Function _mi_prim_commit

system/lib/mimalloc/src/prim/unix/prim.c:472–485

int _mi_prim_commit(void* start, size_t size, bool* is_zero) {
  // commit: ensure we can access the area
  // note: we may think that *is_zero can be true since the memory
  // was either from mmap PROT_NONE, or from decommit MADV_DONTNEED, but
  // we sometimes call commit on a range with still partially committed
  // memory and `mprotect` does not zero the range.
  *is_zero = false;
  int err = mprotect(start, size, (PROT_READ | PROT_WRITE));
  if (err != 0) {
    err = errno;
    unix_mprotect_hint(err);
  }
  return err;
}

int _mi_prim_reuse(void* start, size_t size) {
  MI_UNUSED(start); MI_UNUSED(size);