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null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmem.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2019, Intel Corporation */
/*
* libpmem.h -- definitions of libpmem entry points
*
* This library provides support for programming with persistent memory (pmem).
*
* libpmem provides support for using raw pmem directly.
*
* See libpmem(7) for details.
*/
#ifndef LIBPMEM_H
#define LIBPMEM_H 1
#include <sys/types.h>
#ifdef _WIN32
#include <pmemcompat.h>
#ifndef PMDK_UTF8_API
#define pmem_map_file pmem_map_fileW
#define pmem_check_version pmem_check_versionW
#define pmem_errormsg pmem_errormsgW
#else
#define pmem_map_file pmem_map_fileU
#define pmem_check_version pmem_check_versionU
#define pmem_errormsg pmem_errormsgU
#endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
/*
* This limit is set arbitrary to incorporate a pool header and required
* alignment plus supply.
*/
#define PMEM_MIN_PART ((size_t)(1024 * 1024 * 2)) /* 2 MiB */
/*
* flags supported by pmem_map_file()
*/
#define PMEM_FILE_CREATE (1 << 0)
#define PMEM_FILE_EXCL (1 << 1)
#define PMEM_FILE_SPARSE (1 << 2)
#define PMEM_FILE_TMPFILE (1 << 3)
#ifndef _WIN32
void *pmem_map_file(const char *path, size_t len, int flags, mode_t mode,
size_t *mapped_lenp, int *is_pmemp);
#else
void *pmem_map_fileU(const char *path, size_t len, int flags, mode_t mode,
size_t *mapped_lenp, int *is_pmemp);
void *pmem_map_fileW(const wchar_t *path, size_t len, int flags, mode_t mode,
size_t *mapped_lenp, int *is_pmemp);
#endif
int pmem_unmap(void *addr, size_t len);
int pmem_is_pmem(const void *addr, size_t len);
void pmem_persist(const void *addr, size_t len);
int pmem_msync(const void *addr, size_t len);
int pmem_has_auto_flush(void);
void pmem_flush(const void *addr, size_t len);
void pmem_deep_flush(const void *addr, size_t len);
int pmem_deep_drain(const void *addr, size_t len);
int pmem_deep_persist(const void *addr, size_t len);
void pmem_drain(void);
int pmem_has_hw_drain(void);
void *pmem_memmove_persist(void *pmemdest, const void *src, size_t len);
void *pmem_memcpy_persist(void *pmemdest, const void *src, size_t len);
void *pmem_memset_persist(void *pmemdest, int c, size_t len);
void *pmem_memmove_nodrain(void *pmemdest, const void *src, size_t len);
void *pmem_memcpy_nodrain(void *pmemdest, const void *src, size_t len);
void *pmem_memset_nodrain(void *pmemdest, int c, size_t len);
#define PMEM_F_MEM_NODRAIN (1U << 0)
#define PMEM_F_MEM_NONTEMPORAL (1U << 1)
#define PMEM_F_MEM_TEMPORAL (1U << 2)
#define PMEM_F_MEM_WC (1U << 3)
#define PMEM_F_MEM_WB (1U << 4)
#define PMEM_F_MEM_NOFLUSH (1U << 5)
#define PMEM_F_MEM_VALID_FLAGS (PMEM_F_MEM_NODRAIN | \
PMEM_F_MEM_NONTEMPORAL | \
PMEM_F_MEM_TEMPORAL | \
PMEM_F_MEM_WC | \
PMEM_F_MEM_WB | \
PMEM_F_MEM_NOFLUSH)
void *pmem_memmove(void *pmemdest, const void *src, size_t len, unsigned flags);
void *pmem_memcpy(void *pmemdest, const void *src, size_t len, unsigned flags);
void *pmem_memset(void *pmemdest, int c, size_t len, unsigned flags);
/*
* PMEM_MAJOR_VERSION and PMEM_MINOR_VERSION provide the current version of the
* libpmem API as provided by this header file. Applications can verify that
* the version available at run-time is compatible with the version used at
* compile-time by passing these defines to pmem_check_version().
*/
#define PMEM_MAJOR_VERSION 1
#define PMEM_MINOR_VERSION 1
#ifndef _WIN32
const char *pmem_check_version(unsigned major_required,
unsigned minor_required);
#else
const char *pmem_check_versionU(unsigned major_required,
unsigned minor_required);
const wchar_t *pmem_check_versionW(unsigned major_required,
unsigned minor_required);
#endif
#ifndef _WIN32
const char *pmem_errormsg(void);
#else
const char *pmem_errormsgU(void);
const wchar_t *pmem_errormsgW(void);
#endif
#ifdef __cplusplus
}
#endif
#endif /* libpmem.h */
| 3,829 | 28.015152 | 80 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmem2.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2019-2020, Intel Corporation */
/*
* libpmem2.h -- definitions of libpmem2 entry points (EXPERIMENTAL)
*
* This library provides support for programming with persistent memory (pmem).
*
* libpmem2 provides support for using raw pmem directly.
*
* See libpmem2(7) for details.
*/
#ifndef LIBPMEM2_H
#define LIBPMEM2_H 1
#include <stddef.h>
#include <stdint.h>
#ifdef _WIN32
#include <pmemcompat.h>
#ifndef PMDK_UTF8_API
#define pmem2_source_device_id pmem2_source_device_idW
#define pmem2_errormsg pmem2_errormsgW
#define pmem2_perror pmem2_perrorW
#else
#define pmem2_source_device_id pmem2_source_device_idU
#define pmem2_errormsg pmem2_errormsgU
#define pmem2_perror pmem2_perrorU
#endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
#define PMEM2_E_UNKNOWN (-100000)
#define PMEM2_E_NOSUPP (-100001)
#define PMEM2_E_FILE_HANDLE_NOT_SET (-100003)
#define PMEM2_E_INVALID_FILE_HANDLE (-100004)
#define PMEM2_E_INVALID_FILE_TYPE (-100005)
#define PMEM2_E_MAP_RANGE (-100006)
#define PMEM2_E_MAPPING_EXISTS (-100007)
#define PMEM2_E_GRANULARITY_NOT_SET (-100008)
#define PMEM2_E_GRANULARITY_NOT_SUPPORTED (-100009)
#define PMEM2_E_OFFSET_OUT_OF_RANGE (-100010)
#define PMEM2_E_OFFSET_UNALIGNED (-100011)
#define PMEM2_E_INVALID_ALIGNMENT_FORMAT (-100012)
#define PMEM2_E_INVALID_ALIGNMENT_VALUE (-100013)
#define PMEM2_E_INVALID_SIZE_FORMAT (-100014)
#define PMEM2_E_LENGTH_UNALIGNED (-100015)
#define PMEM2_E_MAPPING_NOT_FOUND (-100016)
#define PMEM2_E_BUFFER_TOO_SMALL (-100017)
#define PMEM2_E_SOURCE_EMPTY (-100018)
#define PMEM2_E_INVALID_SHARING_VALUE (-100019)
#define PMEM2_E_SRC_DEVDAX_PRIVATE (-100020)
#define PMEM2_E_INVALID_ADDRESS_REQUEST_TYPE (-100021)
#define PMEM2_E_ADDRESS_UNALIGNED (-100022)
#define PMEM2_E_ADDRESS_NULL (-100023)
#define PMEM2_E_DEEP_FLUSH_RANGE (-100024)
#define PMEM2_E_INVALID_REGION_FORMAT (-100025)
#define PMEM2_E_DAX_REGION_NOT_FOUND (-100026)
#define PMEM2_E_INVALID_DEV_FORMAT (-100027)
#define PMEM2_E_CANNOT_READ_BOUNDS (-100028)
#define PMEM2_E_NO_BAD_BLOCK_FOUND (-100029)
#define PMEM2_E_LENGTH_OUT_OF_RANGE (-100030)
#define PMEM2_E_INVALID_PROT_FLAG (-100031)
#define PMEM2_E_NO_ACCESS (-100032)
/* source setup */
struct pmem2_source;
int pmem2_source_from_fd(struct pmem2_source **src, int fd);
int pmem2_source_from_anon(struct pmem2_source **src, size_t size);
#ifdef _WIN32
int pmem2_source_from_handle(struct pmem2_source **src, HANDLE handle);
#endif
int pmem2_source_size(const struct pmem2_source *src, size_t *size);
int pmem2_source_alignment(const struct pmem2_source *src,
size_t *alignment);
int pmem2_source_delete(struct pmem2_source **src);
/* vm reservation setup */
struct pmem2_vm_reservation;
int pmem2_vm_reservation_new(struct pmem2_vm_reservation **rsv,
size_t size, void *address);
int pmem2_vm_reservation_delete(struct pmem2_vm_reservation **rsv);
/* config setup */
struct pmem2_config;
int pmem2_config_new(struct pmem2_config **cfg);
int pmem2_config_delete(struct pmem2_config **cfg);
enum pmem2_granularity {
PMEM2_GRANULARITY_BYTE,
PMEM2_GRANULARITY_CACHE_LINE,
PMEM2_GRANULARITY_PAGE,
};
int pmem2_config_set_required_store_granularity(struct pmem2_config *cfg,
enum pmem2_granularity g);
int pmem2_config_set_offset(struct pmem2_config *cfg, size_t offset);
int pmem2_config_set_length(struct pmem2_config *cfg, size_t length);
enum pmem2_sharing_type {
PMEM2_SHARED,
PMEM2_PRIVATE,
};
int pmem2_config_set_sharing(struct pmem2_config *cfg,
enum pmem2_sharing_type type);
#define PMEM2_PROT_EXEC (1U << 29)
#define PMEM2_PROT_READ (1U << 30)
#define PMEM2_PROT_WRITE (1U << 31)
#define PMEM2_PROT_NONE 0
int pmem2_config_set_protection(struct pmem2_config *cfg,
unsigned prot);
enum pmem2_address_request_type {
PMEM2_ADDRESS_FIXED_REPLACE = 1,
PMEM2_ADDRESS_FIXED_NOREPLACE = 2,
};
int pmem2_config_set_address(struct pmem2_config *cfg, void *addr,
enum pmem2_address_request_type request_type);
int pmem2_config_set_vm_reservation(struct pmem2_config *cfg,
struct pmem2_vm_reservation *rsv, size_t offset);
void pmem2_config_clear_address(struct pmem2_config *cfg);
/* mapping */
struct pmem2_map;
int pmem2_map(const struct pmem2_config *cfg, const struct pmem2_source *src,
struct pmem2_map **map_ptr);
int pmem2_unmap(struct pmem2_map **map_ptr);
void *pmem2_map_get_address(struct pmem2_map *map);
size_t pmem2_map_get_size(struct pmem2_map *map);
enum pmem2_granularity pmem2_map_get_store_granularity(struct pmem2_map *map);
/* flushing */
typedef void (*pmem2_persist_fn)(const void *ptr, size_t size);
typedef void (*pmem2_flush_fn)(const void *ptr, size_t size);
typedef void (*pmem2_drain_fn)(void);
pmem2_persist_fn pmem2_get_persist_fn(struct pmem2_map *map);
pmem2_flush_fn pmem2_get_flush_fn(struct pmem2_map *map);
pmem2_drain_fn pmem2_get_drain_fn(struct pmem2_map *map);
#define PMEM2_F_MEM_NODRAIN (1U << 0)
#define PMEM2_F_MEM_NONTEMPORAL (1U << 1)
#define PMEM2_F_MEM_TEMPORAL (1U << 2)
#define PMEM2_F_MEM_WC (1U << 3)
#define PMEM2_F_MEM_WB (1U << 4)
#define PMEM2_F_MEM_NOFLUSH (1U << 5)
#define PMEM2_F_MEM_VALID_FLAGS (PMEM2_F_MEM_NODRAIN | \
PMEM2_F_MEM_NONTEMPORAL | \
PMEM2_F_MEM_TEMPORAL | \
PMEM2_F_MEM_WC | \
PMEM2_F_MEM_WB | \
PMEM2_F_MEM_NOFLUSH)
typedef void *(*pmem2_memmove_fn)(void *pmemdest, const void *src, size_t len,
unsigned flags);
typedef void *(*pmem2_memcpy_fn)(void *pmemdest, const void *src, size_t len,
unsigned flags);
typedef void *(*pmem2_memset_fn)(void *pmemdest, int c, size_t len,
unsigned flags);
pmem2_memmove_fn pmem2_get_memmove_fn(struct pmem2_map *map);
pmem2_memcpy_fn pmem2_get_memcpy_fn(struct pmem2_map *map);
pmem2_memset_fn pmem2_get_memset_fn(struct pmem2_map *map);
/* RAS */
int pmem2_deep_flush(struct pmem2_map *map, void *ptr, size_t size);
#ifndef _WIN32
int pmem2_source_device_id(const struct pmem2_source *src,
char *id, size_t *len);
#else
int pmem2_source_device_idW(const struct pmem2_source *src,
wchar_t *id, size_t *len);
int pmem2_source_device_idU(const struct pmem2_source *src,
char *id, size_t *len);
#endif
int pmem2_source_device_usc(const struct pmem2_source *src, uint64_t *usc);
struct pmem2_badblock_context;
struct pmem2_badblock {
size_t offset;
size_t length;
};
int pmem2_badblock_context_new(const struct pmem2_source *src,
struct pmem2_badblock_context **bbctx);
int pmem2_badblock_next(struct pmem2_badblock_context *bbctx,
struct pmem2_badblock *bb);
void pmem2_badblock_context_delete(
struct pmem2_badblock_context **bbctx);
int pmem2_badblock_clear(struct pmem2_badblock_context *bbctx,
const struct pmem2_badblock *bb);
/* error handling */
#ifndef _WIN32
const char *pmem2_errormsg(void);
#else
const char *pmem2_errormsgU(void);
const wchar_t *pmem2_errormsgW(void);
#endif
int pmem2_err_to_errno(int);
#ifndef _WIN32
void pmem2_perror(const char *format,
...) __attribute__((__format__(__printf__, 1, 2)));
#else
void pmem2_perrorU(const char *format, ...);
void pmem2_perrorW(const wchar_t *format, ...);
#endif
#ifdef __cplusplus
}
#endif
#endif /* libpmem2.h */
| 7,202 | 25.677778 | 79 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/pmemcompat.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2016-2017, Intel Corporation */
/*
* pmemcompat.h -- compatibility layer for libpmem* libraries
*/
#ifndef PMEMCOMPAT_H
#define PMEMCOMPAT_H
#include <windows.h>
/* for backward compatibility */
#ifdef NVML_UTF8_API
#pragma message( "NVML_UTF8_API macro is obsolete, please use PMDK_UTF8_API instead." )
#ifndef PMDK_UTF8_API
#define PMDK_UTF8_API
#endif
#endif
struct iovec {
void *iov_base;
size_t iov_len;
};
typedef int mode_t;
/*
* XXX: this code will not work on windows if our library is included in
* an extern block.
*/
#if defined(__cplusplus) && defined(_MSC_VER) && !defined(__typeof__)
#include <type_traits>
/*
* These templates are used to remove a type reference(T&) which, in some
* cases, is returned by decltype
*/
namespace pmem {
namespace detail {
template<typename T>
struct get_type {
using type = T;
};
template<typename T>
struct get_type<T*> {
using type = T*;
};
template<typename T>
struct get_type<T&> {
using type = T;
};
} /* namespace detail */
} /* namespace pmem */
#define __typeof__(p) pmem::detail::get_type<decltype(p)>::type
#endif
#endif
| 1,161 | 17.15625 | 87 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/ctl.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2017-2019, Intel Corporation */
/*
* libpmemobj/ctl.h -- definitions of pmemobj_ctl related entry points
*/
#ifndef LIBPMEMOBJ_CTL_H
#define LIBPMEMOBJ_CTL_H 1
#include <stddef.h>
#include <sys/types.h>
#include <libpmemobj/base.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Allocation class interface
*
* When requesting an object from the allocator, the first step is to determine
* which allocation class best approximates the size of the object.
* Once found, the appropriate free list, called bucket, for that
* class is selected in a fashion that minimizes contention between threads.
* Depending on the requested size and the allocation class, it might happen
* that the object size (including required metadata) would be bigger than the
* allocation class size - called unit size. In those situations, the object is
* constructed from two or more units (up to 64).
*
* If the requested number of units cannot be retrieved from the selected
* bucket, the thread reaches out to the global, shared, heap which manages
* memory in 256 kilobyte chunks and gives it out in a best-fit fashion. This
* operation must be performed under an exclusive lock.
* Once the thread is in the possession of a chunk, the lock is dropped, and the
* memory is split into units that repopulate the bucket.
*
* These are the CTL entry points that control allocation classes:
* - heap.alloc_class.[class_id].desc
* Creates/retrieves allocation class information
*
* It's VERY important to remember that the allocation classes are a RUNTIME
* property of the allocator - they are NOT stored persistently in the pool.
* It's recommended to always create custom allocation classes immediately after
* creating or opening the pool, before any use.
* If there are existing objects created using a class that is no longer stored
* in the runtime state of the allocator, they can be normally freed, but
* allocating equivalent objects will be done using the allocation class that
* is currently defined for that size.
*
* Please see the libpmemobj man page for more information about entry points.
*/
/*
* Persistent allocation header
*/
enum pobj_header_type {
/*
* 64-byte header used up until the version 1.3 of the library,
* functionally equivalent to the compact header.
* It's not recommended to create any new classes with this header.
*/
POBJ_HEADER_LEGACY,
/*
* 16-byte header used by the default allocation classes. All library
* metadata is by default allocated using this header.
* Supports type numbers and variably sized allocations.
*/
POBJ_HEADER_COMPACT,
/*
* 0-byte header with metadata stored exclusively in a bitmap. This
* ensures that objects are allocated in memory contiguously and
* without attached headers.
* This can be used to create very small allocation classes, but it
* does not support type numbers.
* Additionally, allocations with this header can only span a single
* unit.
* Objects allocated with this header do show up when iterating through
* the heap using pmemobj_first/pmemobj_next functions, but have a
* type_num equal 0.
*/
POBJ_HEADER_NONE,
MAX_POBJ_HEADER_TYPES
};
/*
* Description of allocation classes
*/
struct pobj_alloc_class_desc {
/*
* The number of bytes in a single unit of allocation. A single
* allocation can span up to 64 units (or 1 in the case of no header).
* If one creates an allocation class with a certain unit size and
* forces it to handle bigger sizes, more than one unit
* will be used.
* For example, an allocation class with a compact header and 128 bytes
* unit size, for a request of 200 bytes will create a memory block
* containing 256 bytes that spans two units. The usable size of that
* allocation will be 240 bytes: 2 * 128 - 16 (header).
*/
size_t unit_size;
/*
* Desired alignment of objects from the allocation class.
* If non zero, must be a power of two and an even divisor of unit size.
*
* All allocation classes have default alignment
* of 64. User data alignment is affected by the size of a header. For
* compact one this means that the alignment is 48 bytes.
*
*/
size_t alignment;
/*
* The minimum number of units that must be present in a
* single, contiguous, memory block.
* Those blocks (internally called runs), are fetched on demand from the
* heap. Accessing that global state is a serialization point for the
* allocator and thus it is imperative for performance and scalability
* that a reasonable amount of memory is fetched in a single call.
* Threads generally do not share memory blocks from which they
* allocate, but blocks do go back to the global heap if they are no
* longer actively used for allocation.
*/
unsigned units_per_block;
/*
* The header of allocations that originate from this allocation class.
*/
enum pobj_header_type header_type;
/*
* The identifier of this allocation class.
