This code works great in perl 5.10.0, but does not run in 5.8.8. Is there a Monk who can advise how to achieve the same effect using the older Perl? The 5.8.8 in question has ithreads, not 5005threads (specifying use Thread gives ithreads):

The end goal is code that alerts if a thread (which will run some blocking I/O) runs too slowly or too long. 

#!/usr/bin/perl
use strict;
use warnings;
use threads;

my $thread1 = threads::async  {
    my $sleep = int(rand() * 5);
    print("Thread sleeping $sleep seconds\n");
    sleep($sleep);
    return($sleep);
};
sleep(2);
if( $thread1->is_running() ) {
   print("Alert!  That thread took more than 2 seconds!\n");
} else {
   print("No problem\n");
}
print "Thread eventually returned ".$thread1->join()."\n";

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This is a reformulated version of 777702

In reply to $thread->is_running() in perl 5.8.8 - catching slow threads by brycen

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