before the loop

 $start = time;

at the end of the loop

last if time > $start + $duration;

(untested)

OR

 while ( time < $start + $duration)

instead of an endless loop.

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Wikisyntax for the Monastery

In reply to Re: timer in perl by LanX
in thread timer in perl by Anonymous Monk

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