run webserver on all available cores, resolves #6

index.js

@@ -1,17 +1,20 @@
 
-var cluster = require('cluster'),
-      app = require('./app'),
-      multicore = false,
-      port = ( process.env.PORT || 3100 );
+var Cluster = require('cluster2'),
+    app = require('./app'),
+    port = ( process.env.PORT || 3100 ),
+    multicore = true;
 
 /** cluster webserver across all cores **/
-// if( multicore ){
-  // @todo: not finished yet
-  // cluster(app)
-  //   .use(cluster.stats())
-  //   .listen( process.env.PORT || 3100 );
-// } 
-if (!multicore){
-  console.log( 'listening on ' + port );
-  app.listen( process.env.PORT || 3100 );
+if( multicore ){
+  var c = new Cluster({ port: port });
+  c.listen(function(cb){
+    console.log( 'worker: listening on ' + port );
+    cb(app);
+  });
 }
+
+/** run server on the default setup (single core) **/
+else {
+  console.log( 'listening on ' + port );
+  app.listen( port );
+}

package.json

@@ -34,6 +34,7 @@
   },
   "dependencies": {
     "async": "^0.9.0",
+    "cluster2": "^0.4.26",
     "express": "^4.8.8",
     "geojson": "^0.2.1",
     "geojson-extent": "^0.3.1",