author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 01:12:20 +0200 | |
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// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// @file |
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// @internalComponent |
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// |
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// |
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#ifndef __CMEMCHUNK_ |
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#define __CMEMCHUNK_ |
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#include "rmemcell.h" |
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class RMemCellList |
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{ |
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public: |
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RMemCellList () |
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{ |
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Init (); |
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} |
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RMemCellList ( RMemCell* aFirst, RMemCell* aLast ) |
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: iNext ( aFirst ), iLast ( aLast ) |
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{ |
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} |
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void Append ( RMemCell* aPtr ); |
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void Append ( RMemCellList& aList ); |
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TInt Transfer ( RMemCellList& aList, TInt aSize ); |
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void Init () |
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{ |
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iNext = iLast = NULL; |
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} |
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TBool IsEmpty () |
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{ |
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return ( iNext == NULL ) ? ETrue : EFalse; |
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} |
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RMemCell* First () |
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{ |
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return iNext; |
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} |
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RMemCell* Last () |
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{ |
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return iLast; |
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} |
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private: |
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RMemCell* iNext; |
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RMemCell* iLast; |
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}; |
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class CMemChunk : public CBase |
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{ |
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public: |
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static CMemChunk* New ( CChunkAllocator& aAllocator, RChunkPool& aChunkPool, TInt aNumBlocks , TInt aBlockSize ); |
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~CMemChunk (); |
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RMemCellList& List () |
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{ |
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return iQueue; |
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} |
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TInt NumBlocks () |
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{ |
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return iNumBlocks; |
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} |
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private: |
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CMemChunk ( CChunkAllocator& aAllocator, TInt aNumBlocks ); |
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TAny* operator new (TUint aNumBlocks, TInt aExtra, CChunkAllocator& aAllocator ); |
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void operator delete ( TAny* aPtr, TInt aExtra, CChunkAllocator& aAllocator ); |
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void CMemChunk::operator delete ( TAny* aPtr ); |
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private: |
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RMemCellList iQueue; |
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CChunkAllocator& iChunkAllocator; |
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TUint iNumBlocks; |
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}; |
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#endif /*__CMEMCHUNK_*/ |