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Re: Status of wc-propcaching branch

From: Greg Hudson <ghudson_at_MIT.EDU>
Date: 2005-11-28 15:57:23 CET

On Mon, 2005-11-28 at 13:58 +0000, Julian Foad wrote:
> Given that I'm late with saying this, and you've already implemented a cache
> for three specific values, may I persuade you to at least change the field so
> that it doesn't look like a generic cache?

Ah, this is a good point. It worried me that we wouldn't be able to add
properties to the cache without a format bump once the code went live,
and Julian points out a possible way to rectify this (by including
absence as well as presence).

If we're concerned about space used by the entries file and/or the
processing time necessary to read each entry, we could adopt an approach
where the entries file has a declaration at the top which says "I am
caching the existence of properties foo, bar, and baz", and then each
cache entry is just a string "010" or something.

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Received on Mon Nov 28 16:05:22 2005

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