// Copyright (c) 2005-2009 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:

//

/**

 @file

 @internalTechnology

*/

#ifndef AVCTPRECEIVER_H

#define AVCTPRECEIVER_H

#include <e32base.h>

#include <es_sock.h>

#include <avctpservices.h>

#include "avctppacketstatics.h"

// forward declaration

class CAvctpBody;

class MControlChannelNotify;

/**

AVCTP active receiver

@internalComponent

*/

NONSHARABLE_CLASS(CAvctpReceiver) : public CActive

	{

public:

	static CAvctpReceiver* NewL(MAvctpEventNotify& aNotify, RSocket& aAvctpSocket, SymbianAvctp::TPid aPid);

	static CAvctpReceiver* NewLC(MAvctpEventNotify& aNotify, RSocket& aAvctpSocket, SymbianAvctp::TPid aPid);

	~CAvctpReceiver();

private:

	MAvctpEventNotify& iNotify;

	RSocket& iAvctpSocket;

	enum TRecvState

		{

		EWaitingForPktHeader,

		EWaitingForMsgInfo,

		};

	TRecvState iRecvState;

	HBufC8* iRecvBuf;

	TPtr8  iRecvPtr;

	TSockXfrLength iXfrLength;

	SymbianAvctp::TPid iPid;

	// Current packet info

	TSockAddr iAddr;

	SymbianAvctp::TTransactionLabel iTransactionLabel;

	SymbianAvctp::TMessageType iMessageType;

	TBool iIpidBitSet;

private:

	CAvctpReceiver(MAvctpEventNotify& aNotify, RSocket& aAvctpSocket, SymbianAvctp::TPid aPid);

	void ConstructL();

	inline void NotifyMessageReceived(const TBTDevAddr& aBTDevice,

								SymbianAvctp::TTransactionLabel aTransactionLabel,

								SymbianAvctp::TMessageType aType,

								TBool aIpidBitSet,

							 	const TDesC8& aMessageInformation);

	// Function that issues RecvFrom 

	void ReceiveL(TRecvState aNextState, TInt aBufLen = SymbianAvctp::ENormalHeaderLength);

	// From CActive

	void DoCancel();

	void RunL();

	TInt RunError(TInt aError);

    // Other

    void ChangeState(TRecvState aNextState);

    void SetPacketInfo(TDes8& aHeader);

	};

#endif // AVCTPRECEIVER_H