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#!/usr/bin/perl
use strict;
use warnings;
use Getopt::Long;
use IO::Async::Loop;
use IO::Async::Listener;
my $PORT = 12345;
my $FAMILY;
my $V6ONLY;
GetOptions(
'port|p=i' => \$PORT,
'4' => sub { $FAMILY = "inet" },
'6' => sub { $FAMILY = "inet6" },
'v6only=i' => \$V6ONLY,
) or exit 1;
my $loop = IO::Async::Loop->new;
my $listener = IO::Async::Listener->new(
on_stream => sub {
my $self = shift;
my ( $stream ) = @_;
my $socket = $stream->read_handle;
my $peeraddr = $socket->peerhost . ":" . $socket->peerport;
print STDERR "Accepted new connection from $peeraddr\n";
$stream->configure(
on_read => sub {
my ( $self, $buffref, $eof ) = @_;
while( $$buffref =~ s/^(.*\n)// ) {
# eat a line from the stream input
$self->write( $1 );
}
return 0;
},
on_closed => sub {
print STDERR "Connection from $peeraddr closed\n";
},
);
$loop->add( $stream );
},
);
$loop->add( $listener );
$listener->listen(
service => $PORT,
socktype => 'stream',
family => $FAMILY,
v6only => $V6ONLY,
)->on_done( sub {
my ( $listener ) = @_;
my $socket = $listener->read_handle;
printf STDERR "Listening on %s:%d\n", $socket->sockhost, $socket->sockport;
})->get;
$loop->run;
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