// Copyright (c) 2004-2009 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:

// PDP status change notifier

// 

//

/**

 @file 

 @internalComponent

*/

#include <e32base.h>

#include "cpdpstatuschangenotifier.h"

#include "PDPFSM.h"

#include "spudteldebuglogger.h"

#include "pdpfsmnmspace.h"

#include <pcktcs.h>

/**

@param aId - pdp context id

@param aPacketContext - reference to etel packet context

@param aPdpFsmInterface - reference to pdp fsm interface

*/

CPdpStatusChangeNotifier::CPdpStatusChangeNotifier(TContextId aId,

										RPacketContext& aPacketContext,

										CPdpFsmInterface& aPdpFsmInterface)

: CEtelDriverNotifier(aPdpFsmInterface),

  iId(aId),

  iPacketContext(aPacketContext),

  iContextStatus(RPacketContext::EStatusUnknown)

	{

	}

CPdpStatusChangeNotifier::~CPdpStatusChangeNotifier()

	{

	Cancel();

	}

/** initiates notification */

void CPdpStatusChangeNotifier::Start()

	{

	if (!IsActive() && (iContextStatus != RPacketContext::EStatusDeleted))

		{ 

		iPacketContext.NotifyStatusChange(iStatus, iContextStatus); 

		SetActive();

		}

	}

/** stops notification */	

void CPdpStatusChangeNotifier::DoCancel()

	{

	if(IsActive())

		{ 

		SPUDTELVERBOSE_INFO_LOG(

			_L("CPdpStatusChangeNotifier::DoCancel EPacketContextNotifyStatusChange"));

		iPacketContext.CancelAsyncRequest(EPacketContextNotifyStatusChange); 

		}

	}

/** notifies pdp fsm 

@param aStatus - request status

*/

void CPdpStatusChangeNotifier::Notify(const TRequestStatus& aStatus)

	{

	if(aStatus == KErrNone)

		{

		SPUDTELVERBOSE_INFO_LOG(_L("Notified of context status change"));

		RPacketContext::TContextStatus aOldContextStatus;

		iPdpFsmInterface.Get(iId, aOldContextStatus);

		// only notify of change if it has actually changed

		if (iContextStatus != aOldContextStatus)

			{

			SPUDTELVERBOSE_INFO_LOG(_L("FSM input EContextStatusChangeNetwork"));

			iPdpFsmInterface.Set(iId, iContextStatus);

            TInt err = KErrNone;

            iPacketContext.GetLastErrorCause(err); // Ignore error return code.

			iPdpFsmInterface.Input(iId, PdpFsm::EContextStatusChangeNetwork, err);

			}

		}

	else

		{ 

		SPUDTEL_ERROR_LOG(_L("CPdpStatusChangeNotifier::Notify(), error: %d"), 

						aStatus.Int());

		ASSERT(aStatus == KErrCancel); 

		}

	}