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  1. Qt
  2. QTBUG-58214

QUdpSocket still broken - readyRead() stops firing

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    • 979c8b746b56b8e68acf47b5af2eecf834043b50 124b9a6ff89da8be83a256135ec6c4d0603e9a6f

    Description

      With attached test program QUdpSocket::readyRead() signal stops firing while new UDP packets are reveived (and QUdpSocket::hasPendingDatagrams() returns true).

      With Qt5.7.1 there are additional spurious readyRead() signals (QUdpSocket::pendingDatagramSize() call in the connected slot returns -1).

      I believe the problem is an incomplete fix for QTBUG-46552, see [1] for description (and legacy suggested fix).

      [1] https://codereview.qt-project.org/114845

      Attachments

        1. test_qudpsocket_002.cpp
          8 kB
        2. test_qudpsocket_003.cpp
          9 kB
        3. UDPDebug.txt
          1.41 MB

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-62083 Windows: WM_USER to a different HWND in the message queue does not turn on the socket notifiers again

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          For Gerrit Dashboard: QTBUG-58214
          # Subject Branch Project Status CR V
          182525,2 Fix QAbstractSocketPrivate::canReadNotification() for QUdpSockets 5.7 qt/qtbase Status: ABANDONED -1 0
          183032,8 Improve suppression of spurious socket notifications under Windows 5.9 qt/qtbase Status: MERGED -2 0

          Activity

            People

              tpochep Timur Pocheptsov
              p_seiderer Peter Seiderer
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              Dates

                Created:
                Updated:
                Resolved:

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