From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.devel Subject: Re: wait_reading_process_ouput hangs in certain cases (w/ patches) Date: Mon, 6 Nov 2017 10:24:42 -0800 Organization: UCLA Computer Science Department Message-ID: References: <83lgjz8eiy.fsf@gnu.org> <831slp98ut.fsf@gnu.org> <83tvyj62qg.fsf@gnu.org> <83r2tetf90.fsf@gnu.org> <5150d198-8dd3-9cf4-5914-b7e945294452@binary-island.eu> <83tvy7s6wi.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: blaine.gmane.org 1509992702 17485 195.159.176.226 (6 Nov 2017 18:25:02 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 6 Nov 2017 18:25:02 +0000 (UTC) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 Cc: emacs-devel@gnu.org To: Eli Zaretskii , Matthias Dahl Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Nov 06 19:24:54 2017 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eBm4r-00049J-8X for ged-emacs-devel@m.gmane.org; Mon, 06 Nov 2017 19:24:53 +0100 Original-Received: from localhost ([::1]:49607 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eBm4y-0000Cd-Ft for ged-emacs-devel@m.gmane.org; Mon, 06 Nov 2017 13:25:00 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:33341) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eBm4s-0000CX-1j for emacs-devel@gnu.org; Mon, 06 Nov 2017 13:24:54 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eBm4r-0004YJ-CI for emacs-devel@gnu.org; Mon, 06 Nov 2017 13:24:54 -0500 Original-Received: from zimbra.cs.ucla.edu ([131.179.128.68]:52264) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eBm4k-0004VS-G5; Mon, 06 Nov 2017 13:24:46 -0500 Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 9FA56160AD0; Mon, 6 Nov 2017 10:24:43 -0800 (PST) Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id gYV0znhARs00; Mon, 6 Nov 2017 10:24:43 -0800 (PST) Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id EAB50160E51; Mon, 6 Nov 2017 10:24:42 -0800 (PST) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id xhXjau0h6g5J; Mon, 6 Nov 2017 10:24:42 -0800 (PST) Original-Received: from Penguin.CS.UCLA.EDU (Penguin.CS.UCLA.EDU [131.179.64.200]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id D00ED160982; Mon, 6 Nov 2017 10:24:42 -0800 (PST) In-Reply-To: <83tvy7s6wi.fsf@gnu.org> Content-Language: en-US X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 131.179.128.68 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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" Xref: news.gmane.org gmane.emacs.devel:219953 Archived-At: On 11/06/2017 08:34 AM, Eli Zaretskii wrote: > When we call emacs_read in other cases in > that function, the result is an ssize_t, a signed type of the same > width as size_t. As a minor point, POSIX does not require that ssize_t be the same width as size_t, or that ptrdiff_t be the same width as size_t. Emacs has run (and as far as I know, still would run) on unusual platforms where ssize_t is narrower than size_t.