Path: utzoo!attcan!uunet!convex!killer!vector!rpp386!jfh
From: jfh@rpp386.UUCP (John F. Haugh II)
Newsgroups: comp.unix.questions
Subject: Re: how to poll keyboard
Summary: O_NDELAY or pick a VTIME value
Message-ID: <5005@rpp386.UUCP>
Date: 5 Aug 88 13:24:49 GMT
References: <5065@husc6.harvard.edu>
Reply-To: jfh@rpp386.UUCP (The Beach Bum)
Organization: Big "D" Home for Wayward Hackers
Lines: 13

In article <5065@husc6.harvard.edu> nakada@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.
-- 
John F. Haugh II                 +--------- Cute Chocolate Quote ---------
HASA, "S" Division               | "USENET should not be confused with
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DOMAIN: jfh@rpp386.uucp          |         -- apologizes to Dennis O'Connor