QtRuntimeScheduler Class Reference

Qt event-loop implementation; no callback runs inside schedule(). More...

#include <QtRuntimeScheduler.h>

Inheritance diagram for QtRuntimeScheduler:

Collaboration diagram for QtRuntimeScheduler:

Public Member Functions
	QtRuntimeScheduler (QObject *parent=nullptr)
	~QtRuntimeScheduler () override
quint64	nowUs () const override
TaskId	schedule (QObject *context, std::chrono::microseconds delay, Callback callback) override
void	cancel (TaskId task) override
	Cancellation from another thread is ignored. All other access and destruction must occur on the owner thread.
Public Member Functions inherited from RuntimeScheduler
	RuntimeScheduler (QObject *parent=nullptr)
	~RuntimeScheduler () override
qint64	nowMs () const

Protected Member Functions
void	timerEvent (QTimerEvent *event) override
Protected Member Functions inherited from RuntimeScheduler
bool	_canSchedule (QObject *context, std::chrono::microseconds delay, const Callback &callback) const
bool	_isCurrentThread () const

Additional Inherited Members
Public Types inherited from RuntimeScheduler
using	TaskId = quint64
using	Callback = std::function< void()>
Static Public Member Functions inherited from RuntimeScheduler
static RuntimeScheduler *	orDefault (RuntimeScheduler *scheduler, QObject *owner)
	scheduler, or a QtRuntimeScheduler owned by owner when it is null.
Static Public Attributes inherited from RuntimeScheduler
static constexpr auto	MAX_DELAY

Detailed Description

Qt event-loop implementation; no callback runs inside schedule().

Definition at line 9 of file QtRuntimeScheduler.h.

Constructor & Destructor Documentation

QtRuntimeScheduler()

QtRuntimeScheduler::QtRuntimeScheduler ( QObject *  parent = nullptr )

explicit

Definition at line 13 of file QtRuntimeScheduler.cc.

~QtRuntimeScheduler()

QtRuntimeScheduler::~QtRuntimeScheduler ( )

override

Definition at line 18 of file QtRuntimeScheduler.cc.

Member Function Documentation

cancel()

void QtRuntimeScheduler::cancel ( TaskId  task )

overridevirtual

Cancellation from another thread is ignored. All other access and destruction must occur on the owner thread.

Implements RuntimeScheduler.

Definition at line 45 of file QtRuntimeScheduler.cc.

References RuntimeScheduler::_isCurrentThread().

Referenced by schedule().

nowUs()

quint64 QtRuntimeScheduler::nowUs ( ) const

overridevirtual

Implements RuntimeScheduler.

Definition at line 23 of file QtRuntimeScheduler.cc.

References MonotonicClock::nowUs().

schedule()

RuntimeScheduler::TaskId QtRuntimeScheduler::schedule ( QObject *  context, std::chrono::microseconds  delay, Callback  callback  )

overridevirtual

Nonpositive delays defer until the next dispatch. Context must share this object's thread. Calls from other threads and delays above MAX_DELAY are rejected with task ID zero. Destroying context suppresses its callback. No ordering is promised for equal deadlines.

Implements RuntimeScheduler.

Definition at line 28 of file QtRuntimeScheduler.cc.

References RuntimeScheduler::_canSchedule(), and cancel().

timerEvent()

void QtRuntimeScheduler::timerEvent ( QTimerEvent *  event )

overrideprotected

Definition at line 59 of file QtRuntimeScheduler.cc.

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

• src/Utilities/Timing/QtRuntimeScheduler.h
• src/Utilities/Timing/QtRuntimeScheduler.cc