time = ltt_event_time(event);
ltt_event_position(event, a_event_position);
ltt_event_position_get(a_event_position, &tf_pos, &nb_block, &offset, &tsc);
//fprintf(fp,"%s.%s: %llu %lu.%09lu position %u/%u\n",
time = ltt_event_time(event);
ltt_event_position(event, a_event_position);
ltt_event_position_get(a_event_position, &tf_pos, &nb_block, &offset, &tsc);
//fprintf(fp,"%s.%s: %llu %lu.%09lu position %u/%u\n",