// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "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:

// @file

// @internalComponent

// 

//

#ifndef __CCHUNKMANAGER_H_

#define __CCHUNKMANAGER_H_

#include <e32def.h>

//Forward declaration

class CChunkAllocator;

class RChunkPool;

class RMemCellList;

class RMemCell;

class CChunkManager : public CBase

	{

public:

	IMPORT_C static CChunkManager* NewL ( TInt aHeapSize );

	IMPORT_C ~CChunkManager ();

	IMPORT_C void AddPoolL ( TInt aBlockSize, TInt aNumBlocks, TInt aThresholdValue, TInt aMinGrowth );

	CChunkAllocator& Allocator ();

	TInt AllocChunk ( RChunkPool& aChunkPool, TInt aNumBlocks );

	RMemCell* Alloc ( TInt aSize );

	void Free ( RMemCell* aPtr );

	// returns free space that can be used for CMemChunk after excluding sizeof CMemChunk

	TInt BytesAvailable ();

private:

	CChunkManager ( TInt aHeapSize );

	void ConstructL ();	

	void SearchAndAlloc ( RMemCellList& aList, TInt aSize );	

private:

	CChunkAllocator* 	iChunkAllocator;

	RArray<RChunkPool> 	iChunkPools;

	RFastLock 			iLock;

	TInt				iHeapSize;

	TInt				iUsedSpace;

	};

#endif /*__CCHUNKMANAGER_H_*/