Mutex

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/* -*-c++-*- OpenThreads library, Copyright (C) 2002 - 2007  The Open Thread Group
 *
 * This library is open source and may be redistributed and/or modified under
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 *
 * This library 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
 * OpenSceneGraph Public License for more details.
*/
 
 
//
// Mutex - C++ mutex class
// ~~~~~
//
 
#ifndef _OPENTHREADS_MUTEX_
#define _OPENTHREADS_MUTEX_
 
#include <OpenThreads/Exports>
 
namespace OpenThreads {

class OPENTHREAD_EXPORT_DIRECTIVE Mutex {
 
    friend class Condition;
 
public:
 
    enum MutexType
    {
        MUTEX_NORMAL,
        MUTEX_RECURSIVE
    };

    Mutex(MutexType type=MUTEX_NORMAL);

    virtual ~Mutex();
 
 
    MutexType getMutexType() const { return _mutexType; }
 

    virtual int lock();

    virtual int unlock();

    virtual int trylock();
 
private:

    Mutex(const Mutex &/*m*/) {};

    Mutex &operator=(const Mutex &/*m*/) {return *(this);};

    void *_prvData;
    MutexType _mutexType;
 
};
 
}
 
#endif // _OPENTHREADS_MUTEX_