#!/usr/bin/perl
use strict;
use warnings;
use IO::Async::Loop;
use IO::Async::Stream;
use IO::Async::Listener;
my $PORT = 12345;
my $loop = IO::Async::Loop->new;
my $listener = IO::Async::Listener->new(
on_accept => sub {
my $self = shift;
my ( $socket ) = @_;
# $socket is just an IO::Socket reference
my $peeraddr = $socket->peerhost . ":" . $socket->peerport;
my $clientstream = IO::Async::Stream->new(
write_handle => $socket,
);
$loop->add( $clientstream );
$clientstream->write( "Your address is " . $peeraddr . "\n" );
$loop->resolver->getnameinfo(
addr => $socket->peername,
on_resolved => sub {
my ( $host, $service ) = @_;
$clientstream->write( "You are $host:$service\n" );
$clientstream->close_when_empty;
},
on_error => sub {
$clientstream->write( "Cannot resolve your address - $_[-1]\n" );
$clientstream->close_when_empty;
},
);
},
);
$loop->add( $listener );
$listener->listen(
service => $PORT,
socktype => 'stream',
)->on_done( sub {
my ( $listener ) = @_;
my $socket = $listener->read_handle;
printf STDERR "Listening on %s:%d\n", $socket->sockhost, $socket->sockport;
})->get;
$loop->run;