// Copyright (c) 2008-2009 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:

//

#ifndef __CCONTROLCHANNELBASE_H_

#define __CCONTROLCHANNELBASE_H_

#include <e32base.h>

class TControlMessage;

/**

 This class acts as a base class which technology specific control channel need to implement

 @publishedPartner

 @prototype

 */

NONSHARABLE_CLASS (CControlChannelBase) : public CBase

	{

protected:

	CControlChannelBase();

public:

	~CControlChannelBase();

public:

	/*

      Recv is used for receiving the data through control channel.

	  @param aMessage msg wrapped as TControlMessage 

      @param aStatus request status

     */  

	virtual void Recv ( TControlMessage& aMessage, TRequestStatus& aStatus ) = 0;

	 /*

      Send is used for sending the data through control channel.

	  @param aMessage msg wrapped as TControlMessage 

      @param aStatus request status

     */  

	virtual void Send ( TControlMessage& aMessage, TRequestStatus& aStatus ) = 0;

      /*

       Cancels the asynchronous recv used for receiving the data through control channel.

	  */  

	virtual void CancelRecv () = 0;

	  /*

       Cancels the asynchronous send used for sending the data through control channel.

	  */  

	virtual void CancelSend () = 0;

	};

inline CControlChannelBase::CControlChannelBase()	

	{

	}

inline CControlChannelBase::~CControlChannelBase()

	{

	}	

#endif //__CCONTROLCHANNELBASE_H__