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From: "Óscar Fuentes" <ofv@wanadoo.es>
To: help-gnu-emacs@gnu.org
Subject: Re: run-with-idle-timer vs. run-at-time
Date: Mon, 15 Feb 2021 20:33:31 +0100	[thread overview]
Message-ID: <87a6s5gm7o.fsf@telefonica.net> (raw)
In-Reply-To: m24kid87sm.fsf@athena.moeding.net

Stefan Möding <s.moeding@gmail.com> writes:

> I'm trying to understand the difference between these two timers:
>
> (run-with-idle-timer 0 nil (lambda () (...)))
>
> (run-at-time 0 nil (lambda () (...)))
>
> I suspect there is a difference (see below) but I'm unable to come up with
> an example where it actually makes a difference.  Does anybody have an idea
> what condition could cause a different behavior?
>
> I can see from the documentation that `run-with-idle-timer' runs when
> Emacs is waiting for input.  But that also seems to be the case for
> `run-at-time'.  Is there a way that `run-at-time' might run at a time
> (earlier) when `run-with-idle-timer' would not?

Put this code in *scratch*, evaluate it and look at the contents of
*Messages*:

(progn
  (sleep-for 1)
  (run-at-time 0 nil 'message "running at time")
  (run-with-idle-timer 0 nil 'message "running at idle time")
  (sleep-for 1)
  (message "after run at time")
  (message ""))




  reply	other threads:[~2021-02-15 19:33 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-15 19:12 run-with-idle-timer vs. run-at-time Stefan Möding
2021-02-15 19:33 ` Óscar Fuentes [this message]
2021-02-16  6:50   ` Stefan Möding

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