check.js

function runCheck(host, cb) {
	console.log('Checking for life at ' + host + ' we checked '+ checks + ' times so far');
	var checkReq = http.get(host, function(res) {
		console.log("Got response: " + res.statusCode);
		ret = 'online';
		checkReq.clearTimeout();
		console.log('Timeout cleared and sending them on their way');
		cb(true); // we are solid
	}).on('error', function(e) {
		console.log('error' + e);
		turnOn();
		cb(false);
	});
	
	// I hate waiting.. Let's set a timeout
	checkReq.setTimeout( 4000, function( ) { // 4 seconds is usually enough
		console.log('I timed out bro, lets try to turn it on?');
		checkReq.abort();
		console.log('Aborted : moving to `turnOn()`');
		turnOn();

		cb(false);
	});
}