// 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 <s32strm.h>

#include "ssmcommandparameters.h"

#include "ssmcommandutilprovider.h"

#include <ssm/ssmstartupproperties.h>

#include "ssmdebug.h"

#include "ssmpanic.h"

#include "cmdstartprocess.h"

#include "cmdstartapp.h"

/**

Destructor

*/

CCmdStarterBase::~CCmdStarterBase()

	{

	Cancel();

	delete iAppInfo;

	iProcess.Close();

	}

/**

Execute this command

@param aStatus 	Completed to indicate execution of the next command may begin.	

@panic ECmdNullPtr if the information used to create command is null	

*/

void CCmdStarterBase::Execute(TRequestStatus& aStatus)

	{

	__ASSERT_ALWAYS(iUtilProvider, PanicNow(KPanicCmdStarterBase, ECmdNullPtr));

	__ASSERT_ALWAYS(iAppInfo, PanicNow(KPanicCmdStarterBase, ECmdNullPtr));

	aStatus = KRequestPending;

	iExecuteRequest = &aStatus;

	TPtrC fileName = iAppInfo->FileName();

	TPtrC args = iAppInfo->Args();

	iExecutionBehaviour = iAppInfo->ExecutionBehaviour();

	DEBUGPRINT4(_L("Starting : %S with arguments : %S and Execution behaviour : %d"), &fileName, &args, iExecutionBehaviour);

	iUtilProvider->StartSafe().Start(*iAppInfo, iProcess, iStatus, iCallerIndex);

	if (iExecutionBehaviour == ESsmDeferredWaitForSignal)

		{

		// complete the command request and initiate execution of next command

		CompleteExecuteRequest(KErrNone);

		}

	SetActive();

	}

/**

Releases resources associated with this BIC

*/

void CCmdStarterBase::Release()

	{

	delete this;

	}

/**

Cancels the BIC

*/

void CCmdStarterBase::ExecuteCancel()

	{

	//cancel the outstanding request

	Cancel();

	//and complete the request with KErrCancel

	CompleteDeferredExecuteRequest(KErrCancel);

	}

/**

Returns the type of the BIC

@return Type of BIC

*/

TSsmCommandType CCmdStarterBase::Type() const

	{

	return iCommandType;

	}

/**

*/

void CCmdStarterBase::ExternalizeL(RWriteStream& aWriteStream) const

	{

	aWriteStream.WriteInt16L(iSeverity);

	iAppInfo->ExternalizeL(aWriteStream);

#ifdef SYMBIAN_SSM_FLEXIBLE_MERGE

	aWriteStream.WriteUint16L(iPriority);

#endif

	}

/**

Handles command's request completion event.

Request for ESsmDeferredWaitForSignal & ESsmFireAndForget is completed in 

Execute() but completion code will be completed here.

*/

void CCmdStarterBase::RunL()

	{

	TInt err = iStatus.Int();

	TPtrC fileName = iAppInfo->FileName();

	DEBUGPRINT3(_L("%S started with err : %d "), &fileName, err);

	SSMLOGLEAVEIFERROR(err);

	// start monitor if required, for cmds with execution behaviour = ESsmWaitForSignal/ESsmDeferredWaitForSignal

	// Monitor can not be started for ESsmFireAndForget

	if ((iAppInfo->ExecutionBehaviour() != ESsmFireAndForget) && iAppInfo->IsMonitoringRequired())

		{

		// sysmon doesn't monitor the applications with deferredwaitforsignal

		// execution behaviour, so changing it to waitforsignal 

		if (iAppInfo->ExecutionBehaviour() == ESsmDeferredWaitForSignal)

			{

			iAppInfo->SetExecutionBehaviour(ESsmWaitForSignal);

			}

		DEBUGPRINT2(_L("Starting monitor for %S"), &fileName);

		iUtilProvider->SysMonSessionL().MonitorL(*iAppInfo, iProcess);

		}

	CompleteDeferredExecuteRequest(err);

	}

/**

Cancellation of an outstanding request.

*/

void CCmdStarterBase::DoCancel()

	{

	iUtilProvider->StartSafe().StartCancel(iCallerIndex);

	}

/**

Complete the command request with aError. It gets called when RunL leaves.

@param aError Error code with which RunL has left.

@return KErrNone as error is handled in this function.

