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serial communication in separate process

hari@hari
22 Posts
#1 · December 19, 2019, 11:30 pm

I was wondering why the official python code does use a separate process (usbutil.py) and a socket to read/write to USB from the main application? I'd be tempted to just do the serial read/write in a python thread. Or do I miss something here?

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Pietro@pietro-mandurino
352 Posts
#2 · December 20, 2019, 6:44 pm
Quote from hari on December 19, 2019, 11:30 pm

I was wondering why the official python code does use a separate process (usbutil.py) and a socket to read/write to USB from the main application? I'd be tempted to just do the serial read/write in a python thread. Or do I miss something here?

Hello Harald

Yes you could do like you suggest, we just selected this option is because we have open protocol etc. The standalone usbutil.py can be used to connect the board without embedding in the software. So this part can be just called by different main software.

For example in the online game the main routine is different but they call the same usbtool.py Generally speaking this can be called for example by different sw maybe checkers or other. This is ratio behind.

All the best

Pietro

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Last edited on December 20, 2019, 6:44 pm by Pietro
hari@hari
22 Posts
Topic Author
#3 · December 21, 2019, 8:54 am

Hi Pietro,

thanks for explaining the reasoning. I did ask because I was considering making the port configurable via UCI setoption, and error out if the port doesn't work properly before returning "readyok" as engine. I thought it might be easier to catch and handle any serial port related errors easier when all is handled in one process.

Anyway, I've written a UCI variant with a built in serial thread and will give that some testing.

br Hari

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