From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#22493: 25.1.50; open-gnutls-stream doesn't respect :nowait, so the connections are synchronous Date: Fri, 05 Feb 2016 13:36:06 +1100 Message-ID: <87oabveve1.fsf@gnus.org> References: <87mvrnzpge.fsf@gnus.org> <878u37zndq.fsf@gnus.org> <83r3gzwhg8.fsf@gnu.org> <87fuxebrsy.fsf@gnus.org> <878u36fung.fsf@gnus.org> <8360y93fka.fsf@gnu.org> <87wpqpwd8p.fsf@gnus.org> <83d1sh14is.fsf@gnu.org> <87egcx13kc.fsf@gnus.org> <83bn801d06.fsf@gnu.org> <87bn7znazd.fsf@gnus.org> <83lh73ytxo.fsf@gnu.org> <87a8nizjia.fsf@gnus.org> <8760y6zha1.fsf@gnus.org> <83fux9yend.fsf@gnu.org> <87a8nhnqdy.fsf@gnus.org> <83wpqkwhts.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1454639842 869 80.91.229.3 (5 Feb 2016 02:37:22 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 5 Feb 2016 02:37:22 +0000 (UTC) Cc: 22493@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Feb 05 03:37:10 2016 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 1aRWGk-0003vn-8c for geb-bug-gnu-emacs@m.gmane.org; Fri, 05 Feb 2016 03:37:10 +0100 Original-Received: from localhost ([::1]:45517 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aRWGj-0001z8-Mn for geb-bug-gnu-emacs@m.gmane.org; Thu, 04 Feb 2016 21:37:09 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:48705) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aRWGf-0001yq-B7 for bug-gnu-emacs@gnu.org; Thu, 04 Feb 2016 21:37:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aRWGc-0000i5-3u for bug-gnu-emacs@gnu.org; Thu, 04 Feb 2016 21:37:05 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:52211) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aRWGc-0000i1-05 for bug-gnu-emacs@gnu.org; Thu, 04 Feb 2016 21:37:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84) (envelope-from ) id 1aRWGb-0003mF-Rv for bug-gnu-emacs@gnu.org; Thu, 04 Feb 2016 21:37:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 05 Feb 2016 02:37:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 22493 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 22493-submit@debbugs.gnu.org id=B22493.145463979514485 (code B ref 22493); Fri, 05 Feb 2016 02:37:01 +0000 Original-Received: (at 22493) by debbugs.gnu.org; 5 Feb 2016 02:36:35 +0000 Original-Received: from localhost ([127.0.0.1]:60800 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aRWGB-0003lZ-8x for submit@debbugs.gnu.org; Thu, 04 Feb 2016 21:36:35 -0500 Original-Received: from hermes.netfonds.no ([80.91.224.195]:39504) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aRWG9-0003lP-6H for 22493@debbugs.gnu.org; Thu, 04 Feb 2016 21:36:34 -0500 Original-Received: from cpe-60-225-211-161.nsw.bigpond.net.au ([60.225.211.161] helo=mouse) by hermes.netfonds.no with esmtpsa (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from ) id 1aRWFm-0001Ae-Fo; Fri, 05 Feb 2016 03:36:11 +0100 In-Reply-To: <83wpqkwhts.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 04 Feb 2016 18:39:27 +0200") User-Agent: Gnus/5.130014 (Ma Gnus v0.14) Emacs/25.1.50 (gnu/linux) X-MailScanner-ID: 1aRWFm-0001Ae-Fo MailScanner-NULL-Check: 1455244571.39477@uhwrXF6bnEzBM9R3KQ7p7g 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:112448 Archived-At: Eli Zaretskii writes: >> So we call gnutls_boot after the connection has happened. I originally >> did this with a sentinel on a process, but that doesn't really work, >> because the callers of make_network_process want their own sentinels on >> the process. So I call gnutls_boot from the C layer instead of from a >> sentinel. >> >> No matter how we call gnutls_boot, it will currently hang Emacs while >> it's transferring all those certificates back and forth. > > That last sentence is exactly the point I was trying to make all > along: we have to wait for this, therefore any time savings from > running gnutls_boot in the background are minor or even non-existent. > So I question the need for complicating the heck out of the underlying > code, for no practical gain. I describe the call chain, and why it's necessary to have the gnutls_boot called from the C layer. If you see anything wrong with the logic I described, please let me know. And as I've said repeatedly, gnutls_boot is only synchronous now as a quirk of our implementation, and making it async is the next step I am going to take. But it's a separate issue, and will be dealt with once the first round of changes are in. > Why shouldn't we assume that the problem you saw in erc is the tip of > an iceberg, and the other places are happy exceptions? Who knows how > many other packages are out there that are like erc? That's why :async 'dns. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no