Re: storeGet() -> storeGetPublic() ?

From: Robert Collins <robert.collins@dont-contact.us>
Date: Sun, 7 Jan 2001 09:50:47 +1100

Whatabout turning it into a callback?

StoreGetPublic (carryonfn,data,params)
return

carryonfn(data,resultstruct *){
...
}

----- Original Message -----
From: "Alex Rousskov" <rousskov@measurement-factory.com>
To: "Adrian Chadd" <adrian@creative.net.au>
Cc: <squid-dev@squid-cache.org>
Sent: Sunday, January 07, 2001 4:58 AM
Subject: Re: storeGet() -> storeGetPublic() ?

> On Sat, 6 Jan 2001, Adrian Chadd wrote:
>
> > Note again that this is only happening on the modio branch for now.
> > If noone objects I'll port over the patches to squid-HEAD to tidy
> > things up a little.
>
> I am afraid your change will effectively disable Cache Digests. It is
> probably prohibitively expensive to generate digests from scratch if
> every object's meta-data has to be read from disk.
>
> I see two options:
>
> - Keep all your changes to your branch only. Folks who
> want to test modio branch will be warned that digests should
> be disabled and ICP might be too slow.
>
> - Change the way Cache Digests are computed/maintained.
> In short, one would have to maintain a digest-like
> memory-resident hash that will be used to answer
> ICP queries and build digests if needed. The hash
> cannot be the same as current digests because we
> probably need to support delete operations.
> Your changes can be brought in to HEAD after the above
> is done and tested.
>
> Overall, I would think that such a drastic change as making storeGet()
> blocking should be well tested (at least HTTP/ICP/Digest-performance
> wise) in isolation before it is admitted into mainstream code.
>
> $0.02,
>
> Alex.
>
>
Received on Sat Jan 06 2001 - 15:39:57 MST

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