Hi all,
I am facing currently an issue with the mix of "boxed userdata" and
the garbage collector in one of our tools :
- Our userdatas exchanged between LUA and C are full-userdata,
but "boxed" : we allocate a newuserdata with the size of a
pointer, and we set the pointer to an internallly allocated
structure.
- Those internal structures are handling pictures, leading to
allocation of bigs memory chunks.
- But, from the LUA point of view, we allocate only a pointer
(ie 4 or 8 bytes typically) : so the memory computed by the
garbage collector is very low
- As a consequence, we run out of memory very quickly and we are
obliged to tweak the values of the PAUSE/MUL in the gc, wich is
not completly satisfactory.
I would like to know if this issue has already been adressed by
someone somewhere ?
If not, i would suggest to add (in lua 5.3 :) ? ) a way to allow
the increase/decrease of the memory counter used in the garbage
collector from the "external world" (either with a new lua_gc method
or with a lua_newuserboxeddata).
Any suggestion or ideas on this ?
Thanks, S. FABRE