MNMutex.h

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/* Copyright (C) 2000 KOM/Darmstadt University of Technology
 *
 * You are allowed to use all other parts of the code under the following terms:
 *
 * For non-commercial use, code may be used in unmodified form provided
 * that this copyright notice and this permission notice appear in
 * supporting documentation.
 *
 * This software is provided "as is" and without any express or implied
 * warranties, including, without limitation, the implied warranty of
 * fitness for a particular purpose.
 *
 * The code may be subjected to the GNU General Public License, Version 2,
 * and re-distributed under the terms of this license.
 * As a special exception, permission is granted to link this code
 * with the Qt library and distribute executables, as long as you
 * follow the requirements of the GNU GPL in regard to all of the
 * software in the executable aside from Qt.
 *
 * Commercial use other than under the terms of the GNU General Public
 * License is allowed only after express negotiation of conditions
 * with the authors.
 */
#ifndef MN_OSS_MUTEX_H
#define MN_OSS_MUTEX_H

#include <config.h>

#include "mnthread.h"
#include "MNValid.h"

class MNDebugMutex
{
    DECLARE_VALID

private:
    mnthread_t           lock_holder;

protected:
    friend class MNSem;
    mnthread_mutex_t     lck;

private:
    mnthread_mutexattr_t _attr;

public:
    MNDebugMutex( );

    ~MNDebugMutex( );

    void lock( );

    void unlock( );
};

class MNMutex
{
    DECLARE_VALID

protected:
    friend class MNSem;
    mnthread_mutex_t lck;

private:
    mnthread_mutexattr_t _attr;

public:
    MNMutex( );

    ~MNMutex( );

    void lock( );

    void unlock( );
};

class Autolock
{
    MNDebugMutex& _mx;
public:
    Autolock( MNDebugMutex& mx )
        : _mx( mx )
    {
        _mx.lock();
    }
    ~Autolock( )
    {
        _mx.unlock();
    }
private:
    Autolock( const Autolock& );
    Autolock& operator=( const Autolock& );
};

#endif /* MN_OSS_MUTEX_H */

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