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[sc-dev] [bug] in SerialPort


I just wanted to mention that I just came across a bug in SerialPort,
probably related to not closing a port correctly before reopening it
or maybe losing the port (disconnecting the hardware) and not cleaning
up when this happens.
This results in the cpu usage of sclang going to a 100%.

This happens at least on Linux, and I will be looking into it,
sometime after today.
It may be solved by a check if the devicenode is still there and
closing it if it is not (I did a similar fix a while ago for LID), if
that is the case, then I'll also add a hook for a closeAction.


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