities for loading and building modules in Lua.
It exports two of its functions directly in the global environment:
<a href="#pdf-require"><code>require</code></a> and <a href="#pdf-module"><code>module</code></a>.
Everything else is exported in a table <a name="pdf-package"><code>package</code></a>.
<p>
<hr><h3><a name="pdf-module"><code>module (name [, ···])</code></a></h3>
<p>
Creates a module.
If there is a table in <code>package.loaded[name]</code>,
this table is the module.
Otherwise, if there is a global table <code>t</code> with the given name,
this table is the module.
Otherwise creates a new table <code>t</code> and
sets it as the value of the global <code>name</code> and
the value of <code>package.loaded[name]</code>.
This function also initializes <code>t._NAME</code> with the given name,
<code>t._M</code> with the module (<code>t</code> itself),
and <code>t._PACKAGE</code> with the package name
(the full module name minus last component; see below).
Finally, <code>module</code> sets <code>t</code> as the new environment
of the current function and the new value of <code>package.loaded[name]</code>,
so that <a href="#pdf-require"><code>require</code></a> returns <code>t</code>.
<p>
If <code>name</code> is a compound name
(that is, one with components separated by dots),
<code>module</code> creates (or reuses, if they already exist)
tables for each component.
For instance, if <code>name</code> is <code>a.b.c</code>,
then <code>module</code> stores the module table in field <code>c</code> of
field <code>b</code> of global <code>a</code>.
<p>
This function can receive optional <em>options</em> after
the module name,
where each option is a function to be applied over the module.
<p>
<hr><h3><a name="pdf-require"><code>require (modname)</code></a></h3>
<p>
Loads the given module.
The function starts by looking into the <a href="#pdf-package.loaded"><code>package.loaded</code></a> table
to determine whether <code>modname</code> is already loaded.
If it is, then <code>require</code> returns the value stored
at <code>package.loaded[modname]</code>.
Otherwise, it tries to find a <em>loader</em> for the module.
<p>
To find a loader,
<code>require</code> is guided by the <a href="#pdf-package.loaders"><code>package.loaders</code></a> array.
By changing this array,
we can change how <code>require</code> looks for a module.
The following explanation is based on the default configuration
for <a href="#pdf-package.loaders"><code>package.loaders</code></a>.
<p>
First <code>require</code> queries <code>package.preload[modname]</code>.
If it has a value,
this value (which should be a function) is the loader.
Otherwise <code>require</code> searches for a Lua loader using the
path stored in <a href="#pdf-package.path"><code>package.path</code></a>.
If that also fails, it searches for a C loader using the
path stored in <a href="#pdf-package.cpath"><code>package.cpath</code></a>.
If that also fails,
it tries an <em>all-in-one</em> loader (see <a href="#pdf-package.loaders"><code>package.loaders</code></a>).
<p>
Once a loader is found,
<code>require</code> calls the loader with a single argument, <code>modname</code>.
If the loader returns any value,
<code>require</code> assigns the returned value to <code>package.loaded[modname]</code>.
If the loader returns no value and
has not assigned any value to <code>package.loaded[modname]</code>,
then <code>require</code> assigns <b>true</b> to this entry.
In any case, <code>require</code> returns the
final value of <code>package.loaded[modname]</code>.
<p>
If there is any error loading or running the module,
or if it cannot find any loader for the module,
then <code>require</code> signals an error.
<p>
<hr><h3><a name="pdf-package.cpath"><code>package.cpath</code></a></h3>
<p>
The path used by <a href="#pdf-require"><code>require</code></a> to search for a C loader.
<p>
Lua initializes the C path <a href="#pdf-package.cpath"><code>package.cpath</code></a> in the same way
it initializes the Lua path <a href="#pdf-package.path"><code>package.path</code></a>,
using the environment variable <a name="pdf-LUA_CPATH"><code>LUA_CPATH</code></a>
or a default path defined in <code>luaconf.h</code>.
<p>
<hr><h3><a name="pdf-package.loaded"><code>package.loaded</code></a></h3>
<p>
A table used by <a href="#pdf-require"><code>require</code></a> to control which
modules are already loaded.
When you require a module <code>modname</code> and
<code>package.loaded[modname]</code> is not false,
<a href="#pdf-require"><code>require</code></a> simply returns the value stored there.
<p>
<hr><h3><a name="pdf-package.loaders"><code>package.loaders</code></a></h3>
<p>
A table used by <a href="#pdf-require"><code>require</code></a> to control how to load modules.
<p>
Each entry in this table is a <em>searcher function</em>.
When looking for a module,
<a href="#pdf-require"><code>require</code></a> calls each of these searchers in ascending order,
with the module name (the argument given to <a href="#pdf-require"><code>require</code></a>) as its
sole parameter.
The function can return another function (the module <em>loader</em>)
or a string explaining why it did not find that module
(or <b>nil</b> if it has nothing to say).
Lua initializes this table with four functions.
<p>
The first searcher simply looks for a loader in the
<a href="#pdf-package.preload"><code>package.preload</code></a> table.
<p>
The second searcher looks for a loader as a Lua library,
using the path stored at <a href="#pdf-package.path"><code>package.path</code></a>.
A path is a sequence of <em>templates</em> separated by semicolons.
For each template,
the searcher will change each interrogation
mark in the template by <code>filename</code>,
which is the module name with each dot replaced by a
"directory separator" (such as "<code>/</code>" in Unix);
then it will try to open the resulting file name.
So, for instance, if the Lua path is the string
<pre>
"./?.lua;./?.lc;/usr/local/?/init.lua"
</pre><p>
the search for a Lua file for module <code>foo</code>
will try to open the files
<code>./foo.lua</code>, <code>./foo.lc</code>, and
<code>/usr/local/foo/init.lua</code>, in that order.
<p>
The third searcher looks for a loader as a C library,
using the path given by the variable <a href="#pdf-package.cpath"><code>package.cpath</code></a>.
For instance,
if the C path is the string
<pre>
"./?.so;./?.dll;/usr/local/?/init.so"
</pre><p>
the searcher for module <code>foo</code>
will try to open the files <code>./foo.so</code>, <code>./foo.dll</code>,
and <code>/usr/local/foo/init.so</code>, in that order.
Once it finds a C library,
this searcher first uses a dynamic link facility to link the
application with the library.
Then it tries to find a C function inside the library to
be used as the loader.
The name of this C function is the string "<code>luaopen_</code>"
concatenated with a copy of the module name where each dot
is replaced by an underscore.
Moreover, if the module name has a hyphen,
its prefix up to (and including) the first hyphen is removed.
For instance, if the module name is <code>a.v1-b.c</code>,
the function name will be <code>luaopen_b_c</code>.
<p>
The fourth searcher tries an <em>all-in-one loader</em>.
It searches the C path for a library for
the root name of the given module.
For instance, when requiring <code>a.b.c</code>,
it will search for a C library for <code>a</code>.
If found, it looks into it for an open function for
the submodule;
in our example, that would be <code>luaopen_a_b_c</code>.
With this facility, a package can pack several C submodules
into one single library,
with each submodule keeping its original open function.
<p>
<hr><h3><a name="pdf-package.loadlib"><code>package.loadlib (libname, funcname)</code></a></h3>
<p>
Dynamically links the host program with the C library <code>libname</code>.
Inside this library, looks for a function <code>funcname</code>
and returns this function as a C function.
(So, <code>funcname</code> must follow the protocol (see <a href="#lua_CFunction"><code>lua_CFunction</code></a>)).
<p>
This is a low-level function.
It completely bypasses the package and module system.
Unlike <a href="#pdf-require"><code>require</code></a>,
it does not perform any path searching and
does not automatically adds extensions.
<code>libname</code> must be the complete file name of the C library,
including if necessary a path and extension.
<code>funcname</code> must be the exact name exported by the C library
(which may depend on the C compiler and linker used).
<p>
This function is not supported by ANSI C.
As such, it is only available on some platforms
(Windows, Linux, Mac OS X, Solaris, BSD,
plus other Unix systems that support the <code>dlfcn</code> standard).
<p>
<hr><h3><a name="pdf-package.path"><code>package.path</code></a></h3>
<p>
The path used by <a href="#pdf-require"><code>require</code></a> to search for a Lua loader.
<p>
At start-up, Lua initializes this variable with
the value of the environment variable <a name="pdf-LUA_PATH"><code>LUA_PATH</code></a> or
with a default path defined in <code>luaconf.h</code>,
if the environment variable is not defined.
Any "<code>;;</code>" in the value of the environment variable
is replaced by the default path.
<p>
<hr><h3><a name="pdf-package.preload"><code>package.preload</code></a></h3>
<p>
A table to store loaders for specific modules
(see <a href="#pdf-require"><code>require</code></a>).
<p>
<hr><h3><a name="pdf-package.seeall"><code>package.seeall (module)</code></a></h3>
<p>
Sets a metatable for <code>module</code> with
its <code>__index</code> field referring to the global environment,
so that this module inherits values
from the global environment.
To be used as an option to function <a href="#pdf-module"><code>module</code></a>.
<h2>5.4 - <a name="5.4">String Manipulation</a></h2>
<p>
This library provides generic functions for string manipulation,
such as finding and extracting substrings, and pattern matching.
When indexing a string in Lua, the first character is at position 1
(not at 0, as in C).
Indices are allowed to be negative and are interpreted as indexing backwards,
from the end of the string.
Thus, the last character is at position -1, and so on.
<p>
The string library provides all its functions inside the table
<a name="pdf-string"><code>string</code></a>.
It also sets a metatable for strings
where the <code>__index</code> field points to the <code>string</code> table.
Therefore, you can use the string functions in object-oriented style.
For instance, <code>string.byte(s, i)</code>
can be written as <code>s:byte(i)</code>.
<p>
The string library assumes one-byte character encodings.
<p>
<hr><h3><a name="pdf-string.byte"><code>string.byte (s [, i [, j]])</code></a></h3>
Returns the internal numerical codes of the characters <code>s[i]</code>,
<code>s[i+1]</code>, ···, <code>s[j]</code>.
The default value for <code>i</code> is 1;
the default value for <code>j</code> is <code>i</code>.
<p>
Note that numerical codes are not necessarily portable across platforms.
<p>
<hr><h3><a name="pdf-string.char"><code>string.char (···)</code></a></h3>
Receives zero or more integers.
Returns a string with length equal to the number of arguments,
in which each character has the internal numerical code equal
to its corresponding argument.
<p>
Note that numerical codes are not necessarily portable across platforms.
<p>
<hr><h3><a name="pdf-string.dump"><code>string.dump (function)</code></a></h3>
<p>
Returns a string containing a binary representation of the given function,
so that a later <a href="#pdf-loadstring"><code>loadstring</code></a> on this string returns
a copy of the function.
<code>function</code> must be a Lua function without upvalues.
<p>
<hr><h3><a name="pdf-string.find"><code>string.find (s, pattern [, init [, plain]])</code></a></h3>
Looks for the first match of
<code>pattern</code> in the string <code>s</code>.
If it finds a match, then <code>find</code> returns the indices of <code>s</code>
where this occurrence starts and ends;
otherwise, it returns <b>nil</b>.
A third, optional numerical argument <code>init</code> specifies
where to start the search;
its default value is 1 and can be negative.
A value of <b>true</b> as a fourth, optional argument <code>plain</code>
turns off the pattern matching facilities,
so the function does a plain "find substring" operation,
with no characters in <code>pattern</code> being considered "magic".
Note that if <code>plain</code> is given, then <code>init</code> must be given as well.
<p>
If the pattern has captures,
then in a successful match
the captured values are also returned,
after the two indices.
<p>
<hr><h3><a name="pdf-string.format"><code>string.format (formatstring, ···)</code></a></h3>
Returns a formatted version of its variable number of arguments
following the description given in its first argument (which must be a string).
The format string follows the same rules as the <code>printf</code> family of
standard C functions.
The only differences are that the options/modifiers
<code>*</code>, <code>l</code>, <code>L</code>, <code>n</code>, <code>p</code>,
and <code>h</code> are not supported
and that there is an extra option, <code>q</code>.
The <code>q</code> option formats a string in a form suitable to be safely read
back by the Lua interpreter:
the string is written between double quotes,
and all double quotes, newlines, embedded zeros,
and backslashes in the string
are correctly escaped when written.
For instance, the call
<pre>
string.format('%q', 'a string with "quotes" and \n new line')
</pre><p>
will produce the string:
<pre>
"a string with \"quotes\" and \
new line"
</pre>
<p>
The options <code>c</code>, <code>d</code>, <code>E</code>, <code>e</code>, <code>f</code>,
<code>g</code>, <code>G</code>, <code>i</code>, <code>o</code>, <code>u</code>, <code>X</code>, and <code>x</code> all
expect a number as argument,
whereas <code>q</code> and <code>s</code> expect a string.
<p>
This function does not accept string values
containing embedded zeros,
except as arguments to the <code>q</code> option.
<p>
<hr><h3><a name="pdf-string.gmatch"><code>string.gmatch (s, pattern)</code></a></h3>
Returns an iterator function that,
each time it is called,
returns the next captures from <code>pattern</code> over string <code>s</code>.
If <code>pattern</code> specifies no captures,
then the whole match is produced in each call.
<p>
As an example, the following loop
<pre>
s = "hello world from Lua"
for w in string.gmatch(s, "%a+") do
print(w)
end
</pre><p>
will iterate over all the words from string <code>s</code>,
printing one per line.
The next example collects all pairs <code>key=value</code> from the
given string into a table:
<pre>
t = {}
s = "from=world, to=Lua"
for k, v in string.gmatch(s, "(%w+)=(%w+)") do
t[k] = v
end
</pre>
<p>
For this function, a '<code>^</code>' at the start of a pattern does not
work as an anchor, as this would prevent the iteration.
<p>
<hr><h3><a name="pdf-string.gsub"><code>string.gsub (s, pattern, repl [, n])</code></a></h3>
Returns a copy of <code>s</code>
in which all (or the first <code>n</code>, if given)
occurrences of the <code>pattern</code> have been
replaced by a replacement string specified by <code>repl</code>,
which can be a string, a table, or a function.
<code>gsub</code> also returns, as its second value,
the total number of matches that occurred.
<p>
If <code>repl</code> is a string, then its value is used for replacement.
The character <code>%</code> works as an escape character:
any sequence in <code>repl</code> of the form <code>%<em>n</em></code>,
with <em>n</em> between 1 and 9,
stands for the value of the <em>n</em>-th captured substring (see below).
The sequence <code>%0</code> stands for the whole match.
The sequence <code>%%</code> stands for a single <code>%</code>.
<p>
If <code>repl</code> is a table, then the table is queried for every match,
using the first capture as the key;
if the pattern specifies no captures,
then the whole match is used as the key.
<p>
If <code>repl</code> is a function, then this function is called every time a
match occurs, with all captured substrings passed as arguments,
in order;
if the pattern specifies no captures,
then the whole match is passed as a sole argument.
<p>
If the value returned by the table query or by the function call
is a string or a number,
then it is used as the replacement string;
otherwise, if it is <b>false</b> or <b>nil</b>,
then there is no replacement
(that is, the original match is kept in the string).
<p>
Here are some examples:
<pre>
x = string.gsub("hello world", "(%w+)", "%1 %1")
--> x="hello hello world world"
x = string.gsub("hello world", "%w+", "%0 %0", 1)
--> x="hello hello world"
x = string.gsub("hello world from Lua", "(%w+)%s*(%w+)", "%2 %1")
--> x="world hello Lua from"
x = string.gsub("home = $HOME, user = $USER", "%$(%w+)", os.getenv)
--> x="home = /home/roberto, user = roberto"
x = string.gsub("4+5 = $return 4+5$", "%$(.-)%$", function (s)
return loadstring(s)()
end)
--> x="4+5 = 9"
local t = {name="lua", version="5.1"}
x = string.gsub("$name-$version.tar.gz", "%$(%w+)", t)
--> x="lua-5.1.tar.gz"
</pre>
<p>
<hr><h3><a name="pdf-string.len"><code>string.len (s)</code></a></h3>
Receives a string and returns its length.
The empty string <code>""</code> has length 0.
Embedded zeros are counted,
so <code>"a\000bc\000"</code> has length 5.
<p>
<hr><h3><a name="pdf-string.lower"><code>string.lower (s)</code></a></h3>
Receives a string and returns a copy of this string with all
uppercase letters changed to lowercase.
All other characters are left unchanged.
The definition of what an uppercase letter is depends on the current locale.
<p>
<hr><h3><a name="pdf-string.match"><code>string.match (s, pattern [, init])</code></a></h3>
Looks for the first <em>match</em> of
<code>pattern</code> in the string <code>s</code>.
If it finds one, then <code>match</code> returns
the captures from the pattern;
otherwise it returns <b>nil</b>.
If <code>pattern</code> specifies no captures,
then the whole match is returned.
A third, optional numerical argument <code>init</code> specifies
where to start the search;
its default value is 1 and can be negative.
<p>
<hr><h3><a name="pdf-string.rep"><code>string.rep (s, n)</code></a></h3>
Returns a string that is the concatenation of <code>n</code> copies of
the string <code>s</code>.
<p>
<hr><h3><a name="pdf-string.reverse"><code>string.reverse (s)</code></a></h3>
Returns a string that is the string <code>s</code> reversed.
<p>
<hr><h3><a name="pdf-string.sub"><code>string.sub (s, i [, j])</code></a></h3>
Returns the substring of <code>s</code> that
starts at <code>i</code> and continues until <code>j</code>;
<code>i</code> and <code>j</code> can be negative.
If <code>j</code> is absent, then it is assumed to be equal to -1
(which is the same as the string length).
In particular,
the call <code>string.sub(s,1,j)</code> returns a prefix of <code>s</code>
with length <code>j</code>,
and <code>string.sub(s, -i)</code> returns a suffix of <code>s</code>
with length <code>i</code>.
<p>
<hr><h3><a name="pdf-string.upper"><code>string.upper (s)</code></a></h3>
Receives a string and returns a copy of this string with all
lowercase letters changed to uppercase.
All other characters are left unchanged.
The definition of what a lowercase letter is depends on the current locale.
<h3>5.4.1 - <a name="5.4.1">Patterns</a></h3>
<h4>Character Class:</h4><p>
A <em>character class</em> is used to represent a set of characters.
The following combinations are allowed in describing a character class:
<ul>
<li><b><em>x</em>:</b>
(where <em>x</em> is not one of the <em>magic characters</em>
<code>^$()%.[]*+-?</code>)
represents the character <em>x</em> itself.
</li>
<li><b><code>.</code>:</b> (a dot) represents all characters.</li>
<li><b><code>%a</code>:</b> represents all letters.</li>
<li><b><code>%c</code>:</b> represents all control characters.</li>
<li><b><code>%d</code>:</b> represents all digits.</li>
<li><b><code>%l</code>:</b> represents all lowercase letters.</li>
<li><b><code>%p</code>:</b> represents all punctuation characters.</li>
<li><b><code>%s</code>:</b> represents all space characters.</li>
<li><b><code>%u</code>:</b> represents all uppercase letters.</li>
<li><b><code>%w</code>:</b> represents all alphanumeric characters.</li>
<li><b><code>%x</code>:</b> represents all hexadecimal digits.</li>
<li><b><code>%z</code>:</b> represents the character with representation 0.</li>
<li><b><code>%<em>x</em></code>:</b> (where <em>x</em> is any non-alphanumeric character)
represents the character <em>x</em>.
This is the standard way to escape the magic characters.
Any punctuation character (even the non magic)
can be preceded by a '<code>%</code>'
when used to represent itself in a pattern.
</li>
<li><b><code>[<em>set</em>]</code>:</b>
represents the class which is the union of all
characters in <em>set</em>.
A range of characters can be specified by
separating the end characters of the range with a '<code>-</code>'.
All classes <code>%</code><em>x</em> described above can also be used as
components in <em>set</em>.
All other characters in <em>set</em> represent themselves.
For example, <code>[%w_]</code> (or <code>[_%w]</code>)
represents all alphanumeric characters plus the underscore,
<code>[0-7]</code> represents the octal digits,
and <code>[0-7%l%-]</code> represents the octal digits plus
the lowercase letters plus the '<code>-</code>' character.
<p>
The interaction between ranges and classes is not defined.
Therefore, patterns like <code>[%a-z]</code> or <code>[a-%%]</code>
have no meaning.
</li>
<li><b><code>[^<em>set</em>]</code>:</b>
represents the complement of <em>set</em>,
where <em>set</em> is interpreted as above.
</li>
</ul><p>
For all classes represented by single letters (<code>%a</code>, <code>%c</code>, etc.),
the corresponding uppercase letter represents the complement of the class.
For instance, <code>%S</code> represents all non-space characters.
<p>
The definitions of letter, space, and other character groups
depend on the current locale.
In particular, the class <code>[a-z]</code> may not be equivalent to <code>%l</code>.
<h4>Pattern Item:</h4><p>
A <em>pattern item</em> can be
<ul>
<li>
a single character class,
which matches any single character in the class;
</li>
<li>
a single character class followed by '<code>*</code>',
which matches 0 or more repetitions of characters in the class.
These repetition items will always match the longest possible sequence;
</li>
<li>
a single character class followed by '<code>+</code>',
which matches 1 or more repetitions of characters in the class.
These repetition items will always match the longest possible sequence;
</li>
<li>
a single character class followed by '<code>-</code>',
which also matches 0 or more repetitions of characters in the class.
Unlike '<code>*</code>',
these repetition items will always match the <em>shortest</em> possible sequence;
</li>
<li>
a single character class followed by '<code>?</code>',
which matches 0 or 1 occurrence of a character in the class;
</li>
<li>
<code>%<em>n</em></code>, for <em>n</em> between 1 and 9;
such item matches a substring equal to the <em>n</em>-th captured string
(see below);
</li>
<li>
<code>%b<em>xy</em></code>, where <em>x</em> and <em>y</em> are two distinct characters;
such item matches strings that start with <em>x</em>, end with <em>y</em>,
and where the <em>x</em> and <em>y</em> are <em>balanced</em>.
This means that, if one reads the string from left to right,
counting <em>+1</em> for an <em>x</em> and <em>-1</em> for a <em>y</em>,
the ending <em>y</em> is the first <em>y</em> where the count reaches 0.
For instance, the item <code>%b()</code> matches expressions with
balanced parentheses.
</li>
</ul>
<h4>Pattern:</h4><p>
A <em>pattern</em> is a sequence of pattern items.
A '<code>^</code>' at the beginning of a pattern anchors the match at the
beginning of the subject string.
A '<code>$</code>' at the end of a pattern anchors the match at the
end of the subject string.
At other positions,
'<code>^</code>' and '<code>$</code>' have no special meaning and represent themselves.
<h4>Captures:</h4><p>
A pattern can contain sub-patterns enclosed in parentheses;
they describe <em>captures</em>.
When a match succeeds, the substrings of the subject string
that match captures are stored (<em>captured</em>) for future use.
Captures are numbered according to their left parentheses.
For instance, in the pattern <code>"(a*(.)%w(%s*))"</code>,
the part of the string matching <code>"a*(.)%w(%s*)"</code> is
stored as the first capture (and therefore has number 1);
the character matching "<code>.</code>" is captured with number 2,
and the part matching "<code>%s*</code>" has number 3.
<p>
As a special case, the empty capture <code>()</code> captures
the current string position (a number).
For instance, if we apply the pattern <code>"()aa()"</code> on the
string <code>"flaaap"</code>, there will be two captures: 3 and 5.
<p>
A pattern cannot contain embedded zeros. Use <code>%z</code> instead.
<h2>5.5 - <a name="5.5">Table Manipulation</a></h2><p>
This library provides generic functions for table manipulation.
It provides all its functions inside the table <a name="pdf-table"><code>table</code></a>.
<p>
Most functions in the table library assume that the table
represents an array or a list.
For these functions, when we talk about the "length" of a table
we mean the result of the length operator.
<p>
<hr><h3><a name="pdf-table.concat"><code>table.concat (table [, sep [, i [, j]]])</code></a></h3>
Given an array where all elements are strings or numbers,
returns <code>table[i]..sep..table[i+1] ··· sep..table[j]</code>.
The default value for <code>sep</code> is the empty string,
the default for <code>i</code> is 1,
and the default for <code>j</code> is the length of the table.
If <code>i</code> is greater than <code>j</code>, returns the empty string.
<p>
<hr><h3><a name="pdf-table.insert"><code>table.insert (table, [pos,] value)</code></a></h3>
<p>
Inserts element <code>value</code> at position <code>pos</code> in <code>table</code>,
shifting up other elements to open space, if necessary.
The default value for <code>pos</code> is <code>n+1</code>,
where <code>n</code> is the length of the table (see <a href="#2.5.5">§2.5.5</a>),
so that a call <code>table.insert(t,x)</code> inserts <code>x</code> at the end
of table <code>t</code>.
<p>
<hr><h3><a name="pdf-table.maxn"><code>table.maxn (table)</code></a></h3>
<p>
Returns the largest positive numerical index of the given table,
or zero if the table has no positive numerical indices.
(To do its job this function does a linear traversal of
the whole table.)
<p>
<hr><h3><a name="pdf-table.remove"><code>table.remove (table [, pos])</code></a></h3>
<p>
Removes from <code>table</code> the element at position <code>pos</code>,
shifting down other elements to close the space, if necessary.
Returns the value of the removed element.
The default value for <code>pos</code> is <code>n</code>,
where <code>n</code> is the length of the table,
so that a call <code>table.remove(t)</code> removes the last element
of table <code>t</code>.
<p>
<hr><h3><a name="pdf-table.sort"><code>table.sort (table [, comp])</code></a></h3>
Sorts table elements in a given order, <em>in-place</em>,
from <code>table[1]</code> to <code>table[n]</code>,
where <code>n</code> is the length of the table.
If <code>comp</code> is given,
then it must be a function that receives two table elements,
and returns true
when the first is less than the second
(so that <code>not comp(a[i+1],a[i])</code> will be true after the sort).
If <code>comp</code> is not given,
then the standard Lua operator <code><</code> is used instead.
<p>
The sort algorithm is not stable;
that is, elements considered equal by the given order
may have their relative positions changed by the sort.
<h2>5.6 - <a name="5.6">Mathematical Functions</a></h2>
<p>
This library is an interface to the standard C math library.
It provides all its functions inside the table <a name="pdf-math"><code>math</code></a>.
<p>
<hr><h3><a name="pdf-math.abs"><code>math.abs (x)</code></a></h3>
<p>
Returns the absolute value of <code>x</code>.
<p>
<hr><h3><a name="pdf-math.acos"><code>math.acos (x)</code></a></h3>
<p>
Returns the arc cosine of <code>x</code> (in radians).
<p>
<hr><h3><a name="pdf-math.asin"><code>math.asin (x)</code></a></h3>
<p>
Returns the arc sine of <code>x</code> (in radians).
<p>
<hr><h3><a name="pdf-math.atan"><code>math.atan (x)</code></a></h3>
<p>
Returns the arc tangent of <code>x</code> (in radians).
<p>
<hr><h3><a name="pdf-math.atan2"><code>math.atan2 (y, x)</code></a></h3>
<p>
Returns the arc tangent of <code>y/x</code> (in radians),
but uses the signs of both parameters to find the
quadrant of the result.
(It also handles correctly the case of <code>x</code> being zero.)
<p>
<hr><h3><a name="pdf-math.ceil"><code>math.ceil (x)</code></a></h3>
<p>
Returns the smallest integer larger than or equal to <code>x</code>.
<p>
<hr><h3><a name="pdf-math.cos"><code>math.cos (x)</code></a></h3>
<p>
Returns the cosine of <code>x</code> (assumed to be in radians).
<p>
<hr><h3><a name="pdf-math.cosh"><code>math.cosh (x)</code></a></h3>
<p>
Returns the hyperbolic cosine of <code>x</code>.
<p>
<hr><h3><a name="pdf-math.deg"><code>math.deg (x)</code></a></h3>
<p>
Returns the angle <code>x</code> (given in radians) in degrees.
<p>
<hr><h3><a name="pdf-math.exp"><code>math.exp (x)</code></a></h3>
<p>
Returns the value <em>e<sup>x</sup></em>.
<p>
<hr><h3><a name="pdf-math.floor"><code>math.floor (x)</code></a></h3>
<p>
Returns the largest integer smaller than or equal to <code>x</code>.
<p>
<hr><h3><a name="pdf-math.fmod"><code>math.fmod (x, y)</code></a></h3>
<p>
Returns the remainder of the division of <code>x</code> by <code>y</code>
that rounds the quotient towards zero.
<p>
<hr><h3><a name="pdf-math.frexp"><code>math.frexp (x)</code></a></h3>
<p>
Returns <code>m</code> and <code>e</code> such that <em>x = m2<sup>e</sup></em>,
<code>e</code> is an integer and the absolute value of <code>m</code> is
in the range <em>[0.5, 1)</em>
(or zero when <code>x</code> is zero).
<p>
<hr><h3><a name="pdf-math.huge"><code>math.huge</code></a></h3>
<p>
The value <code>HUGE_VAL</code>,
a value larger than or equal to any other numerical value.
<p>
<hr><h3><a name="pdf-math.ldexp"><code>math.ldexp (m, e)</code></a></h3>
<p>
Returns <em>m2<sup>e</sup></em> (<code>e</code> should be an integer).
<p>
<hr><h3><a name="pdf-math.log"><code>math.log (x)</code></a></h3>
<p>
Returns the natural logarithm of <code>x</code>.
<p>
<hr><h3><a name="pdf-math.log10"><code>math.log10 (x)</code></a></h3>
<p>
Returns the base-10 logarithm of <code>x</code>.
<p>
<hr><h3><a name="pdf-math.max"><code>math.max (x, ···)</code></a></h3>
<p>
Returns the maximum value among its arguments.
<p>
<hr><h3><a name="pdf-math.min"><code>math.min (x, ···)</code></a></h3>
<p>
Returns the minimum value among its arguments.
<p>
<hr><h3><a name="pdf-math.modf"><code>math.modf (x)</code></a></h3>
<p>
Returns two numbers,
the integral part of <code>x</code> and the fractional part of <code>x</code>.
<p>
<hr><h3><a name="pdf-math.pi"><code>math.pi</code></a></h3>
<p>
The value of <em>pi</em>.
<p>
<hr><h3><a name="pdf-math.pow"><code>math.pow (x, y)</code></a></h3>
<p>
Returns <em>x<sup>y</sup></em>.
(You can also use the expression <code>x^y</code> to compute this value.)
<p>
<hr><h3><a name="pdf-math.rad"><code>math.rad (x)</code></a></h3>
<p>
Returns the angle <code>x</code> (given in degrees) in radians.
<p>
<hr><h3><a name="pdf-math.random"><code>math.random ([m [, n]])</code></a></h3>
<p>
This function is an interface to the simple
pseudo-random generator function <code>rand</code> provided by ANSI C.
(No guarantees can be given for its statistical properties.)
<p>
When called without arguments,
returns a uniform pseudo-random real number
in the range <em>[0,1)</em>.
When called with an integer number <code>m</code>,
<code>math.random</code> returns
a uniform pseudo-random integer in the range <em>[1, m]</em>.
When called with two integer numbers <code>m</code> and <code>n</code>,
<code>math.random</code> returns a uniform pseudo-random
integer in the range <em>[m, n]</em>.
<p>
<hr><h3><a name="pdf-math.randomseed"><code>math.randomseed (x)</code></a></h3>
<p>
Sets <code>x</code> as the "seed"
for the pseudo-random generator:
equal seeds produce equal sequences of numbers.
<p>
<hr><h3><a name="pdf-math.sin"><code>math.sin (x)</code></a></h3>
<p>
Returns the sine of <code>x</code> (assumed to be in radians).
<p>
<hr><h3><a name="pdf-math.sinh"><code>math.sinh (x)</code></a></h3>
<p>
Returns the hyperbolic sine of <code>x</code>.
<p>
<hr><h3><a name="pdf-math.sqrt"><code>math.sqrt (x)</code></a></h3>
<p>
Returns the square root of <code>x</code>.
(You can also use the expression <code>x^0.5</code> to compute this value.)
<p>
<hr><h3><a name="pdf-math.tan"><code>math.tan (x)</code></a></h3>
<p>
Returns the tangent of <code>x</code> (assumed to be in radians).
<p>
<hr><h3><a name="pdf-math.tanh"><code>math.tanh (x)</code></a></h3>
<p>
Returns the hyperbolic tangent of <code>x</code>.
<h2>5.7 - <a name="5.7">Input and Output Facilities</a></h2>
<p>
The I/O library provides two different styles for file manipulation.
The first one uses implicit file descriptors;
that is, there are operations to set a default input file and a
default output file,
and all input/output operations are over these default files.
The second style uses explicit file descriptors.
<p>
When using implicit file descriptors,
all operations are supplied by table <a name="pdf-io"><code>io</code></a>.
When using explicit file descriptors,
the operation <a href="#pdf-io.open"><code>io.open</code></a> returns a file descriptor
and then all operations are supplied as methods of the file descriptor.
<p>
The table <code>io</code> also provides
three predefined file descriptors with their usual meanings from C:
<a name="pdf-io.stdin"><code>io.stdin</code></a>, <a name="pdf-io.stdout"><code>io.stdout</code></a>, and <a name="pdf-io.stderr"><code>io.stderr</code></a>.
The I/O library never closes these files.
<p>
Unless otherwise stated,
all I/O functions return <b>nil</b> on failure
(plus an error message as a second result and
a system-dependent error code as a third result)
and some value different from <b>nil</b> on success.
<p>
<hr><h3><a name="pdf-io.close"><code>io.close ([file])</code></a></h3>
<p>
Equivalent to <code>file:close()</code>.
Without a <code>file</code>, closes the default output file.
<p>
<hr><h3><a name="pdf-io.flush"><code>io.flush ()</code></a></h3>
<p>
Equivalent to <code>file:flush</code> over the default output file.
<p>
<hr><h3><a name="pdf-io.input"><code>io.input ([file])</code></a></h3>
<p>
When called with a file name, it opens the named file (in text mode),
and sets its handle as the default input file.
When called with a file handle,
it simply sets this file handle as the default input file.
When called without parameters,
it returns the current default input file.
<p>
In case of errors this function raises the error,
instead of returning an error code.
<p>
<hr><h3><a name="pdf-io.lines"><code>io.lines ([filename])</code></a></h3>
<p>
Opens the given file name in read mode
and returns an iterator function that,
each time it is called,
returns a new line from the file.
Therefore, the construction
<pre>
for line in io.lines(filename) do <em>body</em> end
</pre><p>
will iterate over all lines of the file.
When the iterator function detects the end of file,
it returns <b>nil</b> (to finish the loop) and automatically closes the file.
<p>
The call <code>io.lines()</code> (with no file name) is equivalent
to <code>io.input():lines()</code>;
that is, it iterates over the lines of the default input file.
In this case it does not close the file when the loop ends.
<p>
<hr><h3><a name="pdf-io.open"><code>io.open (filename [, mode])</code></a></h3>
<p>
This function opens a file,
in the mode specified in the string <code>mode</code>.
It returns a new file handle,
or, in case of errors, <b>nil</b> plus an error message.
<p>
The <code>mode</code> string can be any of the following:
<ul>
<li><b>"r":</b> read mode (the default);</li>
<li><b>"w":</b> write mode;</li>
<li><b>"a":</b> append mode;</li>
<li><b>"r+":</b> update mode, all previous data is preserved;</li>
<li><b>"w+":</b> update mode, all previous data is erased;</li>
<li><b>"a+":</b> append update mode, previous data is preserved,
writing is only allowed at the end of file.</li>
</ul><p>
The <code>mode</code> string can also have a '<code>b</code>' at the end,
which is needed in some systems to open the file in binary mode.
This string is exactly what is used in the
standard C function <code>fopen</code>.
<p>
<hr><h3><a name="pdf-io.output"><code>io.output ([file])</code></a></h3>
<p>
Similar to <a href="#pdf-io.input"><code>io.input</code></a>, but operates over the default output file.
<p>
<hr><h3><a name="pdf-io.popen"><code>io.popen (prog [, mode])</code></a></h3>
<p>
Starts program <code>prog</code> in a separated process and returns
a file handle that you can use to read data from this program
(if <code>mode</code> is <code>"r"</code>, the default)
or to write data to this program
(if <code>mode</code> is <code>"w"</code>).
<p>
This function is system dependent and is not available
on all platforms.
<p>
<hr><h3><a name="pdf-io.read"><code>io.read (···)</code></a></h3>
<p>
Equivalent to <code>io.input():read</code>.
<p>
<hr><h3><a name="pdf-io.tmpfile"><code>io.tmpfile ()</code></a></h3>
<p>
Returns a handle for a temporary file.
This file is opened in update mode
and it is automatically removed when the program ends.
<p>
<hr><h3><a name="pdf-io.type"><code>io.type (obj)</code></a></h3>
<p>
Checks whether <code>obj</code> is a valid file handle.
Returns the string <code>"file"</code> if <code>obj</code> is an open file handle,
<code>"closed file"</code> if <code>obj</code> is a closed file handle,
or <b>nil</b> if <code>obj</code> is not a file handle.
<p>
<hr><h3><a name="pdf-io.write"><code>io.write (···)</code></a></h3>
<p>
Equivalent to <code>io.output():write</code>.
<p>
<hr><h3><a name="pdf-file:close"><code>file:close ()</code></a></h3>
<p>
Closes <code>file</code>.
Note that files are automatically closed when
their handles are garbage collected,
but that takes an unpredictable amount of time to happen.
<p>
<hr><h3><a name="pdf-file:flush"><code>file:flush ()</code></a></h3>
<p>
Saves any written data to <code>file</code>.
<p>
<hr><h3><a name="pdf-file:lines"><code>file:lines ()</code></a></h3>
<p>
Returns an iterator function that,
each time it is called,
returns a new line from the file.
Therefore, the construction
<pre>
for line in file:lines() do <em>body</em> end
</pre><p>
will iterate over all lines of the file.
(Unlike <a href="#pdf-io.lines"><code>io.lines</code></a>, this function does not close the file
when the loop ends.)
<p>
<hr><h3><a name="pdf-file:read"><code>file:read (···)</code></a></h3>
<p>
Reads the file <code>file</code>,
according to the given formats, which specify what to read.
For each format,
the function returns a string (or a number) with the characters read,
or <b>nil</b> if it cannot read data with the specified format.
When called without formats,
it uses a default format that reads the entire next line
(see below).
<p>
The available formats are
<ul>
<li><b>"*n":</b>
reads a number;
this is the only format that returns a number instead of a string.
</li>
<li><b>"*a":</b>
reads the whole file, starting at the current position.
On end of file, it returns the empty string.
</li>
<li><b>"*l":</b>
reads the next line (skipping the end of line),
returning <b>nil</b> on end of file.
This is the default format.
</li>
<li><b><em>number</em>:</b>
reads a string with up to this number of characters,
returning <b>nil</b> on end of file.
If number is zero,
it reads nothing and returns an empty string,
or <b>nil</b> on end of file.
</li>
</ul>
<p>
<hr><h3><a name="pdf-file:seek"><code>file:seek ([whence] [, offset])</code></a></h3>
<p>
Sets and gets the file position,
measured from the beginning of the file,
to the position given by <code>offset</code> plus a base
specified by the string <code>whence</code>, as follows:
<ul>
<li><b>"set":</b> base is position 0 (beginning of the file);</li>
<li><b>"cur":</b> base is current position;</li>
<li><b>"end":</b> base is end of file;</li>
</ul><p>
In case of success, function <code>seek</code> returns the final file position,
measured in bytes from the beginning of the file.
If this function fails, it returns <b>nil</b>,
plus a string describing the error.
<p>
The default value for <code>whence</code> is <code>"cur"</code>,
and for <code>offset</code> is 0.
Therefore, the call <code>file:seek()</code> returns the current
file position, without changing it;
the call <code>file:seek("set")</code> sets the position to the
beginning of the file (and returns 0);
and the call <code>file:seek("end")</code> sets the position to the
end of the file, and returns its size.
<p>
<hr><h3><a name="pdf-file:setvbuf"><code>file:setvbuf (mode [, size])</code></a></h3>
<p>
Sets the buffering mode for an output file.
There are three available modes:
<ul>
<li><b>"no":</b>
no buffering; the result of any output operation appears immediately.
</li>
<li><b>"full":</b>
full buffering; output operation is performed only
when the buffer is full (or when you explicitly <code>flush</code> the file
(see <a href="#pdf-io.flush"><code>io.flush</code></a>)).
</li>
<li><b>"line":</b>
line buffering; output is buffered until a newline is output
or there is any input from some special files
(such as a terminal device).
</li>
</ul><p>
For the last two cases, <code>size</code>
specifies the size of the buffer, in bytes.
The default is an appropriate size.
<p>
<hr><h3><a name="pdf-file:write"><code>file:write (···)</code></a></h3>
<p>
Writes the value of each of its arguments to
the <code>file</code>.
The arguments must be strings or numbers.
To write other values,
use <a href="#pdf-tostring"><code>tostring</code></a> or <a href="#pdf-string.format"><code>string.format</code></a> before <code>write</code>.
<h2>5.8 - <a name="5.8">Operating System Facilities</a></h2>
<p>
This library is implemented through table <a name="pdf-os"><code>os</code></a>.
<p>
<hr><h3><a name="pdf-os.clock"><code>os.clock ()</code></a></h3>
<p>
Returns an approximation of the amount in seconds of CPU time
used by the program.
<p>
<hr><h3><a name="pdf-os.date"><code>os.date ([format [, time]])</code></a></h3>
<p>
Returns a string or a table containing date and time,
formatted according to the given string <code>format</code>.
<p>
If the <code>time</code> argument is present,
this is the time to be formatted
(see the <a href="#pdf-os.time"><code>os.time</code></a> function for a description of this value).
Otherwise, <code>date</code> formats the current time.
<p>
If <code>format</code> starts with '<code>!</code>',
then the date is formatted in Coordinated Universal Time.
After this optional character,
if <code>format</code> is the string "<code>*t</code>",
then <code>date</code> returns a table with the following fields:
<code>year</code> (four digits), <code>month</code> (1--12), <code>day</code> (1--31),
<code>hour</code> (0--23), <code>min</code> (0--59), <code>sec</code> (0--61),
<code>wday</code> (weekday, Sunday is 1),
<code>yday</code> (day of the year),
and <code>isdst</code> (daylight saving flag, a boolean).
<p>
If <code>format</code> is not "<code>*t</code>",
then <code>date</code> returns the date as a string,
formatted according to the same rules as the C function <code>strftime</code>.
<p>
When called without arguments,
<code>date</code> returns a reasonable date and time representation that depends on
the host system and on the current locale
(that is, <code>os.date()</code> is equivalent to <code>os.date("%c")</code>).
<p>
<hr><h3><a name="pdf-os.difftime"><code>os.difftime (t2, t1)</code></a></h3>
<p>
Returns the number of seconds from time <code>t1</code> to time <code>t2</code>.
In POSIX, Windows, and some other systems,
this value is exactly <code>t2</code><em>-</em><code>t1</code>.
<p>
<hr><h3><a name="pdf-os.execute"><code>os.execute ([command])</code></a></h3>
<p>
This function is equivalent to the C function <code>system</code>.
It passes <code>command</code> to be executed by an operating system shell.
It returns a status code, which is system-dependent.
If <code>command</code> is absent, then it returns nonzero if a shell is available
and zero otherwise.
<p>
<hr><h3><a name="pdf-os.exit"><code>os.exit ([code])</code></a></h3>
<p>
Calls the C function <code>exit</code>,
with an optional <code>code</code>,
to terminate the host program.
The default value for <code>code</code> is the success code.
<p>
<hr><h3><a name="pdf-os.getenv"><code>os.getenv (varname)</code></a></h3>
<p>
Returns the value of the process environment variable <code>varname</code>,
or <b>nil</b> if the variable is not defined.
<p>
<hr><h3><a name="pdf-os.remove"><code>os.remove (filename)</code></a></h3>
<p>
Deletes the file or directory with the given name.
Directories must be empty to be removed.
If this function fails, it returns <b>nil</b>,
plus a string describing the error.
<p>
<hr><h3><a name="pdf-os.rename"><code>os.rename (oldname, newname)</code></a></h3>
<p>
Renames file or directory named <code>oldname</code> to <code>newname</code>.
If this function fails, it returns <b>nil</b>,
plus a string describing the error.
<p>
<hr><h3><a name="pdf-os.setlocale"><code>os.setlocale (locale [, category])</code></a></h3>
<p>
Sets the current locale of the program.
<code>locale</code> is a string specifying a locale;
<code>category</code> is an optional string describing which category to change:
<code>"all"</code>, <code>"collate"</code>, <code>"ctype"</code>,
<code>"monetary"</code>, <code>"numeric"</code>, or <code>"time"</code>;
the default category is <code>"all"</code>.
The function returns the name of the new locale,
or <b>nil</b> if the request cannot be honored.
<p>
If <code>locale</code> is the empty string,
the current locale is set to an implementation-defined native locale.
If <code>locale</code> is the string "<code>C</code>",
the current locale is set to the standard C locale.
<p>
When called with <b>nil</b> as the first argument,
this function only returns the name of the current locale
for the given category.
<p>
<hr><h3><a name="pdf-os.time"><code>os.time ([table])</code></a></h3>
<p>
Returns the current time when called without arguments,
or a time representing the date and time specified by the given table.
This table must have fields <code>year</code>, <code>month</code>, and <code>day</code>,
and may have fields <code>hour</code>, <code>min</code>, <code>sec</code>, and <code>isdst</code>
(for a description of these fields, see the <a href="#pdf-os.date"><code>os.date</code></a> function).
<p>
The returned value is a number, whose meaning depends on your system.
In POSIX, Windows, and some other systems, this number counts the number
of seconds since some given start time (the "epoch").
In other systems, the meaning is not specified,
and the number returned by <code>time</code> can be used only as an argument to
<code>date</code> and <code>difftime</code>.
<p>
<hr><h3><a name="pdf-os.tmpname"><code>os.tmpname ()</code></a></h3>
<p>
Returns a string with a file name that can
be used for a temporary file.
The file must be explicitly opened before its use
and explicitly removed when no longer needed.
<p>
On some systems (POSIX),
this function also creates a file with that name,
to avoid security risks.
(Someone else might create the file with wrong permissions
in the time between getting the name and creating the file.)
You still have to open the file to use it
and to remove it (even if you do not use it).
<p>
When possible,
you may prefer to use <a href="#pdf-io.tmpfile"><code>io.tmpfile</code></a>,
which automatically removes the file when the program ends.
<h2>5.9 - <a name="5.9">The Debug Library</a></h2>
<p>
This library provides
the functionality of the debug interface to Lua programs.
You should exert care when using this library.
The functions provided here should be used exclusively for debugging
and similar tasks, such as profiling.
Please resist the temptation to use them as a
usual programming tool:
they can be very slow.
Moreover, several of these functions
violate some assumptions about Lua code
(e.g., that variables local to a function
cannot be accessed from outside or
that userdata metatables cannot be changed by Lua code)
and therefore can compromise otherwise secure code.
<p>
All functions in this library are provided
inside the <a name="pdf-debug"><code>debug</code></a> table.
All functions that operate over a thread
have an optional first argument which is the
thread to operate over.
The default is always the current thread.
<p>
<hr><h3><a name="pdf-debug.debug"><code>debug.debug ()</code></a></h3>
<p>
Enters an interactive mode with the user,
running each string that the user enters.
Using simple commands and other debug facilities,
the user can inspect global and local variables,
change their values, evaluate expressions, and so on.
A line containing only the word <code>cont</code> finishes this function,
so that the caller continues its execution.
<p>
Note that commands for <code>debug.debug</code> are not lexically nested
within any function, and so have no direct access to local variables.
<p>
<hr><h3><a name="pdf-debug.getfenv"><code>debug.getfenv (o)</code></a></h3>
Returns the environment of object <code>o</code>.
<p>
<hr><h3><a name="pdf-debug.gethook"><code>debug.gethook ([thread])</code></a></h3>
<p>
Returns the current hook settings of the thread, as three values:
the current hook function, the current hook mask,
and the current hook count
(as set by the <a href="#pdf-debug.sethook"><code>debug.sethook</code></a> function).
<p>
<hr><h3><a name="pdf-debug.getinfo"><code>debug.getinfo ([thread,] function [, what])</code></a></h3>
<p>
Returns a table with information about a function.
You can give the function directly,
or you can give a number as the value of <code>function</code>,
which means the function running at level <code>function</code> of the call stack
of the given thread:
level 0 is the current function (<code>getinfo</code> itself);
level 1 is the function that called <code>getinfo</code>;
and so on.
If <code>function</code> is a number larger than the number of active functions,
then <code>getinfo</code> returns <b>nil</b>.
<p>
The returned table can contain all the fields returned by <a href="#lua_getinfo"><code>lua_getinfo</code></a>,
with the string <code>what</code> describing which fields to fill in.
The default for <code>what</code> is to get all information available,
except the table of valid lines.
If present,
the option '<code>f</code>'
adds a field named <code>func</code> with the function itself.
If present,
the option '<code>L</code>'
adds a field named <code>activelines</code> with the table of
valid lines.
<p>
For instance, the expression <code>debug.getinfo(1,"n").name</code> returns
a table with a name for the current function,
if a reasonable name can be found,
and the expression <code>debug.getinfo(print)</code>
returns a table with all available information
about the <a href="#pdf-print"><code>print</code></a> function.
<p>
<hr><h3><a name="pdf-debug.getlocal"><code>debug.getlocal ([thread,] level, local)</code></a></h3>
<p>
This function returns the name and the value of the local variable
with index <code>local</code> of the function at level <code>level</code> of the stack.
(The first parameter or local variable has index 1, and so on,
until the last active local variable.)
The function returns <b>nil</b> if there is no local
variable with the given index,
and raises an error when called with a <code>level</code> out of range.
(You can call <a href="#pdf-debug.getinfo"><code>debug.getinfo</code></a> to check whether the level is valid.)
<p>
Variable names starting with '<code>(</code>' (open parentheses)
represent internal variables
(loop control variables, temporaries, and C function locals).
<p>
<hr><h3><a name="pdf-debug.getmetatable"><code>debug.getmetatable (object)</code></a></h3>
<p>
Returns the metatable of the given <code>object</code>
or <b>nil</b> if it does not have a metatable.
<p>
<hr><h3><a name="pdf-debug.getregistry"><code>debug.getregistry ()</code></a></h3>
<p>
Returns the registry table (see <a href="#3.5">§3.5</a>).
<p>
<hr><h3><a name="pdf-debug.getupvalue"><code>debug.getupvalue (func, up)</code></a></h3>
<p>
This function returns the name and the value of the upvalue
with index <code>up</code> of the function <code>func</code>.
The function returns <b>nil</b> if there is no upvalue with the given index.
<p>
<hr><h3><a name="pdf-debug.setfenv"><code>debug.setfenv (object, table)</code></a></h3>
<p>
Sets the environment of the given <code>object</code> to the given <code>table</code>.
Returns <code>object</code>.
<p>
<hr><h3><a name="pdf-debug.sethook"><code>debug.sethook ([thread,] hook, mask [, count])</code></a></h3>
<p>
Sets the given function as a hook.
The string <code>mask</code> and the number <code>count</code> describe
when the hook will be called.
The string mask may have the following characters,
with the given meaning:
<ul>
<li><b><code>"c"</code>:</b> the hook is called every time Lua calls a function;</li>
<li><b><code>"r"</code>:</b> the hook is called every time Lua returns from a function;</li>
<li><b><code>"l"</code>:</b> the hook is called every time Lua enters a new line of code.</li>
</ul><p>
With a <code>count</code> different from zero,
the hook is called after every <code>count</code> instructions.
<p>
When called without arguments,
<a href="#pdf-debug.sethook"><code>debug.sethook</code></a> turns off the hook.
<p>
When the hook is called, its first parameter is a string
describing the event that has triggered its call:
<code>"call"</code>, <code>"return"</code> (or <code>"tail return"</code>,
when simulating a return from a tail call),
<code>"line"</code>, and <code>"count"</code>.
For line events,
the hook also gets the new line number as its second parameter.
Inside a hook,
you can call <code>getinfo</code> with level 2 to get more information about
the running function
(level 0 is the <code>getinfo</code> function,
and level 1 is the hook function),
unless the event is <code>"tail return"</code>.
In this case, Lua is only simulating the return,
and a call to <code>getinfo</code> will return invalid data.
<p>
<hr><h3><a name="pdf-debug.setlocal"><code>debug.setlocal ([thread,] level, local, value)</code></a></h3>
<p>
This function assigns the value <code>value</code> to the local variable
with index <code>local</code> of the function at level <code>level</code> of the stack.
