// 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 PBGL_UNSAFE_SERIALIZE_HPP | |
#define PBGL_UNSAFE_SERIALIZE_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/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 // PBGL_UNSAFE_SERIALIZE_HPP |