From a21ffd44b3a13a9ef64a56e67f6e267292f0a8e2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tor=20Arne=20Vestb=C3=B8?= <tor.arne.vestbo@qt.io>
Date: Thu, 3 Nov 2016 16:14:07 +0100
Subject: [PATCH] Use async delivery when flushing events from secondary
 threads

Commit 33d748bb8 (Allow granular synchronous and asynchronous delivery of
QPA events) replaced a postWindowSystemEvent() with a SynchronousDelivery,
which was completely broken, as the delivery is already guarded by a mutex
wait.

Change-Id: I929fddc4e3403f943e8fe0677b5a46bf58419575
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@qt.io>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
---
 src/gui/kernel/qwindowsysteminterface.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gui/kernel/qwindowsysteminterface.cpp b/src/gui/kernel/qwindowsysteminterface.cpp
index 5dd525f315..667304859e 100644
--- a/src/gui/kernel/qwindowsysteminterface.cpp
+++ b/src/gui/kernel/qwindowsysteminterface.cpp
@@ -682,7 +682,7 @@ bool QWindowSystemInterface::flushWindowSystemEvents(QEventLoop::ProcessEventsFl
         // deferredFlushWindowSystemEvents from the Gui thread.
         QMutexLocker locker(&QWindowSystemInterfacePrivate::flushEventMutex);
         QWindowSystemInterfacePrivate::FlushEventsEvent *e = new QWindowSystemInterfacePrivate::FlushEventsEvent(flags);
-        QWindowSystemInterfacePrivate::handleWindowSystemEvent<SynchronousDelivery>(e);
+        QWindowSystemInterfacePrivate::handleWindowSystemEvent<AsynchronousDelivery>(e);
         QWindowSystemInterfacePrivate::eventsFlushed.wait(&QWindowSystemInterfacePrivate::flushEventMutex);
     } else {
         sendWindowSystemEvents(flags);