inviwo::PoolProcessor Class Reference

#include <inviwo/core/processors/poolprocessor.h>

Inheritance diagram for inviwo::PoolProcessor:

Public Member Functions
bool	delayDispatch () const
bool	delayInvalidation () const
template<typename Job, typename Done>
void	dispatchMany (std::vector< Job > jobs, Done &&done)
template<typename Job, typename Done>
void	dispatchOne (Job &&job, Done &&done)
const std::optional< std::string > &	error () const
pool::Options	getOptions () const
virtual std::string	handleError ()
bool	hasJobs ()
virtual void	invalidate (InvalidationLevel invalidationLevel, Property *source=nullptr) override
bool	keepOldJobs () const
void	newResults ()
void	newResults (const std::vector< Outport * > &outports)
PoolProcessor &	operator= (const PoolProcessor &)=delete
PoolProcessor &	operator= (PoolProcessor &&)=delete
	PoolProcessor (const PoolProcessor &)=delete
	PoolProcessor (pool::Options options=pool::Options{flags::empty}, const std::string &identifier="", const std::string &displayName="")
	PoolProcessor (PoolProcessor &&)=delete
bool	queuedDispatch () const
void	stopJobs ()
Public Member Functions inherited from inviwo::Processor
virtual void	accept (NetworkVisitor &visitor)
	Accept a NetworkVisitor, the visitor will visit this and then each Property of the Processor in an undefined order. The Visitor will then visit each Properties's properties and so on.
void	addInteractionHandler (InteractionHandler *interactionHandler)
template<typename T, typename std::enable_if_t< std::is_base_of< Outport, T >::value, int > = 0>
T &	addPort (std::unique_ptr< T > port, std::string_view portGroup="default")
template<typename T, typename std::enable_if_t< std::is_base_of< Inport, T >::value, int > = 0>
T &	addPort (std::unique_ptr< T > port, std::string_view portGroup="default")
template<typename T>
T &	addPort (T &port, std::string_view portGroup="default")
template<typename... Ts>
void	addPorts (Ts &... ports)
bool	allInportsAreReady () const
bool	allInportsConnected () const
virtual void	deserialize (Deserializer &d) override
virtual void	doIfNotReady ()
const std::string &	getCategory () const
const std::string &	getClassIdentifier () const
CodeState	getCodeState () const
const std::string &	getDisplayName () const
virtual const std::string &	getIdentifier () const override
Inport *	getInport (std::string_view identifier) const
const std::vector< Inport * > &	getInports () const
const std::vector< InteractionHandler * > &	getInteractionHandlers () const
virtual InviwoApplication *	getInviwoApplication () override
ProcessorNetwork *	getNetwork () const
Outport *	getOutport (std::string_view identifier) const
const std::vector< Outport * > &	getOutports () const
virtual const PropertyOwner *	getOwner () const override
virtual PropertyOwner *	getOwner () override
Port *	getPort (std::string_view identifier) const
const std::string &	getPortGroup (Port *port) const
std::vector< std::string >	getPortGroups () const
const std::vector< Port * > &	getPortsInGroup (std::string_view portGroup) const
const std::vector< Port * > &	getPortsInSameGroup (Port *port) const
virtual const Processor *	getProcessor () const override
virtual Processor *	getProcessor () override
virtual const ProcessorInfo &	getProcessorInfo () const =0
ProcessorWidget *	getProcessorWidget () const
const Tags &	getTags () const
bool	hasInteractionHandler () const
bool	hasProcessorWidget () const
virtual void	initializeResources ()
virtual void	invokeEvent (Event *event) override
virtual bool	isConnectionActive (Inport *inport, Outport *outport) const
bool	isReady () const
bool	isSink () const
bool	isSource () const
NameDispatcherHandle	onDisplayNameChange (std::function< void(std::string_view, std::string_view)> callback)
NameDispatcherHandle	onIdentifierChange (std::function< void(std::string_view, std::string_view)> callback)
virtual void	process ()
	Processor (std::string_view identifier="", std::string_view displayName="")
virtual void	propagateEvent (Event *event, Outport *source) override
void	removeInteractionHandler (InteractionHandler *interactionHandler)
Inport *	removePort (Inport *port)
Outport *	removePort (Outport *port)
Port *	removePort (std::string_view identifier)
virtual void	serialize (Serializer &s) const override
void	setDisplayName (std::string_view displayName)
void	setIdentifier (std::string_view identifier)
virtual void	setNetwork (ProcessorNetwork *network)
virtual void	setProcessorWidget (std::unique_ptr< ProcessorWidget > processorWidget)
virtual void	setValid () override
const ProcessorStatus &	status () const
Public Member Functions inherited from inviwo::PropertyOwner
template<typename... Ts>
void	addProperties (Ts &... properties)
void	addProperty (Property &property)
void	addProperty (Property *property, bool owner=true)
Property *	addProperty (std::unique_ptr< Property > property)
iterator	begin ()