The function returns <b>nil</b> if there is no local
variable with the given index,
and raises an error when called with a <code>level</code> out of range.
(You can call <code>getinfo</code> to check whether the level is valid.)
Otherwise, it returns the name of the local variable.
<p>
<hr><h3><a name="pdf-debug.setmetatable"><code>debug.setmetatable (object, table)</code></a></h3>
<p>
Sets the metatable for the given <code>object</code> to the given <code>table</code>
(which can be <b>nil</b>).
<p>
<hr><h3><a name="pdf-debug.setupvalue"><code>debug.setupvalue (func, up, value)</code></a></h3>
<p>
This function assigns the value <code>value</code> to the upvalue
with index <code>up</code> of the function <code>func</code>.
The function returns <b>nil</b> if there is no upvalue
with the given index.
Otherwise, it returns the name of the upvalue.
<p>
<hr><h3><a name="pdf-debug.traceback"><code>debug.traceback ([thread,] [message [, level]])</code></a></h3>
<p>
Returns a string with a traceback of the call stack.
An optional <code>message</code> string is appended
at the beginning of the traceback.
An optional <code>level</code> number tells at which level
to start the traceback
(default is 1, the function calling <code>traceback</code>).
<h1>6 - <a name="6">Lua Stand-alone</a></h1>
<p>
Although Lua has been designed as an extension language,
to be embedded in a host C program,
it is also frequently used as a stand-alone language.
An interpreter for Lua as a stand-alone language,
called simply <code>lua</code>,
is provided with the standard distribution.
The stand-alone interpreter includes
all standard libraries, including the debug library.
Its usage is:
<pre>
lua [options] [script [args]]
</pre><p>
The options are:
<ul>
<li><b><code>-e <em>stat</em></code>:</b> executes string <em>stat</em>;</li>
<li><b><code>-l <em>mod</em></code>:</b> "requires" <em>mod</em>;</li>
<li><b><code>-i</code>:</b> enters interactive mode after running <em>script</em>;</li>
<li><b><code>-v</code>:</b> prints version information;</li>
<li><b><code>--</code>:</b> stops handling options;</li>
<li><b><code>-</code>:</b> executes <code>stdin</code> as a file and stops handling options.</li>
</ul><p>
After handling its options, <code>lua</code> runs the given <em>script</em>,
passing to it the given <em>args</em> as string arguments.
When called without arguments,
<code>lua</code> behaves as <code>lua -v -i</code>
when the standard input (<code>stdin</code>) is a terminal,
and as <code>lua -</code> otherwise.
<p>
Before running any argument,
the interpreter checks for an environment variable <a name="pdf-LUA_INIT"><code>LUA_INIT</code></a>.
If its format is <code>@<em>filename</em></code>,
then <code>lua</code> executes the file.
Otherwise, <code>lua</code> executes the string itself.
<p>
All options are handled in order, except <code>-i</code>.
For instance, an invocation like
<pre>
$ lua -e'a=1' -e 'print(a)' script.lua
</pre><p>
will first set <code>a</code> to 1, then print the value of <code>a</code> (which is '<code>1</code>'),
and finally run the file <code>script.lua</code> with no arguments.
(Here <code>$</code> is the shell prompt. Your prompt may be different.)
<p>
Before starting to run the script,
<code>lua</code> collects all arguments in the command line
in a global table called <code>arg</code>.
The script name is stored at index 0,
the first argument after the script name goes to index 1,
and so on.
Any arguments before the script name
(that is, the interpreter name plus the options)
go to negative indices.
For instance, in the call
<pre>
$ lua -la b.lua t1 t2
</pre><p>
the interpreter first runs the file <code>a.lua</code>,
then creates a table
<pre>
arg = { [-2] = "lua", [-1] = "-la",
[0] = "b.lua",
[1] = "t1", [2] = "t2" }
</pre><p>
and finally runs the file <code>b.lua</code>.
The script is called with <code>arg[1]</code>, <code>arg[2]</code>, ···
as arguments;
it can also access these arguments with the vararg expression '<code>...</code>'.
<p>
In interactive mode,
if you write an incomplete statement,
the interpreter waits for its completion
by issuing a different prompt.
<p>
If the global variable <a name="pdf-_PROMPT"><code>_PROMPT</code></a> contains a string,
then its value is used as the prompt.
Similarly, if the global variable <a name="pdf-_PROMPT2"><code>_PROMPT2</code></a> contains a string,
its value is used as the secondary prompt
(issued during incomplete statements).
Therefore, both prompts can be changed directly on the command line
or in any Lua programs by assigning to <code>_PROMPT</code>.
See the next example:
<pre>
$ lua -e"_PROMPT='myprompt> '" -i
</pre><p>
(The outer pair of quotes is for the shell,
the inner pair is for Lua.)
Note the use of <code>-i</code> to enter interactive mode;
otherwise,
the program would just end silently
right after the assignment to <code>_PROMPT</code>.
<p>
To allow the use of Lua as a
script interpreter in Unix systems,
the stand-alone interpreter skips
the first line of a chunk if it starts with <code>#</code>.
Therefore, Lua scripts can be made into executable programs
by using <code>chmod +x</code> and the <code>#!</code> form,
as in
<pre>
#!/usr/local/bin/lua
</pre><p>
(Of course,
the location of the Lua interpreter may be different in your machine.
If <code>lua</code> is in your <code>PATH</code>,
then
<pre>
#!/usr/bin/env lua
</pre><p>
is a more portable solution.)
<h1>7 - <a name="7">Incompatibilities with the Previous Version</a></h1>
<p>
Here we list the incompatibilities that you may find when moving a program
from Lua 5.0 to Lua 5.1.
You can avoid most of the incompatibilities compiling Lua with
appropriate options (see file <code>luaconf.h</code>).
However,
all these compatibility options will be removed in the next version of Lua.
<h2>7.1 - <a name="7.1">Changes in the Language</a></h2>
<ul>
<li>
The vararg system changed from the pseudo-argument <code>arg</code> with a
table with the extra arguments to the vararg expression.
(See compile-time option <code>LUA_COMPAT_VARARG</code> in <code>luaconf.h</code>.)
</li>
<li>
There was a subtle change in the scope of the implicit
variables of the <b>for</b> statement and for the <b>repeat</b> statement.
</li>
<li>
The long string/long comment syntax (<code>[[<em>string</em>]]</code>)
does not allow nesting.
You can use the new syntax (<code>[=[<em>string</em>]=]</code>) in these cases.
(See compile-time option <code>LUA_COMPAT_LSTR</code> in <code>luaconf.h</code>.)
</li>
</ul>
<h2>7.2 - <a name="7.2">Changes in the Libraries</a></h2>
<ul>
<li>
Function <code>string.gfind</code> was renamed <a href="#pdf-string.gmatch"><code>string.gmatch</code></a>.
(See compile-time option <code>LUA_COMPAT_GFIND</code> in <code>luaconf.h</code>.)
</li>
<li>
When <a href="#pdf-string.gsub"><code>string.gsub</code></a> is called with a function as its
third argument,
whenever this function returns <b>nil</b> or <b>false</b> the
replacement string is the whole match,
instead of the empty string.
</li>
<li>
Function <code>table.setn</code> was deprecated.
Function <code>table.getn</code> corresponds
to the new length operator (<code>#</code>);
use the operator instead of the function.
(See compile-time option <code>LUA_COMPAT_GETN</code> in <code>luaconf.h</code>.)
</li>
<li>
Function <code>loadlib</code> was renamed <a href="#pdf-package.loadlib"><code>package.loadlib</code></a>.
(See compile-time option <code>LUA_COMPAT_LOADLIB</code> in <code>luaconf.h</code>.)
</li>
<li>
Function <code>math.mod</code> was renamed <a href="#pdf-math.fmod"><code>math.fmod</code></a>.
(See compile-time option <code>LUA_COMPAT_MOD</code> in <code>luaconf.h</code>.)
</li>
<li>
Functions <code>table.foreach</code> and <code>table.foreachi</code> are deprecated.
You can use a for loop with <code>pairs</code> or <code>ipairs</code> instead.
</li>
<li>
There were substantial changes in function <a href="#pdf-require"><code>require</code></a> due to
the new module system.
However, the new behavior is mostly compatible with the old,
but <code>require</code> gets the path from <a href="#pdf-package.path"><code>package.path</code></a> instead
of from <code>LUA_PATH</code>.
</li>
<li>
Function <a href="#pdf-collectgarbage"><code>collectgarbage</code></a> has different arguments.
Function <code>gcinfo</code> is deprecated;
use <code>collectgarbage("count")</code> instead.
</li>
</ul>
<h2>7.3 - <a name="7.3">Changes in the API</a></h2>
<ul>
<li>
The <code>luaopen_*</code> functions (to open libraries)
cannot be called directly,
like a regular C function.
They must be called through Lua,
like a Lua function.
</li>
<li>
Function <code>lua_open</code> was replaced by <a href="#lua_newstate"><code>lua_newstate</code></a> to
allow the user to set a memory-allocation function.
You can use <a href="#luaL_newstate"><code>luaL_newstate</code></a> from the standard library to
create a state with a standard allocation function
(based on <code>realloc</code>).
</li>
<li>
Functions <code>luaL_getn</code> and <code>luaL_setn</code>
(from the auxiliary library) are deprecated.
Use <a href="#lua_objlen"><code>lua_objlen</code></a> instead of <code>luaL_getn</code>
and nothing instead of <code>luaL_setn</code>.
</li>
<li>
Function <code>luaL_openlib</code> was replaced by <a href="#luaL_register"><code>luaL_register</code></a>.
</li>
<li>
Function <code>luaL_checkudata</code> now throws an error when the given value
is not a userdata of the expected type.
(In Lua 5.0 it returned <code>NULL</code>.)
</li>
</ul>
<h1>8 - <a name="8">The Complete Syntax of Lua</a></h1>
<p>
Here is the complete syntax of Lua in extended BNF.
(It does not describe operator precedences.)
<pre>
chunk ::= {stat [`<b>;</b>´]} [laststat [`<b>;</b>´]]
block ::= chunk
stat ::= varlist `<b>=</b>´ explist |
functioncall |
<b>do</b> block <b>end</b> |
<b>while</b> exp <b>do</b> block <b>end</b> |
<b>repeat</b> block <b>until</b> exp |
<b>if</b> exp <b>then</b> block {<b>elseif</b> exp <b>then</b> block} [<b>else</b> block] <b>end</b> |
<b>for</b> Name `<b>=</b>´ exp `<b>,</b>´ exp [`<b>,</b>´ exp] <b>do</b> block <b>end</b> |
<b>for</b> namelist <b>in</b> explist <b>do</b> block <b>end</b> |
<b>function</b> funcname funcbody |
<b>local</b> <b>function</b> Name funcbody |
<b>local</b> namelist [`<b>=</b>´ explist]
laststat ::= <b>return</b> [explist] | <b>break</b>
funcname ::= Name {`<b>.</b>´ Name} [`<b>:</b>´ Name]
varlist ::= var {`<b>,</b>´ var}
var ::= Name | prefixexp `<b>[</b>´ exp `<b>]</b>´ | prefixexp `<b>.</b>´ Name
namelist ::= Name {`<b>,</b>´ Name}
explist ::= {exp `<b>,</b>´} exp
exp ::= <b>nil</b> | <b>false</b> | <b>true</b> | Number | String | `<b>...</b>´ | function |
prefixexp | tableconstructor | exp binop exp | unop exp
prefixexp ::= var | functioncall | `<b>(</b>´ exp `<b>)</b>´
functioncall ::= prefixexp args | prefixexp `<b>:</b>´ Name args
args ::= `<b>(</b>´ [explist] `<b>)</b>´ | tableconstructor | String
function ::= <b>function</b> funcbody
funcbody ::= `<b>(</b>´ [parlist] `<b>)</b>´ block <b>end</b>
parlist ::= namelist [`<b>,</b>´ `<b>...</b>´] | `<b>...</b>´
tableconstructor ::= `<b>{</b>´ [fieldlist] `<b>}</b>´
fieldlist ::= field {fieldsep field} [fieldsep]
field ::= `<b>[</b>´ exp `<b>]</b>´ `<b>=</b>´ exp | Name `<b>=</b>´ exp | exp
fieldsep ::= `<b>,</b>´ | `<b>;</b>´
binop ::= `<b>+</b>´ | `<b>-</b>´ | `<b>*</b>´ | `<b>/</b>´ | `<b>^</b>´ | `<b>%</b>´ | `<b>..</b>´ |
`<b><</b>´ | `<b><=</b>´ | `<b>></b>´ | `<b>>=</b>´ | `<b>==</b>´ | `<b>~=</b>´ |
<b>and</b> | <b>or</b>
unop ::= `<b>-</b>´ | <b>not</b> | `<b>#</b>´
</pre>
<p>
<HR>
<SMALL CLASS="footer">
Last update:
Mon Feb 13 18:54:19 BRST 2012
</SMALL>
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Last change: revised for Lua 5.1.5
-->
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<!-- $Id: luac.man,v 1.28 2006/01/06 16:03:34 lhf Exp $ -->
<HTML>
<HEAD>
<TITLE>LUAC man page</TITLE>
<LINK REL="stylesheet" TYPE="text/css" HREF="lua.css">
</HEAD>
<BODY BGCOLOR="#FFFFFF">
<H2>NAME</H2>
luac - Lua compiler
<H2>SYNOPSIS</H2>
<B>luac</B>
[
<I>options</I>
] [
<I>filenames</I>
]
<H2>DESCRIPTION</H2>
<B>luac</B>
is the Lua compiler.
It translates programs written in the Lua programming language
into binary files that can be later loaded and executed.
<P>
The main advantages of precompiling chunks are:
faster loading,
protecting source code from accidental user changes,
and
off-line syntax checking.
<P>
Precompiling does not imply faster execution
because in Lua chunks are always compiled into bytecodes before being executed.
<B>luac</B>
simply allows those bytecodes to be saved in a file for later execution.
<P>
Precompiled chunks are not necessarily smaller than the corresponding source.
The main goal in precompiling is faster loading.
<P>
The binary files created by
<B>luac</B>
are portable only among architectures with the same word size and byte order.
<P>
<B>luac</B>
produces a single output file containing the bytecodes
for all source files given.
By default,
the output file is named
<B>luac.out</B>,
but you can change this with the
<B>-o</B>
option.
<P>
In the command line,
you can mix
text files containing Lua source and
binary files containing precompiled chunks.
This is useful because several precompiled chunks,
even from different (but compatible) platforms,
can be combined into a single precompiled chunk.
<P>
You can use
<B>'-'</B>
to indicate the standard input as a source file
and
<B>'--'</B>
to signal the end of options
(that is,
all remaining arguments will be treated as files even if they start with
<B>'-'</B>).
<P>
The internal format of the binary files produced by
<B>luac</B>
is likely to change when a new version of Lua is released.
So,
save the source files of all Lua programs that you precompile.
<P>
<H2>OPTIONS</H2>
Options must be separate.
<P>
<B>-l</B>
produce a listing of the compiled bytecode for Lua's virtual machine.
Listing bytecodes is useful to learn about Lua's virtual machine.
If no files are given, then
<B>luac</B>
loads
<B>luac.out</B>
and lists its contents.
<P>
<B>-o </B><I>file</I>
output to
<I>file</I>,
instead of the default
<B>luac.out</B>.
(You can use
<B>'-'</B>
for standard output,
but not on platforms that open standard output in text mode.)
The output file may be a source file because
all files are loaded before the output file is written.
Be careful not to overwrite precious files.
<P>
<B>-p</B>
load files but do not generate any output file.
Used mainly for syntax checking and for testing precompiled chunks:
corrupted files will probably generate errors when loaded.
Lua always performs a thorough integrity test on precompiled chunks.
Bytecode that passes this test is completely safe,
in the sense that it will not break the interpreter.
However,
there is no guarantee that such code does anything sensible.
(None can be given, because the halting problem is unsolvable.)
If no files are given, then
<B>luac</B>
loads
<B>luac.out</B>
and tests its contents.
No messages are displayed if the file passes the integrity test.
<P>
<B>-s</B>
strip debug information before writing the output file.
This saves some space in very large chunks,
but if errors occur when running a stripped chunk,
then the error messages may not contain the full information they usually do.
For instance,
line numbers and names of local variables are lost.
<P>
<B>-v</B>
show version information.
<H2>FILES</H2>
<P>
<B>luac.out</B>
default output file
<H2>SEE ALSO</H2>
<B>lua</B>(1)
<BR>
<A HREF="http://www.lua.org/">http://www.lua.org/</A>
<H2>DIAGNOSTICS</H2>
Error messages should be self explanatory.
<H2>AUTHORS</H2>
L. H. de Figueiredo,
R. Ierusalimschy and
W. Celes
<!-- EOF -->
</BODY>
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NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/doc/readme.html
|
<HTML>
<HEAD>
<TITLE>Lua documentation</TITLE>
<LINK REL="stylesheet" TYPE="text/css" HREF="lua.css">
</HEAD>
<BODY>
<HR>
<H1>
<A HREF="http://www.lua.org/"><IMG SRC="logo.gif" ALT="Lua" BORDER=0></A>
Documentation
</H1>
This is the documentation included in the source distribution of Lua 5.1.5.
<UL>
<LI><A HREF="contents.html">Reference manual</A>
<LI><A HREF="lua.html">lua man page</A>
<LI><A HREF="luac.html">luac man page</A>
<LI><A HREF="../README">lua/README</A>
<LI><A HREF="../etc/README">lua/etc/README</A>
<LI><A HREF="../test/README">lua/test/README</A>
</UL>
Lua's
<A HREF="http://www.lua.org/">official web site</A>
contains updated documentation,
especially the
<A HREF="http://www.lua.org/manual/5.1/">reference manual</A>.
<P>
<HR>
<SMALL>
Last update:
Fri Feb 3 09:44:42 BRST 2012
</SMALL>
</BODY>
</HTML>
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NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/lua/doc/contents.html
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML>
<HEAD>
<TITLE>Lua 5.1 Reference Manual - contents</TITLE>
<LINK REL="stylesheet" TYPE="text/css" HREF="lua.css">
<META HTTP-EQUIV="content-type" CONTENT="text/html; charset=utf-8">
<STYLE TYPE="text/css">
ul {
list-style-type: none ;
}
</STYLE>
</HEAD>
<BODY>
<HR>
<H1>
<A HREF="http://www.lua.org/"><IMG SRC="logo.gif" ALT="" BORDER=0></A>
Lua 5.1 Reference Manual
</H1>
<P>
The reference manual is the official definition of the Lua language.
For a complete introduction to Lua programming, see the book
<A HREF="http://www.lua.org/docs.html#pil">Programming in Lua</A>.
<P>
This manual is also available as a book:
<BLOCKQUOTE>
<A HREF="http://www.amazon.com/exec/obidos/ASIN/8590379833/lua-indexmanual-20">
<IMG SRC="cover.png" ALT="" TITLE="buy from Amazon" BORDER=1 ALIGN="left" HSPACE=12>
</A>
<B>Lua 5.1 Reference Manual</B>
<BR>by R. Ierusalimschy, L. H. de Figueiredo, W. Celes
<BR>Lua.org, August 2006
<BR>ISBN 85-903798-3-3
<BR CLEAR="all">
</BLOCKQUOTE>
<P>
<A HREF="http://www.amazon.com/exec/obidos/ASIN/8590379833/lua-indexmanual-20">Buy a copy</A>
of this book and
<A HREF="http://www.lua.org/donations.html">help to support</A>
the Lua project.
<P>
<A HREF="manual.html">start</A>
·
<A HREF="#contents">contents</A>
·
<A HREF="#index">index</A>
·
<A HREF="http://www.lua.org/manual/">other versions</A>
<HR>
<SMALL>
Copyright © 2006–2012 Lua.org, PUC-Rio.
Freely available under the terms of the
<A HREF="http://www.lua.org/license.html">Lua license</A>.
</SMALL>
<H2><A NAME="contents">Contents</A></H2>
<UL style="padding: 0">
<LI><A HREF="manual.html">1 – Introduction</A>
<P>
<LI><A HREF="manual.html#2">2 – The Language</A>
<UL>
<LI><A HREF="manual.html#2.1">2.1 – Lexical Conventions</A>
<LI><A HREF="manual.html#2.2">2.2 – Values and Types</A>
<UL>
<LI><A HREF="manual.html#2.2.1">2.2.1 – Coercion</A>
</UL>
<LI><A HREF="manual.html#2.3">2.3 – Variables</A>
<LI><A HREF="manual.html#2.4">2.4 – Statements</A>
<UL>
<LI><A HREF="manual.html#2.4.1">2.4.1 – Chunks</A>
<LI><A HREF="manual.html#2.4.2">2.4.2 – Blocks</A>
<LI><A HREF="manual.html#2.4.3">2.4.3 – Assignment</A>
<LI><A HREF="manual.html#2.4.4">2.4.4 – Control Structures</A>
<LI><A HREF="manual.html#2.4.5">2.4.5 – For Statement</A>
<LI><A HREF="manual.html#2.4.6">2.4.6 – Function Calls as Statements</A>
<LI><A HREF="manual.html#2.4.7">2.4.7 – Local Declarations</A>
</UL>
<LI><A HREF="manual.html#2.5">2.5 – Expressions</A>
<UL>
<LI><A HREF="manual.html#2.5.1">2.5.1 – Arithmetic Operators</A>
<LI><A HREF="manual.html#2.5.2">2.5.2 – Relational Operators</A>
<LI><A HREF="manual.html#2.5.3">2.5.3 – Logical Operators</A>
<LI><A HREF="manual.html#2.5.4">2.5.4 – Concatenation</A>
<LI><A HREF="manual.html#2.5.5">2.5.5 – The Length Operator</A>
<LI><A HREF="manual.html#2.5.6">2.5.6 – Precedence</A>
<LI><A HREF="manual.html#2.5.7">2.5.7 – Table Constructors</A>
<LI><A HREF="manual.html#2.5.8">2.5.8 – Function Calls</A>
<LI><A HREF="manual.html#2.5.9">2.5.9 – Function Definitions</A>
</UL>
<LI><A HREF="manual.html#2.6">2.6 – Visibility Rules</A>
<LI><A HREF="manual.html#2.7">2.7 – Error Handling</A>
<LI><A HREF="manual.html#2.8">2.8 – Metatables</A>
<LI><A HREF="manual.html#2.9">2.9 – Environments</A>
<LI><A HREF="manual.html#2.10">2.10 – Garbage Collection</A>
<UL>
<LI><A HREF="manual.html#2.10.1">2.10.1 – Garbage-Collection Metamethods</A>
<LI><A HREF="manual.html#2.10.2">2.10.2 – Weak Tables</A>
</UL>
<LI><A HREF="manual.html#2.11">2.11 – Coroutines</A>
</UL>
<P>
<LI><A HREF="manual.html#3">3 – The Application Program Interface</A>
<UL>
<LI><A HREF="manual.html#3.1">3.1 – The Stack</A>
<LI><A HREF="manual.html#3.2">3.2 – Stack Size</A>
<LI><A HREF="manual.html#3.3">3.3 – Pseudo-Indices</A>
<LI><A HREF="manual.html#3.4">3.4 – C Closures</A>
<LI><A HREF="manual.html#3.5">3.5 – Registry</A>
<LI><A HREF="manual.html#3.6">3.6 – Error Handling in C</A>
<LI><A HREF="manual.html#3.7">3.7 – Functions and Types</A>
<LI><A HREF="manual.html#3.8">3.8 – The Debug Interface</A>
</UL>
<P>
<LI><A HREF="manual.html#4">4 – The Auxiliary Library</A>
<UL>
<LI><A HREF="manual.html#4.1">4.1 – Functions and Types</A>
</UL>
<P>
<LI><A HREF="manual.html#5">5 – Standard Libraries</A>
<UL>
<LI><A HREF="manual.html#5.1">5.1 – Basic Functions</A>
<LI><A HREF="manual.html#5.2">5.2 – Coroutine Manipulation</A>
<LI><A HREF="manual.html#5.3">5.3 – Modules</A>
<LI><A HREF="manual.html#5.4">5.4 – String Manipulation</A>
<UL>
<LI><A HREF="manual.html#5.4.1">5.4.1 – Patterns</A>
</UL>
<LI><A HREF="manual.html#5.5">5.5 – Table Manipulation</A>
<LI><A HREF="manual.html#5.6">5.6 – Mathematical Functions</A>
<LI><A HREF="manual.html#5.7">5.7 – Input and Output Facilities</A>
<LI><A HREF="manual.html#5.8">5.8 – Operating System Facilities</A>
<LI><A HREF="manual.html#5.9">5.9 – The Debug Library</A>
</UL>
<P>
<LI><A HREF="manual.html#6">6 – Lua Stand-alone</A>
<P>
<LI><A HREF="manual.html#7">7 – Incompatibilities with the Previous Version</A>
<UL>
<LI><A HREF="manual.html#7.1">7.1 – Changes in the Language</A>
<LI><A HREF="manual.html#7.2">7.2 – Changes in the Libraries</A>
<LI><A HREF="manual.html#7.3">7.3 – Changes in the API</A>
</UL>
<P>
<LI><A HREF="manual.html#8">8 – The Complete Syntax of Lua</A>
</UL>
<H2><A NAME="index">Index</A></H2>
<TABLE WIDTH="100%">
<TR VALIGN="top">
<TD>
<H3><A NAME="functions">Lua functions</A></H3>
<A HREF="manual.html#pdf-_G">_G</A><BR>
<A HREF="manual.html#pdf-_VERSION">_VERSION</A><BR>
<P>
<A HREF="manual.html#pdf-assert">assert</A><BR>
<A HREF="manual.html#pdf-collectgarbage">collectgarbage</A><BR>
<A HREF="manual.html#pdf-dofile">dofile</A><BR>
<A HREF="manual.html#pdf-error">error</A><BR>
<A HREF="manual.html#pdf-getfenv">getfenv</A><BR>
<A HREF="manual.html#pdf-getmetatable">getmetatable</A><BR>
<A HREF="manual.html#pdf-ipairs">ipairs</A><BR>
<A HREF="manual.html#pdf-load">load</A><BR>
<A HREF="manual.html#pdf-loadfile">loadfile</A><BR>
<A HREF="manual.html#pdf-loadstring">loadstring</A><BR>
<A HREF="manual.html#pdf-module">module</A><BR>
<A HREF="manual.html#pdf-next">next</A><BR>
<A HREF="manual.html#pdf-pairs">pairs</A><BR>
<A HREF="manual.html#pdf-pcall">pcall</A><BR>
<A HREF="manual.html#pdf-print">print</A><BR>
<A HREF="manual.html#pdf-rawequal">rawequal</A><BR>
<A HREF="manual.html#pdf-rawget">rawget</A><BR>
<A HREF="manual.html#pdf-rawset">rawset</A><BR>
<A HREF="manual.html#pdf-require">require</A><BR>
<A HREF="manual.html#pdf-select">select</A><BR>
<A HREF="manual.html#pdf-setfenv">setfenv</A><BR>
<A HREF="manual.html#pdf-setmetatable">setmetatable</A><BR>
<A HREF="manual.html#pdf-tonumber">tonumber</A><BR>
<A HREF="manual.html#pdf-tostring">tostring</A><BR>
<A HREF="manual.html#pdf-type">type</A><BR>
<A HREF="manual.html#pdf-unpack">unpack</A><BR>
<A HREF="manual.html#pdf-xpcall">xpcall</A><BR>
<P>
<A HREF="manual.html#pdf-coroutine.create">coroutine.create</A><BR>
<A HREF="manual.html#pdf-coroutine.resume">coroutine.resume</A><BR>
<A HREF="manual.html#pdf-coroutine.running">coroutine.running</A><BR>
<A HREF="manual.html#pdf-coroutine.status">coroutine.status</A><BR>
<A HREF="manual.html#pdf-coroutine.wrap">coroutine.wrap</A><BR>
<A HREF="manual.html#pdf-coroutine.yield">coroutine.yield</A><BR>
<P>
<A HREF="manual.html#pdf-debug.debug">debug.debug</A><BR>
<A HREF="manual.html#pdf-debug.getfenv">debug.getfenv</A><BR>
<A HREF="manual.html#pdf-debug.gethook">debug.gethook</A><BR>
<A HREF="manual.html#pdf-debug.getinfo">debug.getinfo</A><BR>
<A HREF="manual.html#pdf-debug.getlocal">debug.getlocal</A><BR>
<A HREF="manual.html#pdf-debug.getmetatable">debug.getmetatable</A><BR>
<A HREF="manual.html#pdf-debug.getregistry">debug.getregistry</A><BR>
<A HREF="manual.html#pdf-debug.getupvalue">debug.getupvalue</A><BR>
<A HREF="manual.html#pdf-debug.setfenv">debug.setfenv</A><BR>
<A HREF="manual.html#pdf-debug.sethook">debug.sethook</A><BR>
<A HREF="manual.html#pdf-debug.setlocal">debug.setlocal</A><BR>
<A HREF="manual.html#pdf-debug.setmetatable">debug.setmetatable</A><BR>
<A HREF="manual.html#pdf-debug.setupvalue">debug.setupvalue</A><BR>
<A HREF="manual.html#pdf-debug.traceback">debug.traceback</A><BR>
</TD>
<TD>
<H3> </H3>
<A HREF="manual.html#pdf-file:close">file:close</A><BR>
<A HREF="manual.html#pdf-file:flush">file:flush</A><BR>
<A HREF="manual.html#pdf-file:lines">file:lines</A><BR>
<A HREF="manual.html#pdf-file:read">file:read</A><BR>
<A HREF="manual.html#pdf-file:seek">file:seek</A><BR>
<A HREF="manual.html#pdf-file:setvbuf">file:setvbuf</A><BR>
<A HREF="manual.html#pdf-file:write">file:write</A><BR>
<P>
<A HREF="manual.html#pdf-io.close">io.close</A><BR>
<A HREF="manual.html#pdf-io.flush">io.flush</A><BR>
<A HREF="manual.html#pdf-io.input">io.input</A><BR>
<A HREF="manual.html#pdf-io.lines">io.lines</A><BR>
<A HREF="manual.html#pdf-io.open">io.open</A><BR>
<A HREF="manual.html#pdf-io.output">io.output</A><BR>
<A HREF="manual.html#pdf-io.popen">io.popen</A><BR>
<A HREF="manual.html#pdf-io.read">io.read</A><BR>
<A HREF="manual.html#pdf-io.stderr">io.stderr</A><BR>
<A HREF="manual.html#pdf-io.stdin">io.stdin</A><BR>
<A HREF="manual.html#pdf-io.stdout">io.stdout</A><BR>
<A HREF="manual.html#pdf-io.tmpfile">io.tmpfile</A><BR>
<A HREF="manual.html#pdf-io.type">io.type</A><BR>
<A HREF="manual.html#pdf-io.write">io.write</A><BR>
<P>
<A HREF="manual.html#pdf-math.abs">math.abs</A><BR>
<A HREF="manual.html#pdf-math.acos">math.acos</A><BR>
<A HREF="manual.html#pdf-math.asin">math.asin</A><BR>
<A HREF="manual.html#pdf-math.atan">math.atan</A><BR>
<A HREF="manual.html#pdf-math.atan2">math.atan2</A><BR>
<A HREF="manual.html#pdf-math.ceil">math.ceil</A><BR>
<A HREF="manual.html#pdf-math.cos">math.cos</A><BR>
<A HREF="manual.html#pdf-math.cosh">math.cosh</A><BR>
<A HREF="manual.html#pdf-math.deg">math.deg</A><BR>
<A HREF="manual.html#pdf-math.exp">math.exp</A><BR>
<A HREF="manual.html#pdf-math.floor">math.floor</A><BR>
<A HREF="manual.html#pdf-math.fmod">math.fmod</A><BR>
<A HREF="manual.html#pdf-math.frexp">math.frexp</A><BR>
<A HREF="manual.html#pdf-math.huge">math.huge</A><BR>
<A HREF="manual.html#pdf-math.ldexp">math.ldexp</A><BR>
<A HREF="manual.html#pdf-math.log">math.log</A><BR>
<A HREF="manual.html#pdf-math.log10">math.log10</A><BR>
<A HREF="manual.html#pdf-math.max">math.max</A><BR>
<A HREF="manual.html#pdf-math.min">math.min</A><BR>
<A HREF="manual.html#pdf-math.modf">math.modf</A><BR>
<A HREF="manual.html#pdf-math.pi">math.pi</A><BR>
<A HREF="manual.html#pdf-math.pow">math.pow</A><BR>
<A HREF="manual.html#pdf-math.rad">math.rad</A><BR>
<A HREF="manual.html#pdf-math.random">math.random</A><BR>
<A HREF="manual.html#pdf-math.randomseed">math.randomseed</A><BR>
<A HREF="manual.html#pdf-math.sin">math.sin</A><BR>
<A HREF="manual.html#pdf-math.sinh">math.sinh</A><BR>
<A HREF="manual.html#pdf-math.sqrt">math.sqrt</A><BR>
<A HREF="manual.html#pdf-math.tan">math.tan</A><BR>
<A HREF="manual.html#pdf-math.tanh">math.tanh</A><BR>
<P>
<A HREF="manual.html#pdf-os.clock">os.clock</A><BR>
<A HREF="manual.html#pdf-os.date">os.date</A><BR>
<A HREF="manual.html#pdf-os.difftime">os.difftime</A><BR>
<A HREF="manual.html#pdf-os.execute">os.execute</A><BR>
<A HREF="manual.html#pdf-os.exit">os.exit</A><BR>
<A HREF="manual.html#pdf-os.getenv">os.getenv</A><BR>
<A HREF="manual.html#pdf-os.remove">os.remove</A><BR>
<A HREF="manual.html#pdf-os.rename">os.rename</A><BR>
<A HREF="manual.html#pdf-os.setlocale">os.setlocale</A><BR>
<A HREF="manual.html#pdf-os.time">os.time</A><BR>
<A HREF="manual.html#pdf-os.tmpname">os.tmpname</A><BR>
<P>
<A HREF="manual.html#pdf-package.cpath">package.cpath</A><BR>
<A HREF="manual.html#pdf-package.loaded">package.loaded</A><BR>
<A HREF="manual.html#pdf-package.loaders">package.loaders</A><BR>
<A HREF="manual.html#pdf-package.loadlib">package.loadlib</A><BR>
<A HREF="manual.html#pdf-package.path">package.path</A><BR>
<A HREF="manual.html#pdf-package.preload">package.preload</A><BR>
<A HREF="manual.html#pdf-package.seeall">package.seeall</A><BR>
<P>
<A HREF="manual.html#pdf-string.byte">string.byte</A><BR>
<A HREF="manual.html#pdf-string.char">string.char</A><BR>
<A HREF="manual.html#pdf-string.dump">string.dump</A><BR>
<A HREF="manual.html#pdf-string.find">string.find</A><BR>
<A HREF="manual.html#pdf-string.format">string.format</A><BR>
<A HREF="manual.html#pdf-string.gmatch">string.gmatch</A><BR>
<A HREF="manual.html#pdf-string.gsub">string.gsub</A><BR>
<A HREF="manual.html#pdf-string.len">string.len</A><BR>
<A HREF="manual.html#pdf-string.lower">string.lower</A><BR>
<A HREF="manual.html#pdf-string.match">string.match</A><BR>
<A HREF="manual.html#pdf-string.rep">string.rep</A><BR>
<A HREF="manual.html#pdf-string.reverse">string.reverse</A><BR>
<A HREF="manual.html#pdf-string.sub">string.sub</A><BR>
<A HREF="manual.html#pdf-string.upper">string.upper</A><BR>
<P>
<A HREF="manual.html#pdf-table.concat">table.concat</A><BR>
<A HREF="manual.html#pdf-table.insert">table.insert</A><BR>
<A HREF="manual.html#pdf-table.maxn">table.maxn</A><BR>
<A HREF="manual.html#pdf-table.remove">table.remove</A><BR>
<A HREF="manual.html#pdf-table.sort">table.sort</A><BR>
</TD>
<TD>
<H3>C API</H3>
<A HREF="manual.html#lua_Alloc">lua_Alloc</A><BR>
<A HREF="manual.html#lua_CFunction">lua_CFunction</A><BR>
<A HREF="manual.html#lua_Debug">lua_Debug</A><BR>
<A HREF="manual.html#lua_Hook">lua_Hook</A><BR>
<A HREF="manual.html#lua_Integer">lua_Integer</A><BR>
<A HREF="manual.html#lua_Number">lua_Number</A><BR>
<A HREF="manual.html#lua_Reader">lua_Reader</A><BR>
<A HREF="manual.html#lua_State">lua_State</A><BR>
<A HREF="manual.html#lua_Writer">lua_Writer</A><BR>
<P>
<A HREF="manual.html#lua_atpanic">lua_atpanic</A><BR>
<A HREF="manual.html#lua_call">lua_call</A><BR>
<A HREF="manual.html#lua_checkstack">lua_checkstack</A><BR>
<A HREF="manual.html#lua_close">lua_close</A><BR>
<A HREF="manual.html#lua_concat">lua_concat</A><BR>
<A HREF="manual.html#lua_cpcall">lua_cpcall</A><BR>
<A HREF="manual.html#lua_createtable">lua_createtable</A><BR>
<A HREF="manual.html#lua_dump">lua_dump</A><BR>
<A HREF="manual.html#lua_equal">lua_equal</A><BR>
<A HREF="manual.html#lua_error">lua_error</A><BR>
<A HREF="manual.html#lua_gc">lua_gc</A><BR>
<A HREF="manual.html#lua_getallocf">lua_getallocf</A><BR>
<A HREF="manual.html#lua_getfenv">lua_getfenv</A><BR>
<A HREF="manual.html#lua_getfield">lua_getfield</A><BR>
<A HREF="manual.html#lua_getglobal">lua_getglobal</A><BR>
<A HREF="manual.html#lua_gethook">lua_gethook</A><BR>
<A HREF="manual.html#lua_gethookcount">lua_gethookcount</A><BR>
<A HREF="manual.html#lua_gethookmask">lua_gethookmask</A><BR>
<A HREF="manual.html#lua_getinfo">lua_getinfo</A><BR>
<A HREF="manual.html#lua_getlocal">lua_getlocal</A><BR>
<A HREF="manual.html#lua_getmetatable">lua_getmetatable</A><BR>
<A HREF="manual.html#lua_getstack">lua_getstack</A><BR>
<A HREF="manual.html#lua_gettable">lua_gettable</A><BR>
<A HREF="manual.html#lua_gettop">lua_gettop</A><BR>
<A HREF="manual.html#lua_getupvalue">lua_getupvalue</A><BR>
<A HREF="manual.html#lua_insert">lua_insert</A><BR>
<A HREF="manual.html#lua_isboolean">lua_isboolean</A><BR>
<A HREF="manual.html#lua_iscfunction">lua_iscfunction</A><BR>
<A HREF="manual.html#lua_isfunction">lua_isfunction</A><BR>
<A HREF="manual.html#lua_islightuserdata">lua_islightuserdata</A><BR>
<A HREF="manual.html#lua_isnil">lua_isnil</A><BR>
<A HREF="manual.html#lua_isnone">lua_isnone</A><BR>
<A HREF="manual.html#lua_isnoneornil">lua_isnoneornil</A><BR>
<A HREF="manual.html#lua_isnumber">lua_isnumber</A><BR>
<A HREF="manual.html#lua_isstring">lua_isstring</A><BR>
<A HREF="manual.html#lua_istable">lua_istable</A><BR>
<A HREF="manual.html#lua_isthread">lua_isthread</A><BR>
<A HREF="manual.html#lua_isuserdata">lua_isuserdata</A><BR>
<A HREF="manual.html#lua_lessthan">lua_lessthan</A><BR>
<A HREF="manual.html#lua_load">lua_load</A><BR>
<A HREF="manual.html#lua_newstate">lua_newstate</A><BR>
<A HREF="manual.html#lua_newtable">lua_newtable</A><BR>
<A HREF="manual.html#lua_newthread">lua_newthread</A><BR>
<A HREF="manual.html#lua_newuserdata">lua_newuserdata</A><BR>
<A HREF="manual.html#lua_next">lua_next</A><BR>
<A HREF="manual.html#lua_objlen">lua_objlen</A><BR>
<A HREF="manual.html#lua_pcall">lua_pcall</A><BR>
<A HREF="manual.html#lua_pop">lua_pop</A><BR>
<A HREF="manual.html#lua_pushboolean">lua_pushboolean</A><BR>
<A HREF="manual.html#lua_pushcclosure">lua_pushcclosure</A><BR>
<A HREF="manual.html#lua_pushcfunction">lua_pushcfunction</A><BR>
<A HREF="manual.html#lua_pushfstring">lua_pushfstring</A><BR>
<A HREF="manual.html#lua_pushinteger">lua_pushinteger</A><BR>
<A HREF="manual.html#lua_pushlightuserdata">lua_pushlightuserdata</A><BR>
<A HREF="manual.html#lua_pushliteral">lua_pushliteral</A><BR>
<A HREF="manual.html#lua_pushlstring">lua_pushlstring</A><BR>
<A HREF="manual.html#lua_pushnil">lua_pushnil</A><BR>
<A HREF="manual.html#lua_pushnumber">lua_pushnumber</A><BR>
<A HREF="manual.html#lua_pushstring">lua_pushstring</A><BR>
<A HREF="manual.html#lua_pushthread">lua_pushthread</A><BR>
<A HREF="manual.html#lua_pushvalue">lua_pushvalue</A><BR>
<A HREF="manual.html#lua_pushvfstring">lua_pushvfstring</A><BR>
<A HREF="manual.html#lua_rawequal">lua_rawequal</A><BR>
<A HREF="manual.html#lua_rawget">lua_rawget</A><BR>
<A HREF="manual.html#lua_rawgeti">lua_rawgeti</A><BR>
<A HREF="manual.html#lua_rawset">lua_rawset</A><BR>
<A HREF="manual.html#lua_rawseti">lua_rawseti</A><BR>
<A HREF="manual.html#lua_register">lua_register</A><BR>
<A HREF="manual.html#lua_remove">lua_remove</A><BR>
<A HREF="manual.html#lua_replace">lua_replace</A><BR>
<A HREF="manual.html#lua_resume">lua_resume</A><BR>
<A HREF="manual.html#lua_setallocf">lua_setallocf</A><BR>
<A HREF="manual.html#lua_setfenv">lua_setfenv</A><BR>
<A HREF="manual.html#lua_setfield">lua_setfield</A><BR>
<A HREF="manual.html#lua_setglobal">lua_setglobal</A><BR>
<A HREF="manual.html#lua_sethook">lua_sethook</A><BR>
<A HREF="manual.html#lua_setlocal">lua_setlocal</A><BR>
<A HREF="manual.html#lua_setmetatable">lua_setmetatable</A><BR>
<A HREF="manual.html#lua_settable">lua_settable</A><BR>
<A HREF="manual.html#lua_settop">lua_settop</A><BR>
<A HREF="manual.html#lua_setupvalue">lua_setupvalue</A><BR>
<A HREF="manual.html#lua_status">lua_status</A><BR>
<A HREF="manual.html#lua_toboolean">lua_toboolean</A><BR>
<A HREF="manual.html#lua_tocfunction">lua_tocfunction</A><BR>
<A HREF="manual.html#lua_tointeger">lua_tointeger</A><BR>
<A HREF="manual.html#lua_tolstring">lua_tolstring</A><BR>
<A HREF="manual.html#lua_tonumber">lua_tonumber</A><BR>
<A HREF="manual.html#lua_topointer">lua_topointer</A><BR>
<A HREF="manual.html#lua_tostring">lua_tostring</A><BR>
<A HREF="manual.html#lua_tothread">lua_tothread</A><BR>
<A HREF="manual.html#lua_touserdata">lua_touserdata</A><BR>
<A HREF="manual.html#lua_type">lua_type</A><BR>
<A HREF="manual.html#lua_typename">lua_typename</A><BR>
<A HREF="manual.html#lua_upvalueindex">lua_upvalueindex</A><BR>
<A HREF="manual.html#lua_xmove">lua_xmove</A><BR>
<A HREF="manual.html#lua_yield">lua_yield</A><BR>
</TD>
<TD>
<H3>auxiliary library</H3>
<A HREF="manual.html#luaL_Buffer">luaL_Buffer</A><BR>
<A HREF="manual.html#luaL_Reg">luaL_Reg</A><BR>
<P>
<A HREF="manual.html#luaL_addchar">luaL_addchar</A><BR>
<A HREF="manual.html#luaL_addlstring">luaL_addlstring</A><BR>
<A HREF="manual.html#luaL_addsize">luaL_addsize</A><BR>
<A HREF="manual.html#luaL_addstring">luaL_addstring</A><BR>
<A HREF="manual.html#luaL_addvalue">luaL_addvalue</A><BR>
<A HREF="manual.html#luaL_argcheck">luaL_argcheck</A><BR>
<A HREF="manual.html#luaL_argerror">luaL_argerror</A><BR>
<A HREF="manual.html#luaL_buffinit">luaL_buffinit</A><BR>
<A HREF="manual.html#luaL_callmeta">luaL_callmeta</A><BR>
<A HREF="manual.html#luaL_checkany">luaL_checkany</A><BR>
<A HREF="manual.html#luaL_checkint">luaL_checkint</A><BR>
<A HREF="manual.html#luaL_checkinteger">luaL_checkinteger</A><BR>
<A HREF="manual.html#luaL_checklong">luaL_checklong</A><BR>
<A HREF="manual.html#luaL_checklstring">luaL_checklstring</A><BR>
<A HREF="manual.html#luaL_checknumber">luaL_checknumber</A><BR>
<A HREF="manual.html#luaL_checkoption">luaL_checkoption</A><BR>
<A HREF="manual.html#luaL_checkstack">luaL_checkstack</A><BR>
<A HREF="manual.html#luaL_checkstring">luaL_checkstring</A><BR>
<A HREF="manual.html#luaL_checktype">luaL_checktype</A><BR>
<A HREF="manual.html#luaL_checkudata">luaL_checkudata</A><BR>
<A HREF="manual.html#luaL_dofile">luaL_dofile</A><BR>
<A HREF="manual.html#luaL_dostring">luaL_dostring</A><BR>
<A HREF="manual.html#luaL_error">luaL_error</A><BR>
<A HREF="manual.html#luaL_getmetafield">luaL_getmetafield</A><BR>
<A HREF="manual.html#luaL_getmetatable">luaL_getmetatable</A><BR>
<A HREF="manual.html#luaL_gsub">luaL_gsub</A><BR>
<A HREF="manual.html#luaL_loadbuffer">luaL_loadbuffer</A><BR>
<A HREF="manual.html#luaL_loadfile">luaL_loadfile</A><BR>
<A HREF="manual.html#luaL_loadstring">luaL_loadstring</A><BR>
<A HREF="manual.html#luaL_newmetatable">luaL_newmetatable</A><BR>
<A HREF="manual.html#luaL_newstate">luaL_newstate</A><BR>
<A HREF="manual.html#luaL_openlibs">luaL_openlibs</A><BR>
<A HREF="manual.html#luaL_optint">luaL_optint</A><BR>
<A HREF="manual.html#luaL_optinteger">luaL_optinteger</A><BR>
<A HREF="manual.html#luaL_optlong">luaL_optlong</A><BR>
<A HREF="manual.html#luaL_optlstring">luaL_optlstring</A><BR>
<A HREF="manual.html#luaL_optnumber">luaL_optnumber</A><BR>
<A HREF="manual.html#luaL_optstring">luaL_optstring</A><BR>
<A HREF="manual.html#luaL_prepbuffer">luaL_prepbuffer</A><BR>
<A HREF="manual.html#luaL_pushresult">luaL_pushresult</A><BR>
<A HREF="manual.html#luaL_ref">luaL_ref</A><BR>
<A HREF="manual.html#luaL_register">luaL_register</A><BR>
<A HREF="manual.html#luaL_typename">luaL_typename</A><BR>
<A HREF="manual.html#luaL_typerror">luaL_typerror</A><BR>
<A HREF="manual.html#luaL_unref">luaL_unref</A><BR>
<A HREF="manual.html#luaL_where">luaL_where</A><BR>
</TD>
</TR>
</TABLE>
<P>
<HR>
<SMALL CLASS="footer">
Last update:
Mon Feb 13 18:53:32 BRST 2012
</SMALL>
<!--
Last change: revised for Lua 5.1.5
-->
</BODY>
</HTML>
| 22,482 | 44.146586 | 93 |
html
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/coverage.sh
|
#!/bin/sh
set -e
objdir=$1
suffix=$2
shift 2
objs=$@
gcov -b -p -f -o "${objdir}" ${objs}
# Move gcov outputs so that subsequent gcov invocations won't clobber results
# for the same sources with different compilation flags.
for f in `find . -maxdepth 1 -type f -name '*.gcov'` ; do
mv "${f}" "${f}.${suffix}"
done
| 321 | 17.941176 | 77 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/autogen.sh
|
#!/bin/sh
for i in autoconf; do
echo "$i"
$i
if [ $? -ne 0 ]; then
echo "Error $? in $i"
exit 1
fi
done
echo "./configure --enable-autogen $@"
./configure --enable-autogen $@
if [ $? -ne 0 ]; then
echo "Error $? in ./configure"
exit 1
fi
| 266 | 13.833333 | 38 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT-params.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SFMT_PARAMS_H
#define SFMT_PARAMS_H
#if !defined(MEXP)
#ifdef __GNUC__
#warning "MEXP is not defined. I assume MEXP is 19937."
#endif
#define MEXP 19937
#endif
/*-----------------
BASIC DEFINITIONS
-----------------*/
/** Mersenne Exponent. The period of the sequence
* is a multiple of 2^MEXP-1.
* #define MEXP 19937 */
/** SFMT generator has an internal state array of 128-bit integers,
* and N is its size. */
#define N (MEXP / 128 + 1)
/** N32 is the size of internal state array when regarded as an array
* of 32-bit integers.*/
#define N32 (N * 4)
/** N64 is the size of internal state array when regarded as an array
* of 64-bit integers.*/
#define N64 (N * 2)
/*----------------------
the parameters of SFMT
following definitions are in paramsXXXX.h file.
----------------------*/
/** the pick up position of the array.
#define POS1 122
*/
/** the parameter of shift left as four 32-bit registers.
#define SL1 18
*/
/** the parameter of shift left as one 128-bit register.
* The 128-bit integer is shifted by (SL2 * 8) bits.
#define SL2 1
*/
/** the parameter of shift right as four 32-bit registers.
#define SR1 11
*/
/** the parameter of shift right as one 128-bit register.
* The 128-bit integer is shifted by (SL2 * 8) bits.
#define SR2 1
*/
/** A bitmask, used in the recursion. These parameters are introduced
* to break symmetry of SIMD.
#define MSK1 0xdfffffefU
#define MSK2 0xddfecb7fU
#define MSK3 0xbffaffffU
#define MSK4 0xbffffff6U
*/
/** These definitions are part of a 128-bit period certification vector.
#define PARITY1 0x00000001U
#define PARITY2 0x00000000U
#define PARITY3 0x00000000U
#define PARITY4 0xc98e126aU
*/
#if MEXP == 607
#include "test/SFMT-params607.h"
#elif MEXP == 1279
#include "test/SFMT-params1279.h"
#elif MEXP == 2281
#include "test/SFMT-params2281.h"
#elif MEXP == 4253
#include "test/SFMT-params4253.h"
#elif MEXP == 11213
#include "test/SFMT-params11213.h"
#elif MEXP == 19937
#include "test/SFMT-params19937.h"
#elif MEXP == 44497
#include "test/SFMT-params44497.h"
#elif MEXP == 86243
#include "test/SFMT-params86243.h"
#elif MEXP == 132049
#include "test/SFMT-params132049.h"
#elif MEXP == 216091
#include "test/SFMT-params216091.h"
#else
#ifdef __GNUC__
#error "MEXP is not valid."
