百度超级链XChainXVM虚拟机

Posted 2021-08-02 thefist11

XVM跟XuperBridge对接主要靠两个函数

• call_method，这个函数向Bridge传递需要调用的方法和参数
• fetch_response，这个函数向Bridge获取上次调用的结果

 extern "C" uint32_t call_method(const char* method, uint32_t method_len,
                             const char* request, uint32_t request_len);
 extern "C" uint32_t fetch_response(char* response, uint32_t response_len);
 
 static bool syscall_raw(const std::string& method, const std::string& request,
                         std::string* response) {
     uint32_t response_len;
     response_len = call_method(method.data(), uint32_t(method.size()),
                             request.data(), uint32_t(request.size()));
    if (response_len <= 0) {
        return true;
    }
    response->resize(response_len + 1, 0);
    uint32_t success;
    success = fetch_response(&(*response)[0u], response_len);
    return success == 1;
}