Function hasNewMessage

native/cocos/base/threading/MessageQueue.h:173–173

    void executeMessages() noexcept;
    Message *readMessage() noexcept;
    inline bool hasNewMessage() const noexcept { return _reader.newMessageCount > 0 && !_reader.flushingFinished; }
    void consumerThreadLoop() noexcept;

    WriterContext _writer;