Function luaC_runtilstate

lib/lua/src/lgc.c:1652–1656

** advances the garbage collector until it reaches a state allowed ** by 'statemask' */

** by 'statemask'
*/
void luaC_runtilstate (lua_State *L, int statesmask) {
  global_State *g = G(L);
  while (!testbit(statesmask, g->gcstate))
    singlestep(L);
}