From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Stephen J. Turnbull" Newsgroups: gmane.emacs.devel Subject: Re: Proposed patch: allow user to disable lockfile creation Date: Fri, 29 Jul 2011 12:31:02 +0900 Message-ID: <87wrf1pxu1.fsf@uwakimon.sk.tsukuba.ac.jp> References: <87ei1bqi8p.fsf@uwakimon.sk.tsukuba.ac.jp> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 X-Trace: dough.gmane.org 1311910268 17707 80.91.229.12 (29 Jul 2011 03:31:08 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Fri, 29 Jul 2011 03:31:08 +0000 (UTC) Cc: dave@boostpro.com, johnw@newartisans.com, schwab@linux-m68k.org, emacs-devel@gnu.org To: rms@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Jul 29 05:31:03 2011 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Qmdmx-00037A-Ha for ged-emacs-devel@m.gmane.org; Fri, 29 Jul 2011 05:31:03 +0200 Original-Received: from localhost ([::1]:33525 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qmdmw-0000AU-AA for ged-emacs-devel@m.gmane.org; Thu, 28 Jul 2011 23:31:02 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:35564) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qmdmt-0000AD-AD for emacs-devel@gnu.org; Thu, 28 Jul 2011 23:31:00 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Qmdms-0001Bx-D0 for emacs-devel@gnu.org; Thu, 28 Jul 2011 23:30:59 -0400 Original-Received: from mgmt1.sk.tsukuba.ac.jp ([130.158.97.223]:52641) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qmdms-0001Bn-27; Thu, 28 Jul 2011 23:30:58 -0400 Original-Received: from uwakimon.sk.tsukuba.ac.jp (uwakimon.sk.tsukuba.ac.jp [130.158.99.156]) by mgmt1.sk.tsukuba.ac.jp (Postfix) with ESMTP id CF6E43FA070A; Fri, 29 Jul 2011 12:30:54 +0900 (JST) Original-Received: by uwakimon.sk.tsukuba.ac.jp (Postfix, from userid 1000) id 41C9F1A26F8; Fri, 29 Jul 2011 12:31:02 +0900 (JST) In-Reply-To: X-Mailer: VM 8.1.93a under 21.5 (beta31) "ginger" cd1f8c4e81cd XEmacs Lucid (x86_64-unknown-linux) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 130.158.97.223 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:142477 Archived-At: Richard Stallman writes: > We have a variable `inhibit-clash-detection' for the purpose. > > I wonder if it is possible to determine automatically the best value > for it. Yes. It's a constant = t (ie, no clash detection) IMO. :-) Seriously, for backward compatibility I have to say the answer is nil (enable clash detection). While I agree with the arguments that clash detection is mostly useless and occasionally a nuisance, there may be people who currently depend on it and might lose data if it were turned off by default and they had to explicitly turn it back on. The people who dislike the feature will happily turn it off in .emacs I suppose. > To have multiple users on a machine requires serial terminals or > services that allow remote login. My laptop has neither, so it is > impossible to have multiple users on it at once. "Nothing is impossible." I believe you have a Linux kernel on your laptop? Most likely it is configured with multiple virtual terminals on console. While only one login can use the console at each instant of time, it's certainly possible to have serial use while multiple users are logged in. As others have pointed out, this feature is also provided by many GUI systems, including both the GNOME and KDE desktop environments common on GNU/Linux systems.