*/
unsigned class_id;
};
enum pobj_stats_enabled {
POBJ_STATS_ENABLED_TRANSIENT,
POBJ_STATS_ENABLED_BOTH,
POBJ_STATS_ENABLED_PERSISTENT,
POBJ_STATS_DISABLED,
};
#ifndef _WIN32
/* EXPERIMENTAL */
int pmemobj_ctl_get(PMEMobjpool *pop, const char *name, void *arg);
int pmemobj_ctl_set(PMEMobjpool *pop, const char *name, void *arg);
int pmemobj_ctl_exec(PMEMobjpool *pop, const char *name, void *arg);
#else
int pmemobj_ctl_getU(PMEMobjpool *pop, const char *name, void *arg);
int pmemobj_ctl_getW(PMEMobjpool *pop, const wchar_t *name, void *arg);
int pmemobj_ctl_setU(PMEMobjpool *pop, const char *name, void *arg);
int pmemobj_ctl_setW(PMEMobjpool *pop, const wchar_t *name, void *arg);
int pmemobj_ctl_execU(PMEMobjpool *pop, const char *name, void *arg);
int pmemobj_ctl_execW(PMEMobjpool *pop, const wchar_t *name, void *arg);
#ifndef PMDK_UTF8_API
#define pmemobj_ctl_get pmemobj_ctl_getW
#define pmemobj_ctl_set pmemobj_ctl_setW
#define pmemobj_ctl_exec pmemobj_ctl_execW
#else
#define pmemobj_ctl_get pmemobj_ctl_getU
#define pmemobj_ctl_set pmemobj_ctl_setU
#define pmemobj_ctl_exec pmemobj_ctl_execU
#endif
#endif
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/ctl.h */
| 6,198 | 34.221591 | 80 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/lists_atomic.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2017, Intel Corporation */
/*
* libpmemobj/lists_atomic.h -- definitions of libpmemobj atomic lists macros
*/
#ifndef LIBPMEMOBJ_LISTS_ATOMIC_H
#define LIBPMEMOBJ_LISTS_ATOMIC_H 1
#include <libpmemobj/lists_atomic_base.h>
#include <libpmemobj/thread.h>
#include <libpmemobj/types.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Non-transactional persistent atomic circular doubly-linked list
*/
#define POBJ_LIST_ENTRY(type)\
struct {\
TOID(type) pe_next;\
TOID(type) pe_prev;\
}
#define POBJ_LIST_HEAD(name, type)\
struct name {\
TOID(type) pe_first;\
PMEMmutex lock;\
}
#define POBJ_LIST_FIRST(head) ((head)->pe_first)
#define POBJ_LIST_LAST(head, field) (\
TOID_IS_NULL((head)->pe_first) ?\
(head)->pe_first :\
D_RO((head)->pe_first)->field.pe_prev)
#define POBJ_LIST_EMPTY(head) (TOID_IS_NULL((head)->pe_first))
#define POBJ_LIST_NEXT(elm, field) (D_RO(elm)->field.pe_next)
#define POBJ_LIST_PREV(elm, field) (D_RO(elm)->field.pe_prev)
#define POBJ_LIST_DEST_HEAD 1
#define POBJ_LIST_DEST_TAIL 0
#define POBJ_LIST_DEST_BEFORE 1
#define POBJ_LIST_DEST_AFTER 0
#define POBJ_LIST_FOREACH(var, head, field)\
for (_pobj_debug_notice("POBJ_LIST_FOREACH", __FILE__, __LINE__),\
(var) = POBJ_LIST_FIRST((head));\
TOID_IS_NULL((var)) == 0;\
TOID_EQUALS(POBJ_LIST_NEXT((var), field),\
POBJ_LIST_FIRST((head))) ?\
TOID_ASSIGN((var), OID_NULL) :\
((var) = POBJ_LIST_NEXT((var), field)))
#define POBJ_LIST_FOREACH_REVERSE(var, head, field)\
for (_pobj_debug_notice("POBJ_LIST_FOREACH_REVERSE", __FILE__, __LINE__),\
(var) = POBJ_LIST_LAST((head), field);\
TOID_IS_NULL((var)) == 0;\
TOID_EQUALS(POBJ_LIST_PREV((var), field),\
POBJ_LIST_LAST((head), field)) ?\
TOID_ASSIGN((var), OID_NULL) :\
((var) = POBJ_LIST_PREV((var), field)))
#define POBJ_LIST_INSERT_HEAD(pop, head, elm, field)\
pmemobj_list_insert((pop),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head), field),\
(head), OID_NULL,\
POBJ_LIST_DEST_HEAD, (elm).oid)
#define POBJ_LIST_INSERT_TAIL(pop, head, elm, field)\
pmemobj_list_insert((pop),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head), field),\
(head), OID_NULL,\
POBJ_LIST_DEST_TAIL, (elm).oid)
#define POBJ_LIST_INSERT_AFTER(pop, head, listelm, elm, field)\
pmemobj_list_insert((pop),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head), field),\
(head), (listelm).oid,\
0 /* after */, (elm).oid)
#define POBJ_LIST_INSERT_BEFORE(pop, head, listelm, elm, field)\
pmemobj_list_insert((pop), \
TOID_OFFSETOF(POBJ_LIST_FIRST(head), field),\
(head), (listelm).oid,\
1 /* before */, (elm).oid)
#define POBJ_LIST_INSERT_NEW_HEAD(pop, head, field, size, constr, arg)\
pmemobj_list_insert_new((pop),\
TOID_OFFSETOF((head)->pe_first, field),\
(head), OID_NULL, POBJ_LIST_DEST_HEAD, (size),\
TOID_TYPE_NUM_OF((head)->pe_first), (constr), (arg))
#define POBJ_LIST_INSERT_NEW_TAIL(pop, head, field, size, constr, arg)\
pmemobj_list_insert_new((pop),\
TOID_OFFSETOF((head)->pe_first, field),\
(head), OID_NULL, POBJ_LIST_DEST_TAIL, (size),\
TOID_TYPE_NUM_OF((head)->pe_first), (constr), (arg))
#define POBJ_LIST_INSERT_NEW_AFTER(pop, head, listelm, field, size,\
constr, arg)\
pmemobj_list_insert_new((pop),\
TOID_OFFSETOF((head)->pe_first, field),\
(head), (listelm).oid, 0 /* after */, (size),\
TOID_TYPE_NUM_OF((head)->pe_first), (constr), (arg))
#define POBJ_LIST_INSERT_NEW_BEFORE(pop, head, listelm, field, size,\
constr, arg)\
pmemobj_list_insert_new((pop),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head), field),\
(head), (listelm).oid, 1 /* before */, (size),\
TOID_TYPE_NUM_OF((head)->pe_first), (constr), (arg))
#define POBJ_LIST_REMOVE(pop, head, elm, field)\
pmemobj_list_remove((pop),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head), field),\
(head), (elm).oid, 0 /* no free */)
#define POBJ_LIST_REMOVE_FREE(pop, head, elm, field)\
pmemobj_list_remove((pop),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head), field),\
(head), (elm).oid, 1 /* free */)
#define POBJ_LIST_MOVE_ELEMENT_HEAD(pop, head, head_new, elm, field, field_new)\
pmemobj_list_move((pop),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head), field),\
(head),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head_new), field_new),\
(head_new), OID_NULL, POBJ_LIST_DEST_HEAD, (elm).oid)
#define POBJ_LIST_MOVE_ELEMENT_TAIL(pop, head, head_new, elm, field, field_new)\
pmemobj_list_move((pop),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head), field),\
(head),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head_new), field_new),\
(head_new), OID_NULL, POBJ_LIST_DEST_TAIL, (elm).oid)
#define POBJ_LIST_MOVE_ELEMENT_AFTER(pop,\
head, head_new, listelm, elm, field, field_new)\
pmemobj_list_move((pop),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head), field),\
(head),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head_new), field_new),\
(head_new),\
(listelm).oid,\
0 /* after */, (elm).oid)
#define POBJ_LIST_MOVE_ELEMENT_BEFORE(pop,\
head, head_new, listelm, elm, field, field_new)\
pmemobj_list_move((pop),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head), field),\
(head),\
TOID_OFFSETOF(POBJ_LIST_FIRST(head_new), field_new),\
(head_new),\
(listelm).oid,\
1 /* before */, (elm).oid)
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/lists_atomic.h */
| 5,121 | 30.042424 | 80 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/iterator.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2019, Intel Corporation */
/*
* libpmemobj/iterator.h -- definitions of libpmemobj iterator macros
*/
#ifndef LIBPMEMOBJ_ITERATOR_H
#define LIBPMEMOBJ_ITERATOR_H 1
#include <libpmemobj/iterator_base.h>
#include <libpmemobj/types.h>
#ifdef __cplusplus
extern "C" {
#endif
static inline PMEMoid
POBJ_FIRST_TYPE_NUM(PMEMobjpool *pop, uint64_t type_num)
{
PMEMoid _pobj_ret = pmemobj_first(pop);
while (!OID_IS_NULL(_pobj_ret) &&
pmemobj_type_num(_pobj_ret) != type_num) {
_pobj_ret = pmemobj_next(_pobj_ret);
}
return _pobj_ret;
}
static inline PMEMoid
POBJ_NEXT_TYPE_NUM(PMEMoid o)
{
PMEMoid _pobj_ret = o;
do {
_pobj_ret = pmemobj_next(_pobj_ret);\
} while (!OID_IS_NULL(_pobj_ret) &&
pmemobj_type_num(_pobj_ret) != pmemobj_type_num(o));
return _pobj_ret;
}
#define POBJ_FIRST(pop, t) ((TOID(t))POBJ_FIRST_TYPE_NUM(pop, TOID_TYPE_NUM(t)))
#define POBJ_NEXT(o) ((__typeof__(o))POBJ_NEXT_TYPE_NUM((o).oid))
/*
* Iterates through every existing allocated object.
*/
#define POBJ_FOREACH(pop, varoid)\
for (_pobj_debug_notice("POBJ_FOREACH", __FILE__, __LINE__),\
varoid = pmemobj_first(pop);\
(varoid).off != 0; varoid = pmemobj_next(varoid))
/*
* Safe variant of POBJ_FOREACH in which pmemobj_free on varoid is allowed
*/
#define POBJ_FOREACH_SAFE(pop, varoid, nvaroid)\
for (_pobj_debug_notice("POBJ_FOREACH_SAFE", __FILE__, __LINE__),\
varoid = pmemobj_first(pop);\
(varoid).off != 0 && (nvaroid = pmemobj_next(varoid), 1);\
varoid = nvaroid)
/*
* Iterates through every object of the specified type.
*/
#define POBJ_FOREACH_TYPE(pop, var)\
POBJ_FOREACH(pop, (var).oid)\
if (pmemobj_type_num((var).oid) == TOID_TYPE_NUM_OF(var))
/*
* Safe variant of POBJ_FOREACH_TYPE in which pmemobj_free on var
* is allowed.
*/
#define POBJ_FOREACH_SAFE_TYPE(pop, var, nvar)\
POBJ_FOREACH_SAFE(pop, (var).oid, (nvar).oid)\
if (pmemobj_type_num((var).oid) == TOID_TYPE_NUM_OF(var))
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/iterator.h */
| 2,041 | 23.60241 | 80 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/lists_atomic_base.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2017, Intel Corporation */
/*
* libpmemobj/lists_atomic_base.h -- definitions of libpmemobj atomic lists
*/
#ifndef LIBPMEMOBJ_LISTS_ATOMIC_BASE_H
#define LIBPMEMOBJ_LISTS_ATOMIC_BASE_H 1
#include <libpmemobj/base.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Non-transactional persistent atomic circular doubly-linked list
*/
int pmemobj_list_insert(PMEMobjpool *pop, size_t pe_offset, void *head,
PMEMoid dest, int before, PMEMoid oid);
PMEMoid pmemobj_list_insert_new(PMEMobjpool *pop, size_t pe_offset, void *head,
PMEMoid dest, int before, size_t size, uint64_t type_num,
pmemobj_constr constructor, void *arg);
int pmemobj_list_remove(PMEMobjpool *pop, size_t pe_offset, void *head,
PMEMoid oid, int free);
int pmemobj_list_move(PMEMobjpool *pop, size_t pe_old_offset,
void *head_old, size_t pe_new_offset, void *head_new,
PMEMoid dest, int before, PMEMoid oid);
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/lists_atomic_base.h */
| 1,022 | 24.575 | 79 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/tx_base.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2020, Intel Corporation */
/*
* libpmemobj/tx_base.h -- definitions of libpmemobj transactional entry points
*/
#ifndef LIBPMEMOBJ_TX_BASE_H
#define LIBPMEMOBJ_TX_BASE_H 1
#include <setjmp.h>
#include <libpmemobj/base.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Transactions
*
* Stages are changed only by the pmemobj_tx_* functions, each transition
* to the TX_STAGE_ONABORT is followed by a longjmp to the jmp_buf provided in
* the pmemobj_tx_begin function.
*/
enum pobj_tx_stage {
TX_STAGE_NONE, /* no transaction in this thread */
TX_STAGE_WORK, /* transaction in progress */
TX_STAGE_ONCOMMIT, /* successfully committed */
TX_STAGE_ONABORT, /* tx_begin failed or transaction aborted */
TX_STAGE_FINALLY, /* always called */
MAX_TX_STAGE
};
/*
* Always returns the current transaction stage for a thread.
*/
enum pobj_tx_stage pmemobj_tx_stage(void);
enum pobj_tx_param {
TX_PARAM_NONE,
TX_PARAM_MUTEX, /* PMEMmutex */
TX_PARAM_RWLOCK, /* PMEMrwlock */
TX_PARAM_CB, /* pmemobj_tx_callback cb, void *arg */
};
enum pobj_log_type {
TX_LOG_TYPE_SNAPSHOT,
TX_LOG_TYPE_INTENT,
};
enum pobj_tx_failure_behavior {
POBJ_TX_FAILURE_ABORT,
POBJ_TX_FAILURE_RETURN,
};
#if !defined(pmdk_use_attr_deprec_with_msg) && defined(__COVERITY__)
#define pmdk_use_attr_deprec_with_msg 0
#endif
#if !defined(pmdk_use_attr_deprec_with_msg) && defined(__clang__)
#if __has_extension(attribute_deprecated_with_message)
#define pmdk_use_attr_deprec_with_msg 1
#else
#define pmdk_use_attr_deprec_with_msg 0
#endif
#endif
#if !defined(pmdk_use_attr_deprec_with_msg) && \
defined(__GNUC__) && !defined(__INTEL_COMPILER)
#if __GNUC__ * 100 + __GNUC_MINOR__ >= 601 /* 6.1 */
#define pmdk_use_attr_deprec_with_msg 1
#else
#define pmdk_use_attr_deprec_with_msg 0
#endif
#endif
#if !defined(pmdk_use_attr_deprec_with_msg)
#define pmdk_use_attr_deprec_with_msg 0
#endif
#if pmdk_use_attr_deprec_with_msg
#define tx_lock_deprecated __attribute__((deprecated(\
"enum pobj_tx_lock is deprecated, use enum pobj_tx_param")))
#else
#define tx_lock_deprecated
#endif
/* deprecated, do not use */
enum tx_lock_deprecated pobj_tx_lock {
TX_LOCK_NONE tx_lock_deprecated = TX_PARAM_NONE,
TX_LOCK_MUTEX tx_lock_deprecated = TX_PARAM_MUTEX,
TX_LOCK_RWLOCK tx_lock_deprecated = TX_PARAM_RWLOCK,
};
typedef void (*pmemobj_tx_callback)(PMEMobjpool *pop, enum pobj_tx_stage stage,
void *);
#define POBJ_TX_XALLOC_VALID_FLAGS (POBJ_XALLOC_ZERO |\
POBJ_XALLOC_NO_FLUSH |\
POBJ_XALLOC_ARENA_MASK |\
POBJ_XALLOC_CLASS_MASK |\
POBJ_XALLOC_NO_ABORT)
#define POBJ_XADD_NO_FLUSH POBJ_FLAG_NO_FLUSH
#define POBJ_XADD_NO_SNAPSHOT POBJ_FLAG_NO_SNAPSHOT
#define POBJ_XADD_ASSUME_INITIALIZED POBJ_FLAG_ASSUME_INITIALIZED
#define POBJ_XADD_NO_ABORT POBJ_FLAG_TX_NO_ABORT
#define POBJ_XADD_VALID_FLAGS (POBJ_XADD_NO_FLUSH |\
POBJ_XADD_NO_SNAPSHOT |\
POBJ_XADD_ASSUME_INITIALIZED |\
POBJ_XADD_NO_ABORT)
#define POBJ_XLOCK_NO_ABORT POBJ_FLAG_TX_NO_ABORT
#define POBJ_XLOCK_VALID_FLAGS (POBJ_XLOCK_NO_ABORT)
#define POBJ_XFREE_NO_ABORT POBJ_FLAG_TX_NO_ABORT
#define POBJ_XFREE_VALID_FLAGS (POBJ_XFREE_NO_ABORT)
#define POBJ_XPUBLISH_NO_ABORT POBJ_FLAG_TX_NO_ABORT
#define POBJ_XPUBLISH_VALID_FLAGS (POBJ_XPUBLISH_NO_ABORT)
#define POBJ_XLOG_APPEND_BUFFER_NO_ABORT POBJ_FLAG_TX_NO_ABORT
#define POBJ_XLOG_APPEND_BUFFER_VALID_FLAGS (POBJ_XLOG_APPEND_BUFFER_NO_ABORT)
/*
* Starts a new transaction in the current thread.
* If called within an open transaction, starts a nested transaction.
*
* If successful, transaction stage changes to TX_STAGE_WORK and function
* returns zero. Otherwise, stage changes to TX_STAGE_ONABORT and an error
* number is returned.
*/
int pmemobj_tx_begin(PMEMobjpool *pop, jmp_buf env, ...);
/*
* Adds lock of given type to current transaction.
* 'Flags' is a bitmask of the following values:
* - POBJ_XLOCK_NO_ABORT - if the function does not end successfully,
* do not abort the transaction and return the error number.
*/
int pmemobj_tx_xlock(enum pobj_tx_param type, void *lockp, uint64_t flags);
/*
* Adds lock of given type to current transaction.
*/
int pmemobj_tx_lock(enum pobj_tx_param type, void *lockp);
/*
* Aborts current transaction
*
* Causes transition to TX_STAGE_ONABORT.
*
* This function must be called during TX_STAGE_WORK.
*/
void pmemobj_tx_abort(int errnum);
/*
* Commits current transaction
*
* This function must be called during TX_STAGE_WORK.
*/
void pmemobj_tx_commit(void);
/*
* Cleanups current transaction. Must always be called after pmemobj_tx_begin,
* even if starting the transaction failed.
*
* If called during TX_STAGE_NONE, has no effect.
*
* Always causes transition to TX_STAGE_NONE.
*
* If transaction was successful, returns 0. Otherwise returns error code set
* by pmemobj_tx_abort.
*
* This function must *not* be called during TX_STAGE_WORK.
*/
int pmemobj_tx_end(void);
/*
* Performs the actions associated with current stage of the transaction,
* and makes the transition to the next stage. Current stage must always
* be obtained by calling pmemobj_tx_stage.
*
* This function must be called in transaction.
*/
void pmemobj_tx_process(void);
/*
* Returns last transaction error code.
*/
int pmemobj_tx_errno(void);
/*
* Takes a "snapshot" of the memory block of given size and located at given
* offset 'off' in the object 'oid' and saves it in the undo log.
* The application is then free to directly modify the object in that memory
* range. In case of failure or abort, all the changes within this range will
* be rolled-back automatically.
*
* If successful, returns zero.
* Otherwise, stage changes to TX_STAGE_ONABORT and an error number is returned.
*
* This function must be called during TX_STAGE_WORK.
*/
int pmemobj_tx_add_range(PMEMoid oid, uint64_t off, size_t size);
/*
* Takes a "snapshot" of the given memory region and saves it in the undo log.
* The application is then free to directly modify the object in that memory
* range. In case of failure or abort, all the changes within this range will
* be rolled-back automatically. The supplied block of memory has to be within
* the given pool.
*
* If successful, returns zero.
* Otherwise, stage changes to TX_STAGE_ONABORT and an error number is returned.
*
* This function must be called during TX_STAGE_WORK.
*/
int pmemobj_tx_add_range_direct(const void *ptr, size_t size);
/*
* Behaves exactly the same as pmemobj_tx_add_range when 'flags' equals 0.
* 'Flags' is a bitmask of the following values:
* - POBJ_XADD_NO_FLUSH - skips flush on commit
* - POBJ_XADD_NO_SNAPSHOT - added range will not be snapshotted
* - POBJ_XADD_ASSUME_INITIALIZED - added range is assumed to be initialized
* - POBJ_XADD_NO_ABORT - if the function does not end successfully,
* do not abort the transaction and return the error number.
*/
int pmemobj_tx_xadd_range(PMEMoid oid, uint64_t off, size_t size,
uint64_t flags);
/*
* Behaves exactly the same as pmemobj_tx_add_range_direct when 'flags' equals
* 0. 'Flags' is a bitmask of the following values:
* - POBJ_XADD_NO_FLUSH - skips flush on commit
* - POBJ_XADD_NO_SNAPSHOT - added range will not be snapshotted
* - POBJ_XADD_ASSUME_INITIALIZED - added range is assumed to be initialized
* - POBJ_XADD_NO_ABORT - if the function does not end successfully,
* do not abort the transaction and return the error number.
*/
int pmemobj_tx_xadd_range_direct(const void *ptr, size_t size, uint64_t flags);
/*
* Transactionally allocates a new object.
*
* If successful, returns PMEMoid.
* Otherwise, stage changes to TX_STAGE_ONABORT and an OID_NULL is returned.
*
* This function must be called during TX_STAGE_WORK.
*/
PMEMoid pmemobj_tx_alloc(size_t size, uint64_t type_num);
/*
* Transactionally allocates a new object.
*
* If successful, returns PMEMoid.
* Otherwise, stage changes to TX_STAGE_ONABORT and an OID_NULL is returned.
* 'Flags' is a bitmask of the following values:
* - POBJ_XALLOC_ZERO - zero the allocated object
* - POBJ_XALLOC_NO_FLUSH - skip flush on commit
* - POBJ_XALLOC_NO_ABORT - if the function does not end successfully,
* do not abort the transaction and return the error number.
*
* This function must be called during TX_STAGE_WORK.
*/
PMEMoid pmemobj_tx_xalloc(size_t size, uint64_t type_num, uint64_t flags);
/*
* Transactionally allocates new zeroed object.
*
* If successful, returns PMEMoid.
* Otherwise, stage changes to TX_STAGE_ONABORT and an OID_NULL is returned.
*
* This function must be called during TX_STAGE_WORK.
*/
PMEMoid pmemobj_tx_zalloc(size_t size, uint64_t type_num);
/*
* Transactionally resizes an existing object.
*
* If successful, returns PMEMoid.
* Otherwise, stage changes to TX_STAGE_ONABORT and an OID_NULL is returned.
*
* This function must be called during TX_STAGE_WORK.
*/
PMEMoid pmemobj_tx_realloc(PMEMoid oid, size_t size, uint64_t type_num);
/*
* Transactionally resizes an existing object, if extended new space is zeroed.
*
* If successful, returns PMEMoid.
* Otherwise, stage changes to TX_STAGE_ONABORT and an OID_NULL is returned.
*
* This function must be called during TX_STAGE_WORK.
*/
PMEMoid pmemobj_tx_zrealloc(PMEMoid oid, size_t size, uint64_t type_num);
/*
* Transactionally allocates a new object with duplicate of the string s.
*
* If successful, returns PMEMoid.
* Otherwise, stage changes to TX_STAGE_ONABORT and an OID_NULL is returned.
*
* This function must be called during TX_STAGE_WORK.
*/
PMEMoid pmemobj_tx_strdup(const char *s, uint64_t type_num);
/*
* Transactionally allocates a new object with duplicate of the string s.
*
* If successful, returns PMEMoid.
* Otherwise, stage changes to TX_STAGE_ONABORT and an OID_NULL is returned.
* 'Flags' is a bitmask of the following values:
* - POBJ_XALLOC_ZERO - zero the allocated object
* - POBJ_XALLOC_NO_FLUSH - skip flush on commit
* - POBJ_XALLOC_NO_ABORT - if the function does not end successfully,
* do not abort the transaction and return the error number.
*
* This function must be called during TX_STAGE_WORK.
*/
PMEMoid pmemobj_tx_xstrdup(const char *s, uint64_t type_num, uint64_t flags);
/*
* Transactionally allocates a new object with duplicate of the wide character
* string s.
*
* If successful, returns PMEMoid.
* Otherwise, stage changes to TX_STAGE_ONABORT and an OID_NULL is returned.
*
* This function must be called during TX_STAGE_WORK.
*/
PMEMoid pmemobj_tx_wcsdup(const wchar_t *s, uint64_t type_num);
/*
* Transactionally allocates a new object with duplicate of the wide character
* string s.
*
* If successful, returns PMEMoid.
* Otherwise, stage changes to TX_STAGE_ONABORT and an OID_NULL is returned.
* 'Flags' is a bitmask of the following values:
* - POBJ_XALLOC_ZERO - zero the allocated object
* - POBJ_XALLOC_NO_FLUSH - skip flush on commit
* - POBJ_XALLOC_NO_ABORT - if the function does not end successfully,
* do not abort the transaction and return the error number.
*
* This function must be called during TX_STAGE_WORK.
*/
PMEMoid pmemobj_tx_xwcsdup(const wchar_t *s, uint64_t type_num, uint64_t flags);
/*
* Transactionally frees an existing object.
*
* If successful, returns zero.
* Otherwise, stage changes to TX_STAGE_ONABORT and an error number is returned.
*
* This function must be called during TX_STAGE_WORK.
*/
int pmemobj_tx_free(PMEMoid oid);
/*
* Transactionally frees an existing object.
*
* If successful, returns zero.
* Otherwise, the stage changes to TX_STAGE_ONABORT and the error number is
* returned.
* 'Flags' is a bitmask of the following values:
* - POBJ_XFREE_NO_ABORT - if the function does not end successfully,
* do not abort the transaction and return the error number.
*
* This function must be called during TX_STAGE_WORK.
*/
int pmemobj_tx_xfree(PMEMoid oid, uint64_t flags);
/*
* Append user allocated buffer to the ulog.
*
* If successful, returns zero.
* Otherwise, stage changes to TX_STAGE_ONABORT and an error number is returned.
*
* This function must be called during TX_STAGE_WORK.
*/
int pmemobj_tx_log_append_buffer(enum pobj_log_type type,
void *addr, size_t size);
/*
* Append user allocated buffer to the ulog.
*
* If successful, returns zero.
* Otherwise, stage changes to TX_STAGE_ONABORT and an error number is returned.
* 'Flags' is a bitmask of the following values:
* - POBJ_XLOG_APPEND_BUFFER_NO_ABORT - if the function does not end
* successfully, do not abort the transaction and return the error number.
*
* This function must be called during TX_STAGE_WORK.
*/
int pmemobj_tx_xlog_append_buffer(enum pobj_log_type type,
void *addr, size_t size, uint64_t flags);
/*
* Enables or disables automatic ulog allocations.
*
* If successful, returns zero.
* Otherwise, stage changes to TX_STAGE_ONABORT and an error number is returned.
*
* This function must be called during TX_STAGE_WORK.
*/
int pmemobj_tx_log_auto_alloc(enum pobj_log_type type, int on_off);
/*
* Calculates and returns size for user buffers for snapshots.
*/
size_t pmemobj_tx_log_snapshots_max_size(size_t *sizes, size_t nsizes);
/*
* Calculates and returns size for user buffers for intents.
*/
size_t pmemobj_tx_log_intents_max_size(size_t nintents);
/*
* Sets volatile pointer to the user data for the current transaction.
*/
void pmemobj_tx_set_user_data(void *data);
/*
* Gets volatile pointer to the user data associated with the current
* transaction.
*/
void *pmemobj_tx_get_user_data(void);
/*
* Sets the failure behavior of transactional functions.
*
* This function must be called during TX_STAGE_WORK.
*/
void pmemobj_tx_set_failure_behavior(enum pobj_tx_failure_behavior behavior);
/*
* Returns failure behavior for the current transaction.
*
* This function must be called during TX_STAGE_WORK.
