From: Matthias Dahl <ml_emacs-lists@binary-island.eu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: eggert@cs.ucla.edu, emacs-devel@gnu.org
Subject: Re: wait_reading_process_ouput hangs in certain cases (w/ patches)
Date: Tue, 14 Nov 2017 16:05:10 +0100 [thread overview]
Message-ID: <bd649478-1bf3-5c96-c26f-dffd386ba863@binary-island.eu> (raw)
In-Reply-To: <83tvxykvlp.fsf@gnu.org>
Hello Eli...
On 13/11/17 17:10, Eli Zaretskii wrote:
> We could reset the value to zero once it's consumed, in which case a
> narrower type would be okay. The price is a slight complication of
> the logic.
That would necessarily mean we need another variable to track how many
active waits we have since we can only zero the bytes read counter when
no other waits are active since they depend on that value as well. This
brings us back to the in-flight bytes read solution we discussed earlier
in this thread.
I don't see any real gain by complicating this further. It will not be
any better in detecting if any read backs have been processed. And the
memory saved is pretty much completely negligible except if there were a
huge amount of active processes floating around -- which usually there
are definitely not.
OTOH, it is more complicated and thus more prone to bugs and not as easy
to understand. And the metric is also not as useful...
> Maybe make the comment shorter by just saying that a wrap-around could
> happen there in case of overflow.
Ok. I will update that with the next revision.
So long,
Matthias
--
Dipl.-Inf. (FH) Matthias Dahl | Software Engineer | binary-island.eu
next prev parent reply other threads:[~2017-11-14 15:05 UTC|newest]
Thread overview: 151+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-24 18:52 wait_reading_process_ouput hangs in certain cases (w/ patches) Matthias Dahl
2017-10-25 14:53 ` Eli Zaretskii
2017-10-26 14:07 ` Matthias Dahl
2017-10-26 16:23 ` Eli Zaretskii
2017-10-26 18:56 ` Matthias Dahl
2017-10-28 8:20 ` Matthias Dahl
2017-10-28 9:28 ` Eli Zaretskii
2017-10-30 9:48 ` Matthias Dahl
2017-11-03 8:52 ` Matthias Dahl
2017-11-03 9:58 ` Eli Zaretskii
2017-11-04 12:11 ` Eli Zaretskii
2017-11-06 14:15 ` Matthias Dahl
2017-11-06 16:34 ` Eli Zaretskii
2017-11-06 18:24 ` Paul Eggert
2017-11-06 20:17 ` Eli Zaretskii
2017-11-07 14:18 ` Matthias Dahl
2017-11-07 16:40 ` Eli Zaretskii
2017-11-10 14:45 ` Matthias Dahl
2017-11-10 15:25 ` Eli Zaretskii
2017-11-12 21:17 ` Paul Eggert
2017-11-13 3:27 ` Eli Zaretskii
2017-11-13 5:27 ` Paul Eggert
2017-11-13 16:00 ` Eli Zaretskii
2017-11-13 19:42 ` Paul Eggert
2017-11-13 20:12 ` Eli Zaretskii
2017-11-13 14:13 ` Matthias Dahl
2017-11-13 16:10 ` Eli Zaretskii
2017-11-14 15:05 ` Matthias Dahl [this message]
2017-11-13 19:44 ` Paul Eggert
2017-11-14 14:58 ` Matthias Dahl
2017-11-14 15:24 ` Paul Eggert
2017-11-14 16:03 ` Eli Zaretskii
2017-11-14 16:23 ` Eli Zaretskii
2017-11-14 21:54 ` Paul Eggert
2017-11-15 14:03 ` Matthias Dahl
2017-11-16 15:37 ` Eli Zaretskii
2017-11-16 16:46 ` Paul Eggert
2017-11-18 14:24 ` Matthias Dahl
2017-11-18 14:51 ` Eli Zaretskii
2017-11-18 17:14 ` Stefan Monnier
2017-11-19 7:07 ` Paul Eggert
2017-11-19 15:42 ` Eli Zaretskii
2017-11-19 17:06 ` Paul Eggert
2017-11-20 15:29 ` Matthias Dahl
2017-11-21 14:44 ` Matthias Dahl
2017-11-21 21:31 ` Clément Pit-Claudel
2017-11-22 14:14 ` Matthias Dahl
2017-11-22 8:55 ` Paul Eggert
2017-11-22 14:33 ` Matthias Dahl
2017-11-24 2:31 ` Stefan Monnier