#undef MEXP
#else
#undef MEXP
#endif
#endif
#endif /* SFMT_PARAMS_H */
| 4,286 | 31.233083 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT-params4253.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SFMT_PARAMS4253_H
#define SFMT_PARAMS4253_H
#define POS1 17
#define SL1 20
#define SL2 1
#define SR1 7
#define SR2 1
#define MSK1 0x9f7bffffU
#define MSK2 0x9fffff5fU
#define MSK3 0x3efffffbU
#define MSK4 0xfffff7bbU
#define PARITY1 0xa8000001U
#define PARITY2 0xaf5390a3U
#define PARITY3 0xb740b3f8U
#define PARITY4 0x6c11486dU
/* PARAMETERS FOR ALTIVEC */
#if defined(__APPLE__) /* For OSX */
#define ALTI_SL1 (vector unsigned int)(SL1, SL1, SL1, SL1)
#define ALTI_SR1 (vector unsigned int)(SR1, SR1, SR1, SR1)
#define ALTI_MSK (vector unsigned int)(MSK1, MSK2, MSK3, MSK4)
#define ALTI_MSK64 \
(vector unsigned int)(MSK2, MSK1, MSK4, MSK3)
#define ALTI_SL2_PERM \
(vector unsigned char)(1,2,3,23,5,6,7,0,9,10,11,4,13,14,15,8)
#define ALTI_SL2_PERM64 \
(vector unsigned char)(1,2,3,4,5,6,7,31,9,10,11,12,13,14,15,0)
#define ALTI_SR2_PERM \
(vector unsigned char)(7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14)
#define ALTI_SR2_PERM64 \
(vector unsigned char)(15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14)
#else /* For OTHER OSs(Linux?) */
#define ALTI_SL1 {SL1, SL1, SL1, SL1}
#define ALTI_SR1 {SR1, SR1, SR1, SR1}
#define ALTI_MSK {MSK1, MSK2, MSK3, MSK4}
#define ALTI_MSK64 {MSK2, MSK1, MSK4, MSK3}
#define ALTI_SL2_PERM {1,2,3,23,5,6,7,0,9,10,11,4,13,14,15,8}
#define ALTI_SL2_PERM64 {1,2,3,4,5,6,7,31,9,10,11,12,13,14,15,0}
#define ALTI_SR2_PERM {7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14}
#define ALTI_SR2_PERM64 {15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14}
#endif /* For OSX */
#define IDSTR "SFMT-4253:17-20-1-7-1:9f7bffff-9fffff5f-3efffffb-fffff7bb"
#endif /* SFMT_PARAMS4253_H */
| 3,552 | 42.329268 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT-params607.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SFMT_PARAMS607_H
#define SFMT_PARAMS607_H
#define POS1 2
#define SL1 15
#define SL2 3
#define SR1 13
#define SR2 3
#define MSK1 0xfdff37ffU
#define MSK2 0xef7f3f7dU
#define MSK3 0xff777b7dU
#define MSK4 0x7ff7fb2fU
#define PARITY1 0x00000001U
#define PARITY2 0x00000000U
#define PARITY3 0x00000000U
#define PARITY4 0x5986f054U
/* PARAMETERS FOR ALTIVEC */
#if defined(__APPLE__) /* For OSX */
#define ALTI_SL1 (vector unsigned int)(SL1, SL1, SL1, SL1)
#define ALTI_SR1 (vector unsigned int)(SR1, SR1, SR1, SR1)
#define ALTI_MSK (vector unsigned int)(MSK1, MSK2, MSK3, MSK4)
#define ALTI_MSK64 \
(vector unsigned int)(MSK2, MSK1, MSK4, MSK3)
#define ALTI_SL2_PERM \
(vector unsigned char)(3,21,21,21,7,0,1,2,11,4,5,6,15,8,9,10)
#define ALTI_SL2_PERM64 \
(vector unsigned char)(3,4,5,6,7,29,29,29,11,12,13,14,15,0,1,2)
#define ALTI_SR2_PERM \
(vector unsigned char)(5,6,7,0,9,10,11,4,13,14,15,8,19,19,19,12)
#define ALTI_SR2_PERM64 \
(vector unsigned char)(13,14,15,0,1,2,3,4,19,19,19,8,9,10,11,12)
#else /* For OTHER OSs(Linux?) */
#define ALTI_SL1 {SL1, SL1, SL1, SL1}
#define ALTI_SR1 {SR1, SR1, SR1, SR1}
#define ALTI_MSK {MSK1, MSK2, MSK3, MSK4}
#define ALTI_MSK64 {MSK2, MSK1, MSK4, MSK3}
#define ALTI_SL2_PERM {3,21,21,21,7,0,1,2,11,4,5,6,15,8,9,10}
#define ALTI_SL2_PERM64 {3,4,5,6,7,29,29,29,11,12,13,14,15,0,1,2}
#define ALTI_SR2_PERM {5,6,7,0,9,10,11,4,13,14,15,8,19,19,19,12}
#define ALTI_SR2_PERM64 {13,14,15,0,1,2,3,4,19,19,19,8,9,10,11,12}
#endif /* For OSX */
#define IDSTR "SFMT-607:2-15-3-13-3:fdff37ff-ef7f3f7d-ff777b7d-7ff7fb2f"
#endif /* SFMT_PARAMS607_H */
| 3,558 | 42.402439 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT-params216091.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SFMT_PARAMS216091_H
#define SFMT_PARAMS216091_H
#define POS1 627
#define SL1 11
#define SL2 3
#define SR1 10
#define SR2 1
#define MSK1 0xbff7bff7U
#define MSK2 0xbfffffffU
#define MSK3 0xbffffa7fU
#define MSK4 0xffddfbfbU
#define PARITY1 0xf8000001U
#define PARITY2 0x89e80709U
#define PARITY3 0x3bd2b64bU
#define PARITY4 0x0c64b1e4U
/* PARAMETERS FOR ALTIVEC */
#if defined(__APPLE__) /* For OSX */
#define ALTI_SL1 (vector unsigned int)(SL1, SL1, SL1, SL1)
#define ALTI_SR1 (vector unsigned int)(SR1, SR1, SR1, SR1)
#define ALTI_MSK (vector unsigned int)(MSK1, MSK2, MSK3, MSK4)
#define ALTI_MSK64 \
(vector unsigned int)(MSK2, MSK1, MSK4, MSK3)
#define ALTI_SL2_PERM \
(vector unsigned char)(3,21,21,21,7,0,1,2,11,4,5,6,15,8,9,10)
#define ALTI_SL2_PERM64 \
(vector unsigned char)(3,4,5,6,7,29,29,29,11,12,13,14,15,0,1,2)
#define ALTI_SR2_PERM \
(vector unsigned char)(7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14)
#define ALTI_SR2_PERM64 \
(vector unsigned char)(15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14)
#else /* For OTHER OSs(Linux?) */
#define ALTI_SL1 {SL1, SL1, SL1, SL1}
#define ALTI_SR1 {SR1, SR1, SR1, SR1}
#define ALTI_MSK {MSK1, MSK2, MSK3, MSK4}
#define ALTI_MSK64 {MSK2, MSK1, MSK4, MSK3}
#define ALTI_SL2_PERM {3,21,21,21,7,0,1,2,11,4,5,6,15,8,9,10}
#define ALTI_SL2_PERM64 {3,4,5,6,7,29,29,29,11,12,13,14,15,0,1,2}
#define ALTI_SR2_PERM {7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14}
#define ALTI_SR2_PERM64 {15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14}
#endif /* For OSX */
#define IDSTR "SFMT-216091:627-11-3-10-1:bff7bff7-bfffffff-bffffa7f-ffddfbfb"
#endif /* SFMT_PARAMS216091_H */
| 3,566 | 42.5 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/mq.h
|
void mq_nanosleep(unsigned ns);
/*
* Simple templated message queue implementation that relies on only mutexes for
* synchronization (which reduces portability issues). Given the following
* setup:
*
* typedef struct mq_msg_s mq_msg_t;
* struct mq_msg_s {
* mq_msg(mq_msg_t) link;
* [message data]
* };
* mq_gen(, mq_, mq_t, mq_msg_t, link)
*
* The API is as follows:
*
* bool mq_init(mq_t *mq);
* void mq_fini(mq_t *mq);
* unsigned mq_count(mq_t *mq);
* mq_msg_t *mq_tryget(mq_t *mq);
* mq_msg_t *mq_get(mq_t *mq);
* void mq_put(mq_t *mq, mq_msg_t *msg);
*
* The message queue linkage embedded in each message is to be treated as
* externally opaque (no need to initialize or clean up externally). mq_fini()
* does not perform any cleanup of messages, since it knows nothing of their
* payloads.
*/
#define mq_msg(a_mq_msg_type) ql_elm(a_mq_msg_type)
#define mq_gen(a_attr, a_prefix, a_mq_type, a_mq_msg_type, a_field) \
typedef struct { \
mtx_t lock; \
ql_head(a_mq_msg_type) msgs; \
unsigned count; \
} a_mq_type; \
a_attr bool \
a_prefix##init(a_mq_type *mq) { \
\
if (mtx_init(&mq->lock)) \
return (true); \
ql_new(&mq->msgs); \
mq->count = 0; \
return (false); \
} \
a_attr void \
a_prefix##fini(a_mq_type *mq) \
{ \
\
mtx_fini(&mq->lock); \
} \
a_attr unsigned \
a_prefix##count(a_mq_type *mq) \
{ \
unsigned count; \
\
mtx_lock(&mq->lock); \
count = mq->count; \
mtx_unlock(&mq->lock); \
return (count); \
} \
a_attr a_mq_msg_type * \
a_prefix##tryget(a_mq_type *mq) \
{ \
a_mq_msg_type *msg; \
\
mtx_lock(&mq->lock); \
msg = ql_first(&mq->msgs); \
if (msg != NULL) { \
ql_head_remove(&mq->msgs, a_mq_msg_type, a_field); \
mq->count--; \
} \
mtx_unlock(&mq->lock); \
return (msg); \
} \
a_attr a_mq_msg_type * \
a_prefix##get(a_mq_type *mq) \
{ \
a_mq_msg_type *msg; \
unsigned ns; \
\
msg = a_prefix##tryget(mq); \
if (msg != NULL) \
return (msg); \
\
ns = 1; \
while (true) { \
mq_nanosleep(ns); \
msg = a_prefix##tryget(mq); \
if (msg != NULL) \
return (msg); \
if (ns < 1000*1000*1000) { \
/* Double sleep time, up to max 1 second. */ \
ns <<= 1; \
if (ns > 1000*1000*1000) \
ns = 1000*1000*1000; \
} \
} \
} \
a_attr void \
a_prefix##put(a_mq_type *mq, a_mq_msg_type *msg) \
{ \
\
mtx_lock(&mq->lock); \
ql_elm_new(msg, a_field); \
ql_tail_insert(&mq->msgs, msg, a_field); \
mq->count++; \
mtx_unlock(&mq->lock); \
}
| 2,902 | 25.390909 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/timer.h
|
/* Simple timer, for use in benchmark reporting. */
typedef struct {
nstime_t t0;
nstime_t t1;
} timedelta_t;
void timer_start(timedelta_t *timer);
void timer_stop(timedelta_t *timer);
uint64_t timer_usec(const timedelta_t *timer);
void timer_ratio(timedelta_t *a, timedelta_t *b, char *buf, size_t buflen);
| 312 | 25.083333 | 75 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/btalloc.h
|
/* btalloc() provides a mechanism for allocating via permuted backtraces. */
void *btalloc(size_t size, unsigned bits);
#define btalloc_n_proto(n) \
void *btalloc_##n(size_t size, unsigned bits);
btalloc_n_proto(0)
btalloc_n_proto(1)
#define btalloc_n_gen(n) \
void * \
btalloc_##n(size_t size, unsigned bits) \
{ \
void *p; \
\
if (bits == 0) \
p = mallocx(size, 0); \
else { \
switch (bits & 0x1U) { \
case 0: \
p = (btalloc_0(size, bits >> 1)); \
break; \
case 1: \
p = (btalloc_1(size, bits >> 1)); \
break; \
default: not_reached(); \
} \
} \
/* Intentionally sabotage tail call optimization. */ \
assert_ptr_not_null(p, "Unexpected mallocx() failure"); \
return (p); \
}
| 825 | 24.8125 | 76 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT-params1279.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SFMT_PARAMS1279_H
#define SFMT_PARAMS1279_H
#define POS1 7
#define SL1 14
#define SL2 3
#define SR1 5
#define SR2 1
#define MSK1 0xf7fefffdU
#define MSK2 0x7fefcfffU
#define MSK3 0xaff3ef3fU
#define MSK4 0xb5ffff7fU
#define PARITY1 0x00000001U
#define PARITY2 0x00000000U
#define PARITY3 0x00000000U
#define PARITY4 0x20000000U
/* PARAMETERS FOR ALTIVEC */
#if defined(__APPLE__) /* For OSX */
#define ALTI_SL1 (vector unsigned int)(SL1, SL1, SL1, SL1)
#define ALTI_SR1 (vector unsigned int)(SR1, SR1, SR1, SR1)
#define ALTI_MSK (vector unsigned int)(MSK1, MSK2, MSK3, MSK4)
#define ALTI_MSK64 \
(vector unsigned int)(MSK2, MSK1, MSK4, MSK3)
#define ALTI_SL2_PERM \
(vector unsigned char)(3,21,21,21,7,0,1,2,11,4,5,6,15,8,9,10)
#define ALTI_SL2_PERM64 \
(vector unsigned char)(3,4,5,6,7,29,29,29,11,12,13,14,15,0,1,2)
#define ALTI_SR2_PERM \
(vector unsigned char)(7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14)
#define ALTI_SR2_PERM64 \
(vector unsigned char)(15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14)
#else /* For OTHER OSs(Linux?) */
#define ALTI_SL1 {SL1, SL1, SL1, SL1}
#define ALTI_SR1 {SR1, SR1, SR1, SR1}
#define ALTI_MSK {MSK1, MSK2, MSK3, MSK4}
#define ALTI_MSK64 {MSK2, MSK1, MSK4, MSK3}
#define ALTI_SL2_PERM {3,21,21,21,7,0,1,2,11,4,5,6,15,8,9,10}
#define ALTI_SL2_PERM64 {3,4,5,6,7,29,29,29,11,12,13,14,15,0,1,2}
#define ALTI_SR2_PERM {7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14}
#define ALTI_SR2_PERM64 {15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14}
#endif /* For OSX */
#define IDSTR "SFMT-1279:7-14-3-5-1:f7fefffd-7fefcfff-aff3ef3f-b5ffff7f"
#endif /* SFMT_PARAMS1279_H */
| 3,552 | 42.329268 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT-params11213.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SFMT_PARAMS11213_H
#define SFMT_PARAMS11213_H
#define POS1 68
#define SL1 14
#define SL2 3
#define SR1 7
#define SR2 3
#define MSK1 0xeffff7fbU
#define MSK2 0xffffffefU
#define MSK3 0xdfdfbfffU
#define MSK4 0x7fffdbfdU
#define PARITY1 0x00000001U
#define PARITY2 0x00000000U
#define PARITY3 0xe8148000U
#define PARITY4 0xd0c7afa3U
/* PARAMETERS FOR ALTIVEC */
#if defined(__APPLE__) /* For OSX */
#define ALTI_SL1 (vector unsigned int)(SL1, SL1, SL1, SL1)
#define ALTI_SR1 (vector unsigned int)(SR1, SR1, SR1, SR1)
#define ALTI_MSK (vector unsigned int)(MSK1, MSK2, MSK3, MSK4)
#define ALTI_MSK64 \
(vector unsigned int)(MSK2, MSK1, MSK4, MSK3)
#define ALTI_SL2_PERM \
(vector unsigned char)(3,21,21,21,7,0,1,2,11,4,5,6,15,8,9,10)
#define ALTI_SL2_PERM64 \
(vector unsigned char)(3,4,5,6,7,29,29,29,11,12,13,14,15,0,1,2)
#define ALTI_SR2_PERM \
(vector unsigned char)(5,6,7,0,9,10,11,4,13,14,15,8,19,19,19,12)
#define ALTI_SR2_PERM64 \
(vector unsigned char)(13,14,15,0,1,2,3,4,19,19,19,8,9,10,11,12)
#else /* For OTHER OSs(Linux?) */
#define ALTI_SL1 {SL1, SL1, SL1, SL1}
#define ALTI_SR1 {SR1, SR1, SR1, SR1}
#define ALTI_MSK {MSK1, MSK2, MSK3, MSK4}
#define ALTI_MSK64 {MSK2, MSK1, MSK4, MSK3}
#define ALTI_SL2_PERM {3,21,21,21,7,0,1,2,11,4,5,6,15,8,9,10}
#define ALTI_SL2_PERM64 {3,4,5,6,7,29,29,29,11,12,13,14,15,0,1,2}
#define ALTI_SR2_PERM {5,6,7,0,9,10,11,4,13,14,15,8,19,19,19,12}
#define ALTI_SR2_PERM64 {13,14,15,0,1,2,3,4,19,19,19,8,9,10,11,12}
#endif /* For OSX */
#define IDSTR "SFMT-11213:68-14-3-7-3:effff7fb-ffffffef-dfdfbfff-7fffdbfd"
#endif /* SFMT_PARAMS11213_H */
| 3,566 | 42.5 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT-sse2.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @file SFMT-sse2.h
* @brief SIMD oriented Fast Mersenne Twister(SFMT) for Intel SSE2
*
* @author Mutsuo Saito (Hiroshima University)
* @author Makoto Matsumoto (Hiroshima University)
*
* @note We assume LITTLE ENDIAN in this file
*
* Copyright (C) 2006, 2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* The new BSD License is applied to this software, see LICENSE.txt
*/
#ifndef SFMT_SSE2_H
#define SFMT_SSE2_H
/**
* This function represents the recursion formula.
* @param a a 128-bit part of the interal state array
* @param b a 128-bit part of the interal state array
* @param c a 128-bit part of the interal state array
* @param d a 128-bit part of the interal state array
* @param mask 128-bit mask
* @return output
*/
JEMALLOC_ALWAYS_INLINE __m128i mm_recursion(__m128i *a, __m128i *b,
__m128i c, __m128i d, __m128i mask) {
__m128i v, x, y, z;
x = _mm_load_si128(a);
y = _mm_srli_epi32(*b, SR1);
z = _mm_srli_si128(c, SR2);
v = _mm_slli_epi32(d, SL1);
z = _mm_xor_si128(z, x);
z = _mm_xor_si128(z, v);
x = _mm_slli_si128(x, SL2);
y = _mm_and_si128(y, mask);
z = _mm_xor_si128(z, x);
z = _mm_xor_si128(z, y);
return z;
}
/**
* This function fills the internal state array with pseudorandom
* integers.
*/
JEMALLOC_INLINE void gen_rand_all(sfmt_t *ctx) {
int i;
__m128i r, r1, r2, mask;
mask = _mm_set_epi32(MSK4, MSK3, MSK2, MSK1);
r1 = _mm_load_si128(&ctx->sfmt[N - 2].si);
r2 = _mm_load_si128(&ctx->sfmt[N - 1].si);
for (i = 0; i < N - POS1; i++) {
r = mm_recursion(&ctx->sfmt[i].si, &ctx->sfmt[i + POS1].si, r1, r2,
mask);
_mm_store_si128(&ctx->sfmt[i].si, r);
r1 = r2;
r2 = r;
}
for (; i < N; i++) {
r = mm_recursion(&ctx->sfmt[i].si, &ctx->sfmt[i + POS1 - N].si, r1, r2,
mask);
_mm_store_si128(&ctx->sfmt[i].si, r);
r1 = r2;
r2 = r;
}
}
/**
* This function fills the user-specified array with pseudorandom
* integers.
*
* @param array an 128-bit array to be filled by pseudorandom numbers.
* @param size number of 128-bit pesudorandom numbers to be generated.
*/
JEMALLOC_INLINE void gen_rand_array(sfmt_t *ctx, w128_t *array, int size) {
int i, j;
__m128i r, r1, r2, mask;
mask = _mm_set_epi32(MSK4, MSK3, MSK2, MSK1);
r1 = _mm_load_si128(&ctx->sfmt[N - 2].si);
r2 = _mm_load_si128(&ctx->sfmt[N - 1].si);
for (i = 0; i < N - POS1; i++) {
r = mm_recursion(&ctx->sfmt[i].si, &ctx->sfmt[i + POS1].si, r1, r2,
mask);
_mm_store_si128(&array[i].si, r);
r1 = r2;
r2 = r;
}
for (; i < N; i++) {
r = mm_recursion(&ctx->sfmt[i].si, &array[i + POS1 - N].si, r1, r2,
mask);
_mm_store_si128(&array[i].si, r);
r1 = r2;
r2 = r;
}
/* main loop */
for (; i < size - N; i++) {
r = mm_recursion(&array[i - N].si, &array[i + POS1 - N].si, r1, r2,
mask);
_mm_store_si128(&array[i].si, r);
r1 = r2;
r2 = r;
}
for (j = 0; j < 2 * N - size; j++) {
r = _mm_load_si128(&array[j + size - N].si);
_mm_store_si128(&ctx->sfmt[j].si, r);
}
for (; i < size; i++) {
r = mm_recursion(&array[i - N].si, &array[i + POS1 - N].si, r1, r2,
mask);
_mm_store_si128(&array[i].si, r);
_mm_store_si128(&ctx->sfmt[j++].si, r);
r1 = r2;
r2 = r;
}
}
#endif
| 5,215 | 32.012658 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/math.h
|
#ifndef JEMALLOC_ENABLE_INLINE
double ln_gamma(double x);
double i_gamma(double x, double p, double ln_gamma_p);
double pt_norm(double p);
double pt_chi2(double p, double df, double ln_gamma_df_2);
double pt_gamma(double p, double shape, double scale, double ln_gamma_shape);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(MATH_C_))
/*
* Compute the natural log of Gamma(x), accurate to 10 decimal places.
*
* This implementation is based on:
*
* Pike, M.C., I.D. Hill (1966) Algorithm 291: Logarithm of Gamma function
* [S14]. Communications of the ACM 9(9):684.
*/
JEMALLOC_INLINE double
ln_gamma(double x)
{
double f, z;
assert(x > 0.0);
if (x < 7.0) {
f = 1.0;
z = x;
while (z < 7.0) {
f *= z;
z += 1.0;
}
x = z;
f = -log(f);
} else
f = 0.0;
z = 1.0 / (x * x);
return (f + (x-0.5) * log(x) - x + 0.918938533204673 +
(((-0.000595238095238 * z + 0.000793650793651) * z -
0.002777777777778) * z + 0.083333333333333) / x);
}
/*
* Compute the incomplete Gamma ratio for [0..x], where p is the shape
* parameter, and ln_gamma_p is ln_gamma(p).
*
* This implementation is based on:
*
* Bhattacharjee, G.P. (1970) Algorithm AS 32: The incomplete Gamma integral.
* Applied Statistics 19:285-287.
*/
JEMALLOC_INLINE double
i_gamma(double x, double p, double ln_gamma_p)
{
double acu, factor, oflo, gin, term, rn, a, b, an, dif;
double pn[6];
unsigned i;
assert(p > 0.0);
assert(x >= 0.0);
if (x == 0.0)
return (0.0);
acu = 1.0e-10;
oflo = 1.0e30;
gin = 0.0;
factor = exp(p * log(x) - x - ln_gamma_p);
if (x <= 1.0 || x < p) {
/* Calculation by series expansion. */
gin = 1.0;
term = 1.0;
rn = p;
while (true) {
rn += 1.0;
term *= x / rn;
gin += term;
if (term <= acu) {
gin *= factor / p;
return (gin);
}
}
} else {
/* Calculation by continued fraction. */
a = 1.0 - p;
b = a + x + 1.0;
term = 0.0;
pn[0] = 1.0;
pn[1] = x;
pn[2] = x + 1.0;
pn[3] = x * b;
gin = pn[2] / pn[3];
while (true) {
a += 1.0;
b += 2.0;
term += 1.0;
an = a * term;
for (i = 0; i < 2; i++)
pn[i+4] = b * pn[i+2] - an * pn[i];
if (pn[5] != 0.0) {
rn = pn[4] / pn[5];
dif = fabs(gin - rn);
if (dif <= acu && dif <= acu * rn) {
gin = 1.0 - factor * gin;
return (gin);
}
gin = rn;
}
for (i = 0; i < 4; i++)
pn[i] = pn[i+2];
if (fabs(pn[4]) >= oflo) {
for (i = 0; i < 4; i++)
pn[i] /= oflo;
}
}
}
}
/*
* Given a value p in [0..1] of the lower tail area of the normal distribution,
* compute the limit on the definite integral from [-inf..z] that satisfies p,
* accurate to 16 decimal places.
*
* This implementation is based on:
*
* Wichura, M.J. (1988) Algorithm AS 241: The percentage points of the normal
* distribution. Applied Statistics 37(3):477-484.
*/
JEMALLOC_INLINE double
pt_norm(double p)
{
double q, r, ret;
assert(p > 0.0 && p < 1.0);
q = p - 0.5;
if (fabs(q) <= 0.425) {
/* p close to 1/2. */
r = 0.180625 - q * q;
return (q * (((((((2.5090809287301226727e3 * r +
3.3430575583588128105e4) * r + 6.7265770927008700853e4) * r
+ 4.5921953931549871457e4) * r + 1.3731693765509461125e4) *
r + 1.9715909503065514427e3) * r + 1.3314166789178437745e2)
* r + 3.3871328727963666080e0) /
(((((((5.2264952788528545610e3 * r +
2.8729085735721942674e4) * r + 3.9307895800092710610e4) * r
+ 2.1213794301586595867e4) * r + 5.3941960214247511077e3) *
r + 6.8718700749205790830e2) * r + 4.2313330701600911252e1)
* r + 1.0));
} else {
if (q < 0.0)
r = p;
else
r = 1.0 - p;
assert(r > 0.0);
r = sqrt(-log(r));
if (r <= 5.0) {
/* p neither close to 1/2 nor 0 or 1. */
r -= 1.6;
ret = ((((((((7.74545014278341407640e-4 * r +
2.27238449892691845833e-2) * r +
2.41780725177450611770e-1) * r +
1.27045825245236838258e0) * r +
3.64784832476320460504e0) * r +
5.76949722146069140550e0) * r +
4.63033784615654529590e0) * r +
1.42343711074968357734e0) /
(((((((1.05075007164441684324e-9 * r +
5.47593808499534494600e-4) * r +
1.51986665636164571966e-2)
* r + 1.48103976427480074590e-1) * r +
6.89767334985100004550e-1) * r +
1.67638483018380384940e0) * r +
2.05319162663775882187e0) * r + 1.0));
} else {
/* p near 0 or 1. */
r -= 5.0;
ret = ((((((((2.01033439929228813265e-7 * r +
2.71155556874348757815e-5) * r +
1.24266094738807843860e-3) * r +
2.65321895265761230930e-2) * r +
2.96560571828504891230e-1) * r +
1.78482653991729133580e0) * r +
5.46378491116411436990e0) * r +
6.65790464350110377720e0) /
(((((((2.04426310338993978564e-15 * r +
1.42151175831644588870e-7) * r +
1.84631831751005468180e-5) * r +
7.86869131145613259100e-4) * r +
1.48753612908506148525e-2) * r +
1.36929880922735805310e-1) * r +
5.99832206555887937690e-1)
* r + 1.0));
}
if (q < 0.0)
ret = -ret;
return (ret);
}
}
/*
* Given a value p in [0..1] of the lower tail area of the Chi^2 distribution
* with df degrees of freedom, where ln_gamma_df_2 is ln_gamma(df/2.0), compute
* the upper limit on the definite integral from [0..z] that satisfies p,
* accurate to 12 decimal places.
*
* This implementation is based on:
*
* Best, D.J., D.E. Roberts (1975) Algorithm AS 91: The percentage points of
* the Chi^2 distribution. Applied Statistics 24(3):385-388.
*
* Shea, B.L. (1991) Algorithm AS R85: A remark on AS 91: The percentage
* points of the Chi^2 distribution. Applied Statistics 40(1):233-235.
*/
JEMALLOC_INLINE double
pt_chi2(double p, double df, double ln_gamma_df_2)
{
double e, aa, xx, c, ch, a, q, p1, p2, t, x, b, s1, s2, s3, s4, s5, s6;
unsigned i;
assert(p >= 0.0 && p < 1.0);
assert(df > 0.0);
e = 5.0e-7;
aa = 0.6931471805;
xx = 0.5 * df;
c = xx - 1.0;
if (df < -1.24 * log(p)) {
/* Starting approximation for small Chi^2. */
ch = pow(p * xx * exp(ln_gamma_df_2 + xx * aa), 1.0 / xx);
if (ch - e < 0.0)
return (ch);
} else {
if (df > 0.32) {
x = pt_norm(p);
/*
* Starting approximation using Wilson and Hilferty
* estimate.
*/
p1 = 0.222222 / df;
ch = df * pow(x * sqrt(p1) + 1.0 - p1, 3.0);
/* Starting approximation for p tending to 1. */
if (ch > 2.2 * df + 6.0) {
ch = -2.0 * (log(1.0 - p) - c * log(0.5 * ch) +
ln_gamma_df_2);
}
} else {
ch = 0.4;
a = log(1.0 - p);
while (true) {
q = ch;
p1 = 1.0 + ch * (4.67 + ch);
p2 = ch * (6.73 + ch * (6.66 + ch));
t = -0.5 + (4.67 + 2.0 * ch) / p1 - (6.73 + ch
* (13.32 + 3.0 * ch)) / p2;
ch -= (1.0 - exp(a + ln_gamma_df_2 + 0.5 * ch +
c * aa) * p2 / p1) / t;
if (fabs(q / ch - 1.0) - 0.01 <= 0.0)
break;
}
}
}
for (i = 0; i < 20; i++) {
/* Calculation of seven-term Taylor series. */
q = ch;
p1 = 0.5 * ch;
if (p1 < 0.0)
return (-1.0);
p2 = p - i_gamma(p1, xx, ln_gamma_df_2);
t = p2 * exp(xx * aa + ln_gamma_df_2 + p1 - c * log(ch));
b = t / ch;
a = 0.5 * t - b * c;
s1 = (210.0 + a * (140.0 + a * (105.0 + a * (84.0 + a * (70.0 +
60.0 * a))))) / 420.0;
s2 = (420.0 + a * (735.0 + a * (966.0 + a * (1141.0 + 1278.0 *
a)))) / 2520.0;
s3 = (210.0 + a * (462.0 + a * (707.0 + 932.0 * a))) / 2520.0;
s4 = (252.0 + a * (672.0 + 1182.0 * a) + c * (294.0 + a *
(889.0 + 1740.0 * a))) / 5040.0;
s5 = (84.0 + 264.0 * a + c * (175.0 + 606.0 * a)) / 2520.0;
s6 = (120.0 + c * (346.0 + 127.0 * c)) / 5040.0;
ch += t * (1.0 + 0.5 * t * s1 - b * c * (s1 - b * (s2 - b * (s3
- b * (s4 - b * (s5 - b * s6))))));
if (fabs(q / ch - 1.0) <= e)
break;
}
return (ch);
}
/*
* Given a value p in [0..1] and Gamma distribution shape and scale parameters,
* compute the upper limit on the definite integral from [0..z] that satisfies
* p.
*/
JEMALLOC_INLINE double
pt_gamma(double p, double shape, double scale, double ln_gamma_shape)
{
return (pt_chi2(p, shape * 2.0, ln_gamma_shape) * 0.5 * scale);
}
#endif
| 8,172 | 25.195513 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/mtx.h
|
/*
* mtx is a slightly simplified version of malloc_mutex. This code duplication
* is unfortunate, but there are allocator bootstrapping considerations that
* would leak into the test infrastructure if malloc_mutex were used directly
* in tests.
*/
typedef struct {
#ifdef _WIN32
CRITICAL_SECTION lock;
#elif (defined(JEMALLOC_OS_UNFAIR_LOCK))
os_unfair_lock lock;
#elif (defined(JEMALLOC_OSSPIN))
OSSpinLock lock;
#else
pthread_mutex_t lock;
#endif
} mtx_t;
bool mtx_init(mtx_t *mtx);
void mtx_fini(mtx_t *mtx);
void mtx_lock(mtx_t *mtx);
void mtx_unlock(mtx_t *mtx);
| 584 | 23.375 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT-params2281.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SFMT_PARAMS2281_H
#define SFMT_PARAMS2281_H
#define POS1 12
#define SL1 19
#define SL2 1
#define SR1 5
#define SR2 1
#define MSK1 0xbff7ffbfU
#define MSK2 0xfdfffffeU
#define MSK3 0xf7ffef7fU
#define MSK4 0xf2f7cbbfU
#define PARITY1 0x00000001U
#define PARITY2 0x00000000U
#define PARITY3 0x00000000U
#define PARITY4 0x41dfa600U
/* PARAMETERS FOR ALTIVEC */
#if defined(__APPLE__) /* For OSX */
#define ALTI_SL1 (vector unsigned int)(SL1, SL1, SL1, SL1)
#define ALTI_SR1 (vector unsigned int)(SR1, SR1, SR1, SR1)
#define ALTI_MSK (vector unsigned int)(MSK1, MSK2, MSK3, MSK4)
#define ALTI_MSK64 \
(vector unsigned int)(MSK2, MSK1, MSK4, MSK3)
#define ALTI_SL2_PERM \
(vector unsigned char)(1,2,3,23,5,6,7,0,9,10,11,4,13,14,15,8)
#define ALTI_SL2_PERM64 \
(vector unsigned char)(1,2,3,4,5,6,7,31,9,10,11,12,13,14,15,0)
#define ALTI_SR2_PERM \
(vector unsigned char)(7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14)
#define ALTI_SR2_PERM64 \
(vector unsigned char)(15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14)
#else /* For OTHER OSs(Linux?) */
#define ALTI_SL1 {SL1, SL1, SL1, SL1}
#define ALTI_SR1 {SR1, SR1, SR1, SR1}
#define ALTI_MSK {MSK1, MSK2, MSK3, MSK4}
#define ALTI_MSK64 {MSK2, MSK1, MSK4, MSK3}
#define ALTI_SL2_PERM {1,2,3,23,5,6,7,0,9,10,11,4,13,14,15,8}
#define ALTI_SL2_PERM64 {1,2,3,4,5,6,7,31,9,10,11,12,13,14,15,0}
#define ALTI_SR2_PERM {7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14}
#define ALTI_SR2_PERM64 {15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14}
#endif /* For OSX */
#define IDSTR "SFMT-2281:12-19-1-5-1:bff7ffbf-fdfffffe-f7ffef7f-f2f7cbbf"
#endif /* SFMT_PARAMS2281_H */
| 3,552 | 42.329268 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT-params19937.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SFMT_PARAMS19937_H
#define SFMT_PARAMS19937_H
#define POS1 122
#define SL1 18
#define SL2 1
#define SR1 11
#define SR2 1
#define MSK1 0xdfffffefU
#define MSK2 0xddfecb7fU
#define MSK3 0xbffaffffU
#define MSK4 0xbffffff6U
#define PARITY1 0x00000001U
#define PARITY2 0x00000000U
#define PARITY3 0x00000000U
#define PARITY4 0x13c9e684U
/* PARAMETERS FOR ALTIVEC */
#if defined(__APPLE__) /* For OSX */
#define ALTI_SL1 (vector unsigned int)(SL1, SL1, SL1, SL1)
#define ALTI_SR1 (vector unsigned int)(SR1, SR1, SR1, SR1)
#define ALTI_MSK (vector unsigned int)(MSK1, MSK2, MSK3, MSK4)
#define ALTI_MSK64 \
(vector unsigned int)(MSK2, MSK1, MSK4, MSK3)
#define ALTI_SL2_PERM \
(vector unsigned char)(1,2,3,23,5,6,7,0,9,10,11,4,13,14,15,8)
#define ALTI_SL2_PERM64 \
(vector unsigned char)(1,2,3,4,5,6,7,31,9,10,11,12,13,14,15,0)
#define ALTI_SR2_PERM \
(vector unsigned char)(7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14)
#define ALTI_SR2_PERM64 \
(vector unsigned char)(15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14)
#else /* For OTHER OSs(Linux?) */
#define ALTI_SL1 {SL1, SL1, SL1, SL1}
#define ALTI_SR1 {SR1, SR1, SR1, SR1}
#define ALTI_MSK {MSK1, MSK2, MSK3, MSK4}
#define ALTI_MSK64 {MSK2, MSK1, MSK4, MSK3}
#define ALTI_SL2_PERM {1,2,3,23,5,6,7,0,9,10,11,4,13,14,15,8}
#define ALTI_SL2_PERM64 {1,2,3,4,5,6,7,31,9,10,11,12,13,14,15,0}
#define ALTI_SR2_PERM {7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14}
#define ALTI_SR2_PERM64 {15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14}
#endif /* For OSX */
#define IDSTR "SFMT-19937:122-18-1-11-1:dfffffef-ddfecb7f-bffaffff-bffffff6"
#endif /* SFMT_PARAMS19937_H */
| 3,560 | 42.426829 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/test.h
|
#define ASSERT_BUFSIZE 256
#define assert_cmp(t, a, b, cmp, neg_cmp, pri, ...) do { \
t a_ = (a); \
t b_ = (b); \
if (!(a_ cmp b_)) { \
char prefix[ASSERT_BUFSIZE]; \
char message[ASSERT_BUFSIZE]; \
malloc_snprintf(prefix, sizeof(prefix), \
"%s:%s:%d: Failed assertion: " \
"(%s) "#cmp" (%s) --> " \
"%"pri" "#neg_cmp" %"pri": ", \
__func__, __FILE__, __LINE__, \
#a, #b, a_, b_); \
malloc_snprintf(message, sizeof(message), __VA_ARGS__); \
p_test_fail(prefix, message); \
} \
} while (0)
#define assert_ptr_eq(a, b, ...) assert_cmp(void *, a, b, ==, \
!=, "p", __VA_ARGS__)
#define assert_ptr_ne(a, b, ...) assert_cmp(void *, a, b, !=, \
==, "p", __VA_ARGS__)
#define assert_ptr_null(a, ...) assert_cmp(void *, a, NULL, ==, \
!=, "p", __VA_ARGS__)
#define assert_ptr_not_null(a, ...) assert_cmp(void *, a, NULL, !=, \
==, "p", __VA_ARGS__)
#define assert_c_eq(a, b, ...) assert_cmp(char, a, b, ==, !=, "c", __VA_ARGS__)
#define assert_c_ne(a, b, ...) assert_cmp(char, a, b, !=, ==, "c", __VA_ARGS__)
#define assert_c_lt(a, b, ...) assert_cmp(char, a, b, <, >=, "c", __VA_ARGS__)
#define assert_c_le(a, b, ...) assert_cmp(char, a, b, <=, >, "c", __VA_ARGS__)
#define assert_c_ge(a, b, ...) assert_cmp(char, a, b, >=, <, "c", __VA_ARGS__)
#define assert_c_gt(a, b, ...) assert_cmp(char, a, b, >, <=, "c", __VA_ARGS__)
#define assert_x_eq(a, b, ...) assert_cmp(int, a, b, ==, !=, "#x", __VA_ARGS__)
#define assert_x_ne(a, b, ...) assert_cmp(int, a, b, !=, ==, "#x", __VA_ARGS__)
#define assert_x_lt(a, b, ...) assert_cmp(int, a, b, <, >=, "#x", __VA_ARGS__)
#define assert_x_le(a, b, ...) assert_cmp(int, a, b, <=, >, "#x", __VA_ARGS__)
#define assert_x_ge(a, b, ...) assert_cmp(int, a, b, >=, <, "#x", __VA_ARGS__)
#define assert_x_gt(a, b, ...) assert_cmp(int, a, b, >, <=, "#x", __VA_ARGS__)
#define assert_d_eq(a, b, ...) assert_cmp(int, a, b, ==, !=, "d", __VA_ARGS__)
#define assert_d_ne(a, b, ...) assert_cmp(int, a, b, !=, ==, "d", __VA_ARGS__)
#define assert_d_lt(a, b, ...) assert_cmp(int, a, b, <, >=, "d", __VA_ARGS__)
#define assert_d_le(a, b, ...) assert_cmp(int, a, b, <=, >, "d", __VA_ARGS__)
#define assert_d_ge(a, b, ...) assert_cmp(int, a, b, >=, <, "d", __VA_ARGS__)
#define assert_d_gt(a, b, ...) assert_cmp(int, a, b, >, <=, "d", __VA_ARGS__)
#define assert_u_eq(a, b, ...) assert_cmp(int, a, b, ==, !=, "u", __VA_ARGS__)
#define assert_u_ne(a, b, ...) assert_cmp(int, a, b, !=, ==, "u", __VA_ARGS__)
#define assert_u_lt(a, b, ...) assert_cmp(int, a, b, <, >=, "u", __VA_ARGS__)
#define assert_u_le(a, b, ...) assert_cmp(int, a, b, <=, >, "u", __VA_ARGS__)
#define assert_u_ge(a, b, ...) assert_cmp(int, a, b, >=, <, "u", __VA_ARGS__)
#define assert_u_gt(a, b, ...) assert_cmp(int, a, b, >, <=, "u", __VA_ARGS__)
#define assert_ld_eq(a, b, ...) assert_cmp(long, a, b, ==, \
!=, "ld", __VA_ARGS__)
#define assert_ld_ne(a, b, ...) assert_cmp(long, a, b, !=, \
==, "ld", __VA_ARGS__)
#define assert_ld_lt(a, b, ...) assert_cmp(long, a, b, <, \
>=, "ld", __VA_ARGS__)
#define assert_ld_le(a, b, ...) assert_cmp(long, a, b, <=, \
>, "ld", __VA_ARGS__)
#define assert_ld_ge(a, b, ...) assert_cmp(long, a, b, >=, \
<, "ld", __VA_ARGS__)
#define assert_ld_gt(a, b, ...) assert_cmp(long, a, b, >, \
<=, "ld", __VA_ARGS__)
#define assert_lu_eq(a, b, ...) assert_cmp(unsigned long, \
a, b, ==, !=, "lu", __VA_ARGS__)
#define assert_lu_ne(a, b, ...) assert_cmp(unsigned long, \
a, b, !=, ==, "lu", __VA_ARGS__)
#define assert_lu_lt(a, b, ...) assert_cmp(unsigned long, \
a, b, <, >=, "lu", __VA_ARGS__)
#define assert_lu_le(a, b, ...) assert_cmp(unsigned long, \
a, b, <=, >, "lu", __VA_ARGS__)
#define assert_lu_ge(a, b, ...) assert_cmp(unsigned long, \
a, b, >=, <, "lu", __VA_ARGS__)
#define assert_lu_gt(a, b, ...) assert_cmp(unsigned long, \
a, b, >, <=, "lu", __VA_ARGS__)
#define assert_qd_eq(a, b, ...) assert_cmp(long long, a, b, ==, \
!=, "qd", __VA_ARGS__)
#define assert_qd_ne(a, b, ...) assert_cmp(long long, a, b, !=, \
==, "qd", __VA_ARGS__)
#define assert_qd_lt(a, b, ...) assert_cmp(long long, a, b, <, \
>=, "qd", __VA_ARGS__)
#define assert_qd_le(a, b, ...) assert_cmp(long long, a, b, <=, \
>, "qd", __VA_ARGS__)
#define assert_qd_ge(a, b, ...) assert_cmp(long long, a, b, >=, \
<, "qd", __VA_ARGS__)
#define assert_qd_gt(a, b, ...) assert_cmp(long long, a, b, >, \
<=, "qd", __VA_ARGS__)
#define assert_qu_eq(a, b, ...) assert_cmp(unsigned long long, \
a, b, ==, !=, "qu", __VA_ARGS__)
#define assert_qu_ne(a, b, ...) assert_cmp(unsigned long long, \
a, b, !=, ==, "qu", __VA_ARGS__)
#define assert_qu_lt(a, b, ...) assert_cmp(unsigned long long, \
a, b, <, >=, "qu", __VA_ARGS__)
#define assert_qu_le(a, b, ...) assert_cmp(unsigned long long, \
a, b, <=, >, "qu", __VA_ARGS__)
#define assert_qu_ge(a, b, ...) assert_cmp(unsigned long long, \
a, b, >=, <, "qu", __VA_ARGS__)
#define assert_qu_gt(a, b, ...) assert_cmp(unsigned long long, \
a, b, >, <=, "qu", __VA_ARGS__)
#define assert_jd_eq(a, b, ...) assert_cmp(intmax_t, a, b, ==, \
!=, "jd", __VA_ARGS__)
#define assert_jd_ne(a, b, ...) assert_cmp(intmax_t, a, b, !=, \
==, "jd", __VA_ARGS__)
#define assert_jd_lt(a, b, ...) assert_cmp(intmax_t, a, b, <, \
>=, "jd", __VA_ARGS__)
#define assert_jd_le(a, b, ...) assert_cmp(intmax_t, a, b, <=, \
>, "jd", __VA_ARGS__)
#define assert_jd_ge(a, b, ...) assert_cmp(intmax_t, a, b, >=, \
<, "jd", __VA_ARGS__)
#define assert_jd_gt(a, b, ...) assert_cmp(intmax_t, a, b, >, \
<=, "jd", __VA_ARGS__)
#define assert_ju_eq(a, b, ...) assert_cmp(uintmax_t, a, b, ==, \
!=, "ju", __VA_ARGS__)
#define assert_ju_ne(a, b, ...) assert_cmp(uintmax_t, a, b, !=, \
==, "ju", __VA_ARGS__)
#define assert_ju_lt(a, b, ...) assert_cmp(uintmax_t, a, b, <, \
>=, "ju", __VA_ARGS__)
#define assert_ju_le(a, b, ...) assert_cmp(uintmax_t, a, b, <=, \
>, "ju", __VA_ARGS__)
#define assert_ju_ge(a, b, ...) assert_cmp(uintmax_t, a, b, >=, \
<, "ju", __VA_ARGS__)
#define assert_ju_gt(a, b, ...) assert_cmp(uintmax_t, a, b, >, \
<=, "ju", __VA_ARGS__)
#define assert_zd_eq(a, b, ...) assert_cmp(ssize_t, a, b, ==, \
!=, "zd", __VA_ARGS__)
#define assert_zd_ne(a, b, ...) assert_cmp(ssize_t, a, b, !=, \
==, "zd", __VA_ARGS__)
#define assert_zd_lt(a, b, ...) assert_cmp(ssize_t, a, b, <, \
>=, "zd", __VA_ARGS__)
#define assert_zd_le(a, b, ...) assert_cmp(ssize_t, a, b, <=, \
>, "zd", __VA_ARGS__)
#define assert_zd_ge(a, b, ...) assert_cmp(ssize_t, a, b, >=, \
<, "zd", __VA_ARGS__)
#define assert_zd_gt(a, b, ...) assert_cmp(ssize_t, a, b, >, \
<=, "zd", __VA_ARGS__)
#define assert_zu_eq(a, b, ...) assert_cmp(size_t, a, b, ==, \
!=, "zu", __VA_ARGS__)
#define assert_zu_ne(a, b, ...) assert_cmp(size_t, a, b, !=, \
==, "zu", __VA_ARGS__)
#define assert_zu_lt(a, b, ...) assert_cmp(size_t, a, b, <, \
>=, "zu", __VA_ARGS__)
#define assert_zu_le(a, b, ...) assert_cmp(size_t, a, b, <=, \
>, "zu", __VA_ARGS__)
#define assert_zu_ge(a, b, ...) assert_cmp(size_t, a, b, >=, \
<, "zu", __VA_ARGS__)
#define assert_zu_gt(a, b, ...) assert_cmp(size_t, a, b, >, \
<=, "zu", __VA_ARGS__)
#define assert_d32_eq(a, b, ...) assert_cmp(int32_t, a, b, ==, \
!=, FMTd32, __VA_ARGS__)
#define assert_d32_ne(a, b, ...) assert_cmp(int32_t, a, b, !=, \
==, FMTd32, __VA_ARGS__)
#define assert_d32_lt(a, b, ...) assert_cmp(int32_t, a, b, <, \
>=, FMTd32, __VA_ARGS__)
#define assert_d32_le(a, b, ...) assert_cmp(int32_t, a, b, <=, \
>, FMTd32, __VA_ARGS__)
#define assert_d32_ge(a, b, ...) assert_cmp(int32_t, a, b, >=, \
<, FMTd32, __VA_ARGS__)
#define assert_d32_gt(a, b, ...) assert_cmp(int32_t, a, b, >, \
<=, FMTd32, __VA_ARGS__)
#define assert_u32_eq(a, b, ...) assert_cmp(uint32_t, a, b, ==, \
!=, FMTu32, __VA_ARGS__)
#define assert_u32_ne(a, b, ...) assert_cmp(uint32_t, a, b, !=, \
==, FMTu32, __VA_ARGS__)
#define assert_u32_lt(a, b, ...) assert_cmp(uint32_t, a, b, <, \
>=, FMTu32, __VA_ARGS__)
#define assert_u32_le(a, b, ...) assert_cmp(uint32_t, a, b, <=, \
>, FMTu32, __VA_ARGS__)
#define assert_u32_ge(a, b, ...) assert_cmp(uint32_t, a, b, >=, \
<, FMTu32, __VA_ARGS__)
#define assert_u32_gt(a, b, ...) assert_cmp(uint32_t, a, b, >, \
<=, FMTu32, __VA_ARGS__)
#define assert_d64_eq(a, b, ...) assert_cmp(int64_t, a, b, ==, \
!=, FMTd64, __VA_ARGS__)
#define assert_d64_ne(a, b, ...) assert_cmp(int64_t, a, b, !=, \
==, FMTd64, __VA_ARGS__)
#define assert_d64_lt(a, b, ...) assert_cmp(int64_t, a, b, <, \
>=, FMTd64, __VA_ARGS__)
#define assert_d64_le(a, b, ...) assert_cmp(int64_t, a, b, <=, \
>, FMTd64, __VA_ARGS__)
#define assert_d64_ge(a, b, ...) assert_cmp(int64_t, a, b, >=, \
<, FMTd64, __VA_ARGS__)
#define assert_d64_gt(a, b, ...) assert_cmp(int64_t, a, b, >, \
<=, FMTd64, __VA_ARGS__)
#define assert_u64_eq(a, b, ...) assert_cmp(uint64_t, a, b, ==, \
!=, FMTu64, __VA_ARGS__)
#define assert_u64_ne(a, b, ...) assert_cmp(uint64_t, a, b, !=, \
==, FMTu64, __VA_ARGS__)
#define assert_u64_lt(a, b, ...) assert_cmp(uint64_t, a, b, <, \
>=, FMTu64, __VA_ARGS__)
#define assert_u64_le(a, b, ...) assert_cmp(uint64_t, a, b, <=, \
>, FMTu64, __VA_ARGS__)
#define assert_u64_ge(a, b, ...) assert_cmp(uint64_t, a, b, >=, \
<, FMTu64, __VA_ARGS__)
#define assert_u64_gt(a, b, ...) assert_cmp(uint64_t, a, b, >, \
<=, FMTu64, __VA_ARGS__)
#define assert_b_eq(a, b, ...) do { \
bool a_ = (a); \
bool b_ = (b); \
if (!(a_ == b_)) { \
char prefix[ASSERT_BUFSIZE]; \
char message[ASSERT_BUFSIZE]; \
malloc_snprintf(prefix, sizeof(prefix), \
"%s:%s:%d: Failed assertion: " \
"(%s) == (%s) --> %s != %s: ", \
__func__, __FILE__, __LINE__, \
#a, #b, a_ ? "true" : "false", \
b_ ? "true" : "false"); \
malloc_snprintf(message, sizeof(message), __VA_ARGS__); \
p_test_fail(prefix, message); \
} \
} while (0)
#define assert_b_ne(a, b, ...) do { \
bool a_ = (a); \
bool b_ = (b); \
if (!(a_ != b_)) { \
char prefix[ASSERT_BUFSIZE]; \
char message[ASSERT_BUFSIZE]; \
malloc_snprintf(prefix, sizeof(prefix), \
"%s:%s:%d: Failed assertion: " \
"(%s) != (%s) --> %s == %s: ", \
__func__, __FILE__, __LINE__, \
#a, #b, a_ ? "true" : "false", \
b_ ? "true" : "false"); \
malloc_snprintf(message, sizeof(message), __VA_ARGS__); \
p_test_fail(prefix, message); \
} \
} while (0)
#define assert_true(a, ...) assert_b_eq(a, true, __VA_ARGS__)
#define assert_false(a, ...) assert_b_eq(a, false, __VA_ARGS__)
#define assert_str_eq(a, b, ...) do { \
if (strcmp((a), (b))) { \
char prefix[ASSERT_BUFSIZE]; \
char message[ASSERT_BUFSIZE]; \
malloc_snprintf(prefix, sizeof(prefix), \
"%s:%s:%d: Failed assertion: " \
"(%s) same as (%s) --> " \
"\"%s\" differs from \"%s\": ", \
__func__, __FILE__, __LINE__, #a, #b, a, b); \
malloc_snprintf(message, sizeof(message), __VA_ARGS__); \
p_test_fail(prefix, message); \
} \
} while (0)
#define assert_str_ne(a, b, ...) do { \
if (!strcmp((a), (b))) { \
char prefix[ASSERT_BUFSIZE]; \
char message[ASSERT_BUFSIZE]; \
malloc_snprintf(prefix, sizeof(prefix), \
"%s:%s:%d: Failed assertion: " \
"(%s) differs from (%s) --> " \
"\"%s\" same as \"%s\": ", \
__func__, __FILE__, __LINE__, #a, #b, a, b); \
malloc_snprintf(message, sizeof(message), __VA_ARGS__); \
p_test_fail(prefix, message); \
} \
} while (0)
#define assert_not_reached(...) do { \
char prefix[ASSERT_BUFSIZE]; \
char message[ASSERT_BUFSIZE]; \
malloc_snprintf(prefix, sizeof(prefix), \
"%s:%s:%d: Unreachable code reached: ", \
__func__, __FILE__, __LINE__); \
malloc_snprintf(message, sizeof(message), __VA_ARGS__); \
p_test_fail(prefix, message); \
} while (0)
/*
* If this enum changes, corresponding changes in test/test.sh.in are also
* necessary.
