private void processReceivedPacketsBackgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker worker = sender as BackgroundWorker;
while (worker.CancellationPending == false)
{
if (lPacketsToDownload.Count > 0)
{
// Create a string initialized with a header
string strPacketToSend = CustomDefs.strMuxHeader;
// Add the COM port number to the string to send
strPacketToSend += PortTools.GetPortNumber(lPacketsToDownload[0].strPortSource).ToString();
// Add a field separator
strPacketToSend += CustomDefs.strMuxFieldSeparator;
// Add the time
strPacketToSend += lPacketsToDownload[0].strTime;
// Convert the packet data in ASCII chars
foreach (byte dataByte in lPacketsToDownload[0].aData)
{
strPacketToSend += dataByte.ToString("X2") + CustomDefs.strDemuxByteSeparator;
}
// Add an end of line char
strPacketToSend += CustomDefs.strMuxEndOfLine;
// Send the packet
masterPort.serialPort.Write(strPacketToSend);
}
else
{
// Pause thread for 100ms to breath
System.Threading.Thread.Sleep(100);
}
}
}
private void SortPortsInBoxes()
{
// Clear the ComboBox
comboBoxSlavePortEdit.Items.Clear();
// Clear the ListBox
listBoxSlavePorts.Items.Clear();
// Create a list of index sorted
List <int> lSortedIndexesList = new List <int>();
foreach (SlavePort sp in slavePortsList)
{
if (sp.serialPort.PortName.Length > 3)
{
lSortedIndexesList.Add(PortTools.GetPortNumber(sp.serialPort.PortName));
}
}
lSortedIndexesList.Sort();
// Create the same list in string type, with "COM" added at the beginning
List <string> slavePortsNameList = new List <string>();
for (int iPortIndex = 0; iPortIndex < lSortedIndexesList.Count; iPortIndex++)
{
string strPortToAdd = "COM" + lSortedIndexesList[iPortIndex].ToString();
slavePortsNameList.Add(strPortToAdd);
listBoxSlavePorts.Items.Add(strPortToAdd);
comboBoxSlavePortEdit.Items.Add(strPortToAdd);
}
}
private int GetPortIndexByNumber(int iPortNum)
{
int iPortIndex = 0;
while (iPortIndex < slavePortsList.Count)
{
if (PortTools.GetPortNumber(slavePortsList[iPortIndex].serialPort.PortName) == iPortNum)
{
return(iPortIndex);
}
iPortIndex++;
}
return(-1);
}
private void dataReceptionBackgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker worker = sender as BackgroundWorker;
while (worker.CancellationPending == false)
{
if ((serialPort.IsOpen) && (serialPort.BytesToRead > 0))
{
string strReceptionTime = PortTools.GetTimeString();
int iBytesToRead = serialPort.BytesToRead;
// Are we already receiving a packet?
if ((RxCurrentPacket == null) || (RxCurrentPacket.Count == 0))
{
// No: instanciate a new packet
RxCurrentPacket = new List <byte>();
// Get the timecode
strCurrentPacketTimecode = PortTools.GetTimeString();
// Start the timer if necessary
if (eofDetection == EofDetection.Unknown)
{
timerPacketTimeout.Interval = this.GetPacketTimeoutValue();
timerPacketTimeout.Start();
}
}
else
{
// Yes, a packet is currently being received
}
// Now read the received bytes
// Create a temporary reading buffer
byte[] rxBuffer = new byte[iBytesToRead];
// Read the received bytes
serialPort.Read(rxBuffer, 0, iBytesToRead);
// Copy the received bytes to the current packet
RxCurrentPacket.AddRange(rxBuffer);
// Check if the packet is complete
switch (eofDetection)
{
case EofDetection.FixedSize:
if (RxCurrentPacket.Count >= this.iPacketLength)
{
// Upload the packet
UploadDataToMux(serialPort.PortName,
strCurrentPacketTimecode,
RxCurrentPacket.ToArray());
// Free the rx buffer
RxCurrentPacket.Clear();
}
break;
case EofDetection.FirstByte:
// Get the packet size
int iPacketSize = (int)RxCurrentPacket[0];
if (RxCurrentPacket.Count >= iPacketSize)
{
// Upload the packet
UploadDataToMux(serialPort.PortName,
strCurrentPacketTimecode,
RxCurrentPacket.ToArray());
}
break;
}
}
else
{
if (serialPort.IsOpen == false)
{
dataReceptionBackgroundWorker.CancelAsync();
}
// Pause thread for 100ms to breath
System.Threading.Thread.Sleep(100);
}
}
}