gistfile1.js

/home/rgenthner/projects/system_monitor/server/server.js:41
io.addListener("connect":function(conn){
                        ^
SyntaxError: Unexpected token :
    at Module._compile (node.js:465:37)
    at Module._loadScriptSync (node.js:476:10)
    at Module.loadSync (node.js:346:12)
    at Object.runMain (node.js:529:24)
    at node.js:759:10
rgenthner@castine:~/projects/system_monitor/server$ cat server.js 
var sys = require('sys'),
	http = require('http'),
	io = require('lib/socket.io/socket.io.js');

var iostat = require('child_process').spawn("iostat",["-w 1"]);
var httpd = http.createServer();

function format (data){
	var output_data = data.toString();
	sys.log(output_data);
	header = 'disk0         cpu      load average';
	if (output_data.match(header)){
		sys.log("ignore header");
	}else{
		var output_array = output_data.replace(/^\s+|\s+$/g,"").split(/\s+/);
		for (var i=0; i < output_array.length; i++){
			output_array[i] = parseFloat( output_array[i]);
		};
		output_hash = {
			date:new Date(),
			disk: {
				kbt:output_array[0],
				tps:output_array[1],
				mbs:output_array[2]
			},
			cpu:{
				us:output_array[3],
				sy:output_array[4],
				id:output_array[5]
			},
			load_average:{
				m1:output_array[6],
				m5:output_array[7],
				m15:output_array[8]
			}
		}
		return JSON.stringify(output_hash);
	}
}

io.addListener("connect":function(conn){
	sys.log("opened connection: "+conn.id);
	io.send(conn.id, "Connected as: "+conn.id);
	iostat.stdout.on('data', function (data){
		sys.log(typeof(data));
		sys.log('stdout: ' + data);
		sys.log('stdout: ' + format(data));
		io.send(conn.id, format(data));
	});
	io.send(conn.id, "Connected as: "+conn.id);
});

io.addLister("close", function(conn){
		sys.log("closed connection: "+conn.id);
		conn.broadcast("<"+conn.id+"> disconnected");
});

io.listen(httpd)