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.devel Subject: Re: Emacs design and architecture. How about copy-on-write? Date: Fri, 22 Sep 2023 21:08:44 +0300 Message-ID: <83h6nm5bdf.fsf@gnu.org> References: <0518f65b-1dd1-6923-8497-da4d3aeac631@gutov.dev> <87sf7fc7kd.fsf@dataswamp.org> <834jjuk68t.fsf@gnu.org> <87cyyhc7uu.fsf@dataswamp.org> <83ttrsg9nx.fsf@gnu.org> <83h6nrg4eg.fsf@gnu.org> <83v8c7elan.fsf@gnu.org> <877conk5ny.fsf@localhost> <83ttrreeu0.fsf@gnu.org> <87bkdzeas1.fsf@localhost> <83cyyfe5l8.fsf@gnu.org> <8734zbyu6o.fsf@dataswamp.org> <835y46e8o9.fsf@gnu.org> <87zg1ixvnc.fsf@dataswamp.org> <87il86nxts.fsf@localhost> <87r0mux93s.fsf@dataswamp.org> <87r0mt88xv.fsf@localhost> <87msxedx5s.fsf@dataswamp.org> <878r8y6v6o.fsf@localhost> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="23527"; mail-complaints-to="usenet@ciao.gmane.io" Cc: incal@dataswamp.org, emacs-devel@gnu.org To: Ihor Radchenko Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Sep 22 20:09:06 2023 Return-path: Envelope-to: ged-emacs-devel@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 1qjkaQ-0005yv-5X for ged-emacs-devel@m.gmane-mx.org; Fri, 22 Sep 2023 20:09:06 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qjka4-0006MV-GC; Fri, 22 Sep 2023 14:08:45 -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 1qjkZx-0006M8-3x for emacs-devel@gnu.org; Fri, 22 Sep 2023 14:08:37 -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 1qjkZv-0006Xb-O3; Fri, 22 Sep 2023 14:08:35 -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=/bTfKqWAlEd9GZ5l+onoylvFkLMW0DKTJKG0IUeySYk=; b=Fl/vCmTaAtWd nxcNrhQYDM4YnKb6hKJp1kyNvsUX9RX1YEjMkKvyNmEpJawJZO4W9zwbY8EtsyO7tFeldq1WTmkQd T6ETNyD8uROrF08+fE1/AX2kPMwSQrClnYbh+bsJ1GZLxtCNYUdQAjiBzZSmqdE/5EERgN+CicgAo dNJCnKLfVoEBDQOI+Wv/cirRrQfEsH4L35OAu3lsqqtQ/biGE7XClF36ASGGDtw3UUJgdBslpbSSp YZc1tvYqoTZSnunkmn+/SETO3lIp2gCzr64iIt5ratbwm2oi0Rc/O5eb10AXhEhBj+Ajs9ECAEdgL E6UvO55seOv98MACPu6HRA==; In-Reply-To: <878r8y6v6o.fsf@localhost> (message from Ihor Radchenko on Fri, 22 Sep 2023 19:15:27 +0300) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:310986 Archived-At: > From: Ihor Radchenko > Cc: emacs-devel@gnu.org > Date: Fri, 22 Sep 2023 19:15:27 +0300 > > Eli's point is that the new concurrency framework must allow the > existing code to run without modifying it to fit concurrency. Not > necessarily fast (maybe with some interlocking), but at least without > breaking. > > Otherwise, making actual use of concurrency will require rewriting a lot > of Elisp Starting from subr.el, simple.el, files.el, etc. -- stuff which every Lisp program written for Emacs uses without thinking twice.