/*

* 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__