Re: [libgpiod][PATCH] libgpiod: Allow to gracefully exit from a wait event

["Adrien Zinger" <zinger.ad@xxxxxxxxx>]

> This sounds like an oddly specific API... I wonder, why does
> gpiod_line_request_get_fd [1] + doing the polling in your code
> not work
> for you? Since you already got a file descriptor for the
> notification that seems like little extra work. Or
> did you consider that but find
> it too verbose?

Until now it works like you said and it's not so verbose.

Actually I had the issue some weeks ago. And before digging inside the
library I have searched in the documentation and also asked on
stackoverflow [1] for a suggestion. Despite everything me and other
developers were not able to guess how to cancel a wait event from
another thread, without reading the code of the library. I thought
that it could be a good thing to provide that feature.

[1]
https://stackoverflow.com/questions/77222869/how-to-gracefully-cancel-gpiod-line-event-wait

Best regards,
Adrien