And so you can see it in action, here's a test/demonstration script for this module.

#!/usr/bin/perl -w

#
# Test of Alarm::Queued - Written by Cory Johns (c) 2001
#

++$|;

BEGIN {
  # This will be saved and activated when
  # Alarm::Queued is imported.
  alarm(1);
  $SIG{ALRM} = sub { print "Legacy alarm." };
}

use Alarm::Queued qw( :OVERLOAD :ALL );

setalarm(2, sub { print "bing" });

alarm(4);
sethandler(sub { print "bong" });

# This alarm _must_ wait
# for the previous one.
setalarm(3, sub { print "!" });

MyPack::doalarm();

package MyPack;

sub doalarm {
  # Alarm is overridden in _all_ namespaces.
  alarm(6);
  # $SIG{ALRM} has been taken over.
  # It now calls sethandler().
  $SIG{ALRM} = sub { print "BANG!!!" };
}


#*******************************************#

package main;

for(1..6) {
  print "Second $_... ";
  sleep 1;
  print "\n";
}
[download]

bbfu
Seasons don't fear The Reaper.
Nor do the wind, the sun, and the rain.
We can be like they are.