Re: Reference counting

[Renato Cerqueira <rcerq@...>]

"J. Perkins" wrote:
> Diego Nehab wrote:
> 
> > When you do ref=lua_ref(L, 1), Lua reserves space in a reference vector
> > for that object, saves the object in that vector and returns an index to
> > you. When you call lua_getref(L, ref), Lua pushes the corresponding
> > index from that vector in the Lua stack. When you call lua_unref(L,
> > ref), Lua marks the position on the vector as free for further lua_ref
> > calls so that the value of ref is meaningless after the call to
> > lua_unref.
> >
> > (snip)
> >
> > Did that answer your question?
> 
> Yes, that did. I guess I need to do something like:
> 
>         lua_getref(L, ref);
>         lua_unref(L);
>         ref = lua_ref(L, 0);
> 
> ...to properly unlock an object then.

No, it is not true.
You just need to do:
   lua_unref(L,ref);

Regards,
Renato