Improve performance of socket notifications on WinCE

QEventDispatcherWin32 on WinCE uses a separate low-priority thread to
monitor sockets activity, so changing the state of notifiers occurs
asynchronously to the main thread. This makes a message-based socket
activation mechanism ineffective.

To avoid timeouts in the helper thread, update the thread's pool
directly from the (un)registerSocketNotifier() functions.

Change-Id: I702c32d69dce09323ca5f65dc2ee1407842e41ef
Reviewed-by: Tobias Koenig <tobias.koenig@kdab.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/corelib/kernel/qeventdispatcher_win_p.h b/src/corelib/kernel/qeventdispatcher_win_p.h
index 222562dfce..989bac3904 100644
--- a/src/corelib/kernel/qeventdispatcher_win_p.h
+++ b/src/corelib/kernel/qeventdispatcher_win_p.h
@@ -179,9 +179,11 @@ public:
     QSNDict sn_write;
     QSNDict sn_except;
     QSFDict active_fd;
+#ifndef Q_OS_WINCE
     bool activateNotifiersPosted;
-    void doWsaAsyncSelect(int socket, long event);
     void postActivateSocketNotifiers();
+#endif
+    void doWsaAsyncSelect(int socket, long event);
 
     QList<QWinEventNotifier *> winEventNotifierList;
     void activateEventNotifier(QWinEventNotifier * wen);