RE: Reuse of userdata?

["Richard Ranft" <rranft@...>]

Is the object of this to create a sort of pool of "reuseable" userdata
instances to avoid allocation overhead?  What about a reference-counting
scheme?  Have the pool manager hold a reference to the userdata instance,
and farm out a second reference to the light object using it, then drop the
second ref when it's done, and drop the last ref when the pool manager
drops.

Um, looks good on paper....

And I have no real idea what I'm talking about.  I haven't gotten to
actually adding Lua to my project yet, I'm just lurking to see what others
are up to.

Rich