// Copyright (C) 2006 The Trustees of Indiana University. // 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: Douglas Gregor // Andrew Lumsdaine // This file contains the "unsafe_serialize" routine, which transforms // types they may not be serializable (such as void*) into // serializable equivalents. #ifndef BOOST_PROPERTY_MAP_UNSAFE_SERIALIZE_HPP #define BOOST_PROPERTY_MAP_UNSAFE_SERIALIZE_HPP #include <boost/mpi/datatype.hpp> #include <boost/serialization/is_bitwise_serializable.hpp> #include <boost/mpl/bool.hpp> #include <boost/mpl/if.hpp> #include <boost/cstdint.hpp> #include <boost/static_assert.hpp> #include <boost/type_traits.hpp> #include <utility> BOOST_IS_BITWISE_SERIALIZABLE(void*) namespace boost { namespace mpi { template<> struct is_mpi_datatype<void*> : mpl::true_ { }; } } // end namespace boost::mpi namespace boost { typedef mpl::if_c<(sizeof(int) == sizeof(void*)), int, mpl::if_c<(sizeof(long) == sizeof(void*)), long, mpl::if_c<(sizeof(void*) <= sizeof(boost::intmax_t)), boost::intmax_t, void>::type >::type >::type ptr_serialize_type; BOOST_STATIC_ASSERT ((!boost::is_void<ptr_serialize_type>::value)); template<typename T> inline T& unsafe_serialize(T& x) { return x; } inline ptr_serialize_type& unsafe_serialize(void*& x) { return reinterpret_cast<ptr_serialize_type&>(x); } // Force Boost.MPI to serialize a void* like a ptr_serialize_type namespace mpi { template<> inline MPI_Datatype get_mpi_datatype<void*>(void* const& x) { return get_mpi_datatype<ptr_serialize_type>(); } } template<typename T, typename U> struct unsafe_pair { unsafe_pair() { } unsafe_pair(const T& t, const U& u) : first(t), second(u) { } unsafe_pair(const std::pair<T, U>& p) : first(p.first), second(p.second) { } T first; U second; template<typename Archiver> void serialize(Archiver& ar, const unsigned /*version*/) { ar & unsafe_serialize(first) & unsafe_serialize(second); } }; template<typename T, typename U> bool operator<(unsafe_pair<T,U> const& x, unsafe_pair<T,U> const& y) { return std::make_pair(x.first, x.second) < std::make_pair(y.first, y.second); } } // end namespace boost #endif // BOOST_PROPERTY_MAP_UNSAFE_SERIALIZE_HPP