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CStartupProperties Class Reference

class CStartupProperties : public CBase

A parameter class containing application/process starter information that is shared among client applications, system components and client/server processes. This class is used to pass multiple different types of data to API's in only one parameter while ensuring proper data initialization, memory allocation and serializing over IPC when required.

When an instance of this class is created it contains default values for all properties. The usage of this class for different scenarios only requires calling setter functions to overrride parameters which has non-default values.

Instead of this use CSsmStartupProperties

Inherits from

CStartupProperties
- CBase

Nested Classes and Structures

CStartupProperties::TRecoveryPolicy

Public Member Functions
	~CStartupProperties()
IMPORT_C TActionOnCommandFailure	ActionOnCommandFailure()
IMPORT_C TPtrC	Args()
IMPORT_C void	ExternalizeL(CBufBase &)
IMPORT_C TPtrC	FileName()
IMPORT_C void	InternalizeL(const TPtrC8 &)
IMPORT_C TBool	Monitored()
IMPORT_C CStartupProperties *	NewL()
IMPORT_C CStartupProperties *	NewL(const TDesC &, const TDesC &)
IMPORT_C CStartupProperties *	NewL(TResourceReader &)
IMPORT_C CStartupProperties *	NewLC()
IMPORT_C CStartupProperties *	NewLC(const TDesC &, const TDesC &)
IMPORT_C CStartupProperties *	NewLC(TResourceReader &)
IMPORT_C TInt	NoOfRetries()
IMPORT_C TRecoveryMethod	RecoveryMethod()
IMPORT_C void	Reset()
IMPORT_C TInt	RestartMode()
IMPORT_C void	SetActionOnCommandFailure(TActionOnCommandFailure)
IMPORT_C void	SetFileParamsL(const TDesC &, const TDesC &)
IMPORT_C void	SetMonitored(TBool)
IMPORT_C void	SetNoOfRetries(TInt)
IMPORT_C void	SetRecoveryParams(TRecoveryMethod, TInt)
IMPORT_C void	SetStartInBackground(TBool)
IMPORT_C void	SetStartMethod(TStartMethod)
IMPORT_C void	SetStartupType(TStartupType)
IMPORT_C void	SetTimeout(TInt)
IMPORT_C void	SetViewless(TBool)
IMPORT_C TInt	Size()
IMPORT_C TBool	StartInBackground()
IMPORT_C TStartMethod	StartMethod()
IMPORT_C TStartupType	StartupType()
IMPORT_C TInt	Timeout()
IMPORT_C TInt	Version()
IMPORT_C TBool	Viewless()

Private Member Functions
	CStartupProperties()
void	ConstructFromResourceL(TResourceReader &)
void	ConstructL()
void	DoSanityCheck(TStartupCommandType)

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()

Private Attributes
HBufC *	iArgs
HBufC *	iFileName
TBool	iMonitored
TInt	iNoOfRetries
TRecoveryPolicy	iRecoveryMethod
TInt	iRestartMode
TBool	iStartInBackground
TStartMethod	iStartMethod
TStartupType	iStartupType
TInt	iTimeout
TInt	iVersion
TBool	iViewless

Constructor & Destructor Documentation

CStartupProperties()

CStartupProperties

(

)

[private]

~CStartupProperties()

IMPORT_C

~CStartupProperties

(

)

Destructor for CStartupProperties class

Member Functions Documentation

ActionOnCommandFailure()

IMPORT_C TActionOnCommandFailure

ActionOnCommandFailure

(

)

const

Accessor function returning the legacy fail_on_error property used by the old resource structs START_APP_INFO and START_PROCESS_INFO.

Args()

IMPORT_C TPtrC

Args

(

)

const

Accessor function returning arguments property

ConstructFromResourceL(TResourceReader &)

void

ConstructFromResourceL

(

TResourceReader &

aSource

)

[private]

Parameters

TResourceReader & aSource

ConstructL()

void

ConstructL

(

)

[private]

DoSanityCheck(TStartupCommandType)

void

DoSanityCheck

(

TStartupCommandType

aCommandType

)

const [private]

Parameters

TStartupCommandType aCommandType

ExternalizeL(CBufBase &)

IMPORT_C void

ExternalizeL

(

CBufBase &

aBufPtr

)

const

Externalize the class into a buffer. This function has to be updated every time a member has been added to the class to maintain binary compatibility.

Parameters

CBufBase & aBufPtr

A buffer of sufficient size to contain the externalized class data on function return

FileName()

IMPORT_C TPtrC

FileName

(

)

const

Accessor function returning filename property

InternalizeL(const TPtrC8 &)

IMPORT_C void

InternalizeL

(

const TPtrC8 &

aBufPtr

)

Internalize the class from a buffer. This function has to be updated every time a member has been added to the class to maintain binary compatibility.

