simple chat server by using AnyEvent

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

use AnyEvent;
use AnyEvent::Socket qw/tcp_server/;
use AnyEvent::Handle;

my %conns;

my $gaurd = tcp_server undef, 8191, sub {
    my ($fh, $host, $port) = @_;
    my $hdl = AnyEvent::Handle->new(
        fh => $fh,
    );
    $hdl->push_write("; you have " . scalar(keys %conns) . " buddies\015\012");
    my $id = "$host:$port";
    $conns{$id} = $hdl;
    my $reader; $reader = sub {
        my $line = $_[1];
        for my $xid (grep {$_ ne $id} keys %conns) {
            $conns{$xid}->push_write("$id $line\015\012");
        }
        $hdl->push_read( line => $reader );
    };
    $hdl->push_read( line => $reader );
};

AnyEvent->condvar->recv;