forked from xuos/xiuos
98 lines
1.7 KiB
C
98 lines
1.7 KiB
C
/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file: semaphore.c
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* @brief: posix api of semphore
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* @version: 1.0
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* @author: AIIT XUOS Lab
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* @date: 2020/4/20
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*
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*/
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#include "include/semaphore.h"
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#include <time.h>
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int sem_init(sem_t *sem, int pshared, unsigned int value)
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{
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int32 ret = 0;
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ret = UserSemaphoreCreate(value);
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if (ret < 0) {
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return -1;
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}
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return 0;
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}
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sem_t *sem_open(const char *name, int oflag, ...)
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{
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return 0;
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}
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int sem_post(sem_t *sem)
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{
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int ret;
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ret = UserSemaphoreAbandon(*sem);
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return ret;
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}
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int sem_timedwait(sem_t *sem, const struct timespec *abstime)
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{
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int ret ;
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int ticks = -1 ;
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if (abstime != NULL) {
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ticks = abstime->tv_sec * 1000 +
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(abstime->tv_nsec / 1000000 ) ;
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}
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ret = UserSemaphoreObtain(*sem, ticks);
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return ret;
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}
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int sem_trywait(sem_t *sem)
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{
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int ret ;
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ret = KSemaphoreObtain(*sem, 0);
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return ret;
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}
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int sem_unlink(const char *name)
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{
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return 0;
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}
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int sem_wait(sem_t *sem)
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{
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int ret ;
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ret = KSemaphoreObtain(*sem, -1);
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return ret;
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}
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int sem_getvalue(sem_t *sem, int *sval)
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{
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return 0;
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}
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int sem_close(sem_t *sem)
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{
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return 0;
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}
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int sem_destroy(sem_t *sem)
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{
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UserSemaphoreDelete(*sem);
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return 0;
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}
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