Avoid timer starvation during high posted event activity

Similar to commit bc01bb10da23d0d2308cf02a16947be836bc9a21, we need to
avoid starvation of the idle time source by forcing a single, normal
priority pass after processing posted events.

Reviewed-by: ogoffart
Task-number: QT-3467

1 files changed, 3 insertions, 0 deletions

diff --git a/src/corelib/kernel/qeventdispatcher_glib.cpp b/src/corelib/kernel/qeventdispatcher_glib.cpp
index fd36be4..9c1c827 100644
--- a/src/corelib/kernel/qeventdispatcher_glib.cpp
+++ b/src/corelib/kernel/qeventdispatcher_glib.cpp
@@ -246,6 +246,7 @@ struct GPostEventSource
     GSource source;
     QAtomicInt serialNumber;
     int lastSerialNumber;
+    QEventDispatcherGlibPrivate *d;
 };
 
 static gboolean postEventSourcePrepare(GSource *s, gint *timeout)
@@ -274,6 +275,7 @@ static gboolean postEventSourceDispatch(GSource *s, GSourceFunc, gpointer)
     GPostEventSource *source = reinterpret_cast<GPostEventSource *>(s);
     source->lastSerialNumber = source->serialNumber;
     QCoreApplication::sendPostedEvents();
+    source->d->runTimersOnceWithNormalPriority();
     return true; // i dunno, george...
 }
 
@@ -313,6 +315,7 @@ QEventDispatcherGlibPrivate::QEventDispatcherGlibPrivate(GMainContext *context)
     postEventSource = reinterpret_cast<GPostEventSource *>(g_source_new(&postEventSourceFuncs,
                                                                         sizeof(GPostEventSource)));
     postEventSource->serialNumber = 1;
+    postEventSource->d = this;
     g_source_set_can_recurse(&postEventSource->source, true);
     g_source_attach(&postEventSource->source, mainContext);