const_iterator	begin () const
const_iterator	cbegin () const
const_iterator	cend () const
virtual void	clear ()
	Remove all properties; Owned properties will be deleted.
bool	empty () const
iterator	end ()
const_iterator	end () const
const_iterator	find (Property *property) const
const std::vector< CompositeProperty * > &	getCompositeProperties () const
InvalidationLevel	getInvalidationLevel () const
const std::vector< Property * > &	getProperties () const
template<class T>
std::vector< T * >	getPropertiesByType (bool recursiveSearch=false) const
std::vector< Property * >	getPropertiesRecursive () const
std::vector< Property * > &	getPropertiesRecursive (std::vector< Property * > &destination) const
template<std::derived_from< Property > T = Property>
T *	getProperty (std::string_view identifier)
Property *	getPropertyByIdentifier (std::string_view identifier, bool recursiveSearch=false) const
Property *	getPropertyByPath (std::string_view path) const
void	insertProperty (size_t index, Property &property)
	insert property property at position index If index is not valid, the property is appended.
virtual void	insertProperty (size_t index, Property *property, bool owner=true)
	insert property property at position index If index is not valid, the property is appended.
Property *	insertProperty (size_t index, std::unique_ptr< Property > property)
	insert property property at position index If index is not valid, the property is appended.
virtual bool	isValid () const
virtual bool	move (Property *property, size_t newIndex)
PropertyOwner &	operator= (const PropertyOwner &that)=delete
Property *	operator[] (size_t)
const Property *	operator[] (size_t) const
virtual Property *	removeProperty (iterator it)
Property *	removeProperty (Property &property)
Property *	removeProperty (Property *property)
Property *	removeProperty (size_t index)
	remove property referred to by index
Property *	removeProperty (std::string_view identifier)
virtual void	resetAllProperties ()
virtual void	setAllPropertiesCurrentStateAsDefault ()
size_t	size () const
virtual	~PropertyOwner ()
	Removes all properties and notifies its observers of the removal.
Public Member Functions inherited from inviwo::PropertyOwnerObservable
void	notifyObserversDidAddProperty (Property *property, size_t index)
void	notifyObserversDidRemoveProperty (PropertyOwner *owner, Property *property, size_t index)
void	notifyObserversWillAddProperty (PropertyOwner *owner, Property *property, size_t index)
void	notifyObserversWillRemoveProperty (Property *property, size_t index)
Public Member Functions inherited from inviwo::Observable< PropertyOwnerObserver >
void	addObserver (PropertyOwnerObserver *observer)
bool	isObservedBy (PropertyOwnerObserver *observer) const
Observable< PropertyOwnerObserver > &	operator= (const Observable< PropertyOwnerObserver > &other)
void	removeObserver (PropertyOwnerObserver *observer)
virtual void	startBlockingNotifications () override final
virtual void	stopBlockingNotifications () override final
Public Member Functions inherited from inviwo::MetaDataOwner
void	copyMetaDataFrom (const MetaDataOwner &src)
void	copyMetaDataTo (MetaDataOwner &dst)
template<typename T> requires std::derived_from<T, MetaData>
T *	createMetaData (std::string_view key)
void	deserialize (Deserializer &d)
template<typename T> requires std::derived_from<T, MetaData>
T *	getMetaData (std::string_view key)
template<typename T> requires std::derived_from<T, MetaData>
const T *	getMetaData (std::string_view key) const
template<typename T, typename U> requires std::derived_from<T, MetaData> && Gettable<T, U>
U	getMetaData (std::string_view key, U val) const
MetaDataMap *	getMetaDataMap ()
const MetaDataMap *	getMetaDataMap () const
template<typename T> requires std::derived_from<T, MetaData>
bool	hasMetaData (std::string_view key) const
bool	hasMetaData (std::string_view key) const
	MetaDataOwner (const MetaDataOwner &rhs)=default
	MetaDataOwner (MetaDataOwner &rhs)=default
MetaDataOwner &	operator= (const MetaDataOwner &rhs)=default
MetaDataOwner &	operator= (MetaDataOwner &)=default
void	serialize (Serializer &s) const
template<typename T, typename U> requires std::derived_from<T, MetaData> && Settable<T, U>
void	setMetaData (std::string_view key, U value)
template<typename T> requires std::derived_from<T, MetaData>
bool	unsetMetaData (std::string_view key)
	unset, i.e. remove the metadata entry matching the given key and type
Public Member Functions inherited from inviwo::Observable< ProcessorObserver >
void	addObserver (ProcessorObserver *observer)
bool	isObservedBy (ProcessorObserver *observer) const
Observable< ProcessorObserver > &	operator= (const Observable< ProcessorObserver > &other)
void	removeObserver (ProcessorObserver *observer)
virtual void	startBlockingNotifications () override final
virtual void	stopBlockingNotifications () override final

