From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Are there plans for a multi-threaded Emacs? Date: 04 Dec 2003 10:41:48 -0500 Sender: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Message-ID: References: <87oevbes4h.fsf@emacswiki.org> <20031117040607.C6C5D79B72@server2.messagingengine.com> <87ekvpx18d.fsf@emptyhost.emptydomain.de> <4nad6cikxy.fsf@holmes.bwh.harvard.edu> <87ptf5zn4k.fsf@kanga.tapsellferrier.co.uk> NNTP-Posting-Host: deer.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1070556619 11289 80.91.224.253 (4 Dec 2003 16:50:19 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Thu, 4 Dec 2003 16:50:19 +0000 (UTC) Cc: tzz@lifelogs.com, nferrier@tapsellferrier.co.uk, emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Thu Dec 04 17:50:15 2003 Return-path: Original-Received: from quimby.gnus.org ([80.91.224.244]) by deer.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 1ARwgB-0005Po-00 for ; Thu, 04 Dec 2003 17:50:15 +0100 Original-Received: from monty-python.gnu.org ([199.232.76.173]) by quimby.gnus.org with esmtp (Exim 3.35 #1 (Debian)) id 1ARwgB-0001sr-00 for ; Thu, 04 Dec 2003 17:50:15 +0100 Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.24) id 1ARxQL-0003CY-6L for emacs-devel@quimby.gnus.org; Thu, 04 Dec 2003 12:37:57 -0500 Original-Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.24) id 1ARxJF-0001CE-3x for emacs-devel@gnu.org; Thu, 04 Dec 2003 12:30:37 -0500 Original-Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.24) id 1ARxHa-0000Nz-8B for emacs-devel@gnu.org; Thu, 04 Dec 2003 12:29:26 -0500 Original-Received: from [132.204.24.67] (helo=mercure.iro.umontreal.ca) by monty-python.gnu.org with esmtp (Exim 4.24) id 1ARwZa-00054G-Gj; Thu, 04 Dec 2003 11:43:26 -0500 Original-Received: from vor.iro.umontreal.ca (vor.iro.umontreal.ca [132.204.24.42]) by mercure.iro.umontreal.ca (8.12.9/8.12.9) with ESMTP id hB4Ffnbj014627; Thu, 4 Dec 2003 10:41:49 -0500 Original-Received: by vor.iro.umontreal.ca (Postfix, from userid 20848) id 16DC03CFD9; Thu, 4 Dec 2003 10:41:49 -0500 (EST) Original-To: rms@gnu.org In-Reply-To: Original-Lines: 12 User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3.50 X-DIRO-MailScanner: Found to be clean X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.2 Precedence: list List-Id: Emacs development discussions. List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Xref: main.gmane.org gmane.emacs.devel:18382 X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:18382 > Dynamic binding causes no trouble for multiple threads if each thread has > its own binding stack and switching threads swaps the bindings. That works fine in "normal" dynamically-scoped languaged. But can we really do that in elisp ? I mean, how could we make it work in my example of let-binding a buffer-local variable such as `default-directory' and then switching buffers back and forth ? I know such cases are rare but do exist. Maybe there's a way, but I haven't been able to figure it out ? Stefan