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