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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: shareablemutex.hxx,v $
*
* $Revision: 1.5 $
*
* last change: $Author: rt $ $Date: 2005-09-09 00:19:11 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* 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 GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
#ifndef __FRAMEWORK_HELPER_SHAREABLEMUTEX_HXX_
#define __FRAMEWORK_HELPER_SHAREABLEMUTEX_HXX_
#ifndef _OSL_INTERLOCK_H_
#include <osl/interlck.h>
#endif
#ifndef _OSL_MUTEX_HXX_
#include <osl/mutex.hxx>
#endif
namespace framework
{
class ShareableMutex
{
public:
ShareableMutex();
ShareableMutex( const ShareableMutex& rShareableMutex );
const ShareableMutex& operator=( const ShareableMutex& rShareableMutex );
~ShareableMutex();
void acquire();
void release();
::osl::Mutex& getShareableOslMutex();
private:
struct MutexRef
{
MutexRef() : m_refCount(0) {}
void acquire()
{
osl_incrementInterlockedCount( &m_refCount );
}
void release()
{
if ( osl_decrementInterlockedCount( &m_refCount ) == 0 )
delete this;
}
oslInterlockedCount m_refCount;
osl::Mutex m_oslMutex;
};
MutexRef* pMutexRef;
};
class ShareGuard
{
public:
ShareGuard( ShareableMutex& rShareMutex ) :
m_rShareMutex( rShareMutex )
{
m_rShareMutex.acquire();
}
~ShareGuard()
{
m_rShareMutex.release();
}
private:
ShareGuard();
ShareGuard& operator=( const ShareGuard& );
ShareableMutex& m_rShareMutex;
};
}
#endif // #ifndef __FRAMEWORK_HELPER_SHAREABLEMUTEX_HXX_
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