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- Subject: Re: Removing userdata variables!
- From: Dan Marks <dmarks@...>
- Date: Thu, 27 Aug 1998 10:28:34 -0500
The way I've always handled this is to create a tag number just for
"dead" variables, and change the lua Object to the dead tag number
using lua_settag(). That way, you can know its not valid anymore
and not use it, even if it is still in scope under Lua.
On Thu, Aug 27, 1998 at 12:18:44PM -0300, Erik Hougaard wrote:
> Quick question:
> I have a piece of code that receive a userdata with a C pointer in it!.
> My C function frees the pointer and I want to "delete" the variable that
> was passed to my function - What to do?
> Erik Hougaard
> s = createsession("modem") <- 's' now has a pointer to a allocated
> killsession(s) <- I'm freeing the memory - How do I get rid
> of s ?