From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: sqlite memory allocation and async signal safety Date: Thu, 24 Mar 2022 13:13:41 -0400 Message-ID: References: <8735j7btyj.fsf.ref@yahoo.com> <8735j7btyj.fsf@yahoo.com> <83v8w3d6cy.fsf@gnu.org> <87sfr7abx2.fsf@yahoo.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="32747"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: Eli Zaretskii , emacs-devel@gnu.org To: Po Lu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Mar 24 18:21:09 2022 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 1nXR92-0008Gf-KA for ged-emacs-devel@m.gmane-mx.org; Thu, 24 Mar 2022 18:21:08 +0100 Original-Received: from localhost ([::1]:43372 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nXR91-0007mp-8r for ged-emacs-devel@m.gmane-mx.org; Thu, 24 Mar 2022 13:21:07 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:44232) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nXR1z-0001JM-MN for emacs-devel@gnu.org; Thu, 24 Mar 2022 13:13:51 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:13089) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nXR1x-00071y-9A; Thu, 24 Mar 2022 13:13:50 -0400 Original-Received: from pmg1.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 92C1F10000A; Thu, 24 Mar 2022 13:13:46 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id D46BB100326; Thu, 24 Mar 2022 13:13:44 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1648142024; bh=az/bX7vJ2sDo9go/lJVNaNhyQVJ9+dwuuhwchq+6DUM=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=MjE9uZvCbnLGwYwqP9MNWPuX1bI8T+9lb4vuIGfBEC3QBdAWbArOqW2Vv2CaaCjeJ FxQQdEzYIdtAIZlxJKwn5I0sov+grbvN7dk8gANDshcJu9xPhNJnjYPXcBBgL5hzpT n0QSZWxE9RyoNm14mtDcmU6V+GNtnkkajt7L+JaReyO/97pFBTJMnEzLSThbHVv3ot IHrP6D/qD0ZGhtJmNUVDQ9n05gpTgDDRYcEXSGFQN+3myKsbpUwLIY7o6wfSiSOM4z DvnEUja7XfnVG0IpochjVydmQY0U/qLoaAba8pCgJj7NHWDlxL7h+0AivB1fp0kWH+ OvU/Ca80ZshGA== Original-Received: from ceviche (a213-22-142-170.cpe.netcabo.pt [213.22.142.170]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 13914120896; Thu, 24 Mar 2022 13:13:43 -0400 (EDT) In-Reply-To: <87sfr7abx2.fsf@yahoo.com> (Po Lu's message of "Thu, 24 Mar 2022 18:21:29 +0800") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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" Xref: news.gmane.io gmane.emacs.devel:287422 Archived-At: > Unfortunately, most system malloc implementations are still not > async-signal safe, Since we don't do any malloc inside our signal handler, this is not an issue. What Eli meant I think by "async safe" is in terms of multithreading with pthreads. Stefan