how to poll keyboard

[John F. Haugh II]

In article <5065 at husc6.harvard.edu> nakada at husc8.UUCP (Paul Nakada) writes:
>
>I am in need of a way to read a terminal keyboard without
>stopping if there is no keypress...

open the file with O_NDELAY.  or, you can use the VTIME/VMIN feature and
try a few different values.  there is, however, no way to tell (in general)
if a key is _currently_ being pressed.
-- 
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