// Copyright (c) 1997-2009 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:

// Defines support for the v1.5 PRT interface. Formerly this was implemented as a separate

// provider class but in Jetstream this can all be done in CServProviderBase.

// 

//

/**

 @file

 @internalComponent  

*/

#ifndef __ES_MBUFIF_H

#define __ES_MBUFIF_H

#include <es_mbuf.h>

namespace ESock

{

class MSessionDataNotify;

NONSHARABLE_CLASS(CWaitForMBufs) : public CActive

    {

public:

	enum TAllocationSignal { ECanSend, ENewData } ;

	// construct/destruct

	static CWaitForMBufs* NewL(MSessionDataNotify* aSocket);

	~CWaitForMBufs();

	// requests

	void AllocWaitAndSignalNewData(TUint aSize);

	void AllocWaitAndSignalCanSend(TUint aSize);

	// cancel the requests

	void CancelNewData();

	void CancelCanSend();

private:

	// construct/destruct

	CWaitForMBufs(MSessionDataNotify* aSocket);

	void ConstructL();

	// from CActive

    void RunL();

	void DoCancel();

    MSessionDataNotify* iSocket;

	TBool iSignalCanSend;

	TBool iSignalNewData;

	RMBufAsyncRequest iRequest;

	RMBufChain iMBufChain;

    };

} // namespace ESock

#endif