is it possible to set a minimum size for the stack of a lua_State?

[Graham Wakefield <lists@...>]

Is it possible to set a minimum size for the stack of a lua_State?

I'd like to pre-allocate (I often need more than 20 elements on the  
stack) and avoid gc from deallocating/reallocating this all the time.

Looked at lua_checkstack but I get error codes from it; even when  
only asking for 128 new spaces on the stack.

Sample code:

Lparent = lua_open();
luaL_openlibs(Lparent);	
	
// create the audio callback's child lua_State:
lua_pushstring(Lparent, "L");  /* push address */
L = lua_newthread(Lparent);
lua_settable(Lparent, LUA_REGISTRYINDEX); // protect from gc
	
// create some extra space on stack so that we don't overfill it:
if (lua_checkstack(L, 128)) error("Lua can't allocate stack  
space");	///< this error is triggered.