Parameters

const TPtrC8 & aBufPtr

A buffer containing the externalized class data

Monitored()

IMPORT_C TBool

Monitored

(

)

const

Accessor function returning monitored property

NewL()

IMPORT_C CStartupProperties *

NewL

(

)

[static]

Used to create an instance of CStartupProperties class.

NewL(const TDesC &, const TDesC &)

IMPORT_C CStartupProperties *	NewL	(	const TDesC &	aFileName,
			const TDesC &	aArgs
		)	[static]

Used to create an instance of CStartupProperties class with the specified process filename and arguments.

Parameters

const TDesC & aFileName	A file name containing full path to be used to start up a component.
const TDesC & aArgs	A string that will be used as an argument to the component when starting.

NewL(TResourceReader &)

IMPORT_C CStartupProperties *

NewL

(

TResourceReader &

aSource

)

[static]

Used to create an instance of CStartupProperties class from a resource definition. Supported resource structs are START_PROCESS_INFO, START_PROCESS_INFO2, START_APP_INFO and START_APP_INFO2.

panic: EInvalidCommandType if the Command type is invalid

panic: EInvalidStartMethod if the start method is invalid

panic: EInvalidTimeout if start method is not EWaitForStart then timeout value should be zero

panic: EInvalidNoOfRetries if start method is not EWaitForStart then no_of_retries should be zero

panic: EInvalidRecoveryMethod if the Recovery method called after a command failure is invalid

Parameters

TResourceReader & aSource

The resource reader with which to access the resource values

NewLC()

IMPORT_C CStartupProperties *

NewLC

(

)

[static]

Used to create an instance of CStartupProperties class. The new instance is put on the CleanupStack.

NewLC(const TDesC &, const TDesC &)

IMPORT_C CStartupProperties *	NewLC	(	const TDesC &	aFileName,
			const TDesC &	aArgs
		)	[static]

Used to create an instance of CStartupProperties class with the specified process filename and arguments. The new instance is pushed onto the CleanupStack. CStartupProperties::NewL(const TDesC& aFileName, const TDesC& aArgs)

Parameters

const TDesC & aFileName
const TDesC & aArgs

NewLC(TResourceReader &)

IMPORT_C CStartupProperties *

NewLC

(

TResourceReader &

aSource

)

[static]

Used to create an instance of CStartupProperties class from a resource definition. The new instance is put on the CleanupStack. CStartupProperties::NewL(TResourceReader& aResourceReader)

Parameters

TResourceReader & aSource

NoOfRetries()

IMPORT_C TInt

NoOfRetries

(

)

const

Accessor function returning number of retries property. Only valid when TStartMethod = EWaitForStart.

RecoveryMethod()

IMPORT_C TRecoveryMethod

RecoveryMethod

(

)

const

Accessor function returning recovery method property read from the retry_failure_recovery_method property in the resource structs START_PROCESS_INFO2 and START_APP_INFO2.

Reset()

IMPORT_C void

Reset

(

)

Reset all variables in this instance back to constructor defaults.

RestartMode()

IMPORT_C TInt

RestartMode

(

)

const

Accessor function returning restart mode property

SetActionOnCommandFailure(TActionOnCommandFailure)

IMPORT_C void

SetActionOnCommandFailure

(

TActionOnCommandFailure

aActionOnCommandFailure

)

Action to be taken on command failure. Provides backward compatibility with earlier SSC format. Used to set the fail_on_error fields within START_PROCESS_INFO, START_APP_INFO, START_DLL_INFO, and MULTIPLE_WAIT structures.

Parameters

TActionOnCommandFailure aActionOnCommandFailure

Action to be taken if the system starter command fails.

SetFileParamsL(const TDesC &, const TDesC &)

IMPORT_C void	SetFileParamsL	(	const TDesC &	aFileName,
			const TDesC &	aArgs
		)

Sets file parameters

Parameters

const TDesC & aFileName	A file name containing full path to be used to start up a component.
const TDesC & aArgs	A string that will be used as an argument to the component when starting.

SetMonitored(TBool)

IMPORT_C void

SetMonitored

(

TBool

aMonitored

)

Sets the monitoring parameter. Monitoring a component means the System Monitor server observes the component and takes action when it exits. When a monitored component exits, the System Monitor server will try to restart it the number of times specified in NoOfRetries. If the number of retries is 0, or the number of retries have been exhausted, the TRecoveryMethod is executed.

