From: "Adrien Zinger" <zinger.ad@gmail.com>
To: "Erik Schilling" <erik.schilling@linaro.org>,
<linux-gpio@vger.kernel.org>
Subject: Re: [libgpiod][PATCH] libgpiod: Allow to gracefully exit from a wait event
Date: Tue, 14 Nov 2023 11:09:56 +0100 [thread overview]
Message-ID: <CWYGBJ6SZ2UH.2S7NPDBHCGPIL@Kalray-lp232> (raw)
In-Reply-To: <CWXV8TMDNK59.WFY7K99MD7KQ@ablu-work>
> 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
next prev parent reply other threads:[~2023-11-14 10:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-13 14:32 [libgpiod][PATCH] libgpiod: Allow to gracefully exit from a wait event Adrien Zinger
2023-11-13 17:39 ` Erik Schilling
2023-11-14 10:09 ` Adrien Zinger [this message]
2023-11-15 17:10 ` Bartosz Golaszewski
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