Fixed issue with server not emitting message in unixSocket example

example/unixSocket/basic/world-server.js

@@ -16,7 +16,8 @@ ipc.serve(
             'message',
             function(data,socket){
                 ipc.log('got a message : '.debug, data);
-                socket.emit(
+                ipc.server.emit(
+                    socket,
                     'message',
                     data+' world!'
                 );
@@ -27,4 +28,4 @@ ipc.serve(
 
 ipc.server.define.listen.message='This event type listens for message strings as value of data key.';
 
-ipc.server.start();
+ipc.server.start();