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  1. Qt
  2. QTBUG-103000

[Reg: 5.15->6.3.0] Q_EMIT does not wait for slots to return on FreeBSD

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P1: Critical P1: Critical
    • 6.2.5, 6.3.1, 6.4.0 Beta1
    • 6.3.0
    • Core: Event loop
    • None
    • 1808df9ce5 (qt/qtbase/dev) 96392889f9 (qt/qtbase/6.3) 96392889f9 (qt/tqtc-qtbase/6.3) 1808df9ce5 (qt/tqtc-qtbase/dev) 5890e27e67 (qt/tqtc-qtbase/6.2)

      We have noticed some unexpected behaviour with Qt 6.3.0 on FreeBSD.

      A call to Q_EMIT does not seem to wait for connected slots to finish before returning to the calling function. This differs from what can be observed with Qt 5.15.2, where the slots are completely executed before Q_EMIT returns. Find attached a MWE of the given situation.

      On macOS, Windows, and Linux the tests behave the same with Qt 5.15.2 and Qt 6.3.0.

      Is this to be expected and the misassumption is on our end?

        1. test_TestMySignal.cpp
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            thiago Thiago Macieira
            janmoeller Jan Möller
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              Created:
              Updated:
              Resolved:

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