#ifndef _SYS_SEM_H
#define _SYS_SEM_H
#ifdef __cplusplus
extern "C" {
#endif

#include <features.h>

#define __NEED_size_t
#define __NEED_pid_t
#define __NEED_time_t
#ifdef _GNU_SOURCE
#define __NEED_struct_timespec
#endif
#include <bits/alltypes.h>

#include <sys/ipc.h>

#define SEM_UNDO 0x1000
#define GETPID 11
#define GETVAL 12
#define GETALL 13
#define GETNCNT 14
#define GETZCNT 15
#define SETVAL 16
#define SETALL 17

#include <endian.h>

#include <bits/sem.h>

#define _SEM_SEMUN_UNDEFINED 1

#define SEM_STAT 18
#define SEM_INFO 19

struct seminfo {
  int semmap;
  int semmni;
  int semmns;
  int semmnu;
  int semmsl;
  int semopm;
  int semume;
  int semusz;
  int semvmx;
  int semaem;
};

struct sembuf {
  unsigned short sem_num;
  short sem_op;
  short sem_flg;
};

int semctl(int, int, int, ...);
int semget(key_t, int, int);
int semop(int, struct sembuf*, size_t);

#ifdef _GNU_SOURCE
int semtimedop(int, struct sembuf*, size_t, const struct timespec*);
#endif

#ifdef __cplusplus
}
#endif
#endif