Additional Inherited Members
Public Types inherited from inviwo::Processor
using	NameDispatcher = Dispatcher<void(std::string_view, std::string_view)>
using	NameDispatcherHandle = typename NameDispatcher::Handle
Public Types inherited from inviwo::PropertyOwner
using	const_iterator = std::vector<Property*>::const_iterator
using	iterator = std::vector<Property*>::iterator
Protected Member Functions inherited from inviwo::Processor
void	addPortToGroup (Port *port, std::string_view portGroup)
void	removePortFromGroups (Port *port)
void	setInportsChanged (bool changed)
Protected Member Functions inherited from inviwo::PropertyOwner
void	forEachProperty (std::function< void(Property &)> callback, bool recursiveSearch=false) const
PropertyOwner &	operator= (PropertyOwner &&that)
	PropertyOwner (const PropertyOwner &rhs)
	PropertyOwner (PropertyOwner &&rhs)
Protected Member Functions inherited from inviwo::Observable< PropertyOwnerObserver >
void	forEachObserver (C callback)
Protected Member Functions inherited from inviwo::ObservableInterface
void	addObservationHelper (Observer *observer)
virtual void	addObserver (Observer *observer)=0
void	removeObservationHelper (Observer *observer)
virtual void	removeObserver (Observer *observer)=0
Protected Member Functions inherited from inviwo::ProcessorObservable
void	notifyObserversAboutPropertyChange (Property *p)
void	notifyObserversAboutToProcess (Processor *p)
void	notifyObserversActiveConnectionsChange (Processor *p)
void	notifyObserversFinishBackgroundWork (Processor *p, size_t jobs=1)
void	notifyObserversFinishedProcess (Processor *p)
void	notifyObserversInvalidationBegin (Processor *p)
void	notifyObserversInvalidationEnd (Processor *p)
void	notifyObserversProcessorPortAdded (Processor *p, Port *port)
void	notifyObserversProcessorPortRemoved (Processor *p, Port *port)
void	notifyObserversProgressChanged (Processor *p, std::optional< double > progress)
void	notifyObserversReadyChange (Processor *p)
void	notifyObserversSinkChange (Processor *p)
void	notifyObserversSourceChange (Processor *p)
void	notifyObserversStartBackgroundWork (Processor *p, size_t jobs=1)
Protected Member Functions inherited from inviwo::Observable< ProcessorObserver >
void	forEachObserver (C callback)
Static Protected Member Functions inherited from inviwo::Processor
static std::function< ProcessorStatus()>	getDefaultIsReadyUpdater (Processor *)
Protected Attributes inherited from inviwo::Processor
StateCoordinator< ProcessorStatus >	isReady_
StateCoordinator< bool >	isSink_
StateCoordinator< bool >	isSource_
std::unique_ptr< ProcessorWidget >	processorWidget_
Protected Attributes inherited from inviwo::PropertyOwner
std::vector< CompositeProperty * >	compositeProperties_
std::vector< EventProperty * >	eventProperties_
std::vector< std::unique_ptr< Property > >	ownedProperties_
std::vector< Property * >	properties_
Protected Attributes inherited from inviwo::MetaDataOwner
MetaDataMap	metaData_
Protected Attributes inherited from inviwo::ProcessorObservable
friend	ProcessorNetworkEvaluator
friend	Property

Detailed Description

PoolProcessor is a base class to help make processors that dispatch work to the thread pool.

Constructor & Destructor Documentation

PoolProcessor()

inviwo::PoolProcessor::PoolProcessor	(	pool::Options	options = pool::Options{flags::empty},
		const std::string &	identifier = "",
		const std::string &	displayName = "" )

Construct the pool processor with given options.

