void sglua_stack_dump(const char *msg, lua_State* L);
const char* sglua_get_spaces(int length);
int sglua_memory_writer(lua_State* L, const void* source, size_t size, void* userdata);
void sglua_stack_dump(const char *msg, lua_State* L);
const char* sglua_get_spaces(int length);
int sglua_memory_writer(lua_State* L, const void* source, size_t size, void* userdata);