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   Re: Streams, protocols, documents and fragments

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  • From: Tom Harding <tomh@thinlink.com>
  • To: xml-dev list <xml-dev@ic.ac.uk>
  • Date: Wed, 24 Feb 1999 14:15:13 -0800

David Megginson wrote:

> More importantly, you don't want to have to parse an entire document
> just to find out where it ends because that forces your system into
> linear processing -- on a busy server, it is absolutely necessary to
> be to isolate the documents/packets quickly and pass them off to
> separate threads (or even separate boxes) for parsing and processing.

Good point.  I have been implicitly assuming this as a cost of moving the parsing function into
the network infrastructure.  However, a general-purpose endpoint implementation would have a
hard time parallelizing in the way you describe because of possible inter-document dependencies
in the application protocol.  It has to deliver the documents to the next layer in the order in
which they were sent.  If parallelism is explicitly needed then a solution is to create
multiple connections.

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