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: MPS: weak hash tables Date: Sun, 07 Jul 2024 17:42:25 +0300 Message-ID: <86zfqt1cxa.fsf@gnu.org> References: <878qyeffjh.fsf@localhost> <8734olzlws.fsf@gmail.com> <867cdx32e3.fsf@gnu.org> <864j912t0s.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="24917"; mail-complaints-to="usenet@ciao.gmane.io" Cc: pipcet@protonmail.com, eller.helmut@gmail.com, yantar92@posteo.net, emacs-devel@gnu.org To: Gerd =?utf-8?Q?M=C3=B6llmann?= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Jul 07 16:43:21 2024 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 1sQT6m-0006HC-RI for ged-emacs-devel@m.gmane-mx.org; Sun, 07 Jul 2024 16:43:21 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sQT5z-0006ST-VB; Sun, 07 Jul 2024 10:42:31 -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 1sQT5y-0006S9-Bm for emacs-devel@gnu.org; Sun, 07 Jul 2024 10:42:30 -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 1sQT5w-000793-Ls; Sun, 07 Jul 2024 10:42:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=EqzoX1DNDk2zAq5twASB8R9MaN7u8Da+jRnV+wETf+8=; b=OOyLJJcjGWcKTwdnn6eZ wk3Jo3HLPO5alTkRSKtojOf5M+tquJY5g0ZZQYY9drAnVmPkuQvPZCnMVP0YF7ri34mSBlfXjDkJD Yyu/gRhDMrF6EmEFRN6TyK0PWxjWdZoN0kN0MW9i1sCoB1+ITFjhF7T4zxJ25ovYnKEbm0irUxd/Y QTIbJiwG07i53jZoLnUnHFatkeMMLku+bJ6j6+2+j9g2w0ZWd+5wc6x7+lxKxl8N3LHP8LS9k28ff 2vxY72oBDJqFE3r90LSd8N5vr+OPVvBBcJfgsXb2IMDu/3IuZQQhVfWx4+gT+D20inaH2sGv1IUMH LkVq1IEJlTbNrw==; In-Reply-To: (message from Gerd =?utf-8?Q?M=C3=B6llmann?= on Sun, 07 Jul 2024 16:15:54 +0200) 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:321492 Archived-At: > From: Gerd Möllmann > Cc: pipcet@protonmail.com, eller.helmut@gmail.com, yantar92@posteo.net, > emacs-devel@gnu.org > Date: Sun, 07 Jul 2024 16:15:54 +0200 > > Eli Zaretskii writes: > > >> From: Gerd Möllmann > >> Cc: pipcet@protonmail.com, eller.helmut@gmail.com, yantar92@posteo.net, > >> emacs-devel@gnu.org > >> Date: Sun, 07 Jul 2024 13:19:09 +0200 > >> > >> Eli Zaretskii writes: > >> > >> >> Balancing only changes the tree structure, without freeing nodes, AFAIR. > >> >> But that could be wrong. It's been a long time since I looked closer at > >> >> that tree. > >> > > >> > We free nodes in sweep_intervals. > >> > >> I think that is handled in igc.c by intervals becoming unreachable. > > > > They will not become unreachable unless we unchain them, as is done in > > sweep_intervals. Right? > > It starts with the root of a tree becoming unreachable, say a string's > intervals become unreachable because the string is unreachable. By that, > the root's children are unreachable and so on. I thought about the case where the string or the buffer are still alive, but some of their intervals are no longer used because of changes in the text properties.