+gboolean event_time_after(guint32 t1, guint32 t2);
+
+/*! Time at which the current event occured. If this is not known, this
+ is a time at or after it, but at or before any other events we will process
+*/
+Time event_time(void);
+
+/*! Force event_time() to skip the current timestamp and look for the next
+ one. */
+void event_reset_time(void);