Hello,
I am trying to listen all topics of an domain (like rtiddsspy ). first I am getting topic names and types (publicationDataListener )with an DDS:DataReaderListener. Then for each topic try to listen(publishedDatalistener) what data publishing. here is the problem, my publishedDataListener attached an datareader but it is never run the on_data_available() funcition. İf I try to get take() from datareader , I can reach data. however i need to get this when data comes (I mean on listener ).