The periodic "control thread". More...

#include <ControlThread.h>

Inheritance diagram for ControlThread:

Collaboration diagram for ControlThread:

Public Member Functions
	ControlThread ()
	Constructor. More...

virtual	~ControlThread ()
	Destructor. More...

virtual void	initialize (void)
	Initialize the component. More...

virtual void	run (void)
	Run the thread. More...

virtual void	uninitialize (void)
	Uninitialize the component. More...

void	addComponent (SyncComponent *component)
	Put a component in the control thread's control. More...

void	removeComponent (SyncComponent *component)
	Remove a component from the control thread's control. More...

virtual Handler *	getSyncHandler ()
	Returns the Handler associated with this component. More...

Public Member Functions inherited from AsyncComponent
bool	isIdlePriority ()

Public Member Functions inherited from Component
virtual	~Component ()
	Destructor cleans up readers_ and writers_. More...

void	registerReader (DataReader *reader)

void	unregisterReader (DataReader *reader)

void	registerWriter (DataWriter *writer)

void	unregisterWriter (DataWriter *writer)

void	disableMetering (void)

FlexArray< DataReader * > &	getReaderList (void)

FlexArray< DataWriter * > &	getWriterList (void)

const Module *	getModule ()

virtual void	configure ()
	Read (or re-read!) configuration settings. More...

virtual void	execute (void)

bool	isActive () const
	Indicates if the component is active. More...

const CodedStr &	getName (void) const
	Returns the name. More...

const Timestamp &	getTimeOfLastRun (void) const

ComponentState	getState (void)
	Return the component's current state. More...

void	setState (ComponentState state)

RunState	getRunState (void)
	Return the component's run state. More...

bool	isUsingRunState ()
	Return true if using runState. More...

void	requestData (bool requestingData)
	Tell the component to start (or stop) sending data. More...

void	requestStart ()
	Tell the component to start runnning. More...

void	requestPause (const Timespan expectedPauseTime)
	Tell the component to pause runnning. More...

void	requestResume ()
	Tell the component resume from pause. More...

void	requestStop ()
	Tell the component to stop runnning. More...

virtual RunState	start ()
	Do what needs to be done to run Similar to initialize, in old init/run/uninit sequence. More...

virtual RunState	starting ()
	Might follow a STOP...START sequence Subseqent. More...

virtual RunState	runnable ()
	Should eventually follow a START request or RESETTING. More...

virtual RunState	satisfied ()
	Possible return value of a Behavior. More...

virtual RunState	pause ()
	Pause for a short period (indicated by pauseTime) More...

virtual RunState	pausing ()
	Might follow a PAUSE request. More...

virtual RunState	paused ()
	Should eventually follow a PAUSE request: should set continueTime. More...

virtual RunState	resume ()
	Resume from PAUSE. More...

virtual RunState	resuming ()
	Might follow a PAUSE...RESUME sequence. More...

virtual RunState	resetting ()
	Might occur in case of Error. More...

virtual RunState	stop ()
	Initial state – can be later followed by START. More...

virtual RunState	stopping ()
	Might follow a STOP request. More...

virtual RunState	stopped ()
	Should eventually follow a STOP request. More...

void	setCriticalFailureReported (bool boolVal)

void	setRecoveringFromCritical (bool boolVal)

void	setFailureReported (bool boolVal)

bool	isFailureUninitialized ()

void	setFailureUninitialized (bool boolVal)

void	setRetryTimeout (const Timespan &timeout)

virtual bool	isCompleted (void)
	Query if this component is completed. More...

void	setPeriod (const Timespan &period)
	Set the period of this component... used if it is periodic. More...

const Timespan &	getPeriod (void)
	Returns the component's period (regardless of whether it is periodic) More...

ComponentType	getComponentType ()
	Getter function for ComponentType. More...

virtual bool	isFailed (void) const

virtual FailureMode::FailType	getFailureType (void) const

virtual bool	getCriticalFailureReported (void) const

virtual bool	getFailureReported (void) const

virtual Timespan	getRetryTimeout (void) const

virtual FailureMode::FailType	setFailure (FailureMode::FailType failureType)

virtual int	getFailCount (void) const

virtual bool	isFailureMissionCritical ()

virtual int	getAllowableFailures (void) const

virtual void	setAllowableFailures (int fails)

Logger &	getLogger (void)

virtual int	incrementFailCount (void)

virtual void	resetFailCount (void)

virtual int	getSkippedRunsSinceFail (void) const

virtual int	incrementSkippedRunsSinceFail (void)

virtual void	logVoltage (float voltage, float averageVoltage)

virtual void	logCurrent (float current, float averageCurrent)

const Timestamp &	getWriteTimestamp (void)

void	setWriteTimestamp (const Timestamp &writeTimestamp)

BlobReader *	newBlobReader (const BlobURI &blobURI)

BlobReader *	newBlobReaderFromUniversal (const Str &componentName, const UniversalBlobURI &blobURI)

BlobWriter *	newBlobWriter (const BlobURI &blobURI, Logger::TimePrecisionType timePrecision=Logger::TIME_PRECISION_MILLIS)

ConfigReader *	newConfigReader (const ConfigURI &configURI)

DataReader *	newDataReader (const DataURI &dataURI)

DataReader *	newDataReaderFromUniversal (const Str &componentName, const UniversalURI &universalURI)

DataWriter *	newDataWriter (const DataURI &dataURI, Logger::TimePrecisionType timePrecision=Logger::TIME_PRECISION_MILLIS)

UniversalBlobReader *	newUniversalBlobReader (const UniversalBlobURI &universalURI)

UniversalBlobWriter *	newUniversalBlobWriter (const UniversalBlobURI &universalURI, const Unit &accuracyUnit=Units::NONE, const float accuracy=DataElement::NO_ACCURACY, Logger::TimePrecisionType timePrecision=Logger::TIME_PRECISION_MILLIS)

UniversalDataReader *	newUniversalReader (const UniversalURI &universalURI)

UniversalDataWriter *	newUniversalWriter (const UniversalURI &universalURI, const Unit &accuracyUnit=Units::NONE, const float accuracy=DataElement::NO_ACCURACY, Logger::TimePrecisionType timePrecision=Logger::TIME_PRECISION_MILLIS)

Private Member Functions
int	addComponentsFromQueue (void)
	Takes any new components in the componentsToAdd_ queue,initializes them, and adds them to the control thread. More...

int	removeComponentsFromQueue (void)
	Takes any components in the componentsToRemove_ queue, uninitializes them and removes them from the control thread. More...

