// 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 "shutdowntimer.h"

#include "savepriv.h"

#ifndef SYMBIAN_ENABLE_SPLIT_HEADERS

#include "shutdownsrv.h"

#else //SYMBIAN_ENABLE_SPLIT_HEADERS

#include "shutdownsess.h"

#endif //SYMBIAN_ENABLE_SPLIT_HEADERS

#include "shutdownsrvpatchdata.h"

/*

Patchable data KShtdwnTimeoutBase can be configured as -1 not to apply the timer 

as backward compatibility.

*/

const TInt32 KShtdwnTimeoutNoApply = -1;

/**

Standard phase-one factory method for creating CShutdownTimer instances.

It might return a NULL pointer if the patchable constant KShtdwnTimeoutBase has been configured 

as -1 which indicates no timer should be started.

@param aShtdwnSrv The reference to CServShutdownServer.

@return 0 if no timer should be started, otherwise a pointer to CShutdownTimer object.

@leave Some system-wide error codes including KErrNoMemory.

@panic KErrNotSupported Incorrect patchable variables configuration.

*/

CShutdownTimer* CShutdownTimer::NewL(CServShutdownServer& aShtdwnSrv)

	{ 

	__ASSERT_ALWAYS( (KShtdwnTimeoutBase >= KShtdwnTimeoutNoApply) && (KShtdwnTimeoutClient >= 0), \

		User::Panic(__SHUTDOWN_SERVER_NAME, KErrNotSupported));

	CShutdownTimer* self = 0;

	if(KShtdwnTimeoutBase > KShtdwnTimeoutNoApply)

		{

		self = new(ELeave) CShutdownTimer(aShtdwnSrv);

		CleanupStack::PushL(self);

		self->ConstructL();

		CleanupStack::Pop(self);

		}

	return self;

	}

/**

Constructor

@param aShtdwnSrv The reference to CServShutdownServer

*/

CShutdownTimer::CShutdownTimer(CServShutdownServer& aShtdwnSrv):

	CTimer(CActive::EPriorityStandard), iShtdwnSrv(aShtdwnSrv)

	{

	CActiveScheduler::Add(this);

    }

/**

Removes the timer object from the active scheduler's list if it has been added.

*/

void CShutdownTimer::DoCancel()

	{

	// Do nothing

	}

/**

Calculates the timeout value by the number of the clients and starts the timer.

@param aNumClients The number of the clients.

*/

void CShutdownTimer::Start(TInt aNumClients)

	{

	TInt32 timeout = KShtdwnTimeoutBase + KShtdwnTimeoutClient * aNumClients;

	After(timeout);

	}

/**

Gets called when the timeout expires.

Calls CServShutdownServer::SwitchOff() to execute the switch off.

*/

void CShutdownTimer::RunL()

	{

	iShtdwnSrv.SwitchOff();

	}