From: Lars Ingebrigtsen <larsi@gnus.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: `message' not outputting the newline "atomically"
Date: Wed, 19 Jun 2019 17:47:05 +0200 [thread overview]
Message-ID: <m3k1dh4lxi.fsf@gnus.org> (raw)
In-Reply-To: <83y31xr3aa.fsf@gnu.org> (Eli Zaretskii's message of "Wed, 19 Jun 2019 18:41:17 +0300")
Eli Zaretskii <eliz@gnu.org> writes:
> I agree with Andreas: we aren't. It's just sheer luck if this happens
> (probably because the time window for mixing output is small).
No, we are on all Unix-like OS-es I'm familiar with, and certainly on
GNU/Linux: If you output data that's less than PIPE_BUF in length, a
write(2) call will never interleave the data.
If you're using internal buffering of some kind, then you can get all
kinds of funny interleaving, but this is the reason that the output from
Makefiles never step on each others' lines, no matter how many gccs you
run in parallel.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
next prev parent reply other threads:[~2019-06-19 15:47 UTC|newest]
Thread overview: 108+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-19 14:12 `message' not outputting the newline "atomically" Lars Ingebrigtsen
2019-06-19 14:28 ` Andreas Schwab
2019-06-19 15:41 ` Eli Zaretskii
2019-06-19 15:47 ` Lars Ingebrigtsen [this message]
2019-06-19 16:05 ` Andreas Schwab
2019-06-19 23:22 ` Paul Eggert
2019-06-20 2:35 ` Eli Zaretskii
2019-06-20 7:47 ` Paul Eggert
2019-06-20 9:35 ` Lars Ingebrigtsen
2019-06-20 12:52 ` Eli Zaretskii
2019-06-20 12:55 ` Lars Ingebrigtsen
2019-06-20 13:13 ` Eli Zaretskii
2019-06-20 14:05 ` Andreas Schwab
2019-06-20 16:26 ` Paul Eggert
2019-06-20 16:45 ` Eli Zaretskii
2019-06-20 17:41 ` Paul Eggert
2019-06-20 18:06 ` Eli Zaretskii
2019-06-20 19:33 ` Paul Eggert
2019-06-21 5:46 ` Eli Zaretskii
2019-06-21 6:06 ` Eli Zaretskii
2019-06-22 0:20 ` Paul Eggert
2019-06-22 7:32 ` Eli Zaretskii
2019-06-22 19:14 ` Paul Eggert
2019-06-23 2:25 ` Eli Zaretskii
2019-06-23 8:34 ` Paul Eggert
2019-06-23 11:37 ` Lars Ingebrigtsen
2019-06-23 14:47 ` Eli Zaretskii
2019-06-23 17:32 ` Paul Eggert
2019-06-23 18:28 ` Eli Zaretskii
2019-06-23 12:53 ` Stefan Monnier
2019-06-23 14:51 ` Eli Zaretskii
2019-06-24 4:09 ` Stefan Monnier
2019-06-22 8:26 ` Andreas Schwab
2019-06-22 18:53 ` Paul Eggert
2019-06-22 19:00 ` Eli Zaretskii
2019-06-22 19:15 ` Paul Eggert
2019-06-22 19:48 ` Andreas Schwab
2019-06-20 13:32 ` Stefan Monnier
2019-06-20 16:28 ` Paul Eggert
2019-06-23 18:59 ` Daniele Nicolodi
2019-06-23 20:34 ` Paul Eggert
2019-06-23 20:42 ` Lars Ingebrigtsen
2019-06-23 21:00 ` Paul Eggert
2019-06-23 22:18 ` Lars Ingebrigtsen
2019-06-23 20:48 ` Daniele Nicolodi
2019-06-24 2:32 ` Eli Zaretskii
2019-06-24 2:51 ` HaiJun Zhang
2019-06-24 19:48 ` Lars Ingebrigtsen
2019-06-24 20:03 ` Daniele Nicolodi
2019-06-24 20:17 ` Lars Ingebrigtsen
2019-06-24 21:11 ` Paul Eggert
2019-06-24 21:33 ` Lars Ingebrigtsen
2019-06-24 22:03 ` Paul Eggert
2019-06-24 22:06 ` Paul Eggert
2019-06-24 22:28 ` Lars Ingebrigtsen
2019-06-24 22:47 ` Lars Ingebrigtsen
2019-06-25 16:03 ` Eli Zaretskii
2019-06-26 9:15 ` Lars Ingebrigtsen
2019-06-26 15:22 ` Eli Zaretskii
2019-06-27 10:52 ` Lars Ingebrigtsen
2019-06-26 18:27 ` Paul Eggert
2019-06-26 18:41 ` Eli Zaretskii
2019-06-26 18:58 ` Paul Eggert
2019-06-26 19:11 ` Eli Zaretskii
2019-06-26 19:36 ` Daniele Nicolodi
2019-06-27 2:34 ` Eli Zaretskii
2019-06-27 5:43 ` Paul Eggert
2019-06-30 20:11 ` Daniele Nicolodi
2019-07-01 7:41 ` Daniele Nicolodi
2019-07-01 14:39 ` Eli Zaretskii
2019-07-01 17:01 ` Daniele Nicolodi
2019-07-02 2:28 ` Eli Zaretskii
2019-07-02 7:58 ` Daniele Nicolodi
2019-07-02 14:47 ` Eli Zaretskii
2019-07-02 20:56 ` Daniele Nicolodi
2019-07-03 5:23 ` Eli Zaretskii
2019-07-01 17:03 ` Daniele Nicolodi
2019-07-02 2:26 ` Eli Zaretskii
2019-06-26 19:38 ` Paul Eggert
2019-06-25 16:06 ` Eli Zaretskii
2019-06-26 9:21 ` Lars Ingebrigtsen
2019-06-26 15:23 ` Eli Zaretskii
2019-06-27 11:03 ` Lars Ingebrigtsen
2019-06-27 13:31 ` Eli Zaretskii
2019-06-28 8:30 ` Lars Ingebrigtsen
2019-07-03 7:31 ` Paul Eggert
2019-07-03 7:41 ` Eli Zaretskii
2019-07-03 7:47 ` Eli Zaretskii
2019-07-03 7:57 ` Eli Zaretskii
2019-07-03 8:45 ` Paul Eggert
2019-07-03 9:30 ` Eli Zaretskii
2019-07-03 23:08 ` Paul Eggert
2019-07-04 13:24 ` Eli Zaretskii
2019-07-07 1:16 ` Paul Eggert
2019-07-07 14:51 ` Eli Zaretskii
2019-07-08 22:35 ` Richard Copley
2019-07-09 2:33 ` Eli Zaretskii
2019-07-09 13:45 ` Richard Copley
2019-07-09 15:16 ` Eli Zaretskii
2019-07-09 2:47 ` Paul Eggert
2019-07-09 16:39 ` Eli Zaretskii
2019-07-09 18:12 ` Paul Eggert
2019-07-09 18:32 ` Eli Zaretskii
2019-07-09 18:44 ` Lars Ingebrigtsen
2019-07-09 19:17 ` Eli Zaretskii
2019-07-14 0:42 ` Paul Eggert
2019-07-14 6:01 ` Eli Zaretskii
2019-06-25 16:08 ` Eli Zaretskii
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