*/
enum pobj_tx_failure_behavior pmemobj_tx_get_failure_behavior(void);
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/tx_base.h */
| 14,087 | 30.237251 | 80 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/pool_base.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2020, Intel Corporation */
/*
* libpmemobj/pool_base.h -- definitions of libpmemobj pool entry points
*/
#ifndef LIBPMEMOBJ_POOL_BASE_H
#define LIBPMEMOBJ_POOL_BASE_H 1
#include <stddef.h>
#include <sys/types.h>
#include <libpmemobj/base.h>
#ifdef __cplusplus
extern "C" {
#endif
#define PMEMOBJ_MIN_POOL ((size_t)(1024 * 1024 * 8)) /* 8 MiB */
/*
* This limit is set arbitrary to incorporate a pool header and required
* alignment plus supply.
*/
#define PMEMOBJ_MIN_PART ((size_t)(1024 * 1024 * 2)) /* 2 MiB */
/*
* Pool management.
*/
#ifdef _WIN32
#ifndef PMDK_UTF8_API
#define pmemobj_open pmemobj_openW
#define pmemobj_create pmemobj_createW
#define pmemobj_check pmemobj_checkW
#else
#define pmemobj_open pmemobj_openU
#define pmemobj_create pmemobj_createU
#define pmemobj_check pmemobj_checkU
#endif
#endif
#ifndef _WIN32
PMEMobjpool *pmemobj_open(const char *path, const char *layout);
#else
PMEMobjpool *pmemobj_openU(const char *path, const char *layout);
PMEMobjpool *pmemobj_openW(const wchar_t *path, const wchar_t *layout);
#endif
#ifndef _WIN32
PMEMobjpool *pmemobj_create(const char *path, const char *layout,
size_t poolsize, mode_t mode);
#else
PMEMobjpool *pmemobj_createU(const char *path, const char *layout,
size_t poolsize, mode_t mode);
PMEMobjpool *pmemobj_createW(const wchar_t *path, const wchar_t *layout,
size_t poolsize, mode_t mode);
#endif
#ifndef _WIN32
int pmemobj_check(const char *path, const char *layout);
#else
int pmemobj_checkU(const char *path, const char *layout);
int pmemobj_checkW(const wchar_t *path, const wchar_t *layout);
#endif
void pmemobj_close(PMEMobjpool *pop);
/*
* If called for the first time on a newly created pool, the root object
* of given size is allocated. Otherwise, it returns the existing root object.
* In such case, the size must be not less than the actual root object size
* stored in the pool. If it's larger, the root object is automatically
* resized.
*
* This function is thread-safe.
*/
PMEMoid pmemobj_root(PMEMobjpool *pop, size_t size);
/*
* Same as above, but calls the constructor function when the object is first
* created and on all subsequent reallocations.
*/
PMEMoid pmemobj_root_construct(PMEMobjpool *pop, size_t size,
pmemobj_constr constructor, void *arg);
/*
* Returns the size in bytes of the root object. Always equal to the requested
* size.
*/
size_t pmemobj_root_size(PMEMobjpool *pop);
/*
* Sets volatile pointer to the user data for specified pool.
*/
void pmemobj_set_user_data(PMEMobjpool *pop, void *data);
/*
* Gets volatile pointer to the user data associated with the specified pool.
*/
void *pmemobj_get_user_data(PMEMobjpool *pop);
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/pool_base.h */
| 2,813 | 25.54717 | 79 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/action_base.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2017-2020, Intel Corporation */
/*
* libpmemobj/action_base.h -- definitions of libpmemobj action interface
*/
#ifndef LIBPMEMOBJ_ACTION_BASE_H
#define LIBPMEMOBJ_ACTION_BASE_H 1
#include <libpmemobj/base.h>
#ifdef __cplusplus
extern "C" {
#endif
enum pobj_action_type {
/* a heap action (e.g., alloc) */
POBJ_ACTION_TYPE_HEAP,
/* a single memory operation (e.g., value set) */
POBJ_ACTION_TYPE_MEM,
POBJ_MAX_ACTION_TYPE
};
struct pobj_action_heap {
/* offset to the element being freed/allocated */
uint64_t offset;
/* usable size of the element being allocated */
uint64_t usable_size;
};
struct pobj_action {
/*
* These fields are internal for the implementation and are not
* guaranteed to be stable across different versions of the API.
* Use with caution.
*
* This structure should NEVER be stored on persistent memory!
*/
enum pobj_action_type type;
uint32_t data[3];
union {
struct pobj_action_heap heap;
uint64_t data2[14];
};
};
#define POBJ_ACTION_XRESERVE_VALID_FLAGS\
(POBJ_XALLOC_CLASS_MASK |\
POBJ_XALLOC_ARENA_MASK |\
POBJ_XALLOC_ZERO)
PMEMoid pmemobj_reserve(PMEMobjpool *pop, struct pobj_action *act,
size_t size, uint64_t type_num);
PMEMoid pmemobj_xreserve(PMEMobjpool *pop, struct pobj_action *act,
size_t size, uint64_t type_num, uint64_t flags);
void pmemobj_set_value(PMEMobjpool *pop, struct pobj_action *act,
uint64_t *ptr, uint64_t value);
void pmemobj_defer_free(PMEMobjpool *pop, PMEMoid oid, struct pobj_action *act);
int pmemobj_publish(PMEMobjpool *pop, struct pobj_action *actv,
size_t actvcnt);
int pmemobj_tx_publish(struct pobj_action *actv, size_t actvcnt);
int pmemobj_tx_xpublish(struct pobj_action *actv, size_t actvcnt,
uint64_t flags);
void pmemobj_cancel(PMEMobjpool *pop, struct pobj_action *actv, size_t actvcnt);
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/action_base.h */
| 1,935 | 24.813333 | 80 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/types.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2020, Intel Corporation */
/*
* libpmemobj/types.h -- definitions of libpmemobj type-safe macros
*/
#ifndef LIBPMEMOBJ_TYPES_H
#define LIBPMEMOBJ_TYPES_H 1
#include <libpmemobj/base.h>
#ifdef __cplusplus
extern "C" {
#endif
#define TOID_NULL(t) ((TOID(t))OID_NULL)
#define PMEMOBJ_MAX_LAYOUT ((size_t)1024)
/*
* Type safety macros
*/
#if !(defined _MSC_VER || defined __clang__)
#define TOID_ASSIGN(o, value)(\
{\
(o).oid = value;\
(o); /* to avoid "error: statement with no effect" */\
})
#else /* _MSC_VER or __clang__ */
#define TOID_ASSIGN(o, value) ((o).oid = value, (o))
#endif
#if (defined _MSC_VER && _MSC_VER < 1912)
/*
* XXX - workaround for offsetof issue in VS 15.3,
* it has been fixed since Visual Studio 2017 Version 15.5
* (_MSC_VER == 1912)
*/
#ifdef PMEMOBJ_OFFSETOF_WA
#ifdef _CRT_USE_BUILTIN_OFFSETOF
#undef offsetof
#define offsetof(s, m) ((size_t)&reinterpret_cast < char const volatile& > \
((((s *)0)->m)))
#endif
#else
#ifdef _CRT_USE_BUILTIN_OFFSETOF
#error "Invalid definition of offsetof() macro - see: \
https://developercommunity.visualstudio.com/content/problem/96174/\
offsetof-macro-is-broken-for-nested-objects.html \
Please upgrade your VS, fix offsetof as described under the link or define \
PMEMOBJ_OFFSETOF_WA to enable workaround in libpmemobj.h"
#endif
#endif
#endif /* _MSC_VER */
#define TOID_EQUALS(lhs, rhs)\
((lhs).oid.off == (rhs).oid.off &&\
(lhs).oid.pool_uuid_lo == (rhs).oid.pool_uuid_lo)
/* type number of root object */
#define POBJ_ROOT_TYPE_NUM 0
#define _toid_struct
#define _toid_union
#define _toid_enum
#define _POBJ_LAYOUT_REF(name) (sizeof(_pobj_layout_##name##_ref))
/*
* Typed OID
*/
#define TOID(t)\
union _toid_##t##_toid
#ifdef __cplusplus
#define _TOID_CONSTR(t)\
_toid_##t##_toid()\
{ }\
_toid_##t##_toid(PMEMoid _oid) : oid(_oid)\
{ }
#else
#define _TOID_CONSTR(t)
#endif
/*
* Declaration of typed OID
*/
#define _TOID_DECLARE(t, i)\
typedef uint8_t _toid_##t##_toid_type_num[(i) + 1];\
TOID(t)\
{\
_TOID_CONSTR(t)\
PMEMoid oid;\
t *_type;\
_toid_##t##_toid_type_num *_type_num;\
}
/*
* Declaration of typed OID of an object
*/
#define TOID_DECLARE(t, i) _TOID_DECLARE(t, i)
/*
* Declaration of typed OID of a root object
*/
#define TOID_DECLARE_ROOT(t) _TOID_DECLARE(t, POBJ_ROOT_TYPE_NUM)
/*
* Type number of specified type
*/
#define TOID_TYPE_NUM(t) (sizeof(_toid_##t##_toid_type_num) - 1)
/*
* Type number of object read from typed OID
*/
#define TOID_TYPE_NUM_OF(o) (sizeof(*(o)._type_num) - 1)
/*
* NULL check
*/
#define TOID_IS_NULL(o) ((o).oid.off == 0)
/*
* Validates whether type number stored in typed OID is the same
* as type number stored in object's metadata
*/
#define TOID_VALID(o) (TOID_TYPE_NUM_OF(o) == pmemobj_type_num((o).oid))
/*
* Checks whether the object is of a given type
*/
#define OID_INSTANCEOF(o, t) (TOID_TYPE_NUM(t) == pmemobj_type_num(o))
/*
* Begin of layout declaration
*/
#define POBJ_LAYOUT_BEGIN(name)\
typedef uint8_t _pobj_layout_##name##_ref[__COUNTER__ + 1]
/*
* End of layout declaration
*/
#define POBJ_LAYOUT_END(name)\
typedef char _pobj_layout_##name##_cnt[__COUNTER__ + 1 -\
_POBJ_LAYOUT_REF(name)];
/*
* Number of types declared inside layout without the root object
*/
#define POBJ_LAYOUT_TYPES_NUM(name) (sizeof(_pobj_layout_##name##_cnt) - 1)
/*
* Declaration of typed OID inside layout declaration
*/
#define POBJ_LAYOUT_TOID(name, t)\
TOID_DECLARE(t, (__COUNTER__ + 1 - _POBJ_LAYOUT_REF(name)));
/*
* Declaration of typed OID of root inside layout declaration
*/
#define POBJ_LAYOUT_ROOT(name, t)\
TOID_DECLARE_ROOT(t);
/*
* Name of declared layout
*/
#define POBJ_LAYOUT_NAME(name) #name
#define TOID_TYPEOF(o) __typeof__(*(o)._type)
#define TOID_OFFSETOF(o, field) offsetof(TOID_TYPEOF(o), field)
/*
* XXX - DIRECT_RW and DIRECT_RO are not available when compiled using VC++
* as C code (/TC). Use /TP option.
*/
#ifndef _MSC_VER
#define DIRECT_RW(o) (\
{__typeof__(o) _o; _o._type = NULL; (void)_o;\
(__typeof__(*(o)._type) *)pmemobj_direct((o).oid); })
#define DIRECT_RO(o) ((const __typeof__(*(o)._type) *)pmemobj_direct((o).oid))
#elif defined(__cplusplus)
/*
* XXX - On Windows, these macros do not behave exactly the same as on Linux.
*/
#define DIRECT_RW(o) \
(reinterpret_cast < __typeof__((o)._type) > (pmemobj_direct((o).oid)))
#define DIRECT_RO(o) \
(reinterpret_cast < const __typeof__((o)._type) > \
(pmemobj_direct((o).oid)))
#endif /* (defined(_MSC_VER) || defined(__cplusplus)) */
#define D_RW DIRECT_RW
#define D_RO DIRECT_RO
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/types.h */
| 4,701 | 21.825243 | 78 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/base.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2019, Intel Corporation */
/*
* libpmemobj/base.h -- definitions of base libpmemobj entry points
*/
#ifndef LIBPMEMOBJ_BASE_H
#define LIBPMEMOBJ_BASE_H 1
#ifndef __STDC_LIMIT_MACROS
#define __STDC_LIMIT_MACROS
#endif
#include <stddef.h>
#include <stdint.h>
#ifdef _WIN32
#include <pmemcompat.h>
#ifndef PMDK_UTF8_API
#define pmemobj_check_version pmemobj_check_versionW
#define pmemobj_errormsg pmemobj_errormsgW
#else
#define pmemobj_check_version pmemobj_check_versionU
#define pmemobj_errormsg pmemobj_errormsgU
#endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
/*
* opaque type internal to libpmemobj
*/
typedef struct pmemobjpool PMEMobjpool;
#define PMEMOBJ_MAX_ALLOC_SIZE ((size_t)0x3FFDFFFC0)
/*
* allocation functions flags
*/
#define POBJ_FLAG_ZERO (((uint64_t)1) << 0)
#define POBJ_FLAG_NO_FLUSH (((uint64_t)1) << 1)
#define POBJ_FLAG_NO_SNAPSHOT (((uint64_t)1) << 2)
#define POBJ_FLAG_ASSUME_INITIALIZED (((uint64_t)1) << 3)
#define POBJ_FLAG_TX_NO_ABORT (((uint64_t)1) << 4)
#define POBJ_CLASS_ID(id) (((uint64_t)(id)) << 48)
#define POBJ_ARENA_ID(id) (((uint64_t)(id)) << 32)
#define POBJ_XALLOC_CLASS_MASK ((((uint64_t)1 << 16) - 1) << 48)
#define POBJ_XALLOC_ARENA_MASK ((((uint64_t)1 << 16) - 1) << 32)
#define POBJ_XALLOC_ZERO POBJ_FLAG_ZERO
#define POBJ_XALLOC_NO_FLUSH POBJ_FLAG_NO_FLUSH
#define POBJ_XALLOC_NO_ABORT POBJ_FLAG_TX_NO_ABORT
/*
* pmemobj_mem* flags
*/
#define PMEMOBJ_F_MEM_NODRAIN (1U << 0)
#define PMEMOBJ_F_MEM_NONTEMPORAL (1U << 1)
#define PMEMOBJ_F_MEM_TEMPORAL (1U << 2)
#define PMEMOBJ_F_MEM_WC (1U << 3)
#define PMEMOBJ_F_MEM_WB (1U << 4)
#define PMEMOBJ_F_MEM_NOFLUSH (1U << 5)
/*
* pmemobj_mem*, pmemobj_xflush & pmemobj_xpersist flags
*/
#define PMEMOBJ_F_RELAXED (1U << 31)
/*
* Persistent memory object
*/
/*
* Object handle
*/
typedef struct pmemoid {
uint64_t pool_uuid_lo;
uint64_t off;
} PMEMoid;
static const PMEMoid OID_NULL = { 0, 0 };
#define OID_IS_NULL(o) ((o).off == 0)
#define OID_EQUALS(lhs, rhs)\
((lhs).off == (rhs).off &&\
(lhs).pool_uuid_lo == (rhs).pool_uuid_lo)
PMEMobjpool *pmemobj_pool_by_ptr(const void *addr);
PMEMobjpool *pmemobj_pool_by_oid(PMEMoid oid);
#ifndef _WIN32
extern int _pobj_cache_invalidate;
extern __thread struct _pobj_pcache {
PMEMobjpool *pop;
uint64_t uuid_lo;
int invalidate;
} _pobj_cached_pool;
/*
* Returns the direct pointer of an object.
*/
static inline void *
pmemobj_direct_inline(PMEMoid oid)
{
if (oid.off == 0 || oid.pool_uuid_lo == 0)
return NULL;
struct _pobj_pcache *cache = &_pobj_cached_pool;
if (_pobj_cache_invalidate != cache->invalidate ||
cache->uuid_lo != oid.pool_uuid_lo) {
cache->invalidate = _pobj_cache_invalidate;
if (!(cache->pop = pmemobj_pool_by_oid(oid))) {
cache->uuid_lo = 0;
return NULL;
}
cache->uuid_lo = oid.pool_uuid_lo;
}
return (void *)((uintptr_t)cache->pop + oid.off);
}
#endif /* _WIN32 */
/*
* Returns the direct pointer of an object.
*/
#if defined(_WIN32) || defined(_PMEMOBJ_INTRNL) ||\
defined(PMEMOBJ_DIRECT_NON_INLINE)
void *pmemobj_direct(PMEMoid oid);
#else
#define pmemobj_direct pmemobj_direct_inline
#endif
struct pmemvlt {
uint64_t runid;
};
#define PMEMvlt(T)\
struct {\
struct pmemvlt vlt;\
T value;\
}
/*
* Returns lazily initialized volatile variable. (EXPERIMENTAL)
*/
void *pmemobj_volatile(PMEMobjpool *pop, struct pmemvlt *vlt,
void *ptr, size_t size,
int (*constr)(void *ptr, void *arg), void *arg);
/*
* Returns the OID of the object pointed to by addr.
*/
PMEMoid pmemobj_oid(const void *addr);
/*
* Returns the number of usable bytes in the object. May be greater than
* the requested size of the object because of internal alignment.
*
* Can be used with objects allocated by any of the available methods.
*/
size_t pmemobj_alloc_usable_size(PMEMoid oid);
/*
* Returns the type number of the object.
*/
uint64_t pmemobj_type_num(PMEMoid oid);
/*
* Pmemobj specific low-level memory manipulation functions.
*
* These functions are meant to be used with pmemobj pools, because they provide
* additional functionality specific to this type of pool. These may include
* for example replication support. They also take advantage of the knowledge
* of the type of memory in the pool (pmem/non-pmem) to assure persistence.
*/
/*
* Pmemobj version of memcpy. Data copied is made persistent.
*/
void *pmemobj_memcpy_persist(PMEMobjpool *pop, void *dest, const void *src,
size_t len);
/*
* Pmemobj version of memset. Data range set is made persistent.
*/
void *pmemobj_memset_persist(PMEMobjpool *pop, void *dest, int c, size_t len);
/*
* Pmemobj version of memcpy. Data copied is made persistent (unless opted-out
* using flags).
*/
void *pmemobj_memcpy(PMEMobjpool *pop, void *dest, const void *src, size_t len,
unsigned flags);
/*
* Pmemobj version of memmove. Data copied is made persistent (unless opted-out
* using flags).
*/
void *pmemobj_memmove(PMEMobjpool *pop, void *dest, const void *src, size_t len,
unsigned flags);
/*
* Pmemobj version of memset. Data range set is made persistent (unless
* opted-out using flags).
*/
void *pmemobj_memset(PMEMobjpool *pop, void *dest, int c, size_t len,
unsigned flags);
/*
* Pmemobj version of pmem_persist.
*/
void pmemobj_persist(PMEMobjpool *pop, const void *addr, size_t len);
/*
* Pmemobj version of pmem_persist with additional flags argument.
*/
int pmemobj_xpersist(PMEMobjpool *pop, const void *addr, size_t len,
unsigned flags);
/*
* Pmemobj version of pmem_flush.
*/
void pmemobj_flush(PMEMobjpool *pop, const void *addr, size_t len);
/*
* Pmemobj version of pmem_flush with additional flags argument.
*/
int pmemobj_xflush(PMEMobjpool *pop, const void *addr, size_t len,
unsigned flags);
/*
* Pmemobj version of pmem_drain.
*/
void pmemobj_drain(PMEMobjpool *pop);
/*
* Version checking.
*/
/*
* PMEMOBJ_MAJOR_VERSION and PMEMOBJ_MINOR_VERSION provide the current version
* of the libpmemobj API as provided by this header file. Applications can
* verify that the version available at run-time is compatible with the version
* used at compile-time by passing these defines to pmemobj_check_version().
*/
#define PMEMOBJ_MAJOR_VERSION 2
#define PMEMOBJ_MINOR_VERSION 4
#ifndef _WIN32
const char *pmemobj_check_version(unsigned major_required,
unsigned minor_required);
#else
const char *pmemobj_check_versionU(unsigned major_required,
unsigned minor_required);
const wchar_t *pmemobj_check_versionW(unsigned major_required,
unsigned minor_required);
#endif
/*
* Passing NULL to pmemobj_set_funcs() tells libpmemobj to continue to use the
* default for that function. The replacement functions must not make calls
* back into libpmemobj.
*/
void pmemobj_set_funcs(
void *(*malloc_func)(size_t size),
void (*free_func)(void *ptr),
void *(*realloc_func)(void *ptr, size_t size),
char *(*strdup_func)(const char *s));
typedef int (*pmemobj_constr)(PMEMobjpool *pop, void *ptr, void *arg);
/*
* (debug helper function) logs notice message if used inside a transaction
*/
void _pobj_debug_notice(const char *func_name, const char *file, int line);
#ifndef _WIN32
const char *pmemobj_errormsg(void);
#else
const char *pmemobj_errormsgU(void);
const wchar_t *pmemobj_errormsgW(void);
#endif
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/base.h */
| 7,415 | 23.72 | 80 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/tx.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2019, Intel Corporation */
/*
* libpmemobj/tx.h -- definitions of libpmemobj transactional macros
*/
#ifndef LIBPMEMOBJ_TX_H
#define LIBPMEMOBJ_TX_H 1
#include <errno.h>
#include <string.h>
#include <libpmemobj/tx_base.h>
#include <libpmemobj/types.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifdef POBJ_TX_CRASH_ON_NO_ONABORT
#define TX_ONABORT_CHECK do {\
if (_stage == TX_STAGE_ONABORT)\
abort();\
} while (0)
#else
#define TX_ONABORT_CHECK do {} while (0)
#endif
#define _POBJ_TX_BEGIN(pop, ...)\
{\
jmp_buf _tx_env;\
enum pobj_tx_stage _stage;\
int _pobj_errno;\
if (setjmp(_tx_env)) {\
errno = pmemobj_tx_errno();\
} else {\
_pobj_errno = pmemobj_tx_begin(pop, _tx_env, __VA_ARGS__,\
TX_PARAM_NONE);\
if (_pobj_errno)\
errno = _pobj_errno;\
}\
while ((_stage = pmemobj_tx_stage()) != TX_STAGE_NONE) {\
switch (_stage) {\
case TX_STAGE_WORK:
#define TX_BEGIN_PARAM(pop, ...)\
_POBJ_TX_BEGIN(pop, ##__VA_ARGS__)
#define TX_BEGIN_LOCK TX_BEGIN_PARAM
/* Just to let compiler warn when incompatible function pointer is used */
static inline pmemobj_tx_callback
_pobj_validate_cb_sig(pmemobj_tx_callback cb)
{
return cb;
}
#define TX_BEGIN_CB(pop, cb, arg, ...) _POBJ_TX_BEGIN(pop, TX_PARAM_CB,\
_pobj_validate_cb_sig(cb), arg, ##__VA_ARGS__)
#define TX_BEGIN(pop) _POBJ_TX_BEGIN(pop, TX_PARAM_NONE)
#define TX_ONABORT\
pmemobj_tx_process();\
break;\
case TX_STAGE_ONABORT:
#define TX_ONCOMMIT\
pmemobj_tx_process();\
break;\
case TX_STAGE_ONCOMMIT:
#define TX_FINALLY\
pmemobj_tx_process();\
break;\
case TX_STAGE_FINALLY:
#define TX_END\
pmemobj_tx_process();\
break;\
default:\
TX_ONABORT_CHECK;\
pmemobj_tx_process();\
break;\
}\
}\
_pobj_errno = pmemobj_tx_end();\
if (_pobj_errno)\
errno = _pobj_errno;\
}
#define TX_ADD(o)\
pmemobj_tx_add_range((o).oid, 0, sizeof(*(o)._type))
#define TX_ADD_FIELD(o, field)\
TX_ADD_DIRECT(&(D_RO(o)->field))
#define TX_ADD_DIRECT(p)\
pmemobj_tx_add_range_direct(p, sizeof(*(p)))
#define TX_ADD_FIELD_DIRECT(p, field)\
pmemobj_tx_add_range_direct(&(p)->field, sizeof((p)->field))
#define TX_XADD(o, flags)\
pmemobj_tx_xadd_range((o).oid, 0, sizeof(*(o)._type), flags)
#define TX_XADD_FIELD(o, field, flags)\
TX_XADD_DIRECT(&(D_RO(o)->field), flags)
#define TX_XADD_DIRECT(p, flags)\
pmemobj_tx_xadd_range_direct(p, sizeof(*(p)), flags)
#define TX_XADD_FIELD_DIRECT(p, field, flags)\
pmemobj_tx_xadd_range_direct(&(p)->field, sizeof((p)->field), flags)
#define TX_NEW(t)\
((TOID(t))pmemobj_tx_alloc(sizeof(t), TOID_TYPE_NUM(t)))
#define TX_ALLOC(t, size)\
((TOID(t))pmemobj_tx_alloc(size, TOID_TYPE_NUM(t)))
#define TX_ZNEW(t)\
((TOID(t))pmemobj_tx_zalloc(sizeof(t), TOID_TYPE_NUM(t)))
#define TX_ZALLOC(t, size)\
((TOID(t))pmemobj_tx_zalloc(size, TOID_TYPE_NUM(t)))
#define TX_XALLOC(t, size, flags)\
((TOID(t))pmemobj_tx_xalloc(size, TOID_TYPE_NUM(t), flags))
/* XXX - not available when compiled with VC++ as C code (/TC) */
#if !defined(_MSC_VER) || defined(__cplusplus)
#define TX_REALLOC(o, size)\
((__typeof__(o))pmemobj_tx_realloc((o).oid, size, TOID_TYPE_NUM_OF(o)))
#define TX_ZREALLOC(o, size)\
((__typeof__(o))pmemobj_tx_zrealloc((o).oid, size, TOID_TYPE_NUM_OF(o)))
#endif /* !defined(_MSC_VER) || defined(__cplusplus) */
#define TX_STRDUP(s, type_num)\
pmemobj_tx_strdup(s, type_num)
#define TX_XSTRDUP(s, type_num, flags)\
pmemobj_tx_xstrdup(s, type_num, flags)
#define TX_WCSDUP(s, type_num)\
pmemobj_tx_wcsdup(s, type_num)
#define TX_XWCSDUP(s, type_num, flags)\
pmemobj_tx_xwcsdup(s, type_num, flags)
#define TX_FREE(o)\
pmemobj_tx_free((o).oid)
#define TX_XFREE(o, flags)\
pmemobj_tx_xfree((o).oid, flags)
#define TX_SET(o, field, value) (\
TX_ADD_FIELD(o, field),\
D_RW(o)->field = (value))
#define TX_SET_DIRECT(p, field, value) (\
TX_ADD_FIELD_DIRECT(p, field),\
(p)->field = (value))
static inline void *
TX_MEMCPY(void *dest, const void *src, size_t num)
{
pmemobj_tx_add_range_direct(dest, num);
return memcpy(dest, src, num);
}
static inline void *
TX_MEMSET(void *dest, int c, size_t num)
{
pmemobj_tx_add_range_direct(dest, num);
return memset(dest, c, num);
}
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/tx.h */
| 4,295 | 22.096774 | 74 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/atomic_base.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2019, Intel Corporation */
/*
* libpmemobj/atomic_base.h -- definitions of libpmemobj atomic entry points
*/
#ifndef LIBPMEMOBJ_ATOMIC_BASE_H
#define LIBPMEMOBJ_ATOMIC_BASE_H 1
#include <libpmemobj/base.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Non-transactional atomic allocations
*
* Those functions can be used outside transactions. The allocations are always
* aligned to the cache-line boundary.
