>Bruce wrote:
>I don't suppose FCONTROL 53 - 'Set Nonblock' would be an answer here by any
>chance?  I haven't tried it, but it allegedly will set a file so that it
>will return immediately if there is no data available to read.
 
Hmmm... I'll try this. I didn't notice it when I was trying to get this
stuff working the last time through.
 
>When I wrote my TELNET client once-uppon-a-time it appeared that even with
>typeahead turned on there were annoying timing windows where you would still
>lose
>characters if you tried to use the ABORT PENDING NOWAIT I/O fcontrol call to
>let
>you write 'around' a read you had pending on the port.
 
True; I noticed the same thing.
 
 I think there
>is an ATTACHIO mode that will actually write past a read though.
 
There is, but it aborts the read and throws away any accumulated data. I'm
not sure this is the desired result.
 
-- Bruce
 
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