*/

TInt CCmdStarterBase::RunError(TInt aError)

	{

	DEBUGPRINT2A("CCmdStarterBase::RunError called with reason %d", aError);

	CompleteDeferredExecuteRequest(aError);

	return KErrNone;

	}

/**

Constructs the object through read stream.

@param aReadStream A read stream containing BIC data

*/

void CCmdStarterBase::ConstructL(RReadStream& aReadStream)

	{

	iAppInfo = CSsmStartupProperties::NewL();

	InternalizeL(aReadStream);

	ValidateL();	//validate command's data

	}

/**

Constructs an object from resource file.

@param aCommandParameters Object data from a resource file

*/

void CCmdStarterBase::ConstructL(TSsmCommandParameters& aCommandParameters)

	{

	RResourceReader& reader = aCommandParameters.MainReader();

	iSeverity = static_cast<TCmdErrorSeverity>(reader.ReadInt16L());

	iAppInfo = CSsmStartupProperties::NewL(reader, aCommandParameters.ResourceFile(), Type());

	iExecutionBehaviour = iAppInfo->ExecutionBehaviour();

	ValidateL();	//validate command's data

	}

/**

Constructs an object from aAppInfo.

@param aAppInfo Startup properties through which command will be constructed.

*/

void CCmdStarterBase::ConstructL(const CSsmStartupProperties* aAppInfo)

	{

	SSMLOGLEAVEIFTRUE(aAppInfo == NULL, KErrArgument);

	iAppInfo = CSsmStartupProperties::NewL(*aAppInfo);

	iExecutionBehaviour = iAppInfo->ExecutionBehaviour();

	ValidateL();	//validate command's data

	}

/**

Constructs an object from aAppInfo, Must be used only by CLE

@param aAppInfo Startup properties through which command will be constructed.

@param aFalse is dummy variable to bypass the validation of command

*/

void CCmdStarterBase::ConstructL(const CSsmStartupProperties *aAppInfo, TBool /*aFalse*/)

    {

    SSMLOGLEAVEIFTRUE(aAppInfo == NULL, KErrArgument);

    iAppInfo = CSsmStartupProperties::NewL(*aAppInfo);

    iExecutionBehaviour = iAppInfo->ExecutionBehaviour();

    }

/**

Overloaded CTOR

@param aCommandType Command type, It can be either ESsmCmdStartApp or ESsmCmdStartProcess

*/

CCmdStarterBase::CCmdStarterBase(TSsmCommandType aCommandType)

	: iCommandType(aCommandType)

	{

	}

#ifdef SYMBIAN_SSM_FLEXIBLE_MERGE

/**

Overloaded CTOR

@param aCommandType Command type, It can be either ESsmCmdStartApp or ESsmCmdStartProcess

@param aSeverity Severity of the command

@param aPriority The priority of the command in the list

*/

CCmdStarterBase::CCmdStarterBase(TSsmCommandType aCommandType, TCmdErrorSeverity aSeverity, const TUint16 aPriority)

	: CSsmDeferrableCommand(aSeverity, aPriority), iCommandType(aCommandType)

	{

	}

#endif

/**

Overloaded CTOR

@param aCommandType Command type, It can be either ESsmCmdStartApp or ESsmCmdStartProcess

@param aSeverity Severity of the command

*/

CCmdStarterBase::CCmdStarterBase(TSsmCommandType aCommandType, TCmdErrorSeverity aSeverity)

	: CSsmDeferrableCommand(aSeverity), iCommandType(aCommandType)

	{

	}

/**

Configures the BIC using data contained in a ReadStream

@param aReadStream 	A read stream containing BIC data

*/

void CCmdStarterBase::InternalizeL(RReadStream& aReadStream)

	{

	iSeverity = static_cast<TCmdErrorSeverity>(aReadStream.ReadInt16L());

	iAppInfo->InternalizeL(aReadStream);

	iExecutionBehaviour = iAppInfo->ExecutionBehaviour();

#ifdef SYMBIAN_SSM_FLEXIBLE_MERGE

	iPriority = aReadStream.ReadUint16L();

#endif

	}

/**

Helper function to validate commands data.

@leave KErrArgument If execution behaviour is wrong or FileName() of AppInfo is NULL.

*/

void CCmdStarterBase::ValidateL()

	{

	CSsmDeferrableCommand::ValidateL();

	SSMLOGLEAVEIFTRUE(iAppInfo->Retries() < 0, KErrArgument);

	SSMLOGLEAVEIFTRUE(iAppInfo->FileName() == KNullDesC, KErrArgument);

	}