diff options
Diffstat (limited to 'src/gui/kernel/qeventdispatcher_mac.mm')
| -rw-r--r-- | src/gui/kernel/qeventdispatcher_mac.mm | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/gui/kernel/qeventdispatcher_mac.mm b/src/gui/kernel/qeventdispatcher_mac.mm index 99a1fc11a1..cde0c4748e 100644 --- a/src/gui/kernel/qeventdispatcher_mac.mm +++ b/src/gui/kernel/qeventdispatcher_mac.mm @@ -264,12 +264,16 @@ void qt_mac_socket_callback(CFSocketRef s, CFSocketCallBackType callbackType, CF int nativeSocket = CFSocketGetNative(s); MacSocketInfo *socketInfo = eventDispatcher->macSockets.value(nativeSocket); QEvent notifierEvent(QEvent::SockAct); + + // There is a race condition that happen where we disable the notifier and + // the kernel still has a notification to pass on. We then get this + // notification after we've successfully disabled the CFSocket, but our Qt + // notifier is now gone. The upshot is we have to check the notifier + // everytime. if (callbackType == kCFSocketReadCallBack) { - Q_ASSERT(socketInfo->readNotifier); - QApplication::sendEvent(socketInfo->readNotifier, ¬ifierEvent); + if (socketInfo->readNotifier) + QApplication::sendEvent(socketInfo->readNotifier, ¬ifierEvent); } else if (callbackType == kCFSocketWriteCallBack) { - // ### Bug in Apple socket notifiers seems to send write even - // ### after the notifier has been disabled, need to investigate further. if (socketInfo->writeNotifier) QApplication::sendEvent(socketInfo->writeNotifier, ¬ifierEvent); } |