private void SendSentenceToFilterItems(NmeaSinkAndSource source, NmeaSentence sentence, FilterRule filter)
{
foreach (var sinkName in filter.Sinks)
{
if (_sourcesAndSinks.TryGetValue(sinkName, out var sink))
{
// If both source and sink are the local interface, we abort here, as we would be causing a
// stack overflow. Note that it is legal to loop messages over Uart interfaces as the TX and RX
// line need not be connected to the same physical device. If the receiver is doing the same there,
// we'll end up in trouble anyway, though.
if (source.InterfaceName == LocalMessageSource && sink.InterfaceName == LocalMessageSource)
{
continue;
}
if (filter.ForwardingAction != null)
{
var newMsg = filter.ForwardingAction(source, sink, sentence);
if (newMsg != null)
{
sink.SendSentence(source, newMsg);
}
}
else
{
sink.SendSentence(source, sentence);
}
}
}
}
