/*

* 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:  CSatBIPDataSender is responsible of Send operations

*

*/

#ifndef CSATBIPDATASENDER_H

#define CSATBIPDATASENDER_H

//  INCLUDES

#include    <e32base.h>

#include    <in_sock.h>

#include    "MSatBIPUtils.h"

// FORWARD DECLARATIONS

class MSatSendDataObserver;

// CLASS DECLARATION

/**

*  CSatBIPDataSender is responsible for sending data using deifned protocol and

*  to notify MSatSendDataObserver when data has been sent.

*

*  @lib SatEngine.lib

*  @since Series 60 3.0

*/

class CSatBIPDataSender : public CActive

    {

    public:  // Constructors and destructor

        /**

        * Default constructor.

        * @param aObserver Observer of successfull send data

        * @param aSocket Socket where the data is sent

        * @param aIsTcpSocket Indicates wheter to use TCP or UDP

        * @param aBufferSize Size of Tx buffer. Sent back to aObserver

        */

        CSatBIPDataSender( MSatSendDataObserver& aObserver,

                           RSocket& aSocket,

                           TBool aIsTcpSocket,

                           TInt aBufferSize );

        /**

        * Destructor.

        */

        virtual ~CSatBIPDataSender();

    public: // Functions from base classes

        /**

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

        */

        void RunL();

        /**

        * From CActive. Cancels any outgoing requests

        */

        void DoCancel();

    public: // New functions

        /**

        * Sends data using predefined protocol.

        * @param aData Data to send.

        * @param aDest Destination address where the data is sent. Used only

        *        with UDP sockets.

        */

        void SendData( const TDesC8& aData, TInetAddr& aDest );

    private:    // Data

        // Observer the data sent event.

        MSatSendDataObserver& iObserver;

        // Socket

        RSocket& iSocket;

        // Defines wether to use UDP or TCP sockets

        TBool iIsTcpSocket;

        // Holds the amount of data sent with same connection

        TUint iUplinkData;

        // Sender buffer

        TBuf8<KSatBIPMaxBufferSize> iSendPtr;

        // Buffer size. Returned to observer when data is sent

        TInt iBufferSize;

    };

#endif      // CSATBIPDATASENDER_H

// End of File