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/***************************************************************************

 *   Copyright (C) December 20, 2008 by Mattias Runge                             *

 *   mattias@runge.se                                                      *

 *   threadsafequeue.h                                            *

 *                                                                         *

 *   This program is free software; you can redistribute it and/or modify  *

 *   it under the terms of the GNU General Public License as published by  *

 *   the Free Software Foundation; either version 2 of the License, or     *

 *   (at your option) any later version.                                   *

 *                                                                         *

 *   This program is distributed in the hope that it will be useful,       *

 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *

 *   GNU General Public License for more details.                          *

 *                                                                         *

 *   You should have received a copy of the GNU General Public License     *

 *   along with this program; if not, write to the                         *

 *   Free Software Foundation, Inc.,                                       *

 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *

 ***************************************************************************/

#ifndef _THREADSAFEQUEUE_H

#define _THREADSAFEQUEUE_H

using namespace std;

#include <queue>

#include "mutex.h"

template <class T>

class ThreadSafeQueue

{

public:

    ThreadSafeQueue() {};

    ~ThreadSafeQueue() {};

    void push(T item)

    {

        myMutex.lock();

        myQueue.push(item);

        myMutex.unlock();

    }

    T pop()

    {

        myMutex.lock();

        T item = myQueue.front();

        myQueue.pop();

        myMutex.unlock();

        return item;

    }

    int size()

    {

        myMutex.lock();

        int size = myQueue.size();

        myMutex.unlock();

        return size;

    }

private:

    queue<T> myQueue;

    Mutex myMutex;

};

#endif  /* _THREADSAFEQUEUE_H */