Chris@16: #ifndef BOOST_SERIALIZATION_SHARED_PTR_HPP
Chris@16: #define BOOST_SERIALIZATION_SHARED_PTR_HPP
Chris@16: 
Chris@16: // MS compatible compilers support #pragma once
Chris@101: #if defined(_MSC_VER)
Chris@16: # pragma once
Chris@16: #endif
Chris@16: 
Chris@16: /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
Chris@16: // shared_ptr.hpp: serialization for boost shared pointer
Chris@16: 
Chris@16: // (C) Copyright 2004 Robert Ramey and Martin Ecker
Chris@16: // Use, modification and distribution is subject to the Boost Software
Chris@16: // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: //  See http://www.boost.org for updates, documentation, and revision history.
Chris@16: 
Chris@16: #include <cstddef> // NULL
Chris@101: #include <memory>
Chris@16: 
Chris@16: #include <boost/config.hpp>
Chris@16: #include <boost/mpl/integral_c.hpp>
Chris@16: #include <boost/mpl/integral_c_tag.hpp>
Chris@16: 
Chris@16: #include <boost/detail/workaround.hpp>
Chris@16: #include <boost/shared_ptr.hpp>
Chris@16: 
Chris@101: #include <boost/serialization/shared_ptr_helper.hpp>
Chris@16: #include <boost/serialization/split_free.hpp>
Chris@16: #include <boost/serialization/nvp.hpp>
Chris@16: #include <boost/serialization/version.hpp>
Chris@16: #include <boost/serialization/tracking.hpp>
Chris@16: 
Chris@16: /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
Chris@101: // boost:: shared_ptr serialization traits
Chris@16: // version 1 to distinguish from boost 1.32 version. Note: we can only do this
Chris@16: // for a template when the compiler supports partial template specialization
Chris@16: 
Chris@16: #ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
Chris@16:     namespace boost {
Chris@16:     namespace serialization{
Chris@16:         template<class T>
Chris@16:         struct version< ::boost::shared_ptr< T > > {
Chris@16:             typedef mpl::integral_c_tag tag;
Chris@16:             #if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3206))
Chris@101:             typedef typename mpl::int_<1> type;
Chris@16:             #else
Chris@16:             typedef mpl::int_<1> type;
Chris@16:             #endif
Chris@16:             #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x570))
Chris@16:             BOOST_STATIC_CONSTANT(int, value = 1);
Chris@16:             #else
Chris@16:             BOOST_STATIC_CONSTANT(int, value = type::value);
Chris@16:             #endif
Chris@16:         };
Chris@16:         // don't track shared pointers
Chris@16:         template<class T>
Chris@16:         struct tracking_level< ::boost::shared_ptr< T > > { 
Chris@16:             typedef mpl::integral_c_tag tag;
Chris@16:             #if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3206))
Chris@101:             typedef typename mpl::int_< ::boost::serialization::track_never> type;
Chris@16:             #else
Chris@16:             typedef mpl::int_< ::boost::serialization::track_never> type;
Chris@16:             #endif
Chris@16:             #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x570))
Chris@16:             BOOST_STATIC_CONSTANT(int, value = ::boost::serialization::track_never);
Chris@16:             #else
Chris@16:             BOOST_STATIC_CONSTANT(int, value = type::value);
Chris@16:             #endif
Chris@16:         };
Chris@16:     }}
Chris@16:     #define BOOST_SERIALIZATION_SHARED_PTR(T)
Chris@16: #else
Chris@16:     // define macro to let users of these compilers do this
Chris@16:     #define BOOST_SERIALIZATION_SHARED_PTR(T)                         \
Chris@16:     BOOST_CLASS_VERSION(                                              \
Chris@16:         ::boost::shared_ptr< T >,                                     \
Chris@16:         1                                                             \
Chris@16:     )                                                                 \
Chris@16:     BOOST_CLASS_TRACKING(                                             \
Chris@16:         ::boost::shared_ptr< T >,                                     \
Chris@16:         ::boost::serialization::track_never                           \
Chris@16:     )                                                                 \
Chris@16:     /**/
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace serialization{
Chris@16: 
Chris@16: struct null_deleter {
Chris@16:     void operator()(void const *) const {}
Chris@16: };
Chris@16: 
Chris@16: /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
Chris@101: // serialization for boost::shared_ptr
Chris@101: 
Chris@101: // Using a constant means that all shared pointers are held in the same set.
