// Copyright (c) 2007-2009 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:

//

#include "logonbackofftimer.h"

#include "shmadebug.h"

const TInt KMonitorLogonRetryFirstInterval = 100000; // 100ms

const TInt KMonitorLogonRetryMaxInterval = 10000000; // 10s

const TInt KMonitorLogonRetryIntervalMultiple = 2; 

/**

 Called from CMonitor

*/	

void CLogonBackoffTimer::ProcessLogon()

	{

	if( (iMonitor.DoProcessLogon() == KErrNoMemory) )

		{	

		iTimer.After( iStatus, iRetryInterval );

		SetActive();

		if( (iRetryInterval *= KMonitorLogonRetryIntervalMultiple) >= KMonitorLogonRetryMaxInterval ) 

			{

			iRetryInterval = KMonitorLogonRetryMaxInterval;	

			}

		DEBUGPRINT1( _L("SysMonMonitor: Logon failed owing to lack of memory ") );	

		}

	else

		{

		iMonitor.ActivateSelf();

		iRetryInterval = KMonitorLogonRetryFirstInterval;	

		}

	}

void CLogonBackoffTimer::RunL()

	{

	ProcessLogon();		

	}

void CLogonBackoffTimer::DoCancel()

	{

	iTimer.Cancel();	

	}

TInt CLogonBackoffTimer::RunError( TInt /*aError*/ )

	{

	iTimer.Cancel();

	return KErrNone;	

	}

CLogonBackoffTimer* CLogonBackoffTimer::NewL( MLogonCallback& aMonitor )

	{

	CLogonBackoffTimer* self = new(ELeave) CLogonBackoffTimer( aMonitor );

	CleanupStack::PushL( self );

	self->ConstructL();

	CleanupStack::Pop();

	return self;

	}

void CLogonBackoffTimer::ConstructL()

	{

	User::LeaveIfError( iTimer.CreateLocal() );	

	CActiveScheduler::Add( this );

	}

 CLogonBackoffTimer::CLogonBackoffTimer( MLogonCallback& aMonitor )

: CActive( EPriorityStandard ), iMonitor( aMonitor ), iRetryInterval( KMonitorLogonRetryFirstInterval )

 	{

 	}

CLogonBackoffTimer::~CLogonBackoffTimer()

	{

	Cancel();

	iTimer.Close();	

	}