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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: refernce.hxx,v $
* $Revision: 1.4 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _VOS_REFERNCE_HXX_
#define _VOS_REFERNCE_HXX_
# include <vos/types.hxx>
# include <osl/interlck.h>
# include <vos/object.hxx>
namespace vos
{
/** Interface for refernce-counting
*/
class IReference
{
public:
IReference() { }
virtual ~IReference() { }
typedef oslInterlockedCount RefCount;
virtual RefCount SAL_CALL acquire()=0;
virtual RefCount SAL_CALL release()=0;
virtual RefCount SAL_CALL referenced() const=0;
};
class ORefCount
{
public:
typedef IReference::RefCount RefCount;
ORefCount() { m_RefCount = 0; }
ORefCount(RefCount n) { m_RefCount = n; }
virtual ~ORefCount();
RefCount SAL_CALL acquire() { return (osl_incrementInterlockedCount(&m_RefCount)); };
RefCount SAL_CALL release() { return (osl_decrementInterlockedCount(&m_RefCount)); };
RefCount SAL_CALL operator++() { return acquire(); }
// don't implement the postfix operator, it won't function this way!
RefCount SAL_CALL operator--() { return release(); }
// don't implement the postfix operator, it won't function this way!
RefCount SAL_CALL referenced() const
{ return (m_RefCount); }
protected:
RefCount m_RefCount;
private:
// disable copy/assignment
ORefCount(const ORefCount&);
ORefCount& SAL_CALL operator= (const ORefCount&);
};
class OReference : public NAMESPACE_VOS(IReference)
{
public:
OReference();
virtual ~OReference();
virtual RefCount SAL_CALL acquire();
virtual RefCount SAL_CALL release();
virtual RefCount SAL_CALL referenced() const
{ return (m_RefCount.referenced()); }
protected:
ORefCount m_RefCount;
private:
// disable copy/assignment
OReference(const OReference&);
OReference& SAL_CALL operator= (const OReference&);
};
}
#endif // _VOS_REFERNCE_HXX_
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