/*
 * Copyright (c) 2020 AIIT XUOS Lab
 * XiUOS  is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *        http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */

/**
* @file:    semaphore.h
* @brief:   the functions definition of posix semaphore
* @version: 1.0
* @author:  AIIT XUOS Lab
* @date:    2020/4/20
*
*/

#ifndef SEMAPHORE_H
#define SEMAPHORE_H

#ifdef __cplusplus
extern "C" {
#endif

#include "../../switch_api/user_api.h"
#include <time.h>

typedef int sem_t;

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);
int    sem_getvalue(sem_t *sem, int *sval);
int    sem_close(sem_t *sem);
int    sem_destroy(sem_t *sem);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* SEMAPHORE_H */