I've now come across two places in my code where this is an issue (at various
states of initializing)
In a QObject who is exported to QML, and is instantiated just below the
top-level Window:
// in the object's open() method:
if (!_serialPort.open(QIODevice::ReadWrite))
qApp->quit(); // won't actually quit - no use if I can't use the serial
port. (because another instance is using it)
Then I have a ready() signal that is emitted when the serial device is ready,
however the QML, when I hook onReady, it never gets called. I have to use a
Component.onCompleted at the top level. However, there is async serial I/O
happening, so there is at least one event loop?
What can I do to make sure these things work?
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