Perl IO::Async parallel tcp connections - perl

Question

I've got a problem that I can't easily find the solution to for some reason.
I try to build multiple parallel TCP connections to a server via IO::Async.
My goal is to run TCP connections in parallel. The connections do not need to communicate between themselves but I need to catch and save output of them in a hash.
The following code is an example with a single connection.
#!/usr/bin/perl
use strict;
use warnings;
use IO::Async::Loop;
use IO::Async::Stream;
my $CRLF = "\x0d\x0a"; # because \r\n is not portable
my $HOST = shift #ARGV or die "Need HOST";
my $PORT = shift #ARGV or die "Need PORT";
my $loop = IO::Async::Loop->new;
my $socket;
$loop->connect(
host => $HOST,
service => $PORT,
socktype => 'stream',
on_connected => sub { $socket = shift },
on_resolve_error => sub { die "Cannot resolve - $_[0]\n" },
on_connect_error => sub { die "Cannot connect\n" },
);
$loop->loop_once until defined $socket;
# $socket is just an IO::Socket reference
my $peeraddr = $socket->peerhost . ":" . $socket->peerport;
print STDERR "Connected to $peeraddr\n";
# We need to create a cross-connected pair of Streams. Can't do that
# easily without a temporary variable
my ( $socketstream, $stdiostream );
$socketstream = IO::Async::Stream->new(
handle => $socket,
on_read => sub {
my ( undef, $buffref, $eof ) = #_;
while( $$buffref =~ s/^(.*)$CRLF// ) {
$stdiostream->write( $1 . "\n" );
}
return 0;
},
on_closed => sub {
print STDERR "Closed connection to $peeraddr\n";
$stdiostream->close_when_empty;
},
);
$loop->add( $socketstream );
$stdiostream = IO::Async::Stream->new_for_stdio(
on_read => sub {
my ( undef, $buffref, $eof ) = #_;
while( $$buffref =~ s/^(.*)\n// ) {
$socketstream->write( $1 . $CRLF );
}
return 0;
},
on_closed => sub {
$socketstream->close_when_empty;
},
);
$loop->add( $stdiostream );
$loop->await_all( $socketstream->new_close_future, $stdiostream->new_close_future );
How could I modify this code to handle an IP list as asynchronous connections and store output in a dedicated hash?
Finally maybe to limit max parallel connection to 100.
Any ideas?