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: Thu, 21 Sep 2023 15:57:03 +0300 Message-ID: <838r8zadls.fsf@gnu.org> References: <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> <87o7hyx8h2.fsf@dataswamp.org> <87o7hx88ry.fsf@localhost> <87a5thta90.fsf@yahoo.com> <87led1865h.fsf@localhost> <875y45t7yo.fsf@yahoo.com> <874jjprmq2.fsf@yahoo.com> <83a5tgc03s.fsf@gnu.org> <87zg1gqr8q.fsf@yahoo.com> <83msxg9eb9.fsf@gnu.org> <87msxgq8rn.fsf@yahoo.com> <83jzsk9c5l.fsf@gnu.org> <87msxf2abp.fsf@localhost> <83h6nnalu5.fsf@gnu.org> <87y1gzzvec.fsf@localhost> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="29720"; mail-complaints-to="usenet@ciao.gmane.io" Cc: luangruo@yahoo.com, emacs-devel@gnu.org To: Ihor Radchenko Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Sep 21 15:02:57 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 1qjJKb-0007Vk-9G for ged-emacs-devel@m.gmane-mx.org; Thu, 21 Sep 2023 15:02:57 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qjJJy-000367-Q1; Thu, 21 Sep 2023 09:02:28 -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 1qjJEv-0004No-5U for emacs-devel@gnu.org; Thu, 21 Sep 2023 08:57:06 -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 1qjJEu-0001RA-LB; Thu, 21 Sep 2023 08:57:04 -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=0tG0CPPIPlXnOoMEsqW7osPfR6v25GxmDadim0RGvTo=; b=Rw0vxlUvxwke NNMZ0Jn3cuB3UZue0Bj7NyBJqt2XPnE01d7Q+MjITElP8EHy4slXmmCFXJcC/m6Y240JXVAZmVODc nQQl+/1rvex9AjGkmOeQY7sZ+/AL3HU7FrzDjRf4dv4eshkCtHc2Upxuj/EPUz3hpQ1ZeqJxRvyb6 Kk/9dZOeWyn/oFDUHU7uaktgzt2E1jW5cIV/Due0ExvsAnizjXoMR7tiHSjKbTUgQHt8d0li84hAl eOu6J/dzPAnhIyQv1sIJmoOh9ZT6qMR776sSx/hwzNjHFGg1tvzsIDp07TCh5PgRrBXxPTYYRzQHc p1TsPovg10eF7onAHgSUTg==; In-Reply-To: <87y1gzzvec.fsf@localhost> (message from Ihor Radchenko on Thu, 21 Sep 2023 10:13:31 +0000) 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:310891 Archived-At: > From: Ihor Radchenko > Cc: luangruo@yahoo.com, emacs-devel@gnu.org > Date: Thu, 21 Sep 2023 10:13:31 +0000 > > As I understand his previous explanations, global variable values are > stored per-thread, if they were changed by that thread at some point. So if a thread changes a global variables, other threads will never notice? That's not what Emacs Lisp programs expect.