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	Tue, 14 Sep 2021 22:32:44 +0000 (UTC)
Date: Tue, 14 Sep 2021 22:32:44 +0000
From: Eric Wong <e@80x24.org>
To: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Cc: meta@public-inbox.org
Subject: Re: RFC: lei-daemon and auto-up
Message-ID: <20210914223244.GB4907@dcvr>
References: <20210914204231.tl5pytm4qynyex2d@meerkat.local>
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Konstantin Ryabitsev <konstantin@linuxfoundation.org> wrote:
> Hello:
> 
> Since lei-daemon is already up and running, would it be possible to tell it to
> automatically "lei up" things at certain intervals?

Yes, something along those lines...  It should at least fall
back to refresh intervals if network connectivity is lost or
HTTP servers w/o support for long-polling.

The ideal thing would be to POST HTTP requests that do
long-polling against -httpd and let curl wait on the response;
similar to IMAP IDLE.

-httpd will probably trickle zero-byte gzipped responses at a
regular intervals to keep connections alive if there is no data,
yet.

There's still a lot of things I want to do w/ inotify and
IDLE(-like) real-time notifications (including the new
public-inbox-fetch command).  I don't like polling as a first
choice.

Also.  I'm not sure what ways exist to be notified on network
up/down events on Linux or *BSDs w/o polling.