#include <qeventdispatcher_glib_p.h>

Inheritance diagram for QEventDispatcherGlib:

Collaboration diagram for QEventDispatcherGlib:

Public Member Functions
	QEventDispatcherGlib (QObject *parent=nullptr)

	QEventDispatcherGlib (GMainContext context, QObject parent=nullptr)

	~QEventDispatcherGlib ()

bool	processEvents (QEventLoop::ProcessEventsFlags flags) override
	Processes pending events that match flags until there are no more events to process.

void	registerSocketNotifier (QSocketNotifier *socketNotifier) final
	Registers notifier with the event loop.

void	unregisterSocketNotifier (QSocketNotifier *socketNotifier) final
	Unregisters notifier from the event dispatcher.

void	registerTimer (int timerId, qint64 interval, Qt::TimerType timerType, QObject *object) final
	Register a timer with the specified timerId, interval, and timerType for the given object.

bool	unregisterTimer (int timerId) final
	Unregisters the timer with the given timerId.

bool	unregisterTimers (QObject *object) final
	Unregisters all the timers associated with the given object.

QList< TimerInfo >	registeredTimers (QObject *object) const final
	Returns a list of registered timers for object.

int	remainingTime (int timerId) final
	Returns the remaining time in milliseconds with the given timerId.

void	wakeUp () final
	\threadsafe

void	interrupt () final
	Interrupts event dispatching.

Public Member Functions inherited from QAbstractEventDispatcher
	QAbstractEventDispatcher (QObject *parent=nullptr)
	Constructs a new event dispatcher with the given parent.

	~QAbstractEventDispatcher ()
	Destroys the event dispatcher.

virtual bool	processEvents (QEventLoop::ProcessEventsFlags flags)=0
	Processes pending events that match flags until there are no more events to process.

virtual void	registerSocketNotifier (QSocketNotifier *notifier)=0
	Registers notifier with the event loop.

virtual void	unregisterSocketNotifier (QSocketNotifier *notifier)=0
	Unregisters notifier from the event dispatcher.

int	registerTimer (qint64 interval, Qt::TimerType timerType, QObject *object)
	Registers a timer with the specified interval and timerType for the given object and returns the timer id.

virtual void	registerTimer (int timerId, qint64 interval, Qt::TimerType timerType, QObject *object)=0
	Register a timer with the specified timerId, interval, and timerType for the given object.

virtual bool	unregisterTimer (int timerId)=0
	Unregisters the timer with the given timerId.

virtual bool	unregisterTimers (QObject *object)=0
	Unregisters all the timers associated with the given object.

virtual QList< TimerInfo >	registeredTimers (QObject *object) const =0
	Returns a list of registered timers for object.

virtual int	remainingTime (int timerId)=0
	Returns the remaining time in milliseconds with the given timerId.

virtual void	wakeUp ()=0
	\threadsafe

virtual void	interrupt ()=0
	Interrupts event dispatching.

virtual void	startingUp ()

virtual void	closingDown ()

void	installNativeEventFilter (QAbstractNativeEventFilter *filterObj)
	\variable QAbstractEventDispatcher::TimerInfo::timerId

void	removeNativeEventFilter (QAbstractNativeEventFilter *filterObj)
	Removes the event filter filter from this object.

bool	filterNativeEvent (const QByteArray &eventType, void message, qintptr result)
	Sends message through the event filters that were set by installNativeEventFilter().

Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)
	Constructs an object with parent object parent.

virtual	~QObject ()
	Destroys the object, deleting all its child objects.

virtual bool	event (QEvent *event)
	This virtual function receives events to an object and should return true if the event e was recognized and processed.

virtual bool	eventFilter (QObject watched, QEvent event)
	Filters events if this object has been installed as an event filter for the watched object.

