From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#15180: Add a way to fflush stdout in batch mode Date: Sun, 17 Apr 2022 14:05:59 +0200 Message-ID: <87pmlfap94.fsf_-_@gnus.org> References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="21988"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: Andreas Schwab , Barry OReilly , 15180@debbugs.gnu.org, Johan Andersson To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Apr 17 14:07:33 2022 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 1ng3gj-0005XE-PI for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 17 Apr 2022 14:07:33 +0200 Original-Received: from localhost ([::1]:34264 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ng3gi-0007Hk-D1 for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 17 Apr 2022 08:07:32 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:46912) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ng3gF-0007Gf-58 for bug-gnu-emacs@gnu.org; Sun, 17 Apr 2022 08:07:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:41271) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1ng3gE-0002qc-JP for bug-gnu-emacs@gnu.org; Sun, 17 Apr 2022 08:07:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1ng3gE-0005wj-8I for bug-gnu-emacs@gnu.org; Sun, 17 Apr 2022 08:07:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 17 Apr 2022 12:07:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 15180 X-GNU-PR-Package: emacs Original-Received: via spool by 15180-submit@debbugs.gnu.org id=B15180.165019717322785 (code B ref 15180); Sun, 17 Apr 2022 12:07:02 +0000 Original-Received: (at 15180) by debbugs.gnu.org; 17 Apr 2022 12:06:13 +0000 Original-Received: from localhost ([127.0.0.1]:35165 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ng3fR-0005vR-91 for submit@debbugs.gnu.org; Sun, 17 Apr 2022 08:06:13 -0400 Original-Received: from quimby.gnus.org ([95.216.78.240]:42180) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ng3fP-0005vC-DO for 15180@debbugs.gnu.org; Sun, 17 Apr 2022 08:06:12 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=BSb5PCyHySQXyDtii0m8UH18WYmsAcu9DKKDajADidE=; b=bhRqQIaNH94oi+0OpsTgdcdPf4 pzf3FGv9B9Z41UHSnT9d+hgOT0Hwpl3wZf9L32rTc+p6czUimPYZA4f9N7xKTKyUQFAuR37Hbbm0B fG3PWwRoIvgMuvPwhHW7U6QEc9/7VAuJCLCFVOn/l6F5OEcrEyi1i1uJrxS4PQ4+aXmc=; Original-Received: from [84.212.220.105] (helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ng3fD-0004tw-Jf; Sun, 17 Apr 2022 14:06:03 +0200 In-Reply-To: (Stefan Monnier's message of "Thu, 19 Sep 2013 09:46:26 -0400") 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" Xref: news.gmane.io gmane.emacs.bugs:230043 Archived-At: Stefan Monnier writes: >>> What is the function to flush a stdio stream from Elisp? If it exists then >>> it could be called before the sleep-for. >>> An alternative to adding such a function is to simply have the print >>> functions call fflush in C if noninteractive. >> That function would be awesome. Is it possible to call such a C function >> from Elisp? > > I guess it would make sense to call fflush in the batch equivalent > of redisplay. That sounds attractive, but I think there's a real possibility that that could have unforeseen effects in older scripts -- uncomplete lines would be output automatically, and that might break stuff. So I've instead added a `flush-standard-output' function to Emacs 29, so that the script writers can control this themselves. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no