103 lines
2.8 KiB
C
103 lines
2.8 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "fspr_general.h"
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#include "fspr_lib.h"
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#include "fspr_strings.h"
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#include "fspr_portable.h"
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#include "fspr_arch_thread_mutex.h"
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#include "fspr_arch_file_io.h"
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#include <string.h>
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#include <stddef.h>
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static fspr_status_t thread_mutex_cleanup(void *themutex)
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{
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fspr_thread_mutex_t *mutex = themutex;
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return fspr_thread_mutex_destroy(mutex);
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}
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/* XXX: Need to respect APR_THREAD_MUTEX_[UN]NESTED flags argument
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* or return APR_ENOTIMPL!!!
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*/
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APR_DECLARE(fspr_status_t) fspr_thread_mutex_create(fspr_thread_mutex_t **mutex,
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unsigned int flags,
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fspr_pool_t *pool)
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{
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fspr_thread_mutex_t *new_mutex;
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ULONG rc;
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new_mutex = (fspr_thread_mutex_t *)fspr_palloc(pool, sizeof(fspr_thread_mutex_t));
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new_mutex->pool = pool;
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rc = DosCreateMutexSem(NULL, &(new_mutex->hMutex), 0, FALSE);
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*mutex = new_mutex;
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if (!rc)
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fspr_pool_cleanup_register(pool, new_mutex, thread_mutex_cleanup, fspr_pool_cleanup_null);
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return APR_OS2_STATUS(rc);
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}
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APR_DECLARE(fspr_status_t) fspr_thread_mutex_lock(fspr_thread_mutex_t *mutex)
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{
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ULONG rc = DosRequestMutexSem(mutex->hMutex, SEM_INDEFINITE_WAIT);
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return APR_OS2_STATUS(rc);
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}
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APR_DECLARE(fspr_status_t) fspr_thread_mutex_trylock(fspr_thread_mutex_t *mutex)
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{
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ULONG rc = DosRequestMutexSem(mutex->hMutex, SEM_IMMEDIATE_RETURN);
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return APR_OS2_STATUS(rc);
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}
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APR_DECLARE(fspr_status_t) fspr_thread_mutex_unlock(fspr_thread_mutex_t *mutex)
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{
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ULONG rc = DosReleaseMutexSem(mutex->hMutex);
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return APR_OS2_STATUS(rc);
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}
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APR_DECLARE(fspr_status_t) fspr_thread_mutex_destroy(fspr_thread_mutex_t *mutex)
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{
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ULONG rc;
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if (mutex->hMutex == 0)
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return APR_SUCCESS;
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while (DosReleaseMutexSem(mutex->hMutex) == 0);
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rc = DosCloseMutexSem(mutex->hMutex);
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if (!rc) {
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mutex->hMutex = 0;
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return APR_SUCCESS;
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}
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return APR_FROM_OS_ERROR(rc);
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}
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APR_POOL_IMPLEMENT_ACCESSOR(thread_mutex)
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