Method UpdateDuration

be/src/kudu/util/debug/trace_event_impl.cc:647–652

}

void TraceEvent::UpdateDuration(const MicrosecondsInt64& now,
                                const MicrosecondsInt64& thread_now) {
  DCHECK(duration_ == -1);
  duration_ = now - timestamp_;
  thread_duration_ = thread_now - thread_timestamp_;
}

namespace {
// Escape the given string using JSON rules.