projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | // Copyright (C) 2007 Matthias Troyer |
| 2 | // | |
| 3 | // Use, modification and distribution is subject to the Boost Software | |
| 4 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
| 5 | // | |
| 6 | // This file contains helper data structures for use in transmitting | |
| 7 | // properties. The basic idea is to optimize away any storage for the | |
| 8 | // properties when no properties are specified. | |
| 9 | #ifndef BOOST_PARALLEL_DETAIL_UNTRACKED_PAIR_HPP | |
| 10 | #define BOOST_PARALLEL_DETAIL_UNTRACKED_PAIR_HPP | |
| 11 | ||
| 12 | #include <boost/mpi/datatype.hpp> | |
| 13 | #include <utility> // for std::pair | |
| 14 | #include <boost/serialization/utility.hpp> | |
| 15 | ||
| 16 | namespace boost { namespace parallel { namespace detail { | |
| 17 | ||
| 18 | /** | |
| 19 | * This structure is like std::pair, with the only difference | |
| 20 | * that tracking in the serialization library is turned off. | |
| 21 | */ | |
| 22 | ||
| 23 | template<typename T, typename U> | |
| 24 | struct untracked_pair : public std::pair<T,U> | |
| 25 | { | |
| 26 | untracked_pair() {} | |
| 27 | ||
| 28 | untracked_pair(const T& t, const U& u) | |
| 29 | : std::pair<T,U>(t,u) {} | |
| 30 | ||
| 31 | template<class T1, class U1> | |
| 32 | untracked_pair(std::pair<T1,U1> const& p) | |
| 33 | : std::pair<T,U>(p) {} | |
| 34 | }; | |
| 35 | ||
| 36 | template<typename T, typename U> | |
| 37 | inline untracked_pair<T, U> | |
| 38 | make_untracked_pair(const T& t, const U& u) | |
| 39 | { | |
| 40 | return untracked_pair<T,U>(t,u); | |
| 41 | } | |
| 42 | ||
| 43 | } } } // end namespace boost::parallel::detail | |
| 44 | ||
| 45 | namespace boost { namespace mpi { | |
| 46 | ||
| 47 | template<typename T, typename U> | |
| 48 | struct is_mpi_datatype<boost::parallel::detail::untracked_pair<T, U> > | |
| 49 | : is_mpi_datatype<std::pair<T,U> > {}; | |
| 50 | ||
| 51 | } } // end namespace boost::mpi | |
| 52 | ||
| 53 | namespace boost { namespace serialization { | |
| 54 | ||
| 55 | // pair | |
| 56 | template<class Archive, class F, class S> | |
| 57 | inline void serialize( | |
| 58 | Archive & ar, | |
| 59 | boost::parallel::detail::untracked_pair<F, S> & p, | |
| 60 | const unsigned int /* file_version */ | |
| 61 | ){ | |
| 62 | ar & boost::serialization::make_nvp("first", p.first); | |
| 63 | ar & boost::serialization::make_nvp("second", p.second); | |
| 64 | } | |
| 65 | ||
| 66 | template<typename T, typename U> | |
| 67 | struct is_bitwise_serializable< | |
| 68 | boost::parallel::detail::untracked_pair<T, U> > | |
| 69 | : is_bitwise_serializable<std::pair<T, U> > {}; | |
| 70 | ||
| 71 | template<typename T, typename U> | |
| 72 | struct implementation_level<boost::parallel::detail::untracked_pair<T, U> > | |
| 73 | : mpl::int_<object_serializable> {} ; | |
| 74 | ||
| 75 | template<typename T, typename U> | |
| 76 | struct tracking_level<boost::parallel::detail::untracked_pair<T, U> > | |
| 77 | : mpl::int_<track_never> {} ; | |
| 78 | ||
| 79 | } } // end namespace boost::serialization | |
| 80 | ||
| 81 | #endif // BOOST_PARALLEL_DETAIL_UNTRACKED_PAIR_HPP |