From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Spencer Baugh Newsgroups: gmane.emacs.devel Subject: Re: unwind-protect within while-no-input Date: Wed, 08 May 2024 13:18:44 -0400 Organization: Jane Street Capital Message-ID: References: <86msp1a24a.fsf@gnu.org> <87le4l2btq.fsf@yahoo.com> <874jb8il6t.fsf@web.de> <87y18kh6eg.fsf@web.de> <87h6f8gu43.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="13646"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: emacs-devel@gnu.org Cancel-Lock: sha1:uHX4HvnI+3Lk1ldlTv/FV9Kb9CI= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed May 08 20:22:14 2024 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 1s4lvi-0003UJ-3s for ged-emacs-devel@m.gmane-mx.org; Wed, 08 May 2024 20:22:14 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s4lv3-0002fD-NU; Wed, 08 May 2024 14:21:33 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s4kwR-0000KX-PJ for emacs-devel@gnu.org; Wed, 08 May 2024 13:18:55 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s4kwQ-0006lE-7N for emacs-devel@gnu.org; Wed, 08 May 2024 13:18:55 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1s4kwO-0000Su-8H for emacs-devel@gnu.org; Wed, 08 May 2024 19:18:52 +0200 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=ged-emacs-devel@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Wed, 08 May 2024 14:21:31 -0400 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-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:319020 Archived-At: Michael Heerdegen via "Emacs development discussions." writes: > or protect the unwind forms against the raised quit: > > #+begin_src emacs-lisp > (let (foo) > (while-no-input > (unwind-protect (while t nil) > (let ((inhibit-quit t)) > (sleep-for 10) > (setq foo 'interrupted) > (message "foo: %s" foo))) > (message "foo: %s" foo))) > #+end_src > > (unwind forms are not per se protected from nonlocal exiting - see > documentation) That seems to work, but is it robust? If while-no-input can raise a quit between the start of executing unwindforms and the binding of inhibit-quit, then the unwind forms will not execute. Can while-no-input/throw-on-input actually raise a quit then? And is this behavior documented anywhere?