| // (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 |
| } |
| |
| // intermediate level to support override of operators |
| // for templates in the absence of partial function |
| // template ordering |
| template<class T> |
| void save_override(T const& t, BOOST_PFTO int) |
| { |
| 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, 0); |
| } |
| |
| 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 |