From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Ken Brown Newsgroups: gmane.emacs.bugs Subject: bug#25875: 26.0.50; Hang logging out of MS-Windows Date: Mon, 27 Feb 2017 15:19:21 -0500 Message-ID: <126703a8-f5ad-723e-2fba-4b642556972e@cornell.edu> References: <83lgsuqacv.fsf@gnu.org> <83efylq7m4.fsf@gnu.org> <834lzgreqq.fsf@gnu.org> <3f07808e-ab1c-d6b5-9ea0-dfc4c6fd6fc9@cornell.edu> <8337f0rbz6.fsf@gnu.org> <83shmzprwo.fsf@gnu.org> <83fuizphp8.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 1488228671 1702 195.159.176.226 (27 Feb 2017 20:51:11 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 27 Feb 2017 20:51:11 +0000 (UTC) User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.7.1 Cc: 25875@debbugs.gnu.org To: Richard Copley Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Feb 27 21:51:05 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1ciSG3-0007lJ-Is for geb-bug-gnu-emacs@m.gmane.org; Mon, 27 Feb 2017 21:50:59 +0100 Original-Received: from localhost ([::1]:56747 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ciSG7-0001VF-TJ for geb-bug-gnu-emacs@m.gmane.org; Mon, 27 Feb 2017 15:51:03 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:59573) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ciRm9-0008Im-G1 for bug-gnu-emacs@gnu.org; Mon, 27 Feb 2017 15:20:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ciRm6-0005oO-C6 for bug-gnu-emacs@gnu.org; Mon, 27 Feb 2017 15:20:05 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:60510) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ciRm6-0005oK-8h for bug-gnu-emacs@gnu.org; Mon, 27 Feb 2017 15:20:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1ciRm6-0007Uq-3M for bug-gnu-emacs@gnu.org; Mon, 27 Feb 2017 15:20:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Ken Brown Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 27 Feb 2017 20:20:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 25875 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 25875-submit@debbugs.gnu.org id=B25875.148822677428777 (code B ref 25875); Mon, 27 Feb 2017 20:20:02 +0000 Original-Received: (at 25875) by debbugs.gnu.org; 27 Feb 2017 20:19:34 +0000 Original-Received: from localhost ([127.0.0.1]:58709 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ciRle-0007U4-CU for submit@debbugs.gnu.org; Mon, 27 Feb 2017 15:19:34 -0500 Original-Received: from limerock01.mail.cornell.edu ([128.84.13.241]:41430) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ciRlc-0007Tr-3O for 25875@debbugs.gnu.org; Mon, 27 Feb 2017 15:19:32 -0500 X-CornellRouted: This message has been Routed already. Original-Received: from authusersmtp.mail.cornell.edu (granite4.serverfarm.cornell.edu [10.16.197.9]) by limerock01.mail.cornell.edu (8.14.4/8.14.4_cu) with ESMTP id v1RKJORJ015079; Mon, 27 Feb 2017 15:19:25 -0500 Original-Received: from [192.168.1.6] (mta-68-175-148-36.twcny.rr.com [68.175.148.36] (may be forged)) (authenticated bits=0) by authusersmtp.mail.cornell.edu (8.14.4/8.12.10) with ESMTP id v1RKJNcJ031246 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT); Mon, 27 Feb 2017 15:19:24 -0500 In-Reply-To: X-PMX-Cornell-Gauge: Gauge=XXXXX X-PMX-CORNELL-AUTH-RESULTS: dkim-out=none; X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:129905 Archived-At: On 2/27/2017 2:56 PM, Richard Copley wrote: > On 27 February 2017 at 19:46, Richard Copley wrote: >> On 27 February 2017 at 19:39, Ken Brown wrote: >>> On 2/27/2017 2:30 PM, Richard Copley wrote: >>>> >>>> If you want to block or delay a shutdown in recent >>>> Windows versions you need to use >>>> ShutdownBlockReasonCreate (it's unfortunate, but >>>> we lazy programmers proved we couldn't be trusted, >>>> collectively, to handle WM_QUERY_ENDSESSION >>>> correctly, so the arms race had to be escalated in >>>> order to allow users to shut down their computers >>>> reliably). >>> >>> >>> In spite of the careless mistake in my patch, you could still test Eli's >>> suggestion of using SendMessageTimeout instead of SendMessage, at least in >>> my_show_window. >> >> I can't, not really. Remember, I don't have a recipe. >> I'll never be able to observe whether it's working or not. >> (Am I missing something?) >> >>>> Ken, what was the original change intended to guard >>>> against? What would people be doing with Emacs that >>>> can't simply be abandoned? Did you have a particular >>>> example in mind? >>> >>> >>> Bug#23483. >> >> That's not a real issue, in my opinion. It's already covered, >> by autosave. No, it isn't covered. We don't know that the auto-save files are up-to-date at the time of shutdown. > There are programs like the OP in #23483 described, which > interrupt a shutdown to ask the user whether to save. Some of > them even call themselves "programmers' text editors" (shudder). > Emacs autosave is and always has been a better solution. > You can shoot yourself in the foot by making small but important > changes and then immediately shutting down Windows. But you'd > almost have to be doing it on purpose. I think it's reasonable for Emacs to attempt an orderly shutdown when the system is being shutdown, rather than just allowing the system to kill it. You've found a bug in my implementation of this, and I'm happy to try to fix it. Ken