1 // Copyright (c) 1997-2009 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 //

    15 

    16 #if !defined(__MBufPool_h__)

    17 #define __MBufPool_h__

    18 

    19 //

    20 // MBUF POOLS

    21 //

    22 

    23 class CMBufMemoryAllocator;

    24 class CMBufManager;

    25 class CMBufPoolChain;

    26 

    27 NONSHARABLE_CLASS(CMBufPool) : public CBase

    28 /**

    29 @internalTechnology

    30 */

    31 	{

    32 private:

    33 	CMBufPool(TInt aMBufSize, TInt aNumMBufs, CMBufMemoryAllocator& aMemoryAllocator);

    34 public:

    35 	~CMBufPool();

    36 	static CMBufPool* New(TInt aMBufSize, TInt aNumMBufs, CMBufPoolChain& aMBufPoolChain, CMBufMemoryAllocator& aMemoryAllocator);

    37 

    38 	void Merge(RMBufQ& aMainPool);

    39     inline TInt Count() const {return iNumMBufs;}

    40     inline TInt MBufSize() const {return iMBufSize;}

    41     

    42     TAny *operator new(TUint aSize, TInt aExtra, CMBufMemoryAllocator& aMemoryAllocator) __NO_THROW;

    43     

    44 	void operator delete(TAny* aPtr) __NO_THROW;

    45 	void operator delete(TAny* aPtr, TInt aExtra, CMBufMemoryAllocator& aMemoryAllocator) __NO_THROW;

    46 	RMBufQ& MBufQ() {return iList;}

    47 //

    48 private:

    49 	friend class CMBufPoolChain;  // for access to iLink

    50 	

    51 	TDblQueLink iLink;

    52 	RMBufQ iList;		    // List of mbufs in this pool

    53 	TUint8* iPool;		    // Allocated memory

    54 	const TInt iNumMBufs;   // Number of mbufs in this pool

    55     const TInt iMBufSize;   // size of the mbufs held within this pool

    56 //

    57 	CMBufMemoryAllocator& iMemoryAllocator;

    58     

    59 public:

    60 	TInt __DbgCheckBuffer(RMBuf* aBuf);

    61 	};

    62 

    63 #endif