*/
typedef enum {
test_status_pass = 0,
test_status_skip = 1,
test_status_fail = 2,
test_status_count = 3
} test_status_t;
typedef void (test_t)(void);
#define TEST_BEGIN(f) \
static void \
f(void) \
{ \
p_test_init(#f);
#define TEST_END \
goto label_test_end; \
label_test_end: \
p_test_fini(); \
}
#define test(...) \
p_test(__VA_ARGS__, NULL)
#define test_no_malloc_init(...) \
p_test_no_malloc_init(__VA_ARGS__, NULL)
#define test_skip_if(e) do { \
if (e) { \
test_skip("%s:%s:%d: Test skipped: (%s)", \
__func__, __FILE__, __LINE__, #e); \
goto label_test_end; \
} \
} while (0)
void test_skip(const char *format, ...) JEMALLOC_FORMAT_PRINTF(1, 2);
void test_fail(const char *format, ...) JEMALLOC_FORMAT_PRINTF(1, 2);
/* For private use by macros. */
test_status_t p_test(test_t *t, ...);
test_status_t p_test_no_malloc_init(test_t *t, ...);
void p_test_init(const char *name);
void p_test_fini(void);
void p_test_fail(const char *prefix, const char *message);
| 13,310 | 38.853293 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @file SFMT.h
*
* @brief SIMD oriented Fast Mersenne Twister(SFMT) pseudorandom
* number generator
*
* @author Mutsuo Saito (Hiroshima University)
* @author Makoto Matsumoto (Hiroshima University)
*
* Copyright (C) 2006, 2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* The new BSD License is applied to this software.
* see LICENSE.txt
*
* @note We assume that your system has inttypes.h. If your system
* doesn't have inttypes.h, you have to typedef uint32_t and uint64_t,
* and you have to define PRIu64 and PRIx64 in this file as follows:
* @verbatim
typedef unsigned int uint32_t
typedef unsigned long long uint64_t
#define PRIu64 "llu"
#define PRIx64 "llx"
@endverbatim
* uint32_t must be exactly 32-bit unsigned integer type (no more, no
* less), and uint64_t must be exactly 64-bit unsigned integer type.
* PRIu64 and PRIx64 are used for printf function to print 64-bit
* unsigned int and 64-bit unsigned int in hexadecimal format.
*/
#ifndef SFMT_H
#define SFMT_H
typedef struct sfmt_s sfmt_t;
uint32_t gen_rand32(sfmt_t *ctx);
uint32_t gen_rand32_range(sfmt_t *ctx, uint32_t limit);
uint64_t gen_rand64(sfmt_t *ctx);
uint64_t gen_rand64_range(sfmt_t *ctx, uint64_t limit);
void fill_array32(sfmt_t *ctx, uint32_t *array, int size);
void fill_array64(sfmt_t *ctx, uint64_t *array, int size);
sfmt_t *init_gen_rand(uint32_t seed);
sfmt_t *init_by_array(uint32_t *init_key, int key_length);
void fini_gen_rand(sfmt_t *ctx);
const char *get_idstring(void);
int get_min_array_size32(void);
int get_min_array_size64(void);
#ifndef JEMALLOC_ENABLE_INLINE
double to_real1(uint32_t v);
double genrand_real1(sfmt_t *ctx);
double to_real2(uint32_t v);
double genrand_real2(sfmt_t *ctx);
double to_real3(uint32_t v);
double genrand_real3(sfmt_t *ctx);
double to_res53(uint64_t v);
double to_res53_mix(uint32_t x, uint32_t y);
double genrand_res53(sfmt_t *ctx);
double genrand_res53_mix(sfmt_t *ctx);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(SFMT_C_))
/* These real versions are due to Isaku Wada */
/** generates a random number on [0,1]-real-interval */
JEMALLOC_INLINE double to_real1(uint32_t v)
{
return v * (1.0/4294967295.0);
/* divided by 2^32-1 */
}
/** generates a random number on [0,1]-real-interval */
JEMALLOC_INLINE double genrand_real1(sfmt_t *ctx)
{
return to_real1(gen_rand32(ctx));
}
/** generates a random number on [0,1)-real-interval */
JEMALLOC_INLINE double to_real2(uint32_t v)
{
return v * (1.0/4294967296.0);
/* divided by 2^32 */
}
/** generates a random number on [0,1)-real-interval */
JEMALLOC_INLINE double genrand_real2(sfmt_t *ctx)
{
return to_real2(gen_rand32(ctx));
}
/** generates a random number on (0,1)-real-interval */
JEMALLOC_INLINE double to_real3(uint32_t v)
{
return (((double)v) + 0.5)*(1.0/4294967296.0);
/* divided by 2^32 */
}
/** generates a random number on (0,1)-real-interval */
JEMALLOC_INLINE double genrand_real3(sfmt_t *ctx)
{
return to_real3(gen_rand32(ctx));
}
/** These real versions are due to Isaku Wada */
/** generates a random number on [0,1) with 53-bit resolution*/
JEMALLOC_INLINE double to_res53(uint64_t v)
{
return v * (1.0/18446744073709551616.0L);
}
/** generates a random number on [0,1) with 53-bit resolution from two
* 32 bit integers */
JEMALLOC_INLINE double to_res53_mix(uint32_t x, uint32_t y)
{
return to_res53(x | ((uint64_t)y << 32));
}
/** generates a random number on [0,1) with 53-bit resolution
*/
JEMALLOC_INLINE double genrand_res53(sfmt_t *ctx)
{
return to_res53(gen_rand64(ctx));
}
/** generates a random number on [0,1) with 53-bit resolution
using 32bit integer.
*/
JEMALLOC_INLINE double genrand_res53_mix(sfmt_t *ctx)
{
uint32_t x, y;
x = gen_rand32(ctx);
y = gen_rand32(ctx);
return to_res53_mix(x, y);
}
#endif
#endif
| 5,805 | 32.755814 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT-params44497.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SFMT_PARAMS44497_H
#define SFMT_PARAMS44497_H
#define POS1 330
#define SL1 5
#define SL2 3
#define SR1 9
#define SR2 3
#define MSK1 0xeffffffbU
#define MSK2 0xdfbebfffU
#define MSK3 0xbfbf7befU
#define MSK4 0x9ffd7bffU
#define PARITY1 0x00000001U
#define PARITY2 0x00000000U
#define PARITY3 0xa3ac4000U
#define PARITY4 0xecc1327aU
/* PARAMETERS FOR ALTIVEC */
#if defined(__APPLE__) /* For OSX */
#define ALTI_SL1 (vector unsigned int)(SL1, SL1, SL1, SL1)
#define ALTI_SR1 (vector unsigned int)(SR1, SR1, SR1, SR1)
#define ALTI_MSK (vector unsigned int)(MSK1, MSK2, MSK3, MSK4)
#define ALTI_MSK64 \
(vector unsigned int)(MSK2, MSK1, MSK4, MSK3)
#define ALTI_SL2_PERM \
(vector unsigned char)(3,21,21,21,7,0,1,2,11,4,5,6,15,8,9,10)
#define ALTI_SL2_PERM64 \
(vector unsigned char)(3,4,5,6,7,29,29,29,11,12,13,14,15,0,1,2)
#define ALTI_SR2_PERM \
(vector unsigned char)(5,6,7,0,9,10,11,4,13,14,15,8,19,19,19,12)
#define ALTI_SR2_PERM64 \
(vector unsigned char)(13,14,15,0,1,2,3,4,19,19,19,8,9,10,11,12)
#else /* For OTHER OSs(Linux?) */
#define ALTI_SL1 {SL1, SL1, SL1, SL1}
#define ALTI_SR1 {SR1, SR1, SR1, SR1}
#define ALTI_MSK {MSK1, MSK2, MSK3, MSK4}
#define ALTI_MSK64 {MSK2, MSK1, MSK4, MSK3}
#define ALTI_SL2_PERM {3,21,21,21,7,0,1,2,11,4,5,6,15,8,9,10}
#define ALTI_SL2_PERM64 {3,4,5,6,7,29,29,29,11,12,13,14,15,0,1,2}
#define ALTI_SR2_PERM {5,6,7,0,9,10,11,4,13,14,15,8,19,19,19,12}
#define ALTI_SR2_PERM64 {13,14,15,0,1,2,3,4,19,19,19,8,9,10,11,12}
#endif /* For OSX */
#define IDSTR "SFMT-44497:330-5-3-9-3:effffffb-dfbebfff-bfbf7bef-9ffd7bff"
#endif /* SFMT_PARAMS44497_H */
| 3,566 | 42.5 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT-alti.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @file SFMT-alti.h
*
* @brief SIMD oriented Fast Mersenne Twister(SFMT)
* pseudorandom number generator
*
* @author Mutsuo Saito (Hiroshima University)
* @author Makoto Matsumoto (Hiroshima University)
*
* Copyright (C) 2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* The new BSD License is applied to this software.
* see LICENSE.txt
*/
#ifndef SFMT_ALTI_H
#define SFMT_ALTI_H
/**
* This function represents the recursion formula in AltiVec and BIG ENDIAN.
* @param a a 128-bit part of the interal state array
* @param b a 128-bit part of the interal state array
* @param c a 128-bit part of the interal state array
* @param d a 128-bit part of the interal state array
* @return output
*/
JEMALLOC_ALWAYS_INLINE
vector unsigned int vec_recursion(vector unsigned int a,
vector unsigned int b,
vector unsigned int c,
vector unsigned int d) {
const vector unsigned int sl1 = ALTI_SL1;
const vector unsigned int sr1 = ALTI_SR1;
#ifdef ONLY64
const vector unsigned int mask = ALTI_MSK64;
const vector unsigned char perm_sl = ALTI_SL2_PERM64;
const vector unsigned char perm_sr = ALTI_SR2_PERM64;
#else
const vector unsigned int mask = ALTI_MSK;
const vector unsigned char perm_sl = ALTI_SL2_PERM;
const vector unsigned char perm_sr = ALTI_SR2_PERM;
#endif
vector unsigned int v, w, x, y, z;
x = vec_perm(a, (vector unsigned int)perm_sl, perm_sl);
v = a;
y = vec_sr(b, sr1);
z = vec_perm(c, (vector unsigned int)perm_sr, perm_sr);
w = vec_sl(d, sl1);
z = vec_xor(z, w);
y = vec_and(y, mask);
v = vec_xor(v, x);
z = vec_xor(z, y);
z = vec_xor(z, v);
return z;
}
/**
* This function fills the internal state array with pseudorandom
* integers.
*/
JEMALLOC_INLINE void gen_rand_all(sfmt_t *ctx) {
int i;
vector unsigned int r, r1, r2;
r1 = ctx->sfmt[N - 2].s;
r2 = ctx->sfmt[N - 1].s;
for (i = 0; i < N - POS1; i++) {
r = vec_recursion(ctx->sfmt[i].s, ctx->sfmt[i + POS1].s, r1, r2);
ctx->sfmt[i].s = r;
r1 = r2;
r2 = r;
}
for (; i < N; i++) {
r = vec_recursion(ctx->sfmt[i].s, ctx->sfmt[i + POS1 - N].s, r1, r2);
ctx->sfmt[i].s = r;
r1 = r2;
r2 = r;
}
}
/**
* This function fills the user-specified array with pseudorandom
* integers.
*
* @param array an 128-bit array to be filled by pseudorandom numbers.
* @param size number of 128-bit pesudorandom numbers to be generated.
*/
JEMALLOC_INLINE void gen_rand_array(sfmt_t *ctx, w128_t *array, int size) {
int i, j;
vector unsigned int r, r1, r2;
r1 = ctx->sfmt[N - 2].s;
r2 = ctx->sfmt[N - 1].s;
for (i = 0; i < N - POS1; i++) {
r = vec_recursion(ctx->sfmt[i].s, ctx->sfmt[i + POS1].s, r1, r2);
array[i].s = r;
r1 = r2;
r2 = r;
}
for (; i < N; i++) {
r = vec_recursion(ctx->sfmt[i].s, array[i + POS1 - N].s, r1, r2);
array[i].s = r;
r1 = r2;
r2 = r;
}
/* main loop */
for (; i < size - N; i++) {
r = vec_recursion(array[i - N].s, array[i + POS1 - N].s, r1, r2);
array[i].s = r;
r1 = r2;
r2 = r;
}
for (j = 0; j < 2 * N - size; j++) {
ctx->sfmt[j].s = array[j + size - N].s;
}
for (; i < size; i++) {
r = vec_recursion(array[i - N].s, array[i + POS1 - N].s, r1, r2);
array[i].s = r;
ctx->sfmt[j++].s = r;
r1 = r2;
r2 = r;
}
}
#ifndef ONLY64
#if defined(__APPLE__)
#define ALTI_SWAP (vector unsigned char) \
(4, 5, 6, 7, 0, 1, 2, 3, 12, 13, 14, 15, 8, 9, 10, 11)
#else
#define ALTI_SWAP {4, 5, 6, 7, 0, 1, 2, 3, 12, 13, 14, 15, 8, 9, 10, 11}
#endif
/**
* This function swaps high and low 32-bit of 64-bit integers in user
* specified array.
*
* @param array an 128-bit array to be swaped.
* @param size size of 128-bit array.
*/
JEMALLOC_INLINE void swap(w128_t *array, int size) {
int i;
const vector unsigned char perm = ALTI_SWAP;
for (i = 0; i < size; i++) {
array[i].s = vec_perm(array[i].s, (vector unsigned int)perm, perm);
}
}
#endif
#endif
| 5,921 | 30.668449 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT-params86243.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SFMT_PARAMS86243_H
#define SFMT_PARAMS86243_H
#define POS1 366
#define SL1 6
#define SL2 7
#define SR1 19
#define SR2 1
#define MSK1 0xfdbffbffU
#define MSK2 0xbff7ff3fU
#define MSK3 0xfd77efffU
#define MSK4 0xbf9ff3ffU
#define PARITY1 0x00000001U
#define PARITY2 0x00000000U
#define PARITY3 0x00000000U
#define PARITY4 0xe9528d85U
/* PARAMETERS FOR ALTIVEC */
#if defined(__APPLE__) /* For OSX */
#define ALTI_SL1 (vector unsigned int)(SL1, SL1, SL1, SL1)
#define ALTI_SR1 (vector unsigned int)(SR1, SR1, SR1, SR1)
#define ALTI_MSK (vector unsigned int)(MSK1, MSK2, MSK3, MSK4)
#define ALTI_MSK64 \
(vector unsigned int)(MSK2, MSK1, MSK4, MSK3)
#define ALTI_SL2_PERM \
(vector unsigned char)(25,25,25,25,3,25,25,25,7,0,1,2,11,4,5,6)
#define ALTI_SL2_PERM64 \
(vector unsigned char)(7,25,25,25,25,25,25,25,15,0,1,2,3,4,5,6)
#define ALTI_SR2_PERM \
(vector unsigned char)(7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14)
#define ALTI_SR2_PERM64 \
(vector unsigned char)(15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14)
#else /* For OTHER OSs(Linux?) */
#define ALTI_SL1 {SL1, SL1, SL1, SL1}
#define ALTI_SR1 {SR1, SR1, SR1, SR1}
#define ALTI_MSK {MSK1, MSK2, MSK3, MSK4}
#define ALTI_MSK64 {MSK2, MSK1, MSK4, MSK3}
#define ALTI_SL2_PERM {25,25,25,25,3,25,25,25,7,0,1,2,11,4,5,6}
#define ALTI_SL2_PERM64 {7,25,25,25,25,25,25,25,15,0,1,2,3,4,5,6}
#define ALTI_SR2_PERM {7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14}
#define ALTI_SR2_PERM64 {15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14}
#endif /* For OSX */
#define IDSTR "SFMT-86243:366-6-7-19-1:fdbffbff-bff7ff3f-fd77efff-bf9ff3ff"
#endif /* SFMT_PARAMS86243_H */
| 3,564 | 42.47561 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/thd.h
|
/* Abstraction layer for threading in tests. */
#ifdef _WIN32
typedef HANDLE thd_t;
#else
typedef pthread_t thd_t;
#endif
void thd_create(thd_t *thd, void *(*proc)(void *), void *arg);
void thd_join(thd_t thd, void **ret);
| 224 | 21.5 | 62 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/test/include/test/SFMT-params132049.h
|
/*
* This file derives from SFMT 1.3.3
* (http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html), which was
* released under the terms of the following license:
*
* Copyright (c) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
* University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Hiroshima University nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SFMT_PARAMS132049_H
#define SFMT_PARAMS132049_H
#define POS1 110
#define SL1 19
#define SL2 1
#define SR1 21
#define SR2 1
#define MSK1 0xffffbb5fU
#define MSK2 0xfb6ebf95U
#define MSK3 0xfffefffaU
#define MSK4 0xcff77fffU
#define PARITY1 0x00000001U
#define PARITY2 0x00000000U
#define PARITY3 0xcb520000U
#define PARITY4 0xc7e91c7dU
/* PARAMETERS FOR ALTIVEC */
#if defined(__APPLE__) /* For OSX */
#define ALTI_SL1 (vector unsigned int)(SL1, SL1, SL1, SL1)
#define ALTI_SR1 (vector unsigned int)(SR1, SR1, SR1, SR1)
#define ALTI_MSK (vector unsigned int)(MSK1, MSK2, MSK3, MSK4)
#define ALTI_MSK64 \
(vector unsigned int)(MSK2, MSK1, MSK4, MSK3)
#define ALTI_SL2_PERM \
(vector unsigned char)(1,2,3,23,5,6,7,0,9,10,11,4,13,14,15,8)
#define ALTI_SL2_PERM64 \
(vector unsigned char)(1,2,3,4,5,6,7,31,9,10,11,12,13,14,15,0)
#define ALTI_SR2_PERM \
(vector unsigned char)(7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14)
#define ALTI_SR2_PERM64 \
(vector unsigned char)(15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14)
#else /* For OTHER OSs(Linux?) */
#define ALTI_SL1 {SL1, SL1, SL1, SL1}
#define ALTI_SR1 {SR1, SR1, SR1, SR1}
#define ALTI_MSK {MSK1, MSK2, MSK3, MSK4}
#define ALTI_MSK64 {MSK2, MSK1, MSK4, MSK3}
#define ALTI_SL2_PERM {1,2,3,23,5,6,7,0,9,10,11,4,13,14,15,8}
#define ALTI_SL2_PERM64 {1,2,3,4,5,6,7,31,9,10,11,12,13,14,15,0}
#define ALTI_SR2_PERM {7,0,1,2,11,4,5,6,15,8,9,10,17,12,13,14}
#define ALTI_SR2_PERM64 {15,0,1,2,3,4,5,6,17,8,9,10,11,12,13,14}
#endif /* For OSX */
#define IDSTR "SFMT-132049:110-19-1-21-1:ffffbb5f-fb6ebf95-fffefffa-cff77fff"
#endif /* SFMT_PARAMS132049_H */
| 3,564 | 42.47561 | 79 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/msvc/projects/vc2015/test_threads/test_threads_main.cpp
|
#include "test_threads.h"
#include <future>
#include <functional>
#include <chrono>
using namespace std::chrono_literals;
int main(int argc, char** argv)
{
int rc = test_threads();
return rc;
}
| 200 | 14.461538 | 37 |
cpp
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/msvc/projects/vc2015/test_threads/test_threads.cpp
|
// jemalloc C++ threaded test
// Author: Rustam Abdullaev
// Public Domain
#include <atomic>
#include <functional>
#include <future>
#include <random>
#include <thread>
#include <vector>
#include <stdio.h>
#include <jemalloc/jemalloc.h>
using std::vector;
using std::thread;
using std::uniform_int_distribution;
using std::minstd_rand;
int test_threads()
{
je_malloc_conf = "narenas:3";
int narenas = 0;
size_t sz = sizeof(narenas);
je_mallctl("opt.narenas", (void *)&narenas, &sz, NULL, 0);
if (narenas != 3) {
printf("Error: unexpected number of arenas: %d\n", narenas);
return 1;
}
static const int sizes[] = { 7, 16, 32, 60, 91, 100, 120, 144, 169, 199, 255, 400, 670, 900, 917, 1025, 3333, 5190, 13131, 49192, 99999, 123123, 255265, 2333111 };
static const int numSizes = (int)(sizeof(sizes) / sizeof(sizes[0]));
vector<thread> workers;
static const int numThreads = narenas + 1, numAllocsMax = 25, numIter1 = 50, numIter2 = 50;
je_malloc_stats_print(NULL, NULL, NULL);
size_t allocated1;
size_t sz1 = sizeof(allocated1);
je_mallctl("stats.active", (void *)&allocated1, &sz1, NULL, 0);
printf("\nPress Enter to start threads...\n");
getchar();
printf("Starting %d threads x %d x %d iterations...\n", numThreads, numIter1, numIter2);
for (int i = 0; i < numThreads; i++) {
workers.emplace_back([tid=i]() {
uniform_int_distribution<int> sizeDist(0, numSizes - 1);
minstd_rand rnd(tid * 17);
uint8_t* ptrs[numAllocsMax];
int ptrsz[numAllocsMax];
for (int i = 0; i < numIter1; ++i) {
thread t([&]() {
for (int i = 0; i < numIter2; ++i) {
const int numAllocs = numAllocsMax - sizeDist(rnd);
for (int j = 0; j < numAllocs; j += 64) {
const int x = sizeDist(rnd);
const int sz = sizes[x];
ptrsz[j] = sz;
ptrs[j] = (uint8_t*)je_malloc(sz);
if (!ptrs[j]) {
printf("Unable to allocate %d bytes in thread %d, iter %d, alloc %d. %d\n", sz, tid, i, j, x);
exit(1);
}
for (int k = 0; k < sz; k++)
ptrs[j][k] = tid + k;
}
for (int j = 0; j < numAllocs; j += 64) {
for (int k = 0, sz = ptrsz[j]; k < sz; k++)
if (ptrs[j][k] != (uint8_t)(tid + k)) {
printf("Memory error in thread %d, iter %d, alloc %d @ %d : %02X!=%02X\n", tid, i, j, k, ptrs[j][k], (uint8_t)(tid + k));
exit(1);
}
je_free(ptrs[j]);
}
}
});
t.join();
}
});
}
for (thread& t : workers) {
t.join();
}
je_malloc_stats_print(NULL, NULL, NULL);
size_t allocated2;
je_mallctl("stats.active", (void *)&allocated2, &sz1, NULL, 0);
size_t leaked = allocated2 - allocated1;
printf("\nDone. Leaked: %zd bytes\n", leaked);
bool failed = leaked > 65536; // in case C++ runtime allocated something (e.g. iostream locale or facet)
printf("\nTest %s!\n", (failed ? "FAILED" : "successful"));
printf("\nPress Enter to continue...\n");
getchar();
return failed ? 1 : 0;
}
| 3,177 | 34.311111 | 165 |
cpp
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/msvc/projects/vc2015/test_threads/test_threads.h
|
#pragma once
int test_threads();
| 34 | 7.75 | 19 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/msvc_compat/windows_extra.h
|
#ifndef MSVC_COMPAT_WINDOWS_EXTRA_H
#define MSVC_COMPAT_WINDOWS_EXTRA_H
#include <errno.h>
#endif /* MSVC_COMPAT_WINDOWS_EXTRA_H */
| 134 | 18.285714 | 40 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/msvc_compat/strings.h
|
#ifndef strings_h
#define strings_h
/* MSVC doesn't define ffs/ffsl. This dummy strings.h header is provided
* for both */
#ifdef _MSC_VER
# include <intrin.h>
# pragma intrinsic(_BitScanForward)
static __forceinline int ffsl(long x)
{
unsigned long i;
if (_BitScanForward(&i, x))
return (i + 1);
return (0);
}
static __forceinline int ffs(int x)
{
return (ffsl(x));
}
# ifdef _M_X64
# pragma intrinsic(_BitScanForward64)
# endif
static __forceinline int ffsll(unsigned __int64 x)
{
unsigned long i;
#ifdef _M_X64
if (_BitScanForward64(&i, x))
return (i + 1);
return (0);
#else
// Fallback for 32-bit build where 64-bit version not available
// assuming little endian
union {
unsigned __int64 ll;
unsigned long l[2];
} s;
s.ll = x;
if (_BitScanForward(&i, s.l[0]))
return (i + 1);
else if(_BitScanForward(&i, s.l[1]))
return (i + 33);
return (0);
#endif
}
#else
# define ffsll(x) __builtin_ffsll(x)
# define ffsl(x) __builtin_ffsl(x)
# define ffs(x) __builtin_ffs(x)
#endif
#endif /* strings_h */
| 1,047 | 16.466667 | 72 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/msvc_compat/C99/stdbool.h
|
#ifndef stdbool_h
#define stdbool_h
#include <wtypes.h>
/* MSVC doesn't define _Bool or bool in C, but does have BOOL */
/* Note this doesn't pass autoconf's test because (bool) 0.5 != true */
/* Clang-cl uses MSVC headers, so needs msvc_compat, but has _Bool as
* a built-in type. */
#ifndef __clang__
typedef BOOL _Bool;
#endif
#define bool _Bool
#define true 1
#define false 0
#define __bool_true_false_are_defined 1
#endif /* stdbool_h */
| 449 | 20.428571 | 71 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/msvc_compat/C99/stdint.h
|
// ISO C9x compliant stdint.h for Microsoft Visual Studio
// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124
//
// Copyright (c) 2006-2008 Alexander Chemeris
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. The name of the author may be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef _MSC_VER // [
#error "Use this header only with Microsoft Visual C++ compilers!"
#endif // _MSC_VER ]
#ifndef _MSC_STDINT_H_ // [
#define _MSC_STDINT_H_
#if _MSC_VER > 1000
#pragma once
#endif
#include <limits.h>
// For Visual Studio 6 in C++ mode and for many Visual Studio versions when
// compiling for ARM we should wrap <wchar.h> include with 'extern "C++" {}'
// or compiler give many errors like this:
// error C2733: second C linkage of overloaded function 'wmemchr' not allowed
#ifdef __cplusplus
extern "C" {
#endif
# include <wchar.h>
#ifdef __cplusplus
}
#endif
// Define _W64 macros to mark types changing their size, like intptr_t.
#ifndef _W64
# if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300
# define _W64 __w64
# else
# define _W64
# endif
#endif
// 7.18.1 Integer types
// 7.18.1.1 Exact-width integer types
// Visual Studio 6 and Embedded Visual C++ 4 doesn't
// realize that, e.g. char has the same size as __int8
// so we give up on __intX for them.
#if (_MSC_VER < 1300)
typedef signed char int8_t;
typedef signed short int16_t;
typedef signed int int32_t;
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
#else
typedef signed __int8 int8_t;
typedef signed __int16 int16_t;
typedef signed __int32 int32_t;
typedef unsigned __int8 uint8_t;
typedef unsigned __int16 uint16_t;
typedef unsigned __int32 uint32_t;
#endif
typedef signed __int64 int64_t;
typedef unsigned __int64 uint64_t;
// 7.18.1.2 Minimum-width integer types
typedef int8_t int_least8_t;
typedef int16_t int_least16_t;
typedef int32_t int_least32_t;
typedef int64_t int_least64_t;
typedef uint8_t uint_least8_t;
typedef uint16_t uint_least16_t;
typedef uint32_t uint_least32_t;
typedef uint64_t uint_least64_t;
// 7.18.1.3 Fastest minimum-width integer types
typedef int8_t int_fast8_t;
typedef int16_t int_fast16_t;
typedef int32_t int_fast32_t;
typedef int64_t int_fast64_t;
typedef uint8_t uint_fast8_t;
typedef uint16_t uint_fast16_t;
typedef uint32_t uint_fast32_t;
typedef uint64_t uint_fast64_t;
// 7.18.1.4 Integer types capable of holding object pointers
#ifdef _WIN64 // [
typedef signed __int64 intptr_t;
typedef unsigned __int64 uintptr_t;
#else // _WIN64 ][
typedef _W64 signed int intptr_t;
typedef _W64 unsigned int uintptr_t;
#endif // _WIN64 ]
// 7.18.1.5 Greatest-width integer types
typedef int64_t intmax_t;
typedef uint64_t uintmax_t;
// 7.18.2 Limits of specified-width integer types
#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) // [ See footnote 220 at page 257 and footnote 221 at page 259
// 7.18.2.1 Limits of exact-width integer types
#define INT8_MIN ((int8_t)_I8_MIN)
#define INT8_MAX _I8_MAX
#define INT16_MIN ((int16_t)_I16_MIN)
#define INT16_MAX _I16_MAX
#define INT32_MIN ((int32_t)_I32_MIN)
#define INT32_MAX _I32_MAX
#define INT64_MIN ((int64_t)_I64_MIN)
#define INT64_MAX _I64_MAX
#define UINT8_MAX _UI8_MAX
#define UINT16_MAX _UI16_MAX
#define UINT32_MAX _UI32_MAX
#define UINT64_MAX _UI64_MAX
// 7.18.2.2 Limits of minimum-width integer types
#define INT_LEAST8_MIN INT8_MIN
#define INT_LEAST8_MAX INT8_MAX
#define INT_LEAST16_MIN INT16_MIN
#define INT_LEAST16_MAX INT16_MAX
#define INT_LEAST32_MIN INT32_MIN
#define INT_LEAST32_MAX INT32_MAX
#define INT_LEAST64_MIN INT64_MIN
#define INT_LEAST64_MAX INT64_MAX
#define UINT_LEAST8_MAX UINT8_MAX
#define UINT_LEAST16_MAX UINT16_MAX
#define UINT_LEAST32_MAX UINT32_MAX
#define UINT_LEAST64_MAX UINT64_MAX
// 7.18.2.3 Limits of fastest minimum-width integer types
#define INT_FAST8_MIN INT8_MIN
#define INT_FAST8_MAX INT8_MAX
#define INT_FAST16_MIN INT16_MIN
#define INT_FAST16_MAX INT16_MAX
#define INT_FAST32_MIN INT32_MIN
#define INT_FAST32_MAX INT32_MAX
#define INT_FAST64_MIN INT64_MIN
#define INT_FAST64_MAX INT64_MAX
#define UINT_FAST8_MAX UINT8_MAX
#define UINT_FAST16_MAX UINT16_MAX
#define UINT_FAST32_MAX UINT32_MAX
#define UINT_FAST64_MAX UINT64_MAX
// 7.18.2.4 Limits of integer types capable of holding object pointers
#ifdef _WIN64 // [
# define INTPTR_MIN INT64_MIN
# define INTPTR_MAX INT64_MAX
# define UINTPTR_MAX UINT64_MAX
#else // _WIN64 ][
# define INTPTR_MIN INT32_MIN
# define INTPTR_MAX INT32_MAX
# define UINTPTR_MAX UINT32_MAX
#endif // _WIN64 ]
// 7.18.2.5 Limits of greatest-width integer types
#define INTMAX_MIN INT64_MIN
#define INTMAX_MAX INT64_MAX
#define UINTMAX_MAX UINT64_MAX
// 7.18.3 Limits of other integer types
#ifdef _WIN64 // [
# define PTRDIFF_MIN _I64_MIN
# define PTRDIFF_MAX _I64_MAX
#else // _WIN64 ][
# define PTRDIFF_MIN _I32_MIN
# define PTRDIFF_MAX _I32_MAX
#endif // _WIN64 ]
#define SIG_ATOMIC_MIN INT_MIN
#define SIG_ATOMIC_MAX INT_MAX
#ifndef SIZE_MAX // [
# ifdef _WIN64 // [
# define SIZE_MAX _UI64_MAX
# else // _WIN64 ][
# define SIZE_MAX _UI32_MAX
# endif // _WIN64 ]
#endif // SIZE_MAX ]
// WCHAR_MIN and WCHAR_MAX are also defined in <wchar.h>
#ifndef WCHAR_MIN // [
# define WCHAR_MIN 0
#endif // WCHAR_MIN ]
#ifndef WCHAR_MAX // [
# define WCHAR_MAX _UI16_MAX
#endif // WCHAR_MAX ]
#define WINT_MIN 0
#define WINT_MAX _UI16_MAX
#endif // __STDC_LIMIT_MACROS ]
// 7.18.4 Limits of other integer types
#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) // [ See footnote 224 at page 260
// 7.18.4.1 Macros for minimum-width integer constants
#define INT8_C(val) val##i8
#define INT16_C(val) val##i16
#define INT32_C(val) val##i32
#define INT64_C(val) val##i64
#define UINT8_C(val) val##ui8
#define UINT16_C(val) val##ui16
#define UINT32_C(val) val##ui32
#define UINT64_C(val) val##ui64
// 7.18.4.2 Macros for greatest-width integer constants
#define INTMAX_C INT64_C
#define UINTMAX_C UINT64_C
#endif // __STDC_CONSTANT_MACROS ]
#endif // _MSC_STDINT_H_ ]
| 7,728 | 30.165323 | 122 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/jemalloc_rename.sh
|
#!/bin/sh
public_symbols_txt=$1
cat <<EOF
/*
* Name mangling for public symbols is controlled by --with-mangling and
* --with-jemalloc-prefix. With default settings the je_ prefix is stripped by
* these macro definitions.
*/
#ifndef JEMALLOC_NO_RENAME
EOF
for nm in `cat ${public_symbols_txt}` ; do
n=`echo ${nm} |tr ':' ' ' |awk '{print $1}'`
m=`echo ${nm} |tr ':' ' ' |awk '{print $2}'`
echo "# define je_${n} ${m}"
done
cat <<EOF
#endif
EOF
| 460 | 19.043478 | 79 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/jemalloc.sh
|
#!/bin/sh
objroot=$1
cat <<EOF
#ifndef JEMALLOC_H_
#define JEMALLOC_H_
#ifdef __cplusplus
extern "C" {
#endif
EOF
for hdr in jemalloc_defs.h jemalloc_rename.h jemalloc_macros.h \
jemalloc_protos.h jemalloc_typedefs.h jemalloc_mangle.h ; do
cat "${objroot}include/jemalloc/${hdr}" \
| grep -v 'Generated from .* by configure\.' \
| sed -e 's/^#define /#define /g' \
| sed -e 's/ $//g'
echo
done
cat <<EOF
#ifdef __cplusplus
}
#endif
#endif /* JEMALLOC_H_ */
EOF
| 499 | 16.241379 | 71 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/jemalloc_mangle.sh
|
#!/bin/sh
public_symbols_txt=$1
symbol_prefix=$2
cat <<EOF
/*
* By default application code must explicitly refer to mangled symbol names,
* so that it is possible to use jemalloc in conjunction with another allocator
* in the same application. Define JEMALLOC_MANGLE in order to cause automatic
* name mangling that matches the API prefixing that happened as a result of
* --with-mangling and/or --with-jemalloc-prefix configuration settings.
*/
#ifdef JEMALLOC_MANGLE
# ifndef JEMALLOC_NO_DEMANGLE
# define JEMALLOC_NO_DEMANGLE
# endif
EOF
for nm in `cat ${public_symbols_txt}` ; do
n=`echo ${nm} |tr ':' ' ' |awk '{print $1}'`
echo "# define ${n} ${symbol_prefix}${n}"
done
cat <<EOF
#endif
/*
* The ${symbol_prefix}* macros can be used as stable alternative names for the
* public jemalloc API if JEMALLOC_NO_DEMANGLE is defined. This is primarily
* meant for use in jemalloc itself, but it can be used by application code to
* provide isolation from the name mangling specified via --with-mangling
* and/or --with-jemalloc-prefix.
*/
#ifndef JEMALLOC_NO_DEMANGLE
EOF
for nm in `cat ${public_symbols_txt}` ; do
n=`echo ${nm} |tr ':' ' ' |awk '{print $1}'`
echo "# undef ${symbol_prefix}${n}"
done
cat <<EOF
#endif
EOF
| 1,258 | 26.369565 | 79 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/public_unnamespace.sh
|
#!/bin/sh
for nm in `cat $1` ; do
n=`echo ${nm} |tr ':' ' ' |awk '{print $1}'`
echo "#undef je_${n}"
done
| 111 | 15 | 46 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/mutex.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
typedef struct malloc_mutex_s malloc_mutex_t;
#ifdef _WIN32
# define MALLOC_MUTEX_INITIALIZER
#elif (defined(JEMALLOC_OS_UNFAIR_LOCK))
# define MALLOC_MUTEX_INITIALIZER \
{OS_UNFAIR_LOCK_INIT, WITNESS_INITIALIZER(WITNESS_RANK_OMIT)}
#elif (defined(JEMALLOC_OSSPIN))
# define MALLOC_MUTEX_INITIALIZER {0, WITNESS_INITIALIZER(WITNESS_RANK_OMIT)}
#elif (defined(JEMALLOC_MUTEX_INIT_CB))
# define MALLOC_MUTEX_INITIALIZER \
{PTHREAD_MUTEX_INITIALIZER, NULL, WITNESS_INITIALIZER(WITNESS_RANK_OMIT)}
#else
# if (defined(JEMALLOC_HAVE_PTHREAD_MUTEX_ADAPTIVE_NP) && \
defined(PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP))
# define MALLOC_MUTEX_TYPE PTHREAD_MUTEX_ADAPTIVE_NP
# define MALLOC_MUTEX_INITIALIZER \
{PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP, \
WITNESS_INITIALIZER(WITNESS_RANK_OMIT)}
# else
# define MALLOC_MUTEX_TYPE PTHREAD_MUTEX_DEFAULT
# define MALLOC_MUTEX_INITIALIZER \
{PTHREAD_MUTEX_INITIALIZER, WITNESS_INITIALIZER(WITNESS_RANK_OMIT)}
# endif
#endif
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
struct malloc_mutex_s {
#ifdef _WIN32
# if _WIN32_WINNT >= 0x0600
SRWLOCK lock;
# else
CRITICAL_SECTION lock;
# endif
#elif (defined(JEMALLOC_OS_UNFAIR_LOCK))
os_unfair_lock lock;
#elif (defined(JEMALLOC_OSSPIN))
OSSpinLock lock;
#elif (defined(JEMALLOC_MUTEX_INIT_CB))
pthread_mutex_t lock;
malloc_mutex_t *postponed_next;
#else
pthread_mutex_t lock;
#endif
witness_t witness;
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
#ifdef JEMALLOC_LAZY_LOCK
extern bool isthreaded;
#else
# undef isthreaded /* Undo private_namespace.h definition. */
# define isthreaded true
#endif
bool malloc_mutex_init(malloc_mutex_t *mutex, const char *name,
witness_rank_t rank);
void malloc_mutex_prefork(tsdn_t *tsdn, malloc_mutex_t *mutex);
void malloc_mutex_postfork_parent(tsdn_t *tsdn, malloc_mutex_t *mutex);
void malloc_mutex_postfork_child(tsdn_t *tsdn, malloc_mutex_t *mutex);
bool malloc_mutex_boot(void);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
void malloc_mutex_lock(tsdn_t *tsdn, malloc_mutex_t *mutex);
void malloc_mutex_unlock(tsdn_t *tsdn, malloc_mutex_t *mutex);
void malloc_mutex_assert_owner(tsdn_t *tsdn, malloc_mutex_t *mutex);
void malloc_mutex_assert_not_owner(tsdn_t *tsdn, malloc_mutex_t *mutex);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_MUTEX_C_))
JEMALLOC_INLINE void
malloc_mutex_lock(tsdn_t *tsdn, malloc_mutex_t *mutex)
{
if (isthreaded) {
witness_assert_not_owner(tsdn, &mutex->witness);
#ifdef _WIN32
# if _WIN32_WINNT >= 0x0600
AcquireSRWLockExclusive(&mutex->lock);
# else
EnterCriticalSection(&mutex->lock);
# endif
#elif (defined(JEMALLOC_OS_UNFAIR_LOCK))
os_unfair_lock_lock(&mutex->lock);
#elif (defined(JEMALLOC_OSSPIN))
OSSpinLockLock(&mutex->lock);
#else
pthread_mutex_lock(&mutex->lock);
#endif
witness_lock(tsdn, &mutex->witness);
}
}
JEMALLOC_INLINE void
malloc_mutex_unlock(tsdn_t *tsdn, malloc_mutex_t *mutex)
{
if (isthreaded) {
witness_unlock(tsdn, &mutex->witness);
#ifdef _WIN32
# if _WIN32_WINNT >= 0x0600
ReleaseSRWLockExclusive(&mutex->lock);
# else
LeaveCriticalSection(&mutex->lock);
# endif
#elif (defined(JEMALLOC_OS_UNFAIR_LOCK))
os_unfair_lock_unlock(&mutex->lock);
#elif (defined(JEMALLOC_OSSPIN))
OSSpinLockUnlock(&mutex->lock);
#else
pthread_mutex_unlock(&mutex->lock);
#endif
}
}
JEMALLOC_INLINE void
malloc_mutex_assert_owner(tsdn_t *tsdn, malloc_mutex_t *mutex)
{
if (isthreaded)
witness_assert_owner(tsdn, &mutex->witness);
}
JEMALLOC_INLINE void
malloc_mutex_assert_not_owner(tsdn_t *tsdn, malloc_mutex_t *mutex)
{
if (isthreaded)
witness_assert_not_owner(tsdn, &mutex->witness);
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 4,264 | 27.817568 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/ctl.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
typedef struct ctl_node_s ctl_node_t;
typedef struct ctl_named_node_s ctl_named_node_t;
typedef struct ctl_indexed_node_s ctl_indexed_node_t;
typedef struct ctl_arena_stats_s ctl_arena_stats_t;
typedef struct ctl_stats_s ctl_stats_t;
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
struct ctl_node_s {
bool named;
};
struct ctl_named_node_s {
struct ctl_node_s node;
const char *name;
/* If (nchildren == 0), this is a terminal node. */
unsigned nchildren;
const ctl_node_t *children;
int (*ctl)(tsd_t *, const size_t *, size_t, void *,
size_t *, void *, size_t);
};
struct ctl_indexed_node_s {
struct ctl_node_s node;
const ctl_named_node_t *(*index)(tsdn_t *, const size_t *, size_t,
size_t);
};
struct ctl_arena_stats_s {
bool initialized;
unsigned nthreads;
const char *dss;
ssize_t lg_dirty_mult;
ssize_t decay_time;
size_t pactive;
size_t pdirty;
/* The remainder are only populated if config_stats is true. */
arena_stats_t astats;
/* Aggregate stats for small size classes, based on bin stats. */
size_t allocated_small;
uint64_t nmalloc_small;
uint64_t ndalloc_small;
uint64_t nrequests_small;
malloc_bin_stats_t bstats[NBINS];
malloc_large_stats_t *lstats; /* nlclasses elements. */
malloc_huge_stats_t *hstats; /* nhclasses elements. */
};
struct ctl_stats_s {
size_t allocated;
size_t active;
size_t metadata;
size_t resident;
size_t mapped;
size_t retained;
unsigned narenas;
ctl_arena_stats_t *arenas; /* (narenas + 1) elements. */
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
int ctl_byname(tsd_t *tsd, const char *name, void *oldp, size_t *oldlenp,
void *newp, size_t newlen);
int ctl_nametomib(tsdn_t *tsdn, const char *name, size_t *mibp,
size_t *miblenp);
int ctl_bymib(tsd_t *tsd, const size_t *mib, size_t miblen, void *oldp,
size_t *oldlenp, void *newp, size_t newlen);
bool ctl_boot(void);
void ctl_prefork(tsdn_t *tsdn);
void ctl_postfork_parent(tsdn_t *tsdn);
void ctl_postfork_child(tsdn_t *tsdn);
#define xmallctl(name, oldp, oldlenp, newp, newlen) do { \
if (je_mallctl(name, oldp, oldlenp, newp, newlen) \
!= 0) { \
malloc_printf( \
"<jemalloc>: Failure in xmallctl(\"%s\", ...)\n", \
name); \
abort(); \
} \
} while (0)
#define xmallctlnametomib(name, mibp, miblenp) do { \
if (je_mallctlnametomib(name, mibp, miblenp) != 0) { \
malloc_printf("<jemalloc>: Failure in " \
"xmallctlnametomib(\"%s\", ...)\n", name); \
abort(); \
} \
} while (0)
#define xmallctlbymib(mib, miblen, oldp, oldlenp, newp, newlen) do { \
if (je_mallctlbymib(mib, miblen, oldp, oldlenp, newp, \
newlen) != 0) { \
malloc_write( \
"<jemalloc>: Failure in xmallctlbymib()\n"); \
abort(); \
} \
} while (0)
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 3,389 | 27.487395 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/arena.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
#define LARGE_MINCLASS (ZU(1) << LG_LARGE_MINCLASS)
/* Maximum number of regions in one run. */
#define LG_RUN_MAXREGS (LG_PAGE - LG_TINY_MIN)
#define RUN_MAXREGS (1U << LG_RUN_MAXREGS)
/*
* Minimum redzone size. Redzones may be larger than this if necessary to
* preserve region alignment.
*/
#define REDZONE_MINSIZE 16
/*
* The minimum ratio of active:dirty pages per arena is computed as:
*
* (nactive >> lg_dirty_mult) >= ndirty
*
* So, supposing that lg_dirty_mult is 3, there can be no less than 8 times as
* many active pages as dirty pages.
*/
#define LG_DIRTY_MULT_DEFAULT 3
typedef enum {
purge_mode_ratio = 0,
purge_mode_decay = 1,
purge_mode_limit = 2
} purge_mode_t;
#define PURGE_DEFAULT purge_mode_ratio
/* Default decay time in seconds. */
#define DECAY_TIME_DEFAULT 10
/* Number of event ticks between time checks. */
#define DECAY_NTICKS_PER_UPDATE 1000
typedef struct arena_runs_dirty_link_s arena_runs_dirty_link_t;
typedef struct arena_avail_links_s arena_avail_links_t;
typedef struct arena_run_s arena_run_t;
typedef struct arena_chunk_map_bits_s arena_chunk_map_bits_t;
typedef struct arena_chunk_map_misc_s arena_chunk_map_misc_t;
typedef struct arena_chunk_s arena_chunk_t;
typedef struct arena_bin_info_s arena_bin_info_t;
typedef struct arena_decay_s arena_decay_t;
typedef struct arena_bin_s arena_bin_t;
typedef struct arena_s arena_t;
typedef struct arena_tdata_s arena_tdata_t;
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#ifdef JEMALLOC_ARENA_STRUCTS_A
struct arena_run_s {
/* Index of bin this run is associated with. */
szind_t binind;
/* Number of free regions in run. */
unsigned nfree;
/* Per region allocated/deallocated bitmap. */
bitmap_t bitmap[BITMAP_GROUPS_MAX];
};
/* Each element of the chunk map corresponds to one page within the chunk. */
struct arena_chunk_map_bits_s {
/*
* Run address (or size) and various flags are stored together. The bit
* layout looks like (assuming 32-bit system):
*
* ???????? ???????? ???nnnnn nnndumla
*
* ? : Unallocated: Run address for first/last pages, unset for internal
* pages.
* Small: Run page offset.
* Large: Run page count for first page, unset for trailing pages.
* n : binind for small size class, BININD_INVALID for large size class.
* d : dirty?
* u : unzeroed?
* m : decommitted?
* l : large?
* a : allocated?
*
* Following are example bit patterns for the three types of runs.
*
* p : run page offset
* s : run size
* n : binind for size class; large objects set these to BININD_INVALID
* x : don't care
* - : 0
* + : 1
* [DUMLA] : bit set
* [dumla] : bit unset
*
* Unallocated (clean):
* ssssssss ssssssss sss+++++ +++dum-a
* xxxxxxxx xxxxxxxx xxxxxxxx xxx-Uxxx
* ssssssss ssssssss sss+++++ +++dUm-a
*
* Unallocated (dirty):
* ssssssss ssssssss sss+++++ +++D-m-a
* xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
* ssssssss ssssssss sss+++++ +++D-m-a
*
* Small:
* pppppppp pppppppp pppnnnnn nnnd---A
* pppppppp pppppppp pppnnnnn nnn----A
* pppppppp pppppppp pppnnnnn nnnd---A
*
* Large:
* ssssssss ssssssss sss+++++ +++D--LA
* xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
* -------- -------- ---+++++ +++D--LA
*
* Large (sampled, size <= LARGE_MINCLASS):
* ssssssss ssssssss sssnnnnn nnnD--LA
* xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
* -------- -------- ---+++++ +++D--LA
*
* Large (not sampled, size == LARGE_MINCLASS):
* ssssssss ssssssss sss+++++ +++D--LA
* xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
* -------- -------- ---+++++ +++D--LA
*/
size_t bits;
#define CHUNK_MAP_ALLOCATED ((size_t)0x01U)
#define CHUNK_MAP_LARGE ((size_t)0x02U)
#define CHUNK_MAP_STATE_MASK ((size_t)0x3U)
#define CHUNK_MAP_DECOMMITTED ((size_t)0x04U)
#define CHUNK_MAP_UNZEROED ((size_t)0x08U)
#define CHUNK_MAP_DIRTY ((size_t)0x10U)
#define CHUNK_MAP_FLAGS_MASK ((size_t)0x1cU)
#define CHUNK_MAP_BININD_SHIFT 5
#define BININD_INVALID ((size_t)0xffU)
#define CHUNK_MAP_BININD_MASK (BININD_INVALID << CHUNK_MAP_BININD_SHIFT)
#define CHUNK_MAP_BININD_INVALID CHUNK_MAP_BININD_MASK
#define CHUNK_MAP_RUNIND_SHIFT (CHUNK_MAP_BININD_SHIFT + 8)
#define CHUNK_MAP_SIZE_SHIFT (CHUNK_MAP_RUNIND_SHIFT - LG_PAGE)
#define CHUNK_MAP_SIZE_MASK \
(~(CHUNK_MAP_BININD_MASK | CHUNK_MAP_FLAGS_MASK | CHUNK_MAP_STATE_MASK))
};
struct arena_runs_dirty_link_s {
qr(arena_runs_dirty_link_t) rd_link;
};
/*
* Each arena_chunk_map_misc_t corresponds to one page within the chunk, just
* like arena_chunk_map_bits_t. Two separate arrays are stored within each
* chunk header in order to improve cache locality.
*/
struct arena_chunk_map_misc_s {
/*
* Linkage for run heaps. There are two disjoint uses:
*
* 1) arena_t's runs_avail heaps.
* 2) arena_run_t conceptually uses this linkage for in-use non-full
* runs, rather than directly embedding linkage.
*/
phn(arena_chunk_map_misc_t) ph_link;
union {
/* Linkage for list of dirty runs. */
arena_runs_dirty_link_t rd;
/* Profile counters, used for large object runs. */
union {
void *prof_tctx_pun;
prof_tctx_t *prof_tctx;
};
/* Small region run metadata. */
arena_run_t run;
};
};
typedef ph(arena_chunk_map_misc_t) arena_run_heap_t;
#endif /* JEMALLOC_ARENA_STRUCTS_A */
#ifdef JEMALLOC_ARENA_STRUCTS_B
/* Arena chunk header. */
struct arena_chunk_s {
/*
* A pointer to the arena that owns the chunk is stored within the node.
* This field as a whole is used by chunks_rtree to support both
* ivsalloc() and core-based debugging.
*/
extent_node_t node;
/*
* True if memory could be backed by transparent huge pages. This is
* only directly relevant to Linux, since it is the only supported
* platform on which jemalloc interacts with explicit transparent huge
* page controls.
*/
bool hugepage;
/*
* Map of pages within chunk that keeps track of free/large/small. The
* first map_bias entries are omitted, since the chunk header does not
* need to be tracked in the map. This omission saves a header page
* for common chunk sizes (e.g. 4 MiB).
*/
arena_chunk_map_bits_t map_bits[1]; /* Dynamically sized. */
};
/*
* Read-only information associated with each element of arena_t's bins array
* is stored separately, partly to reduce memory usage (only one copy, rather
* than one per arena), but mainly to avoid false cacheline sharing.
