Method initialize

src/brpc/policy/dh.cpp:34–52

}
    
int DHWrapper::initialize(bool ensure_128bytes_public_key) {
    for (;;) {
        if (do_initialize() != 0) {
            return -1;
        }
        if (ensure_128bytes_public_key) {
            const BIGNUM* pub_key = NULL;
            DH_get0_key(_pdh, &pub_key, NULL);
            int key_size = BN_num_bytes(pub_key);
            if (key_size != 128) {
                RPC_VLOG << "regenerate 128B key, current=" << key_size;
                clear();
                continue;
            }
        }
        break;
    }
    return 0;
}
    
int DHWrapper::copy_public_key(char* pkey, int* pkey_size) const {
    const BIGNUM* pub_key = NULL;