update time_utils

core/components/time_util.hpp

@@ -68,11 +68,16 @@ class T_TimeUtil {
   int64_t countdownTimeNs(time_point<T> endtime) { return dToNs(endtime - T::now()); }
 };
 
-typedef T_TimeUtil<system_clock> tu_sys;
-typedef T_TimeUtil<steady_clock> tu_steady;
+typedef T_TimeUtil<system_clock> tu_sys;     // not use in future
+typedef T_TimeUtil<steady_clock> tu_steady;  // not use in future
+typedef time_point<system_clock> tp_sys;     // not use in future
+typedef time_point<steady_clock> tp_steady;  // not use in future
 
-typedef time_point<system_clock> tp_sys;
-typedef time_point<steady_clock> tp_steady;
+// new api name
+typedef T_TimeUtil<system_clock> zsystem_clock;
+typedef T_TimeUtil<steady_clock> zsteady_clock;
 
+typedef time_point<system_clock> zsystem_tp;
+typedef time_point<steady_clock> zsteady_tp;
 };  // namespace core
 }  // namespace iflytop