44 lines
989 B
C
44 lines
989 B
C
/*
|
|
* Copyright (c) 2006-2021, RT-Thread Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2010-10-26 Bernard the first version
|
|
*/
|
|
|
|
#ifndef __POSIX_SEMAPHORE_H__
|
|
#define __POSIX_SEMAPHORE_H__
|
|
|
|
#include <rtthread.h>
|
|
#include <pthread.h>
|
|
|
|
struct posix_sem
|
|
{
|
|
/* reference count and unlinked */
|
|
rt_uint16_t refcount;
|
|
rt_uint8_t unlinked;
|
|
rt_uint8_t unamed;
|
|
|
|
/* RT-Thread semaphore */
|
|
rt_sem_t sem;
|
|
|
|
/* next posix semaphore */
|
|
struct posix_sem* next;
|
|
};
|
|
typedef struct posix_sem sem_t;
|
|
|
|
int sem_close(sem_t *sem);
|
|
int sem_destroy(sem_t *sem);
|
|
int sem_getvalue(sem_t *sem, int *sval);
|
|
int sem_init(sem_t *sem, int pshared, unsigned int value);
|
|
sem_t *sem_open(const char *name, int oflag, ...);
|
|
int sem_post(sem_t *sem);
|
|
int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout);
|
|
int sem_trywait(sem_t *sem);
|
|
int sem_unlink(const char *name);
|
|
int sem_wait(sem_t *sem);
|
|
|
|
#endif
|