Major upgrade
This commit is contained in:
Duc
@@ -30,436 +30,431 @@
|
||||
// DISTRIBUTION/DISSEMINATION CONTROL: F
|
||||
// POC: Alex Kravchenko (1118268)
|
||||
// **********************************************************************************************************
|
||||
using NLog;
|
||||
using Raytheon.Common;
|
||||
using System;
|
||||
using System.Net;
|
||||
using System.Net.Sockets;
|
||||
using System.Text;
|
||||
using System.Threading.Tasks;
|
||||
using System.Threading;
|
||||
using System.Reflection;
|
||||
using System.Text;
|
||||
using System.Threading;
|
||||
using System.Threading.Tasks;
|
||||
using NLog;
|
||||
using Raytheon.Common;
|
||||
|
||||
namespace Raytheon.Instruments
|
||||
{
|
||||
/// <summary>
|
||||
/// A sim communication device
|
||||
/// </summary>
|
||||
public class CommDeviceTcpAsync : ICommAsync
|
||||
{
|
||||
#region PrivateClassMembers
|
||||
|
||||
private uint _defaultReadTimeout;
|
||||
private uint _defaultSendTimeout;
|
||||
private uint _defaultReadBufferSize;
|
||||
private static readonly object _syncObj = new object();
|
||||
private TcpClient _tcpClient;
|
||||
private TcpListener _tcpListener;
|
||||
private NetworkStream _tcpIpStream;
|
||||
private int _port;
|
||||
private string _remoteAddress;
|
||||
private int _remotePort;
|
||||
private readonly string _name;
|
||||
private State _state;
|
||||
|
||||
/// <summary>
|
||||
/// NLog logger
|
||||
/// </summary>
|
||||
private readonly ILogger _logger;
|
||||
/// <summary>
|
||||
/// Raytheon configuration
|
||||
/// </summary>
|
||||
private readonly IConfigurationManager _configurationManager;
|
||||
private readonly IConfiguration _configuration;
|
||||
|
||||
#endregion
|
||||
|
||||
public bool ClearErrors() => false;
|
||||
public bool FrontPanelEnabled { get => false; set => throw new NotImplementedException(); }
|
||||
public bool DisplayEnabled { get => false; set => throw new NotImplementedException(); }
|
||||
public string DetailedStatus => $"This is a TCP/IP Device called {_name}";
|
||||
public InstrumentMetadata Info => throw new NotImplementedException();
|
||||
public State Status => _state;
|
||||
public string Name => _name;
|
||||
public SelfTestResult PerformSelfTest() => SelfTestResult;
|
||||
public SelfTestResult SelfTestResult => SelfTestResult.Unknown;
|
||||
public void Open() => Initialize();
|
||||
public void Close() => Shutdown();
|
||||
public void Reset()
|
||||
{
|
||||
Close();
|
||||
Open();
|
||||
}
|
||||
|
||||
#region Private Functions
|
||||
/// <summary>
|
||||
/// Dispose of the resources contained by this object
|
||||
/// </summary>
|
||||
public void Dispose()
|
||||
{
|
||||
try
|
||||
{
|
||||
lock (_syncObj)
|
||||
{
|
||||
Dispose(true);
|
||||
GC.SuppressFinalize(this);
|
||||
}
|
||||
}
|
||||
catch (Exception err)
|
||||
{
|
||||
_logger.Error(err.Message + "\r\n" + err.StackTrace);
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Dispose of the resources contained by this object
|
||||
/// </summary>
|
||||
/// <param name="disposing"></param>
|
||||
protected virtual void Dispose(bool disposing)
|
||||
{
|
||||
if (disposing)
|
||||
{
|
||||
// close the socket
|
||||
try
|
||||
{
|
||||
Shutdown();
|
||||
}
|
||||
catch (Exception err)
|
||||
{
|
||||
_logger.Error(err.Message + "\r\n" + err.StackTrace);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region Public Functions
|
||||
|
||||
/// <summary>
|
||||
