public void Write(ref byte[] buffer, int offset, int count)
{
var masterStopWatch = Stopwatch.StartNew();
var startTime = DateTime.Now;
var numberOfActualBitsPerByte = (1 + (SerialPort.Parity == Parity.None ? 0 : 1) + SerialPort.DataBits + (SerialPort.StopBits == StopBits.None ? 0 : SerialPort.StopBits == StopBits.One ? 1 : SerialPort.StopBits == StopBits.OnePointFive ? 1.5 : 2));
var transmitTimeMilliseconds = ((count * numberOfActualBitsPerByte) / SerialPort.BaudRate) * 1000;
var bufferLength = buffer.Length;
var writeBuffer = new byte[bufferLength];
Buffer.BlockCopy(buffer, 0, writeBuffer, 0, bufferLength);
SerialPort.BaseStream.Write(writeBuffer, offset, count);
SerialPort.BaseStream.Flush();
while (SerialPort.BytesToWrite > 0)
{
Thread.Sleep(0);
}
TimedThreadBlocker.Wait((int)transmitTimeMilliseconds);
masterStopWatch.Stop();
if (TracingEnabled)
{
Trace.WriteLine(string.Format("Channel,{0},{1},{2},ChannelWrite,{3},{4},{5},SerialPortChannel", Name, startTime.ToString("O"), (1000.0 * (((double)masterStopWatch.ElapsedTicks) * (1.0 / ((double)Stopwatch.Frequency)))), 0, count, HexConverter.ToHexString(buffer)));
}
}
private void SerialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
var startTime = DateTime.Now;
var lockObject = SourceChannel.LockObject;
lock (lockObject)
{
var masterStopWatch = new Stopwatch();
var requestBytes = new byte[] { };
TimedThreadBlocker.Wait(requestDelay);
requestBytes = new byte[SerialPort.BytesToRead];
if (requestBytes.Length > 0)
{
Read(ref requestBytes, 0, requestBytes.Length, 0);
SourceChannel.Write(ref requestBytes, 0, requestBytes.Length);
TimedThreadBlocker.Wait(responseDelay);
masterStopWatch.Start();
var sequence = 0;
while (SourceChannel.NumberOfBytesAvailable > 0 && responseTimeout > masterStopWatch.ElapsedMilliseconds)
{
var responseBytes = new byte[SourceChannel.NumberOfBytesAvailable];
SourceChannel.Read(ref responseBytes, 0, responseBytes.Length, sequence++);
Write(ref responseBytes, 0, responseBytes.Length);
}
masterStopWatch.Stop();
}
}
}
public int Read(ref byte[] buffer, int offset, int count, int sequence)
{
var masterStopWatch = Stopwatch.StartNew();
var startTime = DateTime.Now;
var bytesRead = new List <byte>();
var numberOfActualBitsPerByte = (1 + (SerialPort.Parity == Parity.None ? 0 : 1) + SerialPort.DataBits + (SerialPort.StopBits == StopBits.None ? 0 : SerialPort.StopBits == StopBits.One ? 1 : SerialPort.StopBits == StopBits.OnePointFive ? 1.5 : 2));
var receiveTimeMilliseconds = ((count * numberOfActualBitsPerByte) / SerialPort.BaudRate) * 1000;
TimedThreadBlocker.Wait((int)receiveTimeMilliseconds);
var timeoutStopWatch = Stopwatch.StartNew();
while (ReadTimeout > timeoutStopWatch.ElapsedMilliseconds)
{
var byteValue = -1;
try
{
byteValue = SerialPort.ReadByte();
if (byteValue >= 0)
{
bytesRead.Add((byte)byteValue);
}
if (count == bytesRead.Count)
{
goto Finish;
}
}
catch (TimeoutException toex)
{
masterStopWatch.Stop();
if (bytesRead.Count > 0)
{
Buffer.BlockCopy(bytesRead.ToArray(), 0, buffer, offset, bytesRead.Count);
}
if (TracingEnabled)
{
Trace.WriteLine(string.Format("Channel,{0},{1},{2},ChannelRead,{3},{4},{5},SerialPortChannel", Name, startTime.ToString("O"), (1000.0 * (((double)masterStopWatch.ElapsedTicks) * (1.0 / ((double)Stopwatch.Frequency)))), sequence, bytesRead.Count, HexConverter.ToHexString(bytesRead.ToArray())));
}
throw toex;
}
Thread.Sleep(0);
}
Finish:
timeoutStopWatch.Stop();
masterStopWatch.Stop();
if (bytesRead.Count > 0)
{
Buffer.BlockCopy(bytesRead.ToArray(), 0, buffer, offset, bytesRead.Count);
}
if (TracingEnabled)
{
Trace.WriteLine(string.Format("Channel,{0},{1},{2},ChannelRead,{3},{4},{5},SerialPortChannel", Name, startTime.ToString("O"), (1000.0 * (((double)masterStopWatch.ElapsedTicks) * (1.0 / ((double)Stopwatch.Frequency)))), sequence, bytesRead.Count, HexConverter.ToHexString(bytesRead.ToArray())));
}
if (count != bytesRead.Count)
{
throw new TimeoutException("Read Timeout");
}
else
{
return(count);
}
}
private void TcpClientBeginReadCallback(IAsyncResult asyncResult)
{
var tcpClient = asyncResult.AsyncState as TcpClient;
try
{
if (asyncResult.IsCompleted)
{
if (tcpClient != null)
{
try
{
var startTime = DateTime.Now;
var sourceChannelLockObject = SourceChannel.LockObject;
lock (sourceChannelLockObject)
{
lock (lockObject)
{
var readBuffer = new byte[1500];
var masterStopWatch = new Stopwatch();
var requestBytes = new byte[] { };
var networkStream = tcpClient.GetStream();
this.tcpClient = tcpClient;
TimedThreadBlocker.Wait(requestDelay);
requestBytes = new byte[tcpClient.Available];
if (requestBytes.Length > 0)
{
Read(ref requestBytes, 0, requestBytes.Length, 0);
SourceChannel.Write(ref requestBytes, 0, requestBytes.Length);
TimedThreadBlocker.Wait(responseDelay);
masterStopWatch.Start();
var sequence = 0;
while (SourceChannel.NumberOfBytesAvailable > 0 && responseTimeout > masterStopWatch.ElapsedMilliseconds)
{
var responseBytes = new byte[SourceChannel.NumberOfBytesAvailable];
SourceChannel.Read(ref responseBytes, 0, responseBytes.Length, sequence++);
Write(ref responseBytes, 0, responseBytes.Length);
}
masterStopWatch.Stop();
}
networkStream.BeginRead(readBuffer, 0, 0, new AsyncCallback(TcpClientBeginReadCallback), tcpClient);
return;
}
}
}
catch (Exception ex)
{
Trace.TraceError($"Error reading newtwork stream: {ex.Message}");
}
}
}
try
{
tcpClient.Dispose();
}
catch (Exception ex)
{
Trace.TraceError($"Error disposing TCP Client: {ex.Message}");
}
try
{
tcpClients.Remove(tcpClient);
}
catch (Exception ex)
{
Trace.TraceError($"Error removing TCP Client from list: {ex.Message}");
}
Interlocked.Decrement(ref numberOfTcpClients);
}
catch (Exception ex)
{
Trace.TraceError($"Error disposing TCP Client: {ex.Message}");
}
}
