public async Task RunReceiveLoopAsync()
{
while (!_backgroundReceiveCTS.IsCancellationRequested)
{
var lengthData = await _socket.ReceiveAsync(2, _backgroundReceiveCTS.Token);
if (_backgroundReceiveCTS.IsCancellationRequested || lengthData.Length != 2)
{
break;
}
var length = _numberEncoderService.DecodeNumber(lengthData);
var packetData = await _socket.ReceiveAsync(length, _backgroundReceiveCTS.Token);
if (_backgroundReceiveCTS.IsCancellationRequested || packetData.Length != length)
{
break;
}
var packet = _packetProcessActions.DecodeData(packetData);
LogReceivedPacket(packet);
_packetHandlingActions.EnqueuePacketForHandling(packet);
}
}
private void _checkRequiredInputs()
{
txtOutput.Text = "";
if (txtDMulti.TextLength == 0 || txtEMulti.TextLength == 0 || txtOffset.TextLength == 0)
{
return;
}
if (txtLength.TextLength == 0 && m_type == DataTypes.FixedString)
{
return;
}
string inputData = txtInputData.Text;
if (inputData.Length == 0)
{
return;
}
//input data is copied from wireshark. colon delimited.
string bytes = inputData.Replace(":", "");
string len = bytes.Substring(0, 4);//first 2 bytes are the length!
bytes = bytes.Substring(4);
byte[] data = new byte[bytes.Length / 2];
byte[] lenDat = new byte[2];
for (int i = 0; i < len.Length; i += 2)
{
lenDat[i / 2] = Convert.ToByte(len.Substring(i, 2), 16);
}
lblPacketLength.Text = "Packet Length: " + OldPacket.DecodeNumber(lenDat).ToString();
for (int i = 0; i < bytes.Length; i += 2)
{
data[i / 2] = Convert.ToByte(bytes.Substring(i, 2), 16);
}
var pkt = _packetProcessActions.DecodeData(data);
pkt.Seek(m_packetOffset, SeekOrigin.Begin);
lblFamily.Text = pkt.Family.ToString();
lblAction.Text = pkt.Action.ToString();
string decoded = "";
for (int i = 0; i < data.Length; i++)
{
decoded += $"{data[i].ToString("D3")} ";
}
txtDecoded.Text = decoded;
switch ((DataTypes)cmbOutputFmt.SelectedIndex)
{
case DataTypes.None:
txtOutput.Text = pkt.ReadEndString();
break;
case DataTypes.PacketFamily:
txtOutput.Text = ((PacketFamily)pkt.PeekByte()).ToString();
break;
case DataTypes.PacketAction:
txtOutput.Text = ((PacketAction)pkt.PeekByte()).ToString();
break;
case DataTypes.Byte:
txtOutput.Text = pkt.PeekByte().ToString();
break;
case DataTypes.Char:
txtOutput.Text = pkt.PeekChar().ToString();
break;
case DataTypes.Short:
txtOutput.Text = pkt.PeekShort().ToString();
break;
case DataTypes.Three:
txtOutput.Text = pkt.PeekThree().ToString();
break;
case DataTypes.Int:
txtOutput.Text = pkt.PeekInt().ToString();
break;
case DataTypes.BreakString:
txtOutput.Text = pkt.PeekBreakString();
break;
case DataTypes.EndString:
txtOutput.Text = pkt.PeekEndString();
break;
case DataTypes.FixedString:
txtOutput.Text = pkt.PeekString(m_dataLength);
break;
default:
throw new ArgumentOutOfRangeException();
}
int selLen;
if (m_dataLength > 0)
{
selLen = m_dataLength;
}
else
{
switch (m_type)
{
case DataTypes.EndString:
selLen = 3 * (pkt.Length - pkt.ReadPosition) - 1;
break;
case DataTypes.BreakString:
int oldPos = pkt.ReadPosition;
while (pkt.ReadByte() != 255)
{
;
}
selLen = pkt.ReadPosition - oldPos;
pkt.Seek(oldPos, SeekOrigin.Begin);
break;
default:
selLen = 0;
break;
}
}
txtDecoded.Select(4 * m_packetOffset, 4 * selLen - 1);
if (m_type == DataTypes.EndString || m_type == DataTypes.BreakString)
{
m_suppressEvent = true;
txtLength.Text = selLen.ToString();
m_suppressEvent = false;
}
}