strange double var heeding 0

[Jeffrey Drake <wackysteak@...>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

My function call is such:

system.addTimer(0.1, timer1)

My C function follows at the end because of its size

The highlight of the code:

	luaL_checktype(L, -2,  LUA_TNUMBER);
	luaL_checktype(L, -1, LUA_TFUNCTION);

	ref1 = luaL_ref(L, LUA_REGISTRYINDEX);

	duration = lua_tonumber(L, -2);   // (duration is a double declared 
earlier)

	printf("Register duration: %f\n", duration);	

The output of the print statement results in 0, and gdb has reported 0 
as the value as well.

Even trying 0.5 results in the same thing. Am I doing something wrong 
at all?

( full source code available upon request)

"Reportedly, he remarked to one of his Christian missionary friends: 
'What you teach us to do is admirable, but what you teach us to believe 
is foolish'."
- - Referring to King Mongkut of Siam
http://en.wikipedia.org/wiki/Mongkut


static int register_timer(lua_State *L)
{
    GLView *view;
    int ref1;
    id ui;
    double duration;

    lua_pushlightuserdata(L, (void*)&Key);
    lua_gettable(L, LUA_REGISTRYINDEX);
    view = (GLView*)lua_touserdata(L, -1);
    lua_pop(L, 1);

    luaL_checktype(L, -2,  LUA_TNUMBER);
    luaL_checktype(L, -1, LUA_TFUNCTION);

    ref1 = luaL_ref(L, LUA_REGISTRYINDEX);

    duration = lua_tonumber(L, -2);

    printf("Register duration: %f\n", duration);

    ui = [NSNumber numberWithInt: ref1];

   // [ui retain];  // apparantly timer does this on its own

    NSTimer *timer = [NSTimer timerWithTimeInterval: duration
        target: view
        selector: @selector(performTimer:)
        userInfo: ui
        repeats: NO];

    [[NSRunLoop currentRunLoop] addTimer: timer forMode: 
NSDefaultRunLoopMode];

    lua_pop(L, 2);

    return 0;
}
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (Darwin)

iD8DBQFAwBCY0noMGorKkKgRAuDAAJ43qtYZHrZNsx3W3D89T9ye543hBACdEiy2
43IkvLTK4NJsPXh3W1iAemA=
=eo/k
-----END PGP SIGNATURE-----