title: Keeping informed the data source of table view in view controller class from a singleton class
body: <p>i have stumbled upon with the problem that i must update my data source in view controller class from singleton <code>TCPConnection</code> class. I have the callback function of server in singleton <code>TCPConnection</code> class but when i receive data i must update the data source of table view in view controller class. Can you offer a solution for this scenario, thanks in advance.</p>