2 * Copyright (C) 2008 The Android Open Source Project
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31 #include <sys/cdefs.h>
36 volatile unsigned int count;
39 #define SEM_FAILED NULL
41 extern int sem_init(sem_t *sem, int pshared, unsigned int value);
43 extern int sem_close(sem_t *);
44 extern int sem_destroy(sem_t *);
45 extern int sem_getvalue(sem_t *, int *);
46 extern int sem_init(sem_t *, int, unsigned int);
47 extern sem_t *sem_open(const char *, int, ...);
48 extern int sem_post(sem_t *);
49 extern int sem_trywait(sem_t *);
50 extern int sem_unlink(const char *);
51 extern int sem_wait(sem_t *);
54 extern int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout);
58 #endif /* _SEMAPHORE_H */