Re: [Boost-users] boost::serialization - extra 6 bytes overheadquestion?

From: Robert Ramey (ramey_at_[hidden])
Date: 2008-04-14 19:23:05

try using the xml_archive - all the "extra" bytes show up as labeled attributes.

Robert Ramey
  "j.c." <jolix_at_[hidden]> wrote in message news:F58B74D0-78DC-4E07-ABD5-3F0C7BAC831B_at_mac.com...
  ok I have this working, however...

  packet_base: 12
  packet_ping: 44
  0 1 0
  0 0 1001 44 2 3 7 32 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
           ^ packet actually starts here(packet_length).

  There are 6 extra bytes overhead I know that 1001 is my class version. What are 0, 1, 0, 0 and 0?

  I need this info for writing packet de-serialization in other languages.

  Thanks in advance.

  On Apr 14, 2008, at 8:21 AM, j.c. wrote:

    Sweet, just what I was looking for, thanks.

    On Apr 14, 2008, at 8:31 AM, Robert Ramey wrote:

      lookup base_object in the documentation.

      Robert Ramey

        "j.c." <jolix_at_[hidden]> wrote in message news:CB290CFC-9ABD-4FF9-80C1-766E3063F8A6_at_mac.com...
        I am writing a packet base class that can be serialized. The class so far looks like:

            class packet_base
            {
                using namespace boost;
                

                public:
                    packet_base();
                    ~packet_base();

                    friend class boost::serialization::access;
                    template <typename Archive>
                    void serialize(Archive & ar, const unsigned int version)
                    {
                        ar & m_length;
        ar & m_type;
        ar & m_method;
                    }

                private:
                

                    uint16_t m_length;
            uint16_t m_type;
            uint16_t m_method;
            };

        The question now is how can I derive class A from packet_base and have both packet_base and A's variables serialized? Obviously base_class needs to be archived first so it's variables are at the front of the buffer.

        Thanks in advance.
        J

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