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.bugs Subject: bug#64596: 30.0.50; On FIXME: in src/buffer.c:1481 (force-mode-line-update) Date: Mon, 17 Jul 2023 15:22:55 +0300 Message-ID: <831qh6917k.fsf@gnu.org> References: <877cr4nez9.fsf@localhost> <83lefj4okb.fsf@gnu.org> <83fs5r3tqv.fsf@gnu.org> <834jm6fppc.fsf@gnu.org> <87a5vyidy6.fsf@localhost> <83sf9qe2ip.fsf@gnu.org> <83a5vxejz6.fsf@gnu.org> <87ttu4gnpt.fsf@localhost> <83bkgb8xo5.fsf@gnu.org> <87jzuz1uq5.fsf@localhost> <83a5vv8edp.fsf@gnu.org> <87ttu2zydc.fsf@localhost> <83351m92jl.fsf@gnu.org> <87y1jeiw8t.fsf@localhost> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="29273"; mail-complaints-to="usenet@ciao.gmane.io" Cc: monnier@iro.umontreal.ca, 64596@debbugs.gnu.org To: Ihor Radchenko Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Jul 17 14:23:14 2023 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1qLNFy-0007PA-FE for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 17 Jul 2023 14:23:14 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qLNFo-0007MH-Jp; Mon, 17 Jul 2023 08:23:04 -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 1qLNFm-0007M4-Ap for bug-gnu-emacs@gnu.org; Mon, 17 Jul 2023 08:23:02 -0400 Original-Received: from debbugs.gnu.org ([2001:470:142:5::43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qLNFl-0002qY-Ss for bug-gnu-emacs@gnu.org; Mon, 17 Jul 2023 08:23:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1qLNFl-00017q-OT for bug-gnu-emacs@gnu.org; Mon, 17 Jul 2023 08:23:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 17 Jul 2023 12:23:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 64596 X-GNU-PR-Package: emacs Original-Received: via spool by 64596-submit@debbugs.gnu.org id=B64596.16895965584297 (code B ref 64596); Mon, 17 Jul 2023 12:23:01 +0000 Original-Received: (at 64596) by debbugs.gnu.org; 17 Jul 2023 12:22:38 +0000 Original-Received: from localhost ([127.0.0.1]:49298 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qLNFN-00017E-RE for submit@debbugs.gnu.org; Mon, 17 Jul 2023 08:22:38 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54722) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qLNFL-00016x-NU for 64596@debbugs.gnu.org; Mon, 17 Jul 2023 08:22:36 -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 1qLNFG-0002hW-CL; Mon, 17 Jul 2023 08:22:30 -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=27XZxaEeKT/VQlfDEtvBCkf9U+BeN61niPqsT/2lrZo=; b=XUyYxoB2XiqN uwad02S6OBAhvKU2KZtE/pv88fcqJM42xMzZpitGz68X+DdRD0JNGHvBUy58KZ8sXeTEROl1/Gqmr sNB7F/XtwHhj8nPIhTL8CklOBP2esFn7Js0KE0zDS2eqCtOnDze92/MHqsBxH8/rhCjZ4EUy0mrQQ +tu7JmNHbXUEJkC+67DMgUPlUCBdUTdCNiEYso7W0mJyyCZwf8cHMTJ6McKgg29MgQfcnkuv/1i6j FEibKzVoV/q8dX6MbPAZ3/1WC8abGew+9HKb27KXywy/EEjkey28gk54xACckcF35iKzumjbbjToc jqEtsZxhIXVliHc5Mq+rgw==; Original-Received: from [87.69.77.57] (helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qLNFF-0004wm-S8; Mon, 17 Jul 2023 08:22:30 -0400 In-Reply-To: <87y1jeiw8t.fsf@localhost> (message from Ihor Radchenko on Mon, 17 Jul 2023 12:00:02 +0000) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:265391 Archived-At: > From: Ihor Radchenko > Cc: monnier@iro.umontreal.ca, 64596@debbugs.gnu.org > Date: Mon, 17 Jul 2023 12:00:02 +0000 > > Eli Zaretskii writes: > > >> This does not help the confusion, unfortunately. > >> Or maybe the terms "redisplay" and "update" should be explained better > >> somewhere near the top of xdisp.c. They clearly have different meaning, > >> but not for untrained eye. > > > > "Update" is the general name of the 3rd step of "redisplay cycle". It > > takes its name from the function which enters this step: update_frame. > > May someone then detail these steps in the top commentary in xdisp.c + > highlight that redisplay term is generally used when deciding if we need > to update. It's already in the large commentary at the beginning of xdisp.c (search for "update_window" to find the description of "update"). It just "drowns" in the sea of the information there > And update is an actual process of putting desired matrix onto the > glass. That's a very simplistic description of what "update" does. Even the comment in xdisp.c says more.