gchar * ltt_trace_system_description_description (LttSystemDescription * s);
-/* get the start time of the trace */
+/* get the NTP start time of the trace */
-LttTime ltt_trace_system_description_trace_start_time(LttSystemDescription *s);
+LttTime ltt_trace_start_time(LttTrace *t);
+
+/* get the monotonic start time of the trace */
+
+LttTime ltt_trace_start_time_monotonic(LttTrace *t);
/* copy tracefile info over another. Used for sync. */
LttTracefile *ltt_tracefile_new();