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apr_arch_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 THREAD_RWLOCK_H
00018 #define THREAD_RWLOCK_H
00019 
00020 #include <kernel/OS.h>
00021 #include "apr_pools.h"
00022 #include "apr_thread_rwlock.h"
00023 #include "apr_file_io.h"
00024 #include "apr_general.h"
00025 #include "apr_lib.h"
00026 #include "apr_portable.h"
00027 
00028 struct apr_thread_rwlock_t {
00029     apr_pool_t *pool;
00030 
00031     /* Our lock :) */
00032     sem_id Lock;
00033     int32  LockCount;
00034     /* Read/Write lock stuff */
00035     sem_id Read;
00036     int32  ReadCount;
00037     sem_id Write;
00038     int32  WriteCount;
00039     int32  Nested;
00040 
00041     thread_id writer;
00042 };
00043 
00044 #endif  /* THREAD_RWLOCK_H */
00045