*/
#define POBJ_XALLOC_VALID_FLAGS (POBJ_XALLOC_ZERO |\
POBJ_XALLOC_CLASS_MASK)
/*
* Allocates a new object from the pool and calls a constructor function before
* returning. It is guaranteed that allocated object is either properly
* initialized, or if it's interrupted before the constructor completes, the
* memory reserved for the object is automatically reclaimed.
*/
int pmemobj_alloc(PMEMobjpool *pop, PMEMoid *oidp, size_t size,
uint64_t type_num, pmemobj_constr constructor, void *arg);
/*
* Allocates with flags a new object from the pool.
*/
int pmemobj_xalloc(PMEMobjpool *pop, PMEMoid *oidp, size_t size,
uint64_t type_num, uint64_t flags,
pmemobj_constr constructor, void *arg);
/*
* Allocates a new zeroed object from the pool.
*/
int pmemobj_zalloc(PMEMobjpool *pop, PMEMoid *oidp, size_t size,
uint64_t type_num);
/*
* Resizes an existing object.
*/
int pmemobj_realloc(PMEMobjpool *pop, PMEMoid *oidp, size_t size,
uint64_t type_num);
/*
* Resizes an existing object, if extended new space is zeroed.
*/
int pmemobj_zrealloc(PMEMobjpool *pop, PMEMoid *oidp, size_t size,
uint64_t type_num);
/*
* Allocates a new object with duplicate of the string s.
*/
int pmemobj_strdup(PMEMobjpool *pop, PMEMoid *oidp, const char *s,
uint64_t type_num);
/*
* Allocates a new object with duplicate of the wide character string s.
*/
int pmemobj_wcsdup(PMEMobjpool *pop, PMEMoid *oidp, const wchar_t *s,
uint64_t type_num);
/*
* Frees an existing object.
*/
void pmemobj_free(PMEMoid *oidp);
struct pobj_defrag_result {
size_t total; /* number of processed objects */
size_t relocated; /* number of relocated objects */
};
/*
* Performs defragmentation on the provided array of objects.
*/
int pmemobj_defrag(PMEMobjpool *pop, PMEMoid **oidv, size_t oidcnt,
struct pobj_defrag_result *result);
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/atomic_base.h */
| 2,386 | 24.393617 | 79 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/thread.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2017, Intel Corporation */
/*
* libpmemobj/thread.h -- definitions of libpmemobj thread/locking entry points
*/
#ifndef LIBPMEMOBJ_THREAD_H
#define LIBPMEMOBJ_THREAD_H 1
#include <time.h>
#include <libpmemobj/base.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Locking.
*/
#define _POBJ_CL_SIZE 64 /* cache line size */
typedef union {
long long align;
char padding[_POBJ_CL_SIZE];
} PMEMmutex;
typedef union {
long long align;
char padding[_POBJ_CL_SIZE];
} PMEMrwlock;
typedef union {
long long align;
char padding[_POBJ_CL_SIZE];
} PMEMcond;
void pmemobj_mutex_zero(PMEMobjpool *pop, PMEMmutex *mutexp);
int pmemobj_mutex_lock(PMEMobjpool *pop, PMEMmutex *mutexp);
int pmemobj_mutex_timedlock(PMEMobjpool *pop, PMEMmutex *__restrict mutexp,
const struct timespec *__restrict abs_timeout);
int pmemobj_mutex_trylock(PMEMobjpool *pop, PMEMmutex *mutexp);
int pmemobj_mutex_unlock(PMEMobjpool *pop, PMEMmutex *mutexp);
void pmemobj_rwlock_zero(PMEMobjpool *pop, PMEMrwlock *rwlockp);
int pmemobj_rwlock_rdlock(PMEMobjpool *pop, PMEMrwlock *rwlockp);
int pmemobj_rwlock_wrlock(PMEMobjpool *pop, PMEMrwlock *rwlockp);
int pmemobj_rwlock_timedrdlock(PMEMobjpool *pop,
PMEMrwlock *__restrict rwlockp,
const struct timespec *__restrict abs_timeout);
int pmemobj_rwlock_timedwrlock(PMEMobjpool *pop,
PMEMrwlock *__restrict rwlockp,
const struct timespec *__restrict abs_timeout);
int pmemobj_rwlock_tryrdlock(PMEMobjpool *pop, PMEMrwlock *rwlockp);
int pmemobj_rwlock_trywrlock(PMEMobjpool *pop, PMEMrwlock *rwlockp);
int pmemobj_rwlock_unlock(PMEMobjpool *pop, PMEMrwlock *rwlockp);
void pmemobj_cond_zero(PMEMobjpool *pop, PMEMcond *condp);
int pmemobj_cond_broadcast(PMEMobjpool *pop, PMEMcond *condp);
int pmemobj_cond_signal(PMEMobjpool *pop, PMEMcond *condp);
int pmemobj_cond_timedwait(PMEMobjpool *pop, PMEMcond *__restrict condp,
PMEMmutex *__restrict mutexp,
const struct timespec *__restrict abs_timeout);
int pmemobj_cond_wait(PMEMobjpool *pop, PMEMcond *condp,
PMEMmutex *__restrict mutexp);
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/thread.h */
| 2,150 | 28.875 | 79 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/action.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2017-2018, Intel Corporation */
/*
* libpmemobj/action.h -- definitions of libpmemobj action interface
*/
#ifndef LIBPMEMOBJ_ACTION_H
#define LIBPMEMOBJ_ACTION_H 1
#include <libpmemobj/action_base.h>
#ifdef __cplusplus
extern "C" {
#endif
#define POBJ_RESERVE_NEW(pop, t, act)\
((TOID(t))pmemobj_reserve(pop, act, sizeof(t), TOID_TYPE_NUM(t)))
#define POBJ_RESERVE_ALLOC(pop, t, size, act)\
((TOID(t))pmemobj_reserve(pop, act, size, TOID_TYPE_NUM(t)))
#define POBJ_XRESERVE_NEW(pop, t, act, flags)\
((TOID(t))pmemobj_xreserve(pop, act, sizeof(t), TOID_TYPE_NUM(t), flags))
#define POBJ_XRESERVE_ALLOC(pop, t, size, act, flags)\
((TOID(t))pmemobj_xreserve(pop, act, size, TOID_TYPE_NUM(t), flags))
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/action_base.h */
| 829 | 23.411765 | 73 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/atomic.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2017, Intel Corporation */
/*
* libpmemobj/atomic.h -- definitions of libpmemobj atomic macros
*/
#ifndef LIBPMEMOBJ_ATOMIC_H
#define LIBPMEMOBJ_ATOMIC_H 1
#include <libpmemobj/atomic_base.h>
#include <libpmemobj/types.h>
#ifdef __cplusplus
extern "C" {
#endif
#define POBJ_NEW(pop, o, t, constr, arg)\
pmemobj_alloc((pop), (PMEMoid *)(o), sizeof(t), TOID_TYPE_NUM(t),\
(constr), (arg))
#define POBJ_ALLOC(pop, o, t, size, constr, arg)\
pmemobj_alloc((pop), (PMEMoid *)(o), (size), TOID_TYPE_NUM(t),\
(constr), (arg))
#define POBJ_ZNEW(pop, o, t)\
pmemobj_zalloc((pop), (PMEMoid *)(o), sizeof(t), TOID_TYPE_NUM(t))
#define POBJ_ZALLOC(pop, o, t, size)\
pmemobj_zalloc((pop), (PMEMoid *)(o), (size), TOID_TYPE_NUM(t))
#define POBJ_REALLOC(pop, o, t, size)\
pmemobj_realloc((pop), (PMEMoid *)(o), (size), TOID_TYPE_NUM(t))
#define POBJ_ZREALLOC(pop, o, t, size)\
pmemobj_zrealloc((pop), (PMEMoid *)(o), (size), TOID_TYPE_NUM(t))
#define POBJ_FREE(o)\
pmemobj_free((PMEMoid *)(o))
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/atomic.h */
| 1,115 | 23.26087 | 66 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/pool.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2017, Intel Corporation */
/*
* libpmemobj/pool.h -- definitions of libpmemobj pool macros
*/
#ifndef LIBPMEMOBJ_POOL_H
#define LIBPMEMOBJ_POOL_H 1
#include <libpmemobj/pool_base.h>
#include <libpmemobj/types.h>
#define POBJ_ROOT(pop, t) (\
(TOID(t))pmemobj_root((pop), sizeof(t)))
#endif /* libpmemobj/pool.h */
| 379 | 20.111111 | 61 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/src/include/libpmemobj/iterator_base.h | // SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2014-2019, Intel Corporation */
/*
* libpmemobj/iterator_base.h -- definitions of libpmemobj iterator entry points
*/
#ifndef LIBPMEMOBJ_ITERATOR_BASE_H
#define LIBPMEMOBJ_ITERATOR_BASE_H 1
#include <libpmemobj/base.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* The following functions allow access to the entire collection of objects.
*
* Use with conjunction with non-transactional allocations. Pmemobj pool acts
* as a generic container (list) of objects that are not assigned to any
* user-defined data structures.
*/
/*
* Returns the first object of the specified type number.
*/
PMEMoid pmemobj_first(PMEMobjpool *pop);
/*
* Returns the next object of the same type.
*/
PMEMoid pmemobj_next(PMEMoid oid);
#ifdef __cplusplus
}
#endif
#endif /* libpmemobj/iterator_base.h */
| 855 | 20.4 | 80 | h |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/magic-install.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2014-2017, Intel Corporation
#
# magic-install.sh -- Script for installing magic script
#
set -e
if ! grep -q "File: pmdk" /etc/magic
then
echo "Appending PMDK magic to /etc/magic"
cat /usr/share/pmdk/pmdk.magic >> /etc/magic
else
echo "PMDK magic already exists"
fi
| 343 | 20.5 | 56 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/md2man.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
#
#
# md2man.sh -- convert markdown to groff man pages
#
# usage: md2man.sh file template outfile
#
# This script converts markdown file into groff man page using pandoc.
# It performs some pre- and post-processing for better results:
# - uses m4 to preprocess OS-specific directives. See doc/macros.man.
# - parse input file for YAML metadata block and read man page title,
# section and version
# - cut-off metadata block and license
# - unindent code blocks
# - cut-off windows and web specific parts of documentation
#
# If the TESTOPTS variable is set, generates a preprocessed markdown file
# with the header stripped off for testing purposes.
#
set -e
set -o pipefail
filename=$1
template=$2
outfile=$3
title=`sed -n 's/^title:\ _MP(*\([A-Za-z0-9_-]*\).*$/\1/p' $filename`
section=`sed -n 's/^title:.*\([0-9]\))$/\1/p' $filename`
version=`sed -n 's/^date:\ *\(.*\)$/\1/p' $filename`
if [ "$TESTOPTS" != "" ]; then
m4 $TESTOPTS macros.man $filename | sed -n -e '/# NAME #/,$p' > $outfile
else
OPTS=
if [ "$WIN32" == 1 ]; then
OPTS="$OPTS -DWIN32"
else
OPTS="$OPTS -UWIN32"
fi
if [ "$(uname -s)" == "FreeBSD" ]; then
OPTS="$OPTS -DFREEBSD"
else
OPTS="$OPTS -UFREEBSD"
fi
if [ "$WEB" == 1 ]; then
OPTS="$OPTS -DWEB"
mkdir -p "$(dirname $outfile)"
m4 $OPTS macros.man $filename | sed -n -e '/---/,$p' > $outfile
else
SOURCE_DATE_EPOCH="${SOURCE_DATE_EPOCH:-$(date +%s)}"
COPYRIGHT=$(grep -rwI "\[comment]: <> (Copyright" $filename |\
sed "s/\[comment\]: <> (\([^)]*\))/\1/")
dt=$(date -u -d "@$SOURCE_DATE_EPOCH" +%F 2>/dev/null ||
date -u -r "$SOURCE_DATE_EPOCH" +%F 2>/dev/null || date -u +%F)
m4 $OPTS macros.man $filename | sed -n -e '/# NAME #/,$p' |\
pandoc -s -t man -o $outfile --template=$template \
-V title=$title -V section=$section \
-V date="$dt" -V version="$version" \
-V copyright="$COPYRIGHT"
fi
fi
| 1,955 | 27.764706 | 73 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/check-area.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2018-2020, Intel Corporation
#
# Finds applicable area name for specified commit id.
#
if [ -z "$1" ]; then
echo "Missing commit id argument."
exit 1
fi
files=$(git show $1 --format=oneline --name-only | grep -v -e "$1")
git show -q $1 | cat
echo
echo "Modified files:"
echo "$files"
function categorize() {
category=$1
shift
cat_files=`echo "$files" | grep $*`
if [ -n "${cat_files}" ]; then
echo "$category"
files=`echo "$files" | grep -v $*`
fi
}
echo
echo "Areas computed basing on the list of modified files: (see utils/check-area.sh for full algorithm)"
categorize core -e "^src/core/"
categorize pmem -e "^src/libpmem/" -e "^src/include/libpmem.h"
categorize pmem2 -e "^src/libpmem2/" -e "^src/include/libpmem2.h"
categorize rpmem -e "^src/librpmem/" -e "^src/include/librpmem.h" -e "^src/tools/rpmemd/" -e "^src/rpmem_common/"
categorize log -e "^src/libpmemlog/" -e "^src/include/libpmemlog.h"
categorize blk -e "^src/libpmemblk/" -e "^src/include/libpmemblk.h"
categorize obj -e "^src/libpmemobj/" -e "^src/include/libpmemobj.h" -e "^src/include/libpmemobj/"
categorize pool -e "^src/libpmempool/" -e "^src/include/libpmempool.h" -e "^src/tools/pmempool/"
categorize benchmark -e "^src/benchmarks/"
categorize examples -e "^src/examples/"
categorize daxio -e "^src/tools/daxio/"
categorize pmreorder -e "^src/tools/pmreorder/"
categorize test -e "^src/test/"
categorize doc -e "^doc/" -e ".md\$" -e "^ChangeLog" -e "README"
categorize common -e "^src/common/" \
-e "^utils/" \
-e ".inc\$" \
-e ".yml\$" \
-e ".gitattributes" \
-e ".gitignore" \
-e "^.mailmap\$" \
-e "^src/PMDK.sln\$" \
-e "Makefile\$" \
-e "^src/freebsd/" \
-e "^src/windows/" \
-e "^src/include/pmemcompat.h"
echo
echo "If the above list contains more than 1 entry, please consider splitting"
echo "your change into more commits, unless those changes don't make sense "
echo "individually (they do not build, tests do not pass, etc)."
echo "For example, it's perfectly fine to use 'obj' prefix for one commit that"
echo "changes libpmemobj source code, its tests and documentation."
if [ -n "$files" ]; then
echo
echo "Uncategorized files:"
echo "$files"
fi
| 2,340 | 30.213333 | 120 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/check-shebang.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2017-2019, Intel Corporation
#
# utils/check-shebang.sh -- interpreter directive check script
#
set -e
err_count=0
for file in $@ ; do
[ ! -f $file ] && continue
SHEBANG=`head -n1 $file | cut -d" " -f1`
[ "${SHEBANG:0:2}" != "#!" ] && continue
if [ "$SHEBANG" != "#!/usr/bin/env" -a $SHEBANG != "#!/bin/sh" ]; then
INTERP=`echo $SHEBANG | rev | cut -d"/" -f1 | rev`
echo "$file:1: error: invalid interpreter directive:" >&2
echo " (is: \"$SHEBANG\", should be: \"#!/usr/bin/env $INTERP\")" >&2
((err_count+=1))
fi
done
if [ "$err_count" == "0" ]; then
echo "Interpreter directives are OK."
else
echo "Found $err_count errors in interpreter directives!" >&2
err_count=1
fi
exit $err_count
| 787 | 24.419355 | 71 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/check-commits.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
#
# Used to check whether all the commit messages in a pull request
# follow the GIT/PMDK guidelines.
#
# usage: ./check-commits.sh [range]
#
if [ -z "$1" ]; then
# on CI run this check only for pull requests
if [ -n "$CI_REPO_SLUG" ]; then
if [[ "$CI_REPO_SLUG" != "$GITHUB_REPO" \
|| $CI_EVENT_TYPE != "pull_request" ]];
then
echo "SKIP: $0 can only be executed for pull requests to $GITHUB_REPO"
exit 0
fi
fi
# CI_COMMIT_RANGE can be invalid for force pushes - use another
# method to determine the list of commits
if [[ $(git rev-list $CI_COMMIT_RANGE 2>/dev/null) || -n "$CI_COMMIT_RANGE" ]]; then
MERGE_BASE=$(echo $CI_COMMIT_RANGE | cut -d. -f1)
[ -z $MERGE_BASE ] && \
MERGE_BASE=$(git log --pretty="%cN:%H" | grep GitHub | head -n1 | cut -d: -f2)
RANGE=$MERGE_BASE..$CI_COMMIT
else
MERGE_BASE=$(git log --pretty="%cN:%H" | grep GitHub | head -n1 | cut -d: -f2)
RANGE=$MERGE_BASE..HEAD
fi
else
RANGE="$1"
fi
COMMITS=$(git log --pretty=%H $RANGE)
set -e
for commit in $COMMITS; do
`dirname $0`/check-commit.sh $commit
done
| 1,174 | 25.704545 | 85 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/get_aliases.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2017-2020, Intel Corporation
#
#
# get_aliases.sh -- generate map of manuals functions and libraries
#
# usage: run from /pmdk/doc/generated location without parameters:
# ./../../utils/get_aliases.sh
#
# This script searches manpages from section 7 then
# takes all functions from each section using specified pattern
# and at the end to every function it assign real markdown file
# representation based on *.gz file content
#
# Generated libs_map.yml file is used on gh-pages
# to handle functions and their aliases
#
list=("$@")
man_child=("$@")
function search_aliases {
children=$1
parent=$2
for i in ${children[@]}
do
if [ -e ../$parent/$i ]
then
echo "Man: $i"
content=$(head -c 150 ../$parent/$i)
if [[ "$content" == ".so "* ]] ;
then
content=$(basename ${content#".so"})
i="${i%.*}"
echo " $i: $content" >> $map_file
else
r="${i%.*}"
echo " $r: $i" >> $map_file
fi
fi
done
}
function list_pages {
parent="${1%.*}"
list=("$@")
man_child=("$@")
if [ "$parent" == "libpmem" ]; then
man_child=($(ls -1 ../libpmem | grep -e ".*\.3$"))
echo -n "- $parent: " >> $map_file
echo "${man_child[@]}" >> $map_file
fi
if [ "$parent" == "libpmem2" ]; then
man_child=($(ls -1 ../libpmem2 | grep -e ".*\.3$"))
echo -n "- $parent: " >> $map_file
echo "${man_child[@]}" >> $map_file
fi
if [ "$parent" == "libpmemblk" ]; then
man_child=($(ls -1 ../libpmemblk | grep -e ".*\.3$"))
echo -n "- $parent: " >> $map_file
echo "${man_child[@]}" >> $map_file
fi
if [ "$parent" == "libpmemlog" ]; then
man_child=($(ls -1 ../libpmemlog | grep -e ".*\.3$"))
echo -n "- $parent: " >> $map_file
echo "${man_child[@]}" >> $map_file
fi
if [ "$parent" == "libpmemobj" ]; then
man_child=($(ls -1 ../libpmemobj | grep -e ".*\.3$"))
echo -n "- $parent: " >> $map_file
echo "${man_child[@]}" >> $map_file
fi
if [ "$parent" == "libpmempool" ]; then
man_child=($(ls -1 ../libpmempool | grep -e ".*\.3$"))
echo -n "- $parent: " >> $map_file
echo "${man_child[@]}" >> $map_file
fi
if [ "$parent" == "librpmem" ]; then
man_child=($(ls -1 ../librpmem | grep -e ".*\.3$"))
echo -n "- $parent: " >> $map_file
echo "${man_child[@]}" >> $map_file
fi
if [ ${#man_child[@]} -ne 0 ]
then
list=${man_child[@]}
search_aliases "${list[@]}" "$parent"
fi
}
man7=($(ls -1 ../*/ | grep -e ".*\.7$"))
map_file=libs_map.yml
[ -e $map_file ] && rm $map_file
touch $map_file
for i in "${man7[@]}"
do
echo "Library: $i"
list_pages $i
done
| 2,570 | 22.162162 | 67 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/copy-source.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2018, Intel Corporation
#
# utils/copy-source.sh -- copy source files (from HEAD) to 'path_to_dir/pmdk'
# directory whether in git repository or not.
#
# usage: ./copy-source.sh [path_to_dir] [srcversion]
set -e
DESTDIR="$1"
SRCVERSION=$2
if [ -d .git ]; then
if [ -n "$(git status --porcelain)" ]; then
echo "Error: Working directory is dirty: $(git status --porcelain)"
exit 1
fi
else
echo "Warning: You are not in git repository, working directory might be dirty."
