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

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // @file

    15 // @internalComponent

    16 // 

    17 //

    18 

    19 #ifndef __CCHUNKMANAGER_H_

    20 #define __CCHUNKMANAGER_H_

    21 

    22 #include <e32def.h>

    23 

    24 //Forward declaration

    25 class CChunkAllocator;

    26 class RChunkPool;

    27 class RMemCellList;

    28 class RMemCell;

    29 

    30 class CChunkManager : public CBase

    31 	{

    32 public:

    33 	IMPORT_C static CChunkManager* NewL ( TInt aHeapSize );

    34 	IMPORT_C ~CChunkManager ();

    35 	

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

    37 	

    38 	CChunkAllocator& Allocator ();

    39 	TInt AllocChunk ( RChunkPool& aChunkPool, TInt aNumBlocks );

    40 	RMemCell* Alloc ( TInt aSize );

    41 	void Free ( RMemCell* aPtr );

    42 	

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

    44 	TInt BytesAvailable ();

    45 	

    46 private:

    47 	CChunkManager ( TInt aHeapSize );

    48 	void ConstructL ();	

    49 	void SearchAndAlloc ( RMemCellList& aList, TInt aSize );	

    50 	

    51 private:

    52 	CChunkAllocator* 	iChunkAllocator;

    53 	RArray<RChunkPool> 	iChunkPools;

    54 	RFastLock 			iLock;

    55 	TInt				iHeapSize;

    56 	TInt				iUsedSpace;

    57 	};

    58 

    59 #endif /*__CCHUNKMANAGER_H_*/