Ruby-ffi based lib to access Tokyo Cabinet and Tyrant.
The ffi-based structures are available via the Rufus::Tokyo namespace.
There is a Rufus::Edo namespace that interfaces with Hirabayashi-san's native Ruby interface, and whose API is equal to the Rufus::Tokyo one.
Finally rufus-tokyo includes ffi-based interfaces to Tokyo Dystopia (thanks to Jeremy Hinegardner).