namespace: fix emit

lib/namespace.js

@@ -187,18 +187,21 @@ Namespace.prototype.emit = function(ev){
   if (~exports.events.indexOf(ev)) {
     emit.apply(this, arguments);
   } else {
-    for (var i = 0; i < this.sockets.length; i++) {
-      var socket = this.sockets[i];
-      this.rooms.forEach(function(room){
-        socket.to(room);
-      });
-      this.flags.forEach(function(flag){
-        socket = socket[flag];
-      });
-      socket.emit.apply(socket, arguments);
+    // set up packet object
+    var args = Array.prototype.slice.call(arguments);
+    var packet = { type: parser.EVENT, data: args };
+
+    if ('function' == typeof args[args.length - 1]) {
+      throw new Error('Callbacks are not supported when broadcasting');
     }
-    if (this.flags.length) this.flags = [];
-    if (this.rooms.lenth) this.rooms = [];
+
+    this.adapter.broadcast(packet, {
+      rooms: this.rooms,
+      flags: this.flags
+    });
+
+    delete this.rooms;
+    delete this.flags;
   }
   return this;
 };