question on forcibly stopping a thread

[David Andersen <david@...>]

I was reading through the mailing list and I saw that you can forcibly 
stop a thread by removing all trace of it from the stack.  I'm pretty 
new to lua, so I'm wondering if anyone can point me in the right 
direction.  I am looking for the correct C API commands to use to pop 
from the stack.  I'm afraid of introducing a memory leak.

Maybe its really easy and I just need to call :

threadState = lua_newthread(L);
<do stuff>
lua_pop(threadState, lua_gettop(threadState));

I am using the technique found in this posting to run AI scripts for a 
game, so I have lots of threads, and they need to be terminated 
immediately when the object they are attached to dies.

http://www.icynorth.com/forums/viewtopic.php?p=228&sid=4b08243f0dd2ebe6b8b416fe0bc4eeb4#228