office-gobmx/framework/inc/helper/shareablemutex.hxx

96 lines
2.6 KiB
C++

/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
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*
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*
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
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#ifndef __FRAMEWORK_HELPER_SHAREABLEMUTEX_HXX_
#define __FRAMEWORK_HELPER_SHAREABLEMUTEX_HXX_
#include <osl/interlck.h>
#include <osl/mutex.hxx>
#include <fwidllapi.h>
namespace framework
{
class FWI_DLLPUBLIC 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_