From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Ihor Radchenko Newsgroups: gmane.emacs.devel Subject: Re: Emacs design and architecture. How about copy-on-write? Date: Sat, 23 Sep 2023 14:09:24 +0000 Message-ID: <87r0mp0ynf.fsf@localhost> References: <877conk5ny.fsf@localhost> <83ttrreeu0.fsf@gnu.org> <87bkdzeas1.fsf@localhost> <83cyyfe5l8.fsf@gnu.org> <87led2o0nb.fsf@localhost> <83ttrqcpfb.fsf@gnu.org> <877comnv4a.fsf@localhost> <83fs3ackrq.fsf@gnu.org> <87ttrp89bx.fsf@localhost> <83led1aqnq.fsf@gnu.org> <87v8c3zun7.fsf@localhost> <83r0mr8w0j.fsf@gnu.org> <87bkduxz3l.fsf@localhost> <83cyya75eb.fsf@gnu.org> <877coh2lmd.fsf@localhost> <83r0mp3zh5.fsf@gnu.org> <55f29d31-947f-4cfc-a90e-36b0592ba12e@gutov.dev> <83lecx3uxt.fsf@gnu.org> <83il813u9e.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="6683"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Dmitry Gutov , acm@muc.de, incal@dataswamp.org, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Sep 23 16:09:03 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 1qk3Jf-0001W3-4s for ged-emacs-devel@m.gmane-mx.org; Sat, 23 Sep 2023 16:09:03 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qk3Iq-0004x0-Dk; Sat, 23 Sep 2023 10:08:12 -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 1qk3Ip-0004wp-MC for emacs-devel@gnu.org; Sat, 23 Sep 2023 10:08:11 -0400 Original-Received: from mout02.posteo.de ([185.67.36.66]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qk3In-0000LG-Q4 for emacs-devel@gnu.org; Sat, 23 Sep 2023 10:08:11 -0400 Original-Received: from submission (posteo.de [185.67.36.169]) by mout02.posteo.de (Postfix) with ESMTPS id 4927B240103 for ; Sat, 23 Sep 2023 16:08:08 +0200 (CEST) Original-Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4Rt9vq2Bqjz9s0s; Sat, 23 Sep 2023 16:08:07 +0200 (CEST) In-Reply-To: <83il813u9e.fsf@gnu.org> Received-SPF: pass client-ip=185.67.36.66; envelope-from=yantar92@posteo.net; helo=mout02.posteo.de X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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:311003 Archived-At: Eli Zaretskii writes: > I'm not bothered by slowness, I'm much more bothered by the magnitude > of the changes this will incur. I don't even know how to identify all > the places which would need such changes. I _hope_ that it will be enough to acquire global lock once redisplay or user input is requested. If my optimism does not hold, a safe approach that can be employed is to mark the functions that are thread-safe explicitly and acquire global lock by default. -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at