#!/usr/bin/perl
use warnings;
use strict;
use IO::Socket;
use IO::Select;

my @sockets;
my $machine_addr = 'localhost';
my $main_sock = new IO::Socket::INET(LocalAddr=>$machine_addr,
      LocalPort=>1200,
      Proto=>'tcp',
      Listen=>3,
            Reuse=>1,
            );

die "Could not connect: $!" unless $main_sock;
print "Starting Server\n";

my $readable_handles = new IO::Select();
$readable_handles->add($main_sock);

while (1)
{
  
######################################################################
   #this line caused 100% cpu usage ( thanks to BrowserUk for pointing this out)
   #my ($new_readable) = IO::Select->select($readable_handles, undef, undef, 0 );
   #should be
   my ($new_readable) = IO::Select->select($readable_handles, undef, undef, undef );
####################################################################
  foreach my $sock (@$new_readable)
  {
    if ($sock == $main_sock)
    {
      my $new_sock = $sock->accept();
      $readable_handles->add($new_sock);
    }
    else
    {
   
     my $count = sysread $sock, my $buf, 1024; 
   
      print "$count\n";
   
      if ($buf)
      { 
        print "$buf\n";
        my @sockets = $readable_handles->can_write(1);
	print "@sockets\n";
	#print $sock "You sent $buf\n";
	foreach my $sck(@sockets){print $sck "$buf\n";}
		
      }
      else
      {
        $readable_handles->remove($sock);
        close($sock);
      }
    }
  }

}
print "Terminating Server\n";
close $main_sock;
getc();