// Copyright (c) 2006-2009 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

 @internalComponent

*/

#ifndef LINKESTABLISHMENT_H

#define LINKESTABLISHMENT_H

#include <e32base.h>

class CDelay;

class CHCTLBcsp;

class TLinkState;

class CLinkStateFactory;

NONSHARABLE_CLASS(CLinkEstablishment) :public CBase

/**

CLinkEstablishment

Provides the initial link establishment entity

Owns

	CLinkStateFactory (State Pattern)

This class is not intended for derivation.

*/

	{

public:

	void QueueReadForNextFrame(void);

	static CLinkEstablishment* NewL(CHCTLBcsp& aHCTLbcsp);

	~CLinkEstablishment();

	void ProcessLinkMsg(const TDesC8& aLinkMsg);

	void SendLinkMsg(const TDesC8& aLinkMsg);

	void SetState(const TLinkState& aLinkState);   //<Change state of device

	//TLinkState Stub Functions

	void HandleLinkMsgSync();

	void HandleLinkMsgSyncResp();

	void HandleLinkMsgConf();

	void HandleLinkMsgConfResp();

	void StartShyTimer();

	void StartConfTimer();

	void StopShyTimer();

	void StopConfTimer();

	void Choke();

	void UnChoke();

 	void HandlePeerReset();

 	void Reset();	

	TBool Muzzled();

	void ResetMuzzled();

private:

	CLinkEstablishment(CHCTLBcsp& aHCTLbcsp);

    void ConstructL();	

	void ProcessConfResp();

	void ProcessSyncResp();

	void LinkStateMachine(const TDesC8& aLinkMsg);	//processes received link messages

	void HandleConfTimeout();

	void HandleShyTimeout();

	static TInt ConfTimeout(TAny* aLink);

	static TInt ShyTimeout(TAny* aLink);

private:

	enum TBcspLinkStateTransition

		{

		ESyncRecvd,

		EConfRecvd

		};

	CHCTLBcsp& iHctlBcsp;

	CLinkStateFactory* iLinkStateFactory;

	const TLinkState* iLinkState;

	CDelay* iShyTimer;

	CDelay* iConfTimer;

	TInt iConfCnt;

	};

 #endif //LINKESTABLISHMENT_H