From: karl_brodowsky@...
Date: 2006-03-28T07:58:54+09:00
Subject: Re: input without blocking

There should be methods on Unix and Linux using select or something
like that.  At least Unix and Posix provide the functionality you are
asking already at OS-level, so it is just a matter of if and how to
access this from Ruby.  I would prefer this OS-dependent approach.