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|
#!/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->resolve(
type => 'getnameinfo',
data => [ $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_resolve_error => sub { die "Cannot resolve - $_[0]\n"; },
on_listen_error => sub { die "Cannot listen\n"; },
);
$loop->loop_forever;
|
