You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and dots ('.'), can be up to 35 characters long. Letters must be lowercase.
152 lines
4.9 KiB
152 lines
4.9 KiB
// Copyright (C) 2007 Douglas Gregor and 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 |
|
// |
|
// This file contains helper data structures for use in transmitting |
|
// properties. The basic idea is to optimize away any storage for the |
|
// properties when no properties are specified. |
|
#ifndef BOOST_PARALLEL_DETAIL_PROPERTY_HOLDERS_HPP |
|
#define BOOST_PARALLEL_DETAIL_PROPERTY_HOLDERS_HPP |
|
|
|
#ifndef BOOST_GRAPH_USE_MPI |
|
#error "Parallel BGL files should not be included unless <boost/graph/use_mpi.hpp> has been included" |
|
#endif |
|
|
|
#include <boost/mpi/datatype.hpp> |
|
#include <boost/property_map/property_map.hpp> |
|
#include <boost/serialization/base_object.hpp> |
|
#include <boost/mpl/and.hpp> |
|
#include <boost/graph/parallel/detail/untracked_pair.hpp> |
|
|
|
namespace boost { namespace detail { namespace parallel { |
|
|
|
/** |
|
* This structure contains an instance of @c Property, unless @c |
|
* Property is a placeholder for "no property". Always access the |
|
* property through @c get_property. Typically used as a base class. |
|
*/ |
|
template<typename Property> |
|
struct maybe_store_property |
|
{ |
|
maybe_store_property() {} |
|
maybe_store_property(const Property& p) : p(p) {} |
|
|
|
Property& get_property() { return p; } |
|
const Property& get_property() const { return p; } |
|
|
|
private: |
|
Property p; |
|
|
|
friend class boost::serialization::access; |
|
|
|
template<typename Archiver> |
|
void serialize(Archiver& ar, const unsigned int /*version*/) |
|
{ |
|
ar & p; |
|
} |
|
}; |
|
|
|
template<> |
|
struct maybe_store_property<no_property> |
|
{ |
|
maybe_store_property() {} |
|
maybe_store_property(no_property) {} |
|
|
|
no_property get_property() const { return no_property(); } |
|
|
|
private: |
|
friend class boost::serialization::access; |
|
|
|
template<typename Archiver> |
|
void serialize(Archiver&, const unsigned int /*version*/) { } |
|
}; |
|
|
|
/** |
|
* This structure is a simple pair that also contains a property. |
|
*/ |
|
template<typename T, typename U, typename Property> |
|
class pair_with_property |
|
: public boost::parallel::detail::untracked_pair<T, U> |
|
, public maybe_store_property<Property> |
|
{ |
|
public: |
|
typedef boost::parallel::detail::untracked_pair<T, U> pair_base; |
|
typedef maybe_store_property<Property> property_base; |
|
|
|
pair_with_property() { } |
|
|
|
pair_with_property(const T& t, const U& u, const Property& property) |
|
: pair_base(t, u), property_base(property) { } |
|
|
|
private: |
|
friend class boost::serialization::access; |
|
|
|
template<typename Archiver> |
|
void serialize(Archiver& ar, const unsigned int /*version*/) |
|
{ |
|
ar & boost::serialization::base_object<pair_base>(*this) |
|
& boost::serialization::base_object<property_base>(*this); |
|
} |
|
}; |
|
|
|
template<typename T, typename U, typename Property> |
|
inline pair_with_property<T, U, Property> |
|
make_pair_with_property(const T& t, const U& u, const Property& property) |
|
{ |
|
return pair_with_property<T, U, Property>(t, u, property); |
|
} |
|
|
|
} } } // end namespace boost::parallel::detail |
|
|
|
namespace boost { namespace mpi { |
|
|
|
template<> |
|
struct is_mpi_datatype<boost::detail::parallel::maybe_store_property<no_property> > : mpl::true_ { }; |
|
|
|
template<typename Property> |
|
struct is_mpi_datatype<boost::detail::parallel::maybe_store_property<Property> > |
|
: is_mpi_datatype<Property> { }; |
|
|
|
template<typename T, typename U, typename Property> |
|
struct is_mpi_datatype<boost::detail::parallel::pair_with_property<T, U, Property> > |
|
: boost::mpl::and_<is_mpi_datatype<boost::parallel::detail::untracked_pair<T, U> >, |
|
is_mpi_datatype<Property> > { }; |
|
|
|
} } // end namespace boost::mpi |
|
|
|
BOOST_IS_BITWISE_SERIALIZABLE(boost::detail::parallel::maybe_store_property<no_property>) |
|
|
|
namespace boost { namespace serialization { |
|
|
|
template<typename Property> |
|
struct is_bitwise_serializable<boost::detail::parallel::maybe_store_property<Property> > |
|
: is_bitwise_serializable<Property> { }; |
|
|
|
template<typename Property> |
|
struct implementation_level<boost::detail::parallel::maybe_store_property<Property> > |
|
: mpl::int_<object_serializable> {} ; |
|
|
|
template<typename Property> |
|
struct tracking_level<boost::detail::parallel::maybe_store_property<Property> > |
|
: mpl::int_<track_never> {} ; |
|
|
|
template<typename T, typename U, typename Property> |
|
struct is_bitwise_serializable< |
|
boost::detail::parallel::pair_with_property<T, U, Property> > |
|
: boost::mpl::and_<is_bitwise_serializable<boost::parallel::detail::untracked_pair<T, U> >, |
|
is_bitwise_serializable<Property> > { }; |
|
|
|
template<typename T, typename U, typename Property> |
|
struct implementation_level< |
|
boost::detail::parallel::pair_with_property<T, U, Property> > |
|
: mpl::int_<object_serializable> {} ; |
|
|
|
template<typename T, typename U, typename Property> |
|
struct tracking_level< |
|
boost::detail::parallel::pair_with_property<T, U, Property> > |
|
: mpl::int_<track_never> {} ; |
|
|
|
} } // end namespace boost::serialization |
|
|
|
#endif // BOOST_PARALLEL_DETAIL_PROPERTY_HOLDERS_HPP
|
|
|