// Copyright (c) 2004-2009 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:

// FlowControlChange.cpp

// Class that listens for requests to change flow control in packet loopback

// 

//

/**

 @file

*/

#ifndef __FLOW_CONTROL_CHANGE__

#define __FLOW_CONTROL_CHANGE__

#include <e32base.h>

#include <e32property.h>

class MFlowControlChangeCallBack

	{

	public:

	/** This method is called when flow control is started */

	virtual void StartFlowControl() = 0;

	/** This method is called when flow control is stopped */

	virtual void StopFlowControl() = 0;

	};

NONSHARABLE_CLASS(CFlowControlChange) : public CActive

	{

public:

	static CFlowControlChange* NewL(TUint aUnit, MFlowControlChangeCallBack* aCallback);

	~CFlowControlChange();

	TBool FlowControlIsOn() const;

private:

	CFlowControlChange(TUint aUnit, MFlowControlChangeCallBack* aCallback);

	void RunL();

	void DoCancel();

    /** Class with implementation of MFlowControlChangeCallBack::StartFlowControl that is called when the flow control is changed */

	MFlowControlChangeCallBack *iCallback;

	/** The property to listen on for changes to flow control */

	RProperty iProperty;

	/** The port to listen on for changes to flow control */

	TUint iUnit;

	/** True if flow control is on */

	TBool iFlowControlIsOn;

	};

#endif