fi
mkdir -p "$DESTDIR"/pmdk
echo -n $SRCVERSION > "$DESTDIR"/pmdk/.version
if [ -d .git ]; then
git archive HEAD | tar -x -C "$DESTDIR"/pmdk
else
find . \
-maxdepth 1 \
-not -name $(basename "$DESTDIR") \
-not -name . \
-exec cp -r "{}" "$DESTDIR"/pmdk \;
fi
| 818 | 21.135135 | 81 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/check-commit.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
#
# Used to check whether all the commit messages in a pull request
# follow the GIT/PMDK guidelines.
#
# usage: ./check-commit.sh commit
#
if [ -z "$1" ]; then
echo "Usage: check-commit.sh commit-id"
exit 1
fi
echo "Checking $1"
subject=$(git log --format="%s" -n 1 $1)
if [[ $subject =~ ^Merge.* ]]; then
# skip
exit 0
fi
if [[ $subject =~ ^Revert.* ]]; then
# skip
exit 0
fi
# valid area names
AREAS="pmem\|pmem2\|rpmem\|log\|blk\|obj\|pool\|test\|benchmark\|examples\|doc\|core\|common\|daxio\|pmreorder"
prefix=$(echo $subject | sed -n "s/^\($AREAS\)\:.*/\1/p")
if [ "$prefix" = "" ]; then
echo "FAIL: subject line in commit message does not contain valid area name"
echo
`dirname $0`/check-area.sh $1
exit 1
fi
commit_len=$(git log --format="%s%n%b" -n 1 $1 | wc -L)
if [ $commit_len -gt 73 ]; then
echo "FAIL: commit message exceeds 72 chars per line (commit_len)"
echo
git log -n 1 $1 | cat
exit 1
fi
| 1,035 | 19.313725 | 111 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/build-rpm.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2014-2019, Intel Corporation
#
# build-rpm.sh - Script for building rpm packages
#
set -e
SCRIPT_DIR=$(dirname $0)
source $SCRIPT_DIR/pkg-common.sh
check_tool rpmbuild
check_file $SCRIPT_DIR/pkg-config.sh
source $SCRIPT_DIR/pkg-config.sh
#
# usage -- print usage message and exit
#
usage()
{
[ "$1" ] && echo Error: $1
cat >&2 <<EOF
Usage: $0 [ -h ] -t version-tag -s source-dir -w working-dir -o output-dir
[ -d distro ] [ -e build-experimental ] [ -c run-check ]
[ -r build-rpmem ] [ -n with-ndctl ] [ -f testconfig-file ]
[ -p build-libpmem2 ]
-h print this help message
-t version-tag source version tag
-s source-dir source directory
-w working-dir working directory
-o output-dir output directory
-d distro Linux distro name
-e build-experimental build experimental packages
-c run-check run package check
-r build-rpmem build librpmem and rpmemd packages
-n with-ndctl build with libndctl
-f testconfig-file custom testconfig.sh
-p build-libpmem2 build libpmem2 packages
EOF
exit 1
}
#
# command-line argument processing...
#
args=`getopt he:c:r:n:t:d:s:w:o:f:p: $*`
[ $? != 0 ] && usage
set -- $args
for arg
do
receivetype=auto
case "$arg"
in
-e)
EXPERIMENTAL="$2"
shift 2
;;
-c)
BUILD_PACKAGE_CHECK="$2"
shift 2
;;
-f)
TEST_CONFIG_FILE="$2"
shift 2
;;
-r)
BUILD_RPMEM="$2"
shift 2
;;
-n)
NDCTL_ENABLE="$2"
shift 2
;;
-t)
PACKAGE_VERSION_TAG="$2"
shift 2
;;
-s)
SOURCE="$2"
shift 2
;;
-w)
WORKING_DIR="$2"
shift 2
;;
-o)
OUT_DIR="$2"
shift 2
;;
-d)
DISTRO="$2"
shift 2
;;
-p)
PMEM2_INSTALL="$2"
shift 2
;;
--)
shift
break
;;
esac
done
# check for mandatory arguments
if [ -z "$PACKAGE_VERSION_TAG" -o -z "$SOURCE" -o -z "$WORKING_DIR" -o -z "$OUT_DIR" ]
then
error "Mandatory arguments missing"
usage
fi
# detected distro or defined in cmd
if [ -z "${DISTRO}" ]
then
OS=$(get_os)
if [ "$OS" != "1" ]
then
echo "Detected OS: $OS"
DISTRO=$OS
else
error "Unknown distribution"
exit 1
fi
fi
if [ "$EXTRA_CFLAGS_RELEASE" = "" ]; then
export EXTRA_CFLAGS_RELEASE="-ggdb -fno-omit-frame-pointer"
fi
LIBFABRIC_MIN_VERSION=1.4.2
NDCTL_MIN_VERSION=60.1
RPMBUILD_OPTS=( )
PACKAGE_VERSION=$(get_version $PACKAGE_VERSION_TAG)
if [ -z "$PACKAGE_VERSION" ]
then
error "Can not parse version from '${PACKAGE_VERSION_TAG}'"
exit 1
fi
PACKAGE_SOURCE=${PACKAGE_NAME}-${PACKAGE_VERSION}
SOURCE=$PACKAGE_NAME
PACKAGE_TARBALL=$PACKAGE_SOURCE.tar.gz
RPM_SPEC_FILE=$PACKAGE_SOURCE/$PACKAGE_NAME.spec
MAGIC_INSTALL=$PACKAGE_SOURCE/utils/magic-install.sh
MAGIC_UNINSTALL=$PACKAGE_SOURCE/utils/magic-uninstall.sh
OLDPWD=$PWD
[ -d $WORKING_DIR ] || mkdir -v $WORKING_DIR
[ -d $OUT_DIR ] || mkdir $OUT_DIR
cd $WORKING_DIR
check_dir $SOURCE
mv $SOURCE $PACKAGE_SOURCE
if [ "$DISTRO" = "SLES_like" ]
then
RPM_LICENSE="BSD-3-Clause"
RPM_GROUP_SYS_BASE="System\/Base"
RPM_GROUP_SYS_LIBS="System\/Libraries"
RPM_GROUP_DEV_LIBS="Development\/Libraries\/C and C++"
RPM_PKG_NAME_SUFFIX="1"
RPM_MAKE_FLAGS="BINDIR=""%_bindir"" NORPATH=1"
RPM_MAKE_INSTALL="%fdupes %{buildroot}\/%{_prefix}"
else
RPM_LICENSE="BSD"
RPM_GROUP_SYS_BASE="System Environment\/Base"
RPM_GROUP_SYS_LIBS="System Environment\/Libraries"
RPM_GROUP_DEV_LIBS="Development\/Libraries"
RPM_PKG_NAME_SUFFIX=""
RPM_MAKE_FLAGS="NORPATH=1"
RPM_MAKE_INSTALL=""
fi
#
# Create parametrized spec file required by rpmbuild.
# Most of variables are set in pkg-config.sh file in order to
# keep descriptive values separately from this script.
#
sed -e "s/__VERSION__/$PACKAGE_VERSION/g" \
-e "s/__LICENSE__/$RPM_LICENSE/g" \
-e "s/__PACKAGE_MAINTAINER__/$PACKAGE_MAINTAINER/g" \
-e "s/__PACKAGE_SUMMARY__/$PACKAGE_SUMMARY/g" \
-e "s/__GROUP_SYS_BASE__/$RPM_GROUP_SYS_BASE/g" \
-e "s/__GROUP_SYS_LIBS__/$RPM_GROUP_SYS_LIBS/g" \
-e "s/__GROUP_DEV_LIBS__/$RPM_GROUP_DEV_LIBS/g" \
-e "s/__PKG_NAME_SUFFIX__/$RPM_PKG_NAME_SUFFIX/g" \
-e "s/__MAKE_FLAGS__/$RPM_MAKE_FLAGS/g" \
-e "s/__MAKE_INSTALL_FDUPES__/$RPM_MAKE_INSTALL/g" \
-e "s/__LIBFABRIC_MIN_VER__/$LIBFABRIC_MIN_VERSION/g" \
-e "s/__NDCTL_MIN_VER__/$NDCTL_MIN_VERSION/g" \
$OLDPWD/$SCRIPT_DIR/pmdk.spec.in > $RPM_SPEC_FILE
if [ "$DISTRO" = "SLES_like" ]
then
sed -i '/^#.*bugzilla.redhat/d' $RPM_SPEC_FILE
fi
# do not split on space
IFS=$'\n'
# experimental features
if [ "${EXPERIMENTAL}" = "y" ]
then
# no experimental features for now
RPMBUILD_OPTS+=( )
fi
# libpmem2
if [ "${PMEM2_INSTALL}" == "y" ]
then
RPMBUILD_OPTS+=(--define "_pmem2_install 1")
fi
# librpmem & rpmemd
if [ "${BUILD_RPMEM}" = "y" ]
then
RPMBUILD_OPTS+=(--with fabric)
else
RPMBUILD_OPTS+=(--without fabric)
fi
# daxio & RAS
if [ "${NDCTL_ENABLE}" = "n" ]
then
RPMBUILD_OPTS+=(--without ndctl)
else
RPMBUILD_OPTS+=(--with ndctl)
fi
# use specified testconfig file or default
if [[( -n "${TEST_CONFIG_FILE}") && ( -f "$TEST_CONFIG_FILE" ) ]]
then
echo "Test config file: $TEST_CONFIG_FILE"
RPMBUILD_OPTS+=(--define "_testconfig $TEST_CONFIG_FILE")
else
echo -e "Test config file $TEST_CONFIG_FILE does not exist.\n"\
"Default test config will be used."
fi
# run make check or not
if [ "${BUILD_PACKAGE_CHECK}" == "n" ]
then
RPMBUILD_OPTS+=(--define "_skip_check 1")
fi
tar zcf $PACKAGE_TARBALL $PACKAGE_SOURCE
# Create directory structure for rpmbuild
mkdir -v BUILD SPECS
echo "opts: ${RPMBUILD_OPTS[@]}"
rpmbuild --define "_topdir `pwd`"\
--define "_rpmdir ${OUT_DIR}"\
--define "_srcrpmdir ${OUT_DIR}"\
-ta $PACKAGE_TARBALL \
${RPMBUILD_OPTS[@]}
echo "Building rpm packages done"
exit 0
| 5,618 | 19.966418 | 86 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/pkg-common.sh | # SPDX-License-Identifier: BSD-3-Clause
# Copyright 2014-2019, Intel Corporation
#
# pkg-common.sh - common functions and variables for building packages
#
export LC_ALL="C"
function error() {
echo -e "error: $@"
}
function check_dir() {
if [ ! -d $1 ]
then
error "Directory '$1' does not exist."
exit 1
fi
}
function check_file() {
if [ ! -f $1 ]
then
error "File '$1' does not exist."
exit 1
fi
}
function check_tool() {
local tool=$1
if [ -z "$(which $tool 2>/dev/null)" ]
then
error "'${tool}' not installed or not in PATH"
exit 1
fi
}
function get_version() {
echo -n $1 | sed "s/-rc/~rc/"
}
function get_os() {
if [ -f /etc/os-release ]
then
local OS=$(cat /etc/os-release | grep -m1 -o -P '(?<=NAME=).*($)')
[[ "$OS" =~ SLES|openSUSE ]] && echo -n "SLES_like" ||
([[ "$OS" =~ "Fedora"|"Red Hat"|"CentOS" ]] && echo -n "RHEL_like" || echo 1)
else
echo 1
fi
}
REGEX_DATE_AUTHOR="([a-zA-Z]{3} [a-zA-Z]{3} [0-9]{2} [0-9]{4})\s*(.*)"
REGEX_MESSAGE_START="\s*\*\s*(.*)"
REGEX_MESSAGE="\s*(\S.*)"
| 1,042 | 17.298246 | 79 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/build-dpkg.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2014-2020, Intel Corporation
#
# build-dpkg.sh - Script for building deb packages
#
set -e
SCRIPT_DIR=$(dirname $0)
source $SCRIPT_DIR/pkg-common.sh
#
# usage -- print usage message and exit
#
usage()
{
[ "$1" ] && echo Error: $1
cat >&2 <<EOF
Usage: $0 [ -h ] -t version-tag -s source-dir -w working-dir -o output-dir
[ -e build-experimental ] [ -c run-check ]
[ -n with-ndctl ] [ -f testconfig-file ]
[ -p build-libpmem2 ]
-h print this help message
-t version-tag source version tag
-s source-dir source directory
-w working-dir working directory
-o output-dir output directory
-e build-experimental build experimental packages
-c run-check run package check
-n with-ndctl build with libndctl
-f testconfig-file custom testconfig.sh
-p build-libpmem2 build libpmem2 packages
EOF
exit 1
}
#
# command-line argument processing...
#
args=`getopt he:c:r:n:t:d:s:w:o:f:p: $*`
[ $? != 0 ] && usage
set -- $args
for arg
do
receivetype=auto
case "$arg"
in
-e)
EXPERIMENTAL="$2"
shift 2
;;
-c)
BUILD_PACKAGE_CHECK="$2"
shift 2
;;
-f)
TEST_CONFIG_FILE="$2"
shift 2
;;
-r)
BUILD_RPMEM="$2"
shift 2
;;
-n)
NDCTL_ENABLE="$2"
shift 2
;;
-t)
PACKAGE_VERSION_TAG="$2"
shift 2
;;
-s)
SOURCE="$2"
shift 2
;;
-w)
WORKING_DIR="$2"
shift 2
;;
-o)
OUT_DIR="$2"
shift 2
;;
-p)
PMEM2_INSTALL="$2"
shift 2
;;
--)
shift
break
;;
esac
done
# check for mandatory arguments
if [ -z "$PACKAGE_VERSION_TAG" -o -z "$SOURCE" -o -z "$WORKING_DIR" -o -z "$OUT_DIR" ]
then
error "Mandatory arguments missing"
usage
fi
PREFIX=usr
LIB_DIR=$PREFIX/lib/$(dpkg-architecture -qDEB_HOST_MULTIARCH)
INC_DIR=$PREFIX/include
MAN1_DIR=$PREFIX/share/man/man1
MAN3_DIR=$PREFIX/share/man/man3
MAN5_DIR=$PREFIX/share/man/man5
MAN7_DIR=$PREFIX/share/man/man7
DOC_DIR=$PREFIX/share/doc
if [ "$EXTRA_CFLAGS_RELEASE" = "" ]; then
export EXTRA_CFLAGS_RELEASE="-ggdb -fno-omit-frame-pointer"
fi
LIBFABRIC_MIN_VERSION=1.4.2
NDCTL_MIN_VERSION=60.1
function convert_changelog() {
while read line
do
if [[ $line =~ $REGEX_DATE_AUTHOR ]]
then
DATE="${BASH_REMATCH[1]}"
AUTHOR="${BASH_REMATCH[2]}"
echo " * ${DATE} ${AUTHOR}"
elif [[ $line =~ $REGEX_MESSAGE_START ]]
then
MESSAGE="${BASH_REMATCH[1]}"
echo " - ${MESSAGE}"
elif [[ $line =~ $REGEX_MESSAGE ]]
then
MESSAGE="${BASH_REMATCH[1]}"
echo " ${MESSAGE}"
fi
done < $1
}
function rpmem_install_triggers_overrides() {
cat << EOF > debian/librpmem.install
$LIB_DIR/librpmem.so.*
EOF
cat << EOF > debian/librpmem.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
librpmem: package-name-doesnt-match-sonames
EOF
cat << EOF > debian/librpmem-dev.install
$LIB_DIR/pmdk_debug/librpmem.a $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/librpmem.so $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/librpmem.so.* $LIB_DIR/pmdk_dbg/
$LIB_DIR/librpmem.so
$LIB_DIR/pkgconfig/librpmem.pc
$INC_DIR/librpmem.h
$MAN7_DIR/librpmem.7
$MAN3_DIR/rpmem_*.3
EOF
cat << EOF > debian/librpmem-dev.triggers
interest man-db
EOF
cat << EOF > debian/librpmem-dev.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
# The following warnings are triggered by a bug in debhelper:
# https://bugs.debian.org/204975
postinst-has-useless-call-to-ldconfig
postrm-has-useless-call-to-ldconfig
# We do not want to compile with -O2 for debug version
hardening-no-fortify-functions $LIB_DIR/pmdk_dbg/*
EOF
cat << EOF > debian/rpmemd.install
usr/bin/rpmemd
$MAN1_DIR/rpmemd.1
EOF
cat << EOF > debian/rpmemd.triggers
interest man-db
EOF
cat << EOF > debian/rpmemd.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
EOF
}
function append_rpmem_control() {
cat << EOF >> $CONTROL_FILE
Package: librpmem
Architecture: any
Depends: \${shlibs:Depends}, \${misc:Depends}
Description: Persistent Memory remote access support library
librpmem provides low-level support for remote access to persistent memory
(pmem) utilizing RDMA-capable RNICs. The library can be used to replicate
remotely a memory region over RDMA protocol. It utilizes appropriate
persistency mechanism based on remote node’s platform capabilities. The
librpmem utilizes the ssh client to authenticate a user on remote node and for
encryption of connection’s out-of-band configuration data.
.
This library is for applications that use remote persistent memory directly,
without the help of any library-supplied transactions or memory allocation.
Higher-level libraries that build on libpmem are available and are recommended
for most applications.
Package: librpmem-dev
Section: libdevel
Architecture: any
Depends: librpmem (=\${binary:Version}), libpmem-dev, \${shlibs:Depends}, \${misc:Depends}
Description: Development files for librpmem
librpmem provides low-level support for remote access to persistent memory
(pmem) utilizing RDMA-capable RNICs.
.
This package contains libraries and header files used for linking programs
against librpmem.
Package: rpmemd
Section: misc
Architecture: any
Priority: optional
Depends: \${shlibs:Depends}, \${misc:Depends}
Description: rpmem daemon
Daemon for Remote Persistent Memory support.
EOF
}
function libpmem2_install_triggers_overrides() {
cat << EOF > debian/libpmem2.install
$LIB_DIR/libpmem2.so.*
EOF
cat << EOF > debian/libpmem2.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
libpmem2: package-name-doesnt-match-sonames
EOF
cat << EOF > debian/libpmem2-dev.install
$LIB_DIR/pmdk_debug/libpmem2.a $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/libpmem2.so $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/libpmem2.so.* $LIB_DIR/pmdk_dbg/
$LIB_DIR/libpmem2.so
$LIB_DIR/pkgconfig/libpmem2.pc
$INC_DIR/libpmem2.h
$MAN7_DIR/libpmem2.7
$MAN3_DIR/pmem2_*.3
EOF
cat << EOF > debian/libpmem2-dev.triggers
interest man-db
EOF
cat << EOF > debian/libpmem2-dev.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
# The following warnings are triggered by a bug in debhelper:
# https://bugs.debian.org/204975
postinst-has-useless-call-to-ldconfig
postrm-has-useless-call-to-ldconfig
# We do not want to compile with -O2 for debug version
hardening-no-fortify-functions $LIB_DIR/pmdk_dbg/*
EOF
}
function append_libpmem2_control() {
cat << EOF >> $CONTROL_FILE
Package: libpmem2
Architecture: any
Depends: \${shlibs:Depends}, \${misc:Depends}
Description: Persistent Memory low level support library
libpmem2 provides low level persistent memory support. In particular, support
for the persistent memory instructions for flushing changes to pmem is
provided. (EXPERIMENTAL)
Package: libpmem2-dev
Section: libdevel
Architecture: any
Depends: libpmem2 (=\${binary:Version}), \${shlibs:Depends}, \${misc:Depends}
Description: Development files for libpmem2
libpmem2 provides low level persistent memory support. In particular, support
for the persistent memory instructions for flushing changes to pmem is
provided. (EXPERIMENTAL)
EOF
}
function daxio_install_triggers_overrides() {
cat << EOF > debian/daxio.install
usr/bin/daxio
$MAN1_DIR/daxio.1
EOF
cat << EOF > debian/daxio.triggers
interest man-db
EOF
cat << EOF > debian/daxio.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
EOF
}
function append_daxio_control() {
cat << EOF >> $CONTROL_FILE
Package: daxio
Section: misc
Architecture: any
Priority: optional
Depends: libpmem (=\${binary:Version}), \${shlibs:Depends}, \${misc:Depends}
Description: dd-like tool to read/write to a devdax device
The daxio utility performs I/O on Device DAX devices or zeroes a Device
DAX device. Since the standard I/O APIs (read/write) cannot be used
with Device DAX, data transfer is performed on a memory-mapped device.
The daxio may be used to dump Device DAX data to a file, restore data from
a backup copy, move/copy data to another device or to erase data from
a device.
EOF
}
if [ "${BUILD_PACKAGE_CHECK}" == "y" ]
then
CHECK_CMD="
override_dh_auto_test:
dh_auto_test
if [ -f $TEST_CONFIG_FILE ]; then\
cp $TEST_CONFIG_FILE src/test/testconfig.sh;\
else\
echo 'PMEM_FS_DIR=/tmp' > src/test/testconfig.sh; \
echo 'PMEM_FS_DIR_FORCE_PMEM=1' >> src/test/testconfig.sh; \
echo 'TEST_BUILD=\"debug nondebug\"' >> src/test/testconfig.sh; \
echo 'TEST_FS=\"pmem any none\"' >> src/test/testconfig.sh; \
fi
make pcheck ${PCHECK_OPTS}
"
else
CHECK_CMD="
override_dh_auto_test:
"
fi
check_tool debuild
check_tool dch
check_file $SCRIPT_DIR/pkg-config.sh
source $SCRIPT_DIR/pkg-config.sh
PACKAGE_VERSION=$(get_version $PACKAGE_VERSION_TAG)
PACKAGE_RELEASE=1
PACKAGE_SOURCE=${PACKAGE_NAME}-${PACKAGE_VERSION}
PACKAGE_TARBALL_ORIG=${PACKAGE_NAME}_${PACKAGE_VERSION}.orig.tar.gz
MAGIC_INSTALL=utils/magic-install.sh
MAGIC_UNINSTALL=utils/magic-uninstall.sh
CONTROL_FILE=debian/control
[ -d $WORKING_DIR ] || mkdir $WORKING_DIR
[ -d $OUT_DIR ] || mkdir $OUT_DIR
OLD_DIR=$PWD
cd $WORKING_DIR
check_dir $SOURCE
mv $SOURCE $PACKAGE_SOURCE
tar zcf $PACKAGE_TARBALL_ORIG $PACKAGE_SOURCE
cd $PACKAGE_SOURCE
rm -rf debian
mkdir debian
# Generate compat file
cat << EOF > debian/compat
9
EOF
# Generate control file
cat << EOF > $CONTROL_FILE
Source: $PACKAGE_NAME
Maintainer: $PACKAGE_MAINTAINER
Section: libs
Priority: optional
Standards-version: 4.1.4
Build-Depends: debhelper (>= 9)
Homepage: https://pmem.io/pmdk/
Package: libpmem
Architecture: any
Depends: \${shlibs:Depends}, \${misc:Depends}
Description: Persistent Memory low level support library
libpmem provides low level persistent memory support. In particular, support
for the persistent memory instructions for flushing changes to pmem is
provided.
Package: libpmem-dev
Section: libdevel
Architecture: any
Depends: libpmem (=\${binary:Version}), \${shlibs:Depends}, \${misc:Depends}
Description: Development files for libpmem
libpmem provides low level persistent memory support. In particular, support
for the persistent memory instructions for flushing changes to pmem is
provided.
