From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#15045: Point jumps inappropriately around time of Semantic lexing Date: Tue, 15 Oct 2013 22:57:29 -0400 Message-ID: References: <87pptptk9n.fsf@engster.org> <87eha4t7xz.fsf@engster.org> <8738qksz6l.fsf@engster.org> <837gfvua2r.fsf@gnu.org> <87y58bs9x4.fsf@engster.org> <83zjsrs3k2.fsf@gnu.org> <87pptmsv4z.fsf@engster.org> <83siyira0w.fsf@gnu.org> <87vc3drhuv.fsf@engster.org> <83haexrgjn.fsf@gnu.org> <83ppr7pr6c.fsf@gnu.org> <83li1upkfx.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1381892304 22874 80.91.229.3 (16 Oct 2013 02:58:24 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 16 Oct 2013 02:58:24 +0000 (UTC) Cc: 15045@debbugs.gnu.org, David Engster , Eric Ludlam To: Barry OReilly Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Oct 16 04:58:27 2013 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1VWHJX-0007vp-PZ for geb-bug-gnu-emacs@m.gmane.org; Wed, 16 Oct 2013 04:58:23 +0200 Original-Received: from localhost ([::1]:45111 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VWHJX-0005tZ-GT for geb-bug-gnu-emacs@m.gmane.org; Tue, 15 Oct 2013 22:58:23 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:51253) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VWHJN-0005p5-LU for bug-gnu-emacs@gnu.org; Tue, 15 Oct 2013 22:58:20 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VWHJD-0008VI-3D for bug-gnu-emacs@gnu.org; Tue, 15 Oct 2013 22:58:13 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:39305) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VWHJC-0008VE-W2 for bug-gnu-emacs@gnu.org; Tue, 15 Oct 2013 22:58:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1VWHJC-0002NX-4w for bug-gnu-emacs@gnu.org; Tue, 15 Oct 2013 22:58:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 16 Oct 2013 02:58:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 15045 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 15045-submit@debbugs.gnu.org id=B15045.13818922579096 (code B ref 15045); Wed, 16 Oct 2013 02:58:01 +0000 Original-Received: (at 15045) by debbugs.gnu.org; 16 Oct 2013 02:57:37 +0000 Original-Received: from localhost ([127.0.0.1]:53320 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VWHIm-0002Me-Ay for submit@debbugs.gnu.org; Tue, 15 Oct 2013 22:57:36 -0400 Original-Received: from pruche.dit.umontreal.ca ([132.204.246.22]:53171) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VWHIi-0002MU-Cj for 15045@debbugs.gnu.org; Tue, 15 Oct 2013 22:57:32 -0400 Original-Received: from pastel.home (lechon.iro.umontreal.ca [132.204.27.242]) by pruche.dit.umontreal.ca (8.14.1/8.14.1) with ESMTP id r9G2vTFf020043; Tue, 15 Oct 2013 22:57:30 -0400 Original-Received: by pastel.home (Postfix, from userid 20848) id A2AF362EBC; Tue, 15 Oct 2013 22:57:29 -0400 (EDT) In-Reply-To: (Barry OReilly's message of "Tue, 15 Oct 2013 13:08:58 -0400") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 1 Rules triggered RV4732=0 X-NAI-Spam-Version: 2.3.0.9362 : core <4732> : inlines <150> : streams <1056599> : uri <1566595> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:79302 Archived-At: > of (sit-for 0) doesn't change. It would no longer run timers if only > input-pending-p changes as described. Currently: > (defun sit-for (seconds &optional nodisp obsolete) > [...] > (cond > [...] > ((input-pending-p) > nil) > ((<= seconds 0) > (or nodisp (redisplay))) > [...] Indeed, the Elisp version of sit-for is a mess. > I considered whether (<= seconds 0) could fall through to the t case > instead. The easiest solution is to add an optional argument `check-timers' to input-pending-p, so you can preserve the exact same behavior. In the long run, we should try and clean up sit-for, but you may not have the courage to dig into this right now. > Looking ahead to the concurrency branch, should (sit-for 0 t) and > (thread-yield) have different behaviors? Not really. > I don't see thread-yield checking for timers to run, should it? Yes, it should. > (And it didn't look like timers were split out into their own threads > on the concurrency branch.) The current state of the concurrency branch is not always representative of what it should ideally look like ;-) But even if timers are made to belong to a thread, thread-yield should probably check timers. Stefan