1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir 29*cdf0e10cSrcweir #ifndef _SYNCOBJECTS_HXX_ 30*cdf0e10cSrcweir #define _SYNCOBJECTS_HXX_ 31*cdf0e10cSrcweir 32*cdf0e10cSrcweir //------------------------------------------------------------------------ 33*cdf0e10cSrcweir // includes 34*cdf0e10cSrcweir //------------------------------------------------------------------------ 35*cdf0e10cSrcweir 36*cdf0e10cSrcweir #include <windows.h> 37*cdf0e10cSrcweir 38*cdf0e10cSrcweir //------------------------------------------------------------------------ 39*cdf0e10cSrcweir // a simple helper template for automatic locking/unlocking 40*cdf0e10cSrcweir //------------------------------------------------------------------------ 41*cdf0e10cSrcweir 42*cdf0e10cSrcweir template< class LOCK > 43*cdf0e10cSrcweir class CLockGuard 44*cdf0e10cSrcweir { 45*cdf0e10cSrcweir public: 46*cdf0e10cSrcweir CLockGuard( LOCK* aLock ) : 47*cdf0e10cSrcweir m_pLock( aLock ) 48*cdf0e10cSrcweir { 49*cdf0e10cSrcweir m_pLock->Lock( ); 50*cdf0e10cSrcweir } 51*cdf0e10cSrcweir 52*cdf0e10cSrcweir ~CLockGuard( ) 53*cdf0e10cSrcweir { 54*cdf0e10cSrcweir m_pLock->Unlock( ); 55*cdf0e10cSrcweir } 56*cdf0e10cSrcweir 57*cdf0e10cSrcweir private: 58*cdf0e10cSrcweir LOCK* m_pLock; 59*cdf0e10cSrcweir }; 60*cdf0e10cSrcweir 61*cdf0e10cSrcweir //------------------------------------------------------------------------ 62*cdf0e10cSrcweir // a interface base class for different locking sub classes 63*cdf0e10cSrcweir //------------------------------------------------------------------------ 64*cdf0e10cSrcweir 65*cdf0e10cSrcweir class CSyncObject 66*cdf0e10cSrcweir { 67*cdf0e10cSrcweir public: 68*cdf0e10cSrcweir virtual ~CSyncObject( ) = 0; 69*cdf0e10cSrcweir 70*cdf0e10cSrcweir virtual int Lock( ) = 0; 71*cdf0e10cSrcweir virtual int Unlock( ) = 0; 72*cdf0e10cSrcweir }; 73*cdf0e10cSrcweir 74*cdf0e10cSrcweir //------------------------------------------------------------------------ 75*cdf0e10cSrcweir // if no synchronization is necessary this class will be used 76*cdf0e10cSrcweir // declaring the functions as inline safes runtime overhead 77*cdf0e10cSrcweir //------------------------------------------------------------------------ 78*cdf0e10cSrcweir 79*cdf0e10cSrcweir class CNullLock 80*cdf0e10cSrcweir { 81*cdf0e10cSrcweir public: 82*cdf0e10cSrcweir inline virtual ~CNullLock ( ) {}; 83*cdf0e10cSrcweir inline virtual int Lock( ) {}; 84*cdf0e10cSrcweir inline virtual int Unlock() {}; 85*cdf0e10cSrcweir }; 86*cdf0e10cSrcweir 87*cdf0e10cSrcweir //------------------------------------------------------------------------ 88*cdf0e10cSrcweir // a minimal wrapper for a win32 critical section 89*cdf0e10cSrcweir //------------------------------------------------------------------------ 90*cdf0e10cSrcweir 91*cdf0e10cSrcweir class CCriticalSection : public CSyncObject 92*cdf0e10cSrcweir { 93*cdf0e10cSrcweir public: 94*cdf0e10cSrcweir CCriticalSection( ); 95*cdf0e10cSrcweir virtual ~CCriticalSection( ); 96*cdf0e10cSrcweir 97*cdf0e10cSrcweir // both functions return always 0 98*cdf0e10cSrcweir // because the win32 critsec functions 99*cdf0e10cSrcweir // don't return any return code 100*cdf0e10cSrcweir virtual int Lock( ); 101*cdf0e10cSrcweir virtual int Unlock( ); 102*cdf0e10cSrcweir 103*cdf0e10cSrcweir private: 104*cdf0e10cSrcweir CRITICAL_SECTION m_critSec; 105*cdf0e10cSrcweir }; 106*cdf0e10cSrcweir 107*cdf0e10cSrcweir 108*cdf0e10cSrcweir typedef CLockGuard< CSyncObject > SyncObjLockGuard_t; 109*cdf0e10cSrcweir 110*cdf0e10cSrcweir #endif 111