lttv_traceset_destroy_position(event_viewer_data->currently_selected_position);
lttv_traceset_destroy_position(event_viewer_data->first_event);
lttv_traceset_destroy_position(event_viewer_data->last_event);
lttv_traceset_destroy_position(event_viewer_data->currently_selected_position);
lttv_traceset_destroy_position(event_viewer_data->first_event);
lttv_traceset_destroy_position(event_viewer_data->last_event);