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/* Copyright 2000-2005 The Apache Software Foundation or its licensors, as
* applicable.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "apr.h"
#if APR_HAS_THREADS
#include "apr_arch_thread_mutex.h"
#include "apr_arch_thread_cond.h"
static apr_status_t thread_cond_cleanup(void *data)
{
apr_thread_cond_t *cond = (apr_thread_cond_t *)data;
apr_status_t rv;
rv = pthread_cond_destroy(&cond->cond);
#ifdef PTHREAD_SETS_ERRNO
if (rv) {
rv = errno;
}
#endif
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_cond_create(apr_thread_cond_t **cond,
apr_pool_t *pool)
{
apr_thread_cond_t *new_cond;
apr_status_t rv;
new_cond = apr_palloc(pool, sizeof(apr_thread_cond_t));
new_cond->pool = pool;
if ((rv = pthread_cond_init(&new_cond->cond, NULL))) {
#ifdef PTHREAD_SETS_ERRNO
rv = errno;
#endif
return rv;
}
apr_pool_cleanup_register(new_cond->pool,
(void *)new_cond, thread_cond_cleanup,
apr_pool_cleanup_null);
*cond = new_cond;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_wait(apr_thread_cond_t *cond,
apr_thread_mutex_t *mutex)
{
apr_status_t rv;
rv = pthread_cond_wait(&cond->cond, &mutex->mutex);
#ifdef PTHREAD_SETS_ERRNO
if (rv) {
rv = errno;
}
#endif
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_cond_timedwait(apr_thread_cond_t *cond,
apr_thread_mutex_t *mutex,
apr_interval_time_t timeout)
{
apr_status_t rv;
apr_time_t then;
struct timespec abstime;
then = apr_time_now() + timeout;
abstime.tv_sec = apr_time_sec(then);
abstime.tv_nsec = apr_time_usec(then) * 1000; /* nanoseconds */
rv = pthread_cond_timedwait(&cond->cond, &mutex->mutex, &abstime);
#ifdef PTHREAD_SETS_ERRNO
if (rv) {
rv = errno;
}
#endif
if (ETIMEDOUT == rv) {
return APR_TIMEUP;
}
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_cond_signal(apr_thread_cond_t *cond)
{
apr_status_t rv;
rv = pthread_cond_signal(&cond->cond);
#ifdef PTHREAD_SETS_ERRNO
if (rv) {
rv = errno;
}
#endif
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_cond_broadcast(apr_thread_cond_t *cond)
{
apr_status_t rv;
rv = pthread_cond_broadcast(&cond->cond);
#ifdef PTHREAD_SETS_ERRNO
if (rv) {
rv = errno;
}
#endif
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_cond_destroy(apr_thread_cond_t *cond)
{
return apr_pool_cleanup_run(cond->pool, cond, thread_cond_cleanup);
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_cond)
#endif /* APR_HAS_THREADS */
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