Server.DataStorage.GetUniqueNumber C# (CSharp) 메소드

        public static int GetUniqueNumber()
        {
            LoadNumber();
            IncrementNumber();
            return unique_number;
        }

        public void recievePacketHistory(List <Tuple <int, int, int, int, int, int, int> > list, string username)
        {
            Session session = new Session(list, username);

            //write file
            var file = File.Open(AppDomain.CurrentDomain.BaseDirectory + username + DataStorage.GetUniqueNumber() + ".session", FileMode.Create);

            BinaryFormatter formatter = new BinaryFormatter();

            formatter.Serialize(file, session);
            file.Close();
        }