*
* Each run has the following layout:
*
* /--------------------\
* | pad? |
* |--------------------|
* | redzone |
* reg0_offset | region 0 |
* | redzone |
* |--------------------| \
* | redzone | |
* | region 1 | > reg_interval
* | redzone | /
* |--------------------|
* | ... |
* | ... |
* | ... |
* |--------------------|
* | redzone |
* | region nregs-1 |
* | redzone |
* |--------------------|
* | alignment pad? |
* \--------------------/
*
* reg_interval has at least the same minimum alignment as reg_size; this
* preserves the alignment constraint that sa2u() depends on. Alignment pad is
* either 0 or redzone_size; it is present only if needed to align reg0_offset.
*/
struct arena_bin_info_s {
/* Size of regions in a run for this bin's size class. */
size_t reg_size;
/* Redzone size. */
size_t redzone_size;
/* Interval between regions (reg_size + (redzone_size << 1)). */
size_t reg_interval;
/* Total size of a run for this bin's size class. */
size_t run_size;
/* Total number of regions in a run for this bin's size class. */
uint32_t nregs;
/*
* Metadata used to manipulate bitmaps for runs associated with this
* bin.
*/
bitmap_info_t bitmap_info;
/* Offset of first region in a run for this bin's size class. */
uint32_t reg0_offset;
};
struct arena_decay_s {
/*
* Approximate time in seconds from the creation of a set of unused
* dirty pages until an equivalent set of unused dirty pages is purged
* and/or reused.
*/
ssize_t time;
/* time / SMOOTHSTEP_NSTEPS. */
nstime_t interval;
/*
* Time at which the current decay interval logically started. We do
* not actually advance to a new epoch until sometime after it starts
* because of scheduling and computation delays, and it is even possible
* to completely skip epochs. In all cases, during epoch advancement we
* merge all relevant activity into the most recently recorded epoch.
*/
nstime_t epoch;
/* Deadline randomness generator. */
uint64_t jitter_state;
/*
* Deadline for current epoch. This is the sum of interval and per
* epoch jitter which is a uniform random variable in [0..interval).
* Epochs always advance by precise multiples of interval, but we
* randomize the deadline to reduce the likelihood of arenas purging in
* lockstep.
*/
nstime_t deadline;
/*
* Number of dirty pages at beginning of current epoch. During epoch
* advancement we use the delta between arena->decay.ndirty and
* arena->ndirty to determine how many dirty pages, if any, were
* generated.
*/
size_t ndirty;
/*
* Trailing log of how many unused dirty pages were generated during
* each of the past SMOOTHSTEP_NSTEPS decay epochs, where the last
* element is the most recent epoch. Corresponding epoch times are
* relative to epoch.
*/
size_t backlog[SMOOTHSTEP_NSTEPS];
};
struct arena_bin_s {
/*
* All operations on runcur, runs, and stats require that lock be
* locked. Run allocation/deallocation are protected by the arena lock,
* which may be acquired while holding one or more bin locks, but not
* vise versa.
*/
malloc_mutex_t lock;
/*
* Current run being used to service allocations of this bin's size
* class.
*/
arena_run_t *runcur;
/*
* Heap of non-full runs. This heap is used when looking for an
* existing run when runcur is no longer usable. We choose the
* non-full run that is lowest in memory; this policy tends to keep
* objects packed well, and it can also help reduce the number of
* almost-empty chunks.
*/
arena_run_heap_t runs;
/* Bin statistics. */
malloc_bin_stats_t stats;
};
struct arena_s {
/* This arena's index within the arenas array. */
unsigned ind;
/*
* Number of threads currently assigned to this arena, synchronized via
* atomic operations. Each thread has two distinct assignments, one for
* application-serving allocation, and the other for internal metadata
* allocation. Internal metadata must not be allocated from arenas
* created via the arenas.extend mallctl, because the arena.<i>.reset
* mallctl indiscriminately discards all allocations for the affected
* arena.
*
* 0: Application allocation.
* 1: Internal metadata allocation.
*/
unsigned nthreads[2];
/*
* There are three classes of arena operations from a locking
* perspective:
* 1) Thread assignment (modifies nthreads) is synchronized via atomics.
* 2) Bin-related operations are protected by bin locks.
* 3) Chunk- and run-related operations are protected by this mutex.
*/
malloc_mutex_t lock;
arena_stats_t stats;
/*
* List of tcaches for extant threads associated with this arena.
* Stats from these are merged incrementally, and at exit if
* opt_stats_print is enabled.
*/
ql_head(tcache_t) tcache_ql;
uint64_t prof_accumbytes;
/*
* PRNG state for cache index randomization of large allocation base
* pointers.
*/
size_t offset_state;
dss_prec_t dss_prec;
/* Extant arena chunks. */
ql_head(extent_node_t) achunks;
/* Extent serial number generator state. */
size_t extent_sn_next;
/*
* In order to avoid rapid chunk allocation/deallocation when an arena
* oscillates right on the cusp of needing a new chunk, cache the most
* recently freed chunk. The spare is left in the arena's chunk trees
* until it is deleted.
*
* There is one spare chunk per arena, rather than one spare total, in
* order to avoid interactions between multiple threads that could make
* a single spare inadequate.
*/
arena_chunk_t *spare;
/* Minimum ratio (log base 2) of nactive:ndirty. */
ssize_t lg_dirty_mult;
/* True if a thread is currently executing arena_purge_to_limit(). */
bool purging;
/* Number of pages in active runs and huge regions. */
size_t nactive;
/*
* Current count of pages within unused runs that are potentially
* dirty, and for which madvise(... MADV_DONTNEED) has not been called.
* By tracking this, we can institute a limit on how much dirty unused
* memory is mapped for each arena.
*/
size_t ndirty;
/*
* Unused dirty memory this arena manages. Dirty memory is conceptually
* tracked as an arbitrarily interleaved LRU of dirty runs and cached
* chunks, but the list linkage is actually semi-duplicated in order to
* avoid extra arena_chunk_map_misc_t space overhead.
*
* LRU-----------------------------------------------------------MRU
*
* /-- arena ---\
* | |
* | |
* |------------| /- chunk -\
* ...->|chunks_cache|<--------------------------->| /----\ |<--...
* |------------| | |node| |
* | | | | | |
* | | /- run -\ /- run -\ | | | |
* | | | | | | | | | |
* | | | | | | | | | |
* |------------| |-------| |-------| | |----| |
* ...->|runs_dirty |<-->|rd |<-->|rd |<---->|rd |<----...
* |------------| |-------| |-------| | |----| |
* | | | | | | | | | |
* | | | | | | | \----/ |
* | | \-------/ \-------/ | |
* | | | |
* | | | |
* \------------/ \---------/
*/
arena_runs_dirty_link_t runs_dirty;
extent_node_t chunks_cache;
/* Decay-based purging state. */
arena_decay_t decay;
/* Extant huge allocations. */
ql_head(extent_node_t) huge;
/* Synchronizes all huge allocation/update/deallocation. */
malloc_mutex_t huge_mtx;
/*
* Trees of chunks that were previously allocated (trees differ only in
* node ordering). These are used when allocating chunks, in an attempt
* to re-use address space. Depending on function, different tree
* orderings are needed, which is why there are two trees with the same
* contents.
*/
extent_tree_t chunks_szsnad_cached;
extent_tree_t chunks_ad_cached;
extent_tree_t chunks_szsnad_retained;
extent_tree_t chunks_ad_retained;
malloc_mutex_t chunks_mtx;
/* Cache of nodes that were allocated via base_alloc(). */
ql_head(extent_node_t) node_cache;
malloc_mutex_t node_cache_mtx;
/* User-configurable chunk hook functions. */
chunk_hooks_t chunk_hooks;
/* bins is used to store trees of free regions. */
arena_bin_t bins[NBINS];
/*
* Size-segregated address-ordered heaps of this arena's available runs,
* used for first-best-fit run allocation. Runs are quantized, i.e.
* they reside in the last heap which corresponds to a size class less
* than or equal to the run size.
*/
arena_run_heap_t runs_avail[NPSIZES];
};
/* Used in conjunction with tsd for fast arena-related context lookup. */
struct arena_tdata_s {
ticker_t decay_ticker;
};
#endif /* JEMALLOC_ARENA_STRUCTS_B */
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
static const size_t large_pad =
#ifdef JEMALLOC_CACHE_OBLIVIOUS
PAGE
#else
0
#endif
;
extern purge_mode_t opt_purge;
extern const char *purge_mode_names[];
extern ssize_t opt_lg_dirty_mult;
extern ssize_t opt_decay_time;
extern arena_bin_info_t arena_bin_info[NBINS];
extern size_t map_bias; /* Number of arena chunk header pages. */
extern size_t map_misc_offset;
extern size_t arena_maxrun; /* Max run size for arenas. */
extern size_t large_maxclass; /* Max large size class. */
extern unsigned nlclasses; /* Number of large size classes. */
extern unsigned nhclasses; /* Number of huge size classes. */
#ifdef JEMALLOC_JET
typedef size_t (run_quantize_t)(size_t);
extern run_quantize_t *run_quantize_floor;
extern run_quantize_t *run_quantize_ceil;
#endif
void arena_chunk_cache_maybe_insert(arena_t *arena, extent_node_t *node,
bool cache);
void arena_chunk_cache_maybe_remove(arena_t *arena, extent_node_t *node,
bool cache);
extent_node_t *arena_node_alloc(tsdn_t *tsdn, arena_t *arena);
void arena_node_dalloc(tsdn_t *tsdn, arena_t *arena, extent_node_t *node);
void *arena_chunk_alloc_huge(tsdn_t *tsdn, arena_t *arena, size_t usize,
size_t alignment, size_t *sn, bool *zero);
void arena_chunk_dalloc_huge(tsdn_t *tsdn, arena_t *arena, void *chunk,
size_t usize, size_t sn);
void arena_chunk_ralloc_huge_similar(tsdn_t *tsdn, arena_t *arena,
void *chunk, size_t oldsize, size_t usize);
void arena_chunk_ralloc_huge_shrink(tsdn_t *tsdn, arena_t *arena,
void *chunk, size_t oldsize, size_t usize, size_t sn);
bool arena_chunk_ralloc_huge_expand(tsdn_t *tsdn, arena_t *arena,
void *chunk, size_t oldsize, size_t usize, bool *zero);
ssize_t arena_lg_dirty_mult_get(tsdn_t *tsdn, arena_t *arena);
bool arena_lg_dirty_mult_set(tsdn_t *tsdn, arena_t *arena,
ssize_t lg_dirty_mult);
ssize_t arena_decay_time_get(tsdn_t *tsdn, arena_t *arena);
bool arena_decay_time_set(tsdn_t *tsdn, arena_t *arena, ssize_t decay_time);
void arena_purge(tsdn_t *tsdn, arena_t *arena, bool all);
void arena_maybe_purge(tsdn_t *tsdn, arena_t *arena);
void arena_reset(tsd_t *tsd, arena_t *arena);
void arena_tcache_fill_small(tsdn_t *tsdn, arena_t *arena,
tcache_bin_t *tbin, szind_t binind, uint64_t prof_accumbytes);
void arena_alloc_junk_small(void *ptr, arena_bin_info_t *bin_info,
bool zero);
#ifdef JEMALLOC_JET
typedef void (arena_redzone_corruption_t)(void *, size_t, bool, size_t,
uint8_t);
extern arena_redzone_corruption_t *arena_redzone_corruption;
typedef void (arena_dalloc_junk_small_t)(void *, arena_bin_info_t *);
extern arena_dalloc_junk_small_t *arena_dalloc_junk_small;
#else
void arena_dalloc_junk_small(void *ptr, arena_bin_info_t *bin_info);
#endif
void arena_quarantine_junk_small(void *ptr, size_t usize);
void *arena_malloc_large(tsdn_t *tsdn, arena_t *arena, szind_t ind,
bool zero);
void *arena_malloc_hard(tsdn_t *tsdn, arena_t *arena, size_t size,
szind_t ind, bool zero);
void *arena_palloc(tsdn_t *tsdn, arena_t *arena, size_t usize,
size_t alignment, bool zero, tcache_t *tcache);
void arena_prof_promoted(tsdn_t *tsdn, const void *ptr, size_t size);
void arena_dalloc_bin_junked_locked(tsdn_t *tsdn, arena_t *arena,
arena_chunk_t *chunk, void *ptr, arena_chunk_map_bits_t *bitselm);
void arena_dalloc_bin(tsdn_t *tsdn, arena_t *arena, arena_chunk_t *chunk,
void *ptr, size_t pageind, arena_chunk_map_bits_t *bitselm);
void arena_dalloc_small(tsdn_t *tsdn, arena_t *arena, arena_chunk_t *chunk,
void *ptr, size_t pageind);
#ifdef JEMALLOC_JET
typedef void (arena_dalloc_junk_large_t)(void *, size_t);
extern arena_dalloc_junk_large_t *arena_dalloc_junk_large;
#else
void arena_dalloc_junk_large(void *ptr, size_t usize);
#endif
void arena_dalloc_large_junked_locked(tsdn_t *tsdn, arena_t *arena,
arena_chunk_t *chunk, void *ptr);
void arena_dalloc_large(tsdn_t *tsdn, arena_t *arena, arena_chunk_t *chunk,
void *ptr);
#ifdef JEMALLOC_JET
typedef void (arena_ralloc_junk_large_t)(void *, size_t, size_t);
extern arena_ralloc_junk_large_t *arena_ralloc_junk_large;
#endif
bool arena_ralloc_no_move(tsdn_t *tsdn, void *ptr, size_t oldsize,
size_t size, size_t extra, bool zero);
void *arena_ralloc(tsd_t *tsd, arena_t *arena, void *ptr, size_t oldsize,
size_t size, size_t alignment, bool zero, tcache_t *tcache);
dss_prec_t arena_dss_prec_get(tsdn_t *tsdn, arena_t *arena);
bool arena_dss_prec_set(tsdn_t *tsdn, arena_t *arena, dss_prec_t dss_prec);
ssize_t arena_lg_dirty_mult_default_get(void);
bool arena_lg_dirty_mult_default_set(ssize_t lg_dirty_mult);
ssize_t arena_decay_time_default_get(void);
bool arena_decay_time_default_set(ssize_t decay_time);
void arena_basic_stats_merge(tsdn_t *tsdn, arena_t *arena,
unsigned *nthreads, const char **dss, ssize_t *lg_dirty_mult,
ssize_t *decay_time, size_t *nactive, size_t *ndirty);
void arena_stats_merge(tsdn_t *tsdn, arena_t *arena, unsigned *nthreads,
const char **dss, ssize_t *lg_dirty_mult, ssize_t *decay_time,
size_t *nactive, size_t *ndirty, arena_stats_t *astats,
malloc_bin_stats_t *bstats, malloc_large_stats_t *lstats,
malloc_huge_stats_t *hstats);
unsigned arena_nthreads_get(arena_t *arena, bool internal);
void arena_nthreads_inc(arena_t *arena, bool internal);
void arena_nthreads_dec(arena_t *arena, bool internal);
size_t arena_extent_sn_next(arena_t *arena);
arena_t *arena_new(tsdn_t *tsdn, unsigned ind);
void arena_boot(void);
void arena_prefork0(tsdn_t *tsdn, arena_t *arena);
void arena_prefork1(tsdn_t *tsdn, arena_t *arena);
void arena_prefork2(tsdn_t *tsdn, arena_t *arena);
void arena_prefork3(tsdn_t *tsdn, arena_t *arena);
void arena_postfork_parent(tsdn_t *tsdn, arena_t *arena);
void arena_postfork_child(tsdn_t *tsdn, arena_t *arena);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
arena_chunk_map_bits_t *arena_bitselm_get_mutable(arena_chunk_t *chunk,
size_t pageind);
const arena_chunk_map_bits_t *arena_bitselm_get_const(
const arena_chunk_t *chunk, size_t pageind);
arena_chunk_map_misc_t *arena_miscelm_get_mutable(arena_chunk_t *chunk,
size_t pageind);
const arena_chunk_map_misc_t *arena_miscelm_get_const(
const arena_chunk_t *chunk, size_t pageind);
size_t arena_miscelm_to_pageind(const arena_chunk_map_misc_t *miscelm);
void *arena_miscelm_to_rpages(const arena_chunk_map_misc_t *miscelm);
arena_chunk_map_misc_t *arena_rd_to_miscelm(arena_runs_dirty_link_t *rd);
arena_chunk_map_misc_t *arena_run_to_miscelm(arena_run_t *run);
size_t *arena_mapbitsp_get_mutable(arena_chunk_t *chunk, size_t pageind);
const size_t *arena_mapbitsp_get_const(const arena_chunk_t *chunk,
size_t pageind);
size_t arena_mapbitsp_read(const size_t *mapbitsp);
size_t arena_mapbits_get(const arena_chunk_t *chunk, size_t pageind);
size_t arena_mapbits_size_decode(size_t mapbits);
size_t arena_mapbits_unallocated_size_get(const arena_chunk_t *chunk,
size_t pageind);
size_t arena_mapbits_large_size_get(const arena_chunk_t *chunk,
size_t pageind);
size_t arena_mapbits_small_runind_get(const arena_chunk_t *chunk,
size_t pageind);
szind_t arena_mapbits_binind_get(const arena_chunk_t *chunk, size_t pageind);
size_t arena_mapbits_dirty_get(const arena_chunk_t *chunk, size_t pageind);
size_t arena_mapbits_unzeroed_get(const arena_chunk_t *chunk, size_t pageind);
size_t arena_mapbits_decommitted_get(const arena_chunk_t *chunk,
size_t pageind);
size_t arena_mapbits_large_get(const arena_chunk_t *chunk, size_t pageind);
size_t arena_mapbits_allocated_get(const arena_chunk_t *chunk, size_t pageind);
void arena_mapbitsp_write(size_t *mapbitsp, size_t mapbits);
size_t arena_mapbits_size_encode(size_t size);
void arena_mapbits_unallocated_set(arena_chunk_t *chunk, size_t pageind,
size_t size, size_t flags);
void arena_mapbits_unallocated_size_set(arena_chunk_t *chunk, size_t pageind,
size_t size);
void arena_mapbits_internal_set(arena_chunk_t *chunk, size_t pageind,
size_t flags);
void arena_mapbits_large_set(arena_chunk_t *chunk, size_t pageind,
size_t size, size_t flags);
void arena_mapbits_large_binind_set(arena_chunk_t *chunk, size_t pageind,
szind_t binind);
void arena_mapbits_small_set(arena_chunk_t *chunk, size_t pageind,
size_t runind, szind_t binind, size_t flags);
void arena_metadata_allocated_add(arena_t *arena, size_t size);
void arena_metadata_allocated_sub(arena_t *arena, size_t size);
size_t arena_metadata_allocated_get(arena_t *arena);
bool arena_prof_accum_impl(arena_t *arena, uint64_t accumbytes);
bool arena_prof_accum_locked(arena_t *arena, uint64_t accumbytes);
bool arena_prof_accum(tsdn_t *tsdn, arena_t *arena, uint64_t accumbytes);
szind_t arena_ptr_small_binind_get(const void *ptr, size_t mapbits);
szind_t arena_bin_index(arena_t *arena, arena_bin_t *bin);
size_t arena_run_regind(arena_run_t *run, arena_bin_info_t *bin_info,
const void *ptr);
prof_tctx_t *arena_prof_tctx_get(tsdn_t *tsdn, const void *ptr);
void arena_prof_tctx_set(tsdn_t *tsdn, const void *ptr, size_t usize,
prof_tctx_t *tctx);
void arena_prof_tctx_reset(tsdn_t *tsdn, const void *ptr, size_t usize,
const void *old_ptr, prof_tctx_t *old_tctx);
void arena_decay_ticks(tsdn_t *tsdn, arena_t *arena, unsigned nticks);
void arena_decay_tick(tsdn_t *tsdn, arena_t *arena);
void *arena_malloc(tsdn_t *tsdn, arena_t *arena, size_t size, szind_t ind,
bool zero, tcache_t *tcache, bool slow_path);
arena_t *arena_aalloc(const void *ptr);
size_t arena_salloc(tsdn_t *tsdn, const void *ptr, bool demote);
void arena_dalloc(tsdn_t *tsdn, void *ptr, tcache_t *tcache, bool slow_path);
void arena_sdalloc(tsdn_t *tsdn, void *ptr, size_t size, tcache_t *tcache,
bool slow_path);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_ARENA_C_))
# ifdef JEMALLOC_ARENA_INLINE_A
JEMALLOC_ALWAYS_INLINE arena_chunk_map_bits_t *
arena_bitselm_get_mutable(arena_chunk_t *chunk, size_t pageind)
{
assert(pageind >= map_bias);
assert(pageind < chunk_npages);
return (&chunk->map_bits[pageind-map_bias]);
}
JEMALLOC_ALWAYS_INLINE const arena_chunk_map_bits_t *
arena_bitselm_get_const(const arena_chunk_t *chunk, size_t pageind)
{
return (arena_bitselm_get_mutable((arena_chunk_t *)chunk, pageind));
}
JEMALLOC_ALWAYS_INLINE arena_chunk_map_misc_t *
arena_miscelm_get_mutable(arena_chunk_t *chunk, size_t pageind)
{
assert(pageind >= map_bias);
assert(pageind < chunk_npages);
return ((arena_chunk_map_misc_t *)((uintptr_t)chunk +
(uintptr_t)map_misc_offset) + pageind-map_bias);
}
JEMALLOC_ALWAYS_INLINE const arena_chunk_map_misc_t *
arena_miscelm_get_const(const arena_chunk_t *chunk, size_t pageind)
{
return (arena_miscelm_get_mutable((arena_chunk_t *)chunk, pageind));
}
JEMALLOC_ALWAYS_INLINE size_t
arena_miscelm_to_pageind(const arena_chunk_map_misc_t *miscelm)
{
arena_chunk_t *chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(miscelm);
size_t pageind = ((uintptr_t)miscelm - ((uintptr_t)chunk +
map_misc_offset)) / sizeof(arena_chunk_map_misc_t) + map_bias;
assert(pageind >= map_bias);
assert(pageind < chunk_npages);
return (pageind);
}
JEMALLOC_ALWAYS_INLINE void *
arena_miscelm_to_rpages(const arena_chunk_map_misc_t *miscelm)
{
arena_chunk_t *chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(miscelm);
size_t pageind = arena_miscelm_to_pageind(miscelm);
return ((void *)((uintptr_t)chunk + (pageind << LG_PAGE)));
}
JEMALLOC_ALWAYS_INLINE arena_chunk_map_misc_t *
arena_rd_to_miscelm(arena_runs_dirty_link_t *rd)
{
arena_chunk_map_misc_t *miscelm = (arena_chunk_map_misc_t
*)((uintptr_t)rd - offsetof(arena_chunk_map_misc_t, rd));
assert(arena_miscelm_to_pageind(miscelm) >= map_bias);
assert(arena_miscelm_to_pageind(miscelm) < chunk_npages);
return (miscelm);
}
JEMALLOC_ALWAYS_INLINE arena_chunk_map_misc_t *
arena_run_to_miscelm(arena_run_t *run)
{
arena_chunk_map_misc_t *miscelm = (arena_chunk_map_misc_t
*)((uintptr_t)run - offsetof(arena_chunk_map_misc_t, run));
assert(arena_miscelm_to_pageind(miscelm) >= map_bias);
assert(arena_miscelm_to_pageind(miscelm) < chunk_npages);
return (miscelm);
}
JEMALLOC_ALWAYS_INLINE size_t *
arena_mapbitsp_get_mutable(arena_chunk_t *chunk, size_t pageind)
{
return (&arena_bitselm_get_mutable(chunk, pageind)->bits);
}
JEMALLOC_ALWAYS_INLINE const size_t *
arena_mapbitsp_get_const(const arena_chunk_t *chunk, size_t pageind)
{
return (arena_mapbitsp_get_mutable((arena_chunk_t *)chunk, pageind));
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbitsp_read(const size_t *mapbitsp)
{
return (*mapbitsp);
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbits_get(const arena_chunk_t *chunk, size_t pageind)
{
return (arena_mapbitsp_read(arena_mapbitsp_get_const(chunk, pageind)));
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbits_size_decode(size_t mapbits)
{
size_t size;
#if CHUNK_MAP_SIZE_SHIFT > 0
size = (mapbits & CHUNK_MAP_SIZE_MASK) >> CHUNK_MAP_SIZE_SHIFT;
#elif CHUNK_MAP_SIZE_SHIFT == 0
size = mapbits & CHUNK_MAP_SIZE_MASK;
#else
size = (mapbits & CHUNK_MAP_SIZE_MASK) << -CHUNK_MAP_SIZE_SHIFT;
#endif
return (size);
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbits_unallocated_size_get(const arena_chunk_t *chunk, size_t pageind)
{
size_t mapbits;
mapbits = arena_mapbits_get(chunk, pageind);
assert((mapbits & (CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED)) == 0);
return (arena_mapbits_size_decode(mapbits));
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbits_large_size_get(const arena_chunk_t *chunk, size_t pageind)
{
size_t mapbits;
mapbits = arena_mapbits_get(chunk, pageind);
assert((mapbits & (CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED)) ==
(CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED));
return (arena_mapbits_size_decode(mapbits));
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbits_small_runind_get(const arena_chunk_t *chunk, size_t pageind)
{
size_t mapbits;
mapbits = arena_mapbits_get(chunk, pageind);
assert((mapbits & (CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED)) ==
CHUNK_MAP_ALLOCATED);
return (mapbits >> CHUNK_MAP_RUNIND_SHIFT);
}
JEMALLOC_ALWAYS_INLINE szind_t
arena_mapbits_binind_get(const arena_chunk_t *chunk, size_t pageind)
{
size_t mapbits;
szind_t binind;
mapbits = arena_mapbits_get(chunk, pageind);
binind = (mapbits & CHUNK_MAP_BININD_MASK) >> CHUNK_MAP_BININD_SHIFT;
assert(binind < NBINS || binind == BININD_INVALID);
return (binind);
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbits_dirty_get(const arena_chunk_t *chunk, size_t pageind)
{
size_t mapbits;
mapbits = arena_mapbits_get(chunk, pageind);
assert((mapbits & CHUNK_MAP_DECOMMITTED) == 0 || (mapbits &
(CHUNK_MAP_DIRTY|CHUNK_MAP_UNZEROED)) == 0);
return (mapbits & CHUNK_MAP_DIRTY);
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbits_unzeroed_get(const arena_chunk_t *chunk, size_t pageind)
{
size_t mapbits;
mapbits = arena_mapbits_get(chunk, pageind);
assert((mapbits & CHUNK_MAP_DECOMMITTED) == 0 || (mapbits &
(CHUNK_MAP_DIRTY|CHUNK_MAP_UNZEROED)) == 0);
return (mapbits & CHUNK_MAP_UNZEROED);
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbits_decommitted_get(const arena_chunk_t *chunk, size_t pageind)
{
size_t mapbits;
mapbits = arena_mapbits_get(chunk, pageind);
assert((mapbits & CHUNK_MAP_DECOMMITTED) == 0 || (mapbits &
(CHUNK_MAP_DIRTY|CHUNK_MAP_UNZEROED)) == 0);
return (mapbits & CHUNK_MAP_DECOMMITTED);
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbits_large_get(const arena_chunk_t *chunk, size_t pageind)
{
size_t mapbits;
mapbits = arena_mapbits_get(chunk, pageind);
return (mapbits & CHUNK_MAP_LARGE);
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbits_allocated_get(const arena_chunk_t *chunk, size_t pageind)
{
size_t mapbits;
mapbits = arena_mapbits_get(chunk, pageind);
return (mapbits & CHUNK_MAP_ALLOCATED);
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbitsp_write(size_t *mapbitsp, size_t mapbits)
{
*mapbitsp = mapbits;
}
JEMALLOC_ALWAYS_INLINE size_t
arena_mapbits_size_encode(size_t size)
{
size_t mapbits;
#if CHUNK_MAP_SIZE_SHIFT > 0
mapbits = size << CHUNK_MAP_SIZE_SHIFT;
#elif CHUNK_MAP_SIZE_SHIFT == 0
mapbits = size;
#else
mapbits = size >> -CHUNK_MAP_SIZE_SHIFT;
#endif
assert((mapbits & ~CHUNK_MAP_SIZE_MASK) == 0);
return (mapbits);
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbits_unallocated_set(arena_chunk_t *chunk, size_t pageind, size_t size,
size_t flags)
{
size_t *mapbitsp = arena_mapbitsp_get_mutable(chunk, pageind);
assert((size & PAGE_MASK) == 0);
assert((flags & CHUNK_MAP_FLAGS_MASK) == flags);
assert((flags & CHUNK_MAP_DECOMMITTED) == 0 || (flags &
(CHUNK_MAP_DIRTY|CHUNK_MAP_UNZEROED)) == 0);
arena_mapbitsp_write(mapbitsp, arena_mapbits_size_encode(size) |
CHUNK_MAP_BININD_INVALID | flags);
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbits_unallocated_size_set(arena_chunk_t *chunk, size_t pageind,
size_t size)
{
size_t *mapbitsp = arena_mapbitsp_get_mutable(chunk, pageind);
size_t mapbits = arena_mapbitsp_read(mapbitsp);
assert((size & PAGE_MASK) == 0);
assert((mapbits & (CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED)) == 0);
arena_mapbitsp_write(mapbitsp, arena_mapbits_size_encode(size) |
(mapbits & ~CHUNK_MAP_SIZE_MASK));
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbits_internal_set(arena_chunk_t *chunk, size_t pageind, size_t flags)
{
size_t *mapbitsp = arena_mapbitsp_get_mutable(chunk, pageind);
assert((flags & CHUNK_MAP_UNZEROED) == flags);
arena_mapbitsp_write(mapbitsp, flags);
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbits_large_set(arena_chunk_t *chunk, size_t pageind, size_t size,
size_t flags)
{
size_t *mapbitsp = arena_mapbitsp_get_mutable(chunk, pageind);
assert((size & PAGE_MASK) == 0);
assert((flags & CHUNK_MAP_FLAGS_MASK) == flags);
assert((flags & CHUNK_MAP_DECOMMITTED) == 0 || (flags &
(CHUNK_MAP_DIRTY|CHUNK_MAP_UNZEROED)) == 0);
arena_mapbitsp_write(mapbitsp, arena_mapbits_size_encode(size) |
CHUNK_MAP_BININD_INVALID | flags | CHUNK_MAP_LARGE |
CHUNK_MAP_ALLOCATED);
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbits_large_binind_set(arena_chunk_t *chunk, size_t pageind,
szind_t binind)
{
size_t *mapbitsp = arena_mapbitsp_get_mutable(chunk, pageind);
size_t mapbits = arena_mapbitsp_read(mapbitsp);
assert(binind <= BININD_INVALID);
assert(arena_mapbits_large_size_get(chunk, pageind) == LARGE_MINCLASS +
large_pad);
arena_mapbitsp_write(mapbitsp, (mapbits & ~CHUNK_MAP_BININD_MASK) |
(binind << CHUNK_MAP_BININD_SHIFT));
}
JEMALLOC_ALWAYS_INLINE void
arena_mapbits_small_set(arena_chunk_t *chunk, size_t pageind, size_t runind,
szind_t binind, size_t flags)
{
size_t *mapbitsp = arena_mapbitsp_get_mutable(chunk, pageind);
assert(binind < BININD_INVALID);
assert(pageind - runind >= map_bias);
assert((flags & CHUNK_MAP_UNZEROED) == flags);
arena_mapbitsp_write(mapbitsp, (runind << CHUNK_MAP_RUNIND_SHIFT) |
(binind << CHUNK_MAP_BININD_SHIFT) | flags | CHUNK_MAP_ALLOCATED);
}
JEMALLOC_INLINE void
arena_metadata_allocated_add(arena_t *arena, size_t size)
{
atomic_add_z(&arena->stats.metadata_allocated, size);
}
JEMALLOC_INLINE void
arena_metadata_allocated_sub(arena_t *arena, size_t size)
{
atomic_sub_z(&arena->stats.metadata_allocated, size);
}
JEMALLOC_INLINE size_t
arena_metadata_allocated_get(arena_t *arena)
{
return (atomic_read_z(&arena->stats.metadata_allocated));
}
JEMALLOC_INLINE bool
arena_prof_accum_impl(arena_t *arena, uint64_t accumbytes)
{
cassert(config_prof);
assert(prof_interval != 0);
arena->prof_accumbytes += accumbytes;
if (arena->prof_accumbytes >= prof_interval) {
arena->prof_accumbytes -= prof_interval;
return (true);
}
return (false);
}
JEMALLOC_INLINE bool
arena_prof_accum_locked(arena_t *arena, uint64_t accumbytes)
{
cassert(config_prof);
if (likely(prof_interval == 0))
return (false);
return (arena_prof_accum_impl(arena, accumbytes));
}
JEMALLOC_INLINE bool
arena_prof_accum(tsdn_t *tsdn, arena_t *arena, uint64_t accumbytes)
{
cassert(config_prof);
if (likely(prof_interval == 0))
return (false);
{
bool ret;
malloc_mutex_lock(tsdn, &arena->lock);
ret = arena_prof_accum_impl(arena, accumbytes);
malloc_mutex_unlock(tsdn, &arena->lock);
return (ret);
}
}
JEMALLOC_ALWAYS_INLINE szind_t
arena_ptr_small_binind_get(const void *ptr, size_t mapbits)
{
szind_t binind;
binind = (mapbits & CHUNK_MAP_BININD_MASK) >> CHUNK_MAP_BININD_SHIFT;
if (config_debug) {
arena_chunk_t *chunk;
arena_t *arena;
size_t pageind;
size_t actual_mapbits;
size_t rpages_ind;
const arena_run_t *run;
arena_bin_t *bin;
szind_t run_binind, actual_binind;
arena_bin_info_t *bin_info;
const arena_chunk_map_misc_t *miscelm;
const void *rpages;
assert(binind != BININD_INVALID);
assert(binind < NBINS);
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
arena = extent_node_arena_get(&chunk->node);
pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE;
actual_mapbits = arena_mapbits_get(chunk, pageind);
assert(mapbits == actual_mapbits);
assert(arena_mapbits_large_get(chunk, pageind) == 0);
assert(arena_mapbits_allocated_get(chunk, pageind) != 0);
rpages_ind = pageind - arena_mapbits_small_runind_get(chunk,
pageind);
miscelm = arena_miscelm_get_const(chunk, rpages_ind);
run = &miscelm->run;
run_binind = run->binind;
bin = &arena->bins[run_binind];
actual_binind = (szind_t)(bin - arena->bins);
assert(run_binind == actual_binind);
bin_info = &arena_bin_info[actual_binind];
rpages = arena_miscelm_to_rpages(miscelm);
assert(((uintptr_t)ptr - ((uintptr_t)rpages +
(uintptr_t)bin_info->reg0_offset)) % bin_info->reg_interval
== 0);
}
return (binind);
}
# endif /* JEMALLOC_ARENA_INLINE_A */
# ifdef JEMALLOC_ARENA_INLINE_B
JEMALLOC_INLINE szind_t
arena_bin_index(arena_t *arena, arena_bin_t *bin)
{
szind_t binind = (szind_t)(bin - arena->bins);
assert(binind < NBINS);
return (binind);
}
JEMALLOC_INLINE size_t
arena_run_regind(arena_run_t *run, arena_bin_info_t *bin_info, const void *ptr)
{
size_t diff, interval, shift, regind;
arena_chunk_map_misc_t *miscelm = arena_run_to_miscelm(run);
void *rpages = arena_miscelm_to_rpages(miscelm);
/*
* Freeing a pointer lower than region zero can cause assertion
* failure.
*/
assert((uintptr_t)ptr >= (uintptr_t)rpages +
(uintptr_t)bin_info->reg0_offset);
/*
* Avoid doing division with a variable divisor if possible. Using
* actual division here can reduce allocator throughput by over 20%!
*/
diff = (size_t)((uintptr_t)ptr - (uintptr_t)rpages -
bin_info->reg0_offset);
/* Rescale (factor powers of 2 out of the numerator and denominator). */
interval = bin_info->reg_interval;
shift = ffs_zu(interval) - 1;
diff >>= shift;
interval >>= shift;
if (interval == 1) {
/* The divisor was a power of 2. */
regind = diff;
} else {
/*
* To divide by a number D that is not a power of two we
* multiply by (2^21 / D) and then right shift by 21 positions.
*
* X / D
*
* becomes
*
* (X * interval_invs[D - 3]) >> SIZE_INV_SHIFT
*
* We can omit the first three elements, because we never
* divide by 0, and 1 and 2 are both powers of two, which are
* handled above.
*/
#define SIZE_INV_SHIFT ((sizeof(size_t) << 3) - LG_RUN_MAXREGS)
#define SIZE_INV(s) (((ZU(1) << SIZE_INV_SHIFT) / (s)) + 1)
static const size_t interval_invs[] = {
SIZE_INV(3),
SIZE_INV(4), SIZE_INV(5), SIZE_INV(6), SIZE_INV(7),
SIZE_INV(8), SIZE_INV(9), SIZE_INV(10), SIZE_INV(11),
SIZE_INV(12), SIZE_INV(13), SIZE_INV(14), SIZE_INV(15),
SIZE_INV(16), SIZE_INV(17), SIZE_INV(18), SIZE_INV(19),
SIZE_INV(20), SIZE_INV(21), SIZE_INV(22), SIZE_INV(23),
SIZE_INV(24), SIZE_INV(25), SIZE_INV(26), SIZE_INV(27),
SIZE_INV(28), SIZE_INV(29), SIZE_INV(30), SIZE_INV(31)
};
if (likely(interval <= ((sizeof(interval_invs) / sizeof(size_t))
+ 2))) {
regind = (diff * interval_invs[interval - 3]) >>
SIZE_INV_SHIFT;
} else
regind = diff / interval;
#undef SIZE_INV
#undef SIZE_INV_SHIFT
}
assert(diff == regind * interval);
assert(regind < bin_info->nregs);
return (regind);
}
JEMALLOC_INLINE prof_tctx_t *
arena_prof_tctx_get(tsdn_t *tsdn, const void *ptr)
{
prof_tctx_t *ret;
arena_chunk_t *chunk;
cassert(config_prof);
assert(ptr != NULL);
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (likely(chunk != ptr)) {
size_t pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE;
size_t mapbits = arena_mapbits_get(chunk, pageind);
assert((mapbits & CHUNK_MAP_ALLOCATED) != 0);
if (likely((mapbits & CHUNK_MAP_LARGE) == 0))
ret = (prof_tctx_t *)(uintptr_t)1U;
else {
arena_chunk_map_misc_t *elm =
arena_miscelm_get_mutable(chunk, pageind);
ret = atomic_read_p(&elm->prof_tctx_pun);
}
} else
ret = huge_prof_tctx_get(tsdn, ptr);
return (ret);
}
JEMALLOC_INLINE void
arena_prof_tctx_set(tsdn_t *tsdn, const void *ptr, size_t usize,
prof_tctx_t *tctx)
{
arena_chunk_t *chunk;
cassert(config_prof);
assert(ptr != NULL);
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (likely(chunk != ptr)) {
size_t pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE;
assert(arena_mapbits_allocated_get(chunk, pageind) != 0);
if (unlikely(usize > SMALL_MAXCLASS || (uintptr_t)tctx >
(uintptr_t)1U)) {
arena_chunk_map_misc_t *elm;
assert(arena_mapbits_large_get(chunk, pageind) != 0);
elm = arena_miscelm_get_mutable(chunk, pageind);
atomic_write_p(&elm->prof_tctx_pun, tctx);
} else {
/*
* tctx must always be initialized for large runs.
* Assert that the surrounding conditional logic is
* equivalent to checking whether ptr refers to a large
* run.
*/
assert(arena_mapbits_large_get(chunk, pageind) == 0);
}
} else
huge_prof_tctx_set(tsdn, ptr, tctx);
}
JEMALLOC_INLINE void
arena_prof_tctx_reset(tsdn_t *tsdn, const void *ptr, size_t usize,
const void *old_ptr, prof_tctx_t *old_tctx)
{
cassert(config_prof);
assert(ptr != NULL);
if (unlikely(usize > SMALL_MAXCLASS || (ptr == old_ptr &&
(uintptr_t)old_tctx > (uintptr_t)1U))) {
arena_chunk_t *chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (likely(chunk != ptr)) {
size_t pageind;
arena_chunk_map_misc_t *elm;
pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >>
LG_PAGE;
assert(arena_mapbits_allocated_get(chunk, pageind) !=
0);
assert(arena_mapbits_large_get(chunk, pageind) != 0);
elm = arena_miscelm_get_mutable(chunk, pageind);
atomic_write_p(&elm->prof_tctx_pun,
(prof_tctx_t *)(uintptr_t)1U);
} else
huge_prof_tctx_reset(tsdn, ptr);
}
}
JEMALLOC_ALWAYS_INLINE void
arena_decay_ticks(tsdn_t *tsdn, arena_t *arena, unsigned nticks)
{
tsd_t *tsd;
ticker_t *decay_ticker;
if (unlikely(tsdn_null(tsdn)))
return;
tsd = tsdn_tsd(tsdn);
decay_ticker = decay_ticker_get(tsd, arena->ind);
if (unlikely(decay_ticker == NULL))
return;
if (unlikely(ticker_ticks(decay_ticker, nticks)))
arena_purge(tsdn, arena, false);
}
JEMALLOC_ALWAYS_INLINE void
arena_decay_tick(tsdn_t *tsdn, arena_t *arena)
{
arena_decay_ticks(tsdn, arena, 1);
}
JEMALLOC_ALWAYS_INLINE void *
arena_malloc(tsdn_t *tsdn, arena_t *arena, size_t size, szind_t ind, bool zero,
tcache_t *tcache, bool slow_path)
{
assert(!tsdn_null(tsdn) || tcache == NULL);
assert(size != 0);
if (likely(tcache != NULL)) {
if (likely(size <= SMALL_MAXCLASS)) {
return (tcache_alloc_small(tsdn_tsd(tsdn), arena,
tcache, size, ind, zero, slow_path));
}
if (likely(size <= tcache_maxclass)) {
return (tcache_alloc_large(tsdn_tsd(tsdn), arena,
tcache, size, ind, zero, slow_path));
}
/* (size > tcache_maxclass) case falls through. */
assert(size > tcache_maxclass);
}
return (arena_malloc_hard(tsdn, arena, size, ind, zero));
}
JEMALLOC_ALWAYS_INLINE arena_t *
arena_aalloc(const void *ptr)
{
arena_chunk_t *chunk;
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (likely(chunk != ptr))
return (extent_node_arena_get(&chunk->node));
else
return (huge_aalloc(ptr));
}
/* Return the size of the allocation pointed to by ptr. */
JEMALLOC_ALWAYS_INLINE size_t
arena_salloc(tsdn_t *tsdn, const void *ptr, bool demote)
{
size_t ret;
arena_chunk_t *chunk;
size_t pageind;
szind_t binind;
assert(ptr != NULL);
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (likely(chunk != ptr)) {
pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE;
assert(arena_mapbits_allocated_get(chunk, pageind) != 0);
binind = arena_mapbits_binind_get(chunk, pageind);
if (unlikely(binind == BININD_INVALID || (config_prof && !demote
&& arena_mapbits_large_get(chunk, pageind) != 0))) {
/*
* Large allocation. In the common case (demote), and
* as this is an inline function, most callers will only
* end up looking at binind to determine that ptr is a
* small allocation.
*/
assert(config_cache_oblivious || ((uintptr_t)ptr &
PAGE_MASK) == 0);
ret = arena_mapbits_large_size_get(chunk, pageind) -
large_pad;
assert(ret != 0);
assert(pageind + ((ret+large_pad)>>LG_PAGE) <=
chunk_npages);
assert(arena_mapbits_dirty_get(chunk, pageind) ==
arena_mapbits_dirty_get(chunk,
pageind+((ret+large_pad)>>LG_PAGE)-1));
} else {
/*
* Small allocation (possibly promoted to a large
* object).
*/
assert(arena_mapbits_large_get(chunk, pageind) != 0 ||
arena_ptr_small_binind_get(ptr,
arena_mapbits_get(chunk, pageind)) == binind);
ret = index2size(binind);
}
} else
ret = huge_salloc(tsdn, ptr);
return (ret);
}
JEMALLOC_ALWAYS_INLINE void
arena_dalloc(tsdn_t *tsdn, void *ptr, tcache_t *tcache, bool slow_path)
{
arena_chunk_t *chunk;
size_t pageind, mapbits;
assert(!tsdn_null(tsdn) || tcache == NULL);
assert(ptr != NULL);
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (likely(chunk != ptr)) {
pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE;
mapbits = arena_mapbits_get(chunk, pageind);
assert(arena_mapbits_allocated_get(chunk, pageind) != 0);
if (likely((mapbits & CHUNK_MAP_LARGE) == 0)) {
/* Small allocation. */
if (likely(tcache != NULL)) {
szind_t binind = arena_ptr_small_binind_get(ptr,
mapbits);
tcache_dalloc_small(tsdn_tsd(tsdn), tcache, ptr,
binind, slow_path);
} else {
arena_dalloc_small(tsdn,
extent_node_arena_get(&chunk->node), chunk,
ptr, pageind);
}
} else {
size_t size = arena_mapbits_large_size_get(chunk,
pageind);
assert(config_cache_oblivious || ((uintptr_t)ptr &
PAGE_MASK) == 0);
if (likely(tcache != NULL) && size - large_pad <=
tcache_maxclass) {
tcache_dalloc_large(tsdn_tsd(tsdn), tcache, ptr,
size - large_pad, slow_path);
} else {
arena_dalloc_large(tsdn,
extent_node_arena_get(&chunk->node), chunk,
ptr);
}
}
} else
huge_dalloc(tsdn, ptr);
}
JEMALLOC_ALWAYS_INLINE void
arena_sdalloc(tsdn_t *tsdn, void *ptr, size_t size, tcache_t *tcache,
bool slow_path)
{
arena_chunk_t *chunk;
assert(!tsdn_null(tsdn) || tcache == NULL);
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (likely(chunk != ptr)) {
if (config_prof && opt_prof) {
size_t pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >>
LG_PAGE;
assert(arena_mapbits_allocated_get(chunk, pageind) !=
0);
if (arena_mapbits_large_get(chunk, pageind) != 0) {
/*
* Make sure to use promoted size, not request
* size.
*/
size = arena_mapbits_large_size_get(chunk,
pageind) - large_pad;
}
}
assert(s2u(size) == s2u(arena_salloc(tsdn, ptr, false)));
if (likely(size <= SMALL_MAXCLASS)) {
/* Small allocation. */
if (likely(tcache != NULL)) {
szind_t binind = size2index(size);
tcache_dalloc_small(tsdn_tsd(tsdn), tcache, ptr,
binind, slow_path);
} else {
size_t pageind = ((uintptr_t)ptr -
(uintptr_t)chunk) >> LG_PAGE;
arena_dalloc_small(tsdn,
extent_node_arena_get(&chunk->node), chunk,
ptr, pageind);
}
} else {
assert(config_cache_oblivious || ((uintptr_t)ptr &
PAGE_MASK) == 0);
if (likely(tcache != NULL) && size <= tcache_maxclass) {
tcache_dalloc_large(tsdn_tsd(tsdn), tcache, ptr,
size, slow_path);
} else {
arena_dalloc_large(tsdn,
extent_node_arena_get(&chunk->node), chunk,
ptr);
}
}
} else
huge_dalloc(tsdn, ptr);
}
# endif /* JEMALLOC_ARENA_INLINE_B */
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 49,079 | 31.120419 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/ql.h
|
/* List definitions. */
#define ql_head(a_type) \
struct { \
a_type *qlh_first; \
}
#define ql_head_initializer(a_head) {NULL}
#define ql_elm(a_type) qr(a_type)
/* List functions. */
#define ql_new(a_head) do { \
(a_head)->qlh_first = NULL; \
} while (0)
#define ql_elm_new(a_elm, a_field) qr_new((a_elm), a_field)
#define ql_first(a_head) ((a_head)->qlh_first)
#define ql_last(a_head, a_field) \
((ql_first(a_head) != NULL) \
? qr_prev(ql_first(a_head), a_field) : NULL)
#define ql_next(a_head, a_elm, a_field) \
((ql_last(a_head, a_field) != (a_elm)) \
? qr_next((a_elm), a_field) : NULL)
#define ql_prev(a_head, a_elm, a_field) \
((ql_first(a_head) != (a_elm)) ? qr_prev((a_elm), a_field) \
: NULL)
#define ql_before_insert(a_head, a_qlelm, a_elm, a_field) do { \
qr_before_insert((a_qlelm), (a_elm), a_field); \
if (ql_first(a_head) == (a_qlelm)) { \
ql_first(a_head) = (a_elm); \
} \
} while (0)
#define ql_after_insert(a_qlelm, a_elm, a_field) \
qr_after_insert((a_qlelm), (a_elm), a_field)
#define ql_head_insert(a_head, a_elm, a_field) do { \
if (ql_first(a_head) != NULL) { \
qr_before_insert(ql_first(a_head), (a_elm), a_field); \
} \
ql_first(a_head) = (a_elm); \
} while (0)
#define ql_tail_insert(a_head, a_elm, a_field) do { \
if (ql_first(a_head) != NULL) { \
qr_before_insert(ql_first(a_head), (a_elm), a_field); \
} \
ql_first(a_head) = qr_next((a_elm), a_field); \
} while (0)
#define ql_remove(a_head, a_elm, a_field) do { \
if (ql_first(a_head) == (a_elm)) { \
ql_first(a_head) = qr_next(ql_first(a_head), a_field); \
} \
if (ql_first(a_head) != (a_elm)) { \
qr_remove((a_elm), a_field); \
} else { \
ql_first(a_head) = NULL; \
} \
} while (0)
#define ql_head_remove(a_head, a_type, a_field) do { \
a_type *t = ql_first(a_head); \
ql_remove((a_head), t, a_field); \
} while (0)
#define ql_tail_remove(a_head, a_type, a_field) do { \
a_type *t = ql_last(a_head, a_field); \
ql_remove((a_head), t, a_field); \
} while (0)
#define ql_foreach(a_var, a_head, a_field) \
qr_foreach((a_var), ql_first(a_head), a_field)
#define ql_reverse_foreach(a_var, a_head, a_field) \
qr_reverse_foreach((a_var), ql_first(a_head), a_field)
| 2,369 | 27.902439 | 65 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/nstime.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
typedef struct nstime_s nstime_t;
/* Maximum supported number of seconds (~584 years). */
#define NSTIME_SEC_MAX KQU(18446744072)
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
struct nstime_s {
uint64_t ns;
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
void nstime_init(nstime_t *time, uint64_t ns);
void nstime_init2(nstime_t *time, uint64_t sec, uint64_t nsec);
uint64_t nstime_ns(const nstime_t *time);
uint64_t nstime_sec(const nstime_t *time);
uint64_t nstime_nsec(const nstime_t *time);
void nstime_copy(nstime_t *time, const nstime_t *source);
int nstime_compare(const nstime_t *a, const nstime_t *b);
void nstime_add(nstime_t *time, const nstime_t *addend);
void nstime_subtract(nstime_t *time, const nstime_t *subtrahend);
void nstime_imultiply(nstime_t *time, uint64_t multiplier);
void nstime_idivide(nstime_t *time, uint64_t divisor);
uint64_t nstime_divide(const nstime_t *time, const nstime_t *divisor);
#ifdef JEMALLOC_JET
typedef bool (nstime_monotonic_t)(void);
extern nstime_monotonic_t *nstime_monotonic;
typedef bool (nstime_update_t)(nstime_t *);
extern nstime_update_t *nstime_update;
#else
bool nstime_monotonic(void);
bool nstime_update(nstime_t *time);
#endif
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 1,738 | 34.489796 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/witness.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
typedef struct witness_s witness_t;
typedef unsigned witness_rank_t;
typedef ql_head(witness_t) witness_list_t;
typedef int witness_comp_t (const witness_t *, const witness_t *);
/*
* Lock ranks. Witnesses with rank WITNESS_RANK_OMIT are completely ignored by
* the witness machinery.
