From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#38632: 27.0.50; Emacs process name is changed permanently upon creating a named thread Date: Wed, 18 Dec 2019 19:18:57 +0200 Message-ID: <83mubp362m.fsf@gnu.org> References: <87bls8ojoh.fsf@yantar92-laptop.i-did-not-set--mail-host-address--so-tickle-me> <83y2va3efz.fsf@gnu.org> <83v9qd3a0i.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="190739"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 38632@debbugs.gnu.org, yantar92@gmail.com To: Robert Pluim Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Dec 18 18:20:11 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1ihczb-000nTV-3O for geb-bug-gnu-emacs@m.gmane.org; Wed, 18 Dec 2019 18:20:11 +0100 Original-Received: from localhost ([::1]:57898 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ihczZ-0007Df-D3 for geb-bug-gnu-emacs@m.gmane.org; Wed, 18 Dec 2019 12:20:09 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:60100) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ihczT-0007DM-BB for bug-gnu-emacs@gnu.org; Wed, 18 Dec 2019 12:20:04 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ihczS-0004ZW-Al for bug-gnu-emacs@gnu.org; Wed, 18 Dec 2019 12:20:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:37899) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ihczS-0004Xo-1U for bug-gnu-emacs@gnu.org; Wed, 18 Dec 2019 12:20:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1ihczR-0007CM-SL for bug-gnu-emacs@gnu.org; Wed, 18 Dec 2019 12:20:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 18 Dec 2019 17:20:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 38632 X-GNU-PR-Package: emacs Original-Received: via spool by 38632-submit@debbugs.gnu.org id=B38632.157668956227615 (code B ref 38632); Wed, 18 Dec 2019 17:20:01 +0000 Original-Received: (at 38632) by debbugs.gnu.org; 18 Dec 2019 17:19:22 +0000 Original-Received: from localhost ([127.0.0.1]:43872 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ihcyn-0007BL-NR for submit@debbugs.gnu.org; Wed, 18 Dec 2019 12:19:21 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:45489) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ihcym-0007B7-PV for 38632@debbugs.gnu.org; Wed, 18 Dec 2019 12:19:21 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:46703) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ihcyc-0000AS-Pw; Wed, 18 Dec 2019 12:19:13 -0500 Original-Received: from [176.228.60.248] (port=4014 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1ihcyZ-0005HO-SK; Wed, 18 Dec 2019 12:19:08 -0500 In-reply-to: (message from Robert Pluim on Wed, 18 Dec 2019 18:04:53 +0100) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:173527 Archived-At: > From: Robert Pluim > 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). So it is one more reason to do or own truncation, so we do it right. > 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. We need to truncate the names we store in the thread object (and document that).