Method Clear

tensorflow/core/profiler/internal/traceme_recorder.cc:205–213

This method is performance critical and should be kept fast. It is called when tracing starts/stops. The mutex is held, so no threads can be registered/unregistered. This prevents calling ThreadLocalRecorder::Clear from two different threads.

// registered/unregistered. This prevents calling ThreadLocalRecorder::Clear
// from two different threads.
TraceMeRecorder::Events TraceMeRecorder::Clear() {
  TraceMeRecorder::Events result;
  std::swap(orphaned_events_, result);
  for (const auto& entry : threads_) {
    auto* recorder = entry.second;
    result.push_back(recorder->Clear());
  }
  return result;
}

bool TraceMeRecorder::StartRecording(int level) {
  level = std::max(0, level);