public static void RemovePlayerConnection(PokerUser p, PokerUserConnection pc)
 {
     lock (_locker)
     {
         _connectionList.Remove(p);
     }
 }
 public static void AddPlayerConnection(PokerUser p, PokerUserConnection pc)
 {
     lock (_locker)
     {
         _connectionList.Add(p, pc);
     }
 }