/*
* Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
* Note: This file may contain code to generate corrupt files for test purposes.
* Such code is excluded from production builds by use of compiler defines;
* it is recommended that such code should be removed if this code is ever published publicly.
* counter for smart ponters. See CElement.
*
*/
/**
@file
@internalComponent
@released
*/
#ifndef __SHAREDCOUNT_H__
#define __SHAREDCOUNT_H__
#include <functional>
#include "actualcounterbase.h"
class CSharedCount
{
friend inline bool operator == (CSharedCount const& aLeft, CSharedCount const& aRight);
friend inline bool operator < (CSharedCount const& aLeft, CSharedCount const& aRight);
private:
CCounterBase* iBase;
public:
CSharedCount ();
CSharedCount (CSharedCount const& aInitialiser);
~CSharedCount ();
template <class P> CSharedCount (P aP) : iBase (0)
{
iBase = new CActualCounterBase <P> (aP);
}
CSharedCount & operator = (CSharedCount const& aInitialiser);
void swap (CSharedCount & asc);
long UseCount () const;
};
inline CSharedCount::CSharedCount () :
iBase (0)
{
}
inline CSharedCount::~CSharedCount ()
{
if (iBase != NULL)
{
iBase -> Release ();
}
}
inline CSharedCount::CSharedCount (CSharedCount const& aInitialiser) :
iBase (aInitialiser.iBase)
{
if (iBase != NULL)
{
iBase -> AddRef ();
}
}
inline long CSharedCount::UseCount () const
{
return (iBase != NULL) ? iBase -> UseCount (): 0;
}
inline bool operator == (CSharedCount const& aLeft, CSharedCount const& aRight)
{
return aLeft.iBase == aRight.iBase;
}
inline bool operator < (CSharedCount const& aLeft, CSharedCount const& aRight)
{
return std::less <CCounterBase*> () (aLeft.iBase, aRight.iBase);
}
#endif // __SHAREDCOUNT_H__