private void waitStateChange(HubConnectionState expectedState, int timeout, string errorMessage)
{
#if DEBUG
if (Debugger.IsAttached)
{
timeout = int.MaxValue;
}
#endif
var startWaiting = Environment.TickCount;
while (State != expectedState && Environment.TickCount - startWaiting < timeout)
{
Thread.Sleep(1);
}
if (Monitor.TryEnter(_sync, Math.Max(0, timeout - (Environment.TickCount - startWaiting))))
{
Monitor.Exit(_sync);
}
if (State != expectedState)
{
throw new TimeoutException(errorMessage);
}
}
public ChannelReader <IEnumerable <RedditEntry> > Feed(string feedId)
{
var channel = Channel.CreateUnbounded <IEnumerable <RedditEntry> >();
var connection = new HubConnectionState
{
ConnectionId = Context.ConnectionId,
FeedId = feedId,
StreamChannel = channel,
};
if (_feedService.TryGetFeed(feedId, out var feed))
{
var data = feed.GetData();
if (data.Count() > 0)
{
_ = connection.StreamChannel.Writer.WriteAsync(data);
connection.LastEntryName = feed.LastEntryName;
}
}
else
{
_feedService.AddFeed(feedId, new RedditFeed
{
Id = feedId
});
}
_stateService.AddConnection(connection);
return(channel.Reader);
}
public async Task <bool> ConnectWithRetryAsync(CancellationToken token)
{
// Keep trying to until we can start or the token is canceled.
while (true)
{
try
{
await _connection.StartAsync(token);
// Debug.Assert(_connection.State == HubConnectionState.Connected);
_logger.LogInformation($"The signalr client connected at {DateTime.Now.ToString()}");
state = HubConnectionState.Connected;
await _connection.InvokeAsync("JoinHub", _appSettings.MachineID);
return(true);
}
catch (Exception ex)
{
_logger.LogError(ex.Message);
// Failed to connect, trying again in 5000 ms.
// Debug.Assert(_connection.State == HubConnectionState.Disconnected);
await Task.Delay(5000);
_logger.LogInformation($"The signalr client is reconnecting at {DateTime.Now.ToString()}");
}
if (state == HubConnectionState.Connected)
{
return(true);
}
}
}
private async Task <bool> ConnectWithRetryAsync()
{
// Keep trying to until we can start or the token is canceled.
while (true)
{
try
{
await _client.StartAsync();
// Debug.Assert(_connection.State == HubConnectionState.Connected);
_logger.LogInformation($"The signalr client connected at {DateTime.Now.ToString()}");
state = HubConnectionState.Connected;
return(true);
}
catch
{
// Failed to connect, trying again in 5000 ms.
// Debug.Assert(_connection.State == HubConnectionState.Disconnected);
await System.Threading.Tasks.Task.Delay(3000);
_logger.LogInformation($"The signalr client is reconnecting at {DateTime.Now.ToString()}");
}
if (state == HubConnectionState.Connected)
{
return(true);
}
}
}
// Update is called once per frame
void Update()
{
if (_connection.State != _lastConnectionState)
{
Debug.Log($"Hub connection state changed from {_lastConnectionState} to {_connection.State}");
_lastConnectionState = _connection.State;
}
}
/// <summary>
/// Changes the state.
/// </summary>
/// <param name="state">State to change.</param>
private void SetStateChanged(HubConnectionState state)
{
_connectionState = state;
StateChanged?.Invoke(this, state);
if (state == HubConnectionState.Disconnected)
{
Disconnected?.Invoke(this, null);
}
}
private static State?MapToState(HubConnectionState state)
{
return(state switch
{
HubConnectionState.Disconnected => State.SignIn,
HubConnectionState.Connecting => State.Connecting,
HubConnectionState.Connected => State.Chatting,
HubConnectionState.Reconnecting => State.Connecting,
_ => null
});
/// <summary>
/// Changes the state.
