378e26dd14
There was a small amount of time between the last readDatagram() call and disabling a read notifier in case the socket had a pending datagram. If a new datagram arrived in this period, this qualified as absence of a datagram reader. Do not change the read notifier state because it is disabled on canReadNotification() entry and always enabled by the datagram reader. Thanks to Peter Seiderer, who investigated the same: "Querying hasPendingDatagrams() for enabling/disabling setReadNotificationEnabled() is racy (a new datagram could arrive after readDatagam() is called and before hasPendingDatagrams() is checked). But for unbuffered sockets the ReadNotification is already disabled before the readReady signal is emitted and should be re-enabled when calling read() or readDatagram() from the user." However, this patch does not completely solve the problem under Windows, as the socket notifier may emit spurious notifications. Task-number: QTBUG-46552 Change-Id: If7295d53ae2c788c39e86303502f38135c4d6180 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> |
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| .. | ||
| clientserver | ||
| test | ||
| udpServer | ||
| .gitignore | ||
| qudpsocket.pro | ||
| tst_qudpsocket.cpp | ||