*/
#define WITNESS_RANK_OMIT 0U
#define WITNESS_RANK_INIT 1U
#define WITNESS_RANK_CTL 1U
#define WITNESS_RANK_ARENAS 2U
#define WITNESS_RANK_PROF_DUMP 3U
#define WITNESS_RANK_PROF_BT2GCTX 4U
#define WITNESS_RANK_PROF_TDATAS 5U
#define WITNESS_RANK_PROF_TDATA 6U
#define WITNESS_RANK_PROF_GCTX 7U
#define WITNESS_RANK_ARENA 8U
#define WITNESS_RANK_ARENA_CHUNKS 9U
#define WITNESS_RANK_ARENA_NODE_CACHE 10
#define WITNESS_RANK_BASE 11U
#define WITNESS_RANK_LEAF 0xffffffffU
#define WITNESS_RANK_ARENA_BIN WITNESS_RANK_LEAF
#define WITNESS_RANK_ARENA_HUGE WITNESS_RANK_LEAF
#define WITNESS_RANK_DSS WITNESS_RANK_LEAF
#define WITNESS_RANK_PROF_ACTIVE WITNESS_RANK_LEAF
#define WITNESS_RANK_PROF_DUMP_SEQ WITNESS_RANK_LEAF
#define WITNESS_RANK_PROF_GDUMP WITNESS_RANK_LEAF
#define WITNESS_RANK_PROF_NEXT_THR_UID WITNESS_RANK_LEAF
#define WITNESS_RANK_PROF_THREAD_ACTIVE_INIT WITNESS_RANK_LEAF
#define WITNESS_INITIALIZER(rank) {"initializer", rank, NULL, {NULL, NULL}}
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
struct witness_s {
/* Name, used for printing lock order reversal messages. */
const char *name;
/*
* Witness rank, where 0 is lowest and UINT_MAX is highest. Witnesses
* must be acquired in order of increasing rank.
*/
witness_rank_t rank;
/*
* If two witnesses are of equal rank and they have the samp comp
* function pointer, it is called as a last attempt to differentiate
* between witnesses of equal rank.
*/
witness_comp_t *comp;
/* Linkage for thread's currently owned locks. */
ql_elm(witness_t) link;
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
void witness_init(witness_t *witness, const char *name, witness_rank_t rank,
witness_comp_t *comp);
#ifdef JEMALLOC_JET
typedef void (witness_lock_error_t)(const witness_list_t *, const witness_t *);
extern witness_lock_error_t *witness_lock_error;
#else
void witness_lock_error(const witness_list_t *witnesses,
const witness_t *witness);
#endif
#ifdef JEMALLOC_JET
typedef void (witness_owner_error_t)(const witness_t *);
extern witness_owner_error_t *witness_owner_error;
#else
void witness_owner_error(const witness_t *witness);
#endif
#ifdef JEMALLOC_JET
typedef void (witness_not_owner_error_t)(const witness_t *);
extern witness_not_owner_error_t *witness_not_owner_error;
#else
void witness_not_owner_error(const witness_t *witness);
#endif
#ifdef JEMALLOC_JET
typedef void (witness_lockless_error_t)(const witness_list_t *);
extern witness_lockless_error_t *witness_lockless_error;
#else
void witness_lockless_error(const witness_list_t *witnesses);
#endif
void witnesses_cleanup(tsd_t *tsd);
void witness_fork_cleanup(tsd_t *tsd);
void witness_prefork(tsd_t *tsd);
void witness_postfork_parent(tsd_t *tsd);
void witness_postfork_child(tsd_t *tsd);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
bool witness_owner(tsd_t *tsd, const witness_t *witness);
void witness_assert_owner(tsdn_t *tsdn, const witness_t *witness);
void witness_assert_not_owner(tsdn_t *tsdn, const witness_t *witness);
void witness_assert_lockless(tsdn_t *tsdn);
void witness_lock(tsdn_t *tsdn, witness_t *witness);
void witness_unlock(tsdn_t *tsdn, witness_t *witness);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_MUTEX_C_))
JEMALLOC_INLINE bool
witness_owner(tsd_t *tsd, const witness_t *witness)
{
witness_list_t *witnesses;
witness_t *w;
witnesses = tsd_witnessesp_get(tsd);
ql_foreach(w, witnesses, link) {
if (w == witness)
return (true);
}
return (false);
}
JEMALLOC_INLINE void
witness_assert_owner(tsdn_t *tsdn, const witness_t *witness)
{
tsd_t *tsd;
if (!config_debug)
return;
if (tsdn_null(tsdn))
return;
tsd = tsdn_tsd(tsdn);
if (witness->rank == WITNESS_RANK_OMIT)
return;
if (witness_owner(tsd, witness))
return;
witness_owner_error(witness);
}
JEMALLOC_INLINE void
witness_assert_not_owner(tsdn_t *tsdn, const witness_t *witness)
{
tsd_t *tsd;
witness_list_t *witnesses;
witness_t *w;
if (!config_debug)
return;
if (tsdn_null(tsdn))
return;
tsd = tsdn_tsd(tsdn);
if (witness->rank == WITNESS_RANK_OMIT)
return;
witnesses = tsd_witnessesp_get(tsd);
ql_foreach(w, witnesses, link) {
if (w == witness)
witness_not_owner_error(witness);
}
}
JEMALLOC_INLINE void
witness_assert_lockless(tsdn_t *tsdn)
{
tsd_t *tsd;
witness_list_t *witnesses;
witness_t *w;
if (!config_debug)
return;
if (tsdn_null(tsdn))
return;
tsd = tsdn_tsd(tsdn);
witnesses = tsd_witnessesp_get(tsd);
w = ql_last(witnesses, link);
if (w != NULL)
witness_lockless_error(witnesses);
}
JEMALLOC_INLINE void
witness_lock(tsdn_t *tsdn, witness_t *witness)
{
tsd_t *tsd;
witness_list_t *witnesses;
witness_t *w;
if (!config_debug)
return;
if (tsdn_null(tsdn))
return;
tsd = tsdn_tsd(tsdn);
if (witness->rank == WITNESS_RANK_OMIT)
return;
witness_assert_not_owner(tsdn, witness);
witnesses = tsd_witnessesp_get(tsd);
w = ql_last(witnesses, link);
if (w == NULL) {
/* No other locks; do nothing. */
} else if (tsd_witness_fork_get(tsd) && w->rank <= witness->rank) {
/* Forking, and relaxed ranking satisfied. */
} else if (w->rank > witness->rank) {
/* Not forking, rank order reversal. */
witness_lock_error(witnesses, witness);
} else if (w->rank == witness->rank && (w->comp == NULL || w->comp !=
witness->comp || w->comp(w, witness) > 0)) {
/*
* Missing/incompatible comparison function, or comparison
* function indicates rank order reversal.
*/
witness_lock_error(witnesses, witness);
}
ql_elm_new(witness, link);
ql_tail_insert(witnesses, witness, link);
}
JEMALLOC_INLINE void
witness_unlock(tsdn_t *tsdn, witness_t *witness)
{
tsd_t *tsd;
witness_list_t *witnesses;
if (!config_debug)
return;
if (tsdn_null(tsdn))
return;
tsd = tsdn_tsd(tsdn);
if (witness->rank == WITNESS_RANK_OMIT)
return;
/*
* Check whether owner before removal, rather than relying on
* witness_assert_owner() to abort, so that unit tests can test this
* function's failure mode without causing undefined behavior.
*/
if (witness_owner(tsd, witness)) {
witnesses = tsd_witnessesp_get(tsd);
ql_remove(witnesses, witness, link);
} else
witness_assert_owner(tsdn, witness);
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 7,051 | 25.411985 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/qr.h
|
/* Ring definitions. */
#define qr(a_type) \
struct { \
a_type *qre_next; \
a_type *qre_prev; \
}
/* Ring functions. */
#define qr_new(a_qr, a_field) do { \
(a_qr)->a_field.qre_next = (a_qr); \
(a_qr)->a_field.qre_prev = (a_qr); \
} while (0)
#define qr_next(a_qr, a_field) ((a_qr)->a_field.qre_next)
#define qr_prev(a_qr, a_field) ((a_qr)->a_field.qre_prev)
#define qr_before_insert(a_qrelm, a_qr, a_field) do { \
(a_qr)->a_field.qre_prev = (a_qrelm)->a_field.qre_prev; \
(a_qr)->a_field.qre_next = (a_qrelm); \
(a_qr)->a_field.qre_prev->a_field.qre_next = (a_qr); \
(a_qrelm)->a_field.qre_prev = (a_qr); \
} while (0)
#define qr_after_insert(a_qrelm, a_qr, a_field) \
do \
{ \
(a_qr)->a_field.qre_next = (a_qrelm)->a_field.qre_next; \
(a_qr)->a_field.qre_prev = (a_qrelm); \
(a_qr)->a_field.qre_next->a_field.qre_prev = (a_qr); \
(a_qrelm)->a_field.qre_next = (a_qr); \
} while (0)
#define qr_meld(a_qr_a, a_qr_b, a_field) do { \
void *t; \
(a_qr_a)->a_field.qre_prev->a_field.qre_next = (a_qr_b); \
(a_qr_b)->a_field.qre_prev->a_field.qre_next = (a_qr_a); \
t = (a_qr_a)->a_field.qre_prev; \
(a_qr_a)->a_field.qre_prev = (a_qr_b)->a_field.qre_prev; \
(a_qr_b)->a_field.qre_prev = t; \
} while (0)
/*
* qr_meld() and qr_split() are functionally equivalent, so there's no need to
* have two copies of the code.
*/
#define qr_split(a_qr_a, a_qr_b, a_field) \
qr_meld((a_qr_a), (a_qr_b), a_field)
#define qr_remove(a_qr, a_field) do { \
(a_qr)->a_field.qre_prev->a_field.qre_next \
= (a_qr)->a_field.qre_next; \
(a_qr)->a_field.qre_next->a_field.qre_prev \
= (a_qr)->a_field.qre_prev; \
(a_qr)->a_field.qre_next = (a_qr); \
(a_qr)->a_field.qre_prev = (a_qr); \
} while (0)
#define qr_foreach(var, a_qr, a_field) \
for ((var) = (a_qr); \
(var) != NULL; \
(var) = (((var)->a_field.qre_next != (a_qr)) \
? (var)->a_field.qre_next : NULL))
#define qr_reverse_foreach(var, a_qr, a_field) \
for ((var) = ((a_qr) != NULL) ? qr_prev(a_qr, a_field) : NULL; \
(var) != NULL; \
(var) = (((var) != (a_qr)) \
? (var)->a_field.qre_prev : NULL))
| 2,259 | 31.285714 | 78 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/public_namespace.sh
|
#!/bin/sh
for nm in `cat $1` ; do
n=`echo ${nm} |tr ':' ' ' |awk '{print $1}'`
echo "#define je_${n} JEMALLOC_N(${n})"
done
| 129 | 17.571429 | 46 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/spin.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
typedef struct spin_s spin_t;
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
struct spin_s {
unsigned iteration;
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
void spin_init(spin_t *spin);
void spin_adaptive(spin_t *spin);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_SPIN_C_))
JEMALLOC_INLINE void
spin_init(spin_t *spin)
{
spin->iteration = 0;
}
JEMALLOC_INLINE void
spin_adaptive(spin_t *spin)
{
volatile uint64_t i;
for (i = 0; i < (KQU(1) << spin->iteration); i++)
CPU_SPINWAIT;
if (spin->iteration < 63)
spin->iteration++;
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 1,154 | 21.211538 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/smoothstep.h
|
/*
* This file was generated by the following command:
* sh smoothstep.sh smoother 200 24 3 15
*/
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
/*
* This header defines a precomputed table based on the smoothstep family of
* sigmoidal curves (https://en.wikipedia.org/wiki/Smoothstep) that grow from 0
* to 1 in 0 <= x <= 1. The table is stored as integer fixed point values so
* that floating point math can be avoided.
*
* 3 2
* smoothstep(x) = -2x + 3x
*
* 5 4 3
* smootherstep(x) = 6x - 15x + 10x
*
* 7 6 5 4
* smootheststep(x) = -20x + 70x - 84x + 35x
*/
#define SMOOTHSTEP_VARIANT "smoother"
#define SMOOTHSTEP_NSTEPS 200
#define SMOOTHSTEP_BFP 24
#define SMOOTHSTEP \
/* STEP(step, h, x, y) */ \
STEP( 1, UINT64_C(0x0000000000000014), 0.005, 0.000001240643750) \
STEP( 2, UINT64_C(0x00000000000000a5), 0.010, 0.000009850600000) \
STEP( 3, UINT64_C(0x0000000000000229), 0.015, 0.000032995181250) \
STEP( 4, UINT64_C(0x0000000000000516), 0.020, 0.000077619200000) \
STEP( 5, UINT64_C(0x00000000000009dc), 0.025, 0.000150449218750) \
STEP( 6, UINT64_C(0x00000000000010e8), 0.030, 0.000257995800000) \
STEP( 7, UINT64_C(0x0000000000001aa4), 0.035, 0.000406555756250) \
STEP( 8, UINT64_C(0x0000000000002777), 0.040, 0.000602214400000) \
STEP( 9, UINT64_C(0x00000000000037c2), 0.045, 0.000850847793750) \
STEP( 10, UINT64_C(0x0000000000004be6), 0.050, 0.001158125000000) \
STEP( 11, UINT64_C(0x000000000000643c), 0.055, 0.001529510331250) \
STEP( 12, UINT64_C(0x000000000000811f), 0.060, 0.001970265600000) \
STEP( 13, UINT64_C(0x000000000000a2e2), 0.065, 0.002485452368750) \
STEP( 14, UINT64_C(0x000000000000c9d8), 0.070, 0.003079934200000) \
STEP( 15, UINT64_C(0x000000000000f64f), 0.075, 0.003758378906250) \
STEP( 16, UINT64_C(0x0000000000012891), 0.080, 0.004525260800000) \
STEP( 17, UINT64_C(0x00000000000160e7), 0.085, 0.005384862943750) \
STEP( 18, UINT64_C(0x0000000000019f95), 0.090, 0.006341279400000) \
STEP( 19, UINT64_C(0x000000000001e4dc), 0.095, 0.007398417481250) \
STEP( 20, UINT64_C(0x00000000000230fc), 0.100, 0.008560000000000) \
STEP( 21, UINT64_C(0x0000000000028430), 0.105, 0.009829567518750) \
STEP( 22, UINT64_C(0x000000000002deb0), 0.110, 0.011210480600000) \
STEP( 23, UINT64_C(0x00000000000340b1), 0.115, 0.012705922056250) \
STEP( 24, UINT64_C(0x000000000003aa67), 0.120, 0.014318899200000) \
STEP( 25, UINT64_C(0x0000000000041c00), 0.125, 0.016052246093750) \
STEP( 26, UINT64_C(0x00000000000495a8), 0.130, 0.017908625800000) \
STEP( 27, UINT64_C(0x000000000005178b), 0.135, 0.019890532631250) \
STEP( 28, UINT64_C(0x000000000005a1cf), 0.140, 0.022000294400000) \
STEP( 29, UINT64_C(0x0000000000063498), 0.145, 0.024240074668750) \
STEP( 30, UINT64_C(0x000000000006d009), 0.150, 0.026611875000000) \
STEP( 31, UINT64_C(0x000000000007743f), 0.155, 0.029117537206250) \
STEP( 32, UINT64_C(0x0000000000082157), 0.160, 0.031758745600000) \
STEP( 33, UINT64_C(0x000000000008d76b), 0.165, 0.034537029243750) \
STEP( 34, UINT64_C(0x0000000000099691), 0.170, 0.037453764200000) \
STEP( 35, UINT64_C(0x00000000000a5edf), 0.175, 0.040510175781250) \
STEP( 36, UINT64_C(0x00000000000b3067), 0.180, 0.043707340800000) \
STEP( 37, UINT64_C(0x00000000000c0b38), 0.185, 0.047046189818750) \
STEP( 38, UINT64_C(0x00000000000cef5e), 0.190, 0.050527509400000) \
STEP( 39, UINT64_C(0x00000000000ddce6), 0.195, 0.054151944356250) \
STEP( 40, UINT64_C(0x00000000000ed3d8), 0.200, 0.057920000000000) \
STEP( 41, UINT64_C(0x00000000000fd439), 0.205, 0.061832044393750) \
STEP( 42, UINT64_C(0x000000000010de0e), 0.210, 0.065888310600000) \
STEP( 43, UINT64_C(0x000000000011f158), 0.215, 0.070088898931250) \
STEP( 44, UINT64_C(0x0000000000130e17), 0.220, 0.074433779200000) \
STEP( 45, UINT64_C(0x0000000000143448), 0.225, 0.078922792968750) \
STEP( 46, UINT64_C(0x00000000001563e7), 0.230, 0.083555655800000) \
STEP( 47, UINT64_C(0x0000000000169cec), 0.235, 0.088331959506250) \
STEP( 48, UINT64_C(0x000000000017df4f), 0.240, 0.093251174400000) \
STEP( 49, UINT64_C(0x0000000000192b04), 0.245, 0.098312651543750) \
STEP( 50, UINT64_C(0x00000000001a8000), 0.250, 0.103515625000000) \
STEP( 51, UINT64_C(0x00000000001bde32), 0.255, 0.108859214081250) \
STEP( 52, UINT64_C(0x00000000001d458b), 0.260, 0.114342425600000) \
STEP( 53, UINT64_C(0x00000000001eb5f8), 0.265, 0.119964156118750) \
STEP( 54, UINT64_C(0x0000000000202f65), 0.270, 0.125723194200000) \
STEP( 55, UINT64_C(0x000000000021b1bb), 0.275, 0.131618222656250) \
STEP( 56, UINT64_C(0x0000000000233ce3), 0.280, 0.137647820800000) \
STEP( 57, UINT64_C(0x000000000024d0c3), 0.285, 0.143810466693750) \
STEP( 58, UINT64_C(0x0000000000266d40), 0.290, 0.150104539400000) \
STEP( 59, UINT64_C(0x000000000028123d), 0.295, 0.156528321231250) \
STEP( 60, UINT64_C(0x000000000029bf9c), 0.300, 0.163080000000000) \
STEP( 61, UINT64_C(0x00000000002b753d), 0.305, 0.169757671268750) \
STEP( 62, UINT64_C(0x00000000002d32fe), 0.310, 0.176559340600000) \
STEP( 63, UINT64_C(0x00000000002ef8bc), 0.315, 0.183482925806250) \
STEP( 64, UINT64_C(0x000000000030c654), 0.320, 0.190526259200000) \
STEP( 65, UINT64_C(0x0000000000329b9f), 0.325, 0.197687089843750) \
STEP( 66, UINT64_C(0x0000000000347875), 0.330, 0.204963085800000) \
STEP( 67, UINT64_C(0x0000000000365cb0), 0.335, 0.212351836381250) \
STEP( 68, UINT64_C(0x0000000000384825), 0.340, 0.219850854400000) \
STEP( 69, UINT64_C(0x00000000003a3aa8), 0.345, 0.227457578418750) \
STEP( 70, UINT64_C(0x00000000003c340f), 0.350, 0.235169375000000) \
STEP( 71, UINT64_C(0x00000000003e342b), 0.355, 0.242983540956250) \
STEP( 72, UINT64_C(0x0000000000403ace), 0.360, 0.250897305600000) \
STEP( 73, UINT64_C(0x00000000004247c8), 0.365, 0.258907832993750) \
STEP( 74, UINT64_C(0x0000000000445ae9), 0.370, 0.267012224200000) \
STEP( 75, UINT64_C(0x0000000000467400), 0.375, 0.275207519531250) \
STEP( 76, UINT64_C(0x00000000004892d8), 0.380, 0.283490700800000) \
STEP( 77, UINT64_C(0x00000000004ab740), 0.385, 0.291858693568750) \
STEP( 78, UINT64_C(0x00000000004ce102), 0.390, 0.300308369400000) \
STEP( 79, UINT64_C(0x00000000004f0fe9), 0.395, 0.308836548106250) \
STEP( 80, UINT64_C(0x00000000005143bf), 0.400, 0.317440000000000) \
STEP( 81, UINT64_C(0x0000000000537c4d), 0.405, 0.326115448143750) \
STEP( 82, UINT64_C(0x000000000055b95b), 0.410, 0.334859570600000) \
STEP( 83, UINT64_C(0x000000000057fab1), 0.415, 0.343669002681250) \
STEP( 84, UINT64_C(0x00000000005a4015), 0.420, 0.352540339200000) \
STEP( 85, UINT64_C(0x00000000005c894e), 0.425, 0.361470136718750) \
STEP( 86, UINT64_C(0x00000000005ed622), 0.430, 0.370454915800000) \
STEP( 87, UINT64_C(0x0000000000612655), 0.435, 0.379491163256250) \
STEP( 88, UINT64_C(0x00000000006379ac), 0.440, 0.388575334400000) \
STEP( 89, UINT64_C(0x000000000065cfeb), 0.445, 0.397703855293750) \
STEP( 90, UINT64_C(0x00000000006828d6), 0.450, 0.406873125000000) \
STEP( 91, UINT64_C(0x00000000006a842f), 0.455, 0.416079517831250) \
STEP( 92, UINT64_C(0x00000000006ce1bb), 0.460, 0.425319385600000) \
STEP( 93, UINT64_C(0x00000000006f413a), 0.465, 0.434589059868750) \
STEP( 94, UINT64_C(0x000000000071a270), 0.470, 0.443884854200000) \
STEP( 95, UINT64_C(0x000000000074051d), 0.475, 0.453203066406250) \
STEP( 96, UINT64_C(0x0000000000766905), 0.480, 0.462539980800000) \
STEP( 97, UINT64_C(0x000000000078cde7), 0.485, 0.471891870443750) \
STEP( 98, UINT64_C(0x00000000007b3387), 0.490, 0.481254999400000) \
STEP( 99, UINT64_C(0x00000000007d99a4), 0.495, 0.490625624981250) \
STEP( 100, UINT64_C(0x0000000000800000), 0.500, 0.500000000000000) \
STEP( 101, UINT64_C(0x000000000082665b), 0.505, 0.509374375018750) \
STEP( 102, UINT64_C(0x000000000084cc78), 0.510, 0.518745000600000) \
STEP( 103, UINT64_C(0x0000000000873218), 0.515, 0.528108129556250) \
STEP( 104, UINT64_C(0x00000000008996fa), 0.520, 0.537460019200000) \
STEP( 105, UINT64_C(0x00000000008bfae2), 0.525, 0.546796933593750) \
STEP( 106, UINT64_C(0x00000000008e5d8f), 0.530, 0.556115145800000) \
STEP( 107, UINT64_C(0x000000000090bec5), 0.535, 0.565410940131250) \
STEP( 108, UINT64_C(0x0000000000931e44), 0.540, 0.574680614400000) \
STEP( 109, UINT64_C(0x0000000000957bd0), 0.545, 0.583920482168750) \
STEP( 110, UINT64_C(0x000000000097d729), 0.550, 0.593126875000000) \
STEP( 111, UINT64_C(0x00000000009a3014), 0.555, 0.602296144706250) \
STEP( 112, UINT64_C(0x00000000009c8653), 0.560, 0.611424665600000) \
STEP( 113, UINT64_C(0x00000000009ed9aa), 0.565, 0.620508836743750) \
STEP( 114, UINT64_C(0x0000000000a129dd), 0.570, 0.629545084200000) \
STEP( 115, UINT64_C(0x0000000000a376b1), 0.575, 0.638529863281250) \
STEP( 116, UINT64_C(0x0000000000a5bfea), 0.580, 0.647459660800000) \
STEP( 117, UINT64_C(0x0000000000a8054e), 0.585, 0.656330997318750) \
STEP( 118, UINT64_C(0x0000000000aa46a4), 0.590, 0.665140429400000) \
STEP( 119, UINT64_C(0x0000000000ac83b2), 0.595, 0.673884551856250) \
STEP( 120, UINT64_C(0x0000000000aebc40), 0.600, 0.682560000000000) \
STEP( 121, UINT64_C(0x0000000000b0f016), 0.605, 0.691163451893750) \
STEP( 122, UINT64_C(0x0000000000b31efd), 0.610, 0.699691630600000) \
STEP( 123, UINT64_C(0x0000000000b548bf), 0.615, 0.708141306431250) \
STEP( 124, UINT64_C(0x0000000000b76d27), 0.620, 0.716509299200000) \
STEP( 125, UINT64_C(0x0000000000b98c00), 0.625, 0.724792480468750) \
STEP( 126, UINT64_C(0x0000000000bba516), 0.630, 0.732987775800000) \
STEP( 127, UINT64_C(0x0000000000bdb837), 0.635, 0.741092167006250) \
STEP( 128, UINT64_C(0x0000000000bfc531), 0.640, 0.749102694400000) \
STEP( 129, UINT64_C(0x0000000000c1cbd4), 0.645, 0.757016459043750) \
STEP( 130, UINT64_C(0x0000000000c3cbf0), 0.650, 0.764830625000000) \
STEP( 131, UINT64_C(0x0000000000c5c557), 0.655, 0.772542421581250) \
STEP( 132, UINT64_C(0x0000000000c7b7da), 0.660, 0.780149145600000) \
STEP( 133, UINT64_C(0x0000000000c9a34f), 0.665, 0.787648163618750) \
STEP( 134, UINT64_C(0x0000000000cb878a), 0.670, 0.795036914200000) \
STEP( 135, UINT64_C(0x0000000000cd6460), 0.675, 0.802312910156250) \
STEP( 136, UINT64_C(0x0000000000cf39ab), 0.680, 0.809473740800000) \
STEP( 137, UINT64_C(0x0000000000d10743), 0.685, 0.816517074193750) \
STEP( 138, UINT64_C(0x0000000000d2cd01), 0.690, 0.823440659400000) \
STEP( 139, UINT64_C(0x0000000000d48ac2), 0.695, 0.830242328731250) \
STEP( 140, UINT64_C(0x0000000000d64063), 0.700, 0.836920000000000) \
STEP( 141, UINT64_C(0x0000000000d7edc2), 0.705, 0.843471678768750) \
STEP( 142, UINT64_C(0x0000000000d992bf), 0.710, 0.849895460600000) \
STEP( 143, UINT64_C(0x0000000000db2f3c), 0.715, 0.856189533306250) \
STEP( 144, UINT64_C(0x0000000000dcc31c), 0.720, 0.862352179200000) \
STEP( 145, UINT64_C(0x0000000000de4e44), 0.725, 0.868381777343750) \
STEP( 146, UINT64_C(0x0000000000dfd09a), 0.730, 0.874276805800000) \
STEP( 147, UINT64_C(0x0000000000e14a07), 0.735, 0.880035843881250) \
STEP( 148, UINT64_C(0x0000000000e2ba74), 0.740, 0.885657574400000) \
STEP( 149, UINT64_C(0x0000000000e421cd), 0.745, 0.891140785918750) \
STEP( 150, UINT64_C(0x0000000000e58000), 0.750, 0.896484375000000) \
STEP( 151, UINT64_C(0x0000000000e6d4fb), 0.755, 0.901687348456250) \
STEP( 152, UINT64_C(0x0000000000e820b0), 0.760, 0.906748825600000) \
STEP( 153, UINT64_C(0x0000000000e96313), 0.765, 0.911668040493750) \
STEP( 154, UINT64_C(0x0000000000ea9c18), 0.770, 0.916444344200000) \
STEP( 155, UINT64_C(0x0000000000ebcbb7), 0.775, 0.921077207031250) \
STEP( 156, UINT64_C(0x0000000000ecf1e8), 0.780, 0.925566220800000) \
STEP( 157, UINT64_C(0x0000000000ee0ea7), 0.785, 0.929911101068750) \
STEP( 158, UINT64_C(0x0000000000ef21f1), 0.790, 0.934111689400000) \
STEP( 159, UINT64_C(0x0000000000f02bc6), 0.795, 0.938167955606250) \
STEP( 160, UINT64_C(0x0000000000f12c27), 0.800, 0.942080000000000) \
STEP( 161, UINT64_C(0x0000000000f22319), 0.805, 0.945848055643750) \
STEP( 162, UINT64_C(0x0000000000f310a1), 0.810, 0.949472490600000) \
STEP( 163, UINT64_C(0x0000000000f3f4c7), 0.815, 0.952953810181250) \
STEP( 164, UINT64_C(0x0000000000f4cf98), 0.820, 0.956292659200000) \
STEP( 165, UINT64_C(0x0000000000f5a120), 0.825, 0.959489824218750) \
STEP( 166, UINT64_C(0x0000000000f6696e), 0.830, 0.962546235800000) \
STEP( 167, UINT64_C(0x0000000000f72894), 0.835, 0.965462970756250) \
STEP( 168, UINT64_C(0x0000000000f7dea8), 0.840, 0.968241254400000) \
STEP( 169, UINT64_C(0x0000000000f88bc0), 0.845, 0.970882462793750) \
STEP( 170, UINT64_C(0x0000000000f92ff6), 0.850, 0.973388125000000) \
STEP( 171, UINT64_C(0x0000000000f9cb67), 0.855, 0.975759925331250) \
STEP( 172, UINT64_C(0x0000000000fa5e30), 0.860, 0.977999705600000) \
STEP( 173, UINT64_C(0x0000000000fae874), 0.865, 0.980109467368750) \
STEP( 174, UINT64_C(0x0000000000fb6a57), 0.870, 0.982091374200000) \
STEP( 175, UINT64_C(0x0000000000fbe400), 0.875, 0.983947753906250) \
STEP( 176, UINT64_C(0x0000000000fc5598), 0.880, 0.985681100800000) \
STEP( 177, UINT64_C(0x0000000000fcbf4e), 0.885, 0.987294077943750) \
STEP( 178, UINT64_C(0x0000000000fd214f), 0.890, 0.988789519400000) \
STEP( 179, UINT64_C(0x0000000000fd7bcf), 0.895, 0.990170432481250) \
STEP( 180, UINT64_C(0x0000000000fdcf03), 0.900, 0.991440000000000) \
STEP( 181, UINT64_C(0x0000000000fe1b23), 0.905, 0.992601582518750) \
STEP( 182, UINT64_C(0x0000000000fe606a), 0.910, 0.993658720600000) \
STEP( 183, UINT64_C(0x0000000000fe9f18), 0.915, 0.994615137056250) \
STEP( 184, UINT64_C(0x0000000000fed76e), 0.920, 0.995474739200000) \
STEP( 185, UINT64_C(0x0000000000ff09b0), 0.925, 0.996241621093750) \
STEP( 186, UINT64_C(0x0000000000ff3627), 0.930, 0.996920065800000) \
STEP( 187, UINT64_C(0x0000000000ff5d1d), 0.935, 0.997514547631250) \
STEP( 188, UINT64_C(0x0000000000ff7ee0), 0.940, 0.998029734400000) \
STEP( 189, UINT64_C(0x0000000000ff9bc3), 0.945, 0.998470489668750) \
STEP( 190, UINT64_C(0x0000000000ffb419), 0.950, 0.998841875000000) \
STEP( 191, UINT64_C(0x0000000000ffc83d), 0.955, 0.999149152206250) \
STEP( 192, UINT64_C(0x0000000000ffd888), 0.960, 0.999397785600000) \
STEP( 193, UINT64_C(0x0000000000ffe55b), 0.965, 0.999593444243750) \
STEP( 194, UINT64_C(0x0000000000ffef17), 0.970, 0.999742004200000) \
STEP( 195, UINT64_C(0x0000000000fff623), 0.975, 0.999849550781250) \
STEP( 196, UINT64_C(0x0000000000fffae9), 0.980, 0.999922380800000) \
STEP( 197, UINT64_C(0x0000000000fffdd6), 0.985, 0.999967004818750) \
STEP( 198, UINT64_C(0x0000000000ffff5a), 0.990, 0.999990149400000) \
STEP( 199, UINT64_C(0x0000000000ffffeb), 0.995, 0.999998759356250) \
STEP( 200, UINT64_C(0x0000000001000000), 1.000, 1.000000000000000) \
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 16,061 | 64.02834 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/chunk_mmap.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
void *chunk_alloc_mmap(void *new_addr, size_t size, size_t alignment,
bool *zero, bool *commit);
bool chunk_dalloc_mmap(void *chunk, size_t size);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 789 | 34.909091 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/private_unnamespace.sh
|
#!/bin/sh
for symbol in `cat $1` ; do
echo "#undef ${symbol}"
done
| 70 | 10.833333 | 27 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/chunk.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
/*
* Size and alignment of memory chunks that are allocated by the OS's virtual
* memory system.
*/
#define LG_CHUNK_DEFAULT 21
/* Return the chunk address for allocation address a. */
#define CHUNK_ADDR2BASE(a) \
((void *)((uintptr_t)(a) & ~chunksize_mask))
/* Return the chunk offset of address a. */
#define CHUNK_ADDR2OFFSET(a) \
((size_t)((uintptr_t)(a) & chunksize_mask))
/* Return the smallest chunk multiple that is >= s. */
#define CHUNK_CEILING(s) \
(((s) + chunksize_mask) & ~chunksize_mask)
#define CHUNK_HOOKS_INITIALIZER { \
NULL, \
NULL, \
NULL, \
NULL, \
NULL, \
NULL, \
NULL \
}
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
extern size_t opt_lg_chunk;
extern const char *opt_dss;
extern rtree_t chunks_rtree;
extern size_t chunksize;
extern size_t chunksize_mask; /* (chunksize - 1). */
extern size_t chunk_npages;
extern const chunk_hooks_t chunk_hooks_default;
chunk_hooks_t chunk_hooks_get(tsdn_t *tsdn, arena_t *arena);
chunk_hooks_t chunk_hooks_set(tsdn_t *tsdn, arena_t *arena,
const chunk_hooks_t *chunk_hooks);
bool chunk_register(tsdn_t *tsdn, const void *chunk,
const extent_node_t *node);
void chunk_deregister(const void *chunk, const extent_node_t *node);
void *chunk_alloc_base(size_t size);
void *chunk_alloc_cache(tsdn_t *tsdn, arena_t *arena,
chunk_hooks_t *chunk_hooks, void *new_addr, size_t size, size_t alignment,
size_t *sn, bool *zero, bool *commit, bool dalloc_node);
void *chunk_alloc_wrapper(tsdn_t *tsdn, arena_t *arena,
chunk_hooks_t *chunk_hooks, void *new_addr, size_t size, size_t alignment,
size_t *sn, bool *zero, bool *commit);
void chunk_dalloc_cache(tsdn_t *tsdn, arena_t *arena,
chunk_hooks_t *chunk_hooks, void *chunk, size_t size, size_t sn,
bool committed);
void chunk_dalloc_wrapper(tsdn_t *tsdn, arena_t *arena,
chunk_hooks_t *chunk_hooks, void *chunk, size_t size, size_t sn,
bool zeroed, bool committed);
bool chunk_purge_wrapper(tsdn_t *tsdn, arena_t *arena,
chunk_hooks_t *chunk_hooks, void *chunk, size_t size, size_t offset,
size_t length);
bool chunk_boot(void);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
extent_node_t *chunk_lookup(const void *chunk, bool dependent);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_CHUNK_C_))
JEMALLOC_INLINE extent_node_t *
chunk_lookup(const void *ptr, bool dependent)
{
return (rtree_get(&chunks_rtree, (uintptr_t)ptr, dependent));
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
#include "jemalloc/internal/chunk_dss.h"
#include "jemalloc/internal/chunk_mmap.h"
| 3,196 | 31.622449 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/ckh.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
typedef struct ckh_s ckh_t;
typedef struct ckhc_s ckhc_t;
/* Typedefs to allow easy function pointer passing. */
typedef void ckh_hash_t (const void *, size_t[2]);
typedef bool ckh_keycomp_t (const void *, const void *);
/* Maintain counters used to get an idea of performance. */
/* #define CKH_COUNT */
/* Print counter values in ckh_delete() (requires CKH_COUNT). */
/* #define CKH_VERBOSE */
/*
* There are 2^LG_CKH_BUCKET_CELLS cells in each hash table bucket. Try to fit
* one bucket per L1 cache line.
*/
#define LG_CKH_BUCKET_CELLS (LG_CACHELINE - LG_SIZEOF_PTR - 1)
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
/* Hash table cell. */
struct ckhc_s {
const void *key;
const void *data;
};
struct ckh_s {
#ifdef CKH_COUNT
/* Counters used to get an idea of performance. */
uint64_t ngrows;
uint64_t nshrinks;
uint64_t nshrinkfails;
uint64_t ninserts;
uint64_t nrelocs;
#endif
/* Used for pseudo-random number generation. */
uint64_t prng_state;
/* Total number of items. */
size_t count;
/*
* Minimum and current number of hash table buckets. There are
* 2^LG_CKH_BUCKET_CELLS cells per bucket.
*/
unsigned lg_minbuckets;
unsigned lg_curbuckets;
/* Hash and comparison functions. */
ckh_hash_t *hash;
ckh_keycomp_t *keycomp;
/* Hash table with 2^lg_curbuckets buckets. */
ckhc_t *tab;
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
bool ckh_new(tsd_t *tsd, ckh_t *ckh, size_t minitems, ckh_hash_t *hash,
ckh_keycomp_t *keycomp);
void ckh_delete(tsd_t *tsd, ckh_t *ckh);
size_t ckh_count(ckh_t *ckh);
bool ckh_iter(ckh_t *ckh, size_t *tabind, void **key, void **data);
bool ckh_insert(tsd_t *tsd, ckh_t *ckh, const void *key, const void *data);
bool ckh_remove(tsd_t *tsd, ckh_t *ckh, const void *searchkey, void **key,
void **data);
bool ckh_search(ckh_t *ckh, const void *searchkey, void **key, void **data);
void ckh_string_hash(const void *key, size_t r_hash[2]);
bool ckh_string_keycomp(const void *k1, const void *k2);
void ckh_pointer_hash(const void *key, size_t r_hash[2]);
bool ckh_pointer_keycomp(const void *k1, const void *k2);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 2,648 | 29.448276 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/rb.h
|
/*-
*******************************************************************************
*
* cpp macro implementation of left-leaning 2-3 red-black trees. Parent
* pointers are not used, and color bits are stored in the least significant
* bit of right-child pointers (if RB_COMPACT is defined), thus making node
* linkage as compact as is possible for red-black trees.
*
* Usage:
*
* #include <stdint.h>
* #include <stdbool.h>
* #define NDEBUG // (Optional, see assert(3).)
* #include <assert.h>
* #define RB_COMPACT // (Optional, embed color bits in right-child pointers.)
* #include <rb.h>
* ...
*
*******************************************************************************
*/
#ifndef RB_H_
#define RB_H_
#ifdef RB_COMPACT
/* Node structure. */
#define rb_node(a_type) \
struct { \
a_type *rbn_left; \
a_type *rbn_right_red; \
}
#else
#define rb_node(a_type) \
struct { \
a_type *rbn_left; \
a_type *rbn_right; \
bool rbn_red; \
}
#endif
/* Root structure. */
#define rb_tree(a_type) \
struct { \
a_type *rbt_root; \
}
/* Left accessors. */
#define rbtn_left_get(a_type, a_field, a_node) \
((a_node)->a_field.rbn_left)
#define rbtn_left_set(a_type, a_field, a_node, a_left) do { \
(a_node)->a_field.rbn_left = a_left; \
} while (0)
#ifdef RB_COMPACT
/* Right accessors. */
#define rbtn_right_get(a_type, a_field, a_node) \
((a_type *) (((intptr_t) (a_node)->a_field.rbn_right_red) \
& ((ssize_t)-2)))
#define rbtn_right_set(a_type, a_field, a_node, a_right) do { \
(a_node)->a_field.rbn_right_red = (a_type *) (((uintptr_t) a_right) \
| (((uintptr_t) (a_node)->a_field.rbn_right_red) & ((size_t)1))); \
} while (0)
/* Color accessors. */
#define rbtn_red_get(a_type, a_field, a_node) \
((bool) (((uintptr_t) (a_node)->a_field.rbn_right_red) \
& ((size_t)1)))
#define rbtn_color_set(a_type, a_field, a_node, a_red) do { \
(a_node)->a_field.rbn_right_red = (a_type *) ((((intptr_t) \
(a_node)->a_field.rbn_right_red) & ((ssize_t)-2)) \
| ((ssize_t)a_red)); \
} while (0)
#define rbtn_red_set(a_type, a_field, a_node) do { \
(a_node)->a_field.rbn_right_red = (a_type *) (((uintptr_t) \
(a_node)->a_field.rbn_right_red) | ((size_t)1)); \
} while (0)
#define rbtn_black_set(a_type, a_field, a_node) do { \
(a_node)->a_field.rbn_right_red = (a_type *) (((intptr_t) \
(a_node)->a_field.rbn_right_red) & ((ssize_t)-2)); \
} while (0)
/* Node initializer. */
#define rbt_node_new(a_type, a_field, a_rbt, a_node) do { \
/* Bookkeeping bit cannot be used by node pointer. */ \
assert(((uintptr_t)(a_node) & 0x1) == 0); \
rbtn_left_set(a_type, a_field, (a_node), NULL); \
rbtn_right_set(a_type, a_field, (a_node), NULL); \
rbtn_red_set(a_type, a_field, (a_node)); \
} while (0)
#else
/* Right accessors. */
#define rbtn_right_get(a_type, a_field, a_node) \
((a_node)->a_field.rbn_right)
#define rbtn_right_set(a_type, a_field, a_node, a_right) do { \
(a_node)->a_field.rbn_right = a_right; \
} while (0)
/* Color accessors. */
#define rbtn_red_get(a_type, a_field, a_node) \
((a_node)->a_field.rbn_red)
#define rbtn_color_set(a_type, a_field, a_node, a_red) do { \
(a_node)->a_field.rbn_red = (a_red); \
} while (0)
#define rbtn_red_set(a_type, a_field, a_node) do { \
(a_node)->a_field.rbn_red = true; \
} while (0)
#define rbtn_black_set(a_type, a_field, a_node) do { \
(a_node)->a_field.rbn_red = false; \
} while (0)
/* Node initializer. */
#define rbt_node_new(a_type, a_field, a_rbt, a_node) do { \
rbtn_left_set(a_type, a_field, (a_node), NULL); \
rbtn_right_set(a_type, a_field, (a_node), NULL); \
rbtn_red_set(a_type, a_field, (a_node)); \
} while (0)
#endif
/* Tree initializer. */
#define rb_new(a_type, a_field, a_rbt) do { \
(a_rbt)->rbt_root = NULL; \
} while (0)
/* Internal utility macros. */
#define rbtn_first(a_type, a_field, a_rbt, a_root, r_node) do { \
(r_node) = (a_root); \
if ((r_node) != NULL) { \
for (; \
rbtn_left_get(a_type, a_field, (r_node)) != NULL; \
(r_node) = rbtn_left_get(a_type, a_field, (r_node))) { \
} \
} \
} while (0)
#define rbtn_last(a_type, a_field, a_rbt, a_root, r_node) do { \
(r_node) = (a_root); \
if ((r_node) != NULL) { \
for (; rbtn_right_get(a_type, a_field, (r_node)) != NULL; \
(r_node) = rbtn_right_get(a_type, a_field, (r_node))) { \
} \
} \
} while (0)
#define rbtn_rotate_left(a_type, a_field, a_node, r_node) do { \
(r_node) = rbtn_right_get(a_type, a_field, (a_node)); \
rbtn_right_set(a_type, a_field, (a_node), \
rbtn_left_get(a_type, a_field, (r_node))); \
rbtn_left_set(a_type, a_field, (r_node), (a_node)); \
} while (0)
#define rbtn_rotate_right(a_type, a_field, a_node, r_node) do { \
(r_node) = rbtn_left_get(a_type, a_field, (a_node)); \
rbtn_left_set(a_type, a_field, (a_node), \
rbtn_right_get(a_type, a_field, (r_node))); \
rbtn_right_set(a_type, a_field, (r_node), (a_node)); \
} while (0)
/*
* The rb_proto() macro generates function prototypes that correspond to the
* functions generated by an equivalently parameterized call to rb_gen().
*/
#define rb_proto(a_attr, a_prefix, a_rbt_type, a_type) \
a_attr void \
a_prefix##new(a_rbt_type *rbtree); \
a_attr bool \
a_prefix##empty(a_rbt_type *rbtree); \
a_attr a_type * \
a_prefix##first(a_rbt_type *rbtree); \
a_attr a_type * \
a_prefix##last(a_rbt_type *rbtree); \
a_attr a_type * \
a_prefix##next(a_rbt_type *rbtree, a_type *node); \
a_attr a_type * \
a_prefix##prev(a_rbt_type *rbtree, a_type *node); \
a_attr a_type * \
a_prefix##search(a_rbt_type *rbtree, const a_type *key); \
a_attr a_type * \
a_prefix##nsearch(a_rbt_type *rbtree, const a_type *key); \
a_attr a_type * \
a_prefix##psearch(a_rbt_type *rbtree, const a_type *key); \
a_attr void \
a_prefix##insert(a_rbt_type *rbtree, a_type *node); \
a_attr void \
a_prefix##remove(a_rbt_type *rbtree, a_type *node); \
a_attr a_type * \
a_prefix##iter(a_rbt_type *rbtree, a_type *start, a_type *(*cb)( \
a_rbt_type *, a_type *, void *), void *arg); \
a_attr a_type * \
a_prefix##reverse_iter(a_rbt_type *rbtree, a_type *start, \
a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg); \
a_attr void \
a_prefix##destroy(a_rbt_type *rbtree, void (*cb)(a_type *, void *), \
void *arg);
/*
* The rb_gen() macro generates a type-specific red-black tree implementation,
* based on the above cpp macros.
*
* Arguments:
*
* a_attr : Function attribute for generated functions (ex: static).
* a_prefix : Prefix for generated functions (ex: ex_).
* a_rb_type : Type for red-black tree data structure (ex: ex_t).
* a_type : Type for red-black tree node data structure (ex: ex_node_t).
* a_field : Name of red-black tree node linkage (ex: ex_link).
* a_cmp : Node comparison function name, with the following prototype:
* int (a_cmp *)(a_type *a_node, a_type *a_other);
* ^^^^^^
* or a_key
* Interpretation of comparison function return values:
* -1 : a_node < a_other
* 0 : a_node == a_other
* 1 : a_node > a_other
* In all cases, the a_node or a_key macro argument is the first
* argument to the comparison function, which makes it possible
* to write comparison functions that treat the first argument
* specially.
*
* Assuming the following setup:
*
* typedef struct ex_node_s ex_node_t;
* struct ex_node_s {
* rb_node(ex_node_t) ex_link;
* };
* typedef rb_tree(ex_node_t) ex_t;
* rb_gen(static, ex_, ex_t, ex_node_t, ex_link, ex_cmp)
*
* The following API is generated:
*
* static void
* ex_new(ex_t *tree);
* Description: Initialize a red-black tree structure.
* Args:
* tree: Pointer to an uninitialized red-black tree object.
*
* static bool
* ex_empty(ex_t *tree);
* Description: Determine whether tree is empty.
* Args:
* tree: Pointer to an initialized red-black tree object.
* Ret: True if tree is empty, false otherwise.
*
* static ex_node_t *
* ex_first(ex_t *tree);
* static ex_node_t *
* ex_last(ex_t *tree);
* Description: Get the first/last node in tree.
* Args:
* tree: Pointer to an initialized red-black tree object.
* Ret: First/last node in tree, or NULL if tree is empty.
*
* static ex_node_t *
* ex_next(ex_t *tree, ex_node_t *node);
* static ex_node_t *
* ex_prev(ex_t *tree, ex_node_t *node);
* Description: Get node's successor/predecessor.
* Args:
* tree: Pointer to an initialized red-black tree object.
* node: A node in tree.
* Ret: node's successor/predecessor in tree, or NULL if node is
* last/first.
*
* static ex_node_t *
* ex_search(ex_t *tree, const ex_node_t *key);
* Description: Search for node that matches key.
* Args:
* tree: Pointer to an initialized red-black tree object.
* key : Search key.
* Ret: Node in tree that matches key, or NULL if no match.
*
* static ex_node_t *
* ex_nsearch(ex_t *tree, const ex_node_t *key);
* static ex_node_t *
* ex_psearch(ex_t *tree, const ex_node_t *key);
* Description: Search for node that matches key. If no match is found,
* return what would be key's successor/predecessor, were
* key in tree.
* Args:
* tree: Pointer to an initialized red-black tree object.
* key : Search key.
* Ret: Node in tree that matches key, or if no match, hypothetical node's
* successor/predecessor (NULL if no successor/predecessor).
*
* static void
* ex_insert(ex_t *tree, ex_node_t *node);
* Description: Insert node into tree.
* Args:
* tree: Pointer to an initialized red-black tree object.
* node: Node to be inserted into tree.
*
* static void
* ex_remove(ex_t *tree, ex_node_t *node);
* Description: Remove node from tree.
* Args:
* tree: Pointer to an initialized red-black tree object.
* node: Node in tree to be removed.
*
* static ex_node_t *
* ex_iter(ex_t *tree, ex_node_t *start, ex_node_t *(*cb)(ex_t *,
* ex_node_t *, void *), void *arg);
* static ex_node_t *
* ex_reverse_iter(ex_t *tree, ex_node_t *start, ex_node *(*cb)(ex_t *,
* ex_node_t *, void *), void *arg);
* Description: Iterate forward/backward over tree, starting at node. If
* tree is modified, iteration must be immediately
* terminated by the callback function that causes the
* modification.
* Args:
* tree : Pointer to an initialized red-black tree object.
* start: Node at which to start iteration, or NULL to start at
* first/last node.
* cb : Callback function, which is called for each node during
* iteration. Under normal circumstances the callback function
* should return NULL, which causes iteration to continue. If a
* callback function returns non-NULL, iteration is immediately
* terminated and the non-NULL return value is returned by the
* iterator. This is useful for re-starting iteration after
* modifying tree.
* arg : Opaque pointer passed to cb().
* Ret: NULL if iteration completed, or the non-NULL callback return value
* that caused termination of the iteration.
*
* static void
* ex_destroy(ex_t *tree, void (*cb)(ex_node_t *, void *), void *arg);
* Description: Iterate over the tree with post-order traversal, remove
* each node, and run the callback if non-null. This is
* used for destroying a tree without paying the cost to
* rebalance it. The tree must not be otherwise altered
* during traversal.
* Args:
* tree: Pointer to an initialized red-black tree object.
* cb : Callback function, which, if non-null, is called for each node
* during iteration. There is no way to stop iteration once it
* has begun.
* arg : Opaque pointer passed to cb().
