From: "João Távora" <joaotavora@gmail.com>
To: emacs-devel <emacs-devel@gnu.org>, ttn@gnu.org
Subject: Re: run-with-timer vs run-with-idle-timer
Date: Fri, 11 May 2018 12:05:48 +0100 [thread overview]
Message-ID: <87k1sapi43.fsf@gmail.com> (raw)
In-Reply-To: <871seiqxwr.fsf@gmail.com> ("João Távora"'s message of "Fri, 11 May 2018 11:39:16 +0100")
João Távora <joaotavora@gmail.com> writes:
> Thien-Thi Nguyen <ttn@gnu.org> writes:
>
>> If you can structure whatever ‘catch’es the ‘throw’s to mutate
>> state visible to CONDITION, then you can use ‘while CONDITION’.
>> If that state is dynamic (e.g., declared w/ ‘defvar’), you can
>> can reconfigure the ‘throw’ to simply mutate it directly, and
>> eliminate the ‘catch’ part (and still use ‘while CONDITION’).
>
> After thinking a bit about it, you're totally right, and it becomes much
> simpler (read below).
> I suppose it's a matter of style.
Just to clarify, since I've just realised we're talking about two
independent things here:
1. "catch/loop/throw" vs "let/test/loop/set" is indeed a matter of style
(but you've probably convinced me to prefer the latter).
2. It's the short timeout to accept-process-output that I'm supposing
hurts performance, but it can also be lengthened using the first
idiom. I just blindly accepted what slime.el was doing since around
2004. I dug a bit of history (thanks M-x vc-region-history!) and a
10sec timeout first appeared to replace a timeoutless call. Two years
later it was (apparently buggily) replaced by a 0.01 second timeout
when adapting for the new accept-process-output in Emacs 22. That
value has stuck until today, probably because it works OK, too.
João
next prev parent reply other threads:[~2018-05-11 11:05 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-09 17:34 run-with-timer vs run-with-idle-timer João Távora
2018-05-09 18:10 ` Eli Zaretskii
2018-05-09 18:17 ` Eli Zaretskii
2018-05-09 18:40 ` João Távora
2018-05-09 18:59 ` Eli Zaretskii
2018-05-09 19:15 ` João Távora
2018-05-09 19:21 ` Eli Zaretskii
2018-05-09 19:34 ` João Távora
2018-05-09 20:00 ` Davis Herring
2018-05-09 20:18 ` João Távora
2018-05-10 11:46 ` Thien-Thi Nguyen
2018-05-10 12:28 ` João Távora
2018-05-10 18:50 ` Thien-Thi Nguyen
2018-05-11 10:39 ` João Távora
2018-05-11 11:05 ` João Távora [this message]
2018-05-12 17:57 ` Thien-Thi Nguyen
2018-05-12 17:37 ` Thien-Thi Nguyen
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