From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <466d420c1351988780ba61464ddf782e@terzarima.net>
From: Charles Forsyth <forsyth@terzarima.net>
Date: Tue, 10 Apr 2007 18:39:35 +0100
To: 9fans@cse.psu.edu
Subject: Re: [9fans] 9P2000 and p9p
In-Reply-To: <461BC57B.3090006@tecmav.com>
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>Why the client always sends a second Tread request ?
>If the Rread returned 281/8192 bytes and the msize is > 8192 it should 
>be clear that there is no other data to read.

no, because in general data can be returned as discrete messages (or records) of
different sizes.  for instance with /net/cs and /net/dns each read returns a single
recipe for making a connection or a single translation of a name.
it's true on unix too: think of a magnetic tape drive (probably you can a description
in wikipedia if you never saw one).