From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#70415: 30.0.50; [Cygwin] `lock-file' creates a symlink with funny name Date: Tue, 30 Apr 2024 19:20:40 +0300 Message-ID: <86le4uq0tj.fsf@gnu.org> References: <861q75juvy.fsf@gnu.org> <86zftsgoxt.fsf@gnu.org> <86frv3r32m.fsf@gnu.org> <3a7eea72-d4ab-4fde-bdad-71b5e8f5bb7f@cornell.edu> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5568"; mail-complaints-to="usenet@ciao.gmane.io" Cc: yamaoka@jpl.org, 70415@debbugs.gnu.org To: Ken Brown Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Tue Apr 30 18:21:58 2024 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1s1qEu-00013s-3Z for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 30 Apr 2024 18:21:56 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s1qEh-0002Ri-4c; Tue, 30 Apr 2024 12:21:43 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s1qEf-0002RX-Sm for bug-gnu-emacs@gnu.org; Tue, 30 Apr 2024 12:21:41 -0400 Original-Received: from debbugs.gnu.org ([2001:470:142:5::43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1s1qEf-0007n2-KJ for bug-gnu-emacs@gnu.org; Tue, 30 Apr 2024 12:21:41 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1s1qF0-0005eY-7p for bug-gnu-emacs@gnu.org; Tue, 30 Apr 2024 12:22:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 30 Apr 2024 16:22:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 70415 X-GNU-PR-Package: emacs Original-Received: via spool by 70415-submit@debbugs.gnu.org id=B70415.171449408721716 (code B ref 70415); Tue, 30 Apr 2024 16:22:02 +0000 Original-Received: (at 70415) by debbugs.gnu.org; 30 Apr 2024 16:21:27 +0000 Original-Received: from localhost ([127.0.0.1]:60213 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1s1qEQ-0005eA-MJ for submit@debbugs.gnu.org; Tue, 30 Apr 2024 12:21:27 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:50230) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1s1qEA-0005dn-If for 70415@debbugs.gnu.org; Tue, 30 Apr 2024 12:21:25 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s1qDj-0007fc-Gy; Tue, 30 Apr 2024 12:20:43 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=3rFYg08JBMQHS00zTOhogx/gji1DbRZBZF9u5xCwmWs=; b=pNCef30/XMgB cv2cCYTq5AYD1Kk61Za0XRWdXxfoJbs937Hsq2sZRItBf+TdHovzv+1qsKcEeG8CrjEP1e/6a7iTC 2/ZTSaEKWriR9e2JbTgeMVOoaIKwpJkRzhuFDgCN72KgVf0zmTYaC6tXLAIjcWnzGQysVWCRiecAj l9G+7+1731R4fCqOvo697lX8fLEYP0pWq4x3Yz8Leb7s5JkRaYf6hWJvHZrDY9XpCprg0sOw7OUd8 1F51vy4I2c5ywh6F3Vf8HDYRKdPi9xaelOCvkRnPUDjnI+kX4n1jYUqZul9VRIUiekeVsi8vqBjJb BBm1pOVxZnJQ8G+BDVD1fQ==; In-Reply-To: <3a7eea72-d4ab-4fde-bdad-71b5e8f5bb7f@cornell.edu> (message from Ken Brown on Tue, 30 Apr 2024 11:23:21 -0400) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:284217 Archived-At: > Date: Tue, 30 Apr 2024 11:23:21 -0400 > Cc: yamaoka@jpl.org, 70415@debbugs.gnu.org > From: Ken Brown > > On 4/29/2024 10:34 PM, Eli Zaretskii wrote: > >> Date: Mon, 29 Apr 2024 19:05:35 -0400 > >> From: Ken Brown > >> Cc: 70415@debbugs.gnu.org > >> > >> I finally had a chance to look at this, and I can't reproduce the > >> problem. The autosave file does not have the ":BOOT_TIME" part, and it > >> gets deleted properly when the file is saved. I'm running the latest > >> stable release of Cygwin (3.5.3) on Windows 11 (version 23H2, build > >> 22631.3447). > > > > This is not about autosave files, this is about lock files. Those are > > created once you modify a file-visiting buffer. > > Sorry, I didn't write what I meant. I meant to refer to the lock file. OK. So it sounds like on some Cygwin systems this call in filelock.c: static int lock_file_1 (Lisp_Object lfname, bool force) { intmax_t boot = get_boot_sec (); yields a non-zero (and negative!) value of 'boot', and on other Cygwin systems it yields zero. Because that's how Emacs decides whether to append that ":-NNNN" part: char const *lock_info_fmt = (boot ? "%s@%s.%"PRIdMAX":%"PRIdMAX : "%s@%s.%"PRIdMAX); int len = snprintf (lock_info_str, sizeof lock_info_str, lock_info_fmt, user_name, host_name, pid, boot); get_boot_sec calls get_boot_time, which is a Gnulib function (see lib/boot-time.c). So I guess the key to unlock this puzzle is somewhere there.