public void Start()
{
DontDestroyOnLoad(this);
_State = new Disconnected(_Instance);
Application.runInBackground = true;
Initialize();
}
public void Disconnect()
{
if (Peer != null)
{
Peer.Disconnect();
}
State = new Disconnected(_instance);
}
public void Disconnect()
{
if(_Peer != null)
{
_Peer.Disconnect();
_State = new Disconnected(this);
}
}
public void Connect_Results_In_An_Invalid_Operation_Exception()
{
var _busConfigurationBuilder = new BusConfigurationBuilder();
_busConfigurationBuilder.ConnectionUris.Add(TestingConfiguration.LocalConnectionUri);
var _busConfirguration = _busConfigurationBuilder.Build();
var _connectionManager = Substitute.For<IConnectionManager>();
var _context = Substitute.For<IBusContext>();
var _SUT = new Disconnected(
_busConfirguration,
_connectionManager,
_context);
_SUT.Connect();
}
public void Publish_Where_No_Publication_Configurations_Which_Results_In_A_NoConfigurationFound_Result()
{
var _busConfigurationBuilder = new BusConfigurationBuilder();
_busConfigurationBuilder.ConnectionUris.Add(TestingConfiguration.LocalConnectionUri);
var _busConfirguration = _busConfigurationBuilder.Build();
var _connectionManager = Substitute.For<IConnectionManager>();
var _context = Substitute.For<IBusContext>();
var _SUT = new Disconnected(
_busConfirguration,
_connectionManager,
_context);
var _theEvent = new MyEvent(Guid.NewGuid(), null, "Some detail", 1);
var _publicationResult = _SUT.PublishAsync(_theEvent);
_publicationResult.Wait();
Assert.AreEqual(PMCG.Messaging.PublicationResultStatus.NoConfigurationFound, _publicationResult.Result.Status);
}
public void Ctor_Success()
{
var _busConfigurationBuilder = new BusConfigurationBuilder();
_busConfigurationBuilder.ConnectionUris.Add(TestingConfiguration.LocalConnectionUri);
_busConfigurationBuilder
.RegisterPublication<MyEvent>(
TestingConfiguration.ExchangeName,
typeof(MyEvent).Name);
var _busConfirguration = _busConfigurationBuilder.Build();
var _connectionManager = Substitute.For<IConnectionManager>();
var _context = Substitute.For<IBusContext>();
var _SUT = new Disconnected(
_busConfirguration,
_connectionManager,
_context);
Assert.IsNotNull(_SUT);
}
public Task StopHostAsync(bool waitForShutdown, CancellationToken cancellationToken = default(CancellationToken))
{
IsHostRunning = false;
Disconnected?.Invoke(this, EventArgs.Empty);
return(Task.CompletedTask);
}
private void OnDisconnected(object sender, MqttClientDisconnectedEventArgs eventArgs)
{
Disconnected?.Invoke(this, eventArgs);
}
public MultiplayerSessionManager(IClient client)
{
Log.Info("Initializing MultiplayerSessionManager...");
Client = client;
CurrentState = new Disconnected();
}
protected virtual void OnDisconnected()
{
DestroyWorkerFacade();
Disconnected?.Invoke(this, EventArgs.Empty);
}
/// <summary>
/// Triggered when client is disconnected
/// </summary>
protected virtual void OnDisconnected()
{
Disconnected?.Invoke(this);
}
protected virtual void OnDisconnected(EventArgs e)
{
Disconnected.SafeInvoke(this, e);
}
public void Dispose()
{
_Connection.Dispose();
Disconnected.Invoke("Being Disposed");
}
private void Tick(object sender, EventArgs e)
{
if (_datPort == null || !_datPort.IsOpen || PacketReceived == null)
{
return;
}
// Try to read some data from the COM port and append it to our localBuffer.
