diff options
Diffstat (limited to 'src/corelib/kernel/qeventdispatcher_win.cpp')
-rw-r--r-- | src/corelib/kernel/qeventdispatcher_win.cpp | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/src/corelib/kernel/qeventdispatcher_win.cpp b/src/corelib/kernel/qeventdispatcher_win.cpp index bbd442d570..330870f219 100644 --- a/src/corelib/kernel/qeventdispatcher_win.cpp +++ b/src/corelib/kernel/qeventdispatcher_win.cpp @@ -905,6 +905,7 @@ bool QEventDispatcherWin32::registerEventNotifier(QWinEventNotifier *notifier) return true; d->winEventNotifierList.append(notifier); + d->winEventNotifierListModified = true; if (!d->winEventNotifierActivatedEvent) d->winEventNotifierActivatedEvent = CreateEvent(0, TRUE, FALSE, nullptr); @@ -928,6 +929,7 @@ void QEventDispatcherWin32::unregisterEventNotifier(QWinEventNotifier *notifier) if (i == -1) return; d->winEventNotifierList.takeAt(i); + d->winEventNotifierListModified = true; QWinEventNotifierPrivate *nd = QWinEventNotifierPrivate::get(notifier); if (nd->waitHandle) nd->unregisterWaitObject(); @@ -938,16 +940,19 @@ void QEventDispatcherWin32::activateEventNotifiers() Q_D(QEventDispatcherWin32); ResetEvent(d->winEventNotifierActivatedEvent); - // Iterate backwards, because the notifier might remove itself on activate(). - for (int i = d->winEventNotifierList.count(); --i >= 0;) { - QWinEventNotifier *notifier = d->winEventNotifierList.at(i); - QWinEventNotifierPrivate *nd = QWinEventNotifierPrivate::get(notifier); - if (nd->signaledCount.load() != 0) { - --nd->signaledCount; - nd->unregisterWaitObject(); - d->activateEventNotifier(notifier); + // Activate signaled notifiers. Our winEventNotifierList can be modified in activation slots. + do { + d->winEventNotifierListModified = false; + for (int i = 0; i < d->winEventNotifierList.count(); ++i) { + QWinEventNotifier *notifier = d->winEventNotifierList.at(i); + QWinEventNotifierPrivate *nd = QWinEventNotifierPrivate::get(notifier); + if (nd->signaledCount.load() != 0) { + --nd->signaledCount; + nd->unregisterWaitObject(); + d->activateEventNotifier(notifier); + } } - } + } while (d->winEventNotifierListModified); // Re-register the remaining activated notifiers. for (int i = 0; i < d->winEventNotifierList.count(); ++i) { |