QString	objectName () const

Q_WEAK_OVERLOAD void	setObjectName (const QString &name)
	Sets the object's name to name.

void	setObjectName (QAnyStringView name)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QBindable< QString >	bindableObjectName ()

bool	isWidgetType () const
	Returns `true` if the object is a widget; otherwise returns `false`.

bool	isWindowType () const
	Returns `true` if the object is a window; otherwise returns `false`.

bool	isQuickItemType () const
	Returns `true` if the object is a QQuickItem; otherwise returns `false`.

bool	signalsBlocked () const noexcept
	Returns `true` if signals are blocked; otherwise returns `false`.

bool	blockSignals (bool b) noexcept
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).

QThread *	thread () const
	Returns the thread in which the object lives.

void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children.

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
	This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.

int	startTimer (std::chrono::milliseconds time, Qt::TimerType timerType=Qt::CoarseTimer)

void	killTimer (int id)
	Kills the timer with timer identifier, id.

template<typename T >
T	findChild (const QString &aName=QString(), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.

template<typename T >
QList< T >	findChildren (const QString &aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.

template<typename T >
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

const QObjectList &	children () const
	Returns a list of child objects.

void	setParent (QObject *parent)
	Makes the object a child of parent.

void	installEventFilter (QObject *filterObj)
	Installs an event filter filterObj on this object.

void	removeEventFilter (QObject *obj)
	Removes an event filter object obj from this object.

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=nullptr, const QObject receiver=nullptr, const char *member=nullptr) const

bool	disconnect (const QObject receiver, const char member=nullptr) const

void	dumpObjectTree () const
	Dumps a tree of children to the debug output.

void	dumpObjectInfo () const
	Dumps information about signal connections, etc.

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value.

bool	setProperty (const char *name, QVariant &&value)

QVariant	property (const char *name) const
	Returns the value of the object's name property.

QList< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

QObject *	parent () const
	Returns a pointer to the parent object.

bool	inherits (const char *classname) const
	Returns `true` if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns `false`.

Static Public Member Functions
static bool	versionSupported ()

Static Public Member Functions inherited from QAbstractEventDispatcher
static QAbstractEventDispatcher *	instance (QThread *thread=nullptr)
	Returns a pointer to the event dispatcher object for the specified thread.

Static Public Member Functions inherited from QObject
static QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	\threadsafe

static QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	\threadsafe

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static bool	disconnect (const QMetaObject::Connection &)
	Disconnect a connection.

template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiver, Func2 slot)

template<typename Func1 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject receiver, void **zero)

Protected Member Functions
	QEventDispatcherGlib (QEventDispatcherGlibPrivate &dd, QObject *parent)

Protected Member Functions inherited from QAbstractEventDispatcher
	QAbstractEventDispatcher (QAbstractEventDispatcherPrivate &, QObject *parent)

Protected Member Functions inherited from QObject
QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.

int	senderSignalIndex () const

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal.

bool	isSignalConnected (const QMetaMethod &signal) const

virtual void	timerEvent (QTimerEvent *event)
	This event handler can be reimplemented in a subclass to receive timer events for the object.

virtual void	childEvent (QChildEvent *event)
	This event handler can be reimplemented in a subclass to receive child events.

virtual void	customEvent (QEvent *event)
	This event handler can be reimplemented in a subclass to receive custom events.

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	disconnectNotify (const QMetaMethod &signal)

	QObject (QObjectPrivate &dd, QObject *parent=nullptr)

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

Signals inherited from QAbstractEventDispatcher
void	aboutToBlock ()
	This signal is emitted before the event loop calls a function that could block.

void	awake ()
	This signal is emitted after the event loop returns from a function that could block.

Signals inherited from QObject
void	destroyed (QObject *=nullptr)
	This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.

void	objectNameChanged (const QString &objectName, QPrivateSignal)
	This signal is emitted after the object's name has been changed.

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Properties inherited from QObject
QString	objectName
	the name of this object

Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.

template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

Definition at line 27 of file qeventdispatcher_glib_p.h.

