Method UpdateChildCountersLocked

be/src/util/runtime-profile.cc:244–255

}

void RuntimeProfileBase::UpdateChildCountersLocked(const unique_lock<SpinLock>& lock,
      const ChildCounterMap& src) {
  DCHECK(lock.mutex() == &counter_map_lock_ && lock.owns_lock());
  // Merge all new parent->child edges into the map. This assumes that all 'src' maps
  // provided are consistent, i.e. one child does not have multiple parents.
  ChildCounterMap::const_iterator child_counter_src_itr;
  for (const auto& entry : src) {
    set<string>* child_counters =
        FindOrInsert(&child_counter_map_, entry.first, set<string>());
    child_counters->insert(entry.second.begin(), entry.second.end());
  }
}

RuntimeProfile* RuntimeProfile::Create(
    ObjectPool* pool, const string& name, bool add_default_counters) {