Method TrackersToPb

be/src/kudu/util/mem_tracker.cc:195–222

}

void MemTracker::TrackersToPb(MemTrackerPB* pb) {
  CHECK(pb);
  stack<std::pair<shared_ptr<MemTracker>, MemTrackerPB*>> to_process;
  to_process.emplace(std::make_pair(GetRootTracker(), pb));
  while (!to_process.empty()) {
    auto tracker_and_pb = std::move(to_process.top());
    to_process.pop();
    auto& tracker = tracker_and_pb.first;
    auto* tracker_pb = tracker_and_pb.second;
    tracker_pb->set_id(tracker->id());
    if (tracker->parent()) {
      tracker_pb->set_parent_id(tracker->parent()->id());
    }
    tracker_pb->set_limit(tracker->limit());
    tracker_pb->set_current_consumption(tracker->consumption());
    tracker_pb->set_peak_consumption(tracker->peak_consumption());
    {
      MutexLock l(tracker->child_trackers_lock_);
      for (const auto& child_weak : tracker->child_trackers_) {
        shared_ptr<MemTracker> child = child_weak.lock();
        if (child) {
          auto* child_pb = tracker_pb->add_child_trackers();
          to_process.emplace(std::make_pair(std::move(child), child_pb));
        }
      }
    }
  }
}

void MemTracker::Consume(int64_t bytes) {
  if (bytes < 0) {