C++ message_ptr::set_opcode方法代码示例

void WebClient::onMessage(Client* c, websocketpp::connection_hdl hdl, message_ptr pMsg) {
	Client::connection_ptr con = c->get_con_from_hdl(hdl);
	std::string res_s = con->get_resource();
	if (res_s != "/codenjoy-contest/ws?user=" + userName) {
		res_s = "WebClient::onMessage(...) Server answer is not right: " + res_s;
		throw std::runtime_error(res_s.c_str());
	}
	std::string buffer_got = pMsg->get_payload();
	String boardString;
#ifdef _WIN32
	boardString.resize(MultiByteToWideChar(CP_UTF8, 0, &buffer_got[0], buffer_got.length(),
													   NULL, 0));
	MultiByteToWideChar(CP_UTF8, 0, &buffer_got[0], buffer_got.length(),
									&boardString[0], boardString.capacity());
#else //Assume linux
	boardString = buffer_got;
#endif 

	if (boardString.substr(0, 6) == LL("board=")) {
		boardString = boardString.substr(6, boardString.length() - 6);
		while (*boardString.rbegin() == LL('\0')) {
			boardString.pop_back();
		}

		Board b(boardString);

		String answer = solver->get(b);
		std::string utf_answer;
#ifdef _WIN32
		utf_answer.resize(WideCharToMultiByte(CP_UTF8, 0, &answer[0], answer.length(),
											   NULL, 0,  NULL, NULL));

		WideCharToMultiByte(CP_UTF8, 0, &answer[0], answer.length(),
										&utf_answer[0], utf_answer.capacity(), NULL, NULL);
		if (utf_answer == "") { // This happens if bomberman's still dead
			if (answer != LL("")) {
				throw std::runtime_error("WebClient::onMessage(...): Conversion from Char to utf8 error!");
			}
			return;
		}
#else // Assume linux
		utf_answer = answer;
#endif
		
		pMsg->set_opcode(websocketpp::frame::opcode::text);
		pMsg->set_payload(utf_answer);

		std::cout << "Sending ACTION: " << pMsg->get_payload() << std::endl;
		websocketpp::lib::error_code err;
		c->send(hdl, pMsg->get_payload(), pMsg->get_opcode(), err);
	}
}

    /**
     * Performs validation, masking, compression, etc. will return an error if
     * there was an error, otherwise msg will be ready to be written
     *
     * TODO: tests
     *
     * @param in An unprepared message to prepare
     * @param out A message to be overwritten with the prepared message
     * @return error code
     */
    virtual lib::error_code prepare_data_frame(message_ptr in, message_ptr out)
    {
        if (!in || !out) {
            return make_error_code(error::invalid_arguments);
        }

        frame::opcode::value op = in->get_opcode();

        // validate opcode: only regular data frames
        if (frame::opcode::is_control(op)) {
            return make_error_code(error::invalid_opcode);
        }

        std::string& i = in->get_raw_payload();
        std::string& o = out->get_raw_payload();

        // validate payload utf8
        if (op == frame::opcode::TEXT && !utf8_validator::validate(i)) {
            return make_error_code(error::invalid_payload);
        }

        frame::masking_key_type key;
        bool masked = !base::m_server;
        bool compressed = m_permessage_deflate.is_enabled()
                          && in->get_compressed();
        bool fin = in->get_fin();

        // generate header
        frame::basic_header h(op,i.size(),fin,masked,compressed);

        if (masked) {
            // Generate masking key.
            key.i = m_rng();

            frame::extended_header e(i.size(),key.i);
            out->set_header(frame::prepare_header(h,e));
        } else {
            frame::extended_header e(i.size());
            out->set_header(frame::prepare_header(h,e));
            key.i = 0;
        }

        // prepare payload
        if (compressed) {
            // compress and store in o after header.
            m_permessage_deflate.compress(i,o);

            // mask in place if necessary
            if (masked) {
                this->masked_copy(o,o,key);
            }
        } else {
            // no compression, just copy data into the output buffer
            o.resize(i.size());

            // if we are masked, have the masking function write to the output
            // buffer directly to avoid another copy. If not masked, copy
            // directly without masking.
            if (masked) {
                this->masked_copy(i,o,key);
            } else {
                std::copy(i.begin(),i.end(),o.begin());
            }
        }

        out->set_prepared(true);
        out->set_opcode(op);

        return lib::error_code();
    }