text: /*
   * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
   *
   * SPDX-License-Identifier: BSD-2-Clause
   */
  
  #pragma once
  
  #include <stdio.h>
  #include <sys/types.h>
  #include <unistd.h>
  
  __BEGIN_DECLS
  
  int disown(pid_t);
  
  int module_load(const char* path, size_t path_length);
  int module_unload(const char* name, size_t name_length);
  
  int profiling_enable(pid_t);
  int profiling_disable(pid_t);
  int profiling_free_buffer(pid_t);
  
  #define THREAD_PRIORITY_MIN 1
  #define THREAD_PRIORITY_LOW 10
  #define THREAD_PRIORITY_NORMAL 30
  #define THREAD_PRIORITY_HIGH 50
  #define THREAD_PRIORITY_MAX 99
  
  #define _FUTEX_OP_SHIFT_OP 28
  #define _FUTEX_OP_MASK_OP 0xf
  #define _FUTEX_OP_SHIFT_CMP 24
  #define _FUTEX_OP_MASK_CMP 0xf
  #define _FUTEX_OP_SHIFT_OP_ARG 12
  #define _FUTEX_OP_MASK_OP_ARG 0xfff
  #define _FUTEX_OP_SHIFT_CMP_ARG 0
  #define _FUTEX_OP_MASK_CMP_ARG 0xfff
  
  #define FUTEX_OP(op, op_arg, cmp, cmp_arg) \
      ((((op)&_FUTEX_OP_MASK_OP) << _FUTEX_OP_SHIFT_OP) | (((cmp)&_FUTEX_OP_MASK_CMP) << _FUTEX_OP_SHIFT_CMP) | (((op_arg)&_FUTEX_OP_MASK_OP_ARG) << _FUTEX_OP_SHIFT_OP_ARG) | (((cmp_arg)&_FUTEX_OP_MASK_CMP_ARG) << _FUTEX_OP_SHIFT_CMP_ARG))
  
  #define FUTEX_OP_SET 0
  #define FUTEX_OP_ADD 1
  #define FUTEX_OP_OR 2
  #define FUTEX_OP_ANDN 3
  #define FUTEX_OP_XOR 4
  #define FUTEX_OP_ARG_SHIFT 8
  
  #define FUTEX_OP_CMP_EQ 0
  #define FUTEX_OP_CMP_NE 1
  #define FUTEX_OP_CMP_LT 2
  #define FUTEX_OP_CMP_LE 3
  #define FUTEX_OP_CMP_GT 4
  #define FUTEX_OP_CMP_GE 5
  
  #define FUTEX_WAIT 1
  #define FUTEX_WAKE 2
  
  #define FUTEX_REQUEUE 3
  #define FUTEX_CMP_REQUEUE 4
  #define FUTEX_WAKE_OP 5
  #define FUTEX_WAIT_BITSET 9
  #define FUTEX_WAKE_BITSET 10
  
  #define FUTEX_PRIVATE_FLAG (1 << 7)
  #define FUTEX_CLOCK_REALTIME (1 << 8)
  #define FUTEX_CMD_MASK ~(FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME)
  
  #define FUTEX_BITSET_MATCH_ANY 0xffffffff
  
  int futex(uint32_t* userspace_address, int futex_op, uint32_t value, const struct timespec* timeout, uint32_t* userspace_address2, uint32_t value3);
  
  #define PURGE_ALL_VOLATILE 0x1
  #define PURGE_ALL_CLEAN_INODE 0x2
  
  int purge(int mode);
  
  #define PERF_EVENT_SAMPLE 0
  #define PERF_EVENT_MALLOC 1
  #define PERF_EVENT_FREE 2
  
  int perf_event(int type, uintptr_t arg1, uintptr_t arg2);
  
  int get_stack_bounds(uintptr_t* user_stack_base, size_t* user_stack_size);
  
  int anon_create(size_t size, int options);
  
  int serenity_readlink(const char* path, size_t path_length, char* buffer, size_t buffer_size);
  
  int getkeymap(char* name_buffer, size_t name_buffer_size, uint32_t* map, uint32_t* shift_map, uint32_t* alt_map, uint32_t* altgr_map, uint32_t* shift_altgr_map);
  int setkeymap(const char* name, const uint32_t* map, uint32_t* const shift_map, const uint32_t* alt_map, const uint32_t* altgr_map, const uint32_t* shift_altgr_map);
  
  uint16_t internet_checksum(const void* ptr, size_t count);
  
  __END_DECLS
  