Parameters

TBool aMonitored

ETrue if the component should be monitored for failure

SetNoOfRetries(TInt)

IMPORT_C void

SetNoOfRetries

(

TInt

aNumRetries

)

Sets failure parameter NoOfRetries. Only valid when TStartMethod = EWaitForStart.

Parameters

TInt aNumRetries

Number of retries to attempt if the component fails to start for the first time during system startup. Also determines if a monitored component should be restarted when it fails. Only valid when TStartMethod = EWaitForStart.

SetRecoveryParams(TRecoveryMethod, TInt)

IMPORT_C void	SetRecoveryParams	(	TRecoveryMethod	aRecoveryMethod,
			TInt	aRestartMode
		)

Sets recovery parameters. When a component being monitored exits and the system fails to restart the component within the specified number of retries, the TRecoveryMethod is executed. Used to set the retry_failure_recovery_method within START_PROCESS_INFO2 and START_APP_INFO2 structures.

Parameters

TRecoveryMethod aRecoveryMethod	The method to use to recover when a monitored component fails.
TInt aRestartMode	The startup mode to restart the OS if recovery method is ERestartOSWithMode. If aRecoveryMethod==ERestartOS this parameter should be zero.

SetStartInBackground(TBool)

IMPORT_C void

SetStartInBackground

(

TBool

aStartInBackground

)

Sets extra startup start in background parameter only needed if starting an application

Parameters

TBool aStartInBackground

ETrue if the application should start in the background

SetStartMethod(TStartMethod)

IMPORT_C void

SetStartMethod

(

TStartMethod

aStartMethod

)

Sets startup method parameter.

Parameters

TStartMethod aStartMethod

The method to be used to start up the component.

SetStartupType(TStartupType)

IMPORT_C void

SetStartupType

(

TStartupType

aType

)

Sets startup type parameter

Parameters

TStartupType aType

EStartProcess for starting processes, EStartApp for starting applications

SetTimeout(TInt)

IMPORT_C void

SetTimeout

(

TInt

aTimeout

)

Sets failure parameter Timeout. Used together with start-method EWaitStart to determine how long to wait for the component being started to rendevouz before aborting an attempt.

Parameters

TInt aTimeout

The time in milliseconds to wait before terminating a component that's taking longer to start (rendezvouz) than this specified timeout value. A value of zero means "do not time this component out". Only valid when TStartMethod = EWaitForStart.

SetViewless(TBool)

IMPORT_C void

SetViewless

(

TBool

aViewless

)

Sets extra startup viewless parameter only needed if starting an application

Parameters

TBool aViewless

ETrue if the application should be viewless

Size()

IMPORT_C TInt

Size

(

)

const

StartInBackground()

IMPORT_C TBool

StartInBackground

(

)

const

Accessor function returning start in background property

StartMethod()

IMPORT_C TStartMethod

StartMethod

(

)

const

Accessor function returning start method property

StartupType()

IMPORT_C TStartupType

StartupType

(

)

const

Accessor function returning startup type property

Timeout()

IMPORT_C TInt

Timeout

(

)

const

Accessor function returning timeout property. Only valid when TStartMethod = EWaitForStart.

Version()

IMPORT_C TInt

Version

(

)

const

Accessor function returning internal version of the parameter object

Viewless()

IMPORT_C TBool

Viewless

(

)

const

Accessor function returning viewless property

Member Data Documentation

HBufC * iArgs

HBufC *

iArgs

[private]

Application arguments

HBufC * iFileName

HBufC *

iFileName

[private]

Path to the application

TBool iMonitored

TBool

iMonitored

[private]

Whether the application should be monitored

TInt iNoOfRetries

TInt

iNoOfRetries

[private]

No of retries if the server/app/process fails to start

TRecoveryPolicy iRecoveryMethod

TRecoveryPolicy

iRecoveryMethod

[private]

How to recover monitored application

TInt iRestartMode

TInt

iRestartMode

[private]

Which startup mode to restart the OS if recovery mode is RestartOSWithMode

TBool iStartInBackground

TBool

iStartInBackground

[private]

Whether the application should be started in the background.

TStartMethod iStartMethod

TStartMethod

iStartMethod

[private]

Whether system starter should wait for application to signal completion or use 'fire and forget' mode.

TStartupType iStartupType

TStartupType

iStartupType

[private]

What to start, application or process.

TInt iTimeout

TInt

iTimeout

[private]

Whether to kill a process that's taking too long. a value of zero means "do not time this process out".

TInt iVersion

TInt

iVersion

[private]

Internal version for the CStartupProperties object

TBool iViewless

TBool

iViewless

[private]

Whether the application should be started viewless.