Private Attributes
SyncHandler	syncHandler_

ListOfSyncComponents	componentsToAdd_

ListOfSyncComponents	componentsToRemove_

Mutex	addComponentsMutex_

Mutex	removeComponentsMutex_

Additional Inherited Members
Public Types inherited from Component
enum	ComponentState { BLOCK_CONTINUOUS, BLOCK_PERIODIC, BLOCK_NORMAL, BLOCK_COMPLETED, BLOCK_UNKNOWN }
	In this model, the component has basically two states: wanting to run, and completed (no longer needing to run). More...

enum	ComponentType { COMPONENT_ASYNC, COMPONENT_CONFIG, COMPONENT_BEHAVIOR, COMPONENT_SYNC }
	Components can indicate how they want to be handled by their type. More...

enum	RunState { NO_RUN_STATE = 0, START, STARTING, RUNNABLE, SATISFIED, PAUSE, PAUSING, PAUSED, RESUME, RESUMING, RESETTING, STOP, STOPPING, STOPPED }

Protected Types inherited from Component
enum	ConfigOption { CONFIG_SIMULATE_HARDWARE, CONFIG_POWER, CONFIG_FREQUENCY, CONFIG_LATENCY }

Protected Member Functions inherited from AsyncComponent
	AsyncComponent (const Str &name, const Module *module, const Timespan period, bool idlePriority=false)
	Protected constructor for components that run in periodic asynchronous threads. More...

	AsyncComponent (const Str &name, const Module *module, bool idlePriority=false)
	Protected constructor for components that run in continuous asynchronous threads. More...

Protected Member Functions inherited from Component
virtual ConfigURI	getConfigURI (ConfigOption configOption) const
	Should return [myNamespace]::SIMULATE_HARDWARE, or [myNamespace]::POWER, etc. More...

virtual ConfigURI	getConfigURI (ConfigOption configOption, ElementURI forElement) const
	Should return [myNamespace]::POWER_[forElement], [myNamespace]::LATENCY_[forElement], etc. More...

virtual void	setDurationOfLastRun (const Timespan &span)

virtual void	setTimeOfRun (const Timestamp &time)

virtual void	setTimeOfLastRun (const Timestamp &time)

virtual void	setDt (const Timespan &dt)

virtual bool	setEnabled (bool enabled=true)

void	setRunState (const RunState runState)

const Timespan	getPauseTime () const

virtual void	setFailureMissionCritical (bool failureMissionCritical)

bool	simulateHardware ()

Protected Attributes inherited from AsyncComponent
bool	idlePriority_

Protected Attributes inherited from Component
Logger	logger_

Syslog::Severity	debugLevel_

ComponentState	state_
	Keep track of whether the component has "completed" or should be run again. More...

Timespan	desiredPeriod_

CodedStr &	name_
	Store the component's name (used for logging purposes) More...

Timestamp	timeOfRun_

Timestamp	timeOfLastRun_

Timespan	durationOfLastRun_

Timespan	dt_

Timespan	retryTimeout_

bool	enabled_

bool	failureReported_
	Indicates if the failure has been reported – cuts down on syslog. More...

bool	criticalFailureReported_
	Indicates if a "Critical" failure has been reported – cuts down on syslog. More...

bool	recoveringFromCritical_
	Indicates that a component had a previous critical failure that has been cleared temporarily awaiting final word from the component itself. More...

bool	failureUninitialized_
	Indicates if the failure has resulted in an uninitialize call. More...

int	failCount_
	Number of failures logged by PCaller. More...

bool	failureMissionCritical_
	If true (default), complete failure ends mission. More...

int	allowableFailures_
	Number of failures allowed to occur. More...

int	skippedRunsSinceFail_
	Number of skipped runs since failureMode_ set by failCount_. More...

FailureMode::FailType	failureType_
	Failed status. If failCount_ > 0, then this may be reset. More...

Timestamp	timeOfFailure_
	Time of last failure. Relevant only if failed=true. More...

Timestamp	writeTimestamp_
	Time of last write. More...

FlexArray< DataReader * >	readers_

FlexArray< DataWriter * >	writers_

const Module *	module_

Timespan	pauseTime_

bool	meteringEnabled_
	If true, metering is enabled. More...

DataWriter *	durationOfLastRunWriter_
	Writer for durationOfLastRun. More...

DataWriter *	voltageWriter_

DataWriter *	avgVoltageWriter_

DataWriter *	currentWriter_

DataWriter *	avgCurrentWriter_

bool	persistentPause_
	True if data is persistent while component is paused. More...

Detailed Description

The periodic "control thread".

The basic idea is that the ControlThread has a specialized form of Handler which holds a list of Components that will be running each control cycle

The ControlThread is run in a PeriodicThreadHandler by Supervisor. It calculates an order of operations in advance, but is able to determine when "things have changed" and recalculate that order as needed.

On each execution (every 5Hz or whatever) it will work its way through the order of operations, calling components, starting with CycleStarter and ending with LogEngine.