// Copyright (c) 2005-2009 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 "StartupState.h"

#include <domainmanager.h>

#include <startup.hrh>

#include "StartupStateInfo.h"

#include "StartupCommand.h"

#include "startupdomaindefs.h"

#include "SysStartDebug.h"

#include "sysstartpanic.h"

#include "restartsys.h"

//

// Standard Symbian factory functions

//

CStartupState* CStartupState::NewL(const MStartupStateInfo& aInfo)

	{

	CStartupState* self = CStartupState::NewLC(aInfo);

	CleanupStack::Pop(self);

	return self;

	}

CStartupState* CStartupState::NewLC(const MStartupStateInfo& aInfo)

	{

	CStartupState* self = new (ELeave) CStartupState(aInfo);

	CleanupStack::PushL(self);

	return self;

	}

//

// Public functions

//

void CStartupState::Start()

	{

	TPtrC stateName = iStateInfo.Name();

 	// Connect to the domain manager in order to notify state transition

	RDmDomainManager notifier;

	TInt r = notifier.Connect(KDmHierarchyIdStartup);

	if (r == KErrNone)

		{

		//TRequestStatus is used in the while-loop and the loop should be run for the first time, 

		//so its intial value is set to KErrGeneral.. 

		TRequestStatus stateNotifyStatus = KErrGeneral;

 		// Find out from the value provisioned in the startup configuration file (SSC)

 		// how many times to re-attempt state change following a state transition failure.	

 		TInt attemptsRequired = iStateInfo.NoOfRetries() + 1;  

   		while ((stateNotifyStatus != KErrNone) && (attemptsRequired-- >0))

   			{	 	

 			// Request a state change from the domain manager

 			DEBUGPRINT2(_L("SysStart: Send state transition request (move to %S) to domain manager"), &stateName);

			notifier.RequestSystemTransition(iStateInfo.StateId(),

										 ETraverseParentsFirst, stateNotifyStatus);

 			// Wait for result of the state change

			User::WaitForRequest(stateNotifyStatus);

			DEBUGPRINT2(_L("SysStart: Result of state transition request is %d"), stateNotifyStatus.Int() );	 

   			}  

 		// If state transition has failed after the specified no of retries,

 		// take action as specified in the SSC

		if (stateNotifyStatus != KErrNone)

			{

			// Value in configuration file can be set to panic or ignore.

			if (iStateInfo.ActionOnStateTransitionFailure() == EPanicOnFailure)

				{				

				DEBUGPRINT2(_L("SysStart: State transition to %S failed"), &stateName);	 	

				// RestartSys will be used to trigger system restart.

				TInt ret = RestartSys::RestartSystem();

				if (ret != KErrNone)

					{

					DEBUGPRINT2(_L("SysStart: RestartSystem failed with error %d"), ret);

					PanicNow(KPanicStartupState, ERestartSystemCallFailed);

					}

				User::After(5000000); // required by RestartSys API, see comments in RestartSys::RestartSystem()

				}

			else 

				{

				DEBUGPRINT2(_L("SysStart: State transition to %S failed. Ignoring as specified in the SSC"), &stateName);

				}	 

			}

		notifier.Close();

		}

	else // Domain manager connection failed.

		{

		DEBUGPRINT2(_L("SysStart: Domain manager connection failed with error %d"), r);

		PanicNow(KPanicStartupState, EDomainManagerConnectionFailure);

		}

	// Execute the commands relevant to this state

	for (TInt i = 0; i < iStateInfo.Count(); ++i)

		{

		DoCommand(*(iStateInfo.GetCommand(i)));

		}

	}

//

// Private functions

//

CStartupState::CStartupState(const MStartupStateInfo& aInfo) :

	iStateInfo(aInfo)

	{

	}

void CStartupState::DoCommand(MStartupCommand& aCommand)

	{

	TRequestStatus status;

	aCommand.Execute(status);

	User::WaitForRequest(status);

	if (status!=KErrNone)

		{

		DEBUGPRINT2(_L("SSC command failed with error %d"), status.Int());

		}			

	}