// Copyright (c) 1997-2009 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:

//

#if !defined(__MBufPool_h__)

#define __MBufPool_h__

//

// MBUF POOLS

//

class CMBufMemoryAllocator;

class CMBufManager;

class CMBufPoolChain;

NONSHARABLE_CLASS(CMBufPool) : public CBase

/**

@internalTechnology

*/

	{

private:

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

public:

	~CMBufPool();

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

	void Merge(RMBufQ& aMainPool);

    inline TInt Count() const {return iNumMBufs;}

    inline TInt MBufSize() const {return iMBufSize;}

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

	void operator delete(TAny* aPtr) __NO_THROW;

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

	RMBufQ& MBufQ() {return iList;}

//

private:

	friend class CMBufPoolChain;  // for access to iLink

	TDblQueLink iLink;

	RMBufQ iList;		    // List of mbufs in this pool

	TUint8* iPool;		    // Allocated memory

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

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

//

	CMBufMemoryAllocator& iMemoryAllocator;

public:

	TInt __DbgCheckBuffer(RMBuf* aBuf);

	};

#endif