From: Eli Zaretskii <eliz@gnu.org>
To: Davis Herring <herring@lanl.gov>
Cc: ueno@gnu.org, emacs-devel@gnu.org
Subject: Re: Starting a subprocess in stopped state
Date: Mon, 08 May 2017 19:46:46 +0300 [thread overview]
Message-ID: <83bmr3cn49.fsf@gnu.org> (raw)
In-Reply-To: <32a9c3d5-2fb1-b6ab-2521-15fae40f002d@lanl.gov> (message from Davis Herring on Mon, 8 May 2017 10:41:28 -0600)
> From: Davis Herring <herring@lanl.gov>
> Date: Mon, 8 May 2017 10:41:28 -0600
> Cc: Daiki Ueno <ueno@gnu.org>
>
> > Also, not reading the Emacs end of the pipe, while the process runs is
> > probably going to get is to undefined behavior in some situations,
> > especially with multithreaded processes.
>
> I don't think it's undefined behavior -- you may just hang (one or more
> threads of) the subprocess.
Well, that's what I meant by "undefined" -- the exact result depends
on factors beyond our control, some of them depend on the program
being run, some on the OS and its configuration (like the size of the
pipe buffer).
prev parent reply other threads:[~2017-05-08 16:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-02 19:04 Starting a subprocess in stopped state Eli Zaretskii
2017-05-05 7:29 ` Eli Zaretskii
2017-05-06 5:42 ` Thien-Thi Nguyen
2017-05-06 7:58 ` Eli Zaretskii
2017-05-07 12:24 ` Philipp Stephani
2017-05-07 17:16 ` Eli Zaretskii
2017-05-07 17:25 ` Paul Eggert
2017-05-07 17:57 ` Eli Zaretskii
2017-05-07 18:05 ` Andreas Schwab
2017-05-08 16:41 ` Davis Herring
2017-05-08 16:46 ` Eli Zaretskii [this message]
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