private async Task ProcessWSChat(AspNetWebSocketContext context)
        {
            WebSocket socket = context.WebSocket;

            if (!Listeners.Contains(socket))
            {
                Listeners.Add(socket);
            }
            while (true)
            {
                ArraySegment <byte> buffer = new ArraySegment <byte>(new byte[1024]);



                WebSocketReceiveResult result = await socket.ReceiveAsync(
                    buffer, CancellationToken.None);

                if (socket.State == WebSocketState.Open)
                {
                    string userMessage = Encoding.UTF8.GetString(
                        buffer.Array, 0, result.Count);


                    UserMessage msg = new UserMessage()
                    {
                        Message  = userMessage.Split(new char[] { ':' })[1],
                        UserName = userMessage.Split(new char[] { ':' })[0]
                    };

                    //await socket.SendAsync(buffer, WebSocketMessageType.Text, true, CancellationToken.None);
                    _db.AddMessage(msg.UserName, msg.Message);

                    var count   = 20;
                    var history = _db.THistory
                                  .Skip(_db.THistory.Count() - count)
                                  .Take(count)
                                  .ToList();

                    StringBuilder message = new StringBuilder(400);
                    //foreach (var item in history)
                    //{
                    //    message.Append(item.UserName + ":" + item.Message + ";");
                    //}

                    //buffer = new ArraySegment<byte>(
                    //    Encoding.UTF8.GetBytes(message.ToString()));

                    foreach (var listener in Listeners)
                    {
                        await listener.SendAsync(buffer, WebSocketMessageType.Text, true, CancellationToken.None);
                    }
                }
                else
                {
                    break;
                }
            }
        }
        public ActionResult NewMessage(UserMessage model)
        {
            if (model.UserName != null)
            {
                _db.AddMessage(model.UserName, model.Message);
            }

            return(RedirectToAction("Index"));
        }
        public void Send(string name, string message)
        {
            _db.AddMessage(name, message);

            Clients.All.addMessage(name, message);
        }