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From:	"Jason Winter" <jasonwinter AT hotmail DOT com>
To:	cygwin AT cygwin DOT com
Cc:	corinna-cygwin AT cygwin DOT com
Subject:	read(): varblk tape records...(& Fix for : read())
Date:	Tue, 02 Mar 2004 10:51:04 +0000
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Message-ID:	<Sea2-F29FHsBGwtzNc800044bfd@hotmail.com>
X-OriginalArrivalTime:	02 Mar 2004 10:51:04.0500 (UTC) FILETIME=[42666740:01C40044]

Hi Corinna,

Rereading the MSDN: Q161338 document I refered to before, Cygwin will need 
to use a minimum 128KB buffer when 'reading' data from tapes - the NT 
specification doesn't allow access to the 'last bytes' in a variable-block 
any other way.  128KB allows for any SCSI device under windows.

(I noticed there was a memcpy for each ReadFile call - so I assume CygWin 
uses its own internal buffers, which may or maynot be large enough for tape 
support.)
Jason.

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