2017-12-28 17:52 ` Eli Zaretskii
2017-12-04 9:40 ` Matthias Dahl
2018-02-13 14:25 ` Matthias Dahl
2018-02-13 16:56 ` Paul Eggert
2018-02-16 16:01 ` Eli Zaretskii
2018-02-16 16:09 ` Lars Ingebrigtsen
2018-02-16 16:54 ` Lars Ingebrigtsen
2018-02-22 11:45 ` andres.ramirez
2018-02-26 14:39 ` Matthias Dahl
2018-02-26 15:11 ` andrés ramírez
2018-02-26 15:17 ` Lars Ingebrigtsen
2018-02-26 15:29 ` andrés ramírez
2018-02-26 16:52 ` Daniel Colascione
2018-02-26 17:19 ` andrés ramírez
2018-02-26 17:24 ` Daniel Colascione
2018-02-27 1:53 ` Re: andrés ramírez
2018-02-27 9:15 ` wait_reading_process_ouput hangs in certain cases (w/ patches) Matthias Dahl
2018-02-27 12:01 ` Lars Ingebrigtsen
2018-02-27 9:11 ` Matthias Dahl
2018-02-27 11:54 ` andrés ramírez
2018-02-27 15:02 ` Matthias Dahl
2018-02-27 15:13 ` Lars Ingebrigtsen
2018-02-27 15:17 ` Matthias Dahl
2018-02-27 15:19 ` Lars Ingebrigtsen
2018-02-27 15:14 ` Matthias Dahl
2018-02-27 15:17 ` Lars Ingebrigtsen
2018-03-01 10:42 ` Lars Ingebrigtsen
2018-03-01 14:36 ` Matthias Dahl
2018-03-01 15:10 ` andrés ramírez
2018-03-01 16:30 ` T.V Raman
2018-03-01 16:46 ` andrés ramírez
2018-03-01 18:23 ` T.V Raman
2018-03-01 19:13 ` Eli Zaretskii
2018-03-02 20:21 ` andrés ramírez
2018-03-03 7:55 ` Eli Zaretskii
2018-03-05 14:43 ` Matthias Dahl
2018-03-05 14:44 ` Lars Ingebrigtsen
2018-03-05 14:54 ` Matthias Dahl
2018-03-13 9:54 ` Matthias Dahl
2018-03-13 12:35 ` Robert Pluim
2018-03-13 13:40 ` Robert Pluim
2018-03-13 15:10 ` Matthias Dahl
2018-03-13 15:30 ` Robert Pluim
2018-03-13 15:36 ` Dmitry Gutov
2018-03-13 15:46 ` Robert Pluim
2018-03-13 15:56 ` Dmitry Gutov
2018-03-13 16:57 ` Robert Pluim
2018-03-13 18:03 ` Eli Zaretskii
2018-03-13 20:12 ` Robert Pluim
2018-03-14 14:21 ` Matthias Dahl
2018-03-13 16:32 ` Lars Ingebrigtsen
2018-03-14 9:32 ` Matthias Dahl
2018-03-14 14:55 ` Lars Ingebrigtsen
2018-03-31 15:44 ` Lars Ingebrigtsen
2018-04-01 2:05 ` andrés ramírez
2018-06-08 5:11 ` Leo Liu
2018-06-08 6:57 ` Eli Zaretskii
2018-06-08 9:07 ` Leo Liu
2018-03-13 16:12 ` Eli Zaretskii
2018-03-14 4:16 ` Leo Liu
2018-03-14 9:22 ` Robert Pluim
2018-03-15 0:37 ` Leo Liu
2018-03-14 15:09 ` andrés ramírez
2018-03-14 16:45 ` Eli Zaretskii
2018-03-15 1:03 ` Leo Liu
2018-03-15 7:55 ` Robert Pluim
2018-03-14 22:54 ` Stefan Monnier
2018-03-15 1:06 ` Leo Liu
2018-03-14 9:56 ` Matthias Dahl
2018-03-14 12:24 ` Stefan Monnier
2018-03-14 14:34 ` Matthias Dahl
2018-03-14 22:52 ` Stefan Monnier
2018-03-15 15:17 ` Matthias Dahl
2018-03-14 16:43 ` Eli Zaretskii
2018-03-15 14:59 ` Matthias Dahl
2018-06-26 13:36 ` Matthias Dahl
2018-06-26 14:09 ` andrés ramírez
2018-06-27 13:10 ` Matthias Dahl
2018-06-27 15:18 ` Eli Zaretskii
2018-06-28 8:01 ` Matthias Dahl
2018-06-28 13:04 ` Eli Zaretskii
2018-06-28 13:25 ` Matthias Dahl
2018-06-28 16:33 ` Leo Liu
2018-06-28 18:31 ` T.V Raman
2018-07-02 13:27 ` Matthias Dahl
2018-07-02 14:35 ` T.V Raman
2018-07-03 13:27 ` Matthias Dahl
2018-07-03 13:52 ` T. V. Raman
2018-07-03 15:03 ` Stefan Monnier
2018-07-02 13:24 ` Matthias Dahl
2018-07-14 2:27 ` Leo Liu
2018-07-03 13:34 ` Matthias Dahl
2018-07-03 18:57 ` Eli Zaretskii
2018-07-04 7:35 ` Matthias Dahl
2018-07-04 15:11 ` Eli Zaretskii
2018-07-21 9:52 ` Eli Zaretskii
2018-08-07 8:38 ` Matthias Dahl
2018-08-07 17:10 ` Paul Eggert
2018-09-10 8:21 ` Eli Zaretskii
2017-11-07 17:23 ` Stefan Monnier
2017-11-10 14:53 ` Matthias Dahl
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