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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"
#include "apr_private.h"
#include "apr_general.h"
#include "apr_strings.h"
#include "apr_arch_thread_mutex.h"
#include "apr_portable.h"
static apr_status_t thread_mutex_cleanup(void *data)
{
apr_thread_mutex_t *mutex = (apr_thread_mutex_t *)data;
NXMutexFree(mutex->mutex);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_create(apr_thread_mutex_t **mutex,
unsigned int flags,
apr_pool_t *pool)
{
apr_thread_mutex_t *new_mutex = NULL;
/* XXX: Implement _UNNESTED flavor and favor _DEFAULT for performance
*/
if (flags & APR_THREAD_MUTEX_UNNESTED) {
return APR_ENOTIMPL;
}
new_mutex = (apr_thread_mutex_t *)apr_pcalloc(pool, sizeof(apr_thread_mutex_t));
if(new_mutex ==NULL) {
return APR_ENOMEM;
}
new_mutex->pool = pool;
new_mutex->mutex = NXMutexAlloc(NX_MUTEX_RECURSIVE, 0, NULL);
if(new_mutex->mutex == NULL)
return APR_ENOMEM;
apr_pool_cleanup_register(new_mutex->pool, new_mutex,
(void*)thread_mutex_cleanup,
apr_pool_cleanup_null);
*mutex = new_mutex;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_lock(apr_thread_mutex_t *mutex)
{
NXLock(mutex->mutex);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_trylock(apr_thread_mutex_t *mutex)
{
if (!NXTryLock(mutex->mutex))
return APR_EBUSY;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_unlock(apr_thread_mutex_t *mutex)
{
NXUnlock(mutex->mutex);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_destroy(apr_thread_mutex_t *mutex)
{
apr_status_t stat;
if ((stat = thread_mutex_cleanup(mutex)) == APR_SUCCESS) {
apr_pool_cleanup_kill(mutex->pool, mutex, thread_mutex_cleanup);
return APR_SUCCESS;
}
return stat;
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_mutex)
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