/// CommDevice factory constructor
|
||||
/// </summary>
|
||||
/// <param name="name"></param>
|
||||
/// <param name="configurationManager"></param>
|
||||
public CommDeviceTcpAsync(string name, IConfigurationManager configurationManager, ILogger logger)
|
||||
{
|
||||
_name = name;
|
||||
|
||||
// _tcpClient is created in Initialize()
|
||||
_tcpClient = null;
|
||||
_tcpIpStream = null;
|
||||
|
||||
_state = State.Uninitialized;
|
||||
|
||||
_logger = logger;
|
||||
|
||||
_configurationManager = configurationManager;
|
||||
_configuration = _configurationManager.GetConfiguration(Name);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// initialize instrument
|
||||
/// </summary>
|
||||
public void Initialize()
|
||||
{
|
||||
if (_state != State.Uninitialized)
|
||||
{
|
||||
_logger.Warn("Reinitialization of existing TCP Async Connection. Attempting to call Shutdown.");
|
||||
Shutdown();
|
||||
}
|
||||
|
||||
_defaultReadTimeout = _configuration.GetConfigurationValue<uint>("TcpClient", "ReadTimeout", 25);
|
||||
_defaultSendTimeout = _configuration.GetConfigurationValue<uint>("TcpClient", "SendTimeout", 5000);
|
||||
_defaultReadBufferSize = _configuration.GetConfigurationValue<uint>("TcpClient", "BufferSize", 1024);
|
||||
|
||||
_remoteAddress = _configuration.GetConfigurationValue("TcpClient", "RemoteAddress", "127.0.0.1");
|
||||
_port = _configuration.GetConfigurationValue("TcpClient", "Port", 0);
|
||||
|
||||
if (string.IsNullOrEmpty(_remoteAddress))
|
||||
{
|
||||
_tcpListener = new TcpListener(IPAddress.Any, _port);
|
||||
_tcpListener.Start();
|
||||
|
||||
_logger.Debug($"{MethodBase.GetCurrentMethod().Name} Started Listening on Port: {_port}");
|
||||
|
||||
Task.Run(async () => await _tcpListener.AcceptTcpClientAsync()).ContinueWith(t =>
|
||||
{
|
||||
_tcpClient = t.Result;
|
||||
|
||||
_remoteAddress = ((IPEndPoint)_tcpClient.Client.RemoteEndPoint).Address.ToString();
|
||||
_remotePort = ((IPEndPoint)_tcpClient.Client.RemoteEndPoint).Port;
|
||||
|
||||
_logger.Debug($"{MethodBase.GetCurrentMethod().Name} Connection Established from Remote Address: {_remoteAddress}:{_remotePort}");
|
||||
|
||||
// set timeouts
|
||||
_tcpClient.Client.SendTimeout = (int)_defaultSendTimeout;
|
||||
_tcpClient.Client.ReceiveTimeout = (int)_defaultReadTimeout;
|
||||
|
||||
// get the stream
|
||||
_tcpIpStream = _tcpClient.GetStream();
|
||||
|
||||
_state = State.Ready;
|
||||
});
|
||||
}
|
||||
else
|
||||
{
|
||||
_remotePort = _port;
|
||||
_tcpClient = new TcpClient(_remoteAddress, _remotePort);
|
||||
|
||||
_logger.Debug($"{MethodBase.GetCurrentMethod().Name} Connected to Remote Address {_remoteAddress}:{_remotePort}");
|
||||
|
||||
// set timeouts
|
||||
_tcpClient.Client.SendTimeout = (int)_defaultSendTimeout;
|
||||
_tcpClient.Client.ReceiveTimeout = (int)_defaultReadTimeout;
|
||||
|
||||
// get the stream
|
||||
_tcpIpStream = _tcpClient.GetStream();
|
||||
|
||||
_state = State.Ready;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// shuts down the device
|
||||
/// </summary>
|
||||
public void Shutdown()
|
||||
{
|
||||
_logger.Debug("Shutting down");
|
||||
_tcpClient?.Dispose();
|
||||
_tcpClient = null;
|
||||
|
||||
_tcpListener?.Stop();
|
||||
_tcpListener = null;
|
||||
|
||||
_tcpIpStream?.Dispose();
|
||||
_tcpIpStream = null;
|
||||
|
||||
_state = State.Uninitialized;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Read data from the device asynchronously.
