wefts_xmutex.h

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/*
   wefts_xmutex.h
   Advanced mutex

   $Id: wefts_xmutex.h,v 1.3 2004/03/28 21:45:40 jonnymind Exp $
---------------------------------------------
   Begin      : 2003-08-16 21:07
   Author     : Giancarlo Niccolai

   Last modified because:

*/

/**************************************************************************
*   This program is free software; you can redistribute it and/or modify  *
*   it under the terms of the GNU Library General Public License as       *
*   published by the Free Software Foundation; either version 2.1 of the  *
*   License, or (at your option) any later version.                       *
***************************************************************************/

#ifndef WT_XMUTEX_H
#define WT_XMUTEX_H

#include <wefts_mutex.h>
#include <wefts_cond.h>
#include <wefts_cleanup.h>


namespace Wefts {

class XMutex: public CleanupHandler {
private:
   Condition m_cond;
   Mutex m_mutex;
   int m_locked;
   int m_waiting;
   OSThread m_owner;

public:
   XMutex();

   void lock();

   bool lock( double seconds );

   bool tryLock();

   void unlock();

   bool own() { return m_owner.same(); }

   bool locked() { return m_locked > 0; }

   void handleCleanup( int, void *caller = 0 );
};

}

#endif

/* end of wefts_xmutex.h  */

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