title: SRWebsocket notification when send finished
body: <p>I am trying to sync read and write operations when using Socket Rocket websocket library for iOS.</p>
  
  <p>When reading packets is finished I get a call to DidReceiveMessage is called, however, I cannot find a way to get notified once a send: operation ends.</p>
  
  <p>Is there a way to do this ?</p>
  
  <p>Thank you</p>