|
||||
/// </summary>
|
||||
/// <param name="dataRead">The buffer to put the data in</param>
|
||||
/// <returns>The number of bytes read</returns>
|
||||
public async Task<uint> ReadAsync(byte[] dataRead, CancellationToken token = default)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
return 0;
|
||||
|
||||
if (_tcpIpStream.DataAvailable == true)
|
||||
{
|
||||
_state = State.Busy;
|
||||
var bytesRead = await _tcpIpStream.ReadAsync(dataRead, 0, dataRead.Length, token);
|
||||
|
||||
_logger.Trace($"Reading Data, bytes received: {bytesRead}");
|
||||
|
||||
_state = State.Ready;
|
||||
return (uint)bytesRead;
|
||||
}
|
||||
else
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Read string from the device asynchronously.
|
||||
/// </summary>
|
||||
/// <param name="dataRead">The buffer to put the data in</param>
|
||||
/// <returns>The number of bytes read</returns>
|
||||
public async Task<string> ReadAsync(CancellationToken token = default)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
return null;
|
||||
|
||||
if (_tcpIpStream.DataAvailable == true)
|
||||
{
|
||||
_state = State.Busy;
|
||||
var buffer = new byte[_defaultReadBufferSize];
|
||||
var bytesRead = await _tcpIpStream.ReadAsync(buffer, 0, buffer.Length, token);
|
||||
_state = State.Ready;
|
||||
|
||||
var message = Encoding.UTF8.GetString(buffer, 0, bytesRead);
|
||||
|
||||
_logger.Trace($"Reading Data, message received: {message}");
|
||||
|
||||
return message;
|
||||
}
|
||||
else
|
||||
{
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Sets the read timeout
|
||||
/// </summary>
|
||||
/// <param name="timeoutMs"></param>
|
||||
public void SetReadTimeout(uint timeoutMs)
|
||||
{
|
||||
_logger.Trace($"Setting Reader Timeout: {timeoutMs} Ms");
|
||||
|
||||
_tcpClient.Client.ReceiveTimeout = (int)timeoutMs;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Write data to the device asynchronously
|
||||
/// </summary>
|
||||
/// <param name="dataToSend"></param>
|
||||
/// <param name="numBytesToWrite"></param>
|
||||
/// <returns></returns>
|
||||
public async Task<uint> WriteAsync(byte[] dataToSend, uint numBytesToWrite, CancellationToken token = default)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
return 0;
|
||||
|
||||
_logger.Trace($"Writing message to ({_remoteAddress}:{_remotePort}), bytes: {dataToSend?.Length}");
|
||||
|
||||
_state = State.Busy;
|
||||
await _tcpIpStream.WriteAsync(dataToSend, 0, (int)numBytesToWrite, token);
|
||||
_state = State.Ready;
|
||||
return numBytesToWrite;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Write string data to the device asynchronously
|
||||
/// </summary>
|
||||
/// <param name="message"></param>
|
||||
/// <returns></returns>
|
||||
public async Task WriteAsync(string message, CancellationToken token = default)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
return;
|
||||
|
||||
_logger.Trace($"Writing message to ({_remoteAddress}:{_remotePort}), message: {message}");
|
||||
|
||||
_state = State.Busy;
|
||||
var buffer = Encoding.UTF8.GetBytes(message);
|
||||
await _tcpIpStream.WriteAsync(buffer, 0, buffer.Length, token);
|
||||
_state = State.Ready;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Send Command and Get Response asynchronously
|
||||
/// </summary>
|
||||
/// <param name="message"></param>
|
||||
/// <param name="timeoutInMs"></param>
|
||||
/// <returns></returns>
|
||||
