// 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:

// Definition of the PSY request channel component.

// 

//

#ifndef CPSYREQUESTCHANNEL_H_

#define CPSYREQUESTCHANNEL_H_

#include "lbsnetinternalapi.h"

#include "LbsPsyNgMsgs.h"

#include "requestmessagebuffer.h"

/**

Observer class to be used by the Network Gateway to inform it

when messages are deivered from a Network PSY.

*/

class MPsyRequestObserver

    {

public:

    virtual void ProcessPsyMessage(const TLbsNetInternalMsgBase& aMessage) = 0;

    };

/**

Provides an API for use by Network PSYs to the Network Gateway.

The creator of a CPsyRequestChannel should pass in the channel it

wishes the object to write to and read from.

*/

class CPsyRequestChannel : public CActive, public MLbsNetChannelObserver

    {

public:

    static CPsyRequestChannel* NewL(MPsyRequestObserver& aObserver, TUint aChannel);

    ~CPsyRequestChannel();

    // from CActive

    void RunL();

    void DoCancel();

    TInt RunError(TInt aError);

    // Send a message to a PSY

    void SendNetworkResponse(const TLbsNetInternalMsgBase& aMessage);

    // from MLbsNetChannelObserver : process a message from a PSY

    void ProcessNetChannelMessage(RLbsNetChannel::TLbsNetChannelId aChannelId, const TLbsNetInternalMsgBase& aMessage);

private:

    CPsyRequestChannel(MPsyRequestObserver& aObserver);

    void ConstructL(TUint aChannel);

    void SendMessage(const TLbsNetInternalMsgBase& aMessage);

    void SendNextBufferedMessage();

private:

    CRequestMessageBuffer* iMsgBuffer;

    MPsyRequestObserver& iObserver;

    RLbsNetChannel iPsyResponseChannel;

    };

#endif /* CPSYREQUESTCHANNEL_H_ */