rn->buf = para_calloc(BUFSIZE);
rn->private_data = para_calloc(sizeof(struct private_http_recv_data));
phd = rn->private_data;
rn->buf = para_calloc(BUFSIZE);
rn->private_data = para_calloc(sizeof(struct private_http_recv_data));
phd = rn->private_data;