public async Task<string> SendCommandGetResponseAsync(string message, CancellationToken cancellationToken = default, int timeoutInMs = 5000)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
return null;
|
||||
|
||||
_logger.Trace($"Sending command waiting for response from ({_remoteAddress}:{_remotePort}), message: {message}");
|
||||
|
||||
using (var cts = new CancellationTokenSource(TimeSpan.FromMilliseconds(timeoutInMs)))
|
||||
{
|
||||
if (cancellationToken == default)
|
||||
{
|
||||
cancellationToken = cts.Token;
|
||||
}
|
||||
await WriteAsync(message, cancellationToken);
|
||||
string readResponse = await ReadAsync(cancellationToken);
|
||||
_logger.Trace($"Received response: {readResponse}");
|
||||
return readResponse;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Send Command and Get Response asynchronously
|
||||
/// </summary>
|
||||
/// <param name="message"></param>
|
||||
/// <param name="timeoutInMs"></param>
|
||||
/// <returns></returns>
|
||||
public async Task<byte[]> SendCommandGetResponseAsync(byte[] data, CancellationToken cancellationToken = default, int timeoutInMs = 5000)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
return null;
|
||||
|
||||
_logger.Trace($"Sending command waiting for response from ({_remoteAddress}:{_remotePort}), message: {data}");
|
||||
|
||||
using (var cts = new CancellationTokenSource(TimeSpan.FromMilliseconds(timeoutInMs)))
|
||||
{
|
||||
if (cancellationToken == default)
|
||||
{
|
||||
cancellationToken = cts.Token;
|
||||
}
|
||||
await WriteAsync(data, (uint)data.Length, cancellationToken);
|
||||
byte[] buffer = new byte[_defaultReadBufferSize];
|
||||
uint bytesRead = await ReadAsync(buffer, cancellationToken);
|
||||
_logger.Trace($"Received response of size: {bytesRead}");
|
||||
|
||||
return buffer;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// keeps reading until canceled via token,
|
||||
/// received messages sent to dataReceived function
|
||||
/// </summary>
|
||||
/// <param name="cancellationToken"></param>
|
||||
/// <param name="dataReceived"></param>
|
||||
/// <returns></returns>
|
||||
public async Task KeepReadingAsync(CancellationToken cancellationToken, Action<string> dataReceived)
|
||||
{
|
||||
_logger.Debug($"Starting continuous reading from {_remoteAddress}:{_remotePort} ...");
|
||||
|
||||
byte[] buffer = new byte[_defaultReadBufferSize];
|
||||
while (!cancellationToken.IsCancellationRequested)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
uint bytesRead = await ReadAsync(buffer, cancellationToken);
|
||||
if (bytesRead > 0)
|
||||
{
|
||||
string data = Encoding.UTF8.GetString(buffer, 0, (int)bytesRead);
|
||||
|
||||
_logger.Trace($"Message received from {_remoteAddress}:{_remotePort}: {data}");
|
||||
|
||||
dataReceived(data);
|
||||
Array.Clear(buffer, 0, (int)bytesRead);
|
||||
}
|
||||
}
|
||||
|
||||
_logger.Debug($"Finished continuous reading from {_remoteAddress}:{_remotePort} ...");
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// keeps reading until canceled via token,
|
||||
/// received messages sent to dataReceived function
|
||||
/// </summary>
|
||||
/// <param name="cancellationToken"></param>
|
||||
/// <param name="dataReceived"></param>
|
||||
/// <returns></returns>
|
||||
public async Task KeepReadingAsync(CancellationToken cancellationToken, Action<byte[]> dataReceived)
|
||||
{
|
||||
