OK, that code doesn't block.

Trying...

Hey, I managed to make it work! :-D

I had tried the can_read before, but only now did it work (probably I was doing something differently than what you suggested).

Thanks, runrig.

Since I had a lot of trouble finding this information, I'll put here the script I have working at the moment so that others may solve this problem faster in the future:

#!/usr/bin/perl -w
use strict;

use IO::Socket;
use IO::Select;

my $sock=new IO::Socket::INET (Localhost => '127.0.0.1',
                               LocalPort => '4000',
                               Proto => 'tcp',
                               Listen => 5,
                               ReuseAddr => 1,
                              );

die "Socket could not be created. Reason $!" unless $sock;

my $select = IO::Select->new();
$select->add($sock);

while (my @sockets = $select->can_read()) {
  for my $incoming (@sockets) {
    if ($incoming == $sock) {
      my $new_sock = $incoming->accept;
      $select->add($new_sock);
    }
    else {
      print "new guy calling: $incoming\n";
    }
  }
}

close($sock);
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