apr_thread_rwlock.h

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00001 /* Licensed to the Apache Software Foundation (ASF) under one or more
00002  * contributor license agreements.  See the NOTICE file distributed with
00003  * this work for additional information regarding copyright ownership.
00004  * The ASF licenses this file to You under the Apache License, Version 2.0
00005  * (the "License"); you may not use this file except in compliance with
00006  * the License.  You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 #ifndef APR_THREAD_RWLOCK_H
00018 #define APR_THREAD_RWLOCK_H
00019 
00025 #include "apr.h"
00026 #include "apr_pools.h"
00027 #include "apr_errno.h"
00028 
00029 #ifdef __cplusplus
00030 extern "C" {
00031 #endif /* __cplusplus */
00032 
00033 #if APR_HAS_THREADS
00034 
00042 typedef struct apr_thread_rwlock_t apr_thread_rwlock_t;
00043 
00051 APR_DECLARE(apr_status_t) apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
00052                                                    apr_pool_t *pool);
00059 APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock);
00060 
00071 APR_DECLARE(apr_status_t) apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock);
00072 
00080 APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock);
00081 
00091 APR_DECLARE(apr_status_t) apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock);
00092 
00098 APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock);
00099 
00104 APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock);
00105 
00110 APR_POOL_DECLARE_ACCESSOR(thread_rwlock);
00111 
00112 #endif  /* APR_HAS_THREADS */
00113 
00116 #ifdef __cplusplus
00117 }
00118 #endif
00119 
00120 #endif  /* ! APR_THREAD_RWLOCK_H */

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