/// <summary>
/// Translates the bytes for a Mode-S message into a cooked message object and causes a message received event to be raised on the background thread.
/// </summary>
/// <param name="now"></param>
/// <param name="extractedBytes"></param>
private void ProcessModeSMessageBytes(DateTime now, ExtractedBytes extractedBytes)
{
if (extractedBytes.Length == 7 || extractedBytes.Length == 14)
{
if (extractedBytes.HasParity)
{
_ModeSParity.StripParity(extractedBytes.Bytes, extractedBytes.Offset, extractedBytes.Length);
}
try {
var modeSMessage = _ModeSMessageTranslator.Translate(extractedBytes.Bytes, extractedBytes.Offset);
if (modeSMessage != null)
{
bool hasPIField = modeSMessage.ParityInterrogatorIdentifier != null;
bool isPIWithBadParity = hasPIField && modeSMessage.ParityInterrogatorIdentifier != 0;
var adsbMessage = _AdsbMessageTranslator.Translate(modeSMessage);
if ((hasPIField || isPIWithBadParity || adsbMessage == null) && _Statistics.Lock != null)
{
lock (_Statistics.Lock) {
if (hasPIField)
{
++_Statistics.ModeSWithPIField;
}
if (isPIWithBadParity)
{
++_Statistics.ModeSWithBadParityPIField;
}
if (adsbMessage == null)
{
++_Statistics.ModeSNotAdsbCount;
}
}
}
++TotalMessages;
_MessageProcessingAndDispatchQueue.Enqueue(new MessageDispatch()
{
ModeSMessageEventArgs = new ModeSMessageEventArgs(now, modeSMessage, adsbMessage)
});
}
} catch (Exception) {
++TotalBadMessages;
if (!IgnoreBadMessages)
{
throw;
}
}
}
}
/// <summary>
/// Translates the bytes for a Mode-S message into a cooked message object and causes a message received event to be raised on the background thread.
/// </summary>
/// <param name="now"></param>
/// <param name="extractedBytes"></param>
private void ProcessModeSMessageBytes(DateTime now, ExtractedBytes extractedBytes)
{
if (extractedBytes.Length == 7 || extractedBytes.Length == 14)
{
if (extractedBytes.HasParity)
{
_ModeSParity.StripParity(extractedBytes.Bytes, extractedBytes.Offset, extractedBytes.Length);
}
try {
var modeSMessage = _ModeSMessageTranslator.Translate(extractedBytes.Bytes, extractedBytes.Offset, extractedBytes.SignalLevel, extractedBytes.IsMlat);
if (modeSMessage != null)
{
bool hasPIField = modeSMessage.ParityInterrogatorIdentifier != null;
bool isPIWithBadParity = hasPIField && modeSMessage.ParityInterrogatorIdentifier != 0;
var adsbMessage = _AdsbMessageTranslator.Translate(modeSMessage);
if ((hasPIField || isPIWithBadParity || adsbMessage == null) && Statistics != null)
{
Statistics.Lock(r => {
if (hasPIField)
{
++r.ModeSWithPIField;
}
if (isPIWithBadParity)
{
++r.ModeSWithBadParityPIField;
++r.ModeSDFStatistics[(int)modeSMessage.DownlinkFormat].BadParityPI;
}
if (adsbMessage == null)
{
++r.ModeSNotAdsbCount;
}
});
}
if (adsbMessage != null && modeSMessage.DownlinkFormat == DownlinkFormat.ExtendedSquitterNonTransponder)
{
if (adsbMessage.TisbIcaoModeAFlag == 0)
{
switch (modeSMessage.ControlField)
{
case ControlField.CoarseFormatTisb:
case ControlField.FineFormatTisb:
modeSMessage.Icao24 = modeSMessage.NonIcao24Address.GetValueOrDefault();
modeSMessage.NonIcao24Address = null;
break;
}
}
}
++TotalMessages;
_MessageProcessingAndDispatchQueue.Enqueue(new MessageDispatch()
{
ModeSMessageEventArgs = new ModeSMessageEventArgs(now, modeSMessage, adsbMessage)
});
}
} catch (Exception) {
++TotalBadMessages;
if (!IgnoreBadMessages)
{
throw;
}
}
}
}