_logger.Debug($"Starting continuous reading from {_remoteAddress}:{_remotePort} ...");
|
||||
|
||||
byte[] buffer = new byte[_defaultReadBufferSize];
|
||||
while (!cancellationToken.IsCancellationRequested)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
uint bytesRead = await ReadAsync(buffer, cancellationToken);
|
||||
if (bytesRead > 0)
|
||||
{
|
||||
_logger.Trace($"Message received from {_remoteAddress}:{_remotePort}: size {bytesRead}");
|
||||
byte[] bufferCopy = new byte[bytesRead];
|
||||
Array.Copy(buffer, bufferCopy, bytesRead);
|
||||
dataReceived(bufferCopy);
|
||||
Array.Clear(buffer, 0, (int)bytesRead);
|
||||
}
|
||||
}
|
||||
|
||||
_logger.Debug($"Finished continuous reading from {_remoteAddress}:{_remotePort} ...");
|
||||
}
|
||||
|
||||
#endregion
|
||||
}
|
||||
/// <summary>
|
||||
/// A sim communication device
|
||||
/// </summary>
|
||||
public class CommDeviceTcpAsync : ICommAsync
|
||||
{
|
||||
#region PrivateClassMembers
|
||||
|
||||
private uint _defaultReadTimeout;
|
||||
private uint _defaultSendTimeout;
|
||||
private uint _defaultReadBufferSize;
|
||||
private static readonly object _syncObj = new object();
|
||||
private TcpClient _tcpClient;
|
||||
private TcpListener _tcpListener;
|
||||
private NetworkStream _tcpIpStream;
|
||||
private int _port;
|
||||
private string _remoteAddress;
|
||||
private int _remotePort;
|
||||
private readonly string _name;
|
||||
private State _state;
|
||||
|
||||
private readonly ILogger _logger;
|
||||
|
||||
private readonly IConfigurationManager _configurationManager;
|
||||
private readonly IConfiguration _configuration;
|
||||
|
||||
#endregion
|
||||
|
||||
public bool ClearErrors() => false;
|
||||
public bool FrontPanelEnabled { get => false; set => throw new NotImplementedException(); }
|
||||
public bool DisplayEnabled { get => false; set => throw new NotImplementedException(); }
|
||||
public string DetailedStatus => $"This is a TCP/IP Device called {_name}";
|
||||
public InstrumentMetadata Info => throw new NotImplementedException();
|
||||
public State Status => _state;
|
||||
public string Name => _name;
|
||||
public SelfTestResult PerformSelfTest() => SelfTestResult;
|
||||
public SelfTestResult SelfTestResult => SelfTestResult.Unknown;
|
||||
public void Open() => Initialize();
|
||||
public void Close() => Shutdown();
|
||||
public void Reset()
|
||||
{
|
||||
Close();
|
||||
Open();
|
||||
}
|
||||
|
||||
#region Private Functions
|
||||
/// <summary>
|
||||
/// Dispose of the resources contained by this object
|
||||
/// </summary>
|
||||
public void Dispose()
|
||||
{
|
||||
try
|
||||
{
|
||||
lock (_syncObj)
|
||||
{
|
||||
Dispose(true);
|
||||
GC.SuppressFinalize(this);
|
||||
}
|
||||
}
|
||||
catch (Exception err)
|
||||
{
|
||||
_logger.Error(err.Message + "\r\n" + err.StackTrace);
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Dispose of the resources contained by this object
|
||||
/// </summary>
|
||||
/// <param name="disposing"></param>
|
||||
protected virtual void Dispose(bool disposing)
|
||||
{
|
||||
if (disposing)
|
||||
{
|
||||
// close the socket
|
||||
try
|
||||
{
|
||||
Shutdown();
|
||||
}
|
||||
catch (Exception err)
|
||||
{
|
||||
_logger.Error(err.Message + "\r\n" + err.StackTrace);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region Public Functions
|
||||
|
||||
/// <summary>
|
||||
/// CommDevice factory constructor
|
||||
/// </summary>
|
||||
/// <param name="deviceName"></param>
