| 114 | std::string _thread_num_option; |
| 115 | |
| 116 | std::vector<std::string> get_tracked_keys() const noexcept override { |
| 117 | if (_thread_num_option.empty()) { |
| 118 | return {}; |
| 119 | } else { |
| 120 | return {_thread_num_option}; |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | void handle_conf_change(const ConfigProxy& conf, |
| 125 | const std::set <std::string> &changed) override; |