/// <summary>
/// Decode the ADCP data received using a seperate
/// thread. This thread will also pass data to all
/// _observers.
/// </summary>
private void ProcessDataThread()
{
while (_continue)
{
try
{
// Block until awoken when data is received
// Timeout every 60 seconds to see if shutdown occured
_eventWaitData.WaitOne();
// If wakeup was called to kill thread
if (!_continue)
{
return;
}
// Process all data in the buffer
// If the buffer cannot be processed
while (_incomingDataBuffer.Remaining() > DataSet.Ensemble.ENSEMBLE_HEADER_LEN)
{
// Decode the data sent to the codec
DecodeIncomingData();
// If wakeup was called to kill thread
if (!_continue)
{
return;
}
}
}
catch (ThreadAbortException)
{
// Thread is aborted to stop processing
return;
}
catch (Exception e)
{
log.Error("Error processing binary codec data.", e);
return;
}
// Send an event that processing is complete
if (ProcessDataCompleteEvent != null)
{
ProcessDataCompleteEvent();
// Clear the buffer
byte[] data = _incomingDataBuffer.ToArray().Skip((int)_incomingDataBuffer.Position).ToArray();
_incomingDataBuffer = new MemoryStreamExtensions(data);
_incomingDataBuffer.Position = 0;
}
}
}
/// <summary>
/// Clear the incoming buffer of all data.
/// </summary>
public void ClearIncomingData()
{
// Clear the buffer
//_incomingDataBuffer = new BlockingCollection<Byte>();
_incomingDataBuffer = new MemoryStreamExtensions(1028);
_incomingDataBuffer.Position = 0;
_headerStart.Clear();
lock (_nmeaBufferLock)
{
_nmeaBuffer.Clear();
}
}
/// <summary>
/// Constructor
/// Initialize values.
/// </summary>
public AdcpBinaryCodecForFiles()
{
_nmeaBuffer = new LinkedList <string>();
// Initialize buffer
//_incomingDataBuffer = new BlockingCollection<Byte>();
_incomingDataBuffer = new MemoryStreamExtensions(1028);
_incomingDataBuffer.Position = 0;
_headerStart = new List <byte>();
// Initialize the ensemble size to at least the HDRLEN
_currentEnsembleSize = DataSet.Ensemble.ENSEMBLE_HEADER_LEN;
// Initialize the thread
_continue = true;
_eventWaitData = new EventWaitHandle(false, EventResetMode.AutoReset);
_processDataThread = new Thread(ProcessDataThread);
_processDataThread.Name = "ADCP Binary Codec";
_processDataThread.Start();
}
/// <summary>
/// Decode the ADCP data received using a seperate
/// thread. This thread will also pass data to all
/// _observers.
/// </summary>
private void ProcessDataThread()
{
while (_continue)
{
try
{
// Block until awoken when data is received
// Timeout every 60 seconds to see if shutdown occured
_eventWaitData.WaitOne();
// If wakeup was called to kill thread
if (!_continue)
{
return;
}
// Process all data in the buffer
// If the buffer cannot be processed
while (_incomingDataBuffer.Remaining() > DataSet.Ensemble.ENSEMBLE_HEADER_LEN)
{
// Decode the data sent to the codec
DecodeIncomingData();
// If wakeup was called to kill thread
if (!_continue)
{
return;
}
}
}
catch (ThreadAbortException)
{
// Thread is aborted to stop processing
return;
}
catch (Exception e)
{
log.Error("Error processing binary codec data.", e);
return;
}
// Send an event that processing is complete
if (ProcessDataCompleteEvent != null)
{
ProcessDataCompleteEvent();
// Clear the buffer
byte[] data = _incomingDataBuffer.ToArray().Skip((int)_incomingDataBuffer.Position).ToArray();
_incomingDataBuffer = new MemoryStreamExtensions(data);
_incomingDataBuffer.Position = 0;
}
}
}
/// <summary>
/// Clear the incoming buffer of all data.
/// </summary>
public void ClearIncomingData()
{
// Clear the buffer
//_incomingDataBuffer = new BlockingCollection<Byte>();
_incomingDataBuffer = new MemoryStreamExtensions(1028);
_incomingDataBuffer.Position = 0;
_headerStart.Clear();
lock (_nmeaBufferLock)
{
_nmeaBuffer.Clear();
}
}
/// <summary>
/// Constructor
/// Initialize values.
/// </summary>
public AdcpBinaryCodecForFiles()
{
_nmeaBuffer = new LinkedList<string>();
// Initialize buffer
//_incomingDataBuffer = new BlockingCollection<Byte>();
_incomingDataBuffer = new MemoryStreamExtensions(1028);
_incomingDataBuffer.Position = 0;
_headerStart = new List<byte>();
// Initialize the ensemble size to at least the HDRLEN
_currentEnsembleSize = DataSet.Ensemble.ENSEMBLE_HEADER_LEN;
// Initialize the thread
_continue = true;
_eventWaitData = new EventWaitHandle(false, EventResetMode.AutoReset);
_processDataThread = new Thread(ProcessDataThread);
_processDataThread.Name = "ADCP Binary Codec";
_processDataThread.Start();
}
