Function create_mspace_with_base

dlmalloc/dlmalloc.c:4789–4801

}

mspace create_mspace_with_base(void* base, size_t capacity, int locked) {
  mstate m = 0;
  size_t msize = pad_request(sizeof(struct malloc_state));
  init_mparams(); /* Ensure pagesize etc initialized */

  if (capacity > msize + TOP_FOOT_SIZE &&
      capacity < (size_t) -(msize + TOP_FOOT_SIZE + mparams.page_size)) {
    m = init_user_mstate((char*)base, capacity);
    m->seg.sflags = EXTERN_BIT;
    set_lock(m, locked);
  }
  return (mspace)m;
}

size_t destroy_mspace(mspace msp) {
  size_t freed = 0;