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Re: Proposal: New Frame Size Text (was: Re: Design Issue: Frame Size Items)

Roberto Peon <grmocg@gmail.com> Sat, 11 May 2013 03:17 UTC

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Date: Fri, 10 May 2013 20:15:54 -0700
Message-ID: <CAP+FsNda_dzPqe1+e3DJsAtvi=xRH=dtdr0tnOJvCoWdF6MCjg@mail.gmail.com>
From: Roberto Peon <grmocg@gmail.com>
To: Martin Thomson <martin.thomson@gmail.com>
Cc: James M Snell <jasnell@gmail.com>, "William Chan (陈智昌)" <willchan@chromium.org>, Poul-Henning Kamp <phk@phk.freebsd.dk>, "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>, Hasan Khalil <hkhalil@google.com>
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Subject: Re: Proposal: New Frame Size Text (was: Re: Design Issue: Frame Size Items)
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For implementations that don't care about memory efficiency, you're right
that they'll unencode the huffman-encoded strings. :)

The majority of non-efficiency-oriented APIs I've used treated the overhead
of HTTP and IO as insignificant, and likely just wouldn't care about this
at all.
-=R


On Fri, May 10, 2013 at 8:01 PM, Martin Thomson <martin.thomson@gmail.com>wrote:

> On 10 May 2013 18:30, Roberto Peon <grmocg@gmail.com> wrote:
> > The memory needed for header interpretation will, for a decent
> > implementation, be at worst the sum of the size of the compression
> context
> > and the size of the receive buffer-- it will not expand once decompressed
> > unless a lot of useless copying is being done.
>
> I was going to say the same thing until I realized that most APIs will
> be forced to decode Huffman-encoded strings to present.  Some
> implementations might avoid this entirely, others might defer
> decompression, or something along those lines, but there is probably
> going to be at least some exposure to the decompressed data.
>

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