From: Robert Pluim <rpluim@gmail.com>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: Eric Abrahamsen <eric@ericabrahamsen.net>,
Christian Barthel <bch@online.de>,
ding@gnus.org
Subject: Re: new wifi connection = nntp timeout = Emacs restart?, Re: new wifi connection = nntp timeout = Emacs restart?
Date: Tue, 05 May 2020 09:41:35 +0200 [thread overview]
Message-ID: <m2y2q63k28.fsf@gmail.com> (raw)
In-Reply-To: <87eerzwpdo.fsf@gnus.org> (Lars Ingebrigtsen's message of "Mon, 04 May 2020 20:01:39 +0200, Mon, 04 May 2020 11:47:46 -0700")
>>>>> On Mon, 04 May 2020 20:01:39 +0200, Lars Ingebrigtsen <larsi@gnus.org> said:
Lars> https://gnutls.org/manual/gnutls.html#index-gnutls_005fheartbeat_005fping
Lars> There's a TLS layer ping!
Yes. It caused HeartBleed :-)
Lars> Could we somehow use that for something fun? Like, for instance, have
Lars> nnimap (etc) send an asynchronous ping before a command, and if there is
Lars> no response to the ping, reconnect and retry? That would be something
Lars> that could work on for all the different protocols, so we wouldn't have
Lars> to implement this all over the place.
That could work. 1 ping with a 500ms timeout? Or do we need 2 for
those firewalls that will drop the first one?
Would adding something like
(unless (gnutls-ping (get-buffer-process (nnimap-buffer)))
(delete-process (get-buffer-process (nnimap-buffer))))
to nnimap-send-command be enough?
Eric> So I built with your diff, removed my dbus rule closing servers on
Eric> sleep, restarted Emacs, opened Gnus and connected to nntp, slept the
Eric> laptop, switched locations, opened up, and everything reconnected
Eric> perfectly on first refresh, I didn't even need the one-time "g" that the
Eric> dbus rule was there to solve.
So I think that indicates the direction we need to go in. Iʼm not sure
whether (ab)using tcp keepalive is better than Lars' idea, we'll have
to test both.
Robert
next prev parent reply other threads:[~2020-05-05 7:42 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-16 17:37 Eric Abrahamsen
2020-04-17 11:46 ` Eric S Fraga
2020-04-17 12:20 ` Gijs Hillenius
2020-04-17 12:26 ` Andreas Schwab
2020-04-17 14:51 ` Eric Abrahamsen
2020-04-17 15:38 ` David Engster
2020-04-17 16:35 ` Eric Abrahamsen
2020-04-19 6:37 ` Christian Barthel
2020-04-19 17:32 ` Eric Abrahamsen
2020-04-19 18:02 ` Robert Pluim
2020-04-19 21:23 ` Eric Abrahamsen
2020-04-19 22:10 ` Eric Abrahamsen
2020-04-20 4:54 ` Eric Abrahamsen
2020-04-20 7:40 ` Andreas Schwab
2020-04-20 15:45 ` Eric Abrahamsen
2020-04-20 15:54 ` Robert Pluim
2020-04-20 18:24 ` Eric Abrahamsen
2020-04-21 8:36 ` Alberto Luaces
2020-04-21 15:53 ` Eric Abrahamsen
2020-04-22 7:37 ` Alberto Luaces
2020-04-22 8:28 ` Alberto Luaces
2020-04-30 5:26 ` Lars Ingebrigtsen
2020-04-30 17:34 ` Eric Abrahamsen
2020-04-30 21:49 ` Lars Ingebrigtsen
2020-04-30 22:11 ` Eric Abrahamsen
2020-05-04 12:53 ` Robert Pluim
2020-05-04 13:13 ` Andreas Schwab
2020-05-04 13:33 ` Robert Pluim
2020-05-04 14:35 ` Andreas Schwab
2020-05-04 14:46 ` Robert Pluim
2020-05-04 15:10 ` Andreas Schwab
2020-05-04 16:29 ` Robert Pluim
2020-05-04 14:51 ` Lars Ingebrigtsen
2020-05-04 16:13 ` Robert Pluim
2020-05-04 16:36 ` Eric Abrahamsen
2020-05-04 17:21 ` Robert Pluim
2020-05-04 18:01 ` Lars Ingebrigtsen
2020-05-05 7:41 ` Robert Pluim [this message]
2020-05-05 8:19 ` new wifi connection = nntp timeout = Emacs restart?, " Lars Ingebrigtsen
2020-05-05 11:55 ` Robert Pluim
2020-05-19 13:34 ` Lars Ingebrigtsen
2020-05-19 13:36 ` Lars Ingebrigtsen
2020-05-04 18:47 ` Eric Abrahamsen
2020-05-04 15:38 ` Eric Abrahamsen
2020-05-04 16:28 ` Robert Pluim
2020-04-30 17:38 ` Eric Abrahamsen
2020-04-30 21:51 ` Lars Ingebrigtsen
2020-04-30 22:26 ` Eric Abrahamsen
2020-04-30 22:28 ` Lars Ingebrigtsen
2020-04-30 22:39 ` Eric Abrahamsen
2020-04-30 22:55 ` Lars Ingebrigtsen
2020-04-30 23:13 ` Eric Abrahamsen
2020-04-30 23:23 ` Lars Ingebrigtsen
2020-05-01 9:46 ` David Engster
2020-05-01 10:35 ` David Engster
2020-05-01 17:29 ` Eric Abrahamsen
2020-05-01 20:51 ` David Engster
2020-05-02 0:33 ` Eric Abrahamsen
2020-05-02 10:20 ` David Engster
2020-05-02 15:13 ` Eric Abrahamsen
2020-05-02 16:50 ` David Engster
2020-05-02 19:07 ` Eric Abrahamsen
2020-05-19 13:23 ` Lars Ingebrigtsen
2020-05-21 0:45 ` Eric Abrahamsen
2020-06-26 9:38 ` Lars Ingebrigtsen
2020-08-21 20:47 ` Eric Abrahamsen
2020-05-01 18:06 ` Eric Abrahamsen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=m2y2q63k28.fsf@gmail.com \
--to=rpluim@gmail.com \
--cc=bch@online.de \
--cc=ding@gnus.org \
--cc=eric@ericabrahamsen.net \
--cc=larsi@gnus.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).