|
||||
/// <param name="configurationManager"></param>
|
||||
public CommDeviceTcpAsync(string deviceName, IConfigurationManager configurationManager)
|
||||
{
|
||||
_name = deviceName;
|
||||
|
||||
// _tcpClient is created in Initialize()
|
||||
_tcpClient = null;
|
||||
_tcpIpStream = null;
|
||||
|
||||
_state = State.Uninitialized;
|
||||
|
||||
_logger = LogManager.GetLogger($"{this.GetType().Name} - {deviceName}");
|
||||
|
||||
_configurationManager = configurationManager;
|
||||
_configuration = _configurationManager.GetConfiguration(Name);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// initialize instrument
|
||||
/// </summary>
|
||||
public void Initialize()
|
||||
{
|
||||
if (_state != State.Uninitialized)
|
||||
{
|
||||
_logger.Warn("Reinitialization of existing TCP Async Connection. Attempting to call Shutdown.");
|
||||
Shutdown();
|
||||
}
|
||||
|
||||
_defaultReadTimeout = _configuration.GetConfigurationValue<uint>("TcpClient", "ReadTimeout", 25);
|
||||
_defaultSendTimeout = _configuration.GetConfigurationValue<uint>("TcpClient", "SendTimeout", 5000);
|
||||
_defaultReadBufferSize = _configuration.GetConfigurationValue<uint>("TcpClient", "BufferSize", 1024);
|
||||
|
||||
_remoteAddress = _configuration.GetConfigurationValue("TcpClient", "RemoteAddress", "127.0.0.1");
|
||||
_port = _configuration.GetConfigurationValue("TcpClient", "Port", 0);
|
||||
|
||||
if (string.IsNullOrEmpty(_remoteAddress))
|
||||
{
|
||||
_tcpListener = new TcpListener(IPAddress.Any, _port);
|
||||
_tcpListener.Start();
|
||||
|
||||
_logger.Debug($"{MethodBase.GetCurrentMethod().Name} Started Listening on Port: {_port}");
|
||||
|
||||
Task.Run(async () => await _tcpListener.AcceptTcpClientAsync()).ContinueWith(t =>
|
||||
{
|
||||
_tcpClient = t.Result;
|
||||
|
||||
_remoteAddress = ((IPEndPoint)_tcpClient.Client.RemoteEndPoint).Address.ToString();
|
||||
_remotePort = ((IPEndPoint)_tcpClient.Client.RemoteEndPoint).Port;
|
||||
|
||||
_logger.Debug($"{MethodBase.GetCurrentMethod().Name} Connection Established from Remote Address: {_remoteAddress}:{_remotePort}");
|
||||
|
||||
// set timeouts
|
||||
_tcpClient.Client.SendTimeout = (int)_defaultSendTimeout;
|
||||
_tcpClient.Client.ReceiveTimeout = (int)_defaultReadTimeout;
|
||||
|
||||
// get the stream
|
||||
_tcpIpStream = _tcpClient.GetStream();
|
||||
|
||||
_state = State.Ready;
|
||||
});
|
||||
}
|
||||
else
|
||||
{
|
||||
_remotePort = _port;
|
||||
_tcpClient = new TcpClient(_remoteAddress, _remotePort);
|
||||
|
||||
_logger.Debug($"{MethodBase.GetCurrentMethod().Name} Connected to Remote Address {_remoteAddress}:{_remotePort}");
|
||||
|
||||
// set timeouts
|
||||
_tcpClient.Client.SendTimeout = (int)_defaultSendTimeout;
|
||||
_tcpClient.Client.ReceiveTimeout = (int)_defaultReadTimeout;
|
||||
|
||||
// get the stream
|
||||
_tcpIpStream = _tcpClient.GetStream();
|
||||
|
||||
_state = State.Ready;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// shuts down the device
|
||||
/// </summary>
|
||||
public void Shutdown()
|
||||
{
|
||||
_logger.Debug("Shutting down");
|
||||
_tcpClient?.Dispose();
|
||||
_tcpClient = null;
|
||||
|
||||
_tcpListener?.Stop();
|
||||
_tcpListener = null;
|
||||
|
||||
_tcpIpStream?.Dispose();
|
||||
_tcpIpStream = null;
|
||||
|
||||
_state = State.Uninitialized;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Read data from the device asynchronously.
