// 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:

// This file defines the base class for the protocol interface classes.

// 

//

/**

 @file

*/

#ifndef BINDERBASE_H__

#define BINDERBASE_H__

#include <comms-infras/nifif.h>

#include <comms-infras/commsbufchain.h>

#include <es_mbuf.h>

#include <comms-infras/ss_flowbinders.h>

#include <comms-infras/linkprovision.h>

#include "Constants.h"

#include <comms-infras/es_protbinder.h>

#include <networking/bca2.h>

class CRawIP2Flow;

class CBinderBase : public CBase, public ESock::MLowerDataSender, public ESock::MLowerControl,

						BasebandChannelAdaptation2::MUpperControl, BasebandChannelAdaptation2::MUpperDataReceiver

	{

public:

	friend class CRawIP2Flow;

	virtual ~CBinderBase();

public:

	// from ESock::MLowerControl

	virtual TInt BlockFlow(ESock::MLowerControl::TBlockOption aOption);

	virtual void ChangeFlow(CRawIP2Flow& aNewFlow);

	//

	// Utility calls from Flow during binding

	//

	ESock::MLowerDataSender* Bind(ESock::MUpperDataReceiver* aUpperReceiver, ESock::MUpperControl* aUpperControl);

	void Unbind(ESock::MUpperDataReceiver* aUpperReceiver, ESock::MUpperControl* aUpperControl);

	// from BasebandChannelAdaptation2::MUpperControl

	virtual void StartSending();

	virtual void Error(TInt aErr);

	virtual void SetProvision(const CIPConfig& aProvision) = 0;

public:

	virtual void UpdateContextConfigL(const TPacketDataConfigBase& aConfig);

	virtual void UpdateConnectionSpeed(TUint aConnectionSpeed);

	virtual TBool WantsProtocol(TUint16 aProtocolCode)=0;

	//from ESock::MUpperDataReceiver

	virtual void Process(RMBufChain& aPdu) = 0;

	virtual ESock::MLowerDataSender::TSendResult Send(RMBufChain& aPdu) = 0; 

	//from BasebandChannelAdaptation2::MUpperDataReceiver

	virtual void Process(RCommsBufChain& aPdu) = 0; 

#ifdef RAWIP_HEADER_APPENDED_TO_PACKETS

	void SetType(TUint16 aType); 

#endif

	void SetSender(BasebandChannelAdaptation2::MLowerDataSender* aLowerDataSender);

public:

	inline CRawIP2Flow& GetFlow();

protected:

	CRawIP2Flow* iFlow; // not owned

	ESock::MUpperControl* iUpperControl;  // not owned

	ESock::MUpperDataReceiver* iUpperReceiver;  // not owned

	BasebandChannelAdaptation2::MLowerDataSender* iLowerDataSender; // not owned

#ifdef RAWIP_HEADER_APPENDED_TO_PACKETS

	CIPTagHeader* iIPTagHeader; // owned

#endif // RAWIP_HEADER_APPENDED_TO_PACKETS

	TBool iStarted:1; 

	};

CRawIP2Flow& CBinderBase::GetFlow()

/**

 * Returns to reference to RawIPFlow2

 *

 * @return reference to CRawIPFlow2 class

 */

	{

	ASSERT(iFlow);

	return *iFlow;

	}

#endif