*/
#define rb_gen(a_attr, a_prefix, a_rbt_type, a_type, a_field, a_cmp) \
a_attr void \
a_prefix##new(a_rbt_type *rbtree) { \
rb_new(a_type, a_field, rbtree); \
} \
a_attr bool \
a_prefix##empty(a_rbt_type *rbtree) { \
return (rbtree->rbt_root == NULL); \
} \
a_attr a_type * \
a_prefix##first(a_rbt_type *rbtree) { \
a_type *ret; \
rbtn_first(a_type, a_field, rbtree, rbtree->rbt_root, ret); \
return (ret); \
} \
a_attr a_type * \
a_prefix##last(a_rbt_type *rbtree) { \
a_type *ret; \
rbtn_last(a_type, a_field, rbtree, rbtree->rbt_root, ret); \
return (ret); \
} \
a_attr a_type * \
a_prefix##next(a_rbt_type *rbtree, a_type *node) { \
a_type *ret; \
if (rbtn_right_get(a_type, a_field, node) != NULL) { \
rbtn_first(a_type, a_field, rbtree, rbtn_right_get(a_type, \
a_field, node), ret); \
} else { \
a_type *tnode = rbtree->rbt_root; \
assert(tnode != NULL); \
ret = NULL; \
while (true) { \
int cmp = (a_cmp)(node, tnode); \
if (cmp < 0) { \
ret = tnode; \
tnode = rbtn_left_get(a_type, a_field, tnode); \
} else if (cmp > 0) { \
tnode = rbtn_right_get(a_type, a_field, tnode); \
} else { \
break; \
} \
assert(tnode != NULL); \
} \
} \
return (ret); \
} \
a_attr a_type * \
a_prefix##prev(a_rbt_type *rbtree, a_type *node) { \
a_type *ret; \
if (rbtn_left_get(a_type, a_field, node) != NULL) { \
rbtn_last(a_type, a_field, rbtree, rbtn_left_get(a_type, \
a_field, node), ret); \
} else { \
a_type *tnode = rbtree->rbt_root; \
assert(tnode != NULL); \
ret = NULL; \
while (true) { \
int cmp = (a_cmp)(node, tnode); \
if (cmp < 0) { \
tnode = rbtn_left_get(a_type, a_field, tnode); \
} else if (cmp > 0) { \
ret = tnode; \
tnode = rbtn_right_get(a_type, a_field, tnode); \
} else { \
break; \
} \
assert(tnode != NULL); \
} \
} \
return (ret); \
} \
a_attr a_type * \
a_prefix##search(a_rbt_type *rbtree, const a_type *key) { \
a_type *ret; \
int cmp; \
ret = rbtree->rbt_root; \
while (ret != NULL \
&& (cmp = (a_cmp)(key, ret)) != 0) { \
if (cmp < 0) { \
ret = rbtn_left_get(a_type, a_field, ret); \
} else { \
ret = rbtn_right_get(a_type, a_field, ret); \
} \
} \
return (ret); \
} \
a_attr a_type * \
a_prefix##nsearch(a_rbt_type *rbtree, const a_type *key) { \
a_type *ret; \
a_type *tnode = rbtree->rbt_root; \
ret = NULL; \
while (tnode != NULL) { \
int cmp = (a_cmp)(key, tnode); \
if (cmp < 0) { \
ret = tnode; \
tnode = rbtn_left_get(a_type, a_field, tnode); \
} else if (cmp > 0) { \
tnode = rbtn_right_get(a_type, a_field, tnode); \
} else { \
ret = tnode; \
break; \
} \
} \
return (ret); \
} \
a_attr a_type * \
a_prefix##psearch(a_rbt_type *rbtree, const a_type *key) { \
a_type *ret; \
a_type *tnode = rbtree->rbt_root; \
ret = NULL; \
while (tnode != NULL) { \
int cmp = (a_cmp)(key, tnode); \
if (cmp < 0) { \
tnode = rbtn_left_get(a_type, a_field, tnode); \
} else if (cmp > 0) { \
ret = tnode; \
tnode = rbtn_right_get(a_type, a_field, tnode); \
} else { \
ret = tnode; \
break; \
} \
} \
return (ret); \
} \
a_attr void \
a_prefix##insert(a_rbt_type *rbtree, a_type *node) { \
struct { \
a_type *node; \
int cmp; \
} path[sizeof(void *) << 4], *pathp; \
rbt_node_new(a_type, a_field, rbtree, node); \
/* Wind. */ \
path->node = rbtree->rbt_root; \
for (pathp = path; pathp->node != NULL; pathp++) { \
int cmp = pathp->cmp = a_cmp(node, pathp->node); \
assert(cmp != 0); \
if (cmp < 0) { \
pathp[1].node = rbtn_left_get(a_type, a_field, \
pathp->node); \
} else { \
pathp[1].node = rbtn_right_get(a_type, a_field, \
pathp->node); \
} \
} \
pathp->node = node; \
/* Unwind. */ \
for (pathp--; (uintptr_t)pathp >= (uintptr_t)path; pathp--) { \
a_type *cnode = pathp->node; \
if (pathp->cmp < 0) { \
a_type *left = pathp[1].node; \
rbtn_left_set(a_type, a_field, cnode, left); \
if (rbtn_red_get(a_type, a_field, left)) { \
a_type *leftleft = rbtn_left_get(a_type, a_field, left);\
if (leftleft != NULL && rbtn_red_get(a_type, a_field, \
leftleft)) { \
/* Fix up 4-node. */ \
a_type *tnode; \
rbtn_black_set(a_type, a_field, leftleft); \
rbtn_rotate_right(a_type, a_field, cnode, tnode); \
cnode = tnode; \
} \
} else { \
return; \
} \
} else { \
a_type *right = pathp[1].node; \
rbtn_right_set(a_type, a_field, cnode, right); \
if (rbtn_red_get(a_type, a_field, right)) { \
a_type *left = rbtn_left_get(a_type, a_field, cnode); \
if (left != NULL && rbtn_red_get(a_type, a_field, \
left)) { \
/* Split 4-node. */ \
rbtn_black_set(a_type, a_field, left); \
rbtn_black_set(a_type, a_field, right); \
rbtn_red_set(a_type, a_field, cnode); \
} else { \
/* Lean left. */ \
a_type *tnode; \
bool tred = rbtn_red_get(a_type, a_field, cnode); \
rbtn_rotate_left(a_type, a_field, cnode, tnode); \
rbtn_color_set(a_type, a_field, tnode, tred); \
rbtn_red_set(a_type, a_field, cnode); \
cnode = tnode; \
} \
} else { \
return; \
} \
} \
pathp->node = cnode; \
} \
/* Set root, and make it black. */ \
rbtree->rbt_root = path->node; \
rbtn_black_set(a_type, a_field, rbtree->rbt_root); \
} \
a_attr void \
a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \
struct { \
a_type *node; \
int cmp; \
} *pathp, *nodep, path[sizeof(void *) << 4]; \
/* Wind. */ \
nodep = NULL; /* Silence compiler warning. */ \
path->node = rbtree->rbt_root; \
for (pathp = path; pathp->node != NULL; pathp++) { \
int cmp = pathp->cmp = a_cmp(node, pathp->node); \
if (cmp < 0) { \
pathp[1].node = rbtn_left_get(a_type, a_field, \
pathp->node); \
} else { \
pathp[1].node = rbtn_right_get(a_type, a_field, \
pathp->node); \
if (cmp == 0) { \
/* Find node's successor, in preparation for swap. */ \
pathp->cmp = 1; \
nodep = pathp; \
for (pathp++; pathp->node != NULL; \
pathp++) { \
pathp->cmp = -1; \
pathp[1].node = rbtn_left_get(a_type, a_field, \
pathp->node); \
} \
break; \
} \
} \
} \
assert(nodep->node == node); \
pathp--; \
if (pathp->node != node) { \
/* Swap node with its successor. */ \
bool tred = rbtn_red_get(a_type, a_field, pathp->node); \
rbtn_color_set(a_type, a_field, pathp->node, \
rbtn_red_get(a_type, a_field, node)); \
rbtn_left_set(a_type, a_field, pathp->node, \
rbtn_left_get(a_type, a_field, node)); \
/* If node's successor is its right child, the following code */\
/* will do the wrong thing for the right child pointer. */\
/* However, it doesn't matter, because the pointer will be */\
/* properly set when the successor is pruned. */\
rbtn_right_set(a_type, a_field, pathp->node, \
rbtn_right_get(a_type, a_field, node)); \
rbtn_color_set(a_type, a_field, node, tred); \
/* The pruned leaf node's child pointers are never accessed */\
/* again, so don't bother setting them to nil. */\
nodep->node = pathp->node; \
pathp->node = node; \
if (nodep == path) { \
rbtree->rbt_root = nodep->node; \
} else { \
if (nodep[-1].cmp < 0) { \
rbtn_left_set(a_type, a_field, nodep[-1].node, \
nodep->node); \
} else { \
rbtn_right_set(a_type, a_field, nodep[-1].node, \
nodep->node); \
} \
} \
} else { \
a_type *left = rbtn_left_get(a_type, a_field, node); \
if (left != NULL) { \
/* node has no successor, but it has a left child. */\
/* Splice node out, without losing the left child. */\
assert(!rbtn_red_get(a_type, a_field, node)); \
assert(rbtn_red_get(a_type, a_field, left)); \
rbtn_black_set(a_type, a_field, left); \
if (pathp == path) { \
rbtree->rbt_root = left; \
} else { \
if (pathp[-1].cmp < 0) { \
rbtn_left_set(a_type, a_field, pathp[-1].node, \
left); \
} else { \
rbtn_right_set(a_type, a_field, pathp[-1].node, \
left); \
} \
} \
return; \
} else if (pathp == path) { \
/* The tree only contained one node. */ \
rbtree->rbt_root = NULL; \
return; \
} \
} \
if (rbtn_red_get(a_type, a_field, pathp->node)) { \
/* Prune red node, which requires no fixup. */ \
assert(pathp[-1].cmp < 0); \
rbtn_left_set(a_type, a_field, pathp[-1].node, NULL); \
return; \
} \
/* The node to be pruned is black, so unwind until balance is */\
/* restored. */\
pathp->node = NULL; \
for (pathp--; (uintptr_t)pathp >= (uintptr_t)path; pathp--) { \
assert(pathp->cmp != 0); \
if (pathp->cmp < 0) { \
rbtn_left_set(a_type, a_field, pathp->node, \
pathp[1].node); \
if (rbtn_red_get(a_type, a_field, pathp->node)) { \
a_type *right = rbtn_right_get(a_type, a_field, \
pathp->node); \
a_type *rightleft = rbtn_left_get(a_type, a_field, \
right); \
a_type *tnode; \
if (rightleft != NULL && rbtn_red_get(a_type, a_field, \
rightleft)) { \
/* In the following diagrams, ||, //, and \\ */\
/* indicate the path to the removed node. */\
/* */\
/* || */\
/* pathp(r) */\
/* // \ */\
/* (b) (b) */\
/* / */\
/* (r) */\
/* */\
rbtn_black_set(a_type, a_field, pathp->node); \
rbtn_rotate_right(a_type, a_field, right, tnode); \
rbtn_right_set(a_type, a_field, pathp->node, tnode);\
rbtn_rotate_left(a_type, a_field, pathp->node, \
tnode); \
} else { \
/* || */\
/* pathp(r) */\
/* // \ */\
/* (b) (b) */\
/* / */\
/* (b) */\
/* */\
rbtn_rotate_left(a_type, a_field, pathp->node, \
tnode); \
} \
/* Balance restored, but rotation modified subtree */\
/* root. */\
assert((uintptr_t)pathp > (uintptr_t)path); \
if (pathp[-1].cmp < 0) { \
rbtn_left_set(a_type, a_field, pathp[-1].node, \
tnode); \
} else { \
rbtn_right_set(a_type, a_field, pathp[-1].node, \
tnode); \
} \
return; \
} else { \
a_type *right = rbtn_right_get(a_type, a_field, \
pathp->node); \
a_type *rightleft = rbtn_left_get(a_type, a_field, \
right); \
if (rightleft != NULL && rbtn_red_get(a_type, a_field, \
rightleft)) { \
/* || */\
/* pathp(b) */\
/* // \ */\
/* (b) (b) */\
/* / */\
/* (r) */\
a_type *tnode; \
rbtn_black_set(a_type, a_field, rightleft); \
rbtn_rotate_right(a_type, a_field, right, tnode); \
rbtn_right_set(a_type, a_field, pathp->node, tnode);\
rbtn_rotate_left(a_type, a_field, pathp->node, \
tnode); \
/* Balance restored, but rotation modified */\
/* subtree root, which may actually be the tree */\
/* root. */\
if (pathp == path) { \
/* Set root. */ \
rbtree->rbt_root = tnode; \
} else { \
if (pathp[-1].cmp < 0) { \
rbtn_left_set(a_type, a_field, \
pathp[-1].node, tnode); \
} else { \
rbtn_right_set(a_type, a_field, \
pathp[-1].node, tnode); \
} \
} \
return; \
} else { \
/* || */\
/* pathp(b) */\
/* // \ */\
/* (b) (b) */\
/* / */\
/* (b) */\
a_type *tnode; \
rbtn_red_set(a_type, a_field, pathp->node); \
rbtn_rotate_left(a_type, a_field, pathp->node, \
tnode); \
pathp->node = tnode; \
} \
} \
} else { \
a_type *left; \
rbtn_right_set(a_type, a_field, pathp->node, \
pathp[1].node); \
left = rbtn_left_get(a_type, a_field, pathp->node); \
if (rbtn_red_get(a_type, a_field, left)) { \
a_type *tnode; \
a_type *leftright = rbtn_right_get(a_type, a_field, \
left); \
a_type *leftrightleft = rbtn_left_get(a_type, a_field, \
leftright); \
if (leftrightleft != NULL && rbtn_red_get(a_type, \
a_field, leftrightleft)) { \
/* || */\
/* pathp(b) */\
/* / \\ */\
/* (r) (b) */\
/* \ */\
/* (b) */\
/* / */\
/* (r) */\
a_type *unode; \
rbtn_black_set(a_type, a_field, leftrightleft); \
rbtn_rotate_right(a_type, a_field, pathp->node, \
unode); \
rbtn_rotate_right(a_type, a_field, pathp->node, \
tnode); \
rbtn_right_set(a_type, a_field, unode, tnode); \
rbtn_rotate_left(a_type, a_field, unode, tnode); \
} else { \
/* || */\
/* pathp(b) */\
/* / \\ */\
/* (r) (b) */\
/* \ */\
/* (b) */\
/* / */\
/* (b) */\
assert(leftright != NULL); \
rbtn_red_set(a_type, a_field, leftright); \
rbtn_rotate_right(a_type, a_field, pathp->node, \
tnode); \
rbtn_black_set(a_type, a_field, tnode); \
} \
/* Balance restored, but rotation modified subtree */\
/* root, which may actually be the tree root. */\
if (pathp == path) { \
/* Set root. */ \
rbtree->rbt_root = tnode; \
} else { \
if (pathp[-1].cmp < 0) { \
rbtn_left_set(a_type, a_field, pathp[-1].node, \
tnode); \
} else { \
rbtn_right_set(a_type, a_field, pathp[-1].node, \
tnode); \
} \
} \
return; \
} else if (rbtn_red_get(a_type, a_field, pathp->node)) { \
a_type *leftleft = rbtn_left_get(a_type, a_field, left);\
if (leftleft != NULL && rbtn_red_get(a_type, a_field, \
leftleft)) { \
/* || */\
/* pathp(r) */\
/* / \\ */\
/* (b) (b) */\
/* / */\
/* (r) */\
a_type *tnode; \
rbtn_black_set(a_type, a_field, pathp->node); \
rbtn_red_set(a_type, a_field, left); \
rbtn_black_set(a_type, a_field, leftleft); \
rbtn_rotate_right(a_type, a_field, pathp->node, \
tnode); \
/* Balance restored, but rotation modified */\
/* subtree root. */\
assert((uintptr_t)pathp > (uintptr_t)path); \
if (pathp[-1].cmp < 0) { \
rbtn_left_set(a_type, a_field, pathp[-1].node, \
tnode); \
} else { \
rbtn_right_set(a_type, a_field, pathp[-1].node, \
tnode); \
} \
return; \
} else { \
/* || */\
/* pathp(r) */\
/* / \\ */\
/* (b) (b) */\
/* / */\
/* (b) */\
rbtn_red_set(a_type, a_field, left); \
rbtn_black_set(a_type, a_field, pathp->node); \
/* Balance restored. */ \
return; \
} \
} else { \
a_type *leftleft = rbtn_left_get(a_type, a_field, left);\
if (leftleft != NULL && rbtn_red_get(a_type, a_field, \
leftleft)) { \
/* || */\
/* pathp(b) */\
/* / \\ */\
/* (b) (b) */\
/* / */\
/* (r) */\
a_type *tnode; \
rbtn_black_set(a_type, a_field, leftleft); \
rbtn_rotate_right(a_type, a_field, pathp->node, \
tnode); \
/* Balance restored, but rotation modified */\
/* subtree root, which may actually be the tree */\
/* root. */\
if (pathp == path) { \
/* Set root. */ \
rbtree->rbt_root = tnode; \
} else { \
if (pathp[-1].cmp < 0) { \
rbtn_left_set(a_type, a_field, \
pathp[-1].node, tnode); \
} else { \
rbtn_right_set(a_type, a_field, \
pathp[-1].node, tnode); \
} \
} \
return; \
} else { \
/* || */\
/* pathp(b) */\
/* / \\ */\
/* (b) (b) */\
/* / */\
/* (b) */\
rbtn_red_set(a_type, a_field, left); \
} \
} \
} \
} \
/* Set root. */ \
rbtree->rbt_root = path->node; \
assert(!rbtn_red_get(a_type, a_field, rbtree->rbt_root)); \
} \
a_attr a_type * \
a_prefix##iter_recurse(a_rbt_type *rbtree, a_type *node, \
a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \
if (node == NULL) { \
return (NULL); \
} else { \
a_type *ret; \
if ((ret = a_prefix##iter_recurse(rbtree, rbtn_left_get(a_type, \
a_field, node), cb, arg)) != NULL || (ret = cb(rbtree, node, \
arg)) != NULL) { \
return (ret); \
} \
return (a_prefix##iter_recurse(rbtree, rbtn_right_get(a_type, \
a_field, node), cb, arg)); \
} \
} \
a_attr a_type * \
a_prefix##iter_start(a_rbt_type *rbtree, a_type *start, a_type *node, \
a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \
int cmp = a_cmp(start, node); \
if (cmp < 0) { \
a_type *ret; \
if ((ret = a_prefix##iter_start(rbtree, start, \
rbtn_left_get(a_type, a_field, node), cb, arg)) != NULL || \
(ret = cb(rbtree, node, arg)) != NULL) { \
return (ret); \
} \
return (a_prefix##iter_recurse(rbtree, rbtn_right_get(a_type, \
a_field, node), cb, arg)); \
} else if (cmp > 0) { \
return (a_prefix##iter_start(rbtree, start, \
rbtn_right_get(a_type, a_field, node), cb, arg)); \
} else { \
a_type *ret; \
if ((ret = cb(rbtree, node, arg)) != NULL) { \
return (ret); \
} \
return (a_prefix##iter_recurse(rbtree, rbtn_right_get(a_type, \
a_field, node), cb, arg)); \
} \
} \
a_attr a_type * \
a_prefix##iter(a_rbt_type *rbtree, a_type *start, a_type *(*cb)( \
a_rbt_type *, a_type *, void *), void *arg) { \
a_type *ret; \
if (start != NULL) { \
ret = a_prefix##iter_start(rbtree, start, rbtree->rbt_root, \
cb, arg); \
} else { \
ret = a_prefix##iter_recurse(rbtree, rbtree->rbt_root, cb, arg);\
} \
return (ret); \
} \
a_attr a_type * \
a_prefix##reverse_iter_recurse(a_rbt_type *rbtree, a_type *node, \
a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \
if (node == NULL) { \
return (NULL); \
} else { \
a_type *ret; \
if ((ret = a_prefix##reverse_iter_recurse(rbtree, \
rbtn_right_get(a_type, a_field, node), cb, arg)) != NULL || \
(ret = cb(rbtree, node, arg)) != NULL) { \
return (ret); \
} \
return (a_prefix##reverse_iter_recurse(rbtree, \
rbtn_left_get(a_type, a_field, node), cb, arg)); \
} \
} \
a_attr a_type * \
a_prefix##reverse_iter_start(a_rbt_type *rbtree, a_type *start, \
a_type *node, a_type *(*cb)(a_rbt_type *, a_type *, void *), \
void *arg) { \
int cmp = a_cmp(start, node); \
if (cmp > 0) { \
a_type *ret; \
if ((ret = a_prefix##reverse_iter_start(rbtree, start, \
rbtn_right_get(a_type, a_field, node), cb, arg)) != NULL || \
(ret = cb(rbtree, node, arg)) != NULL) { \
return (ret); \
} \
return (a_prefix##reverse_iter_recurse(rbtree, \
rbtn_left_get(a_type, a_field, node), cb, arg)); \
} else if (cmp < 0) { \
return (a_prefix##reverse_iter_start(rbtree, start, \
rbtn_left_get(a_type, a_field, node), cb, arg)); \
} else { \
a_type *ret; \
if ((ret = cb(rbtree, node, arg)) != NULL) { \
return (ret); \
} \
return (a_prefix##reverse_iter_recurse(rbtree, \
rbtn_left_get(a_type, a_field, node), cb, arg)); \
} \
} \
a_attr a_type * \
a_prefix##reverse_iter(a_rbt_type *rbtree, a_type *start, \
a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \
a_type *ret; \
if (start != NULL) { \
ret = a_prefix##reverse_iter_start(rbtree, start, \
rbtree->rbt_root, cb, arg); \
} else { \
ret = a_prefix##reverse_iter_recurse(rbtree, rbtree->rbt_root, \
cb, arg); \
} \
return (ret); \
} \
a_attr void \
a_prefix##destroy_recurse(a_rbt_type *rbtree, a_type *node, void (*cb)( \
a_type *, void *), void *arg) { \
if (node == NULL) { \
return; \
} \
a_prefix##destroy_recurse(rbtree, rbtn_left_get(a_type, a_field, \
node), cb, arg); \
rbtn_left_set(a_type, a_field, (node), NULL); \
a_prefix##destroy_recurse(rbtree, rbtn_right_get(a_type, a_field, \
node), cb, arg); \
rbtn_right_set(a_type, a_field, (node), NULL); \
if (cb) { \
cb(node, arg); \
} \
} \
a_attr void \
a_prefix##destroy(a_rbt_type *rbtree, void (*cb)(a_type *, void *), \
void *arg) { \
a_prefix##destroy_recurse(rbtree, rbtree->rbt_root, cb, arg); \
rbtree->rbt_root = NULL; \
}
#endif /* RB_H_ */
| 38,311 | 37.159363 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/rtree.h
|
/*
* This radix tree implementation is tailored to the singular purpose of
* associating metadata with chunks that are currently owned by jemalloc.
*
*******************************************************************************
*/
#ifdef JEMALLOC_H_TYPES
typedef struct rtree_node_elm_s rtree_node_elm_t;
typedef struct rtree_level_s rtree_level_t;
typedef struct rtree_s rtree_t;
/*
* RTREE_BITS_PER_LEVEL must be a power of two that is no larger than the
* machine address width.
*/
#define LG_RTREE_BITS_PER_LEVEL 4
#define RTREE_BITS_PER_LEVEL (1U << LG_RTREE_BITS_PER_LEVEL)
/* Maximum rtree height. */
#define RTREE_HEIGHT_MAX \
((1U << (LG_SIZEOF_PTR+3)) / RTREE_BITS_PER_LEVEL)
/* Used for two-stage lock-free node initialization. */
#define RTREE_NODE_INITIALIZING ((rtree_node_elm_t *)0x1)
/*
* The node allocation callback function's argument is the number of contiguous
* rtree_node_elm_t structures to allocate, and the resulting memory must be
* zeroed.
*/
typedef rtree_node_elm_t *(rtree_node_alloc_t)(size_t);
typedef void (rtree_node_dalloc_t)(rtree_node_elm_t *);
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
struct rtree_node_elm_s {
union {
void *pun;
rtree_node_elm_t *child;
extent_node_t *val;
};
};
struct rtree_level_s {
/*
* A non-NULL subtree points to a subtree rooted along the hypothetical
* path to the leaf node corresponding to key 0. Depending on what keys
* have been used to store to the tree, an arbitrary combination of
* subtree pointers may remain NULL.
*
* Suppose keys comprise 48 bits, and LG_RTREE_BITS_PER_LEVEL is 4.
* This results in a 3-level tree, and the leftmost leaf can be directly
* accessed via subtrees[2], the subtree prefixed by 0x0000 (excluding
* 0x00000000) can be accessed via subtrees[1], and the remainder of the
* tree can be accessed via subtrees[0].
*
* levels[0] : [<unused> | 0x0001******** | 0x0002******** | ...]
*
* levels[1] : [<unused> | 0x00000001**** | 0x00000002**** | ... ]
*
* levels[2] : [val(0x000000000000) | val(0x000000000001) | ...]
*
* This has practical implications on x64, which currently uses only the
* lower 47 bits of virtual address space in userland, thus leaving
* subtrees[0] unused and avoiding a level of tree traversal.
*/
union {
void *subtree_pun;
rtree_node_elm_t *subtree;
};
/* Number of key bits distinguished by this level. */
unsigned bits;
/*
* Cumulative number of key bits distinguished by traversing to
* corresponding tree level.
*/
unsigned cumbits;
};
struct rtree_s {
rtree_node_alloc_t *alloc;
rtree_node_dalloc_t *dalloc;
unsigned height;
/*
* Precomputed table used to convert from the number of leading 0 key
* bits to which subtree level to start at.
*/
unsigned start_level[RTREE_HEIGHT_MAX];
rtree_level_t levels[RTREE_HEIGHT_MAX];
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
bool rtree_new(rtree_t *rtree, unsigned bits, rtree_node_alloc_t *alloc,
rtree_node_dalloc_t *dalloc);
void rtree_delete(rtree_t *rtree);
rtree_node_elm_t *rtree_subtree_read_hard(rtree_t *rtree,
unsigned level);
rtree_node_elm_t *rtree_child_read_hard(rtree_t *rtree,
rtree_node_elm_t *elm, unsigned level);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
unsigned rtree_start_level(rtree_t *rtree, uintptr_t key);
uintptr_t rtree_subkey(rtree_t *rtree, uintptr_t key, unsigned level);
bool rtree_node_valid(rtree_node_elm_t *node);
rtree_node_elm_t *rtree_child_tryread(rtree_node_elm_t *elm,
bool dependent);
rtree_node_elm_t *rtree_child_read(rtree_t *rtree, rtree_node_elm_t *elm,
unsigned level, bool dependent);
extent_node_t *rtree_val_read(rtree_t *rtree, rtree_node_elm_t *elm,
bool dependent);
void rtree_val_write(rtree_t *rtree, rtree_node_elm_t *elm,
const extent_node_t *val);
rtree_node_elm_t *rtree_subtree_tryread(rtree_t *rtree, unsigned level,
bool dependent);
rtree_node_elm_t *rtree_subtree_read(rtree_t *rtree, unsigned level,
bool dependent);
extent_node_t *rtree_get(rtree_t *rtree, uintptr_t key, bool dependent);
bool rtree_set(rtree_t *rtree, uintptr_t key, const extent_node_t *val);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_RTREE_C_))
JEMALLOC_ALWAYS_INLINE unsigned
rtree_start_level(rtree_t *rtree, uintptr_t key)
{
unsigned start_level;
if (unlikely(key == 0))
return (rtree->height - 1);
start_level = rtree->start_level[lg_floor(key) >>
LG_RTREE_BITS_PER_LEVEL];
assert(start_level < rtree->height);
return (start_level);
}
JEMALLOC_ALWAYS_INLINE uintptr_t
rtree_subkey(rtree_t *rtree, uintptr_t key, unsigned level)
{
return ((key >> ((ZU(1) << (LG_SIZEOF_PTR+3)) -
rtree->levels[level].cumbits)) & ((ZU(1) <<
rtree->levels[level].bits) - 1));
}
JEMALLOC_ALWAYS_INLINE bool
rtree_node_valid(rtree_node_elm_t *node)
{
return ((uintptr_t)node > (uintptr_t)RTREE_NODE_INITIALIZING);
}
JEMALLOC_ALWAYS_INLINE rtree_node_elm_t *
rtree_child_tryread(rtree_node_elm_t *elm, bool dependent)
{
rtree_node_elm_t *child;
/* Double-checked read (first read may be stale. */
child = elm->child;
if (!dependent && !rtree_node_valid(child))
child = atomic_read_p(&elm->pun);
assert(!dependent || child != NULL);
return (child);
}
JEMALLOC_ALWAYS_INLINE rtree_node_elm_t *
rtree_child_read(rtree_t *rtree, rtree_node_elm_t *elm, unsigned level,
bool dependent)
{
rtree_node_elm_t *child;
child = rtree_child_tryread(elm, dependent);
if (!dependent && unlikely(!rtree_node_valid(child)))
child = rtree_child_read_hard(rtree, elm, level);
assert(!dependent || child != NULL);
return (child);
}
JEMALLOC_ALWAYS_INLINE extent_node_t *
rtree_val_read(rtree_t *rtree, rtree_node_elm_t *elm, bool dependent)
{
if (dependent) {
/*
* Reading a val on behalf of a pointer to a valid allocation is
* guaranteed to be a clean read even without synchronization,
* because the rtree update became visible in memory before the
* pointer came into existence.
*/
return (elm->val);
} else {
/*
* An arbitrary read, e.g. on behalf of ivsalloc(), may not be
* dependent on a previous rtree write, which means a stale read
* could result if synchronization were omitted here.
*/
return (atomic_read_p(&elm->pun));
}
}
JEMALLOC_INLINE void
rtree_val_write(rtree_t *rtree, rtree_node_elm_t *elm, const extent_node_t *val)
{
atomic_write_p(&elm->pun, val);
}
JEMALLOC_ALWAYS_INLINE rtree_node_elm_t *
rtree_subtree_tryread(rtree_t *rtree, unsigned level, bool dependent)
{
rtree_node_elm_t *subtree;
/* Double-checked read (first read may be stale. */
subtree = rtree->levels[level].subtree;
if (!dependent && unlikely(!rtree_node_valid(subtree)))
subtree = atomic_read_p(&rtree->levels[level].subtree_pun);
assert(!dependent || subtree != NULL);
return (subtree);
}
JEMALLOC_ALWAYS_INLINE rtree_node_elm_t *
rtree_subtree_read(rtree_t *rtree, unsigned level, bool dependent)
{
rtree_node_elm_t *subtree;
subtree = rtree_subtree_tryread(rtree, level, dependent);
if (!dependent && unlikely(!rtree_node_valid(subtree)))
subtree = rtree_subtree_read_hard(rtree, level);
assert(!dependent || subtree != NULL);
return (subtree);
}
JEMALLOC_ALWAYS_INLINE extent_node_t *
rtree_get(rtree_t *rtree, uintptr_t key, bool dependent)
{
uintptr_t subkey;
unsigned start_level;
rtree_node_elm_t *node;
start_level = rtree_start_level(rtree, key);
node = rtree_subtree_tryread(rtree, start_level, dependent);
#define RTREE_GET_BIAS (RTREE_HEIGHT_MAX - rtree->height)
switch (start_level + RTREE_GET_BIAS) {
#define RTREE_GET_SUBTREE(level) \
case level: \
assert(level < (RTREE_HEIGHT_MAX-1)); \
if (!dependent && unlikely(!rtree_node_valid(node))) \
return (NULL); \
subkey = rtree_subkey(rtree, key, level - \
RTREE_GET_BIAS); \
node = rtree_child_tryread(&node[subkey], dependent); \
/* Fall through. */
#define RTREE_GET_LEAF(level) \
case level: \
assert(level == (RTREE_HEIGHT_MAX-1)); \
if (!dependent && unlikely(!rtree_node_valid(node))) \
return (NULL); \
subkey = rtree_subkey(rtree, key, level - \
RTREE_GET_BIAS); \
/* \
* node is a leaf, so it contains values rather than \
* child pointers. \
*/ \
return (rtree_val_read(rtree, &node[subkey], \
dependent));
#if RTREE_HEIGHT_MAX > 1
RTREE_GET_SUBTREE(0)
#endif
#if RTREE_HEIGHT_MAX > 2
RTREE_GET_SUBTREE(1)
#endif
#if RTREE_HEIGHT_MAX > 3
RTREE_GET_SUBTREE(2)
#endif
#if RTREE_HEIGHT_MAX > 4
RTREE_GET_SUBTREE(3)
#endif
#if RTREE_HEIGHT_MAX > 5
RTREE_GET_SUBTREE(4)
#endif
#if RTREE_HEIGHT_MAX > 6
RTREE_GET_SUBTREE(5)
#endif
#if RTREE_HEIGHT_MAX > 7
RTREE_GET_SUBTREE(6)
#endif
#if RTREE_HEIGHT_MAX > 8
RTREE_GET_SUBTREE(7)
#endif
#if RTREE_HEIGHT_MAX > 9
RTREE_GET_SUBTREE(8)
#endif
#if RTREE_HEIGHT_MAX > 10
RTREE_GET_SUBTREE(9)
#endif
#if RTREE_HEIGHT_MAX > 11
RTREE_GET_SUBTREE(10)
#endif
#if RTREE_HEIGHT_MAX > 12
RTREE_GET_SUBTREE(11)
#endif
#if RTREE_HEIGHT_MAX > 13
RTREE_GET_SUBTREE(12)
#endif
#if RTREE_HEIGHT_MAX > 14
RTREE_GET_SUBTREE(13)
#endif
#if RTREE_HEIGHT_MAX > 15
RTREE_GET_SUBTREE(14)
#endif
#if RTREE_HEIGHT_MAX > 16
# error Unsupported RTREE_HEIGHT_MAX
#endif
RTREE_GET_LEAF(RTREE_HEIGHT_MAX-1)
#undef RTREE_GET_SUBTREE
#undef RTREE_GET_LEAF
default: not_reached();
}
#undef RTREE_GET_BIAS
not_reached();
}
JEMALLOC_INLINE bool
rtree_set(rtree_t *rtree, uintptr_t key, const extent_node_t *val)
{
uintptr_t subkey;
unsigned i, start_level;
rtree_node_elm_t *node, *child;
start_level = rtree_start_level(rtree, key);
node = rtree_subtree_read(rtree, start_level, false);
if (node == NULL)
return (true);
for (i = start_level; /**/; i++, node = child) {
subkey = rtree_subkey(rtree, key, i);
if (i == rtree->height - 1) {
/*
* node is a leaf, so it contains values rather than
* child pointers.
*/
rtree_val_write(rtree, &node[subkey], val);
return (false);
}
assert(i + 1 < rtree->height);
child = rtree_child_read(rtree, &node[subkey], i, false);
if (child == NULL)
return (true);
}
not_reached();
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 10,608 | 27.907357 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/size_classes.sh
|
#!/bin/sh
#
# Usage: size_classes.sh <lg_qarr> <lg_tmin> <lg_parr> <lg_g>
# The following limits are chosen such that they cover all supported platforms.
# Pointer sizes.
lg_zarr="2 3"
# Quanta.
lg_qarr=$1
# The range of tiny size classes is [2^lg_tmin..2^(lg_q-1)].
lg_tmin=$2
# Maximum lookup size.
lg_kmax=12
# Page sizes.
lg_parr=`echo $3 | tr ',' ' '`
# Size class group size (number of size classes for each size doubling).
lg_g=$4
pow2() {
e=$1
pow2_result=1
while [ ${e} -gt 0 ] ; do
pow2_result=$((${pow2_result} + ${pow2_result}))
e=$((${e} - 1))
done
}
lg() {
x=$1
lg_result=0
while [ ${x} -gt 1 ] ; do
lg_result=$((${lg_result} + 1))
x=$((${x} / 2))
done
}
size_class() {
index=$1
lg_grp=$2
lg_delta=$3
ndelta=$4
lg_p=$5
lg_kmax=$6
if [ ${lg_delta} -ge ${lg_p} ] ; then
psz="yes"
else
pow2 ${lg_p}; p=${pow2_result}
pow2 ${lg_grp}; grp=${pow2_result}
pow2 ${lg_delta}; delta=${pow2_result}
sz=$((${grp} + ${delta} * ${ndelta}))
npgs=$((${sz} / ${p}))
if [ ${sz} -eq $((${npgs} * ${p})) ] ; then
psz="yes"
else
psz="no"
fi
fi
lg ${ndelta}; lg_ndelta=${lg_result}; pow2 ${lg_ndelta}
if [ ${pow2_result} -lt ${ndelta} ] ; then
rem="yes"
else
rem="no"
fi
lg_size=${lg_grp}
if [ $((${lg_delta} + ${lg_ndelta})) -eq ${lg_grp} ] ; then
lg_size=$((${lg_grp} + 1))
else
lg_size=${lg_grp}
rem="yes"
fi
if [ ${lg_size} -lt $((${lg_p} + ${lg_g})) ] ; then
bin="yes"
else
bin="no"
fi
if [ ${lg_size} -lt ${lg_kmax} \
-o ${lg_size} -eq ${lg_kmax} -a ${rem} = "no" ] ; then
lg_delta_lookup=${lg_delta}
else
lg_delta_lookup="no"
fi
printf ' SC(%3d, %6d, %8d, %6d, %3s, %3s, %2s) \\\n' ${index} ${lg_grp} ${lg_delta} ${ndelta} ${psz} ${bin} ${lg_delta_lookup}
# Defined upon return:
# - psz ("yes" or "no")
# - bin ("yes" or "no")
# - lg_delta_lookup (${lg_delta} or "no")
}
sep_line() {
echo " \\"
}
size_classes() {
lg_z=$1
lg_q=$2
lg_t=$3
lg_p=$4
lg_g=$5
pow2 $((${lg_z} + 3)); ptr_bits=${pow2_result}
pow2 ${lg_g}; g=${pow2_result}
echo "#define SIZE_CLASSES \\"
echo " /* index, lg_grp, lg_delta, ndelta, psz, bin, lg_delta_lookup */ \\"
ntbins=0
nlbins=0
lg_tiny_maxclass='"NA"'
nbins=0
npsizes=0
# Tiny size classes.
ndelta=0
index=0
lg_grp=${lg_t}
lg_delta=${lg_grp}
while [ ${lg_grp} -lt ${lg_q} ] ; do
size_class ${index} ${lg_grp} ${lg_delta} ${ndelta} ${lg_p} ${lg_kmax}
if [ ${lg_delta_lookup} != "no" ] ; then
nlbins=$((${index} + 1))
fi
if [ ${psz} = "yes" ] ; then
npsizes=$((${npsizes} + 1))
fi
if [ ${bin} != "no" ] ; then
nbins=$((${index} + 1))
fi
ntbins=$((${ntbins} + 1))
lg_tiny_maxclass=${lg_grp} # Final written value is correct.
index=$((${index} + 1))
lg_delta=${lg_grp}
lg_grp=$((${lg_grp} + 1))
done
# First non-tiny group.
if [ ${ntbins} -gt 0 ] ; then
sep_line
# The first size class has an unusual encoding, because the size has to be
# split between grp and delta*ndelta.
lg_grp=$((${lg_grp} - 1))
ndelta=1
size_class ${index} ${lg_grp} ${lg_delta} ${ndelta} ${lg_p} ${lg_kmax}
index=$((${index} + 1))
lg_grp=$((${lg_grp} + 1))
lg_delta=$((${lg_delta} + 1))
if [ ${psz} = "yes" ] ; then
npsizes=$((${npsizes} + 1))
fi
fi
while [ ${ndelta} -lt ${g} ] ; do
size_class ${index} ${lg_grp} ${lg_delta} ${ndelta} ${lg_p} ${lg_kmax}
index=$((${index} + 1))
ndelta=$((${ndelta} + 1))
if [ ${psz} = "yes" ] ; then
npsizes=$((${npsizes} + 1))
fi
done
# All remaining groups.
lg_grp=$((${lg_grp} + ${lg_g}))
while [ ${lg_grp} -lt $((${ptr_bits} - 1)) ] ; do
sep_line
ndelta=1
if [ ${lg_grp} -eq $((${ptr_bits} - 2)) ] ; then
ndelta_limit=$((${g} - 1))
else
ndelta_limit=${g}
fi
while [ ${ndelta} -le ${ndelta_limit} ] ; do
size_class ${index} ${lg_grp} ${lg_delta} ${ndelta} ${lg_p} ${lg_kmax}
if [ ${lg_delta_lookup} != "no" ] ; then
nlbins=$((${index} + 1))
# Final written value is correct:
lookup_maxclass="((((size_t)1) << ${lg_grp}) + (((size_t)${ndelta}) << ${lg_delta}))"
fi
if [ ${psz} = "yes" ] ; then
npsizes=$((${npsizes} + 1))
fi
if [ ${bin} != "no" ] ; then
nbins=$((${index} + 1))
# Final written value is correct:
small_maxclass="((((size_t)1) << ${lg_grp}) + (((size_t)${ndelta}) << ${lg_delta}))"
if [ ${lg_g} -gt 0 ] ; then
lg_large_minclass=$((${lg_grp} + 1))
else
lg_large_minclass=$((${lg_grp} + 2))
fi
fi
# Final written value is correct:
huge_maxclass="((((size_t)1) << ${lg_grp}) + (((size_t)${ndelta}) << ${lg_delta}))"
index=$((${index} + 1))
ndelta=$((${ndelta} + 1))
done
lg_grp=$((${lg_grp} + 1))
lg_delta=$((${lg_delta} + 1))
done
echo
nsizes=${index}
# Defined upon completion:
# - ntbins
# - nlbins
# - nbins
# - nsizes
# - npsizes
# - lg_tiny_maxclass
# - lookup_maxclass
# - small_maxclass
# - lg_large_minclass
# - huge_maxclass
}
cat <<EOF
/* This file was automatically generated by size_classes.sh. */
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
/*
* This header requires LG_SIZEOF_PTR, LG_TINY_MIN, LG_QUANTUM, and LG_PAGE to
* be defined prior to inclusion, and it in turn defines:
*
* LG_SIZE_CLASS_GROUP: Lg of size class count for each size doubling.
* SIZE_CLASSES: Complete table of SC(index, lg_grp, lg_delta, ndelta, psz,
* bin, lg_delta_lookup) tuples.
* index: Size class index.
* lg_grp: Lg group base size (no deltas added).
* lg_delta: Lg delta to previous size class.
* ndelta: Delta multiplier. size == 1<<lg_grp + ndelta<<lg_delta
* psz: 'yes' if a multiple of the page size, 'no' otherwise.
* bin: 'yes' if a small bin size class, 'no' otherwise.
* lg_delta_lookup: Same as lg_delta if a lookup table size class, 'no'
* otherwise.
* NTBINS: Number of tiny bins.
* NLBINS: Number of bins supported by the lookup table.
* NBINS: Number of small size class bins.
* NSIZES: Number of size classes.
* NPSIZES: Number of size classes that are a multiple of (1U << LG_PAGE).
* LG_TINY_MAXCLASS: Lg of maximum tiny size class.
* LOOKUP_MAXCLASS: Maximum size class included in lookup table.
* SMALL_MAXCLASS: Maximum small size class.
* LG_LARGE_MINCLASS: Lg of minimum large size class.
* HUGE_MAXCLASS: Maximum (huge) size class.
*/
#define LG_SIZE_CLASS_GROUP ${lg_g}
EOF
for lg_z in ${lg_zarr} ; do
for lg_q in ${lg_qarr} ; do
lg_t=${lg_tmin}
while [ ${lg_t} -le ${lg_q} ] ; do
# Iterate through page sizes and compute how many bins there are.
for lg_p in ${lg_parr} ; do
echo "#if (LG_SIZEOF_PTR == ${lg_z} && LG_TINY_MIN == ${lg_t} && LG_QUANTUM == ${lg_q} && LG_PAGE == ${lg_p})"
size_classes ${lg_z} ${lg_q} ${lg_t} ${lg_p} ${lg_g}
echo "#define SIZE_CLASSES_DEFINED"
echo "#define NTBINS ${ntbins}"
echo "#define NLBINS ${nlbins}"
echo "#define NBINS ${nbins}"
echo "#define NSIZES ${nsizes}"
echo "#define NPSIZES ${npsizes}"
echo "#define LG_TINY_MAXCLASS ${lg_tiny_maxclass}"
echo "#define LOOKUP_MAXCLASS ${lookup_maxclass}"
echo "#define SMALL_MAXCLASS ${small_maxclass}"
echo "#define LG_LARGE_MINCLASS ${lg_large_minclass}"
echo "#define HUGE_MAXCLASS ${huge_maxclass}"
echo "#endif"
echo
done
lg_t=$((${lg_t} + 1))
done
done
done
cat <<EOF
#ifndef SIZE_CLASSES_DEFINED
# error "No size class definitions match configuration"
#endif
#undef SIZE_CLASSES_DEFINED
/*
* The size2index_tab lookup table uses uint8_t to encode each bin index, so we
* cannot support more than 256 small size classes. Further constrain NBINS to
* 255 since all small size classes, plus a "not small" size class must be
* stored in 8 bits of arena_chunk_map_bits_t's bits field.
*/
#if (NBINS > 255)
# error "Too many small size classes"
#endif
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
EOF
| 8,909 | 26.931034 | 131 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/private_namespace.sh
|
#!/bin/sh
for symbol in `cat $1` ; do
echo "#define ${symbol} JEMALLOC_N(${symbol})"
done
| 93 | 14.666667 | 48 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/stats.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
typedef struct tcache_bin_stats_s tcache_bin_stats_t;
typedef struct malloc_bin_stats_s malloc_bin_stats_t;
typedef struct malloc_large_stats_s malloc_large_stats_t;
typedef struct malloc_huge_stats_s malloc_huge_stats_t;
typedef struct arena_stats_s arena_stats_t;
typedef struct chunk_stats_s chunk_stats_t;
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
struct tcache_bin_stats_s {
/*
* Number of allocation requests that corresponded to the size of this
* bin.
*/
uint64_t nrequests;
};
struct malloc_bin_stats_s {
/*
* Total number of allocation/deallocation requests served directly by
* the bin. Note that tcache may allocate an object, then recycle it
* many times, resulting many increments to nrequests, but only one
* each to nmalloc and ndalloc.
*/
uint64_t nmalloc;
uint64_t ndalloc;
/*
* Number of allocation requests that correspond to the size of this
* bin. This includes requests served by tcache, though tcache only
* periodically merges into this counter.
*/
uint64_t nrequests;
/*
* Current number of regions of this size class, including regions
* currently cached by tcache.
*/
size_t curregs;
/* Number of tcache fills from this bin. */
uint64_t nfills;
/* Number of tcache flushes to this bin. */
uint64_t nflushes;
/* Total number of runs created for this bin's size class. */
uint64_t nruns;
/*
* Total number of runs reused by extracting them from the runs tree for
* this bin's size class.
*/
uint64_t reruns;
/* Current number of runs in this bin. */
size_t curruns;
};
struct malloc_large_stats_s {
/*
* Total number of allocation/deallocation requests served directly by
* the arena. Note that tcache may allocate an object, then recycle it
* many times, resulting many increments to nrequests, but only one
* each to nmalloc and ndalloc.
*/
uint64_t nmalloc;
uint64_t ndalloc;
/*
* Number of allocation requests that correspond to this size class.
* This includes requests served by tcache, though tcache only
* periodically merges into this counter.
*/
uint64_t nrequests;
/*
* Current number of runs of this size class, including runs currently
* cached by tcache.
*/
size_t curruns;
};
struct malloc_huge_stats_s {
/*
* Total number of allocation/deallocation requests served directly by
* the arena.
*/
uint64_t nmalloc;
uint64_t ndalloc;
/* Current number of (multi-)chunk allocations of this size class. */
size_t curhchunks;
};
struct arena_stats_s {
/* Number of bytes currently mapped. */
size_t mapped;
/*
* Number of bytes currently retained as a side effect of munmap() being
* disabled/bypassed. Retained bytes are technically mapped (though
* always decommitted or purged), but they are excluded from the mapped
* statistic (above).
*/
size_t retained;
/*
* Total number of purge sweeps, total number of madvise calls made,
* and total pages purged in order to keep dirty unused memory under
* control.
*/
uint64_t npurge;
uint64_t nmadvise;
uint64_t purged;
/*
* Number of bytes currently mapped purely for metadata purposes, and
* number of bytes currently allocated for internal metadata.
*/
size_t metadata_mapped;
size_t metadata_allocated; /* Protected via atomic_*_z(). */
/* Per-size-category statistics. */
size_t allocated_large;
uint64_t nmalloc_large;
uint64_t ndalloc_large;
uint64_t nrequests_large;
size_t allocated_huge;
uint64_t nmalloc_huge;
uint64_t ndalloc_huge;
/* One element for each large size class. */
malloc_large_stats_t *lstats;
/* One element for each huge size class. */
malloc_huge_stats_t *hstats;
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
extern bool opt_stats_print;
extern size_t stats_cactive;
void stats_print(void (*write)(void *, const char *), void *cbopaque,
const char *opts);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
size_t stats_cactive_get(void);
void stats_cactive_add(size_t size);
void stats_cactive_sub(size_t size);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_STATS_C_))
JEMALLOC_INLINE size_t
stats_cactive_get(void)
{
return (atomic_read_z(&stats_cactive));
}
JEMALLOC_INLINE void
stats_cactive_add(size_t size)
{
assert(size > 0);
assert((size & chunksize_mask) == 0);
atomic_add_z(&stats_cactive, size);
}
JEMALLOC_INLINE void
stats_cactive_sub(size_t size)
{
assert(size > 0);
assert((size & chunksize_mask) == 0);
atomic_sub_z(&stats_cactive, size);
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 5,028 | 24.39899 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/util.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
#ifdef _WIN32
# ifdef _WIN64
# define FMT64_PREFIX "ll"
# define FMTPTR_PREFIX "ll"
# else
# define FMT64_PREFIX "ll"
# define FMTPTR_PREFIX ""
# endif
# define FMTd32 "d"
# define FMTu32 "u"
# define FMTx32 "x"
# define FMTd64 FMT64_PREFIX "d"
# define FMTu64 FMT64_PREFIX "u"
# define FMTx64 FMT64_PREFIX "x"
# define FMTdPTR FMTPTR_PREFIX "d"
# define FMTuPTR FMTPTR_PREFIX "u"
# define FMTxPTR FMTPTR_PREFIX "x"
#else
# include <inttypes.h>
# define FMTd32 PRId32
# define FMTu32 PRIu32
# define FMTx32 PRIx32
# define FMTd64 PRId64
# define FMTu64 PRIu64
# define FMTx64 PRIx64
# define FMTdPTR PRIdPTR
# define FMTuPTR PRIuPTR
# define FMTxPTR PRIxPTR
#endif
/* Size of stack-allocated buffer passed to buferror(). */
#define BUFERROR_BUF 64
/*
* Size of stack-allocated buffer used by malloc_{,v,vc}printf(). This must be
* large enough for all possible uses within jemalloc.
*/
#define MALLOC_PRINTF_BUFSIZE 4096
/* Junk fill patterns. */
#ifndef JEMALLOC_ALLOC_JUNK
# define JEMALLOC_ALLOC_JUNK ((uint8_t)0xa5)
#endif
#ifndef JEMALLOC_FREE_JUNK
# define JEMALLOC_FREE_JUNK ((uint8_t)0x5a)
#endif
/*
* Wrap a cpp argument that contains commas such that it isn't broken up into
* multiple arguments.
*/
#define JEMALLOC_ARG_CONCAT(...) __VA_ARGS__
/*
* Silence compiler warnings due to uninitialized values. This is used
* wherever the compiler fails to recognize that the variable is never used
* uninitialized.
*/
#ifdef JEMALLOC_CC_SILENCE
# define JEMALLOC_CC_SILENCE_INIT(v) = v
#else
# define JEMALLOC_CC_SILENCE_INIT(v)
#endif
#ifdef __GNUC__
# define likely(x) __builtin_expect(!!(x), 1)
# define unlikely(x) __builtin_expect(!!(x), 0)
#else
# define likely(x) !!(x)
# define unlikely(x) !!(x)
#endif
#if !defined(JEMALLOC_INTERNAL_UNREACHABLE)
# error JEMALLOC_INTERNAL_UNREACHABLE should have been defined by configure
#endif
#define unreachable() JEMALLOC_INTERNAL_UNREACHABLE()
#include "jemalloc/internal/assert.h"
/* Use to assert a particular configuration, e.g., cassert(config_debug). */
#define cassert(c) do { \
if (unlikely(!(c))) \
not_reached(); \
} while (0)
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
int buferror(int err, char *buf, size_t buflen);
uintmax_t malloc_strtoumax(const char *restrict nptr,
char **restrict endptr, int base);
void malloc_write(const char *s);
/*
* malloc_vsnprintf() supports a subset of snprintf(3) that avoids floating
* point math.
*/
size_t malloc_vsnprintf(char *str, size_t size, const char *format,
va_list ap);
size_t malloc_snprintf(char *str, size_t size, const char *format, ...)
JEMALLOC_FORMAT_PRINTF(3, 4);
void malloc_vcprintf(void (*write_cb)(void *, const char *), void *cbopaque,
const char *format, va_list ap);
void malloc_cprintf(void (*write)(void *, const char *), void *cbopaque,
const char *format, ...) JEMALLOC_FORMAT_PRINTF(3, 4);
void malloc_printf(const char *format, ...) JEMALLOC_FORMAT_PRINTF(1, 2);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
unsigned ffs_llu(unsigned long long bitmap);
unsigned ffs_lu(unsigned long bitmap);
unsigned ffs_u(unsigned bitmap);
unsigned ffs_zu(size_t bitmap);
unsigned ffs_u64(uint64_t bitmap);
unsigned ffs_u32(uint32_t bitmap);
uint64_t pow2_ceil_u64(uint64_t x);
uint32_t pow2_ceil_u32(uint32_t x);
size_t pow2_ceil_zu(size_t x);
unsigned lg_floor(size_t x);
void set_errno(int errnum);
int get_errno(void);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_UTIL_C_))
/* Sanity check. */
#if !defined(JEMALLOC_INTERNAL_FFSLL) || !defined(JEMALLOC_INTERNAL_FFSL) \
|| !defined(JEMALLOC_INTERNAL_FFS)
# error JEMALLOC_INTERNAL_FFS{,L,LL} should have been defined by configure
#endif
JEMALLOC_ALWAYS_INLINE unsigned
ffs_llu(unsigned long long bitmap)
{
return (JEMALLOC_INTERNAL_FFSLL(bitmap));
}
JEMALLOC_ALWAYS_INLINE unsigned
ffs_lu(unsigned long bitmap)
{
return (JEMALLOC_INTERNAL_FFSL(bitmap));
}
JEMALLOC_ALWAYS_INLINE unsigned
ffs_u(unsigned bitmap)
{
return (JEMALLOC_INTERNAL_FFS(bitmap));
}
JEMALLOC_ALWAYS_INLINE unsigned
ffs_zu(size_t bitmap)
{
#if LG_SIZEOF_PTR == LG_SIZEOF_INT
return (ffs_u(bitmap));
#elif LG_SIZEOF_PTR == LG_SIZEOF_LONG
return (ffs_lu(bitmap));
#elif LG_SIZEOF_PTR == LG_SIZEOF_LONG_LONG
return (ffs_llu(bitmap));
#else
#error No implementation for size_t ffs()
#endif
}
JEMALLOC_ALWAYS_INLINE unsigned
ffs_u64(uint64_t bitmap)
{
#if LG_SIZEOF_LONG == 3
return (ffs_lu(bitmap));
#elif LG_SIZEOF_LONG_LONG == 3
return (ffs_llu(bitmap));
#else
#error No implementation for 64-bit ffs()
#endif
}
JEMALLOC_ALWAYS_INLINE unsigned
ffs_u32(uint32_t bitmap)
{
#if LG_SIZEOF_INT == 2
return (ffs_u(bitmap));
#else
#error No implementation for 32-bit ffs()
#endif
return (ffs_u(bitmap));
}
JEMALLOC_INLINE uint64_t
pow2_ceil_u64(uint64_t x)
{
x--;
x |= x >> 1;
x |= x >> 2;
x |= x >> 4;
x |= x >> 8;
x |= x >> 16;
x |= x >> 32;
x++;
return (x);
}
JEMALLOC_INLINE uint32_t
pow2_ceil_u32(uint32_t x)
{
x--;
x |= x >> 1;
x |= x >> 2;
x |= x >> 4;
x |= x >> 8;
x |= x >> 16;
x++;
return (x);
}
/* Compute the smallest power of 2 that is >= x. */
JEMALLOC_INLINE size_t
pow2_ceil_zu(size_t x)
{
#if (LG_SIZEOF_PTR == 3)
return (pow2_ceil_u64(x));
#else
return (pow2_ceil_u32(x));
#endif
}
#if (defined(__i386__) || defined(__amd64__) || defined(__x86_64__))
JEMALLOC_INLINE unsigned
lg_floor(size_t x)
{
size_t ret;
assert(x != 0);
asm ("bsr %1, %0"
: "=r"(ret) // Outputs.
