if (ap->mf_FileOperation.job_pop_list != NULL) { /*job callback must not run before*/
mf_util_clear_handler_list(ap);
ap->mf_FileOperation.job_pop_list = NULL;
if (ap->mf_FileOperation.job_pop_list != NULL) { /*job callback must not run before*/
mf_util_clear_handler_list(ap);
ap->mf_FileOperation.job_pop_list = NULL;