GNU bug report logs - #56255
28.1.50; sxhash-equal does not change when object is modified

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Package: emacs;

Reported by: Ihor Radchenko <yantar92 <at> gmail.com>

Date: Mon, 27 Jun 2022 12:27:02 UTC

Severity: normal

Found in version 28.1.50

Fixed in version 29.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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Message #28 received at 56255 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Ihor Radchenko <yantar92 <at> gmail.com>
Cc: 56255 <at> debbugs.gnu.org
Subject: Re: bug#56255: 28.1.50; sxhash-equal does not change when object is
 modified
Date: Wed, 29 Jun 2022 12:15:30 +0200

Ihor Radchenko <yantar92 <at> gmail.com> writes:

> This is exactly the problem at hand. I was hoping to find a fast way to
> detect if a large deeply nested object is changed. If not, do not print
> that object for the purpose of saving it to disk cache. Printing can
> take up to 2-3 seconds in some cases.

I think you basically have to restructure the code to add a guard to
whatever's updating the structure to see whether it's "dirty" or not.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no
This bug report was last modified 3 years and 58 days ago.

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