SPUG: Pull out of a blocking subroutine?

[Christopher Howard]

Hi. I'm still working on integrating LEGO::NXT into my project. Problem
I've hit though is that apparently there are no actual functions for
checking communication status with the robot.

There is other function I thought I could use to detect (implicitly) if
communication is still established. Problem is that they are /all/
blocking. Documentation basically says that the author hasn't got around
to making non-blocking functions yet, and I don't really have time to
reprogram his module myself.

So, my perverted, evil question: Is there some hackish way to pull out
of a blocking subroutine? Say, if it has returned after three seconds or
something like that?

-- 
Christopher Howard
http://indicium.us
http://theologia.indicium.us
http://robots.arsc.edu

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