/// </summary>
/// <param name="state">State to change.</param>
private void SetStateChanged(HubConnectionState state)
{
Logger.LogInformation(state.ToString());
_connectionState = state;
StateChanged?.Invoke(this, state);
if (state == HubConnectionState.Disconnected)
{
Disconnected?.Invoke(this, null);
}
}
public static async Task Subscribe()
{
if (HubConnectionState.Equals(ConnectionState.Open))
{
return;
}
var connection = await GetConnection().ConfigureAwait(false);
connection.On <TextMoodModel>(SignalRConstants.SendNewTextMoodModelName, textMoodModel =>
{
var textResultsListViewModel = GetTextResultsListViewModel();
textResultsListViewModel?.AddTextMoodModelCommand?.Execute(textMoodModel);
});
}
private void ClosedHub()
{
_client.Closed += async(error) =>
{
//await System.Threading.Tasks.Task.Delay(new Random().Next(0, 5) * 1000);
_logger.LogInformation($"Envent: Closed - The signalr client is restarting!");
state = HubConnectionState.Disconnected;
while (true)
{
if (await ConnectWithRetryAsync())
{
break;
}
}
};
}
private void ReconnectedHub()
{
_client.Reconnected += async(connectionId) =>
{
_logger.LogInformation($"Connection successfully reconnected. The ConnectionId is now: {connectionId}");
state = HubConnectionState.Connected;
while (true)
{
if (await ConnectWithRetryAsync())
{
break;
}
}
};
}
public bool IsHubConnected()
{
try
{
if (hubConnection == null)
{
ResetConnection();
}
HubConnectionState state = hubConnection.State;
return(state == HubConnectionState.Connected);
}
catch (Exception ex)
{
Crashes.TrackError(ex, Logic.GetErrorProperties(ex));
return(false);
}
}
private void ReconnectingHub()
{
_client.Reconnecting += async error =>
{
_logger.LogInformation($"Connection started reconnecting due to an error: {error.Message}");
_logger.LogInformation($"State Hub {_client.State} - State Global {state}");
if (_client.State == HubConnectionState.Reconnecting)
{
state = HubConnectionState.Disconnected;
}
while (true)
{
if (await ConnectWithRetryAsync())
{
break;
}
}
};
}
public StateChange(HubConnectionState oldState, HubConnectionState newState)
{
OldState = oldState;
NewState = newState;
}
public static void AttemptingStateTransition(ILogger logger, HubConnectionState expectedState, HubConnectionState newState)
{
_attemptingStateTransition(logger, expectedState, newState, null);
}
public static void StateTransitionFailed(ILogger logger, HubConnectionState expectedState, HubConnectionState newState, HubConnectionState actualState)
{
_stateTransitionFailed(logger, expectedState, newState, actualState, null);
}
public void AddConnection(HubConnectionState state)
{
_data.TryAdd(state.ConnectionId, state);
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
_connection = new HubConnectionBuilder()
.WithUrl(_appSettings.SignalrUrl)
.WithAutomaticReconnect()
.Build();
MyConsole.Info(JsonConvert.SerializeObject(_appSettings));
_connection.On <string, string, string>("Welcom", (scalingMachineID, message, unit) =>
{
if (scalingMachineID == _appSettings.MachineID.ToString())
{
var receiveValue = JsonConvert.SerializeObject(new
{
scalingMachineID,
message,
unit
});
MyConsole.Info($"#### ### Data => {receiveValue}");
}
});
_connection.Closed += async(error) =>
{
_logger.LogError(error.Message);
await Task.Delay(new Random().Next(0, 5) * 1000);
_logger.LogError($"Envent: Closed - The signalr client is restarting!");
await _connection.StartAsync();
};
_connection.Reconnecting += async error =>
{
_logger.LogInformation($"State Hub {_connection.State} - State Global {state}");
_logger.LogInformation($"Connection started reconnecting due to an error: {error.Message}");
if (_connection.State == HubConnectionState.Reconnecting)
{
state = HubConnectionState.Disconnected;
}
while (state == HubConnectionState.Disconnected)
{
if (await ConnectWithRetryAsync(stoppingToken))
{
break;
}
}
};
_connection.Reconnected += async(connectionId) =>
{
_logger.LogInformation($"Connection successfully reconnected. The ConnectionId is now: {connectionId}");
state = HubConnectionState.Connected;
while (true)
{
if (await ConnectWithRetryAsync(stoppingToken))
{
break;
}
}
};
while (state == HubConnectionState.Disconnected)
{
if (await ConnectWithRetryAsync(stoppingToken))
{
break;
}
}
_logger.LogInformation($"#### ### ClientId: {_connection.ConnectionId}");
string message;
StringComparer stringComparer = StringComparer.OrdinalIgnoreCase;
Thread readThread = new Thread(async() =>
await Read()
);
// Create a new SerialPort object with default settings.
_logger.LogInformation($"#### ### Serial Port is established");
_serialPort = new SerialPort();
// Allow the user to set the appropriate properties.
string port = _appSettings.PortName;
_serialPort.PortName = port;
string scanPortName = ScanPortName();
while (!port.Equals(scanPortName))
{
if (state == HubConnectionState.Connected)
{
_logger.LogWarning($"#### ### The system is scanning {port} at {DateTime.Now.ToString()}");
scanPortName = ScanPortName();
await Task.Delay(1000, stoppingToken);
}
}
_logger.LogInformation($"#### ### {port}");
_serialPort.ReadTimeout = 500;
_serialPort.WriteTimeout = 500;
_serialPort.Open();
_logger.LogWarning($"#### ### #### ### Serial Port is already open at {DateTime.Now.ToString()}");
_continue = true;
readThread.Start();
while (_continue)
{
// emit ve client
message = Console.ReadLine();
if (stringComparer.Equals("quit", message))
{
_continue = false;
}
else
{
//_serialPort.WriteLine(
// String.Format("<{0}>: {1}", name, message));
}
}
readThread.Join();
_serialPort.Close();
}
public HubStateChangeEventArgs(HubConnectionState state, Exception?exception)
{
State = state;
Exception = exception;
}
public static partial void AttemptingStateTransition(ILogger logger, HubConnectionState expectedState, HubConnectionState newState);
public static partial void StateTransitionFailed(ILogger logger, HubConnectionState expectedState, HubConnectionState newState, HubConnectionState actualState);