Re: [hybi] An _idea_ on framing

Greg Wilkins <gregw@webtide.com> Mon, 16 August 2010 12:21 UTC

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Date: Mon, 16 Aug 2010 22:22:22 +1000
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From: Greg Wilkins <gregw@webtide.com>
To: Micheil Smith <micheil@brandedcode.com>
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Subject: Re: [hybi] An _idea_ on framing
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Michael,

your idea is the basis of the recent proposal from Ian Fette (as well
as some others).
If we wish to have meta data per frame, then I think having a
meta-data length within a total frame length is a good way of
achieving that.   However, I think we need to first agree that we need
meta data per frame.

cheers




On 16 August 2010 18:27, Micheil Smith <micheil@brandedcode.com> wrote:
> Hi All,
>
> I know that most of the framing for messages is starting to be set in some-what
> fixed state, although, I had a thought last night that may possibly alleviate the
> problems of having to allocate room for features X, Y, and Z in the initial framing
> protocol.
>
> The proposal, as un-thought out as it is, is this:
>
>        You have not just one content-length fragment, but two, say, two 8 bit integers.
>        The first of these is the meta-data length, the second is the actual content length.
>
>        I'm not sure how these would be structured, perhaps something like:
>
>       +-----------------+----------------------+--------------------+-------------------------+
>        | 8 bits             | meta-length bits | 8 bits                 | content-length bits |
>       +-----------------+----------------------+--------------------+-------------------------+
>        | mete-length | meta data            | content-length | content                     |
>       +-----------------+----------------------+--------------------+-------------------------+
>
> This would allow us to later add or remove as much meta-data as we like, while staying
> consistent the whole time. It'd also add the possibility the servers or clients may ignore
> meta-data, but that's another issue all together.
>
> Take this as the view of an implementor of the protocol / an outsider to the process, this
> is just a thought, I'm not trying to necessarily start an argument / reopen a closed case,
> but it's just an idea nonetheless.
>
> Let me know what you think,
>
> Yours,
> Micheil Smith
> --
> BrandedCode.com
>
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