CDE

Task/Distributed-programming/Perl/distributed-programming.pl

@@ -0,0 +1,43 @@
+use Data::Dumper;
+use IO::Socket::INET;
+use Safe;
+
+sub get_data {
+	my $sock = new IO::Socket::INET
+		LocalHost =>	"localhost",
+		LocalPort =>	"10000",
+		Proto =>	"tcp",
+		Listen =>	1,
+		Reuse =>	1;
+	unless ($sock) { die "Socket creation failure" }
+	my $cli = $sock->accept();
+
+	# of course someone may be tempted to send you 'system("rm -rf /")',
+	# to be safe(r), use Safe::
+	my $safe = new Safe;
+	my $x = $safe->reval(join("", <$cli>));
+	close $cli;
+	close $sock;
+	return $x;
+}
+
+sub send_data {
+	my $host = shift;
+	my $data = shift;
+	my $sock = new IO::Socket::INET
+		PeerAddr =>	"$host:10000",
+		Proto =>	"tcp",
+		Reuse =>	1;
+
+	unless ($sock) { die "Socket creation failure" }
+
+	print $sock Data::Dumper->Dump([$data]);
+	close $sock;
+}
+
+if (@ARGV) {
+	my $x = get_data();
+	print "Got data\n", Data::Dumper->Dump([$x]);
+} else {
+	send_data('some_host', { a=>100, b=>[1 .. 10] });
+}