Chris@101: // Thus we detect handle multiple pointers to the same value instances
Chris@101: // in the archive.
Chris@101: void * const shared_ptr_helper_id = 0;
Chris@16: 
Chris@16: template<class Archive, class T>
Chris@16: inline void save(
Chris@16:     Archive & ar,
Chris@16:     const boost::shared_ptr< T > &t,
Chris@16:     const unsigned int /* file_version */
Chris@16: ){
Chris@16:     // The most common cause of trapping here would be serializing
Chris@16:     // something like shared_ptr<int>.  This occurs because int
Chris@16:     // is never tracked by default.  Wrap int in a trackable type
Chris@16:     BOOST_STATIC_ASSERT((tracking_level< T >::value != track_never));
Chris@16:     const T * t_ptr = t.get();
Chris@16:     ar << boost::serialization::make_nvp("px", t_ptr);
Chris@16: }
Chris@16: 
Chris@16: #ifdef BOOST_SERIALIZATION_SHARED_PTR_132_HPP
Chris@16: template<class Archive, class T>
Chris@16: inline void load(
Chris@16:     Archive & ar,
Chris@16:     boost::shared_ptr< T > &t,
Chris@16:     const unsigned int file_version
Chris@16: ){
Chris@16:     // something like shared_ptr<int>.  This occurs because int
Chris@16:     // is never tracked by default.  Wrap int in a trackable type
Chris@16:     BOOST_STATIC_ASSERT((tracking_level< T >::value != track_never));
Chris@16:     T* r;
Chris@16:     if(file_version < 1){
Chris@16:         ar.register_type(static_cast<
Chris@16:             boost_132::detail::sp_counted_base_impl<T *, null_deleter > *
Chris@16:         >(NULL));
Chris@16:         boost_132::shared_ptr< T > sp;
Chris@16:         ar >> boost::serialization::make_nvp("px", sp.px);
Chris@16:         ar >> boost::serialization::make_nvp("pn", sp.pn);
Chris@16:         // got to keep the sps around so the sp.pns don't disappear
Chris@101:         boost::serialization::shared_ptr_helper<boost::shared_ptr> & h =
Chris@101:             ar.template get_helper< shared_ptr_helper<boost::shared_ptr> >(
Chris@101:                 shared_ptr_helper_id
Chris@101:             );
Chris@101:         h.append(sp);
Chris@16:         r = sp.get();
Chris@16:     }
Chris@16:     else{
Chris@16:         ar >> boost::serialization::make_nvp("px", r);
Chris@16:     }
Chris@101:     shared_ptr_helper<boost::shared_ptr> & h =
Chris@101:         ar.template get_helper<shared_ptr_helper<boost::shared_ptr> >(
Chris@101:             shared_ptr_helper_id
Chris@101:         );
Chris@101:     h.reset(t,r);
Chris@16: }
Chris@101: #else
Chris@16: 
Chris@16: template<class Archive, class T>
Chris@16: inline void load(
Chris@16:     Archive & ar,
Chris@16:     boost::shared_ptr< T > &t,
Chris@16:     const unsigned int /*file_version*/
Chris@16: ){
Chris@16:     // The most common cause of trapping here would be serializing
Chris@16:     // something like shared_ptr<int>.  This occurs because int
Chris@16:     // is never tracked by default.  Wrap int in a trackable type
Chris@16:     BOOST_STATIC_ASSERT((tracking_level< T >::value != track_never));
Chris@16:     T* r;
Chris@16:     ar >> boost::serialization::make_nvp("px", r);
Chris@101: 
Chris@101:     boost::serialization::shared_ptr_helper<boost::shared_ptr> & h =
Chris@101:         ar.template get_helper<shared_ptr_helper<boost::shared_ptr> >(
Chris@101:             shared_ptr_helper_id
Chris@101:         );
Chris@101:     h.reset(t,r);    
Chris@16: }
Chris@16: #endif
Chris@16: 
Chris@16: template<class Archive, class T>
Chris@16: inline void serialize(
Chris@16:     Archive & ar,
Chris@16:     boost::shared_ptr< T > &t,
Chris@16:     const unsigned int file_version
Chris@16: ){
Chris@16:     // correct shared_ptr serialization depends upon object tracking
Chris@16:     // being used.
