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  1. Qt
  2. QTBUG-49494

Check for qApp existence before moving thread

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Details

    • Bug
    • Resolution: Duplicate
    • Not Evaluated
    • 5.4.2, 5.5.0
    • 5.4.1
    • GUI: OpenGL
    • None
    • edd555425a08f9e074f0a4d9333862636ccaae8d

    Description

      A check is needed as follows:

      qtbasesrcopenglqgl.cpp:162
      
Q_GLOBAL_STATIC(QGLSignalProxy, theSignalProxy)
QGLSignalProxy *QGLSignalProxy::instance()
{
    QGLSignalProxy *proxy = theSignalProxy();
    if (proxy && qApp && proxy->thread() != qApp->thread()) {
        if (proxy->thread() == QThread::currentThread())
            proxy->moveToThread(qApp->thread());
    }

      Please note the extra "&& qApp". Without this, we see a crash on exiting the app. This has been fixed in 5.5.0.

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          is replaced by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-44621 QGLContext sharing with the Qt global context causes Qt to crash on application shutdown

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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              peppe Giuseppe D'Angelo
              michael.howard@am.sony.com Michael Howard
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              Dates

                Created:
                Updated:
                Resolved:

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