Package: libpmemblk
Architecture: any
Depends: libpmem (=\${binary:Version}), \${shlibs:Depends}, \${misc:Depends}
Description: Persistent Memory block array support library
libpmemblk implements a pmem-resident array of blocks, all the same size, where
a block is updated atomically with respect to power failure or program
interruption (no torn blocks).
Package: libpmemblk-dev
Section: libdevel
Architecture: any
Depends: libpmemblk (=\${binary:Version}), libpmem-dev, \${shlibs:Depends}, \${misc:Depends}
Description: Development files for libpmemblk
libpmemblk implements a pmem-resident array of blocks, all the same size, where
a block is updated atomically with respect to power failure or program
interruption (no torn blocks).
Package: libpmemlog
Architecture: any
Depends: libpmem (=\${binary:Version}), \${shlibs:Depends}, \${misc:Depends}
Description: Persistent Memory log file support library
libpmemlog implements a pmem-resident log file.
Package: libpmemlog-dev
Section: libdevel
Architecture: any
Depends: libpmemlog (=\${binary:Version}), libpmem-dev, \${shlibs:Depends}, \${misc:Depends}
Description: Development files for libpmemlog
libpmemlog implements a pmem-resident log file.
Package: libpmemobj
Architecture: any
Depends: libpmem (=\${binary:Version}), \${shlibs:Depends}, \${misc:Depends}
Description: Persistent Memory object store support library
libpmemobj turns a persistent memory file into a flexible object store,
supporting transactions, memory management, locking, lists, and a number of
other features.
Package: libpmemobj-dev
Section: libdevel
Architecture: any
Depends: libpmemobj (=\${binary:Version}), libpmem-dev, \${shlibs:Depends}, \${misc:Depends}
Description: Development files for libpmemobj
libpmemobj turns a persistent memory file into a flexible object store,
supporting transactions, memory management, locking, lists, and a number of
other features.
.
This package contains libraries and header files used for linking programs
against libpmemobj.
Package: libpmempool
Architecture: any
Depends: libpmem (=\${binary:Version}), \${shlibs:Depends}, \${misc:Depends}
Description: Persistent Memory pool management support library
libpmempool provides a set of utilities for management, diagnostics and repair
of persistent memory pools. A pool in this context means a pmemobj pool,
pmemblk pool, pmemlog pool or BTT layout, independent of the underlying
storage. The libpmempool is for applications that need high reliability or
built-in troubleshooting. It may be useful for testing and debugging purposes
also.
Package: libpmempool-dev
Section: libdevel
Architecture: any
Depends: libpmempool (=\${binary:Version}), libpmem-dev, \${shlibs:Depends}, \${misc:Depends}
Description: Development files for libpmempool
libpmempool provides a set of utilities for management, diagnostics and repair
of persistent memory pools.
.
This package contains libraries and header files used for linking programs
against libpmempool.
Package: $PACKAGE_NAME-dbg
Section: debug
Priority: optional
Architecture: any
Depends: libpmem (=\${binary:Version}), libpmemblk (=\${binary:Version}), libpmemlog (=\${binary:Version}), libpmemobj (=\${binary:Version}), libpmempool (=\${binary:Version}), \${misc:Depends}
Description: Debug symbols for PMDK libraries
Debug symbols for all PMDK libraries.
Package: pmempool
Section: misc
Architecture: any
Priority: optional
Depends: \${shlibs:Depends}, \${misc:Depends}
Description: utility for management and off-line analysis of PMDK memory pools
This utility is a standalone tool that manages Persistent Memory pools
created by PMDK libraries. It provides a set of utilities for
administration and diagnostics of Persistent Memory pools. Pmempool may be
useful for troubleshooting by system administrators and users of the
applications based on PMDK libraries.
Package: pmreorder
Section: misc
Architecture: any
Priority: optional
Depends: \${shlibs:Depends}, \${misc:Depends}
Description: tool to parse and replay pmemcheck logs
Pmreorder is tool that parses and replays log of operations collected by
pmemcheck -- a atandalone tool which is a collection of python scripts designed
to parse and replay operations logged by pmemcheck - a persistent memory
checking tool. Pmreorder performs the store reordering between persistent
memory barriers - a sequence of flush-fence operations. It uses a
consistency checking routine provided in the command line options to check
whether files are in a consistent state.
EOF
cp LICENSE debian/copyright
if [ -n "$NDCTL_ENABLE" ]; then
pass_ndctl_enable="NDCTL_ENABLE=$NDCTL_ENABLE"
else
pass_ndctl_enable=""
fi
cat << EOF > debian/rules
#!/usr/bin/make -f
#export DH_VERBOSE=1
%:
dh \$@
override_dh_strip:
dh_strip --dbg-package=$PACKAGE_NAME-dbg
override_dh_auto_build:
dh_auto_build -- EXPERIMENTAL=${EXPERIMENTAL} prefix=/$PREFIX libdir=/$LIB_DIR includedir=/$INC_DIR docdir=/$DOC_DIR man1dir=/$MAN1_DIR man3dir=/$MAN3_DIR man5dir=/$MAN5_DIR man7dir=/$MAN7_DIR sysconfdir=/etc bashcompdir=/usr/share/bash-completion/completions NORPATH=1 ${pass_ndctl_enable} SRCVERSION=$SRCVERSION PMEM2_INSTALL=${PMEM2_INSTALL}
override_dh_auto_install:
dh_auto_install -- EXPERIMENTAL=${EXPERIMENTAL} prefix=/$PREFIX libdir=/$LIB_DIR includedir=/$INC_DIR docdir=/$DOC_DIR man1dir=/$MAN1_DIR man3dir=/$MAN3_DIR man5dir=/$MAN5_DIR man7dir=/$MAN7_DIR sysconfdir=/etc bashcompdir=/usr/share/bash-completion/completions NORPATH=1 ${pass_ndctl_enable} SRCVERSION=$SRCVERSION PMEM2_INSTALL=${PMEM2_INSTALL}
find -path './debian/*usr/share/man/man*/*.gz' -exec gunzip {} \;
override_dh_install:
mkdir -p debian/tmp/usr/share/pmdk/
cp utils/pmdk.magic debian/tmp/usr/share/pmdk/
dh_install
${CHECK_CMD}
EOF
chmod +x debian/rules
mkdir debian/source
ITP_BUG_EXCUSE="# This is our first package but we do not want to upload it yet.
# Please refer to Debian Developer's Reference section 5.1 (New packages) for details:
# https://www.debian.org/doc/manuals/developers-reference/pkgs.html#newpackage"
cat << EOF > debian/source/format
3.0 (quilt)
EOF
cat << EOF > debian/libpmem.install
$LIB_DIR/libpmem.so.*
usr/share/pmdk/pmdk.magic
$MAN5_DIR/poolset.5
EOF
cat $MAGIC_INSTALL > debian/libpmem.postinst
sed -i '1s/.*/\#\!\/bin\/bash/' debian/libpmem.postinst
echo $'\n#DEBHELPER#\n' >> debian/libpmem.postinst
cat $MAGIC_UNINSTALL > debian/libpmem.prerm
sed -i '1s/.*/\#\!\/bin\/bash/' debian/libpmem.prerm
echo $'\n#DEBHELPER#\n' >> debian/libpmem.prerm
cat << EOF > debian/libpmem.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
libpmem: package-name-doesnt-match-sonames
EOF
cat << EOF > debian/libpmem-dev.install
$LIB_DIR/pmdk_debug/libpmem.a $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/libpmem.so $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/libpmem.so.* $LIB_DIR/pmdk_dbg/
$LIB_DIR/libpmem.so
$LIB_DIR/pkgconfig/libpmem.pc
$INC_DIR/libpmem.h
$MAN7_DIR/libpmem.7
$MAN3_DIR/pmem_*.3
EOF
cat << EOF > debian/libpmem-dev.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
# The following warnings are triggered by a bug in debhelper:
# https://bugs.debian.org/204975
postinst-has-useless-call-to-ldconfig
postrm-has-useless-call-to-ldconfig
# We do not want to compile with -O2 for debug version
hardening-no-fortify-functions $LIB_DIR/pmdk_dbg/*
# pmdk provides second set of libraries for debugging.
# These are in /usr/lib/$arch/pmdk_dbg/, but still trigger ldconfig.
# Related issue: https://github.com/pmem/issues/issues/841
libpmem-dev: package-has-unnecessary-activation-of-ldconfig-trigger
EOF
cat << EOF > debian/libpmemblk.install
$LIB_DIR/libpmemblk.so.*
EOF
cat << EOF > debian/libpmemblk.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
libpmemblk: package-name-doesnt-match-sonames
EOF
cat << EOF > debian/libpmemblk-dev.install
$LIB_DIR/pmdk_debug/libpmemblk.a $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/libpmemblk.so $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/libpmemblk.so.* $LIB_DIR/pmdk_dbg/
$LIB_DIR/libpmemblk.so
$LIB_DIR/pkgconfig/libpmemblk.pc
$INC_DIR/libpmemblk.h
$MAN7_DIR/libpmemblk.7
$MAN3_DIR/pmemblk_*.3
EOF
cat << EOF > debian/libpmemblk-dev.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
# The following warnings are triggered by a bug in debhelper:
# https://bugs.debian.org/204975
postinst-has-useless-call-to-ldconfig
postrm-has-useless-call-to-ldconfig
# We do not want to compile with -O2 for debug version
hardening-no-fortify-functions $LIB_DIR/pmdk_dbg/*
# pmdk provides second set of libraries for debugging.
# These are in /usr/lib/$arch/pmdk_dbg/, but still trigger ldconfig.
# Related issue: https://github.com/pmem/issues/issues/841
libpmemblk-dev: package-has-unnecessary-activation-of-ldconfig-trigger
EOF
cat << EOF > debian/libpmemlog.install
$LIB_DIR/libpmemlog.so.*
EOF
cat << EOF > debian/libpmemlog.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
libpmemlog: package-name-doesnt-match-sonames
EOF
cat << EOF > debian/libpmemlog-dev.install
$LIB_DIR/pmdk_debug/libpmemlog.a $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/libpmemlog.so $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/libpmemlog.so.* $LIB_DIR/pmdk_dbg/
$LIB_DIR/libpmemlog.so
$LIB_DIR/pkgconfig/libpmemlog.pc
$INC_DIR/libpmemlog.h
$MAN7_DIR/libpmemlog.7
$MAN3_DIR/pmemlog_*.3
EOF
cat << EOF > debian/libpmemlog-dev.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
# The following warnings are triggered by a bug in debhelper:
# https://bugs.debian.org/204975
postinst-has-useless-call-to-ldconfig
postrm-has-useless-call-to-ldconfig
# We do not want to compile with -O2 for debug version
hardening-no-fortify-functions $LIB_DIR/pmdk_dbg/*
# pmdk provides second set of libraries for debugging.
# These are in /usr/lib/$arch/pmdk_dbg/, but still trigger ldconfig.
# Related issue: https://github.com/pmem/issues/issues/841
libpmemlog-dev: package-has-unnecessary-activation-of-ldconfig-trigger
EOF
cat << EOF > debian/libpmemobj.install
$LIB_DIR/libpmemobj.so.*
EOF
cat << EOF > debian/libpmemobj.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
libpmemobj: package-name-doesnt-match-sonames
EOF
cat << EOF > debian/libpmemobj-dev.install
$LIB_DIR/pmdk_debug/libpmemobj.a $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/libpmemobj.so $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/libpmemobj.so.* $LIB_DIR/pmdk_dbg/
$LIB_DIR/libpmemobj.so
$LIB_DIR/pkgconfig/libpmemobj.pc
$INC_DIR/libpmemobj.h
$INC_DIR/libpmemobj/*.h
$MAN7_DIR/libpmemobj.7
$MAN3_DIR/pmemobj_*.3
$MAN3_DIR/pobj_*.3
$MAN3_DIR/oid_*.3
$MAN3_DIR/toid*.3
$MAN3_DIR/direct_*.3
$MAN3_DIR/d_r*.3
$MAN3_DIR/tx_*.3
EOF
cat << EOF > debian/libpmemobj-dev.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
# The following warnings are triggered by a bug in debhelper:
# https://bugs.debian.org/204975
postinst-has-useless-call-to-ldconfig
postrm-has-useless-call-to-ldconfig
# We do not want to compile with -O2 for debug version
hardening-no-fortify-functions $LIB_DIR/pmdk_dbg/*
# pmdk provides second set of libraries for debugging.
# These are in /usr/lib/$arch/pmdk_dbg/, but still trigger ldconfig.
# Related issue: https://github.com/pmem/issues/issues/841
libpmemobj-dev: package-has-unnecessary-activation-of-ldconfig-trigger
EOF
cat << EOF > debian/libpmempool.install
$LIB_DIR/libpmempool.so.*
EOF
cat << EOF > debian/libpmempool.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
libpmempool: package-name-doesnt-match-sonames
EOF
cat << EOF > debian/libpmempool-dev.install
$LIB_DIR/pmdk_debug/libpmempool.a $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/libpmempool.so $LIB_DIR/pmdk_dbg/
$LIB_DIR/pmdk_debug/libpmempool.so.* $LIB_DIR/pmdk_dbg/
$LIB_DIR/libpmempool.so
$LIB_DIR/pkgconfig/libpmempool.pc
$INC_DIR/libpmempool.h
$MAN7_DIR/libpmempool.7
$MAN3_DIR/pmempool_*.3
EOF
cat << EOF > debian/libpmempool-dev.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
# The following warnings are triggered by a bug in debhelper:
# https://bugs.debian.org/204975
postinst-has-useless-call-to-ldconfig
postrm-has-useless-call-to-ldconfig
# We do not want to compile with -O2 for debug version
hardening-no-fortify-functions $LIB_DIR/pmdk_dbg/*
# pmdk provides second set of libraries for debugging.
# These are in /usr/lib/$arch/pmdk_dbg/, but still trigger ldconfig.
# Related issue: https://github.com/pmem/issues/issues/841
libpmempool-dev: package-has-unnecessary-activation-of-ldconfig-trigger
EOF
cat << EOF > debian/$PACKAGE_NAME-dbg.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
EOF
cat << EOF > debian/pmempool.install
usr/bin/pmempool
$MAN1_DIR/pmempool.1
$MAN1_DIR/pmempool-*.1
usr/share/bash-completion/completions/pmempool
EOF
cat << EOF > debian/pmempool.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
EOF
cat << EOF > debian/pmreorder.install
usr/bin/pmreorder
usr/share/pmreorder/*.py
$MAN1_DIR/pmreorder.1
EOF
cat << EOF > debian/pmreorder.lintian-overrides
$ITP_BUG_EXCUSE
new-package-should-close-itp-bug
EOF
# librpmem & rpmemd
if [ "${BUILD_RPMEM}" = "y" -a "${RPMEM_DPKG}" = "y" ]
then
append_rpmem_control;
rpmem_install_triggers_overrides;
fi
# libpmem2
if [ "${PMEM2_INSTALL}" == "y" ]
then
append_libpmem2_control;
libpmem2_install_triggers_overrides;
fi
# daxio
if [ "${NDCTL_ENABLE}" != "n" ]
then
append_daxio_control;
daxio_install_triggers_overrides;
fi
# Convert ChangeLog to debian format
CHANGELOG_TMP=changelog.tmp
dch --create --empty --package $PACKAGE_NAME -v $PACKAGE_VERSION-$PACKAGE_RELEASE -M -c $CHANGELOG_TMP
touch debian/changelog
head -n1 $CHANGELOG_TMP >> debian/changelog
echo "" >> debian/changelog
convert_changelog ChangeLog >> debian/changelog
echo "" >> debian/changelog
tail -n1 $CHANGELOG_TMP >> debian/changelog
rm $CHANGELOG_TMP
# This is our first release but we do
debuild --preserve-envvar=EXTRA_CFLAGS_RELEASE \
--preserve-envvar=EXTRA_CFLAGS_DEBUG \
--preserve-envvar=EXTRA_CFLAGS \
--preserve-envvar=EXTRA_CXXFLAGS \
--preserve-envvar=EXTRA_LDFLAGS \
--preserve-envvar=NDCTL_ENABLE \
-us -uc -b
cd $OLD_DIR
find $WORKING_DIR -name "*.deb"\
-or -name "*.dsc"\
-or -name "*.changes"\
-or -name "*.orig.tar.gz"\
-or -name "*.debian.tar.gz" | while read FILE
do
mv -v $FILE $OUT_DIR/
done
exit 0
| 24,325 | 27.925089 | 347 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/check-os.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2017-2019, Intel Corporation
#
# Used to check if there are no banned functions in .o file
#
# usage: ./check-os.sh [os.h path] [.o file] [.c file]
EXCLUDE="os_posix|os_thread_posix"
if [[ $2 =~ $EXCLUDE ]]; then
echo "skip $2"
exit 0
fi
symbols=$(nm --demangle --undefined-only --format=posix $2 | sed 's/ U *//g')
functions=$(cat $1 | tr '\n' '|')
functions=${functions%?} # remove trailing | character
out=$(
for sym in $symbols
do
grep -wE $functions <<<"$sym"
done | sed 's/$/\(\)/g')
[[ ! -z $out ]] &&
echo -e "`pwd`/$3:1: non wrapped function(s):\n$out\nplease use os wrappers" &&
rm -f $2 && # remove .o file as it don't match requirements
exit 1
exit 0
| 750 | 23.225806 | 80 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/magic-uninstall.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2014-2017, Intel Corporation
#
# magic-uninstall.sh -- Script for uninstalling magic script
#
set -e
HDR_LOCAL=$(grep "File: pmdk" /etc/magic)
HDR_PKG=$(grep "File: pmdk" /usr/share/pmdk/pmdk.magic)
if [[ $HDR_LOCAL == $HDR_PKG ]]
then
echo "Removing PMDK magic from /etc/magic"
HDR_LINE=$(grep -n "File: pmdk" /etc/magic | cut -f1 -d:)
HDR_PKG_LINE=$(grep -n "File: pmdk" /usr/share/pmdk/pmdk.magic | cut -f1 -d:)
HDR_LINES=$(cat /usr/share/pmdk/pmdk.magic | wc -l)
HDR_FIRST=$(($HDR_LINE - $HDR_PKG_LINE + 1))
HDR_LAST=$(($HDR_FIRST + $HDR_LINES))
sed -i "${HDR_FIRST},${HDR_LAST}d" /etc/magic
fi
| 680 | 29.954545 | 78 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/pkg-config.sh | # SPDX-License-Identifier: BSD-3-Clause
# Copyright 2014-2020, Intel Corporation
# Name of package
PACKAGE_NAME="pmdk"
# Name and email of package maintainer
PACKAGE_MAINTAINER="Piotr Balcer <[email protected]>"
# Brief description of the package
PACKAGE_SUMMARY="Persistent Memory Development Kit"
# Full description of the package
PACKAGE_DESCRIPTION="The collection of libraries and utilities for Persistent Memory Programming"
# Website
PACKAGE_URL="https://pmem.io/pmdk"
| 486 | 26.055556 | 97 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/style_check.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
#
# utils/style_check.sh -- common style checking script
#
set -e
ARGS=("$@")
CSTYLE_ARGS=()
CLANG_ARGS=()
FLAKE8_ARGS=()
CHECK_TYPE=$1
[ -z "$clang_format_bin" ] && which clang-format-9 >/dev/null &&
clang_format_bin=clang-format-9
[ -z "$clang_format_bin" ] && which clang-format >/dev/null &&
clang_format_bin=clang-format
[ -z "$clang_format_bin" ] && clang_format_bin=clang-format
#
# print script usage
#
function usage() {
echo "$0 <check|format> [C/C++ files]"
}
#
# require clang-format version 9.0
#
function check_clang_version() {
set +e
which ${clang_format_bin} &> /dev/null && ${clang_format_bin} --version |\
grep "version 9\.0"\
&> /dev/null
if [ $? -ne 0 ]; then
echo "SKIP: requires clang-format version 9.0"
exit 0
fi
set -e
}
#
# run old cstyle check
#
function run_cstyle() {
if [ $# -eq 0 ]; then
return
fi
${cstyle_bin} -pP $@
}
#
# generate diff with clang-format rules
#
function run_clang_check() {
if [ $# -eq 0 ]; then
return
fi
check_clang_version
for file in $@
do
LINES=$(${clang_format_bin} -style=file $file |\
git diff --no-index $file - | wc -l)
if [ $LINES -ne 0 ]; then
${clang_format_bin} -style=file $file | git diff --no-index $file -
fi
done
}
#
# in-place format according to clang-format rules
#
function run_clang_format() {
if [ $# -eq 0 ]; then
return
fi
check_clang_version
${clang_format_bin} -style=file -i $@
}
function run_flake8() {
if [ $# -eq 0 ]; then
return
fi
${flake8_bin} --exclude=testconfig.py,envconfig.py $@
}
for ((i=1; i<$#; i++)) {
IGNORE="$(dirname ${ARGS[$i]})/.cstyleignore"
if [ -e $IGNORE ]; then
if grep -q ${ARGS[$i]} $IGNORE ; then
echo "SKIP ${ARGS[$i]}"
continue
fi
fi
case ${ARGS[$i]} in
*.[ch]pp)
CLANG_ARGS+="${ARGS[$i]} "
;;
*.[ch])
CSTYLE_ARGS+="${ARGS[$i]} "
;;
*.py)
FLAKE8_ARGS+="${ARGS[$i]} "
;;
*)
echo "Unknown argument"
exit 1
;;
esac
}
case $CHECK_TYPE in
check)
run_cstyle ${CSTYLE_ARGS}
run_clang_check ${CLANG_ARGS}
run_flake8 ${FLAKE8_ARGS}
;;
format)
run_clang_format ${CLANG_ARGS}
;;
*)
echo "Invalid parameters"
usage
exit 1
;;
esac
| 2,274 | 15.485507 | 75 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/version.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2017-2020, Intel Corporation
#
# utils/version.sh -- determine project's version
#
set -e
if [ -f "$1/VERSION" ]; then
cat "$1/VERSION"
exit 0
fi
if [ -f $1/GIT_VERSION ]; then
echo -n "\$Format:%h\$" | cmp -s $1/GIT_VERSION - && true
if [ $? -eq 0 ]; then
PARSE_GIT_VERSION=0
else
PARSE_GIT_VERSION=1
fi
else
PARSE_GIT_VERSION=0
fi
LATEST_RELEASE=$(cat $1/ChangeLog | grep "* Version" | cut -d " " -f 3 | sort -rd | head -n1)
if [ $PARSE_GIT_VERSION -eq 1 ]; then
GIT_VERSION_HASH=$(cat $1/GIT_VERSION)
if [ -n "$GIT_VERSION_HASH" ]; then
echo "$LATEST_RELEASE+git.$GIT_VERSION_HASH"
exit 0
fi
fi
cd "$1"
GIT_DESCRIBE=$(git describe 2>/dev/null) && true
if [ -n "$GIT_DESCRIBE" ]; then
# 1.5-19-gb8f78a329 -> 1.5+git19.gb8f78a329
# 1.5-rc1-19-gb8f78a329 -> 1.5-rc1+git19.gb8f78a329
echo "$GIT_DESCRIBE" | sed "s/\([0-9.]*\)-rc\([0-9]*\)-\([0-9]*\)-\([0-9a-g]*\)/\1-rc\2+git\3.\4/" | sed "s/\([0-9.]*\)-\([0-9]*\)-\([0-9a-g]*\)/\1+git\2.\3/"
exit 0
fi
# try commit it, git describe can fail when there are no tags (e.g. with shallow clone, like on Travis)
GIT_COMMIT=$(git log -1 --format=%h) && true
if [ -n "$GIT_COMMIT" ]; then
echo "$LATEST_RELEASE+git.$GIT_COMMIT"
exit 0
fi
cd - >/dev/null
# If nothing works, try to get version from directory name
VER=$(basename `realpath "$1"` | sed 's/pmdk[-]*\([0-9a-z.+-]*\).*/\1/')
if [ -n "$VER" ]; then
echo "$VER"
exit 0
fi
exit 1
| 1,489 | 22.650794 | 159 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/check_license/file-exceptions.sh | #!/bin/sh -e
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
# file-exceptions.sh - filter out files not checked for copyright and license
grep -v -E -e '/queue.h$' -e '/getopt.h$' -e '/getopt.c$' -e 'src/core/valgrind/' -e '/testconfig\...$'
| 278 | 33.875 | 103 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/check_license/check-headers.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
# check-headers.sh - check copyright and license in source files
SELF=$0
function usage() {
echo "Usage: $SELF <source_root_path> <license_tag> [-h|-v|-a]"
echo " -h, --help this help message"
echo " -v, --verbose verbose mode"
echo " -a, --all check all files (only modified files are checked by default)"
}
if [ "$#" -lt 2 ]; then
usage >&2
exit 2
fi
SOURCE_ROOT=$1
shift
LICENSE=$1
shift
PATTERN=`mktemp`
TMP=`mktemp`
TMP2=`mktemp`
TEMPFILE=`mktemp`
rm -f $PATTERN $TMP $TMP2
if [ "$1" == "-h" -o "$1" == "--help" ]; then
usage
exit 0
fi
export GIT="git -C ${SOURCE_ROOT}"
$GIT rev-parse || exit 1
if [ -f $SOURCE_ROOT/.git/shallow ]; then
SHALLOW_CLONE=1
echo
echo "Warning: This is a shallow clone. Checking dates in copyright headers"
echo " will be skipped in case of files that have no history."
echo
else
SHALLOW_CLONE=0
fi
VERBOSE=0
CHECK_ALL=0
while [ "$1" != "" ]; do
case $1 in
-v|--verbose)
VERBOSE=1
;;
-a|--all)
CHECK_ALL=1
;;
esac
shift
done
if [ $CHECK_ALL -eq 0 ]; then
CURRENT_COMMIT=$($GIT log --pretty=%H -1)
MERGE_BASE=$($GIT merge-base HEAD origin/master 2>/dev/null)
[ -z $MERGE_BASE ] && \
MERGE_BASE=$($GIT log --pretty="%cN:%H" | grep GitHub | head -n1 | cut -d: -f2)
[ -z $MERGE_BASE -o "$CURRENT_COMMIT" = "$MERGE_BASE" ] && \
CHECK_ALL=1
fi
if [ $CHECK_ALL -eq 1 ]; then
echo "Checking copyright headers of all files..."