See also

pool::Option

Member Function Documentation

delayDispatch()

bool inviwo::PoolProcessor::delayDispatch ( ) const

inline

See also

pool::Option::DelayDispatch

delayInvalidation()

bool inviwo::PoolProcessor::delayInvalidation ( ) const

inline

See also

pool::Option::DelayInvalidation

dispatchMany()

template<typename Job, typename Done>

void inviwo::PoolProcessor::dispatchMany	(	std::vector< Job >	jobs,
		Done &&	done )

Dispatch a vector of background jobs. The jobs will be executed in a background thread in the thread pool. It is important that the jobs captures its state by value, since it might outlive the processor. The jobs can take two optional parameters

• pool::Stop a stop token to periodically check if the job has been canceled.
• pool::Progress a callback to report progress of the calculation. The progress is represented as a float in the interval [0.0, 1.0]. The progress is automatically normalized across all the jobs If the jobs takes a progress callback the processor will show a progress bar. The progress from all the jobs will automatically be merged and normalized

The second functor 'done' is called with the results when the background jobs are finished. It will be executed on the main thread, and only if the processor is still valid and the jobs have not been stopped. Hence it is safe to refer to the processor in this functor.

std::vector<std::function<std::shared_ptr<Mesh>(pool::Stop, pool::Progress progress)>> jobs;
for (...) {
    jobs.push_back([some state](pool::Stop stop, pool::Progress progress) {
        if (stop) return nullptr;
        // construct some new Mesh
        progress(0.5f);
        return newMesh;
    });
}
dispatchMany(jobs, [this](std::vector<std::shared_ptr<Mesh>> results) {
    outport_.setData(std::make_shared<std::vector<std::shared_ptr<Mesh>>>(results));
    newResults();
});

dispatchOne()

template<typename Job, typename Done>

void inviwo::PoolProcessor::dispatchOne	(	Job &&	job,
		Done &&	done )

Dispatch a single background job. The job will be executed in a background thread in the thread pool. It is important that the job captures its state by value, since it might outlive the processor. The job can take two optional parameters

• pool::Stop a stop token to periodically check if the job has been canceled.
• pool::Progress a callback to report progress of the calculation. The progress is represented as a float in the interval [0.0, 1.0]. If the job takes a progress callback the processor will show a progress bar. The second functor done is called with the result when the background job is finished. It will be executed on the main thread, and only if the processor is still valid and the job has not been stopped. Hence it is safe to refer to the processor in this functor.

const auto calc = [image = inport_.getData()]
    ( pool::Stop stop, pool::Progress progress) -> std::shared_ptr<const Image> {
    if (stop) return nullptr;
    auto newImage = std::shared_ptr<Image>(image->clone());
    progress(0.5f);
    // Do some work with the image
    return newImage;
};
 
dispatchOne(calc, [this](std::shared_ptr<const Image> result) {
    outport_.setData(result);
    newResults();  // Let the network know that the processor has new results on the
                   // outport.
});

error()

const std::optional< std::string > & inviwo::PoolProcessor::error

(

)

const

Returns

the last error return by handleError if any. The error is clear at any invalidation.

getOptions()

pool::Options inviwo::PoolProcessor::getOptions ( ) const

inline

Get the current Options

See also

pool::Option

handleError()

virtual std::string inviwo::PoolProcessor::handleError ( )

virtual

handleError is called on the main thread whenever there has be an error in a background calculation this will by default just log the error message, and clear any outports. Deriving classes can overload this and rethrow the caught exception to enable custom error handling if needed.

hasJobs()

bool inviwo::PoolProcessor::hasJobs

(

)

Are there any ongoing background jobs

invalidate()

virtual void inviwo::PoolProcessor::invalidate ( InvalidationLevel invalidationLevel, Property * source = nullptr )

overridevirtual

Overrides Processor::invalidate to customize the invalidation behavior We generally only want to invalidate the dependent processor when we put data on our outports.

Reimplemented from inviwo::Processor.

keepOldJobs()

bool inviwo::PoolProcessor::keepOldJobs ( ) const

inline

See also

pool::Option::KeepOldResults

newResults() [1/2]

void inviwo::PoolProcessor::newResults

(

)

Call newResults to let the network know we have new data on our outports.

newResults() [2/2]

void inviwo::PoolProcessor::newResults

(

const std::vector< Outport * > &

outports

)

Call newResults to let the network know we have new data on our outports. Only invalidate the specified outports. Use this if you only set data to a subset of the outports.

queuedDispatch()

bool inviwo::PoolProcessor::queuedDispatch ( ) const

inline

See also

pool::Option::QueuedDispatch

stopJobs()

void inviwo::PoolProcessor::stopJobs

(

)

Cancel all current jobs

---

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

• include/inviwo/core/processors/poolprocessor.h