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On Fri, Mar 28, 2014 at 1:21 PM, John Dunn <> wrote:
> If I have a userdata which is wrapping a limited resource ( file handle, socket, a huge block of memory ) is there a way to make the userdata exert pressure on the GC causing it to be cleaned up a quickly as possible? Ideally I'd like it to be cleaned up as soon as there are no references to the data but I don't want to have to call a global collectgarbage call all the time ( or at all ).
> John

I don't believe there is a way to prioritize collection of certain
object, not explicitly.  Lua provides :close() off of file handles so
you can at least close the internal file descriptor while you wait for
the masking userdata to be collected.  Perhaps you could do the same?