QWinEventNotifier: reinterpret 'int signaledCount' as a 'bool signaled'

In fact, this variable can take only two values: 0 and 1. By
interpreting its value as boolean, we can use relaxed store operations
instead of atomic increments. This is safe, because it's guarded by
'activateEventNotifiersPosted' variable, which already provides a
release/acquire semantic.

Change-Id: If9adb7d022f1500ee7e8b61f336d8732f9b88d4c
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/corelib/kernel/qwineventnotifier_p.h b/src/corelib/kernel/qwineventnotifier_p.h
index 8bb2c3159a..f8f7cd8eff 100644
--- a/src/corelib/kernel/qwineventnotifier_p.h
+++ b/src/corelib/kernel/qwineventnotifier_p.h
@@ -74,7 +74,7 @@ public:
 
     HANDLE handleToEvent;
     HANDLE waitHandle = NULL;
-    QAtomicInt signaledCount;
+    QAtomicInt signaled;
     bool enabled;
 };