From b5f2bf1a71d926b9bb04101b49a11fd641aad14f Mon Sep 17 00:00:00 2001
From: Joerg Bornemann <joerg.bornemann@qt.io>
Date: Fri, 6 Oct 2017 13:09:57 +0200
Subject: Fix QWinEventNotifier for auto-reset events

Auto-reset events are automatically reset to non-signaled when we get
notified about the signaled state. This implies that we cannot check the
event state again in activateEventNotifiers. Instead, store the signaled
state in a QAtomicInt and test and decrement that.

This amends commit 85403d0a.

Task-number: QTBUG-63555
Change-Id: I0adee3d2929783f98d91060f9106c8b5266d72fa
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
---
 src/corelib/kernel/qwineventnotifier_p.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/corelib/kernel/qwineventnotifier_p.h')

diff --git a/src/corelib/kernel/qwineventnotifier_p.h b/src/corelib/kernel/qwineventnotifier_p.h
index bddeaaf134..8bb2c3159a 100644
--- a/src/corelib/kernel/qwineventnotifier_p.h
+++ b/src/corelib/kernel/qwineventnotifier_p.h
@@ -54,6 +54,7 @@
 #include "qwineventnotifier.h"
 
 #include <private/qobject_p.h>
+#include <QtCore/qatomic.h>
 #include <QtCore/qt_windows.h>
 
 QT_BEGIN_NAMESPACE
@@ -73,6 +74,7 @@ public:
 
     HANDLE handleToEvent;
     HANDLE waitHandle = NULL;
+    QAtomicInt signaledCount;
     bool enabled;
 };
 
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