a->filter_conf = para_realloc(a->filter_conf,
(nf + 1) * sizeof(void *));
a->filter_nums = para_realloc(a->filter_nums,
(nf + 1) * sizeof(unsigned));
a->filter_conf = para_realloc(a->filter_conf,
(nf + 1) * sizeof(void *));
a->filter_nums = para_realloc(a->filter_nums,
(nf + 1) * sizeof(unsigned));