cleanup and adding feature

Author: sweemeng

app.js

@@ -4,18 +4,21 @@
  */
 
 var express = require('express'),
-    app = express.createServer(),
+    app     = express.createServer(),
     io      = require('socket.io').listen(app),
-    ejs     = require('ejs');
-
+    ejs     = require('ejs'),
+    os      = require('os');
 
+var prev = 0
+var curr = 0
 // Configuration
 
 app.configure(function(){
     app.register('.html',require('ejs'));
   app.set('views', __dirname + '/views');
   app.set('view engine', 'html');
   app.use(app.router);
+  app.use(express.bodyParser());
   app.use(express.static(__dirname + '/public'));
 });
 
@@ -26,7 +29,7 @@ io.configure(function() {
 io.of('/data').on('connection',function(socket){
     socket.emit('hello',{ data: 'hello'});
     socket.on('received',function(data){
-        var value = Math.random() * 11;
+        var value = os.loadavg()[0];
         socket.emit('send',{ data: value});
 
     });
@@ -40,5 +43,6 @@ app.get('/', function(req, res){
   });
 });
 
+
 app.listen(3000);
 console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);

public/js/grapher.js

@@ -3,7 +3,7 @@ var graph_data = []
 var result = [];
 var options = {
         series: { shadowSize: 0 }, // drawing is faster without shadows
-        yaxis: { min: 0, max: 50 },
+        yaxis: { min: 0, max: 2 },
         xaxis: { show: false }
     };
 socket.on('connect',function(data){
@@ -24,7 +24,7 @@ socket.on('connect',function(data){
             result = result.slice(-10);
         }
         plot.draw();
-        setTimeout("",5000);
+        setTimeout("",60000);
         socket.emit('received',data);
     });