/*

* Copyright (c) 2007 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:  Observer of the GPRS connection status change

*

*/

// INCLUDE FILES

#include <etelpckt.h>

#include <pcktcs.h> // for EPacketNotifyStatusChange in DoCancel

#include "csatbipconnectionobserver.h"

#include "CSatBIPUtils.h"

#include "SatLog.h"

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// CSatBIPConnectionObserver::CSatBIPConnectionObserver

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

//

CSatBIPConnectionObserver::CSatBIPConnectionObserver(

    CSatBIPUtils& aBipUtils ) :

    CActive( EPriorityNormal ),

    iBipUtils( aBipUtils )

    {

    LOG( NORMAL, "SATENGINE: CSatBIPConnectionObserver::\

        CSatBIPConnectionObserver calling" )

    CActiveScheduler::Add( this );

    // Get current status

    iBipUtils.PacketService().GetStatus( iConnectionStatus );

    // Set last status

    iPrevConnectionStatus = iConnectionStatus;

    LOG2( NORMAL, "SATENGINE: CSatBIPConnectionObserver::\

        CSatBIPConnectionObserver exiting: %i", iConnectionStatus )

    }

// -----------------------------------------------------------------------------

// CSatBIPConnectionObserver::~CSatBIPConnectionObserver

// Destructor

// -----------------------------------------------------------------------------

//

CSatBIPConnectionObserver::~CSatBIPConnectionObserver()

    {

    LOG( SIMPLE,

        "SATENGINE: CSatBIPConnectionObserver::~CSatBIPConnectionObserver \

        calling" )

    Cancel();

    LOG( SIMPLE,

        "SATENGINE: CSatBIPConnectionObserver::~CSatBIPConnectionObserver \

        exiting" )

    }

// -----------------------------------------------------------------------------

// CSatBIPConnectionObserver::RunL

// -----------------------------------------------------------------------------

//

void CSatBIPConnectionObserver::RunL()

    {

    LOG( NORMAL, "SATENGINE: CSatBIPConnectionObserver::RunL calling" )

    const TInt errStatus( iStatus.Int() );

    LOG2( SIMPLE, " RunL (%i)", errStatus )

    LOG2( SIMPLE, " ConnStatus (%i)", iConnectionStatus )

    if ( KErrNone == errStatus )

        {

        //if previous status is active packet data connection and

        //current status is inactive packet data connection, drop links.

        if( RPacketService::EStatusActive == iPrevConnectionStatus && 

            ( RPacketService::EStatusAttached == iConnectionStatus || 

            RPacketService::EStatusUnattached == iConnectionStatus ))

            {

            LOG( NORMAL, "CSatBIPConnectionObserver::RunL stop UDP link" )

            iBipUtils.StopUdpLink();

            }

        // Restart request

        iPrevConnectionStatus = iConnectionStatus;

        iBipUtils.PacketService().NotifyStatusChange( iStatus, iConnectionStatus );

        SetActive();

        }

    LOG( NORMAL, "SATENGINE: CSatBIPConnectionObserver::RunL exiting" )

    }

// -----------------------------------------------------------------------------

// CSatBIPConnectionObserver::DoCancel

// -----------------------------------------------------------------------------

//

void CSatBIPConnectionObserver::DoCancel()

    {

    LOG( NORMAL, "SATENGINE: CSatBIPConnectionObserver::DoCancel calling" )

    iBipUtils.PacketService().CancelAsyncRequest( EPacketNotifyStatusChange );

    LOG( NORMAL, "SATENGINE: CSatBIPConnectionObserver::DoCancel exiting" )

    }

// -----------------------------------------------------------------------------

// CSatBIPConnectionObserver::StartObserver

// Starts to observe connection status

// -----------------------------------------------------------------------------

//

void CSatBIPConnectionObserver::StartObserver()

    {

    LOG( NORMAL, "SATENGINE: CSatBIPConnectionObserver::StartObserver calling" )

    if ( !IsActive() )

        {

        LOG( SIMPLE, "  Activating observer" )

        iBipUtils.PacketService().NotifyStatusChange( iStatus, iConnectionStatus );

        SetActive();

        }

    LOG( NORMAL, "SATENGINE: CSatBIPConnectionObserver::StartObserver exiting" )

    }

// -----------------------------------------------------------------------------

// CSatBIPConnectionObserver::Status

// Returns current connection status

// -----------------------------------------------------------------------------

//

RPacketService::TStatus CSatBIPConnectionObserver::Status() const

    {

    LOG( NORMAL, "SATENGINE: CSatBIPConnectionObserver::Status \

    calling-exiting" )

    LOG2( NORMAL, " ConnectionStatus: %i", iConnectionStatus )

    return iConnectionStatus;

    }

// End of file