|
||||
/// </summary>
|
||||
/// <param name="dataRead">The buffer to put the data in</param>
|
||||
/// <returns>The number of bytes read</returns>
|
||||
public async Task<uint> ReadAsync(byte[] dataRead, CancellationToken token = default)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
return 0;
|
||||
|
||||
if (_tcpIpStream.DataAvailable == true)
|
||||
{
|
||||
_state = State.Busy;
|
||||
var bytesRead = await _tcpIpStream.ReadAsync(dataRead, 0, dataRead.Length, token);
|
||||
|
||||
_logger.Trace($"Reading Data, bytes received: {bytesRead}");
|
||||
|
||||
_state = State.Ready;
|
||||
return (uint)bytesRead;
|
||||
}
|
||||
else
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Read string from the device asynchronously.
|
||||
/// </summary>
|
||||
/// <param name="dataRead">The buffer to put the data in</param>
|
||||
/// <returns>The number of bytes read</returns>
|
||||
public async Task<string> ReadAsync(CancellationToken token = default)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
return null;
|
||||
|
||||
if (_tcpIpStream.DataAvailable == true)
|
||||
{
|
||||
_state = State.Busy;
|
||||
var buffer = new byte[_defaultReadBufferSize];
|
||||
var bytesRead = await _tcpIpStream.ReadAsync(buffer, 0, buffer.Length, token);
|
||||
_state = State.Ready;
|
||||
|
||||
var message = Encoding.UTF8.GetString(buffer, 0, bytesRead);
|
||||
|
||||
_logger.Trace($"Reading Data, message received: {message}");
|
||||
|
||||
return message;
|
||||
}
|
||||
else
|
||||
{
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Sets the read timeout
|
||||
/// </summary>
|
||||
/// <param name="timeoutMs"></param>
|
||||
public void SetReadTimeout(uint timeoutMs)
|
||||
{
|
||||
_logger.Trace($"Setting Reader Timeout: {timeoutMs} Ms");
|
||||
|
||||
_tcpClient.Client.ReceiveTimeout = (int)timeoutMs;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Write data to the device asynchronously
|
||||
/// </summary>
|
||||
/// <param name="dataToSend"></param>
|
||||
/// <param name="numBytesToWrite"></param>
|
||||
/// <returns></returns>
|
||||
public async Task<uint> WriteAsync(byte[] dataToSend, uint numBytesToWrite, CancellationToken token = default)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
return 0;
|
||||
|
||||
_logger.Trace($"Writing message to ({_remoteAddress}:{_remotePort}), bytes: {dataToSend?.Length}");
|
||||
|
||||
_state = State.Busy;
|
||||
await _tcpIpStream.WriteAsync(dataToSend, 0, (int)numBytesToWrite, token);
|
||||
_state = State.Ready;
|
||||
return numBytesToWrite;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Write string data to the device asynchronously
|
||||
/// </summary>
|
||||
/// <param name="message"></param>
|
||||
/// <returns></returns>
|
||||
public async Task WriteAsync(string message, CancellationToken token = default)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
return;
|
||||
|
||||
_logger.Trace($"Writing message to ({_remoteAddress}:{_remotePort}), message: {message}");
|
||||
|
||||
_state = State.Busy;
|
||||
var buffer = Encoding.UTF8.GetBytes(message);
|
||||
await _tcpIpStream.WriteAsync(buffer, 0, buffer.Length, token);
|
||||
_state = State.Ready;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Send Command and Get Response asynchronously
|
||||
/// </summary>
|
||||
/// <param name="message"></param>
|
||||
/// <param name="timeoutInMs"></param>
|
||||
/// <returns></returns>
|
||||
public async Task<string> SendCommandGetResponseAsync(string message, CancellationToken cancellationToken = default, int timeoutInMs = 5000)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
return null;
|
||||
|
||||
_logger.Trace($"Sending command waiting for response from ({_remoteAddress}:{_remotePort}), message: {message}");
|
||||
|
||||
using (var cts = new CancellationTokenSource(TimeSpan.FromMilliseconds(timeoutInMs)))
