/*

* Copyright (c) 2002-2005 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:  CSatBIPDataReceiver is responsible of Receive operations

*

*/

#ifndef CSATBIPDATARECEIVER_H

#define CSATBIPDATARECEIVER_H

//  INCLUDES

#include    <e32base.h>

#include    <in_sock.h>

#include    "MSatBIPUtils.h"

// FORWARD DECLARATIONS

class CSatBIPGPRSDataChannel;

// CLASS DECLARATION

/**

*  CSatBIPDataReceiver is responsible for receiving data using deifned protocol

*  and to notify CSatBIPGPRSDataChannel when data has been sent.

*

*  @lib SatEngine.lib

*  @since Series 60 3.0

*/

class CSatBIPDataReceiver : public CActive

    {

    public:  // Constructors and destructor

        /**

        * Default constructor.

        * @param aObserver GPRS data channel to whom the received data is passed

        * @param aSocket Socket where the data is received

        * @param aIsTcpSocket Indicates whether to use TCP or UDP

        */

        CSatBIPDataReceiver( CSatBIPGPRSDataChannel& aObserver,

                             RSocket& aSocket,

                             TBool aIsTcpSocket );

        /**

        * Destructor.

        */

        virtual ~CSatBIPDataReceiver();

    public: // Functions from base classes

        /**

        * From CActive. Informs observer that data has been received.

        */

        void RunL();

        /**

        * From CActive. Cancels any outgoing requests

        */

        void DoCancel();

    public: // New functions

        /**

        * This notification is called when SIM has received all the data

        * from ReceiveStore in case of UDP. If there are any pending datagrams,

        * it is stored and receive is available again.

        */

        void ReceiveStoreEmptyNotificationL();

        /**

        * Starts receiving data using predefined protocol.

        * @param aAddr Source address where the data is received.

        */

        void StartReceive( TInetAddr& aAddr );

    private:    // Data

        // Observer the data sent event.

        CSatBIPGPRSDataChannel& iObserver;

        // Socket

        RSocket& iSocket;

        // Defines wether to use UDP or TCP sockets

        TBool iIsTcpSocket;

        // Receive buffer where the data is received

        TBuf8<KSatBIPMinReceiveBufferSize> iRecvBuffer;

        // Contains the number of bytes received

        TInt iReceiveDataLen;

        // Wrapper for bytes received indication

        TSockXfrLength iRecvPckg;

    };

#endif      // CSATBIPDATARECEIVER_H

// End of File