1/*
2 * Copyright 2008-2012 Haiku, Inc.
3 * Distributed under the terms of the MIT License.
4 */
5#ifndef _SEMAPHORE_H_
6#define _SEMAPHORE_H_
7
8
9#include <fcntl.h>
10#include <stdint.h>
11#include <sys/cdefs.h>
12#include <time.h>
13
14
15typedef struct _sem_t {
16	int32_t	id;
17	int32_t	_padding[3];
18} sem_t;
19
20#define SEM_FAILED	((sem_t*)(long)-1)
21
22__BEGIN_DECLS
23
24sem_t*	sem_open(const char* name, int openFlags,...);
25int		sem_close(sem_t* semaphore);
26int		sem_unlink(const char* name);
27
28int		sem_init(sem_t* semaphore, int shared, unsigned value);
29int		sem_destroy(sem_t* semaphore);
30
31int		sem_post(sem_t* semaphore);
32int		sem_timedwait(sem_t* semaphore, const struct timespec* timeout);
33int		sem_trywait(sem_t* semaphore);
34int		sem_wait(sem_t* semaphore);
35int		sem_getvalue(sem_t* semaphore, int* value);
36
37__END_DECLS
38
39
40#endif	/* _SEMAPHORE_H_ */
41