|
||||
{
|
||||
if (cancellationToken == default)
|
||||
{
|
||||
cancellationToken = cts.Token;
|
||||
}
|
||||
await WriteAsync(message, cancellationToken);
|
||||
string readResponse = await ReadAsync(cancellationToken);
|
||||
_logger.Trace($"Received response: {readResponse}");
|
||||
return readResponse;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Send Command and Get Response asynchronously
|
||||
/// </summary>
|
||||
/// <param name="message"></param>
|
||||
/// <param name="timeoutInMs"></param>
|
||||
/// <returns></returns>
|
||||
public async Task<byte[]> SendCommandGetResponseAsync(byte[] data, CancellationToken cancellationToken = default, int timeoutInMs = 5000)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
return null;
|
||||
|
||||
_logger.Trace($"Sending command waiting for response from ({_remoteAddress}:{_remotePort}), message: {data}");
|
||||
|
||||
using (var cts = new CancellationTokenSource(TimeSpan.FromMilliseconds(timeoutInMs)))
|
||||
{
|
||||
if (cancellationToken == default)
|
||||
{
|
||||
cancellationToken = cts.Token;
|
||||
}
|
||||
await WriteAsync(data, (uint)data.Length, cancellationToken);
|
||||
byte[] buffer = new byte[_defaultReadBufferSize];
|
||||
uint bytesRead = await ReadAsync(buffer, cancellationToken);
|
||||
_logger.Trace($"Received response of size: {bytesRead}");
|
||||
|
||||
return buffer;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// keeps reading until canceled via token,
|
||||
/// received messages sent to dataReceived function
|
||||
/// </summary>
|
||||
/// <param name="cancellationToken"></param>
|
||||
/// <param name="dataReceived"></param>
|
||||
/// <returns></returns>
|
||||
public async Task KeepReadingAsync(CancellationToken cancellationToken, Action<string> dataReceived)
|
||||
{
|
||||
_logger.Debug($"Starting continuous reading from {_remoteAddress}:{_remotePort} ...");
|
||||
|
||||
byte[] buffer = new byte[_defaultReadBufferSize];
|
||||
while (!cancellationToken.IsCancellationRequested)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
uint bytesRead = await ReadAsync(buffer, cancellationToken);
|
||||
if (bytesRead > 0)
|
||||
{
|
||||
string data = Encoding.UTF8.GetString(buffer, 0, (int)bytesRead);
|
||||
|
||||
_logger.Trace($"Message received from {_remoteAddress}:{_remotePort}: {data}");
|
||||
|
||||
dataReceived(data);
|
||||
Array.Clear(buffer, 0, (int)bytesRead);
|
||||
}
|
||||
}
|
||||
|
||||
_logger.Debug($"Finished continuous reading from {_remoteAddress}:{_remotePort} ...");
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// keeps reading until canceled via token,
|
||||
/// received messages sent to dataReceived function
|
||||
/// </summary>
|
||||
/// <param name="cancellationToken"></param>
|
||||
/// <param name="dataReceived"></param>
|
||||
/// <returns></returns>
|
||||
public async Task KeepReadingAsync(CancellationToken cancellationToken, Action<byte[]> dataReceived)
|
||||
{
|
||||
_logger.Debug($"Starting continuous reading from {_remoteAddress}:{_remotePort} ...");
|
||||
|
||||
byte[] buffer = new byte[_defaultReadBufferSize];
|
||||
while (!cancellationToken.IsCancellationRequested)
|
||||
{
|
||||
if (_tcpIpStream == null)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
uint bytesRead = await ReadAsync(buffer, cancellationToken);
|
||||
if (bytesRead > 0)
|
||||
{
|
||||
_logger.Trace($"Message received from {_remoteAddress}:{_remotePort}: size {bytesRead}");
|
||||
byte[] bufferCopy = new byte[bytesRead];
|
||||
Array.Copy(buffer, bufferCopy, bytesRead);
|
||||
dataReceived(bufferCopy);
|
||||
Array.Clear(buffer, 0, (int)bytesRead);
|
||||
}
|
||||
}
|
||||
|
||||
_logger.Debug($"Finished continuous reading from {_remoteAddress}:{_remotePort} ...");
|
||||
}
|
||||
|
||||
#endregion
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user