107 lines
2.8 KiB
C++
107 lines
2.8 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: shareablemutex.hxx,v $
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*
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* $Revision: 1.5 $
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*
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* last change: $Author: rt $ $Date: 2005-09-09 00:19:11 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#ifndef __FRAMEWORK_HELPER_SHAREABLEMUTEX_HXX_
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#define __FRAMEWORK_HELPER_SHAREABLEMUTEX_HXX_
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#ifndef _OSL_INTERLOCK_H_
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#include <osl/interlck.h>
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#endif
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#ifndef _OSL_MUTEX_HXX_
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#include <osl/mutex.hxx>
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#endif
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namespace framework
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{
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class ShareableMutex
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{
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public:
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ShareableMutex();
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ShareableMutex( const ShareableMutex& rShareableMutex );
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const ShareableMutex& operator=( const ShareableMutex& rShareableMutex );
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~ShareableMutex();
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void acquire();
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void release();
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::osl::Mutex& getShareableOslMutex();
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private:
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struct MutexRef
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{
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MutexRef() : m_refCount(0) {}
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void acquire()
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{
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osl_incrementInterlockedCount( &m_refCount );
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}
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void release()
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{
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if ( osl_decrementInterlockedCount( &m_refCount ) == 0 )
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delete this;
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}
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oslInterlockedCount m_refCount;
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osl::Mutex m_oslMutex;
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};
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MutexRef* pMutexRef;
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};
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class ShareGuard
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{
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public:
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ShareGuard( ShareableMutex& rShareMutex ) :
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m_rShareMutex( rShareMutex )
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{
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m_rShareMutex.acquire();
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}
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~ShareGuard()
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{
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m_rShareMutex.release();
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}
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private:
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ShareGuard();
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ShareGuard& operator=( const ShareGuard& );
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ShareableMutex& m_rShareMutex;
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};
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}
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#endif // #ifndef __FRAMEWORK_HELPER_SHAREABLEMUTEX_HXX_
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