/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */

#ifndef _LOG4CXX_HELPERS_SYNCHRONIZED_H
#define _LOG4CXX_HELPERS_SYNCHRONIZED_H
#include <log4cxx/log4cxx.h>

extern "C" {
    typedef struct apr_thread_mutex_t apr_thread_mutex_t;
}

namespace log4cxx
{
        namespace helpers {
                class Mutex;

                /** utility class for objects multi-thread synchronization.*/
                class LOG4CXX_EXPORT synchronized
                {
                public:
                synchronized(const Mutex& mutex);
                synchronized(apr_thread_mutex_t* mutex);
                ~synchronized();


                private:
                void* mutex;
                //  prevent use of copy and assignment
                synchronized(const synchronized&);
                synchronized& operator=(const synchronized&);
                };
        }
}

#if defined(RW_MUTEX)

namespace log4cxx
{
        namespace helpers {
                class RWMutex;

                // utility class for objects multi-thread synchronization.
                class LOG4CXX_EXPORT synchronized_read
                {
                public:
                synchronized_read(const RWMutex& mutex);
                ~synchronized_read();


                private:
                const RWMutex & mutex;
                //  prevent use of copy and assignment
                synchronized_read(const synchronized_read&);
                synchronized_read& operator=(const synchronized_read&);
                };
        }
}

namespace log4cxx
{
        namespace helpers {
                class RWMutex;

                // utility class for objects multi-thread synchronization.
                class LOG4CXX_EXPORT synchronized_write
                {
                public:
                synchronized_write(const RWMutex& mutex);
                ~synchronized_write();


                private:
                const RWMutex & mutex;
                //  prevent use of copy and assignment
                synchronized_write(const synchronized_write&);
                synchronized_write& operator=(const synchronized_write&);
                };
        }
}

#define LOCK_R synchronized_read
#define LOCK_W synchronized_write

#else

#define LOCK_R synchronized
#define LOCK_W synchronized

#endif // RW_MUTEX

#endif //_LOG4CXX_HELPERS_SYNCHRONIZED_H