diff options
| -rw-r--r-- | src/corelib/kernel/qtimer.cpp | 9 | ||||
| -rw-r--r-- | tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp | 24 |
2 files changed, 26 insertions, 7 deletions
diff --git a/src/corelib/kernel/qtimer.cpp b/src/corelib/kernel/qtimer.cpp index b9109a96aa..af9a1be6ab 100644 --- a/src/corelib/kernel/qtimer.cpp +++ b/src/corelib/kernel/qtimer.cpp @@ -278,15 +278,10 @@ QSingleShotTimer::QSingleShotTimer(int msec, Qt::TimerType timerType, const QObj { timerId = startTimer(msec, timerType); if (r && thread() != r->thread()) { - // We need the invocation to happen in the receiver object's thread. - // So, move QSingleShotTimer to the correct thread. Before that occurs, we - // shall remove the parent from the object. + // Avoid leaking the QSingleShotTimer instance in case the application exits before the timer fires + connect(QCoreApplication::instance(), &QCoreApplication::aboutToQuit, this, &QObject::deleteLater); setParent(0); moveToThread(r->thread()); - - // Given we're also parentless now, we should take defence against leaks - // in case the application quits before we expire. - connect(QCoreApplication::instance(), &QCoreApplication::aboutToQuit, this, &QObject::deleteLater); } } diff --git a/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp b/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp index 1dc358bd97..b34a3a6beb 100644 --- a/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp +++ b/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp @@ -72,6 +72,7 @@ private slots: void singleShotStaticFunctionZeroTimeout(); void recurseOnTimeoutAndStopTimer(); void singleShotToFunctors(); + void crossThreadSingleShotToFunctor(); void dontBlockEvents(); void postedEventsShouldNotStarveTimers(); @@ -877,5 +878,28 @@ void tst_QTimer::postedEventsShouldNotStarveTimers() QVERIFY(timerHelper.count > 5); } +struct DummyFunctor { + void operator()() {} +}; + +void tst_QTimer::crossThreadSingleShotToFunctor() +{ + // We're testing for crashes here, so the test simply running to + // completion is considered a success + QThread t; + t.start(); + + QObject* o = new QObject(); + o->moveToThread(&t); + + for (int i = 0; i < 10000; i++) { + QTimer::singleShot(0, o, DummyFunctor()); + } + + t.quit(); + t.wait(); + delete o; +} + QTEST_MAIN(tst_QTimer) #include "tst_qtimer.moc" |