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wefts_xmutex.h

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00001 /*
00002    wefts_xmutex.h
00003    Advanced mutex
00004 
00005    $Id: wefts_xmutex.h,v 1.2 2004/03/08 20:28:53 jonnymind Exp $
00006 ---------------------------------------------
00007    Begin      : 2003-08-16 21:07
00008    Author     : Giancarlo Niccolai
00009 
00010    Last modified because:
00011 
00012 */
00013 
00014 /**************************************************************************
00015 *   This program is free software; you can redistribute it and/or modify  *
00016 *   it under the terms of the GNU Library General Public License as       *
00017 *   published by the Free Software Foundation; either version 2.1 of the  *
00018 *   License, or (at your option) any later version.                       *
00019 ***************************************************************************/
00020 
00021 #ifndef WT_XMUTEX_H
00022 #define WT_XMUTEX_H
00023 
00024 #include <wefts_mutex.h>
00025 #include <wefts_cond.h>
00026 #include <wefts_cleanup.h>
00027 
00028 
00029 namespace Wefts {
00030 
00064 class XMutex: public CleanupHandler {
00065 private:
00066    Condition m_cond;
00067    Mutex m_mutex;
00068    int m_locked;
00069    int m_waiting;
00070    OSThread m_owner;
00071 
00072 public:
00074    XMutex();
00075 
00084    void lock();
00085 
00090    bool lock( double seconds );
00091 
00095    bool tryLock();
00096 
00101    void unlock();
00102 
00104    bool own() { return m_owner.same(); }
00105 
00111    bool locked() { return m_locked > 0; }
00112 
00114    void handleCleanup( int, void *caller = 0 );
00115 };
00116 
00117 }
00118 
00119 #endif
00120 
00121 /* end of wefts_xmutex.h  */

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