: "r"(x) // Inputs.
);
assert(ret < UINT_MAX);
return ((unsigned)ret);
}
#elif (defined(_MSC_VER))
JEMALLOC_INLINE unsigned
lg_floor(size_t x)
{
unsigned long ret;
assert(x != 0);
#if (LG_SIZEOF_PTR == 3)
_BitScanReverse64(&ret, x);
#elif (LG_SIZEOF_PTR == 2)
_BitScanReverse(&ret, x);
#else
# error "Unsupported type size for lg_floor()"
#endif
assert(ret < UINT_MAX);
return ((unsigned)ret);
}
#elif (defined(JEMALLOC_HAVE_BUILTIN_CLZ))
JEMALLOC_INLINE unsigned
lg_floor(size_t x)
{
assert(x != 0);
#if (LG_SIZEOF_PTR == LG_SIZEOF_INT)
return (((8 << LG_SIZEOF_PTR) - 1) - __builtin_clz(x));
#elif (LG_SIZEOF_PTR == LG_SIZEOF_LONG)
return (((8 << LG_SIZEOF_PTR) - 1) - __builtin_clzl(x));
#else
# error "Unsupported type size for lg_floor()"
#endif
}
#else
JEMALLOC_INLINE unsigned
lg_floor(size_t x)
{
assert(x != 0);
x |= (x >> 1);
x |= (x >> 2);
x |= (x >> 4);
x |= (x >> 8);
x |= (x >> 16);
#if (LG_SIZEOF_PTR == 3)
x |= (x >> 32);
#endif
if (x == SIZE_T_MAX)
return ((8 << LG_SIZEOF_PTR) - 1);
x++;
return (ffs_zu(x) - 2);
}
#endif
/* Set error code. */
JEMALLOC_INLINE void
set_errno(int errnum)
{
#ifdef _WIN32
SetLastError(errnum);
#else
errno = errnum;
#endif
}
/* Get last error code. */
JEMALLOC_INLINE int
get_errno(void)
{
#ifdef _WIN32
return (GetLastError());
#else
return (errno);
#endif
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 7,458 | 20.746356 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/tcache.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
typedef struct tcache_bin_info_s tcache_bin_info_t;
typedef struct tcache_bin_s tcache_bin_t;
typedef struct tcache_s tcache_t;
typedef struct tcaches_s tcaches_t;
/*
* tcache pointers close to NULL are used to encode state information that is
* used for two purposes: preventing thread caching on a per thread basis and
* cleaning up during thread shutdown.
*/
#define TCACHE_STATE_DISABLED ((tcache_t *)(uintptr_t)1)
#define TCACHE_STATE_REINCARNATED ((tcache_t *)(uintptr_t)2)
#define TCACHE_STATE_PURGATORY ((tcache_t *)(uintptr_t)3)
#define TCACHE_STATE_MAX TCACHE_STATE_PURGATORY
/*
* Absolute minimum number of cache slots for each small bin.
*/
#define TCACHE_NSLOTS_SMALL_MIN 20
/*
* Absolute maximum number of cache slots for each small bin in the thread
* cache. This is an additional constraint beyond that imposed as: twice the
* number of regions per run for this size class.
*
* This constant must be an even number.
*/
#define TCACHE_NSLOTS_SMALL_MAX 200
/* Number of cache slots for large size classes. */
#define TCACHE_NSLOTS_LARGE 20
/* (1U << opt_lg_tcache_max) is used to compute tcache_maxclass. */
#define LG_TCACHE_MAXCLASS_DEFAULT 15
/*
* TCACHE_GC_SWEEP is the approximate number of allocation events between
* full GC sweeps. Integer rounding may cause the actual number to be
* slightly higher, since GC is performed incrementally.
*/
#define TCACHE_GC_SWEEP 8192
/* Number of tcache allocation/deallocation events between incremental GCs. */
#define TCACHE_GC_INCR \
((TCACHE_GC_SWEEP / NBINS) + ((TCACHE_GC_SWEEP / NBINS == 0) ? 0 : 1))
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
typedef enum {
tcache_enabled_false = 0, /* Enable cast to/from bool. */
tcache_enabled_true = 1,
tcache_enabled_default = 2
} tcache_enabled_t;
/*
* Read-only information associated with each element of tcache_t's tbins array
* is stored separately, mainly to reduce memory usage.
*/
struct tcache_bin_info_s {
unsigned ncached_max; /* Upper limit on ncached. */
};
struct tcache_bin_s {
tcache_bin_stats_t tstats;
int low_water; /* Min # cached since last GC. */
unsigned lg_fill_div; /* Fill (ncached_max >> lg_fill_div). */
unsigned ncached; /* # of cached objects. */
/*
* To make use of adjacent cacheline prefetch, the items in the avail
* stack goes to higher address for newer allocations. avail points
* just above the available space, which means that
* avail[-ncached, ... -1] are available items and the lowest item will
* be allocated first.
*/
void **avail; /* Stack of available objects. */
};
struct tcache_s {
ql_elm(tcache_t) link; /* Used for aggregating stats. */
uint64_t prof_accumbytes;/* Cleared after arena_prof_accum(). */
ticker_t gc_ticker; /* Drives incremental GC. */
szind_t next_gc_bin; /* Next bin to GC. */
tcache_bin_t tbins[1]; /* Dynamically sized. */
/*
* The pointer stacks associated with tbins follow as a contiguous
* array. During tcache initialization, the avail pointer in each
* element of tbins is initialized to point to the proper offset within
* this array.
*/
};
/* Linkage for list of available (previously used) explicit tcache IDs. */
struct tcaches_s {
union {
tcache_t *tcache;
tcaches_t *next;
};
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
extern bool opt_tcache;
extern ssize_t opt_lg_tcache_max;
extern tcache_bin_info_t *tcache_bin_info;
/*
* Number of tcache bins. There are NBINS small-object bins, plus 0 or more
* large-object bins.
*/
extern unsigned nhbins;
/* Maximum cached size class. */
extern size_t tcache_maxclass;
/*
* Explicit tcaches, managed via the tcache.{create,flush,destroy} mallctls and
* usable via the MALLOCX_TCACHE() flag. The automatic per thread tcaches are
* completely disjoint from this data structure. tcaches starts off as a sparse
* array, so it has no physical memory footprint until individual pages are
* touched. This allows the entire array to be allocated the first time an
* explicit tcache is created without a disproportionate impact on memory usage.
*/
extern tcaches_t *tcaches;
size_t tcache_salloc(tsdn_t *tsdn, const void *ptr);
void tcache_event_hard(tsd_t *tsd, tcache_t *tcache);
void *tcache_alloc_small_hard(tsdn_t *tsdn, arena_t *arena, tcache_t *tcache,
tcache_bin_t *tbin, szind_t binind, bool *tcache_success);
void tcache_bin_flush_small(tsd_t *tsd, tcache_t *tcache, tcache_bin_t *tbin,
szind_t binind, unsigned rem);
void tcache_bin_flush_large(tsd_t *tsd, tcache_bin_t *tbin, szind_t binind,
unsigned rem, tcache_t *tcache);
void tcache_arena_reassociate(tsdn_t *tsdn, tcache_t *tcache,
arena_t *oldarena, arena_t *newarena);
tcache_t *tcache_get_hard(tsd_t *tsd);
tcache_t *tcache_create(tsdn_t *tsdn, arena_t *arena);
void tcache_cleanup(tsd_t *tsd);
void tcache_enabled_cleanup(tsd_t *tsd);
void tcache_stats_merge(tsdn_t *tsdn, tcache_t *tcache, arena_t *arena);
bool tcaches_create(tsd_t *tsd, unsigned *r_ind);
void tcaches_flush(tsd_t *tsd, unsigned ind);
void tcaches_destroy(tsd_t *tsd, unsigned ind);
bool tcache_boot(tsdn_t *tsdn);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
void tcache_event(tsd_t *tsd, tcache_t *tcache);
void tcache_flush(void);
bool tcache_enabled_get(void);
tcache_t *tcache_get(tsd_t *tsd, bool create);
void tcache_enabled_set(bool enabled);
void *tcache_alloc_easy(tcache_bin_t *tbin, bool *tcache_success);
void *tcache_alloc_small(tsd_t *tsd, arena_t *arena, tcache_t *tcache,
size_t size, szind_t ind, bool zero, bool slow_path);
void *tcache_alloc_large(tsd_t *tsd, arena_t *arena, tcache_t *tcache,
size_t size, szind_t ind, bool zero, bool slow_path);
void tcache_dalloc_small(tsd_t *tsd, tcache_t *tcache, void *ptr,
szind_t binind, bool slow_path);
void tcache_dalloc_large(tsd_t *tsd, tcache_t *tcache, void *ptr,
size_t size, bool slow_path);
tcache_t *tcaches_get(tsd_t *tsd, unsigned ind);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_TCACHE_C_))
JEMALLOC_INLINE void
tcache_flush(void)
{
tsd_t *tsd;
cassert(config_tcache);
tsd = tsd_fetch();
tcache_cleanup(tsd);
}
JEMALLOC_INLINE bool
tcache_enabled_get(void)
{
tsd_t *tsd;
tcache_enabled_t tcache_enabled;
cassert(config_tcache);
tsd = tsd_fetch();
tcache_enabled = tsd_tcache_enabled_get(tsd);
if (tcache_enabled == tcache_enabled_default) {
tcache_enabled = (tcache_enabled_t)opt_tcache;
tsd_tcache_enabled_set(tsd, tcache_enabled);
}
return ((bool)tcache_enabled);
}
JEMALLOC_INLINE void
tcache_enabled_set(bool enabled)
{
tsd_t *tsd;
tcache_enabled_t tcache_enabled;
cassert(config_tcache);
tsd = tsd_fetch();
tcache_enabled = (tcache_enabled_t)enabled;
tsd_tcache_enabled_set(tsd, tcache_enabled);
if (!enabled)
tcache_cleanup(tsd);
}
JEMALLOC_ALWAYS_INLINE tcache_t *
tcache_get(tsd_t *tsd, bool create)
{
tcache_t *tcache;
if (!config_tcache)
return (NULL);
tcache = tsd_tcache_get(tsd);
if (!create)
return (tcache);
if (unlikely(tcache == NULL) && tsd_nominal(tsd)) {
tcache = tcache_get_hard(tsd);
tsd_tcache_set(tsd, tcache);
}
return (tcache);
}
JEMALLOC_ALWAYS_INLINE void
tcache_event(tsd_t *tsd, tcache_t *tcache)
{
if (TCACHE_GC_INCR == 0)
return;
if (unlikely(ticker_tick(&tcache->gc_ticker)))
tcache_event_hard(tsd, tcache);
}
JEMALLOC_ALWAYS_INLINE void *
tcache_alloc_easy(tcache_bin_t *tbin, bool *tcache_success)
{
void *ret;
if (unlikely(tbin->ncached == 0)) {
tbin->low_water = -1;
*tcache_success = false;
return (NULL);
}
/*
* tcache_success (instead of ret) should be checked upon the return of
* this function. We avoid checking (ret == NULL) because there is
* never a null stored on the avail stack (which is unknown to the
* compiler), and eagerly checking ret would cause pipeline stall
* (waiting for the cacheline).
*/
*tcache_success = true;
ret = *(tbin->avail - tbin->ncached);
tbin->ncached--;
if (unlikely((int)tbin->ncached < tbin->low_water))
tbin->low_water = tbin->ncached;
return (ret);
}
JEMALLOC_ALWAYS_INLINE void *
tcache_alloc_small(tsd_t *tsd, arena_t *arena, tcache_t *tcache, size_t size,
szind_t binind, bool zero, bool slow_path)
{
void *ret;
tcache_bin_t *tbin;
bool tcache_success;
size_t usize JEMALLOC_CC_SILENCE_INIT(0);
assert(binind < NBINS);
tbin = &tcache->tbins[binind];
ret = tcache_alloc_easy(tbin, &tcache_success);
assert(tcache_success == (ret != NULL));
if (unlikely(!tcache_success)) {
bool tcache_hard_success;
arena = arena_choose(tsd, arena);
if (unlikely(arena == NULL))
return (NULL);
ret = tcache_alloc_small_hard(tsd_tsdn(tsd), arena, tcache,
tbin, binind, &tcache_hard_success);
if (tcache_hard_success == false)
return (NULL);
}
assert(ret);
/*
* Only compute usize if required. The checks in the following if
* statement are all static.
*/
if (config_prof || (slow_path && config_fill) || unlikely(zero)) {
usize = index2size(binind);
assert(tcache_salloc(tsd_tsdn(tsd), ret) == usize);
}
if (likely(!zero)) {
if (slow_path && config_fill) {
if (unlikely(opt_junk_alloc)) {
arena_alloc_junk_small(ret,
&arena_bin_info[binind], false);
} else if (unlikely(opt_zero))
memset(ret, 0, usize);
}
} else {
if (slow_path && config_fill && unlikely(opt_junk_alloc)) {
arena_alloc_junk_small(ret, &arena_bin_info[binind],
true);
}
memset(ret, 0, usize);
}
if (config_stats)
tbin->tstats.nrequests++;
if (config_prof)
tcache->prof_accumbytes += usize;
tcache_event(tsd, tcache);
return (ret);
}
JEMALLOC_ALWAYS_INLINE void *
tcache_alloc_large(tsd_t *tsd, arena_t *arena, tcache_t *tcache, size_t size,
szind_t binind, bool zero, bool slow_path)
{
void *ret;
tcache_bin_t *tbin;
bool tcache_success;
assert(binind < nhbins);
tbin = &tcache->tbins[binind];
ret = tcache_alloc_easy(tbin, &tcache_success);
assert(tcache_success == (ret != NULL));
if (unlikely(!tcache_success)) {
/*
* Only allocate one large object at a time, because it's quite
* expensive to create one and not use it.
*/
arena = arena_choose(tsd, arena);
if (unlikely(arena == NULL))
return (NULL);
ret = arena_malloc_large(tsd_tsdn(tsd), arena, binind, zero);
if (ret == NULL)
return (NULL);
} else {
size_t usize JEMALLOC_CC_SILENCE_INIT(0);
/* Only compute usize on demand */
if (config_prof || (slow_path && config_fill) ||
unlikely(zero)) {
usize = index2size(binind);
assert(usize <= tcache_maxclass);
}
if (config_prof && usize == LARGE_MINCLASS) {
arena_chunk_t *chunk =
(arena_chunk_t *)CHUNK_ADDR2BASE(ret);
size_t pageind = (((uintptr_t)ret - (uintptr_t)chunk) >>
LG_PAGE);
arena_mapbits_large_binind_set(chunk, pageind,
BININD_INVALID);
}
if (likely(!zero)) {
if (slow_path && config_fill) {
if (unlikely(opt_junk_alloc)) {
memset(ret, JEMALLOC_ALLOC_JUNK,
usize);
} else if (unlikely(opt_zero))
memset(ret, 0, usize);
}
} else
memset(ret, 0, usize);
if (config_stats)
tbin->tstats.nrequests++;
if (config_prof)
tcache->prof_accumbytes += usize;
}
tcache_event(tsd, tcache);
return (ret);
}
JEMALLOC_ALWAYS_INLINE void
tcache_dalloc_small(tsd_t *tsd, tcache_t *tcache, void *ptr, szind_t binind,
bool slow_path)
{
tcache_bin_t *tbin;
tcache_bin_info_t *tbin_info;
assert(tcache_salloc(tsd_tsdn(tsd), ptr) <= SMALL_MAXCLASS);
if (slow_path && config_fill && unlikely(opt_junk_free))
arena_dalloc_junk_small(ptr, &arena_bin_info[binind]);
tbin = &tcache->tbins[binind];
tbin_info = &tcache_bin_info[binind];
if (unlikely(tbin->ncached == tbin_info->ncached_max)) {
tcache_bin_flush_small(tsd, tcache, tbin, binind,
(tbin_info->ncached_max >> 1));
}
assert(tbin->ncached < tbin_info->ncached_max);
tbin->ncached++;
*(tbin->avail - tbin->ncached) = ptr;
tcache_event(tsd, tcache);
}
JEMALLOC_ALWAYS_INLINE void
tcache_dalloc_large(tsd_t *tsd, tcache_t *tcache, void *ptr, size_t size,
bool slow_path)
{
szind_t binind;
tcache_bin_t *tbin;
tcache_bin_info_t *tbin_info;
assert((size & PAGE_MASK) == 0);
assert(tcache_salloc(tsd_tsdn(tsd), ptr) > SMALL_MAXCLASS);
assert(tcache_salloc(tsd_tsdn(tsd), ptr) <= tcache_maxclass);
binind = size2index(size);
if (slow_path && config_fill && unlikely(opt_junk_free))
arena_dalloc_junk_large(ptr, size);
tbin = &tcache->tbins[binind];
tbin_info = &tcache_bin_info[binind];
if (unlikely(tbin->ncached == tbin_info->ncached_max)) {
tcache_bin_flush_large(tsd, tbin, binind,
(tbin_info->ncached_max >> 1), tcache);
}
assert(tbin->ncached < tbin_info->ncached_max);
tbin->ncached++;
*(tbin->avail - tbin->ncached) = ptr;
tcache_event(tsd, tcache);
}
JEMALLOC_ALWAYS_INLINE tcache_t *
tcaches_get(tsd_t *tsd, unsigned ind)
{
tcaches_t *elm = &tcaches[ind];
if (unlikely(elm->tcache == NULL)) {
elm->tcache = tcache_create(tsd_tsdn(tsd), arena_choose(tsd,
NULL));
}
return (elm->tcache);
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 13,576 | 27.887234 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/base.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
void *base_alloc(tsdn_t *tsdn, size_t size);
void base_stats_get(tsdn_t *tsdn, size_t *allocated, size_t *resident,
size_t *mapped);
bool base_boot(void);
void base_prefork(tsdn_t *tsdn);
void base_postfork_parent(tsdn_t *tsdn);
void base_postfork_child(tsdn_t *tsdn);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 911 | 34.076923 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/bitmap.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
/* Maximum bitmap bit count is 2^LG_BITMAP_MAXBITS. */
#define LG_BITMAP_MAXBITS LG_RUN_MAXREGS
#define BITMAP_MAXBITS (ZU(1) << LG_BITMAP_MAXBITS)
typedef struct bitmap_level_s bitmap_level_t;
typedef struct bitmap_info_s bitmap_info_t;
typedef unsigned long bitmap_t;
#define LG_SIZEOF_BITMAP LG_SIZEOF_LONG
/* Number of bits per group. */
#define LG_BITMAP_GROUP_NBITS (LG_SIZEOF_BITMAP + 3)
#define BITMAP_GROUP_NBITS (ZU(1) << LG_BITMAP_GROUP_NBITS)
#define BITMAP_GROUP_NBITS_MASK (BITMAP_GROUP_NBITS-1)
/*
* Do some analysis on how big the bitmap is before we use a tree. For a brute
* force linear search, if we would have to call ffs_lu() more than 2^3 times,
* use a tree instead.
*/
#if LG_BITMAP_MAXBITS - LG_BITMAP_GROUP_NBITS > 3
# define USE_TREE
#endif
/* Number of groups required to store a given number of bits. */
#define BITMAP_BITS2GROUPS(nbits) \
((nbits + BITMAP_GROUP_NBITS_MASK) >> LG_BITMAP_GROUP_NBITS)
/*
* Number of groups required at a particular level for a given number of bits.
*/
#define BITMAP_GROUPS_L0(nbits) \
BITMAP_BITS2GROUPS(nbits)
#define BITMAP_GROUPS_L1(nbits) \
BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS(nbits))
#define BITMAP_GROUPS_L2(nbits) \
BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS((nbits))))
#define BITMAP_GROUPS_L3(nbits) \
BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS( \
BITMAP_BITS2GROUPS((nbits)))))
/*
* Assuming the number of levels, number of groups required for a given number
* of bits.
*/
#define BITMAP_GROUPS_1_LEVEL(nbits) \
BITMAP_GROUPS_L0(nbits)
#define BITMAP_GROUPS_2_LEVEL(nbits) \
(BITMAP_GROUPS_1_LEVEL(nbits) + BITMAP_GROUPS_L1(nbits))
#define BITMAP_GROUPS_3_LEVEL(nbits) \
(BITMAP_GROUPS_2_LEVEL(nbits) + BITMAP_GROUPS_L2(nbits))
#define BITMAP_GROUPS_4_LEVEL(nbits) \
(BITMAP_GROUPS_3_LEVEL(nbits) + BITMAP_GROUPS_L3(nbits))
/*
* Maximum number of groups required to support LG_BITMAP_MAXBITS.
*/
#ifdef USE_TREE
#if LG_BITMAP_MAXBITS <= LG_BITMAP_GROUP_NBITS
# define BITMAP_GROUPS_MAX BITMAP_GROUPS_1_LEVEL(BITMAP_MAXBITS)
#elif LG_BITMAP_MAXBITS <= LG_BITMAP_GROUP_NBITS * 2
# define BITMAP_GROUPS_MAX BITMAP_GROUPS_2_LEVEL(BITMAP_MAXBITS)
#elif LG_BITMAP_MAXBITS <= LG_BITMAP_GROUP_NBITS * 3
# define BITMAP_GROUPS_MAX BITMAP_GROUPS_3_LEVEL(BITMAP_MAXBITS)
#elif LG_BITMAP_MAXBITS <= LG_BITMAP_GROUP_NBITS * 4
# define BITMAP_GROUPS_MAX BITMAP_GROUPS_4_LEVEL(BITMAP_MAXBITS)
#else
# error "Unsupported bitmap size"
#endif
/* Maximum number of levels possible. */
#define BITMAP_MAX_LEVELS \
(LG_BITMAP_MAXBITS / LG_SIZEOF_BITMAP) \
+ !!(LG_BITMAP_MAXBITS % LG_SIZEOF_BITMAP)
#else /* USE_TREE */
#define BITMAP_GROUPS_MAX BITMAP_BITS2GROUPS(BITMAP_MAXBITS)
#endif /* USE_TREE */
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
struct bitmap_level_s {
/* Offset of this level's groups within the array of groups. */
size_t group_offset;
};
struct bitmap_info_s {
/* Logical number of bits in bitmap (stored at bottom level). */
size_t nbits;
#ifdef USE_TREE
/* Number of levels necessary for nbits. */
unsigned nlevels;
/*
* Only the first (nlevels+1) elements are used, and levels are ordered
* bottom to top (e.g. the bottom level is stored in levels[0]).
*/
bitmap_level_t levels[BITMAP_MAX_LEVELS+1];
#else /* USE_TREE */
/* Number of groups necessary for nbits. */
size_t ngroups;
#endif /* USE_TREE */
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
void bitmap_info_init(bitmap_info_t *binfo, size_t nbits);
void bitmap_init(bitmap_t *bitmap, const bitmap_info_t *binfo);
size_t bitmap_size(const bitmap_info_t *binfo);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
bool bitmap_full(bitmap_t *bitmap, const bitmap_info_t *binfo);
bool bitmap_get(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit);
void bitmap_set(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit);
size_t bitmap_sfu(bitmap_t *bitmap, const bitmap_info_t *binfo);
void bitmap_unset(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_BITMAP_C_))
JEMALLOC_INLINE bool
bitmap_full(bitmap_t *bitmap, const bitmap_info_t *binfo)
{
#ifdef USE_TREE
size_t rgoff = binfo->levels[binfo->nlevels].group_offset - 1;
bitmap_t rg = bitmap[rgoff];
/* The bitmap is full iff the root group is 0. */
return (rg == 0);
#else
size_t i;
for (i = 0; i < binfo->ngroups; i++) {
if (bitmap[i] != 0)
return (false);
}
return (true);
#endif
}
JEMALLOC_INLINE bool
bitmap_get(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit)
{
size_t goff;
bitmap_t g;
assert(bit < binfo->nbits);
goff = bit >> LG_BITMAP_GROUP_NBITS;
g = bitmap[goff];
return (!(g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK))));
}
JEMALLOC_INLINE void
bitmap_set(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit)
{
size_t goff;
bitmap_t *gp;
bitmap_t g;
assert(bit < binfo->nbits);
assert(!bitmap_get(bitmap, binfo, bit));
goff = bit >> LG_BITMAP_GROUP_NBITS;
gp = &bitmap[goff];
g = *gp;
assert(g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK)));
g ^= ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK);
*gp = g;
assert(bitmap_get(bitmap, binfo, bit));
#ifdef USE_TREE
/* Propagate group state transitions up the tree. */
if (g == 0) {
unsigned i;
for (i = 1; i < binfo->nlevels; i++) {
bit = goff;
goff = bit >> LG_BITMAP_GROUP_NBITS;
gp = &bitmap[binfo->levels[i].group_offset + goff];
g = *gp;
assert(g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK)));
g ^= ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK);
*gp = g;
if (g != 0)
break;
}
}
#endif
}
/* sfu: set first unset. */
JEMALLOC_INLINE size_t
bitmap_sfu(bitmap_t *bitmap, const bitmap_info_t *binfo)
{
size_t bit;
bitmap_t g;
unsigned i;
assert(!bitmap_full(bitmap, binfo));
#ifdef USE_TREE
i = binfo->nlevels - 1;
g = bitmap[binfo->levels[i].group_offset];
bit = ffs_lu(g) - 1;
while (i > 0) {
i--;
g = bitmap[binfo->levels[i].group_offset + bit];
bit = (bit << LG_BITMAP_GROUP_NBITS) + (ffs_lu(g) - 1);
}
#else
i = 0;
g = bitmap[0];
while ((bit = ffs_lu(g)) == 0) {
i++;
g = bitmap[i];
}
bit = (i << LG_BITMAP_GROUP_NBITS) + (bit - 1);
#endif
bitmap_set(bitmap, binfo, bit);
return (bit);
}
JEMALLOC_INLINE void
bitmap_unset(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit)
{
size_t goff;
bitmap_t *gp;
bitmap_t g;
UNUSED bool propagate;
assert(bit < binfo->nbits);
assert(bitmap_get(bitmap, binfo, bit));
goff = bit >> LG_BITMAP_GROUP_NBITS;
gp = &bitmap[goff];
g = *gp;
propagate = (g == 0);
assert((g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK))) == 0);
g ^= ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK);
*gp = g;
assert(!bitmap_get(bitmap, binfo, bit));
#ifdef USE_TREE
/* Propagate group state transitions up the tree. */
if (propagate) {
unsigned i;
for (i = 1; i < binfo->nlevels; i++) {
bit = goff;
goff = bit >> LG_BITMAP_GROUP_NBITS;
gp = &bitmap[binfo->levels[i].group_offset + goff];
g = *gp;
propagate = (g == 0);
assert((g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK)))
== 0);
g ^= ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK);
*gp = g;
if (!propagate)
break;
}
}
#endif /* USE_TREE */
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 7,819 | 27.436364 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/ticker.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
typedef struct ticker_s ticker_t;
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
struct ticker_s {
int32_t tick;
int32_t nticks;
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
void ticker_init(ticker_t *ticker, int32_t nticks);
void ticker_copy(ticker_t *ticker, const ticker_t *other);
int32_t ticker_read(const ticker_t *ticker);
bool ticker_ticks(ticker_t *ticker, int32_t nticks);
bool ticker_tick(ticker_t *ticker);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_TICKER_C_))
JEMALLOC_INLINE void
ticker_init(ticker_t *ticker, int32_t nticks)
{
ticker->tick = nticks;
ticker->nticks = nticks;
}
JEMALLOC_INLINE void
ticker_copy(ticker_t *ticker, const ticker_t *other)
{
*ticker = *other;
}
JEMALLOC_INLINE int32_t
ticker_read(const ticker_t *ticker)
{
return (ticker->tick);
}
JEMALLOC_INLINE bool
ticker_ticks(ticker_t *ticker, int32_t nticks)
{
if (unlikely(ticker->tick < nticks)) {
ticker->tick = ticker->nticks;
return (true);
}
ticker->tick -= nticks;
return(false);
}
JEMALLOC_INLINE bool
ticker_tick(ticker_t *ticker)
{
return (ticker_ticks(ticker, 1));
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 1,698 | 21.355263 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/smoothstep.sh
|
#!/bin/sh
#
# Generate a discrete lookup table for a sigmoid function in the smoothstep
# family (https://en.wikipedia.org/wiki/Smoothstep), where the lookup table
# entries correspond to x in [1/nsteps, 2/nsteps, ..., nsteps/nsteps]. Encode
# the entries using a binary fixed point representation.
#
# Usage: smoothstep.sh <variant> <nsteps> <bfp> <xprec> <yprec>
#
# <variant> is in {smooth, smoother, smoothest}.
# <nsteps> must be greater than zero.
# <bfp> must be in [0..62]; reasonable values are roughly [10..30].
# <xprec> is x decimal precision.
# <yprec> is y decimal precision.
#set -x
cmd="sh smoothstep.sh $*"
variant=$1
nsteps=$2
bfp=$3
xprec=$4
yprec=$5
case "${variant}" in
smooth)
;;
smoother)
;;
smoothest)
;;
*)
echo "Unsupported variant"
exit 1
;;
esac
smooth() {
step=$1
y=`echo ${yprec} k ${step} ${nsteps} / sx _2 lx 3 ^ '*' 3 lx 2 ^ '*' + p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g'`
h=`echo ${yprec} k 2 ${bfp} ^ ${y} '*' p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g' | tr '.' ' ' | awk '{print $1}' `
}
smoother() {
step=$1
y=`echo ${yprec} k ${step} ${nsteps} / sx 6 lx 5 ^ '*' _15 lx 4 ^ '*' + 10 lx 3 ^ '*' + p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g'`
h=`echo ${yprec} k 2 ${bfp} ^ ${y} '*' p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g' | tr '.' ' ' | awk '{print $1}' `
}
smoothest() {
step=$1
y=`echo ${yprec} k ${step} ${nsteps} / sx _20 lx 7 ^ '*' 70 lx 6 ^ '*' + _84 lx 5 ^ '*' + 35 lx 4 ^ '*' + p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g'`
h=`echo ${yprec} k 2 ${bfp} ^ ${y} '*' p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g' | tr '.' ' ' | awk '{print $1}' `
}
cat <<EOF
/*
* This file was generated by the following command:
* $cmd
*/
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
/*
* This header defines a precomputed table based on the smoothstep family of
* sigmoidal curves (https://en.wikipedia.org/wiki/Smoothstep) that grow from 0
* to 1 in 0 <= x <= 1. The table is stored as integer fixed point values so
* that floating point math can be avoided.
*
* 3 2
* smoothstep(x) = -2x + 3x
*
* 5 4 3
* smootherstep(x) = 6x - 15x + 10x
*
* 7 6 5 4
* smootheststep(x) = -20x + 70x - 84x + 35x
*/
#define SMOOTHSTEP_VARIANT "${variant}"
#define SMOOTHSTEP_NSTEPS ${nsteps}
#define SMOOTHSTEP_BFP ${bfp}
#define SMOOTHSTEP \\
/* STEP(step, h, x, y) */ \\
EOF
s=1
while [ $s -le $nsteps ] ; do
$variant ${s}
x=`echo ${xprec} k ${s} ${nsteps} / p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g'`
printf ' STEP(%4d, UINT64_C(0x%016x), %s, %s) \\\n' ${s} ${h} ${x} ${y}
s=$((s+1))
done
echo
cat <<EOF
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
EOF
| 3,405 | 28.362069 | 154 |
sh
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/prng.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
/*
* Simple linear congruential pseudo-random number generator:
*
* prng(y) = (a*x + c) % m
*
* where the following constants ensure maximal period:
*
* a == Odd number (relatively prime to 2^n), and (a-1) is a multiple of 4.
* c == Odd number (relatively prime to 2^n).
* m == 2^32
*
* See Knuth's TAOCP 3rd Ed., Vol. 2, pg. 17 for details on these constraints.
*
* This choice of m has the disadvantage that the quality of the bits is
* proportional to bit position. For example, the lowest bit has a cycle of 2,
* the next has a cycle of 4, etc. For this reason, we prefer to use the upper
* bits.
*/
#define PRNG_A_32 UINT32_C(1103515241)
#define PRNG_C_32 UINT32_C(12347)
#define PRNG_A_64 UINT64_C(6364136223846793005)
#define PRNG_C_64 UINT64_C(1442695040888963407)
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
uint32_t prng_state_next_u32(uint32_t state);
uint64_t prng_state_next_u64(uint64_t state);
size_t prng_state_next_zu(size_t state);
uint32_t prng_lg_range_u32(uint32_t *state, unsigned lg_range,
bool atomic);
uint64_t prng_lg_range_u64(uint64_t *state, unsigned lg_range);
size_t prng_lg_range_zu(size_t *state, unsigned lg_range, bool atomic);
uint32_t prng_range_u32(uint32_t *state, uint32_t range, bool atomic);
uint64_t prng_range_u64(uint64_t *state, uint64_t range);
size_t prng_range_zu(size_t *state, size_t range, bool atomic);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_PRNG_C_))
JEMALLOC_ALWAYS_INLINE uint32_t
prng_state_next_u32(uint32_t state)
{
return ((state * PRNG_A_32) + PRNG_C_32);
}
JEMALLOC_ALWAYS_INLINE uint64_t
prng_state_next_u64(uint64_t state)
{
return ((state * PRNG_A_64) + PRNG_C_64);
}
JEMALLOC_ALWAYS_INLINE size_t
prng_state_next_zu(size_t state)
{
#if LG_SIZEOF_PTR == 2
return ((state * PRNG_A_32) + PRNG_C_32);
#elif LG_SIZEOF_PTR == 3
return ((state * PRNG_A_64) + PRNG_C_64);
#else
#error Unsupported pointer size
#endif
}
JEMALLOC_ALWAYS_INLINE uint32_t
prng_lg_range_u32(uint32_t *state, unsigned lg_range, bool atomic)
{
uint32_t ret, state1;
assert(lg_range > 0);
assert(lg_range <= 32);
if (atomic) {
uint32_t state0;
do {
state0 = atomic_read_uint32(state);
state1 = prng_state_next_u32(state0);
} while (atomic_cas_uint32(state, state0, state1));
} else {
state1 = prng_state_next_u32(*state);
*state = state1;
}
ret = state1 >> (32 - lg_range);
return (ret);
}
/* 64-bit atomic operations cannot be supported on all relevant platforms. */
JEMALLOC_ALWAYS_INLINE uint64_t
prng_lg_range_u64(uint64_t *state, unsigned lg_range)
{
uint64_t ret, state1;
assert(lg_range > 0);
assert(lg_range <= 64);
state1 = prng_state_next_u64(*state);
*state = state1;
ret = state1 >> (64 - lg_range);
return (ret);
}
JEMALLOC_ALWAYS_INLINE size_t
prng_lg_range_zu(size_t *state, unsigned lg_range, bool atomic)
{
size_t ret, state1;
assert(lg_range > 0);
assert(lg_range <= ZU(1) << (3 + LG_SIZEOF_PTR));
if (atomic) {
size_t state0;
do {
state0 = atomic_read_z(state);
state1 = prng_state_next_zu(state0);
} while (atomic_cas_z(state, state0, state1));
} else {
state1 = prng_state_next_zu(*state);
*state = state1;
}
ret = state1 >> ((ZU(1) << (3 + LG_SIZEOF_PTR)) - lg_range);
return (ret);
}
JEMALLOC_ALWAYS_INLINE uint32_t
prng_range_u32(uint32_t *state, uint32_t range, bool atomic)
{
uint32_t ret;
unsigned lg_range;
assert(range > 1);
/* Compute the ceiling of lg(range). */
lg_range = ffs_u32(pow2_ceil_u32(range)) - 1;
/* Generate a result in [0..range) via repeated trial. */
do {
ret = prng_lg_range_u32(state, lg_range, atomic);
} while (ret >= range);
return (ret);
}
JEMALLOC_ALWAYS_INLINE uint64_t
prng_range_u64(uint64_t *state, uint64_t range)
{
uint64_t ret;
unsigned lg_range;
assert(range > 1);
/* Compute the ceiling of lg(range). */
lg_range = ffs_u64(pow2_ceil_u64(range)) - 1;
/* Generate a result in [0..range) via repeated trial. */
do {
ret = prng_lg_range_u64(state, lg_range);
} while (ret >= range);
return (ret);
}
JEMALLOC_ALWAYS_INLINE size_t
prng_range_zu(size_t *state, size_t range, bool atomic)
{
size_t ret;
unsigned lg_range;
assert(range > 1);
/* Compute the ceiling of lg(range). */
lg_range = ffs_u64(pow2_ceil_u64(range)) - 1;
/* Generate a result in [0..range) via repeated trial. */
do {
ret = prng_lg_range_zu(state, lg_range, atomic);
} while (ret >= range);
return (ret);
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 5,087 | 23.461538 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/ph.h
|
/*
* A Pairing Heap implementation.
*
* "The Pairing Heap: A New Form of Self-Adjusting Heap"
* https://www.cs.cmu.edu/~sleator/papers/pairing-heaps.pdf
*
* With auxiliary twopass list, described in a follow on paper.
*
* "Pairing Heaps: Experiments and Analysis"
* http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.106.2988&rep=rep1&type=pdf
*
*******************************************************************************
*/
#ifndef PH_H_
#define PH_H_
/* Node structure. */
#define phn(a_type) \
struct { \
a_type *phn_prev; \
a_type *phn_next; \
a_type *phn_lchild; \
}
/* Root structure. */
#define ph(a_type) \
struct { \
a_type *ph_root; \
}
/* Internal utility macros. */
#define phn_lchild_get(a_type, a_field, a_phn) \
(a_phn->a_field.phn_lchild)
#define phn_lchild_set(a_type, a_field, a_phn, a_lchild) do { \
a_phn->a_field.phn_lchild = a_lchild; \
} while (0)
#define phn_next_get(a_type, a_field, a_phn) \
(a_phn->a_field.phn_next)
#define phn_prev_set(a_type, a_field, a_phn, a_prev) do { \
a_phn->a_field.phn_prev = a_prev; \
} while (0)
#define phn_prev_get(a_type, a_field, a_phn) \
(a_phn->a_field.phn_prev)
#define phn_next_set(a_type, a_field, a_phn, a_next) do { \
a_phn->a_field.phn_next = a_next; \
} while (0)
#define phn_merge_ordered(a_type, a_field, a_phn0, a_phn1, a_cmp) do { \
a_type *phn0child; \
\
assert(a_phn0 != NULL); \
assert(a_phn1 != NULL); \
assert(a_cmp(a_phn0, a_phn1) <= 0); \
\
phn_prev_set(a_type, a_field, a_phn1, a_phn0); \
phn0child = phn_lchild_get(a_type, a_field, a_phn0); \
phn_next_set(a_type, a_field, a_phn1, phn0child); \
if (phn0child != NULL) \
phn_prev_set(a_type, a_field, phn0child, a_phn1); \
phn_lchild_set(a_type, a_field, a_phn0, a_phn1); \
} while (0)
#define phn_merge(a_type, a_field, a_phn0, a_phn1, a_cmp, r_phn) do { \
if (a_phn0 == NULL) \
r_phn = a_phn1; \
else if (a_phn1 == NULL) \
r_phn = a_phn0; \
else if (a_cmp(a_phn0, a_phn1) < 0) { \
phn_merge_ordered(a_type, a_field, a_phn0, a_phn1, \
a_cmp); \
r_phn = a_phn0; \
} else { \
phn_merge_ordered(a_type, a_field, a_phn1, a_phn0, \
a_cmp); \
r_phn = a_phn1; \
} \
} while (0)
#define ph_merge_siblings(a_type, a_field, a_phn, a_cmp, r_phn) do { \
a_type *head = NULL; \
a_type *tail = NULL; \
a_type *phn0 = a_phn; \
a_type *phn1 = phn_next_get(a_type, a_field, phn0); \
\
/* \
* Multipass merge, wherein the first two elements of a FIFO \
* are repeatedly merged, and each result is appended to the \
* singly linked FIFO, until the FIFO contains only a single \
* element. We start with a sibling list but no reference to \
* its tail, so we do a single pass over the sibling list to \
* populate the FIFO. \
*/ \
if (phn1 != NULL) { \
a_type *phnrest = phn_next_get(a_type, a_field, phn1); \
if (phnrest != NULL) \
phn_prev_set(a_type, a_field, phnrest, NULL); \
phn_prev_set(a_type, a_field, phn0, NULL); \
phn_next_set(a_type, a_field, phn0, NULL); \
phn_prev_set(a_type, a_field, phn1, NULL); \
phn_next_set(a_type, a_field, phn1, NULL); \
phn_merge(a_type, a_field, phn0, phn1, a_cmp, phn0); \
head = tail = phn0; \
phn0 = phnrest; \
while (phn0 != NULL) { \
phn1 = phn_next_get(a_type, a_field, phn0); \
if (phn1 != NULL) { \
phnrest = phn_next_get(a_type, a_field, \
phn1); \
if (phnrest != NULL) { \
phn_prev_set(a_type, a_field, \
phnrest, NULL); \
} \
phn_prev_set(a_type, a_field, phn0, \
NULL); \
phn_next_set(a_type, a_field, phn0, \
NULL); \
phn_prev_set(a_type, a_field, phn1, \
NULL); \
phn_next_set(a_type, a_field, phn1, \
NULL); \
phn_merge(a_type, a_field, phn0, phn1, \
a_cmp, phn0); \
phn_next_set(a_type, a_field, tail, \
phn0); \
tail = phn0; \
phn0 = phnrest; \
} else { \
phn_next_set(a_type, a_field, tail, \
phn0); \
tail = phn0; \
phn0 = NULL; \
} \
} \
phn0 = head; \
phn1 = phn_next_get(a_type, a_field, phn0); \
if (phn1 != NULL) { \
while (true) { \
head = phn_next_get(a_type, a_field, \
phn1); \
assert(phn_prev_get(a_type, a_field, \
phn0) == NULL); \
phn_next_set(a_type, a_field, phn0, \
NULL); \
assert(phn_prev_get(a_type, a_field, \
phn1) == NULL); \
phn_next_set(a_type, a_field, phn1, \
NULL); \
phn_merge(a_type, a_field, phn0, phn1, \
a_cmp, phn0); \
if (head == NULL) \
break; \
phn_next_set(a_type, a_field, tail, \
phn0); \
tail = phn0; \
phn0 = head; \
phn1 = phn_next_get(a_type, a_field, \
phn0); \
} \
} \
} \
r_phn = phn0; \
} while (0)
#define ph_merge_aux(a_type, a_field, a_ph, a_cmp) do { \
a_type *phn = phn_next_get(a_type, a_field, a_ph->ph_root); \
if (phn != NULL) { \
phn_prev_set(a_type, a_field, a_ph->ph_root, NULL); \
phn_next_set(a_type, a_field, a_ph->ph_root, NULL); \
phn_prev_set(a_type, a_field, phn, NULL); \
ph_merge_siblings(a_type, a_field, phn, a_cmp, phn); \
assert(phn_next_get(a_type, a_field, phn) == NULL); \
phn_merge(a_type, a_field, a_ph->ph_root, phn, a_cmp, \
a_ph->ph_root); \
} \
} while (0)
#define ph_merge_children(a_type, a_field, a_phn, a_cmp, r_phn) do { \
a_type *lchild = phn_lchild_get(a_type, a_field, a_phn); \
if (lchild == NULL) \
r_phn = NULL; \
else { \
ph_merge_siblings(a_type, a_field, lchild, a_cmp, \
r_phn); \
} \
} while (0)
/*
* The ph_proto() macro generates function prototypes that correspond to the
* functions generated by an equivalently parameterized call to ph_gen().
*/
#define ph_proto(a_attr, a_prefix, a_ph_type, a_type) \
a_attr void a_prefix##new(a_ph_type *ph); \
a_attr bool a_prefix##empty(a_ph_type *ph); \
a_attr a_type *a_prefix##first(a_ph_type *ph); \
a_attr void a_prefix##insert(a_ph_type *ph, a_type *phn); \
a_attr a_type *a_prefix##remove_first(a_ph_type *ph); \
a_attr void a_prefix##remove(a_ph_type *ph, a_type *phn);
/*
* The ph_gen() macro generates a type-specific pairing heap implementation,
* based on the above cpp macros.
*/
#define ph_gen(a_attr, a_prefix, a_ph_type, a_type, a_field, a_cmp) \
a_attr void \
a_prefix##new(a_ph_type *ph) \
{ \
\
memset(ph, 0, sizeof(ph(a_type))); \
} \
a_attr bool \
a_prefix##empty(a_ph_type *ph) \
{ \
\
return (ph->ph_root == NULL); \
} \
a_attr a_type * \
a_prefix##first(a_ph_type *ph) \
{ \
\
if (ph->ph_root == NULL) \
return (NULL); \
ph_merge_aux(a_type, a_field, ph, a_cmp); \
return (ph->ph_root); \
} \
a_attr void \
a_prefix##insert(a_ph_type *ph, a_type *phn) \
{ \
\
memset(&phn->a_field, 0, sizeof(phn(a_type))); \
\
/* \
* Treat the root as an aux list during insertion, and lazily \
* merge during a_prefix##remove_first(). For elements that \
* are inserted, then removed via a_prefix##remove() before the \
* aux list is ever processed, this makes insert/remove \
* constant-time, whereas eager merging would make insert \
* O(log n). \
*/ \
if (ph->ph_root == NULL) \
ph->ph_root = phn; \
else { \
phn_next_set(a_type, a_field, phn, phn_next_get(a_type, \
a_field, ph->ph_root)); \
if (phn_next_get(a_type, a_field, ph->ph_root) != \
NULL) { \
phn_prev_set(a_type, a_field, \
phn_next_get(a_type, a_field, ph->ph_root), \
phn); \
} \
phn_prev_set(a_type, a_field, phn, ph->ph_root); \
phn_next_set(a_type, a_field, ph->ph_root, phn); \
} \
} \
a_attr a_type * \
a_prefix##remove_first(a_ph_type *ph) \
{ \
a_type *ret; \
\
if (ph->ph_root == NULL) \
return (NULL); \
ph_merge_aux(a_type, a_field, ph, a_cmp); \
\
ret = ph->ph_root; \
\
ph_merge_children(a_type, a_field, ph->ph_root, a_cmp, \
ph->ph_root); \
\
return (ret); \
} \
a_attr void \
a_prefix##remove(a_ph_type *ph, a_type *phn) \
{ \
a_type *replace, *parent; \
\
/* \
* We can delete from aux list without merging it, but we need \
* to merge if we are dealing with the root node. \
*/ \
if (ph->ph_root == phn) { \
ph_merge_aux(a_type, a_field, ph, a_cmp); \
if (ph->ph_root == phn) { \
ph_merge_children(a_type, a_field, ph->ph_root, \
a_cmp, ph->ph_root); \
return; \
} \
} \
\
/* Get parent (if phn is leftmost child) before mutating. */ \
if ((parent = phn_prev_get(a_type, a_field, phn)) != NULL) { \
if (phn_lchild_get(a_type, a_field, parent) != phn) \
parent = NULL; \
} \
/* Find a possible replacement node, and link to parent. */ \
ph_merge_children(a_type, a_field, phn, a_cmp, replace); \
/* Set next/prev for sibling linked list. */ \
if (replace != NULL) { \
if (parent != NULL) { \
phn_prev_set(a_type, a_field, replace, parent); \
phn_lchild_set(a_type, a_field, parent, \
replace); \
} else { \
phn_prev_set(a_type, a_field, replace, \
phn_prev_get(a_type, a_field, phn)); \
if (phn_prev_get(a_type, a_field, phn) != \
NULL) { \
phn_next_set(a_type, a_field, \
phn_prev_get(a_type, a_field, phn), \
replace); \
} \
} \
phn_next_set(a_type, a_field, replace, \
phn_next_get(a_type, a_field, phn)); \
if (phn_next_get(a_type, a_field, phn) != NULL) { \
phn_prev_set(a_type, a_field, \
phn_next_get(a_type, a_field, phn), \
replace); \
} \
} else { \
if (parent != NULL) { \
a_type *next = phn_next_get(a_type, a_field, \
phn); \
phn_lchild_set(a_type, a_field, parent, next); \
if (next != NULL) { \
phn_prev_set(a_type, a_field, next, \
parent); \
} \
} else { \
assert(phn_prev_get(a_type, a_field, phn) != \
NULL); \
phn_next_set(a_type, a_field, \
phn_prev_get(a_type, a_field, phn), \
phn_next_get(a_type, a_field, phn)); \
} \
if (phn_next_get(a_type, a_field, phn) != NULL) { \
phn_prev_set(a_type, a_field, \
phn_next_get(a_type, a_field, phn), \
phn_prev_get(a_type, a_field, phn)); \
} \
} \
}
#endif /* PH_H_ */
| 10,965 | 30.693642 | 86 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/huge.h
|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
void *huge_malloc(tsdn_t *tsdn, arena_t *arena, size_t usize, bool zero);
void *huge_palloc(tsdn_t *tsdn, arena_t *arena, size_t usize,
size_t alignment, bool zero);
bool huge_ralloc_no_move(tsdn_t *tsdn, void *ptr, size_t oldsize,
size_t usize_min, size_t usize_max, bool zero);
void *huge_ralloc(tsd_t *tsd, arena_t *arena, void *ptr, size_t oldsize,
size_t usize, size_t alignment, bool zero, tcache_t *tcache);
#ifdef JEMALLOC_JET
typedef void (huge_dalloc_junk_t)(void *, size_t);
extern huge_dalloc_junk_t *huge_dalloc_junk;
#endif
void huge_dalloc(tsdn_t *tsdn, void *ptr);
arena_t *huge_aalloc(const void *ptr);
size_t huge_salloc(tsdn_t *tsdn, const void *ptr);
prof_tctx_t *huge_prof_tctx_get(tsdn_t *tsdn, const void *ptr);
void huge_prof_tctx_set(tsdn_t *tsdn, const void *ptr, prof_tctx_t *tctx);
void huge_prof_tctx_reset(tsdn_t *tsdn, const void *ptr);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
| 1,518 | 41.194444 | 80 |
h
|
null |
NearPMSW-main/nearpmMDsync/shadow/redis-NDP-sd/deps/jemalloc/include/jemalloc/internal/assert.h
|
/*
* Define a custom assert() in order to reduce the chances of deadlock during
* assertion failure.
*/
#ifndef assert
#define assert(e) do { \
if (unlikely(config_debug && !(e))) { \
malloc_printf( \
"<jemalloc>: %s:%d: Failed assertion: \"%s\"\n", \
__FILE__, __LINE__, #e); \
abort(); \
} \
} while (0)
#endif
#ifndef not_reached
#define not_reached() do { \
if (config_debug) { \
malloc_printf( \
"<jemalloc>: %s:%d: Unreachable code reached\n", \
__FILE__, __LINE__); \
abort(); \
} \
unreachable(); \
} while (0)
#endif
#ifndef not_implemented
#define not_implemented() do { \
if (config_debug) { \
malloc_printf("<jemalloc>: %s:%d: Not implemented\n", \
__FILE__, __LINE__); \
abort(); \
} \
} while (0)
#endif
#ifndef assert_not_implemented
#define assert_not_implemented(e) do { \
if (unlikely(config_debug && !(e))) \
not_implemented(); \
} while (0)
#endif
| 1,029 | 21.391304 | 77 |
h
|
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