#!/urs/bin/perl -w

use strict;
use warnings;
use IO::Socket;
use Tk;
use subs qw/read_sock/;

my $mw;
my $sel;
my $sock;
my $text;
my $line;
my $scriptname = "my_script.pl";

#some Tk 
$mw = MainWindow->new();
$text = $mw->Text->pack;
my $goButton = 
	$mw->Button(
		-text=> "Accept",
		-command => \&go

	)->pack(
		-side=>"left",
	);

#"polling" socket
$mw->repeat(50 => \&read_sock);

MainLoop;


sub read_sock{
	return unless $sock;
	my $hand = $sock;
	my @ready = $sel->can_read(0);
	return if $#ready == -1;
	$hand = $ready[0];
	my $numbytes = 1;
	my $buf;
	sysread $hand, $buf, $numbytes;
	print "read a $buf\n";
	$line .= $buf;
	if ($buf eq "\n"){
		if ($line eq "EOF\n"){
			undef $sel;
			undef $sock;
			undef $line;
			return;
		}
		$text->insert('end',"$line");
		undef $line;
	}
}

sub go{
	my $ProcessObj;	
	require Win32;
	require Win32::Process;
	Win32::Process::Create($ProcessObj,
		"c:\\perl\\bin\\perl.exe",
		"perl $scriptname",
		0,
		0,
		".")|| die ErrorReport();
	sleep 2; # let the script time to built the socket
	$sock = IO::Socket::INET->new(PeerAddr=> 'localhost:13579');
	die "cannot connect: $!\n" unless defined $sock;
	use IO::Select;
	$sel = IO::Select->new();
	$sel->add($sock);
}

##</code><code>##

#!/usr/bin/perl -w

use IO::Socket;
use strict;

my $socket = IO::Socket::INET->new(
	Listen		=> 5,
	Reuse		=> 1,
	LocalPort	=> 13579,
	Proto		=> 'tcp',
)||die "couldn't open socket : $!\n";

my $new_socket = $socket -> accept();

#so far so good

#if the is $something_to_say  
syswrite $new_socket, "$something_to_say\n";

##</code><code>##

END{
    syswrite $new_socket, "EOF\n";
}