fesa::RTScheduler Class Reference

The scheduler class contains the real time behavior of the class. It waits for events and then executes the real time action related to them. More...

#include <RTScheduler.h>

Inheritance diagram for fesa::RTScheduler:

Public Member Functions
	RTScheduler (const std::string &name, int32_t eventQueueSize, EventDiscardPolicy::EventDiscardPolicy eventDiscardPolicy, bool errorOnEventDiscard, const ThreadConfigurer::SchedulingConfig &threadSchedulingConfig)
virtual	~RTScheduler ()
virtual void	post (uint32_t logicalEventID, boost::shared_ptr< RTEvent > &concreteEvent, AtomicSizeTPtr &nSchedulers)
	This method inserts the event passed by argument into the queue of the scheduler in order to process it. More...
void	updateAcquisitionTimestamp (timestamp_ns timestamp, AtomicSizeTPtr &nSchedulers)
virtual void	addRTAction (uint32_t logicalEventID, AbstractRTAction *rtAction)
	This method links the RT action and the event passed by arguments. More...
virtual const std::string &	getName () const
	return the name of this RTScheduler
virtual void	printState (std::ostream &stream, double elapsedTime)
	Print some information about the actual state of the RTScheduler. More...
virtual void	printConfig (FesaStream &fesaStream)
virtual void	cancel ()
	This call provokes the stop of the scheduler and an exit on the current thread.
Public Member Functions inherited from fesa::Thread
virtual	~Thread ()
	Destructor.
void	setDetachState (int32_t state)
	Modify the detach state of the thread. More...
void	start (bool blockingMode, const std::string &threadName, bool permanent=true)
virtual void	stop ()
	Stop the thread.
int	join (void **status)
bool	isRunning () const
	Check if the thread is running. More...
pthread_t	getID () const
	Get the process ID. More...
int32_t	getPriority () const
	Get the priority of the thread. More...
cpu_set_t	getAffinity () const
	Get the affinity of the thread.
void	setPriority (int32_t priority)
	Set the priority of the thread. More...
void	setAffinity (cpu_set_t affinity)
	Set the affinity of the thread. More...
ThreadType	getThreadType () const
Public Member Functions inherited from fesa::HasMetrics
	HasMetrics (const std::string &componentName)

Protected Member Functions
	RTScheduler ()
	Empty Constructor, used for unit-testing (Mocking of this class)
Protected Member Functions inherited from fesa::HasMetrics
template<typename T >
void	registerMetric (const std::string &name, T &value)
template<typename T >
void	registerMetric (const std::string &name, boost::atomic< T > &value)

Additional Inherited Members
Static Public Member Functions inherited from fesa::Thread
static void	AdjustProcessScheduling ()
	The process priority can only be adjusted in the main thread. It needs to be adjusted to the maximal thread priority since it sets the limit of the thread priorities of this process. More...
static std::string	getThreadName (pthread_t threadId)
	Get the name of the thread by its id. More...
static std::string	getCurrentThreadName ()
static void	registerThreadIdName (pthread_t threadId, const std::string &threadName)
	Associate a thread id with a name. More...
static void	registerThreadId (pthread_t threadId, Thread *thread)
	Associate a thread id with a name. More...
static Thread *	current ()
	Returns the Thread object associated with the current thread.
static Thread *	getById (pthread_t id)
	Returns the Thread object associated with the given id. Throws FesaException if the id is unknown. More...
static const std::set< const Thread * >	getThreads ()
Protected Attributes inherited from fesa::Thread
bool	isRunning_
	true if the thread is running
bool	hasFinished_
	true if the thread has finished.
bool	joinHasFinished_
	if true, a call to pthread_join has completed and a further pthread_cancel / pthread_join call is unsafe
bool	permanent_
pthread_t	tid_
	Id of this thread.

Detailed Description

The scheduler class contains the real time behavior of the class. It waits for events and then executes the real time action related to them.

Constructor & Destructor Documentation

fesa::RTScheduler::RTScheduler	(	const std::string &	name,
		int32_t	eventQueueSize,
		EventDiscardPolicy::EventDiscardPolicy	eventDiscardPolicy,
		bool	errorOnEventDiscard,
		const ThreadConfigurer::SchedulingConfig &	threadSchedulingConfig
	)

Parameters

name	name of the scheduler
eventQueueSize	event queue size
eventDiscardPolicy	event discard policy to use
errorOnEventDiscard	if true, an error is logged when an event is discarded
prio	the priority of this scheduler

fesa::RTScheduler::~RTScheduler ( )

virtual

Destructor

Member Function Documentation

void fesa::RTScheduler::addRTAction ( uint32_t  logicalEventID, AbstractRTAction *  rtAction  )

virtual

This method links the RT action and the event passed by arguments.

Parameters

logicalEventID	ID of the logical-event which fires the action
rtAction	to be executed when the event arrives

void fesa::RTScheduler::post ( uint32_t  logicalEventID, boost::shared_ptr< RTEvent > &  concreteEvent, AtomicSizeTPtr &  nSchedulers  )

virtual

This method inserts the event passed by argument into the queue of the scheduler in order to process it.

Parameters

logicalEventID	ID of the logical event which is associated to the passed concrete event
concreteEvent	concrete event which should be processed by this scheduler
nSchedulers	number of schedulers scheduling this event

void fesa::RTScheduler::printConfig ( FesaStream &  fesaStream )

virtual

Parameters

fesaStream

void fesa::RTScheduler::printState ( std::ostream &  stream, double  elapsedTime  )

virtual

Print some information about the actual state of the RTScheduler.

Parameters

fesaStream
elapsedTime

void fesa::RTScheduler::updateAcquisitionTimestamp	(	timestamp_ns	timestamp,
		AtomicSizeTPtr &	nSchedulers
	)

Updates the latest acquisition timestamp if nSchedulers reaches 0 after being decremented.

Parameters

nSchedulers	number of schedulers still scheduling the current event
timestamp	value of the new acquisition timestamp

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

• RTScheduler.h
• RTScheduler.cpp