lua_xmove

["Jeffrey Williams" <jwilliams@...>]

I've been using lua_xmove to allow one lua_State to call functions in 
another lua_State, but I am concerned that what I am doing is not a 
legitimate usage of lua.

Here are some more specifics...  the two lua_State's involved are not lua 
"threads", they are two separate states created by two calls to 
lua_Open/lua_dofile

I do something like this:

lua_getglobal(L, "myfunc"); // on top of stack now resides a function
lua_xmove(L, L2, 1);
lua_pushnumber(L2, 23);
lua_pcall(L2, 0, 0, 0); // call myfunc(2) in L from state L2

It seems to work, but I am concerned that perhaps I am misusing the api and 
that it only works in certain cases.  So my question is:  Is this proper 
usage or is it just luck that it doesnt crash on me?

Jeff