include/semaphore.h

   1 #ifndef _SEMAPHORE_H
   2 #define _SEMAPHORE_H
   3 #ifdef __cplusplus
   4 extern "C" {
   5 #endif
   6
   7 #include <features.h>
   8
   9 #define __NEED_time_t
  10 #define __NEED_struct_timespec
  11 #include <bits/alltypes.h>
  12
  13 #include <fcntl.h>
  14
  15 #define SEM_FAILED ((sem_t *)0)
  16
  17 typedef struct {
  18         volatile int __val[4*sizeof(long)/sizeof(int)];
  19 } sem_t;
  20
  21 int    sem_close(sem_t *);
  22 int    sem_destroy(sem_t *);
  23 int    sem_getvalue(sem_t *__restrict, int *__restrict);
  24 int    sem_init(sem_t *, int, unsigned);
  25 sem_t *sem_open(const char *, int, ...);
  26 int    sem_post(sem_t *);
  27 int    sem_timedwait(sem_t *__restrict, const struct timespec *__restrict);
  28 int    sem_trywait(sem_t *);
  29 int    sem_unlink(const char *);
  30 int    sem_wait(sem_t *);
  31
  32 #ifdef __cplusplus
  33 }
  34 #endif
  35 #endif