From: Robert Pluim <rpluim@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 38632@debbugs.gnu.org, yantar92@gmail.com
Subject: bug#38632: 27.0.50; Emacs process name is changed permanently upon creating a named thread
Date: Wed, 18 Dec 2019 22:30:14 +0100 [thread overview]
Message-ID: <m2sglh5nkp.fsf@gmail.com> (raw)
In-Reply-To: <83mubp362m.fsf@gnu.org> (Eli Zaretskii's message of "Wed, 18 Dec 2019 19:18:57 +0200")
>>>>> On Wed, 18 Dec 2019 19:18:57 +0200, Eli Zaretskii <eliz@gnu.org> said:
>> From: Robert Pluim <rpluim@gmail.com>
>> Cc: yantar92@gmail.com, 38632@debbugs.gnu.org
>> Date: Wed, 18 Dec 2019 18:04:53 +0100
>>
Eli> (Btw, the limitation is 16 bytes, including the terminating null, so
Eli> truncation needs to be clever about non-ASCII characters, and I wonder
Eli> what does prctl do when 15 bytes end in the middle of a multibyte
Eli> sequence.)
>>
>> It does exactly what you'd expect, it drops the extraneous bytes, so
>> putting eg ü on the boundary results in a name ending in à (#xc3).
Eli> So it is one more reason to do or own truncation, so we do it right.
OK. Is there a useful function that would help for that? I can cook up
something based on NEXT_CHAR_BOUNDARY and/or BYTES_BY_CHAR_HEAD, but Iʼd
expect there to be something already.
>> In any case, if emacs or prctl truncates, then the name as reported
>> by 'list-threads' will be out of sync with pthread_getname_np, unless
>> you'd want to adjust that too.
Eli> We need to truncate the names we store in the thread object (and
Eli> document that).
Thatʼs the easy part. Iʼm assuming mswindows doesnʼt truncate.
Robert
next prev parent reply other threads:[~2019-12-18 21:30 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-16 6:42 bug#38632: 27.0.50; Emacs process name is changed permanently upon creating a named thread Ihor Radchenko
2019-12-17 20:05 ` Eli Zaretskii
2019-12-18 9:05 ` Robert Pluim
2019-12-18 15:53 ` Eli Zaretskii
2019-12-18 17:04 ` Robert Pluim
2019-12-18 17:18 ` Eli Zaretskii
2019-12-18 21:30 ` Robert Pluim [this message]
2019-12-19 15:11 ` Eli Zaretskii
2019-12-19 16:42 ` Robert Pluim
2019-12-19 18:56 ` Eli Zaretskii
2019-12-20 19:13 ` Eli Zaretskii
2020-01-06 14:43 ` Robert Pluim
2020-01-06 16:22 ` Eli Zaretskii
2020-01-06 19:50 ` Mattias Engdegård
2020-01-06 21:58 ` Mattias Engdegård
2020-01-06 23:06 ` Robert Pluim
2020-01-07 15:45 ` Eli Zaretskii
2020-01-07 16:46 ` Mattias Engdegård
2020-01-07 17:05 ` Eli Zaretskii
2020-01-07 17:07 ` Eli Zaretskii
2020-01-07 17:19 ` Mattias Engdegård
2020-01-08 18:26 ` Glenn Morris
2020-01-08 18:54 ` Eli Zaretskii
2020-01-08 19:34 ` Glenn Morris
2020-01-08 20:01 ` Eli Zaretskii
2020-01-06 22:21 ` Robert Pluim
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=m2sglh5nkp.fsf@gmail.com \
--to=rpluim@gmail.com \
--cc=38632@debbugs.gnu.org \
--cc=eliz@gnu.org \
--cc=yantar92@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).