// If there's an IOException then the device has been disconnected.
try
{
int readCount = _datPort.BytesToRead;
if (readCount < 1)
{
return;
}
byte[] readBuffer = new byte[readCount];
_ = _datPort.Read(readBuffer, 0, readCount);
//_datPort.DiscardInBuffer();
_localBuffer.AddRange(readBuffer);
}
catch (IOException)
{
Stop();
Disconnected?.Invoke(this, EventArgs.Empty);
return;
}
// Try and find 2 splitting characters in our buffer.
int lastSplitIndex = _localBuffer.LastIndexOf(0x0A);
if (lastSplitIndex <= 1)
{
return;
}
int sndLastSplitIndex = _localBuffer.LastIndexOf(0x0A, lastSplitIndex - 1);
if (lastSplitIndex == -1)
{
return;
}
// Grab the latest packet out of the buffer and fire it off to the receive event listeners.
int packetStart = sndLastSplitIndex + 1;
int packetSize = lastSplitIndex - packetStart;
if (_printerMode)
{
byte[] array = _localBuffer.ToArray();
string lastCommand = Encoding.UTF8.GetString(array, 0, lastSplitIndex);
if (lastCommand.Contains("# Finished Pretending To Print for fun!") || lastCommand.Contains("// Timed Out (Memory Waterline: 4B out of 400B)"))
{
PacketReceived(this, new PacketDataEventArgs(_localBuffer.GetRange(0, lastSplitIndex).ToArray()));
// Clear our buffer up until the last split character.
_localBuffer.RemoveRange(0, lastSplitIndex);
}
}
else
{
PacketReceived(this, new PacketDataEventArgs(_localBuffer.GetRange(packetStart, packetSize).ToArray()));
// Clear our buffer up until the last split character.
_localBuffer.RemoveRange(0, lastSplitIndex);
}
}
private void Ws_OnClose(object sender, CloseEventArgs e)
{
_isDisposed = true;
Disconnected?.Invoke();
}
protected virtual void OnDisconnected(Exception e)
{
Dispose();
Disconnected?.Invoke(this, e);
}
public void State_Changed_Where_Connection_Is_Established_Results_In_Transition_To_Connected_State()
{
var _connectionEstablishedWaitHandle = new AutoResetEvent(false);
var _transitionBeingAttemptedWaitHandle = new AutoResetEvent(false);
var _busConfigurationBuilder = new BusConfigurationBuilder();
_busConfigurationBuilder.ConnectionUris.Add(TestingConfiguration.LocalConnectionUri);
var _busConfirguration = _busConfigurationBuilder.Build();
var _connectionManager = Substitute.For<IConnectionManager>();
var _context = Substitute.For<IBusContext>();
_connectionManager.IsOpen.Returns(true);
_connectionManager
.When(connectionManager => connectionManager.Open())
.Do(callInfo => { _connectionEstablishedWaitHandle.WaitOne(); });
var _SUT = new Disconnected(
_busConfirguration,
_connectionManager,
_context);
_context.State.Returns(callInfo => _SUT);
State _capturedState = null;
_context.When(context => context.State = Arg.Any<State>()).Do(callInfo =>
{
_capturedState = callInfo[0] as State;
_transitionBeingAttemptedWaitHandle.Set();
});
_connectionEstablishedWaitHandle.Set(); // Allow ConnectionManagers Open method to complete
_transitionBeingAttemptedWaitHandle.WaitOne(); // Wait on state transition completion
Assert.IsInstanceOf<Connected>(_capturedState);
}
public void Close_Results_In_Transition_To_Closed_State()
{
var _busConfigurationBuilder = new BusConfigurationBuilder();
_busConfigurationBuilder.ConnectionUris.Add(TestingConfiguration.LocalConnectionUri);
var _busConfirguration = _busConfigurationBuilder.Build();
var _connectionManager = Substitute.For<IConnectionManager>();
var _context = Substitute.For<IBusContext>();
var _SUT = new Disconnected(
_busConfirguration,
_connectionManager,
_context);
_context.State.Returns(callInfo => _SUT);
State _capturedState = null;
_context.When(context => context.State = Arg.Any<State>()).Do(callInfo => _capturedState = callInfo[0] as State);
_SUT.Close();
Assert.IsInstanceOf<Closed>(_capturedState);
_connectionManager.Received().Close();
}
private void OnDisconnect()
{
Disconnected?.Invoke(this, new SocketClientEventArgs());
}
/// <summary>
/// Raises the Disconnected event
/// </summary>
protected virtual void OnDisconnected()
{
Disconnected?.Invoke(this, EventArgs.Empty);
}
internal void CallDisconnected()
{
Task.Factory.StartNew(() => Disconnected?.Invoke(this, EventArgs.Empty));
}
private void DisconnectAndDispose()
{
Disconnected?.Invoke(this, null);
Dispose();
}
/// <summary>
/// To call the event <see cref="Disconnected"/>.