GIT_COMMAND="ls-tree -r --name-only HEAD"
else
if [ $VERBOSE -eq 1 ]; then
echo
echo "Warning: will check copyright headers of modified files only,"
echo " in order to check all files issue the following command:"
echo " $ $SELF <source_root_path> <license_tag> -a"
echo " (e.g.: $ $SELF $SOURCE_ROOT $LICENSE -a)"
echo
fi
echo "Checking copyright headers of modified files only..."
GIT_COMMAND="diff --name-only $MERGE_BASE $CURRENT_COMMIT"
fi
FILES=$($GIT $GIT_COMMAND | ${SOURCE_ROOT}/utils/check_license/file-exceptions.sh | \
grep -E -e '*\.[chs]$' -e '*\.[ch]pp$' -e '*\.sh$' \
-e '*\.py$' -e '*\.link$' -e 'Makefile*' -e 'TEST*' \
-e '/common.inc$' -e '/match$' -e '/check_whitespace$' \
-e 'LICENSE$' -e 'CMakeLists.txt$' -e '*\.cmake$' | \
xargs)
RV=0
for file in $FILES ; do
# The src_path is a path which should be used in every command except git.
# git is called with -C flag so filepaths should be relative to SOURCE_ROOT
src_path="${SOURCE_ROOT}/$file"
[ ! -f $src_path ] && continue
# ensure that file is UTF-8 encoded
ENCODING=`file -b --mime-encoding $src_path`
iconv -f $ENCODING -t "UTF-8" $src_path > $TEMPFILE
if ! grep -q "SPDX-License-Identifier: $LICENSE" $src_path; then
echo >&2 "$src_path:1: no $LICENSE SPDX tag found "
RV=1
fi
if [ $SHALLOW_CLONE -eq 0 ]; then
$GIT log --no-merges --format="%ai %aE" -- $file | sort > $TMP
else
# mark the grafted commits (commits with no parents)
$GIT log --no-merges --format="%ai %aE grafted-%p-commit" -- $file | sort > $TMP
fi
# skip checking dates for non-Intel commits
[[ ! $(tail -n1 $TMP) =~ "@intel.com" ]] && continue
# skip checking dates for new files
[ $(cat $TMP | wc -l) -le 1 ] && continue
# grep out the grafted commits (commits with no parents)
# and skip checking dates for non-Intel commits
grep -v -e "grafted--commit" $TMP | grep -e "@intel.com" > $TMP2
[ $(cat $TMP2 | wc -l) -eq 0 ] && continue
FIRST=`head -n1 $TMP2`
LAST=` tail -n1 $TMP2`
YEARS=`sed '
/Copyright [0-9-]\+.*, Intel Corporation/!d
s/.*Copyright \([0-9]\+\)-\([0-9]\+\),.*/\1-\2/
s/.*Copyright \([0-9]\+\),.*/\1-\1/' $src_path`
if [ -z "$YEARS" ]; then
echo >&2 "$src_path:1: No copyright years found"
RV=1
continue
fi
HEADER_FIRST=`echo $YEARS | cut -d"-" -f1`
HEADER_LAST=` echo $YEARS | cut -d"-" -f2`
COMMIT_FIRST=`echo $FIRST | cut -d"-" -f1`
COMMIT_LAST=` echo $LAST | cut -d"-" -f1`
if [ "$COMMIT_FIRST" != "" -a "$COMMIT_LAST" != "" ]; then
if [ $HEADER_LAST -lt $COMMIT_LAST ]; then
if [ $HEADER_FIRST -lt $COMMIT_FIRST ]; then
COMMIT_FIRST=$HEADER_FIRST
fi
COMMIT_LAST=`date +%G`
if [ $COMMIT_FIRST -eq $COMMIT_LAST ]; then
NEW=$COMMIT_LAST
else
NEW=$COMMIT_FIRST-$COMMIT_LAST
fi
echo "$file:1: error: wrong copyright date: (is: $YEARS, should be: $NEW)" >&2
RV=1
fi
else
echo "$file:1: unknown commit dates" >&2
RV=1
fi
done
rm -f $TMP $TMP2 $TEMPFILE
$(dirname "$0")/check-ms-license.pl $FILES
# check if error found
if [ $RV -eq 0 ]; then
echo "Copyright headers are OK."
else
echo "Error(s) in copyright headers found!" >&2
fi
exit $RV
| 4,703 | 25.426966 | 87 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/build-local.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2017-2020, Intel Corporation
#
# build-local.sh - runs a Docker container from a Docker image with environment
# prepared for building PMDK project and starts building PMDK
#
# this script is for building PMDK locally (not on Travis)
#
# Notes:
# - run this script from its location or set the variable 'HOST_WORKDIR' to
# where the root of the PMDK project is on the host machine,
# - set variables 'OS' and 'OS_VER' properly to a system you want to build PMDK
# on (for proper values take a look on the list of Dockerfiles at the
# utils/docker/images directory), eg. OS=ubuntu, OS_VER=16.04.
# - set 'KEEP_TEST_CONFIG' variable to 1 if you do not want the tests to be
# reconfigured (your current test configuration will be preserved and used)
# - tests with Device Dax are not supported by pcheck yet, so do not provide
# these devices in your configuration
#
set -e
# Environment variables that can be customized (default values are after dash):
export KEEP_CONTAINER=${KEEP_CONTAINER:-0}
export KEEP_TEST_CONFIG=${KEEP_TEST_CONFIG:-0}
export TEST_BUILD=${TEST_BUILD:-all}
export REMOTE_TESTS=${REMOTE_TESTS:-1}
export MAKE_PKG=${MAKE_PKG:-0}
export EXTRA_CFLAGS=${EXTRA_CFLAGS}
export EXTRA_CXXFLAGS=${EXTRA_CXXFLAGS:-}
export PMDK_CC=${PMDK_CC:-gcc}
export PMDK_CXX=${PMDK_CXX:-g++}
export EXPERIMENTAL=${EXPERIMENTAL:-n}
export VALGRIND=${VALGRIND:-1}
export DOCKERHUB_REPO=${DOCKERHUB_REPO:-pmem/pmdk}
export GITHUB_REPO=${GITHUB_REPO:-pmem/pmdk}
if [[ -z "$OS" || -z "$OS_VER" ]]; then
echo "ERROR: The variables OS and OS_VER have to be set " \
"(eg. OS=ubuntu, OS_VER=16.04)."
exit 1
fi
if [[ -z "$HOST_WORKDIR" ]]; then
HOST_WORKDIR=$(readlink -f ../..)
fi
if [[ "$KEEP_CONTAINER" != "1" ]]; then
RM_SETTING=" --rm"
fi
imageName=${DOCKERHUB_REPO}:1.9-${OS}-${OS_VER}-${CI_CPU_ARCH}
containerName=pmdk-${OS}-${OS_VER}
if [[ $MAKE_PKG -eq 1 ]] ; then
command="./run-build-package.sh"
else
command="./run-build.sh"
fi
if [ -n "$DNS_SERVER" ]; then DNS_SETTING=" --dns=$DNS_SERVER "; fi
if [ -z "$NDCTL_ENABLE" ]; then ndctl_enable=; else ndctl_enable="--env NDCTL_ENABLE=$NDCTL_ENABLE"; fi
WORKDIR=/pmdk
SCRIPTSDIR=$WORKDIR/utils/docker
# Check if we are running on a CI (Travis or GitHub Actions)
[ -n "$GITHUB_ACTIONS" -o -n "$TRAVIS" ] && CI_RUN="YES" || CI_RUN="NO"
echo Building ${OS}-${OS_VER}
# Run a container with
# - environment variables set (--env)
# - host directory containing PMDK source mounted (-v)
# - a tmpfs /tmp with the necessary size and permissions (--tmpfs)*
# - working directory set (-w)
#
# * We need a tmpfs /tmp inside docker but we cannot run it with --privileged
# and do it from inside, so we do using this docker-run option.
# By default --tmpfs add nosuid,nodev,noexec to the mount flags, we don't
# want that and just to make sure we add the usually default rw,relatime just
# in case docker change the defaults.
docker run --name=$containerName -ti \
$RM_SETTING \
$DNS_SETTING \
--env http_proxy=$http_proxy \
--env https_proxy=$https_proxy \
--env CC=$PMDK_CC \
--env CXX=$PMDK_CXX \
--env VALGRIND=$VALGRIND \
--env EXTRA_CFLAGS=$EXTRA_CFLAGS \
--env EXTRA_CXXFLAGS=$EXTRA_CXXFLAGS \
--env EXTRA_LDFLAGS=$EXTRA_LDFLAGS \
--env REMOTE_TESTS=$REMOTE_TESTS \
--env CONFIGURE_TESTS=$CONFIGURE_TESTS \
--env TEST_BUILD=$TEST_BUILD \
--env WORKDIR=$WORKDIR \
--env EXPERIMENTAL=$EXPERIMENTAL \
--env SCRIPTSDIR=$SCRIPTSDIR \
--env KEEP_TEST_CONFIG=$KEEP_TEST_CONFIG \
--env CI_RUN=$CI_RUN \
--env BLACKLIST_FILE=$BLACKLIST_FILE \
$ndctl_enable \
--tmpfs /tmp:rw,relatime,suid,dev,exec,size=6G \
-v $HOST_WORKDIR:$WORKDIR \
-v /etc/localtime:/etc/localtime \
$DAX_SETTING \
-w $SCRIPTSDIR \
$imageName $command
| 3,812 | 33.044643 | 103 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/run-build.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
#
# run-build.sh - is called inside a Docker container; prepares the environment
# and starts a build of PMDK project.
#
set -e
# Prepare build environment
./prepare-for-build.sh
# Build all and run tests
cd $WORKDIR
if [ "$SRC_CHECKERS" != "0" ]; then
make -j$(nproc) check-license
make -j$(nproc) cstyle
fi
make -j$(nproc)
make -j$(nproc) test
# do not change -j2 to -j$(nproc) in case of tests (make check/pycheck)
make -j2 pcheck TEST_BUILD=$TEST_BUILD
# do not change -j2 to -j$(nproc) in case of tests (make check/pycheck)
make -j2 pycheck
make -j$(nproc) DESTDIR=/tmp source
# Create PR with generated docs
if [[ "$AUTO_DOC_UPDATE" == "1" ]]; then
echo "Running auto doc update"
./utils/docker/run-doc-update.sh
fi
| 848 | 23.257143 | 78 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/prepare-for-build.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
#
# prepare-for-build.sh - is called inside a Docker container; prepares
# the environment inside a Docker container for
# running build of PMDK project.
#
set -e
# This should be run only on CIs
if [ "$CI_RUN" == "YES" ]; then
# Make sure $WORKDIR has correct access rights
# - set them to the current UID and GID
echo $USERPASS | sudo -S chown -R $(id -u).$(id -g) $WORKDIR
fi
# Configure tests (e.g. ssh for remote tests) unless the current configuration
# should be preserved
KEEP_TEST_CONFIG=${KEEP_TEST_CONFIG:-0}
if [[ "$KEEP_TEST_CONFIG" == 0 ]]; then
./configure-tests.sh
fi
| 739 | 27.461538 | 78 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/set-ci-vars.sh | #!/usr/bin/env bash
#
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2020, Intel Corporation
#
# set-ci-vars.sh -- set CI variables common for both:
# Travis and GitHub Actions CIs
#
set -e
function get_commit_range_from_last_merge {
# get commit id of the last merge
LAST_MERGE=$(git log --merges --pretty=%H -1)
LAST_COMMIT=$(git log --pretty=%H -1)
if [ "$LAST_MERGE" == "$LAST_COMMIT" ]; then
# GitHub Actions commits its own merge in case of pull requests
# so the first merge commit has to be skipped.
LAST_MERGE=$(git log --merges --pretty=%H -2 | tail -n1)
fi
if [ "$LAST_MERGE" == "" ]; then
# possible in case of shallow clones
# or new repos with no merge commits yet
# - pick up the first commit
LAST_MERGE=$(git log --pretty=%H | tail -n1)
fi
COMMIT_RANGE="$LAST_MERGE..HEAD"
# make sure it works now
if ! git rev-list $COMMIT_RANGE >/dev/null; then
COMMIT_RANGE=""
fi
echo $COMMIT_RANGE
}
COMMIT_RANGE_FROM_LAST_MERGE=$(get_commit_range_from_last_merge)
if [ -n "$TRAVIS" ]; then
CI_COMMIT=$TRAVIS_COMMIT
CI_COMMIT_RANGE="${TRAVIS_COMMIT_RANGE/.../..}"
CI_BRANCH=$TRAVIS_BRANCH
CI_EVENT_TYPE=$TRAVIS_EVENT_TYPE
CI_REPO_SLUG=$TRAVIS_REPO_SLUG
# CI_COMMIT_RANGE is usually invalid for force pushes - fix it when used
# with non-upstream repository
if [ -n "$CI_COMMIT_RANGE" -a "$CI_REPO_SLUG" != "$GITHUB_REPO" ]; then
if ! git rev-list $CI_COMMIT_RANGE; then
CI_COMMIT_RANGE=$COMMIT_RANGE_FROM_LAST_MERGE
fi
fi
case "$TRAVIS_CPU_ARCH" in
"amd64")
CI_CPU_ARCH="x86_64"
;;
*)
CI_CPU_ARCH=$TRAVIS_CPU_ARCH
;;
esac
elif [ -n "$GITHUB_ACTIONS" ]; then
CI_COMMIT=$GITHUB_SHA
CI_COMMIT_RANGE=$COMMIT_RANGE_FROM_LAST_MERGE
CI_BRANCH=$(echo $GITHUB_REF | cut -d'/' -f3)
CI_REPO_SLUG=$GITHUB_REPOSITORY
CI_CPU_ARCH="x86_64" # GitHub Actions supports only x86_64
case "$GITHUB_EVENT_NAME" in
"schedule")
CI_EVENT_TYPE="cron"
;;
*)
CI_EVENT_TYPE=$GITHUB_EVENT_NAME
;;
esac
else
CI_COMMIT=$(git log --pretty=%H -1)
CI_COMMIT_RANGE=$COMMIT_RANGE_FROM_LAST_MERGE
CI_CPU_ARCH="x86_64"
fi
export CI_COMMIT=$CI_COMMIT
export CI_COMMIT_RANGE=$CI_COMMIT_RANGE
export CI_BRANCH=$CI_BRANCH
export CI_EVENT_TYPE=$CI_EVENT_TYPE
export CI_REPO_SLUG=$CI_REPO_SLUG
export CI_CPU_ARCH=$CI_CPU_ARCH
echo CI_COMMIT=$CI_COMMIT
echo CI_COMMIT_RANGE=$CI_COMMIT_RANGE
echo CI_BRANCH=$CI_BRANCH
echo CI_EVENT_TYPE=$CI_EVENT_TYPE
echo CI_REPO_SLUG=$CI_REPO_SLUG
echo CI_CPU_ARCH=$CI_CPU_ARCH
| 2,481 | 24.587629 | 73 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/build-CI.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
#
# build-CI.sh - runs a Docker container from a Docker image with environment
# prepared for building PMDK project and starts building PMDK
#
# this script is used for building PMDK on Travis and GitHub Actions CIs
#
set -e
source $(dirname $0)/set-ci-vars.sh
source $(dirname $0)/set-vars.sh
source $(dirname $0)/valid-branches.sh
if [[ "$CI_EVENT_TYPE" != "cron" && "$CI_BRANCH" != "coverity_scan" \
&& "$COVERITY" -eq 1 ]]; then
echo "INFO: Skip Coverity scan job if build is triggered neither by " \
"'cron' nor by a push to 'coverity_scan' branch"
exit 0
fi
if [[ ( "$CI_EVENT_TYPE" == "cron" || "$CI_BRANCH" == "coverity_scan" )\
&& "$COVERITY" -ne 1 ]]; then
echo "INFO: Skip regular jobs if build is triggered either by 'cron'" \
" or by a push to 'coverity_scan' branch"
exit 0
fi
if [[ -z "$OS" || -z "$OS_VER" ]]; then
echo "ERROR: The variables OS and OS_VER have to be set properly " \
"(eg. OS=ubuntu, OS_VER=16.04)."
exit 1
fi
if [[ -z "$HOST_WORKDIR" ]]; then
echo "ERROR: The variable HOST_WORKDIR has to contain a path to " \
"the root of the PMDK project on the host machine"
exit 1
fi
if [[ -z "$TEST_BUILD" ]]; then
TEST_BUILD=all
fi
imageName=${DOCKERHUB_REPO}:1.9-${OS}-${OS_VER}-${CI_CPU_ARCH}
containerName=pmdk-${OS}-${OS_VER}
if [[ $MAKE_PKG -eq 0 ]] ; then command="./run-build.sh"; fi
if [[ $MAKE_PKG -eq 1 ]] ; then command="./run-build-package.sh"; fi
if [[ $COVERAGE -eq 1 ]] ; then command="./run-coverage.sh"; ci_env=`bash <(curl -s https://codecov.io/env)`; fi
if [[ ( "$CI_EVENT_TYPE" == "cron" || "$CI_BRANCH" == "coverity_scan" )\
&& "$COVERITY" -eq 1 ]]; then
command="./run-coverity.sh"
fi
if [ -n "$DNS_SERVER" ]; then DNS_SETTING=" --dns=$DNS_SERVER "; fi
if [[ -f $CI_FILE_SKIP_BUILD_PKG_CHECK ]]; then BUILD_PACKAGE_CHECK=n; else BUILD_PACKAGE_CHECK=y; fi
if [ -z "$NDCTL_ENABLE" ]; then ndctl_enable=; else ndctl_enable="--env NDCTL_ENABLE=$NDCTL_ENABLE"; fi
if [[ $UBSAN -eq 1 ]]; then for x in C CPP LD; do declare EXTRA_${x}FLAGS=-fsanitize=undefined; done; fi
# Only run doc update on $GITHUB_REPO master or stable branch
if [[ -z "${CI_BRANCH}" || -z "${TARGET_BRANCHES[${CI_BRANCH}]}" || "$CI_EVENT_TYPE" == "pull_request" || "$CI_REPO_SLUG" != "${GITHUB_REPO}" ]]; then
AUTO_DOC_UPDATE=0
fi
# Check if we are running on a CI (Travis or GitHub Actions)
[ -n "$GITHUB_ACTIONS" -o -n "$TRAVIS" ] && CI_RUN="YES" || CI_RUN="NO"
# We have a blacklist only for ppc64le arch
if [[ "$CI_CPU_ARCH" == ppc64le ]] ; then BLACKLIST_FILE=../../utils/docker/ppc64le.blacklist; fi
# docker on travis + ppc64le runs inside an LXD container and for security
# limits what can be done inside it, and as such, `docker run` fails with
# > the input device is not a TTY
# when using -t because of limited permissions to /dev imposed by LXD.
if [[ -n "$TRAVIS" && "$CI_CPU_ARCH" == ppc64le ]] || [[ -n "$GITHUB_ACTIONS" ]]; then
TTY=''
else
TTY='-t'
fi
WORKDIR=/pmdk
SCRIPTSDIR=$WORKDIR/utils/docker
# Run a container with
# - environment variables set (--env)
# - host directory containing PMDK source mounted (-v)
# - a tmpfs /tmp with the necessary size and permissions (--tmpfs)*
# - working directory set (-w)
#
# * We need a tmpfs /tmp inside docker but we cannot run it with --privileged
# and do it from inside, so we do using this docker-run option.
# By default --tmpfs add nosuid,nodev,noexec to the mount flags, we don't
# want that and just to make sure we add the usually default rw,relatime just
# in case docker change the defaults.
docker run --rm --name=$containerName -i $TTY \
$DNS_SETTING \
$ci_env \
--env http_proxy=$http_proxy \
--env https_proxy=$https_proxy \
--env AUTO_DOC_UPDATE=$AUTO_DOC_UPDATE \
--env CC=$PMDK_CC \
--env CXX=$PMDK_CXX \
--env VALGRIND=$VALGRIND \
--env EXTRA_CFLAGS=$EXTRA_CFLAGS \
--env EXTRA_CXXFLAGS=$EXTRA_CXXFLAGS \
--env EXTRA_LDFLAGS=$EXTRA_LDFLAGS \
--env REMOTE_TESTS=$REMOTE_TESTS \
--env TEST_BUILD=$TEST_BUILD \
--env WORKDIR=$WORKDIR \
--env EXPERIMENTAL=$EXPERIMENTAL \
--env BUILD_PACKAGE_CHECK=$BUILD_PACKAGE_CHECK \
--env SCRIPTSDIR=$SCRIPTSDIR \
--env TRAVIS=$TRAVIS \
--env CI_COMMIT_RANGE=$CI_COMMIT_RANGE \
--env CI_COMMIT=$CI_COMMIT \
--env CI_REPO_SLUG=$CI_REPO_SLUG \
--env CI_BRANCH=$CI_BRANCH \
--env CI_EVENT_TYPE=$CI_EVENT_TYPE \
--env DOC_UPDATE_GITHUB_TOKEN=$DOC_UPDATE_GITHUB_TOKEN \
--env COVERITY_SCAN_TOKEN=$COVERITY_SCAN_TOKEN \
--env COVERITY_SCAN_NOTIFICATION_EMAIL=$COVERITY_SCAN_NOTIFICATION_EMAIL \
--env FAULT_INJECTION=$FAULT_INJECTION \
--env GITHUB_ACTION=$GITHUB_ACTION \
--env GITHUB_HEAD_REF=$GITHUB_HEAD_REF \
--env GITHUB_REPO=$GITHUB_REPO \
--env GITHUB_REPOSITORY=$GITHUB_REPOSITORY \
--env GITHUB_REF=$GITHUB_REF \
--env GITHUB_RUN_ID=$GITHUB_RUN_ID \
--env GITHUB_SHA=$GITHUB_SHA \
--env CI_RUN=$CI_RUN \
--env SRC_CHECKERS=$SRC_CHECKERS \
--env BLACKLIST_FILE=$BLACKLIST_FILE \
$ndctl_enable \
--tmpfs /tmp:rw,relatime,suid,dev,exec,size=6G \
-v $HOST_WORKDIR:$WORKDIR \
-v /etc/localtime:/etc/localtime \
-w $SCRIPTSDIR \
$imageName $command
| 5,193 | 35.069444 | 150 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/run-build-package.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2019, Intel Corporation
#
# run-build-package.sh - is called inside a Docker container; prepares
# the environment and starts a build of PMDK project.
#
set -e
# Prepare build enviromnent
./prepare-for-build.sh
# Create fake tag, so that package has proper 'version' field
git config user.email "[email protected]"
git config user.name "test package"
git tag -a 1.4.99 -m "1.4" HEAD~1 || true
# Build all and run tests
cd $WORKDIR
export PCHECK_OPTS="-j2 BLACKLIST_FILE=${BLACKLIST_FILE}"
make -j$(nproc) $PACKAGE_MANAGER
# Install packages
if [[ "$PACKAGE_MANAGER" == "dpkg" ]]; then
cd $PACKAGE_MANAGER
echo $USERPASS | sudo -S dpkg --install *.deb
else
RPM_ARCH=$(uname -m)
cd $PACKAGE_MANAGER/$RPM_ARCH
echo $USERPASS | sudo -S rpm --install *.rpm
fi
# Compile and run standalone test
cd $WORKDIR/utils/docker/test_package
make -j$(nproc) LIBPMEMOBJ_MIN_VERSION=1.4
./test_package testfile1
# Use pmreorder installed in the system
pmreorder_version="$(pmreorder -v)"
pmreorder_pattern="pmreorder\.py .+$"
(echo "$pmreorder_version" | grep -Ev "$pmreorder_pattern") && echo "pmreorder version failed" && exit 1
touch testfile2
touch logfile1
pmreorder -p testfile2 -l logfile1
| 1,293 | 25.958333 | 104 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/run-doc-update.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2019-2020, Intel Corporation
set -e
source `dirname $0`/valid-branches.sh
BOT_NAME="pmem-bot"
USER_NAME="pmem"
REPO_NAME="pmdk"
ORIGIN="https://${DOC_UPDATE_GITHUB_TOKEN}@github.com/${BOT_NAME}/${REPO_NAME}"
UPSTREAM="https://github.com/${USER_NAME}/${REPO_NAME}"
# master or stable-* branch
TARGET_BRANCH=${CI_BRANCH}
VERSION=${TARGET_BRANCHES[$TARGET_BRANCH]}
if [ -z $VERSION ]; then
echo "Target location for branch $TARGET_BRANCH is not defined."
