sub go{
    shift if UNIVERSAL::isa($_[0] => __PACKAGE__);
  FORK: {
      if ($child = fork) {
      }elsif (defined $child) {
	  my $exec = "/usr/local/bin/monster -i$id $filePath$file &";
	  qx/$exec/; 
      }elsif ($! == EAGAIN) {
	  sleep 5;
	  redo FORK;
      }else {
	  die "Can't fork: $!\n";
      }
  }
return 0; #just to say 'done'.
}