This is the mail archive of the cygwin mailing list for the Cygwin project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

read(): varblk tape records...(& Fix for : read())


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.


_________________________________________________________________
SEEK: Now with over 50,000 dream jobs! Click here http://ninemsn.seek.com.au/



-- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]