/// </summary>
private void RaiseDisconnected()
{
ConnectionState = ConnectionStates.Disconnected;
Disconnected?.Invoke();
}
private void onDisconnect(object sender, ConnEventArgs args)
{
Log.Info("Lost connection to NATS.");
Disconnected?.Invoke(this, EmptyServeEventArgs);
}
protected void OnDisconnected(INetworkLayerInterface sender, ConnectionEventArgs connectionEventArgs)
{
Disconnected?.Invoke(sender, connectionEventArgs);
}
/// <summary>
/// Raises client disconnected event
/// </summary>
protected virtual void ClientDisconnected(SocketBase client)
{
Disconnected?.Invoke((TClient)client);
}
protected void _invokeDisconnected(DisconnectArgs e)
{
Disconnected.Invoke(this, e);
}
public void Disconnect(DisconnectReason reason, string details)
{
Disconnected?.Invoke(this, EventArgs.Empty);
}
protected void OnDisconnected(NamedPipeConnection <Message, Message> connection)
{
Disconnected?.Invoke(connection);
}
public void AcceptCallback(IAsyncResult _asyncResult)
{
//Get the socket that handles the client request.
var _listenerSocket = (Socket)_asyncResult.AsyncState;
if (_listenerSocket == null)
{
return;
}
//Get clientSocket
try
{
decoderSocket = _listenerSocket.EndAccept(_asyncResult);
//Shutdown listener only one client allowed
listenerSocket.Close();
listenerSocket = null;
}
catch (Exception ex)
{
Logger.WriteDebug($"{decoderName}: {ex} -> {ex.Message}");
}
//Check Connection
if (decoderSocket == null || !decoderSocket.Connected)
{
Logger.WriteDebug($"{decoderName}: Disconnected");
decoderStatus = ConnectionStatus.ClientDisconnected;
//Raise event
Disconnected.RaiseEvent(this, null);
//Try to reconnect again;
Restart();
return;
}
//Start to receive
try
{
Logger.WriteDebug($"{decoderName}: Connection from {decoderSocket.RemoteEndPoint}");
decoderStatus = ConnectionStatus.ClientConnected;
restartAttempts = 0;
pingAttempts = 0;
//Send LoginString
Send(loginString);
// Begin receiving the data from the remote device.
var _state = new StateObject();
decoderSocket.BeginReceive(_state.Buffer, 0, StateObject.BufferSize, 0, ReceiveCallback, _state);
//Raise event
Connected.RaiseEvent(this, null);
}
catch (Exception ex)
{
Logger.WriteDebug($"{decoderName}: {ex} -> {ex.Message}");
}
}
/// <summary>
/// The ClientBase startup method.
