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87535e4e43
qt5base-lts/tests
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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
..
auto QTimer: optimize single shot timers that cross thread 2023-04-20 20:23:37 +02:00
baseline Baseline tests: wait longer before taking a screen snapshot 2023-04-20 15:17:25 +02:00
benchmarks Long live QtFuture::makeReadyVoidFuture() and QtFuture::makeReadyValueFuture() 2023-04-05 13:38:15 +02:00
global tst_bic: Add linux-gcc-ia32 bic data for QtXml 2013-01-16 08:25:28 +01:00
libfuzzer Change the license of all CMakeLists.txt and *.cmake files to BSD 2022-08-23 23:58:42 +02:00
manual rhi: update manual test shaders 2023-04-20 11:34:41 +02:00
shared Inline the resetSystemLocale function 2023-01-12 19:54:13 +01:00
testserver Use SPDX license identifiers 2022-05-16 16:37:38 +02:00
CMakeLists.txt Rid of 'special case' markers 2023-04-13 18:30:58 +02:00
README Doc: Fix references to Qt Test 2013-01-30 01:35:06 +01:00

README 

This directory contains autotests and benchmarks based on Qt Test. In order
to run the autotests reliably, you need to configure a desktop to match the
test environment that these tests are written for.

Linux X11:

   * The user must be logged in to an active desktop; you can't run the
     autotests without a valid DISPLAY that allows X11 connections.

   * The tests are run against a KDE3 or KDE4 desktop.

   * Window manager uses "click to focus", and not "focus follows mouse". Many
     tests move the mouse cursor around and expect this to not affect focus
     and activation.

   * Disable "click to activate", i.e., when a window is opened, the window
     manager should automatically activate it (give it input focus) and not
     wait for the user to click the window.