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: Thu, 21 Sep 2023 10:13:31 +0000 Message-ID: <87y1gzzvec.fsf@localhost> 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> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="22709"; mail-complaints-to="usenet@ciao.gmane.io" Cc: luangruo@yahoo.com, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Sep 21 12:13:36 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 1qjGgh-0005hG-J7 for ged-emacs-devel@m.gmane-mx.org; Thu, 21 Sep 2023 12:13:35 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qjGfr-0007u2-Hf; Thu, 21 Sep 2023 06:12:44 -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 1qjGfU-0007r5-PP for emacs-devel@gnu.org; Thu, 21 Sep 2023 06:12:25 -0400 Original-Received: from mout01.posteo.de ([185.67.36.65]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qjGfR-0004Sr-In for emacs-devel@gnu.org; Thu, 21 Sep 2023 06:12:20 -0400 Original-Received: from submission (posteo.de [185.67.36.169]) by mout01.posteo.de (Postfix) with ESMTPS id D4CE524002A for ; Thu, 21 Sep 2023 12:12:14 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1695291134; bh=0e1XOkHE6zH3RfBrx2f8kmExSA24qkoAxojmwifBHuk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:From; b=UMXII9mDCxXOhM0mqciBsQhksQ8A1prEBzIlzASw9zf8eNht2ACcwiXuJywOPONAW S6RTg4PXLGyC8Azf3G0LqpszGx7gd72toOyQsrZccaFiICJpb9HNUrkoxXUbr2Qeze /cVKKsM3n/3jDFJfUvJaYIFF/XuZpba3SzhSmAROOZ54ja/850Xg4VBMc29nhusL0T ucN6yrjdzzPNHsVfG0lYHgISmtJDIVBNGmIaZJOkPvsnhW2898XKFNggofFCM8PH0I 4LINiNdIxZ2OFu/gqkzsXK+cn3nYjNPAZUb+/TSr4cWvFQRzAZK0z6Vy6JmzX726PP 8dztwnU6PFnDA== Original-Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4RrrmZ2nL3z9rxD; Thu, 21 Sep 2023 12:12:14 +0200 (CEST) In-Reply-To: <83h6nnalu5.fsf@gnu.org> Received-SPF: pass client-ip=185.67.36.65; envelope-from=yantar92@posteo.net; helo=mout01.posteo.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, 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:310883 Archived-At: Eli Zaretskii writes: > Thank you for the (unnecessary) lecture, Well... hope it was at least useful for others reading the thread :shrug: > ... but I was actually asking > what needs to be changed and how to handle the global variables, both > those defined in C and those defined in Lisp. Po Lu can probably answer this better. As I understand his previous explanations, global variable values are stored per-thread, if they were changed by that thread at some point. For C-defined globals, the Vname instances are re-defined to point to thread-local "globals" struct. I do not recall Po Lu providing the details on how the thread-local variables are stored. -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at