/// </summary>
/// <returns></returns>
public async Task <ClientBase> StartAsync()
{
if (string.IsNullOrEmpty(ServerIP) || ServerPort <= 0)
{
Logger.Error("Cannot start as either server ip or port is invalid.");
return(this);
}
if (IsConnected)
{
Logger.Error("Client is already connected with the server.");
return(this);
}
int connTries = 0;
try {
await ClientSemaphore.WaitAsync().ConfigureAwait(false);
while (connTries < MAX_CONNECTION_RETRY_COUNT)
{
if (!Helpers.IsServerOnline(ServerIP))
{
Logger.Error($"Server is offline. RETRY_COUNT -> {connTries}");
connTries++;
continue;
}
try {
Connector = new TcpClient(ServerIP, ServerPort);
}
catch (SocketException) {
connTries++;
continue;
}
catch (Exception e) {
Logger.Exception(e);
break;
}
if (IsConnected)
{
break;
}
connTries++;
}
if (connTries >= MAX_CONNECTION_RETRY_COUNT && !IsConnected)
{
Logger.Error($"Could not connect with server even after {connTries} retry count.");
return(this);
}
if (!IsConnected)
{
Logger.Error($"Could not connect with server. Server might be offline or unreachable!");
return(this);
}
Logger.Info("Connected to server.");
Connected?.Invoke(this, new OnConnectedEventArgs(DateTime.Now, ServerIP, ServerPort));
Helpers.InBackgroundThread(async() => {
await ClientReceivingSemaphore.WaitAsync().ConfigureAwait(false);
while (IsConnected)
{
try {
NetworkStream?stream = Connector?.GetStream();
if (stream == null)
{
continue;
}
IsReceiving = true;
if (!stream.DataAvailable)
{
await Task.Delay(1).ConfigureAwait(false);
continue;
}
byte[] readBuffer = new byte[8000];
int dataCount = stream.Read(readBuffer, 0, readBuffer.Length);
if (dataCount <= 0 || readBuffer.Length <= 0)
{
await Task.Delay(1).ConfigureAwait(false);
continue;
}
string received = Encoding.ASCII.GetString(readBuffer);
if (string.IsNullOrEmpty(received))
{
await Task.Delay(1).ConfigureAwait(false);
continue;
}
BaseResponse receivedObj = JsonConvert.DeserializeObject <BaseResponse>(received);
if (PreviousResponse != null && PreviousResponse.Equals(receivedObj))
{
await Task.Delay(1).ConfigureAwait(false);
continue;
}
ResponseReceived?.Invoke(this, new OnResponseReceivedEventArgs(DateTime.Now, receivedObj, received));
PreviousResponse = receivedObj;
}
catch (SocketException s) {
Logger.Trace($"SOCKET EXCEPTION -> {s.SocketErrorCode.ToString()}");
break;
}
catch (Exception e) {
Logger.Error($"EXCEPTION -> {e.Message}");
continue;
}
}
ClientReceivingSemaphore.Release();
Logger.Info("Disconnected from server.");
IsReceiving = false;
Disconnected?.Invoke(this, new OnDisconnectedEventArgs(DateTime.Now, false, ServerIP, ServerPort, true));
}, "Client Receiving Thread", true);
return(this);
}
finally {
ClientSemaphore.Release();
}
}
public void ReceiveCallback(IAsyncResult _asyncResult)
{
// Retrieve the state object and the handler socket from the asynchronous state object.
var _state = (StateObject)_asyncResult.AsyncState;
if (_state == null || decoderSocket == null)
{
return;
}
var _socketError = new SocketError();
var _bytesRead = 0;
try
{
// Read data from the remote device.
