From: Anton Khirnov <anton@khirnov.net>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH 2/5] lavf/demux: treat EAGAIN as REDO unless AVFMT_FLAG_NONBLOCK is set
Date: Mon, 14 Nov 2022 17:17:36 +0100
Message-ID: <166844265631.20155.948969597059127549@lain.khirnov.net> (raw)
In-Reply-To: <Y3I3Q8UN3YP8UE3E@phare.normalesup.org>
Quoting Nicolas George (2022-11-14 13:40:35)
> Anton Khirnov (12022-11-14):
> > In what specific case would this supposed busy wait happen and why is it
> > wrong?
>
> See my mail from 9 Nov 2022 13:42:24 +0100 for explanations about the
> semantic of EAGAIN.
You wrote a whole lot of text and I don't see how any of it applies to
this patch.
The standard convention everywhere is that IO may return EAGAIN in
non-blocking mode and blocks otherwise. And that is exactly what this
patch implements.
--
Anton Khirnov
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next prev parent reply other threads:[~2022-11-14 16:17 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-08 11:25 [FFmpeg-devel] [PATCH 1/5] lavf/rtpdec_asf: set AVFMT_FLAG_NONBLOCK Anton Khirnov
2022-11-08 11:25 ` [FFmpeg-devel] [PATCH 2/5] lavf/demux: treat EAGAIN as REDO unless AVFMT_FLAG_NONBLOCK is set Anton Khirnov
2022-11-10 12:28 ` Michael Niedermayer
2022-11-10 12:31 ` Anton Khirnov
2022-11-10 12:52 ` Paul B Mahol
2022-11-10 13:33 ` Anton Khirnov
2022-11-10 19:52 ` Michael Niedermayer
2022-11-14 9:23 ` Anton Khirnov
2022-11-14 10:44 ` Nicolas George
2022-11-14 11:00 ` Anton Khirnov
2022-11-14 11:05 ` Nicolas George
2022-11-14 11:12 ` Anton Khirnov
2022-11-14 12:40 ` Nicolas George
2022-11-14 16:17 ` Anton Khirnov [this message]
2022-11-14 16:22 ` Nicolas George
2022-11-08 11:25 ` [FFmpeg-devel] [PATCH 3/5] lavf: replace FFERROR_REDO with AVERROR(EAGAIN) Anton Khirnov
2022-11-08 12:54 ` Nicolas George
2022-11-08 14:07 ` Anton Khirnov
2022-11-08 14:15 ` Nicolas George
2022-11-08 16:39 ` Anton Khirnov
2022-11-09 8:21 ` Nicolas George
2022-11-09 8:44 ` Paul B Mahol
2022-11-09 9:21 ` Nicolas George
2022-11-09 9:23 ` Paul B Mahol
2022-11-09 9:29 ` Nicolas George
2022-11-09 9:31 ` Anton Khirnov
2022-11-09 9:38 ` Nicolas George
2022-11-09 10:17 ` Anton Khirnov
2022-11-09 10:41 ` Nicolas George
2022-11-09 11:53 ` Anton Khirnov
2022-11-09 12:42 ` Nicolas George
2022-11-08 11:25 ` [FFmpeg-devel] [PATCH 4/5] fftools/ffmpeg_demux: do not set AVFMT_FLAG_NONBLOCK Anton Khirnov
2022-11-08 11:25 ` [FFmpeg-devel] [PATCH 5/5] fftools/ffmpeg: make demuxing with one file always blocking Anton Khirnov
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