diff options
author | Alex Trotsenko <alex1973tr@gmail.com> | 2021-06-15 13:05:49 +0300 |
---|---|---|
committer | Alex Trotsenko <alex1973tr@gmail.com> | 2021-06-19 01:01:50 +0300 |
commit | fe6d84d96e67113846801803c3ba1f20b26e123f (patch) | |
tree | 1a2a69e71b4cc69f88e5ce2c413100d87de2d70c /src/corelib | |
parent | f10491a9afe7d6e11456b2c4b2c5f6eaf1594737 (diff) |
QEventDispatcherWin32: suppress old {FD_CLOSE|FD_CONNECT} notifications
As with other network events, we must also ignore these notifications
until WM_QT_ACTIVATENOTIFIERS message is received.
Fixes: QTBUG-82835
Pick-to: 6.2 6.1
Change-Id: I0740bf22e8d1cb0e8b4eba7fc1a27ffe669973ff
Reviewed-by: MÃ¥rten Nordheim <marten.nordheim@qt.io>
Diffstat (limited to 'src/corelib')
-rw-r--r-- | src/corelib/kernel/qeventdispatcher_win.cpp | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/src/corelib/kernel/qeventdispatcher_win.cpp b/src/corelib/kernel/qeventdispatcher_win.cpp index 80297feef1..28099cda9f 100644 --- a/src/corelib/kernel/qeventdispatcher_win.cpp +++ b/src/corelib/kernel/qeventdispatcher_win.cpp @@ -622,9 +622,16 @@ void QEventDispatcherWin32::registerSocketNotifier(QSocketNotifier *notifier) } sd.event |= event; } else { - // Disable the events which could be implicitly re-enabled. Next activation - // of socket notifiers will reset the mask. - d->active_fd.insert(sockfd, QSockFd(event, FD_READ | FD_ACCEPT | FD_WRITE | FD_OOB)); + // Although WSAAsyncSelect(..., 0), which is called from + // unregisterSocketNotifier(), immediately disables event message + // posting for the socket, it is possible that messages could be + // waiting in the application message queue even if the socket was + // closed. Also, some events could be implicitly re-enabled due + // to system calls. Ignore these superfluous events until all + // pending notifications have been suppressed. Next activation of + // socket notifiers will reset the mask. + d->active_fd.insert(sockfd, QSockFd(event, FD_READ | FD_CLOSE | FD_ACCEPT | FD_WRITE + | FD_CONNECT | FD_OOB)); } d->postActivateSocketNotifiers(); |