private void RaisePortsChangedIfNecessary(SerialPortServiceEventType eventType)
{
lock (_lock)
{
string[] availableSerialPorts = GetPortNames();
if (!_previousSerialPorts.SequenceEqual(availableSerialPorts))
{
_previousSerialPorts = availableSerialPorts;
PortsChanged?.Invoke(this, new PortsChangedArgs(eventType, _previousSerialPorts));
}
}
}
private void RaisePortsChangedIfNecessary(EventType eventType)
{
lock (_serialPortNames)
{
var availableSerialPorts = GetAvailableSerialPortNames();
if (!_serialPortNames.SequenceEqual(availableSerialPorts))
{
_serialPortNames = availableSerialPorts;
PortsChanged?.Invoke(this, new PortsChangedArgs(eventType, _serialPortNames));
}
}
}
private static void RaisePortsChangedIfNecessary(EventType eventType)
{
lock (_serialPorts)
{
var availableSerialPorts = GetAvailableSerialPorts();
if (!_serialPorts.SequenceEqual(availableSerialPorts))
{
var changes = eventType == EventType.Removal ? _serialPorts.Except(availableSerialPorts) : availableSerialPorts.Except(_serialPorts);
_serialPorts = availableSerialPorts;
PortsChanged?.Invoke(null, new PortsChangedArgs(eventType, _serialPorts, changes.ToArray()));
}
}
}
public async Task Connect(string userName, string password, CancellationToken token)
{
if (ConnectionClosed.IsCancellationRequested || webSocket != null)
{
throw new Exception("Connection is already closed/opened");
}
Trace.WriteLine(Invariant($"Logging to {DeviceIP} with {sessionId}"));
var postUrl = new Uri($"http://{DeviceIP}/login.cgi");
string formDataString = $"username={WebUtility.UrlEncode(userName)}&password={WebUtility.UrlEncode(password)}";
HttpWebRequest request = CreateFormWebRequest(postUrl, formDataString, "POST");
string response = await ProcessRequest(request, token).ConfigureAwait(false);
if (response.Contains("Invalid credentials"))
{
throw new Exception("Invalid Credentails.");
}
else if (response.Length > 0)
{
string errorMessage = Invariant($"Login Failed with {response}");
throw new Exception(errorMessage);
}
Trace.TraceInformation(Invariant($"Logged to {DeviceIP} with {sessionId}"));
await UpdateAllSensorData(token);
List <SensorData> changed = new List <SensorData>();
foreach (var data in GetSensorData())
{
changed.Add(data.Value.Clone());
}
PortsChanged?.Invoke(this, changed);
var socketsUrl = $"ws://{DeviceIP}:7681/?c={sessionId}";
webSocket = new WebSocket(socketsUrl, "mfi-protocol");
webSocket.ReceiveBufferSize = 64 * 1024; // 64k
webSocket.Opened += WebSocket_Opened;
webSocket.MessageReceived += WebSocket_MessageReceived;
webSocket.Error += WebSocket_Error;
webSocket.Closed += WebSocket_Closed;
webSocket.Open();
Trace.WriteLine(Invariant($"Created WebSocket to {DeviceIP}"));
}
private static void RaisePortsChangedIfNecessary(EventType eventType)
{
lock (_serialPorts) {
var availableSerialPorts = GetAvailableSerialPorts();
if (eventType == EventType.Insertion)
{
var added = availableSerialPorts.Except(_serialPorts).ToArray();
_serialPorts = availableSerialPorts;
PortsChanged?.Invoke(null, new PortsChangedArgs(eventType, added));
}
else if (eventType == EventType.Removal)
{
var removed = _serialPorts.Except(availableSerialPorts).ToArray();
_serialPorts = availableSerialPorts;
PortsChanged?.Invoke(null, new PortsChangedArgs(eventType, removed));
}
}
}
private void CheckForNewPortsAsync()
{
IEnumerable <string> ports = SerialPort.GetPortNames().OrderBy(s => s);
foreach (string comPort in ComPorts.ToList())
{
if (!ports.Contains(comPort))
{
ComPorts.Remove(comPort);
}
}
foreach (var port in ports.ToList())
{
if (!ComPorts.Contains(port))
{
AddPort(port);
}
}
PortsChanged?.Invoke(this, null);
}
private void UpdateDelta(IEnumerable <SensorData> sensors)
{
List <SensorData> changed = new List <SensorData>();
sensorDataMapLock.EnterWriteLock();
try
{
foreach (var data in sensors)
{
if (sensorDataMap.TryGetValue(data.Port, out var originalData))
{
originalData.ApplyDelta(data);
changed.Add(data.Clone());
}
}
}
finally
{
sensorDataMapLock.ExitWriteLock();
}
PortsChanged?.Invoke(this, changed);
}
