GDAU100@BGUVM.BITNET ("Jonathan B. Owen") (11/27/88)
Hello Group.
   I assume many of you work on Unix based targets.  Well, here's a question
you might be able to answer.
   I make updates to a file via DIRECT_IO.  At some point I must be sure
that the updates were physically written to disk.  I have sent a query
to the Apollo list (since I work on one).  It was suggested that I use
some Unix services like fsync, flush and sio$force_write.  Well, I tried
using fsync but it didn't work.  I passed to it the DIRECT_IO.File_type
of the file, after converting it to File_ptr.  Note that File_type of
DIRECT_IO is defined as "new File_ptr".  I have not managed to interace to
the other services mentioned.
                                      Can you help me out?
                                                     Thank you,
                                                               JB
P.S.  I would very much appreciate if you would send one or two examples
      of Ada programs which access the GPR and GSR graphics routines of
      the Apollo workstation... :-)
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 (/        Jonathan B. Owen             Voice: (03) 281-422
 Point of view:  A chicken is the means by which an egg reproduces an egg.
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