ud-source-c-.md

The UDSource API provides the following methods for extension by subclasses:

virtual void setup(ServerInterface &srvInterface);

virtual bool useSideChannel();

virtual StreamState process(ServerInterface &srvInterface, DataBuffer &output)=0;

virtual StreamState processWithMetadata(ServerInterface &srvInterface, DataBuffer &output, LengthBuffer &output_lengths)=0;

virtual void cancel(ServerInterface &srvInterface);

virtual void destroy(ServerInterface &srvInterface);

virtual vint getSize();

virtual std::string getUri();