Hello world/Web server
Using the low-level Socket object:
var port = 8080;
var protocol = Socket.getprotobyname("tcp");
var sock = (Socket.open(Socket.PF_INET, Socket.SOCK_STREAM, protocol) || die "couldn't open a socket: #{$!}");
# PF_INET to indicate that this socket will connect to the internet domain
# SOCK_STREAM indicates a TCP stream, SOCK_DGRAM would indicate UDP communication
sock.setsockopt(Socket.SOL_SOCKET, Socket.SO_REUSEADDR, 1) || die "couldn't set socket options: #{$!}";
# SOL_SOCKET to indicate that we are setting an option on the socket instead of the protocol
# mark the socket reusable
sock.bind(Socket.sockaddr_in(port, Socket.INADDR_ANY)) || die "couldn't bind socket to port #{port}: #{$!}";
# bind our socket to $port, allowing any IP to connect
sock.listen(Socket.SOMAXCONN) || die "couldn't listen to port #{port}: #{$!}";
# start listening for incoming connections
while (var client = sock.accept) {
client.print ("HTTP/1.1 200 OK\r\n" +
"Content-Type: text/html; charset=UTF-8\r\n\r\n" +
"<html><head><title>Goodbye, world!</title></head>" +
"<body>Goodbye, world!</body></html>\r\n");
client.close;
}
A more friendly interface, using the IO::Socket::INET library:
var inet = require('IO::Socket::INET');
var sock = inet.new( LocalAddr => "127.0.0.1:8080",
Listen => 1,
Reuse => 1,
);
while (var client = sock.accept) {
client.print ("HTTP/1.1 200 OK\r\n" +
"Content-Type: text/html; charset=UTF-8\r\n\r\n" +
"<html><head><title>Goodbye, world!</title></head>" +
"<body>Goodbye, world!</body></html>\r\n");
client.close;
}