+ /* This is a workaround for fast position seek */
+ void * last_event_pos;
+
+ LttTime prev_block_end_time; //the end time of previous block
+ LttTime prev_event_time; //the time of the previous event
+ LttCycleCount pre_cycle_count; //previous cycle count of the event
+ int count; //the number of overflow of cycle count
+ /* end of workaround */