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

my $up_bound = 10;

my $final_result = parallel_with_poe($up_bound);


sub parallel_with_poe {

$ubound = shift;
POE::Session->create(
    inline_states => {

	 # How can I pass the parameter correctly here?
         _start         => Function_1($_KERNEL,$ubound);
         to_wait        => sub { $_[KERNEL]->(delay (tick=>2)); }
         run_function_2 => Function_2($_KERNEL,$ubound);

	 # This ain't right also, I don't know
	 # how to pass  the above result into the function
	 _stop          => final_sum($_KERNEL,$ubound); 
		         
    },
);

$poe_kernel->run();
return;  # how to return the final value?
#exit(0);
}


sub final_sum {
    my ($kernel,$ans_of_f1, $ans_of_f2) = @_;
    my $sum = $ans_of_f1+$ans_of_f2;
	return $sum;
}


sub Function_1 {
	my ($kernel_f1, $up_bound1) = @_;
	
	my $total_f1;
	foreach  my $in ( 0 .. $up_bound1) {
            $total_f1 += $in/3;
	}
	return $total_f1;
}

sub Function_2 {
	my ($kernel_2,$up_bound2) = @_;
	
	my $total_f2;
	foreach  my $in (0 .. $up_bound2) {
 		  $total_f2 += $in;
	}
	return $total_f2;