Digikam::ParallelAdapter< A > Class Template Reference

Inheritance diagram for Digikam::ParallelAdapter< A >:

Public Member Functions
	ParallelAdapter ()=default
	Instead of using a single WorkerObject, create a ParallelAdapter for your worker object subclass, and add() individual WorkerObjects.
void	add (A *const worker)
QObject *	asQObject () override
bool	connect (const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type=Qt::AutoConnection) const override
	Connects signals outbound from all workers to a given receiver.
void	deactivate (WorkerObject::DeactivatingMode mode=WorkerObject::FlushSignals) override
const QMetaObject *	metaObject () const override
const QMetaObject *	mocMetaObject () const override
	The moc-generated metaObject of the target object.
int	qt_metacall (QMetaObject::Call _c, int _id, void **_a) override
void	schedule () override
	The corresponding methods of all added worker objects will be called.
StaticMetacallFunction	staticMetacallPointer () override
void	wait () override
int	WorkerObjectQtMetacall (QMetaObject::Call _c, int _id, void **_a) override
	The qt_metacall of WorkerObject, one level above the target QObject.
Public Member Functions inherited from Digikam::ParallelWorkers
	ParallelWorkers ()=default
	ParallelWorkers is a helper class to distribute work over several identical workers objects.
bool	optimalWorkerCountReached () const
void	setPriority (QThread::Priority priority)

Static Public Member Functions
static void	qt_static_metacall (QObject *o, QMetaObject::Call _c, int _id, void **_a)
Static Public Member Functions inherited from Digikam::ParallelWorkers
static int	optimalWorkerCount ()
	Regarding the number of logical CPUs on the current machine, returns the optimal count of concurrent workers.

Additional Inherited Members
Protected Types inherited from Digikam::ParallelWorkers
typedef void(*	StaticMetacallFunction) (QObject *, QMetaObject::Call, int, void **)
Protected Member Functions inherited from Digikam::ParallelWorkers
void	add (WorkerObject *const worker)
const QMetaObject *	replacementMetaObject () const
int	replacementQtMetacall (QMetaObject::Call _c, int _id, void **_a)
	Replaces slot call distribution of the target QObject.
int	replacementStaticQtMetacall (QMetaObject::Call _c, int _id, void **_a)
Protected Attributes inherited from Digikam::ParallelWorkers
int	m_currentIndex = 0
StaticMetacallFunction	m_originalStaticMetacall = nullptr
QMetaObject *	m_replacementMetaObject = nullptr
QList< WorkerObject * >	m_workers

Constructor & Destructor Documentation

ParallelAdapter()

template<class A>

Digikam::ParallelAdapter< A >::ParallelAdapter ( )

default

The load will be evenly distributed.

Note

Unlike with WorkerObject directly, there is no need to call schedule(). For inbound connections (signals connected to a WorkerObject's slot, to be processed, use a Qt::DirectConnection on the adapter. For outbound connections (signals emitted from the WorkerObject), use ParallelAdapter's connect to have a connection from all added WorkerObjects.

Member Function Documentation

asQObject()

template<class A>

QObject * Digikam::ParallelAdapter< A >::asQObject ( )

inlineoverridevirtual

Returns

the target QObject (double inheritance)

Implements Digikam::ParallelWorkers.

connect()

template<class A>

bool Digikam::ParallelAdapter< A >::connect ( const char * signal, const QObject * receiver, const char * method, Qt::ConnectionType type = Qt::AutoConnection ) const

inlineoverridevirtual

Reimplemented from Digikam::ParallelWorkers.

deactivate()

template<class A>

void Digikam::ParallelAdapter< A >::deactivate ( WorkerObject::DeactivatingMode mode = WorkerObject::FlushSignals )

inlineoverridevirtual

Reimplemented from Digikam::ParallelWorkers.

mocMetaObject()

template<class A>

const QMetaObject * Digikam::ParallelAdapter< A >::mocMetaObject ( ) const

inlineoverridevirtual

Implements Digikam::ParallelWorkers.

schedule()

template<class A>

void Digikam::ParallelAdapter< A >::schedule ( )

inlineoverridevirtual

Reimplemented from Digikam::ParallelWorkers.

staticMetacallPointer()

template<class A>

StaticMetacallFunction Digikam::ParallelAdapter< A >::staticMetacallPointer ( )

inlineoverridevirtual

Implements Digikam::ParallelWorkers.

wait()

template<class A>

void Digikam::ParallelAdapter< A >::wait ( )

inlineoverridevirtual

Reimplemented from Digikam::ParallelWorkers.

WorkerObjectQtMetacall()

template<class A>

int Digikam::ParallelAdapter< A >::WorkerObjectQtMetacall ( QMetaObject::Call _c, int _id, void ** _a )

inlineoverridevirtual

Implements Digikam::ParallelWorkers.