基于Context进行Cipher加解密操作

struct cipher_async_tag {
  void *ctx;
void *pool;
int thread_id;
int cnt;
} *tag;
tag = malloc(sizeof(*tag));
tag->ctx = ctx;
tag->thread_id = thread_id;
tag->cnt = 0;
tag->pool = pool;
wd_do_cipher(ctx, &opdata, tag);