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Re: [hybi] hum #3: Message

Dave Cridland <dave@cridland.net> Thu, 05 August 2010 22:06 UTC

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Date: Thu, 05 Aug 2010 23:06:56 +0100
From: Dave Cridland <dave@cridland.net>
To: Greg Wilkins <gregw@webtide.com>, Maciej Stachowiak <mjs@apple.com>, Server-Initiated HTTP <hybi@ietf.org>
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Subject: Re: [hybi] hum #3: Message
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On Thu Aug  5 22:50:31 2010, Greg Wilkins wrote:
> The main down side I can think of is that it makes it harder to word
> align header and data, but then I don't see a large demand for that.

Fixed width fields obviously allow that. Additionally, they're  
simpler to encode and decode by a very large margin.

Finally, it means that you can build very dumb intemediaries which  
read in the frame header in a single network read(), check the stream  
identifier (for instance), and then hardware copy the payload between  
interfaces. Fast reliable demultiplexing and other front-ending seems  
like quite compelling to me.

Dave.
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