_bytesRead = decoderSocket.EndReceive(_asyncResult, out _socketError);
//EndRecieve returns x bytes -> connection ok
if (_bytesRead > 0)
{
//Store the data received so far
_state.Data += Encoding.ASCII.GetString(_state.Buffer, 0, _bytesRead);
//Split each frame
var _dataArray = _state.Data.Split(new[]
{
decoderEtxString
}, StringSplitOptions.RemoveEmptyEntries);
if (_dataArray != null && _dataArray.Count() > 0)
{
//Loop through all frames
foreach (var _data in _dataArray)
{
Logger.WriteDebug($"{decoderName}: Message -> {_data}");
//Remove frame + etx from buffer
_state.Data = _state.Data.Replace(_data + decoderEtxString, "");
//Raise event
MessageReceived.RaiseEvent(this, new MessageEventArgs(_data));
}
}
if (decoderSocket != null && decoderSocket.Connected)
{
//Start receive again
decoderSocket.BeginReceive(_state.Buffer, 0, StateObject.BufferSize, 0, ReceiveCallback,
_state);
}
}
//EndRecieve returns 0 bytes -> connection have been closed by the remote endpoint.
else if (_bytesRead == 0 && decoderStatus == ConnectionStatus.ClientConnected)
{
Logger.WriteDebug($"{decoderName}: Connection closed from client");
//Raise event
Disconnected.RaiseEvent(this, null);
//Try to reconnect again;
Restart();
}
else if (_socketError != SocketError.Success)
{
Logger.WriteDebug($"{decoderName}: SocketError -> {_socketError}");
}
}
catch (Exception ex)
{
Logger.WriteDebug($"{decoderName}: Error on receive -> {ex.Message}");
//Raise event
Disconnected.RaiseEvent(this, null);
//Try to reconnect again;
Restart();
}
}
protected virtual void OnDisconnected()
{
Disconnected?.Invoke(this, new EventArgs());
}
public void OnStatusChanged(StatusCode statusCode)
{
print(statusCode.ToString());
switch (statusCode)
{
case StatusCode.Connect:
Peer.EstablishEncryption();
break;
case StatusCode.Disconnect:
case StatusCode.DisconnectByServer:
case StatusCode.DisconnectByServerLogic:
case StatusCode.DisconnectByServerUserLimit:
case StatusCode.ExceptionOnConnect:
case StatusCode.TimeoutDisconnect:
Controller.OnDisconnect("" + statusCode);
State = new Disconnected(_instance);
break;
case StatusCode.EncryptionEstablished:
State = new Connected(_instance);
break;
default:
Controller.OnUnexpectedStatusCode(statusCode);
State = new Disconnected(_instance);
break;
}
}
public void Start()
{
try
{
if (Regex.IsMatch(decoderServer,
@"^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$")
)
{
// the string is an IP
decoderIpAddress = IPAddress.Parse(decoderServer);
}
else if (Regex.IsMatch(decoderServer,
@"^(([a-zA-Z]|[a-zA-Z][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z]|[A-Za-z][A-Za-z0-9\-]*[A-Za-z0-9])$"))
{
// the string is a host
var _ipHostInfo = Dns.GetHostEntry(decoderServer);
decoderIpAddress = _ipHostInfo.AddressList[0];
}
else
{
Logger.WriteDebug($"{decoderName}: Wrong setting -> decoderServer");
Disconnected.RaiseEvent(this, null);
return;
}
if (decoderPort <= 0 || decoderPort >= 65535)
{
Logger.WriteDebug($"{decoderName}: Wrong setting -> decoderPort");
Disconnected.RaiseEvent(this, null);
return;
}
if (string.IsNullOrEmpty(decoderEtxString))
{
Logger.WriteDebug($"{decoderName}: Wrong setting -> decoderEtxString");
Disconnected.RaiseEvent(this, null);
return;
}
//Timer for auto reconnect
restartAttempts = 0;
restartTimer = new Timer
{
Interval = 1000, //will be increased in handler
AutoReset = false
};
restartTimer.Elapsed += reconnectTimer_Elapsed;
restartTimer.Stop();
//Timeout for receive
sendTimeout = new Timer
{
Interval = TIMEOUT_INTERVAL,
AutoReset = false
};
sendTimeout.Elapsed += sendTimeout_Elapsed;
sendTimeout.Stop();
//Connect to TCP/IP-Server
StartListening();
}
catch (Exception ex)
{
Logger.WriteDebug($"{decoderName}: {ex} -> {ex.Message}");
}
}
///<summary>Signals that the Subscription we use for receiving
///our RPC replies was disconnected while we were
///waiting.</summary>
///<remarks>
/// Fires the Disconnected event.
