Function tryagain

extlibs/lua/src/lmem.c:146–154

** In case of allocation fail, this function will call the GC to try ** to free some memory and then try the allocation again. ** (It should not be called when shrinking a block, because then the ** interpreter may be in the middle of a collection step.) */

** interpreter may be in the middle of a collection step.)
*/
static void *tryagain (lua_State *L, void *block,
                       size_t osize, size_t nsize) {
  global_State *g = G(L);
  if (ttisnil(&g->nilvalue)) {  /* is state fully build? */
    luaC_fullgc(L, 1);  /* try to free some memory... */
    return (*g->frealloc)(g->ud, block, osize, nsize);  /* try again */
  }
  else return NULL;  /* cannot free any memory without a full state */
}


/*