105 lines
2.3 KiB
C
105 lines
2.3 KiB
C
/* posix_utils.c
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*
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* Copyright (C) 2006-2024 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <semaphore.h>
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#include <errno.h>
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#include <time.h>
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/* Event handling for POSIX port */
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typedef struct event_t {
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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int signaled;
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} event_t;
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/* Create event */
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void* event_create(void)
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{
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event_t* event = (event_t*)malloc(sizeof(event_t));
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if (event) {
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pthread_mutex_init(&event->mutex, NULL);
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pthread_cond_init(&event->cond, NULL);
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event->signaled = 0;
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}
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return event;
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}
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/* Wait for event */
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int event_wait(void* handle)
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{
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event_t* event = (event_t*)handle;
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int ret = 0;
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if (!event) {
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return -1;
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}
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pthread_mutex_lock(&event->mutex);
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while (!event->signaled) {
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ret = pthread_cond_wait(&event->cond, &event->mutex);
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if (ret != 0) {
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break;
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}
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}
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event->signaled = 0;
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pthread_mutex_unlock(&event->mutex);
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return ret;
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}
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/* Signal event */
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int event_signal(void* handle)
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{
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event_t* event = (event_t*)handle;
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int ret = 0;
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if (!event) {
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return -1;
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}
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pthread_mutex_lock(&event->mutex);
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event->signaled = 1;
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ret = pthread_cond_signal(&event->cond);
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pthread_mutex_unlock(&event->mutex);
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return ret;
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}
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/* Delete event */
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int event_delete(void* handle)
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{
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event_t* event = (event_t*)handle;
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int ret = 0;
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if (!event) {
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return -1;
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}
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pthread_mutex_destroy(&event->mutex);
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pthread_cond_destroy(&event->cond);
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free(event);
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return ret;
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}
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