Hola Monks, I ealier had a question related to threads, where somebody recommend I use forks instead. Another person recommended I use the Parallel::ForkManager module. I got a test script up and running with it, (very easy) but I do not how to get the return values. Please help! :) 
#!/usr/bin/perl
#Script to test out the Parallel::ForkManager module
use strict;
use Parallel::ForkManager;

%Test_hash=("A",1,"B",2,"C",3,"D",4);

#Start the Parrel Fork Manager
my $pfm = new Parallel::ForkManager($max_threads);
# Setup a callback for when a child finishes up so we can
# get it's exit code
$pfm->run_on_finish(
    sub {
            my ($pid, $exit_code, $ident) = @_;
        print $pid . "\n";
#              print "** $ident just got out of the pool ".
#              "with PID $pid and exit code: $exit_code\n";
      }

  );
my $line="";
my $child="";
my %Values=();
foreach $line(keys %Test_hash)
{
    # Forks and returns the pid for the child:
    my $pid = $pfm->start($line) and next;
    $Values{$pid}=&Test_fork($line, $Test_hash{$line});
    $pfm->finish($child); # Terminates the child proces
}

sub Test_function
{
  my ($a,$b)=@_
  my $c = $a * $b;
  return $c;
}

[download]
How do I get the return values of the Subfunction I fork off?? In the $pfm->run_on_finish section??

In reply to Parallel::ForkManager question by crackotter

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.