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- // (C) Copyright 2005 Matthias Troyer
- // Use, modification and distribution is subject to the Boost Software
- // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- // Authors: Matthias Troyer
- #ifndef BOOST_MPI_DETAIL_MPI_DATATYPE_OARCHIVE_HPP
- #define BOOST_MPI_DETAIL_MPI_DATATYPE_OARCHIVE_HPP
- #include <boost/type_traits/is_enum.hpp>
- #include <boost/mpl/bool.hpp>
- #include <boost/archive/detail/oserializer.hpp>
- #include <boost/archive/detail/auto_link_archive.hpp>
- #include <boost/archive/basic_archive.hpp>
- #include <boost/mpi/detail/ignore_skeleton_oarchive.hpp>
- #include <boost/mpi/detail/mpi_datatype_primitive.hpp>
- #include <boost/mpi/datatype_fwd.hpp>
- #include <boost/mpl/assert.hpp>
- #include <boost/static_assert.hpp>
- #include <boost/integer.hpp>
- #include <boost/archive/detail/register_archive.hpp>
- namespace boost { namespace mpi { namespace detail {
- // an archive wrapper that stores only the data members but not the
- // special types defined by the serialization library
- // to define the data skeletons (classes, pointers, container sizes, ...)
- class mpi_datatype_oarchive
- : public mpi_datatype_primitive,
- public ignore_skeleton_oarchive<mpi_datatype_oarchive>
- {
- public:
- template <class T>
- mpi_datatype_oarchive(const T& x)
- : mpi_datatype_primitive(&x) // register address
- {
- BOOST_MPL_ASSERT((is_mpi_datatype<T>));
- *this << x; // serialize the object
- }
- template<class T>
- void save_override(T const& t)
- {
- save_enum(t,boost::is_enum<T>());
- }
- template<class T>
- void save_enum(T const& t, mpl::false_)
- {
- ignore_skeleton_oarchive<mpi_datatype_oarchive>::save_override(t);
- }
- template<class T>
- void save_enum(T const& t, mpl::true_)
- {
- // select the right sized integer for the enum
- typedef typename boost::uint_t<8*sizeof(T)>::least int_type;
- BOOST_STATIC_ASSERT((sizeof(T)==sizeof(int_type)));
- this->save(*reinterpret_cast<int_type const*>(&t));
- }
- };
- } } } // end namespace boost::mpi::detail
- // required by export
- BOOST_SERIALIZATION_REGISTER_ARCHIVE(boost::mpi::detail::mpi_datatype_oarchive)
- BOOST_SERIALIZATION_REGISTER_ARCHIVE(boost::mpi::detail::ignore_skeleton_oarchive<boost::mpi::detail::mpi_datatype_oarchive>)
- BOOST_SERIALIZATION_USE_ARRAY_OPTIMIZATION(boost::mpi::detail::mpi_datatype_oarchive)
- #endif // BOOST_MPI_DETAIL_MPI_DATATYPE_OARCHIVE_HPP
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