Method adjust_stack

src/test/osd/Object.cc:84–117

}

void ObjectDesc::iterator::adjust_stack() {
  while (!stack.empty() && pos >= stack.top().second.next) {
    ceph_assert(pos == stack.top().second.next);
    size = stack.top().second.size;
    current = stack.top().first;
    stack.pop();
  }

  if (stack.empty()) {
    cur_valid_till = std::numeric_limits<uint64_t>::max();
  } else {
    cur_valid_till = stack.top().second.next;
  }

  while (current != layers.end() && !current->covers(pos)) {
    uint64_t next = current->next(pos);
    if (next < cur_valid_till) {
      stack.emplace(current, StackState{next, size});
      cur_valid_till = next;
    }

    ++current;
  }

  if (current == layers.end()) {
    size = 0;
  } else {
    current->iter.seek(pos);
    size = std::min(size, current->get_size());
    cur_valid_till = std::min(
      current->valid_till(pos),
      cur_valid_till);
  }
}

const ContDesc &ObjectDesc::most_recent() {
  return layers.begin()->second;