closing serial port causes close eventloop and shutdown

[dafik]

I have several gpio listeners
when call serial.close() gpio listeners are closed
INFO com.diozero.internal.provider.builtin.gpio.GpioChip::eventLoop - Event loop finished

probably by this :
raise(SIGINT);
in native utils
https://github.com/mattjlewis/diozero/blob/main/system-utils-native/src/main/c/com_diozero_internal_provider_builtin_serial_NativeSerialDevice.c#L381

having serial port open all time causes 100% cpu utilisation.

[mattjlewis]

Will take a look.

[dafik]

any progess on this ?

[mattjlewis]

Apologies - not a simple fix - the current implementation settled on a blocking read to replicate behaviour similar to Java I/O. I added the SIGINT to interrupt any remaining blocking reads but clearly didn't fully think through the implications. I suspect I will need to switch to an event based read model under the hood to maintain the same exposed API in SerialDevice which will be a bit more complicated.