exit 1
fi
# Clone bot repo
git clone ${ORIGIN}
cd ${REPO_NAME}
git remote add upstream ${UPSTREAM}
git config --local user.name ${BOT_NAME}
git config --local user.email "[email protected]"
git remote update
git checkout -B ${TARGET_BRANCH} upstream/${TARGET_BRANCH}
# Copy man & PR web md
cd ./doc
make -j$(nproc) web
cd ..
mv ./doc/web_linux ../
mv ./doc/web_windows ../
mv ./doc/generated/libs_map.yml ../
# Checkout gh-pages and copy docs
GH_PAGES_NAME="gh-pages-for-${TARGET_BRANCH}"
git checkout -B $GH_PAGES_NAME upstream/gh-pages
git clean -dfx
rsync -a ../web_linux/ ./manpages/linux/${VERSION}/
rsync -a ../web_windows/ ./manpages/windows/${VERSION}/ \
--exclude='librpmem' \
--exclude='rpmemd' --exclude='pmreorder' \
--exclude='daxio'
rm -r ../web_linux
rm -r ../web_windows
if [ $TARGET_BRANCH = "master" ]; then
[ ! -d _data ] && mkdir _data
cp ../libs_map.yml _data
fi
# Add and push changes.
# git commit command may fail if there is nothing to commit.
# In that case we want to force push anyway (there might be open pull request
# with changes which were reverted).
git add -A
git commit -m "doc: automatic gh-pages docs update" && true
git push -f ${ORIGIN} $GH_PAGES_NAME
GITHUB_TOKEN=${DOC_UPDATE_GITHUB_TOKEN} hub pull-request -f \
-b ${USER_NAME}:gh-pages \
-h ${BOT_NAME}:${GH_PAGES_NAME} \
-m "doc: automatic gh-pages docs update" && true
exit 0
| 1,924 | 24 | 79 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/pull-or-rebuild-image.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
#
# pull-or-rebuild-image.sh - rebuilds the Docker image used in the
# current Travis build if necessary.
#
# The script rebuilds the Docker image if the Dockerfile for the current
# OS version (Dockerfile.${OS}-${OS_VER}) or any .sh script from the directory
# with Dockerfiles were modified and committed.
#
# If the Travis build is not of the "pull_request" type (i.e. in case of
# merge after pull_request) and it succeed, the Docker image should be pushed
# to the Docker Hub repository. An empty file is created to signal that to
# further scripts.
#
# If the Docker image does not have to be rebuilt, it will be pulled from
# Docker Hub.
#
set -e
source $(dirname $0)/set-ci-vars.sh
source $(dirname $0)/set-vars.sh
if [[ "$CI_EVENT_TYPE" != "cron" && "$CI_BRANCH" != "coverity_scan" \
&& "$COVERITY" -eq 1 ]]; then
echo "INFO: Skip Coverity scan job if build is triggered neither by " \
"'cron' nor by a push to 'coverity_scan' branch"
exit 0
fi
if [[ ( "$CI_EVENT_TYPE" == "cron" || "$CI_BRANCH" == "coverity_scan" )\
&& "$COVERITY" -ne 1 ]]; then
echo "INFO: Skip regular jobs if build is triggered either by 'cron'" \
" or by a push to 'coverity_scan' branch"
exit 0
fi
if [[ -z "$OS" || -z "$OS_VER" ]]; then
echo "ERROR: The variables OS and OS_VER have to be set properly " \
"(eg. OS=ubuntu, OS_VER=16.04)."
exit 1
fi
if [[ -z "$HOST_WORKDIR" ]]; then
echo "ERROR: The variable HOST_WORKDIR has to contain a path to " \
"the root of the PMDK project on the host machine"
exit 1
fi
# Find all the commits for the current build
if [ -n "$CI_COMMIT_RANGE" ]; then
commits=$(git rev-list $CI_COMMIT_RANGE)
else
commits=$CI_COMMIT
fi
echo "Commits in the commit range:"
for commit in $commits; do echo $commit; done
# Get the list of files modified by the commits
files=$(for commit in $commits; do git diff-tree --no-commit-id --name-only \
-r $commit; done | sort -u)
echo "Files modified within the commit range:"
for file in $files; do echo $file; done
# Path to directory with Dockerfiles and image building scripts
images_dir_name=images
base_dir=utils/docker/$images_dir_name
# Check if committed file modifications require the Docker image to be rebuilt
for file in $files; do
# Check if modified files are relevant to the current build
if [[ $file =~ ^($base_dir)\/Dockerfile\.($OS)-($OS_VER)$ ]] \
|| [[ $file =~ ^($base_dir)\/.*\.sh$ ]]
then
# Rebuild Docker image for the current OS version
echo "Rebuilding the Docker image for the Dockerfile.$OS-$OS_VER"
pushd $images_dir_name
./build-image.sh ${OS}-${OS_VER} ${CI_CPU_ARCH}
popd
# Check if the image has to be pushed to Docker Hub
# (i.e. the build is triggered by commits to the $GITHUB_REPO
# repository's stable-* or master branch, and the Travis build is not
# of the "pull_request" type). In that case, create the empty
# file.
if [[ "$CI_REPO_SLUG" == "$GITHUB_REPO" \
&& ($CI_BRANCH == stable-* || $CI_BRANCH == devel-* || $CI_BRANCH == master) \
&& $CI_EVENT_TYPE != "pull_request" \
&& $PUSH_IMAGE == "1" ]]
then
echo "The image will be pushed to Docker Hub"
touch $CI_FILE_PUSH_IMAGE_TO_REPO
else
echo "Skip pushing the image to Docker Hub"
fi
if [[ $PUSH_IMAGE == "1" ]]
then
echo "Skip build package check if image has to be pushed"
touch $CI_FILE_SKIP_BUILD_PKG_CHECK
fi
exit 0
fi
done
# Getting here means rebuilding the Docker image is not required.
# Pull the image from Docker Hub.
docker pull ${DOCKERHUB_REPO}:1.9-${OS}-${OS_VER}-${CI_CPU_ARCH}
| 3,681 | 31.584071 | 81 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/valid-branches.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2018-2020, Intel Corporation
declare -A TARGET_BRANCHES=( \
["master"]="master" \
["stable-1.5"]="v1.5" \
["stable-1.6"]="v1.6" \
["stable-1.7"]="v1.7" \
["stable-1.8"]="v1.8" \
["stable-1.9"]="v1.9" \
)
| 291 | 21.461538 | 40 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/configure-tests.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
#
# configure-tests.sh - is called inside a Docker container; configures tests
# and ssh server for use during build of PMDK project.
#
set -e
# Configure tests
cat << EOF > $WORKDIR/src/test/testconfig.sh
LONGDIR=LoremipsumdolorsitametconsecteturadipiscingelitVivamuslacinianibhattortordictumsollicitudinNullamvariusvestibulumligulaetegestaselitsemperidMaurisultriciesligulaeuipsumtinciduntluctusMorbimaximusvariusdolorid
# this path is ~3000 characters long
DIRSUFFIX="$LONGDIR/$LONGDIR/$LONGDIR/$LONGDIR/$LONGDIR"
NON_PMEM_FS_DIR=/tmp
PMEM_FS_DIR=/tmp
PMEM_FS_DIR_FORCE_PMEM=1
TEST_BUILD="debug nondebug"
ENABLE_SUDO_TESTS=y
TM=1
EOF
# Configure remote tests
if [[ $REMOTE_TESTS -eq 1 ]]; then
echo "Configuring remote tests"
cat << EOF >> $WORKDIR/src/test/testconfig.sh
NODE[0]=127.0.0.1
NODE_WORKING_DIR[0]=/tmp/node0
NODE_ADDR[0]=127.0.0.1
NODE_ENV[0]="PMEM_IS_PMEM_FORCE=1"
NODE[1]=127.0.0.1
NODE_WORKING_DIR[1]=/tmp/node1
NODE_ADDR[1]=127.0.0.1
NODE_ENV[1]="PMEM_IS_PMEM_FORCE=1"
NODE[2]=127.0.0.1
NODE_WORKING_DIR[2]=/tmp/node2
NODE_ADDR[2]=127.0.0.1
NODE_ENV[2]="PMEM_IS_PMEM_FORCE=1"
NODE[3]=127.0.0.1
NODE_WORKING_DIR[3]=/tmp/node3
NODE_ADDR[3]=127.0.0.1
NODE_ENV[3]="PMEM_IS_PMEM_FORCE=1"
TEST_BUILD="debug nondebug"
TEST_PROVIDERS=sockets
EOF
mkdir -p ~/.ssh/cm
cat << EOF >> ~/.ssh/config
Host 127.0.0.1
StrictHostKeyChecking no
ControlPath ~/.ssh/cm/%r@%h:%p
ControlMaster auto
ControlPersist 10m
EOF
if [ ! -f /etc/ssh/ssh_host_rsa_key ]
then
(echo $USERPASS | sudo -S ssh-keygen -t rsa -C $USER@$HOSTNAME -P '' -f /etc/ssh/ssh_host_rsa_key)
fi
echo $USERPASS | sudo -S sh -c 'cat /etc/ssh/ssh_host_rsa_key.pub >> /etc/ssh/authorized_keys'
ssh-keygen -t rsa -C $USER@$HOSTNAME -P '' -f ~/.ssh/id_rsa
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
chmod -R 700 ~/.ssh
chmod 640 ~/.ssh/authorized_keys
chmod 600 ~/.ssh/config
# Start ssh service
echo $USERPASS | sudo -S $START_SSH_COMMAND
ssh 127.0.0.1 exit 0
else
echo "Skipping remote tests"
echo
echo "Removing all libfabric.pc files in order to simulate that libfabric is not installed:"
find /usr -name "libfabric.pc" 2>/dev/null || true
echo $USERPASS | sudo -S sh -c 'find /usr -name "libfabric.pc" -exec rm -f {} + 2>/dev/null'
fi
# Configure python tests
cat << EOF >> $WORKDIR/src/test/testconfig.py
config = {
'unittest_log_level': 1,
'cacheline_fs_dir': '/tmp',
'force_cacheline': True,
'page_fs_dir': '/tmp',
'force_page': False,
'byte_fs_dir': '/tmp',
'force_byte': True,
'tm': True,
'test_type': 'check',
'granularity': 'all',
'fs_dir_force_pmem': 0,
'keep_going': False,
'timeout': '3m',
'build': ['debug', 'release'],
'force_enable': None,
'device_dax_path': [],
'fail_on_skip': False,
'enable_admin_tests': True
}
EOF
| 2,886 | 26.235849 | 216 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/set-vars.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2019, Intel Corporation
#
# set-vars.sh - set required environment variables
#
set -e
export CI_FILE_PUSH_IMAGE_TO_REPO=/tmp/push_image_to_repo_flag
export CI_FILE_SKIP_BUILD_PKG_CHECK=/tmp/skip_build_package_check
| 290 | 21.384615 | 65 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/run-coverity.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2017-2020, Intel Corporation
#
# run-coverity.sh - runs the Coverity scan build
#
set -e
if [[ "$CI_REPO_SLUG" != "$GITHUB_REPO" \
&& ( "$COVERITY_SCAN_NOTIFICATION_EMAIL" == "" \
|| "$COVERITY_SCAN_TOKEN" == "" ) ]]; then
echo
echo "Skipping Coverity build:"\
"COVERITY_SCAN_TOKEN=\"$COVERITY_SCAN_TOKEN\" or"\
"COVERITY_SCAN_NOTIFICATION_EMAIL="\
"\"$COVERITY_SCAN_NOTIFICATION_EMAIL\" is not set"
exit 0
fi
# Prepare build environment
./prepare-for-build.sh
CERT_FILE=/etc/ssl/certs/ca-certificates.crt
TEMP_CF=$(mktemp)
cp $CERT_FILE $TEMP_CF
# Download Coverity certificate
echo -n | openssl s_client -connect scan.coverity.com:443 | \
sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | \
tee -a $TEMP_CF
echo $USERPASS | sudo -S mv $TEMP_CF $CERT_FILE
export COVERITY_SCAN_PROJECT_NAME="$CI_REPO_SLUG"
[[ "$CI_EVENT_TYPE" == "cron" ]] \
&& export COVERITY_SCAN_BRANCH_PATTERN="master" \
|| export COVERITY_SCAN_BRANCH_PATTERN="coverity_scan"
export COVERITY_SCAN_BUILD_COMMAND="make -j$(nproc) all"
cd $WORKDIR
#
# Run the Coverity scan
#
# The 'travisci_build_coverity_scan.sh' script requires the following
# environment variables to be set:
# - TRAVIS_BRANCH - has to contain the name of the current branch
# - TRAVIS_PULL_REQUEST - has to be set to 'true' in case of pull requests
#
export TRAVIS_BRANCH=${CI_BRANCH}
[ "${CI_EVENT_TYPE}" == "pull_request" ] && export TRAVIS_PULL_REQUEST="true"
# XXX: Patch the Coverity script.
# Recently, this script regularly exits with an error, even though
# the build is successfully submitted. Probably because the status code
# is missing in response, or it's not 201.
# Changes:
# 1) change the expected status code to 200 and
# 2) print the full response string.
#
# This change should be reverted when the Coverity script is fixed.
#
# The previous version was:
# curl -s https://scan.coverity.com/scripts/travisci_build_coverity_scan.sh | bash
wget https://scan.coverity.com/scripts/travisci_build_coverity_scan.sh
patch < utils/docker/0001-travis-fix-travisci_build_coverity_scan.sh.patch
bash ./travisci_build_coverity_scan.sh
| 2,196 | 29.513889 | 82 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/run-coverage.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2017-2019, Intel Corporation
#
# run-coverage.sh - is called inside a Docker container; runs the coverage
# test
#
set -e
# Get and prepare PMDK source
./prepare-for-build.sh
# Hush error messages, mainly from Valgrind
export UT_DUMP_LINES=0
# Skip printing mismatched files for tests with Valgrind
export UT_VALGRIND_SKIP_PRINT_MISMATCHED=1
# Build all and run tests
cd $WORKDIR
make -j$(nproc) COVERAGE=1
make -j$(nproc) test COVERAGE=1
# XXX: unfortunately valgrind raports issues in coverage instrumentation
# which we have to ignore (-k flag), also there is dependency between
# local and remote tests (which cannot be easily removed) we have to
# run local and remote tests separately
cd src/test
# do not change -j2 to -j$(nproc) in case of tests (make check/pycheck)
make -kj2 pcheck-local-quiet TEST_BUILD=debug || true
make check-remote-quiet TEST_BUILD=debug || true
# do not change -j2 to -j$(nproc) in case of tests (make check/pycheck)
make -j2 pycheck TEST_BUILD=debug || true
cd ../..
bash <(curl -s https://codecov.io/bash)
| 1,138 | 28.973684 | 74 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/images/install-valgrind.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
#
# install-valgrind.sh - installs valgrind for persistent memory
#
set -e
OS=$1
install_upstream_from_distro() {
case "$OS" in
fedora) dnf install -y valgrind ;;
ubuntu) apt-get install -y --no-install-recommends valgrind ;;
*) return 1 ;;
esac
}
install_upstream_3_16_1() {
git clone git://sourceware.org/git/valgrind.git
cd valgrind
# valgrind v3.16.1 upstream
git checkout VALGRIND_3_16_BRANCH
./autogen.sh
./configure
make -j$(nproc)
make -j$(nproc) install
cd ..
rm -rf valgrind
}
install_custom-pmem_from_source() {
git clone https://github.com/pmem/valgrind.git
cd valgrind
# valgrind v3.15 with pmemcheck
# 2020.04.01 Merge pull request #78 from marcinslusarz/opt3
git checkout 759686fd66cc0105df8311cfe676b0b2f9e89196
./autogen.sh
./configure
make -j$(nproc)
make -j$(nproc) install
cd ..
rm -rf valgrind
}
ARCH=$(uname -m)
case "$ARCH" in
ppc64le) install_upstream_3_16_1 ;;
*) install_custom-pmem_from_source ;;
esac
| 1,099 | 19.754717 | 66 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/images/build-image.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
#
# build-image.sh <OS-VER> <ARCH> - prepares a Docker image with <OS>-based
# environment intended for the <ARCH> CPU architecture
# designed for building PMDK project, according to
# the Dockerfile.<OS-VER> file located in the same directory.
#
# The script can be run locally.
#
set -e
OS_VER=$1
CPU_ARCH=$2
function usage {
echo "Usage:"
echo " build-image.sh <OS-VER> <ARCH>"
echo "where:"
echo " <OS-VER> - can be for example 'ubuntu-19.10' provided "\
"a Dockerfile named 'Dockerfile.ubuntu-19.10' "\
"exists in the current directory and"
echo " <ARCH> - is a CPU architecture, for example 'x86_64'"
}
# Check if two first arguments are not empty
if [[ -z "$2" ]]; then
usage
exit 1
fi
# Check if the file Dockerfile.OS-VER exists
if [[ ! -f "Dockerfile.$OS_VER" ]]; then
echo "Error: Dockerfile.$OS_VER does not exist."
echo
usage
exit 1
fi
if [[ -z "${DOCKERHUB_REPO}" ]]; then
echo "Error: DOCKERHUB_REPO environment variable is not set"
exit 1
fi
# Build a Docker image tagged with ${DOCKERHUB_REPO}:OS-VER-ARCH
tag=${DOCKERHUB_REPO}:1.9-${OS_VER}-${CPU_ARCH}
docker build -t $tag \
--build-arg http_proxy=$http_proxy \
--build-arg https_proxy=$https_proxy \
-f Dockerfile.$OS_VER .
| 1,373 | 24.444444 | 76 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/images/install-libfabric.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
#
# 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 $libfabric_dir
# XXX HACK HACK HACK
# Disable use of spin locks in libfabric.
#
# spinlocks do not play well (IOW at all) with cpu-constrained environments,
# like GitHub Actions, and this leads to timeouts of some PMDK's tests.
# This change speeds up pmempool_sync_remote/TEST28-31 by a factor of 20-30.
#
perl -pi -e 's/have_spinlock=1/have_spinlock=0/' configure.ac
# XXX HACK HACK HACK
./autogen.sh
./configure --prefix=/usr --enable-sockets
make -j$(nproc)
make -j$(nproc) install
cd ..
rm -f ${libfabric_tarball}
rm -rf ${libfabric_dir}
| 1,019 | 23.878049 | 76 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/images/install-libndctl.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2017-2019, Intel Corporation
#
# install-libndctl.sh - installs libndctl
#
set -e
OS=$2
echo "==== clone ndctl repo ===="
git clone https://github.com/pmem/ndctl.git
cd ndctl
git checkout $1
if [ "$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-${VERSION}.tar.gz"
echo "==== build ndctl ===="
./autogen.sh
./configure --disable-docs
make -j$(nproc)
echo "==== build ndctl packages ===="
rpmbuild -ba $SPEC
echo "==== install ndctl packages ===="
RPM_ARCH=$(uname -m)
rpm -i $RPMDIR/RPMS/$RPM_ARCH/*.rpm
echo "==== cleanup ===="
rm -rf $RPMDIR
else
echo "==== build ndctl ===="
./autogen.sh
./configure --disable-docs
make -j$(nproc)
echo "==== install ndctl ===="
make -j$(nproc) install
echo "==== cleanup ===="
fi
cd ..
rm -rf ndctl
| 1,057 | 16.344262 | 109 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/deps/pmdk/utils/docker/images/push-image.sh | #!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
#
# push-image.sh - pushes the Docker image to the Docker Hub.
#
# The script utilizes $DOCKERHUB_USER and $DOCKERHUB_PASSWORD variables
# to log in to Docker Hub. The variables can be set in the Travis project's
# configuration for automated builds.
#
set -e
source $(dirname $0)/../set-ci-vars.sh
if [[ -z "$OS" ]]; then
echo "OS environment variable is not set"
exit 1
fi
if [[ -z "$OS_VER" ]]; then
echo "OS_VER environment variable is not set"
exit 1
fi
if [[ -z "$CI_CPU_ARCH" ]]; then
echo "CI_CPU_ARCH environment variable is not set"
exit 1
fi
if [[ -z "${DOCKERHUB_REPO}" ]]; then
echo "DOCKERHUB_REPO environment variable is not set"
exit 1
fi
TAG="1.9-${OS}-${OS_VER}-${CI_CPU_ARCH}"
# Check if the image tagged with pmdk/OS-VER exists locally
if [[ ! $(docker images -a | awk -v pattern="^${DOCKERHUB_REPO}:${TAG}\$" \
'$1":"$2 ~ pattern') ]]
then
echo "ERROR: Docker image tagged ${DOCKERHUB_REPO}:${TAG} does not exists locally."
exit 1
fi
# Log in to the Docker Hub
docker login -u="$DOCKERHUB_USER" -p="$DOCKERHUB_PASSWORD"
# Push the image to the repository
docker push ${DOCKERHUB_REPO}:${TAG}
| 1,236 | 22.788462 | 84 | sh |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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 |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/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 |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/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 |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/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 | html |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/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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<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
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<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
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<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
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</BODY>
</HTML>
| 22,482 | 44.146586 | 93 | html |
null | NearPMSW-main/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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/nearpm/logging/redis/redis-NDP/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 |
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