Constructor & Destructor Documentation

◆ QEventDispatcherGlib() [1/3]

QEventDispatcherGlib::QEventDispatcherGlib ( QObject * parent = nullptr )

explicit

Definition at line 324 of file qeventdispatcher_glib.cpp.

◆ QEventDispatcherGlib() [2/3]

QEventDispatcherGlib::QEventDispatcherGlib	(	GMainContext *	context,
		QObject *	parent = `nullptr`
	)

explicit

Definition at line 329 of file qeventdispatcher_glib.cpp.

◆ ~QEventDispatcherGlib()

QEventDispatcherGlib::~QEventDispatcherGlib ( )

Definition at line 333 of file qeventdispatcher_glib.cpp.

References d, i, Q_ASSERT, and qDeleteAll().

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◆ QEventDispatcherGlib() [3/3]

QEventDispatcherGlib::QEventDispatcherGlib	(	QEventDispatcherGlibPrivate &	dd,
		QObject *	parent
	)

protected

Definition at line 569 of file qeventdispatcher_glib.cpp.

Member Function Documentation

◆ interrupt()

void QEventDispatcherGlib::interrupt ( )

finalvirtual

Interrupts event dispatching.

The event dispatcher will return from processEvents() as soon as possible.

Implements QAbstractEventDispatcher.

Definition at line 548 of file qeventdispatcher_glib.cpp.

References wakeUp().

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◆ processEvents()

bool QEventDispatcherGlib::processEvents ( QEventLoop::ProcessEventsFlags flags )

overridevirtual

Processes pending events that match flags until there are no more events to process.

Returns true if an event was processed; otherwise returns false.

This function is especially useful if you have a long running operation, and want to show its progress without allowing user input by using the QEventLoop::ExcludeUserInputEvents flag.

If the QEventLoop::WaitForMoreEvents flag is set in flags, the behavior of this function is as follows:

\list

If events are available, this function returns after processing them.

If no events are available, this function will wait until more are available and return after processing newly available events.

\endlist

If the QEventLoop::WaitForMoreEvents flag is not set in flags, and no events are available, this function will return immediately.

{Note:} This function does not process events continuously; it returns after all available events are processed.

Implements QAbstractEventDispatcher.

Reimplemented in QPAEventDispatcherGlib.

Definition at line 371 of file qeventdispatcher_glib.cpp.

References QAbstractEventDispatcher::aboutToBlock(), QAbstractEventDispatcher::awake(), d, emit, QEventLoop::EventLoopExec, and QEventLoop::WaitForMoreEvents.

Referenced by QPAEventDispatcherGlib::processEvents().

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◆ registeredTimers()

QList< QEventDispatcherGlib::TimerInfo > QEventDispatcherGlib::registeredTimers ( QObject * object ) const

finalvirtual

Returns a list of registered timers for object.

The TimerInfo struct has timerId, interval, and timerType members.

See also: Qt::TimerType

Implements QAbstractEventDispatcher.

Definition at line 524 of file qeventdispatcher_glib.cpp.

References d, and qWarning.

◆ registerSocketNotifier()

void QEventDispatcherGlib::registerSocketNotifier ( QSocketNotifier * notifier )

finalvirtual

Registers notifier with the event loop.

Note: processEvents() only processes events queued before the function is called. Events that are posted while the function runs will be queued until a later round of event processing. This only applies to posted Qt events. For timers and system level events, the situation is unknown.

Subclasses must implement this method to tie a socket notifier into another event loop.

Implements QAbstractEventDispatcher.

Definition at line 402 of file qeventdispatcher_glib.cpp.

References QThread::currentThread(), d, QSocketNotifier::Exception, notifier, GPollFDWithQSocketNotifier::pollfd, Q_ASSERT, qWarning, QSocketNotifier::Read, QObject::thread(), and QSocketNotifier::Write.

