SerializableSingleton.hpp

/*

Copyright (c) 2005-2012, University of Oxford.
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*/

#ifndef SERIALIZABLESINGLETON_HPP_
#define SERIALIZABLESINGLETON_HPP_

#include <boost/utility.hpp>
#include "ChasteSerialization.hpp"
#include <boost/serialization/split_member.hpp>

template<class SINGLETON_CLASS>
class SerializableSingleton : private boost::noncopyable
{
public:
    SerializableSingleton<SINGLETON_CLASS>* GetSerializationWrapper() const
    {
        return const_cast<SerializableSingleton<SINGLETON_CLASS>*>(this);
    }

private:
    friend class boost::serialization::access;

    template<class Archive>
    void save(Archive & archive, const unsigned int version) const
    {
        SINGLETON_CLASS* p_instance = SINGLETON_CLASS::Instance();
        archive & *p_instance;
        archive & p_instance;
    }

    template<class Archive>
    void load(Archive & archive, const unsigned int version)
    {
        SINGLETON_CLASS* p_instance = SINGLETON_CLASS::Instance();
        archive & *p_instance;
        archive & p_instance;

        // To avoid a memory leak, we now need to delete this (temporary) wrapper, and
        // ideally tell the archive that it should be using the instance's instead.
        // Unfortunately reset_object_address doesn't work from within load(), so we
        // just create a new wrapper each time; not too bad.
        //archive.reset_object_address(p_instance->GetSerializationWrapper(), this);
        delete this;
    }
    BOOST_SERIALIZATION_SPLIT_MEMBER()
};

#endif // SERIALIZABLESINGLETON_HPP_