///</remarks>
public virtual void OnDisconnected()
{
Disconnected?.Invoke(this, null);
}
public void OnStatusChanged(StatusCode statusCode)
{
switch(statusCode)
{
case StatusCode.Connect:
_Peer.EstablishEncryption();
break;
case StatusCode.Disconnect:
case StatusCode.DisconnectByServer:
case StatusCode.DisconnectByServerLogic:
case StatusCode.DisconnectByServerUserLimit:
case StatusCode.ExceptionOnConnect:
case StatusCode.TimeoutDisconnect:
Controller.OnDisconnected("" + statusCode);
_State = new Disconnected(this);
break;
case StatusCode.EncryptionEstablished:
_State = new Connected(this);
break;
default:
Controller.OnUnexpectedStatusCode(statusCode);
_State = new Disconnected(this);
break;
}
}
private void OnDisconnected()
{
Disconnected?.Invoke(this);
}
private async Task Reconnect()
{
if (cts.Token.IsCancellationRequested)
{
return;
}
if (isReconnecting)
{
return;
}
isReconnecting = true;
tcpClient?.Dispose();
tcpClient = null;
if (reconnectFailed)
{
throw new InvalidOperationException("Reconnect failed");
}
if (wasConnected)
{
logger?.LogDebug("ModbusClient.Reconnect fire disconnected event.");
Task.Run(() => Disconnected?.Invoke(this, EventArgs.Empty)).Forget();
}
var timeout = 2;
var maxTimeout = 20;
var startTime = DateTime.UtcNow;
while (!cts.Token.IsCancellationRequested)
{
try
{
tcpClient = new TcpClient(AddressFamily.InterNetworkV6);
tcpClient.Client.DualMode = true;
var connectTask = tcpClient.ConnectAsync(Host, Port);
if (await Task.WhenAny(connectTask, Task.Delay(TimeSpan.FromSeconds(timeout), cts.Token)) == connectTask)
{
logger?.LogInformation("ModbusClient.Reconnect connected.");
tcpClient.SendTimeout = SendTimeout;
tcpClient.ReceiveTimeout = ReceiveTimeout;
}
else if (cts.Token.IsCancellationRequested)
{
logger?.LogWarning("ModbusClient.Reconnect was cancelled.");
return;
}
else
{
logger?.LogWarning($"ModbusClient.Reconnect failed to connect within {timeout} seconds.");
timeout += 2;
if (timeout > maxTimeout)
{
timeout = maxTimeout;
}
throw new SocketException((int)SocketError.TimedOut);
}
}
catch (SocketException) when(ReconnectTimeSpan == TimeSpan.MaxValue || DateTime.UtcNow <= startTime + ReconnectTimeSpan)
{
await Task.Delay(1000, cts.Token);
continue;
}
catch (Exception ex)
{
logger?.LogError(ex, "ModbusClient.Reconnect failed.");
reconnectFailed = true;
if (isDisposed)
{
return;
}
if (wasConnected)
{
throw new IOException("Server connection lost, reconnect failed", ex);
}
else
{
throw new IOException("Could not connect to the server", ex);
}
}
wasConnected = true;
logger?.LogDebug("ModbusClient.Reconnect fire connected event.");
Task.Run(() => Connected?.Invoke(this, EventArgs.Empty)).Forget();
break;
}
isReconnecting = false;
}
public virtual void OnServiceDisconnected(ComponentName name)
{
IsConnected = false;
Disconnected?.Invoke(name);
}