Volker Hilsheimer 87535e4e43 QTimer: optimize single shot timers that cross thread ... Amend 4d90c4e74a by clarifying why moving the QSingleShotObject to the receiver's thread is a good idea. Move that logic into a separate function and use that also for the string-based connection. Optimize the implementation by delaying the timer creation until after we have moved the QSingleShotTimer object to the target thread, using a queued metacall if needed to create the timer. This avoids the creation of the timer in the wrong thread and then the recreation of the timer in the new thread when QObject handles QEvent::ThreadChange. To avoid that the timer is created when it has already expired in real time, use a deadline timer and fire timeout immediately when it has expired by the time we get the metacall. Since the timerId might now not be initialized in the constructor, initialize it to -1. Augment the crossThreadSingleShotToFunctor test function by deliberately not starting the thread until the deadline expired. [ChangeLog][Core][QTimer] Single-shot timers with a string-based connection are now started in the receiver's thread, not in the thread that creates the timer. Task-number: QTBUG-112162 Change-Id: I3fc94c34c21d9f644da41a2e4c2da479980b8580 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>		2023-04-20 20:23:37 +02:00
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animation	tests: Remove remains of qmake conversion from CMakeLists.txt files	2023-02-17 21:56:49 +01:00
global	Short live q20::to_address!	2023-03-31 13:10:12 +01:00
io	Use LANGUAGE OBJCXX rather than COMPILE_FLAGS "-x objective-c++"	2023-04-13 14:36:26 +02:00
ipc	tests: Remove remains of qmake conversion from CMakeLists.txt files	2023-02-17 21:56:49 +01:00
itemmodels	Remove unused variables	2023-04-19 12:55:02 +02:00
kernel	QTimer: optimize single shot timers that cross thread	2023-04-20 20:23:37 +02:00
mimetypes	mimetypes/: port to qsizetype	2023-04-15 17:21:10 +02:00
platform	tests: Remove remains of qmake conversion from CMakeLists.txt files	2023-02-17 21:56:49 +01:00
plugin	QPluginLoader: don't instantiante multiple, identical instances	2023-04-05 00:29:16 -07:00
serialization	QXmlStream: run the test suite from a method other than initTestCase()	2023-04-08 13:23:06 +02:00
text	tst_qstringapisymmetry: silence a GCC warning	2023-04-08 13:21:24 +02:00
thread	Rid of 'special case' markers	2023-04-13 18:30:58 +02:00
time	tst_QDateTime: cope with MET masquerading as CET	2023-04-20 15:17:27 +02:00
tools	Remove unused variables	2023-04-19 12:55:02 +02:00
CMakeLists.txt	tests: Remove remains of qmake conversion from CMakeLists.txt files	2023-02-17 21:56:49 +01:00