From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Gerd =?UTF-8?Q?M=C3=B6llmann?= Newsgroups: gmane.emacs.bugs Subject: bug#58158: 29.0.50; [overlay] Interval tree iteration considered harmful Date: Fri, 06 Oct 2023 15:14:42 +0200 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="39769"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: 58158@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Oct 06 15:15:54 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 1qokgK-000A8C-Vo for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 06 Oct 2023 15:15:52 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qokgC-0002n0-VS; Fri, 06 Oct 2023 09:15:45 -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 1qokgB-0002ma-3M for bug-gnu-emacs@gnu.org; Fri, 06 Oct 2023 09:15:43 -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 1qokgA-0001MZ-PG for bug-gnu-emacs@gnu.org; Fri, 06 Oct 2023 09:15:42 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1qokgT-0003hK-IM for bug-gnu-emacs@gnu.org; Fri, 06 Oct 2023 09:16:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Gerd =?UTF-8?Q?M=C3=B6llmann?= Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 06 Oct 2023 13:16:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 58158 X-GNU-PR-Package: emacs Original-Received: via spool by 58158-submit@debbugs.gnu.org id=B58158.16965981116389 (code B ref 58158); Fri, 06 Oct 2023 13:16:01 +0000 Original-Received: (at 58158) by debbugs.gnu.org; 6 Oct 2023 13:15:11 +0000 Original-Received: from localhost ([127.0.0.1]:49443 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qokfe-0001eV-Rj for submit@debbugs.gnu.org; Fri, 06 Oct 2023 09:15:11 -0400 Original-Received: from mail-wm1-x32e.google.com ([2a00:1450:4864:20::32e]:53698) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qokfd-0001Fv-3q for 58158@debbugs.gnu.org; Fri, 06 Oct 2023 09:15:09 -0400 Original-Received: by mail-wm1-x32e.google.com with SMTP id 5b1f17b1804b1-4053c6f0db8so18799835e9.3 for <58158@debbugs.gnu.org>; Fri, 06 Oct 2023 06:14:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1696598084; x=1697202884; darn=debbugs.gnu.org; h=content-transfer-encoding:mime-version:user-agent:message-id:date :references:in-reply-to:subject:to:from:from:to:cc:subject:date :message-id:reply-to; bh=oStGSFJfWEKRSHUs4cf6ccqX+5vW5UkpwCZ0hhbnFjM=; b=jd/RzM2eTBvs85fED7nrFVFo39xFwk3+zKMxXbVyn3A9pf0RhotlZpRVCieU/NVLSD uXW44wo326uYt1AYzYXiHlPyu585UI9sjLKAE1z9TGYywf7JEYhfF5StYNIUlcxLJ2Wf Ufnp5C4oazfUmoWlAC2K3BVhHsOtGX8uJZ8aYr3Doarl3UU4QfHOl7a+GFpZLgpVflxB cfhqHj8A6PviPtyfSVGd0W2qFjw6BmSBNTsDSXUTAEZKlHfwLpwEHXV5kUDbcMIYS8ef I/6QL6lf24tai6SoOEcJr1P61pVpQCkbD+QgUW4+bXtVyeCG8fAeKA+ulllX8hLbl/96 dyRA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696598084; x=1697202884; h=content-transfer-encoding:mime-version:user-agent:message-id:date :references:in-reply-to:subject:to:from:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=oStGSFJfWEKRSHUs4cf6ccqX+5vW5UkpwCZ0hhbnFjM=; b=FGgXpRsdU8IhGnFNuSUkrzWgn/gXPw3VJRe4DVDX1QoQvKVoqraLYH5UcMaxNYSYKv d19RlS5//xBs+8nUX69ojmA3dFu7xt/ndshar0pttnry44S0WhhXjnyQhNsDQKl/beAm EGdF4MJVtV7A5j0aOhRiKX+v0C56iqzwMJNc143bzVHpMaPeKe7FqynGCvUi44ff8SAj SObEoR1QUp1lDfO6qirpUDlH+1waweu/SHa2UqKGdFuzntbyKFvh+JEsZZBC/8oq7yyJ zWDr4BaTGTq5ox3fVxSo0vltqi9hA8hCxnX2MUR6CGg8mwsCrt3ph2mssdKpDnNV3zPo DF6w== X-Gm-Message-State: AOJu0YxrLzRX7dmb/RKAWkO3VbYLVmszoSwlHnHAF8Rta5hgmiM8XC6U Iw8ZXMDClgpGFi9p9QirKwmM/0vgiGw= X-Google-Smtp-Source: AGHT+IHIBaiSHIwAI3lHHquG94CxYHSsWty4J5LERJuPl+NCghhM/EYx3rAr8YPlXbqKhQ3GHMYlTA== X-Received: by 2002:a1c:ed17:0:b0:404:7480:d821 with SMTP id l23-20020a1ced17000000b004047480d821mr7310949wmh.37.1696598083930; Fri, 06 Oct 2023 06:14:43 -0700 (PDT) Original-Received: from Pro.fritz.box (pd9e36179.dip0.t-ipconnect.de. [217.227.97.121]) by smtp.gmail.com with ESMTPSA id hn32-20020a05600ca3a000b004053e9276easm5988827wmb.32.2023.10.06.06.14.43 for <58158@debbugs.gnu.org> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Oct 2023 06:14:43 -0700 (PDT) In-Reply-To: ("Gerd =?UTF-8?Q?M=C3=B6llmann?="'s message of "Thu, 29 Sep 2022 07:29:25 +0200") 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:271946 Archived-At: Gerd M=C3=B6llmann writes: > In its current form, interval tree iteration works like this: > > 1. Call begin_iteration(T) to iterate over tree T > 2. do stuff > 3. Call end_iteration(T) > > with the following rules: > > - Begin_iteration and end_iteration must be paired. > > - There can be only one iteration per tree at a time. Nested iteration > over the same tree is not supported (abort). > > - No GC may happen in step 2. This is because mark_buffer iterates over > buffer overlays. > > I think this is an exceedingly dangerous design. Time has passed, and I think this is no longer relevant. I'm therefore closing this bug.