xapian-bridge C port

endlessm/eos-sdk#2463
Hmm we don't generate introspection information for xapian-bridge. Since someone would need to open the C file and read the method (either the code or its doc block) in any case to find out memory transfer, I'd be inclined not to write gtk-doc blocks for any of the APIs.
Or maybe I misunderstood you and you are only suggesting a small comment saying not to unref the return value?