Notifier Class Reference

Inheritance diagram for Notifier:

Public Member Functions
	Notifier (TimerEventHandler handler, void *param=NULL)
virtual	~Notifier ()
void	StartSingle (double delay)
void	StartPeriodic (double period)
void	Stop ()
Public Member Functions inherited from ErrorBase
virtual Error &	GetError ()
	Retrieve the current error. Get the current error information associated with this sensor.
virtual const Error &	GetError () const
virtual void	SetErrnoError (const char *contextMessage, const char *filename, const char *function, uint32_t lineNumber) const
	Set error information associated with a C library call that set an error to the "errno" global variable. More...
virtual void	SetImaqError (int success, const char *contextMessage, const char *filename, const char *function, uint32_t lineNumber) const
	Set the current error information associated from the nivision Imaq API. More...
virtual void	SetError (Error::Code code, const char *contextMessage, const char *filename, const char *function, uint32_t lineNumber) const
	Set the current error information associated with this sensor. More...
virtual void	SetWPIError (const char *errorMessage, const char *contextMessage, const char *filename, const char *function, uint32_t lineNumber) const
	Set the current error information associated with this sensor. More...
virtual void	CloneError (ErrorBase *rhs) const
virtual void	ClearError () const
	Clear the current error information associated with this sensor.
virtual bool	StatusIsFatal () const
	Check if the current error code represents a fatal error. More...

Additional Inherited Members
Static Public Member Functions inherited from ErrorBase
static void	SetGlobalError (Error::Code code, const char *contextMessage, const char *filename, const char *function, uint32_t lineNumber)
static void	SetGlobalWPIError (const char *errorMessage, const char *contextMessage, const char *filename, const char *function, uint32_t lineNumber)
static Error &	GetGlobalError ()
Protected Member Functions inherited from ErrorBase
	ErrorBase ()
	Initialize the instance status to 0 for now.
Protected Attributes inherited from ErrorBase
Error	m_error
Static Protected Attributes inherited from ErrorBase
static SEM_ID	_globalErrorMutex = semMCreate(SEM_Q_PRIORITY | SEM_DELETE_SAFE | SEM_INVERSION_SAFE)
static Error	_globalError

Constructor & Destructor Documentation

Notifier::Notifier	(	TimerEventHandler	handler,
		void *	param = NULL
	)

Create a Notifier for timer event notification.

Parameters

handler

The handler is called at the notification time which is set using StartSingle or StartPeriodic.

Notifier::~Notifier ( )

virtual

Free the resources for a timer event. All resources will be freed and the timer event will be removed from the queue if necessary.

Member Function Documentation

void Notifier::StartPeriodic

(

double

period

)

Register for periodic event notification. A timer event is queued for periodic event notification. Each time the interrupt occurs, the event will be immediately requeued for the same time interval.

Parameters

period

Period in seconds to call the handler starting one period after the call to this method.

void Notifier::StartSingle

(

double

delay

)

Register for single event notification. A timer event is queued for a single event after the specified delay.

Parameters

delay

Seconds to wait before the handler is called.

void Notifier::Stop

(

)

Stop timer events from occuring. Stop any repeating timer events from occuring. This will also remove any single notification events from the queue. If a timer-based call to the registered handler is in progress, this function will block until the handler call is complete.

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The documentation for this class was generated from the following files:

• Notifier.h
• Notifier.cpp