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◆ registerTimer()

void QEventDispatcherGlib::registerTimer	(	int	timerId,
		qint64	interval,
		Qt::TimerType	timerType,
		QObject *	object
	)

finalvirtual

Register a timer with the specified timerId, interval, and timerType for the given object.

Implements QAbstractEventDispatcher.

Definition at line 475 of file qeventdispatcher_glib.cpp.

References QThread::currentThread(), d, qWarning, and QObject::thread().

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◆ remainingTime()

int QEventDispatcherGlib::remainingTime ( int timerId )

finalvirtual

Returns the remaining time in milliseconds with the given timerId.

If the timer is inactive, the returned value will be -1. If the timer is overdue, the returned value will be 0.

See also: Qt::TimerType

Implements QAbstractEventDispatcher.

Definition at line 535 of file qeventdispatcher_glib.cpp.

References d, and qWarning.

◆ unregisterSocketNotifier()

void QEventDispatcherGlib::unregisterSocketNotifier ( QSocketNotifier * notifier )

finalvirtual

Unregisters notifier from the event dispatcher.

Subclasses must reimplement this method to tie a socket notifier into another event loop. Reimplementations must call the base implementation.

Implements QAbstractEventDispatcher.

Definition at line 441 of file qeventdispatcher_glib.cpp.

References QThread::currentThread(), d, i, notifier, Q_ASSERT, qWarning, and QObject::thread().

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◆ unregisterTimer()

bool QEventDispatcherGlib::unregisterTimer ( int timerId )

finalvirtual

Unregisters the timer with the given timerId.

Returns true if successful; otherwise returns false.

See also: registerTimer(), unregisterTimers()

Implements QAbstractEventDispatcher.

Definition at line 492 of file qeventdispatcher_glib.cpp.

References QThread::currentThread(), d, qWarning, and QObject::thread().

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◆ unregisterTimers()

bool QEventDispatcherGlib::unregisterTimers ( QObject * object )

finalvirtual

Unregisters all the timers associated with the given object.

Returns true if all timers were successful removed; otherwise returns false.

See also: unregisterTimer(), registeredTimers()

Implements QAbstractEventDispatcher.

Definition at line 508 of file qeventdispatcher_glib.cpp.

References QThread::currentThread(), d, qWarning, and QObject::thread().

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◆ versionSupported()

bool QEventDispatcherGlib::versionSupported ( )

static

Definition at line 560 of file qeventdispatcher_glib.cpp.

Referenced by QThreadPrivate::createEventDispatcher(), QXcbEventDispatcher::createEventDispatcher(), and QtGenericUnixDispatcher::createUnixEventDispatcher().

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◆ wakeUp()

void QEventDispatcherGlib::wakeUp ( )

finalvirtual

\threadsafe

Wakes up the event loop.

\omit

FIXME - QTBUG-70229

On Unix and Glib event dispatchers, if the dispatcher is already awake when this function is called, it is ensured that the current iteration won't block waiting for more events, but will instead do another event loop iteration.

TODO - does other event dispatchers behave the same?

\endomit

See also: awake()

Implements QAbstractEventDispatcher.

Definition at line 553 of file qeventdispatcher_glib.cpp.

References d.

Referenced by interrupt().

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

qtbase/src/corelib/kernel/qeventdispatcher_glib_p.h
qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QEventDispatcherGlib() [1/3]

◆ QEventDispatcherGlib() [2/3]

◆ ~QEventDispatcherGlib()

◆ QEventDispatcherGlib() [3/3]

Member Function Documentation

◆ interrupt()

◆ processEvents()

◆ registeredTimers()

◆ registerSocketNotifier()

◆ registerTimer()

◆ remainingTime()

◆ unregisterSocketNotifier()

◆ unregisterTimer()

◆ unregisterTimers()

◆ versionSupported()

◆ wakeUp()

FIXME - QTBUG-70229

TODO - does other event dispatchers behave the same?