From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Dynamic loading progress Date: Fri, 06 Mar 2015 00:14:02 -0500 Message-ID: References: <54E0A40F.5080603@dancol.org> <83sie7un20.fsf@gnu.org> <54E0D181.2080802@dancol.org> <83r3trulse.fsf@gnu.org> <54E0D7E0.305@87.69.4.28> <83h9unukbg.fsf@gnu.org> <54E0DEF8.7020901@dancol> <83egpruiyp.fsf@gnu.org> <54E0FF93.2000104@dancol.org> <833865vp4d.fsf@gnu.org> <54E2355A.90@87.69.4.28> <83vbj1u020.fsf@gnu.org> <54E24CA4.9020601@dancol.org> <83h9uk7ddb.fsf@gnu.org> <54E382A5.5030408@dancol.org> <54F789B2.6030105@dancol.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1425665954 8023 80.91.229.3 (6 Mar 2015 18:19:14 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 6 Mar 2015 18:19:14 +0000 (UTC) Cc: =?windows-1252?Q?Aur=E9lien?= Aptel , Eli Zaretskii , Stephen Leake , Emacs development discussions To: Daniel Colascione Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Mar 06 19:19:05 2015 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YTwpy-0001Rn-5d for ged-emacs-devel@m.gmane.org; Fri, 06 Mar 2015 19:19:02 +0100 Original-Received: from localhost ([::1]:59683 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YTwpx-000435-Ju for ged-emacs-devel@m.gmane.org; Fri, 06 Mar 2015 13:19:01 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:46994) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YTwpd-000402-MS for emacs-devel@gnu.org; Fri, 06 Mar 2015 13:18:42 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YTwpY-0008Pp-5W for emacs-devel@gnu.org; Fri, 06 Mar 2015 13:18:41 -0500 Original-Received: from chene.dit.umontreal.ca ([132.204.246.20]:47737) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YTwpY-0008Ph-0B; Fri, 06 Mar 2015 13:18:36 -0500 Original-Received: from alfajor.home (lechon.iro.umontreal.ca [132.204.27.242]) by chene.dit.umontreal.ca (8.14.1/8.14.1) with ESMTP id t26IIOSw005284; Fri, 6 Mar 2015 13:18:28 -0500 Original-Received: by alfajor.home (Postfix, from userid 20848) id 9AA136447E; Fri, 6 Mar 2015 00:14:05 -0500 (EST) In-Reply-To: <54F789B2.6030105@dancol.org> (Daniel Colascione's message of "Wed, 04 Mar 2015 14:39:46 -0800") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 1 Rules triggered RV5237=0 X-NAI-Spam-Version: 2.3.0.9393 : core <5237> : inlines <2377> : streams <1401022> : uri <1872992> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 132.204.246.20 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:183701 Archived-At: >>> * fixnum <-> int64_t is the only type conversion supported >> Not sure I understand: can the C side see "Lisp_Object" (presumably as >> an opaque type)? > As I'm imagining the system, no. Access is indirected. That insulates C > code from Emacs GC requirements and lets us easily support global > references. But that forces a completely manual management of Lisp_Object references, making the interface a lot more painful to use. I must prefer exposing staticpro and conservative stack scanning. Stefan