// 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(__MBufPktQ_h__)

#define __MBufPktQ_h__

class RMBufPktQ

/**

MBUF PACKET QUEUE

@publishedPartner

@released

*/

	{

	__DECLARE_CLEANUP

public:

	inline TBool IsEmpty() const;

	inline const RMBufChain& First() const;

	inline const RMBufChain& Last() const;

	IMPORT_C void Init();

	IMPORT_C void Assign(RMBufPktQ& aQueue);

	IMPORT_C void Free();

	IMPORT_C TBool Remove(RMBufChain& aChain);

	IMPORT_C void Append(RMBufChain& aChain);

	IMPORT_C void Append(RMBufPktQ& aQueue);

	IMPORT_C void Prepend(RMBufChain& aChain);

private:

	friend class TMBufPktQIter;

	void Insert(RMBufChain& aNew, RMBufChain& aPrev);

	void Remove(RMBufChain& aNew, RMBufChain& aPrev);

	//

protected:

	RMBufChain iNext;

	RMBufChain iLast;

	};

class TMBufPktQIter

/**

MBUF PACKET QUEUE ITERATOR

@publishedPartner

@released

*/

	{

public:

	inline TMBufPktQIter(RMBufPktQ& aQueue);

	inline void Set(RMBufPktQ& aQueue);

	inline void SetToFirst();

	inline TBool More() const;

	inline const RMBufChain& Current() const;

	IMPORT_C const RMBufChain& operator++(TInt);

	IMPORT_C void Insert(RMBufChain& aNewChain);

	IMPORT_C void Remove(RMBufChain& aNewChain);

	IMPORT_C void TidyAfterUpdate();

	//

protected:

	// Must be regarded as a const chain, hence the const API

	RMBufChain iPrev;

	RMBufPktQ* iQueue;

	RMBufChain iCurrent;

	};

#endif

#if !defined(__MBufPktQ_Ignore_Inlines__)

#include <comms-infras/mbufpktq.inl>

#endif // __MBufPktQ_Ignore_Inlines__