fesa-core  5.0.1
fesa::OnDemandEventSource Class Reference

This class extends the AbstractEventSource class to provide a mechanism that allows clients to trigger real-time actions in a server or a RT action The sending action puts a message in the message queue. The OnDemandEventSource class reads this message from the queue and fires an RT event. More...

#include <OnDemandEventSource.h>

Inheritance diagram for fesa::OnDemandEventSource:
fesa::AbstractEventSource fesa::Thread fesa::HasMetrics

Public Member Functions

 OnDemandEventSource (const std::string &name, const std::string &className, const boost::shared_ptr< OnDemandConsumer > &eventConsumer, const boost::shared_ptr< Diagnostics > &diagnostics)
 Constructor. More...
 
void enable ()
 Enable the event source activity (for all of the related events)

Exceptions
FesaException.

 
- Public Member Functions inherited from fesa::AbstractEventSource
virtual void disable ()
 Disable the event source activity (for all of the related events)

Exceptions
FesaException.

 
bool isEnabled () const
 Check if the source is enabled.
 
void printConfig (FesaStream *fesaStream) const
 Print the event source configuration. More...
 
void printState (std::ostream &stream, double elapsedTime) const
 Print the event source state. More...
 
virtual ~AbstractEventSource ()
 Destructor.
 
const std::string & getName () const
 Retrieve the name of the event source. More...
 
EventSourceType getType () const
 Retrieve the type of the event source. More...
 
uint32_t getEvtSrcPriority () const
 Retrieve the priority of the thread in which the event source runs. More...
 
uint32_t getEvtSrcID () const
 Retrieve the event source's thread ID. More...
 
- Public Member Functions inherited from fesa::Thread
 Thread ()
 Constructor. More...
 
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...
 
- Public Member Functions inherited from fesa::HasMetrics
 HasMetrics (const std::string &componentName)
 

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 Threadcurrent ()
 Returns the Thread object associated with the current thread.
 
static ThreadgetById (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 Member Functions inherited from fesa::AbstractEventSource
 AbstractEventSource (const std::string &eventSourceName, EventSourceType type, const std::string &className, const boost::shared_ptr< Diagnostics > &diagnostics)
 Constructor. More...
 
void run ()
 In a continuous loop, the source will wait for new events, and post them to the scheduler whenever they occur. All exceptions from underlying methods will be cought and logged at this level. This method is blocking.
 
virtual void addEvent (const boost::shared_ptr< fesa::EventElement > &eventElement, const boost::shared_ptr< LogicalEvent > &logicalEvent)
 Add an event to the event map of this source. More...
 
- 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)
 
- Protected Attributes inherited from fesa::AbstractEventSource
DiagnosticsDefs::DiagStateCounter firedEventCount_
 number of event fired by this event-source.
 
- 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

This class extends the AbstractEventSource class to provide a mechanism that allows clients to trigger real-time actions in a server or a RT action The sending action puts a message in the message queue. The OnDemandEventSource class reads this message from the queue and fires an RT event.

Constructor & Destructor Documentation

fesa::OnDemandEventSource::OnDemandEventSource ( const std::string &  name,
const std::string &  className,
const boost::shared_ptr< OnDemandConsumer > &  eventConsumer,
const boost::shared_ptr< Diagnostics > &  diagnostics 
)

Constructor.

Parameters
nameThe name of the event source
classNameThe FESA class the event source belongs to
eventConsumerConsumer of on-demand messages associated with on-demand events
diagnosticsThe diagnostics object to be used for logging in event sources

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