Chris@16:     BOOST_STATIC_ASSERT(
Chris@16:         boost::serialization::tracking_level< T >::value
Chris@16:         != boost::serialization::track_never
Chris@16:     );
Chris@16:     boost::serialization::split_free(ar, t, file_version);
Chris@16: }
Chris@16: 
Chris@16: } // namespace serialization
Chris@16: } // namespace boost
Chris@16: 
Chris@101: /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
Chris@101: // std::shared_ptr serialization traits
Chris@101: // version 1 to distinguish from boost 1.32 version. Note: we can only do this
Chris@101: // for a template when the compiler supports partial template specialization
Chris@101: 
Chris@101: #ifndef BOOST_NO_CXX11_SMART_PTR
Chris@101: #include <boost/static_assert.hpp>
Chris@101: 
Chris@101: // note: we presume that any compiler/library which supports C++11
Chris@101: // std::pointers also supports template partial specialization
Chris@101: // trap here if such presumption were to turn out to wrong!!!
Chris@101: #ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
Chris@101:     BOOST_STATIC_ASSERT(false);
Chris@101: #endif
Chris@101: 
Chris@101: namespace boost {
Chris@101: namespace serialization{
Chris@101:     template<class T>
Chris@101:     struct version< ::std::shared_ptr< T > > {
Chris@101:         typedef mpl::integral_c_tag tag;
Chris@101:         typedef mpl::int_<1> type;
Chris@101:         BOOST_STATIC_CONSTANT(int, value = type::value);
Chris@101:     };
Chris@101:     // don't track shared pointers
Chris@101:     template<class T>
Chris@101:     struct tracking_level< ::std::shared_ptr< T > > { 
Chris@101:         typedef mpl::integral_c_tag tag;
Chris@101:         typedef mpl::int_< ::boost::serialization::track_never> type;
Chris@101:         BOOST_STATIC_CONSTANT(int, value = type::value);
Chris@101:     };
Chris@101: }}
Chris@101: // the following just keeps older programs from breaking
Chris@101: #define BOOST_SERIALIZATION_SHARED_PTR(T)
Chris@101: 
Chris@101: namespace boost {
Chris@101: namespace serialization{
Chris@101: 
Chris@101: /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
Chris@101: // serialization for std::shared_ptr
Chris@101: 
Chris@101: template<class Archive, class T>
Chris@101: inline void save(
Chris@101:     Archive & ar,
Chris@101:     const std::shared_ptr< T > &t,
Chris@101:     const unsigned int /* file_version */
Chris@101: ){
Chris@101:     // The most common cause of trapping here would be serializing
Chris@101:     // something like shared_ptr<int>.  This occurs because int
Chris@101:     // is never tracked by default.  Wrap int in a trackable type
Chris@101:     BOOST_STATIC_ASSERT((tracking_level< T >::value != track_never));
Chris@101:     const T * t_ptr = t.get();
Chris@101:     ar << boost::serialization::make_nvp("px", t_ptr);
Chris@101: }
Chris@101: 
Chris@101: template<class Archive, class T>
Chris@101: inline void load(
Chris@101:     Archive & ar,
Chris@101:     std::shared_ptr< T > &t,
Chris@101:     const unsigned int /*file_version*/
Chris@101: ){
Chris@101:     // The most common cause of trapping here would be serializing
Chris@101:     // something like shared_ptr<int>.  This occurs because int
Chris@101:     // is never tracked by default.  Wrap int in a trackable type
Chris@101:     BOOST_STATIC_ASSERT((tracking_level< T >::value != track_never));
Chris@101:     T* r;
Chris@101:     ar >> boost::serialization::make_nvp("px", r);
Chris@101:     //void (* const id)(Archive &, std::shared_ptr< T > &, const unsigned int) = & load;
Chris@101:     boost::serialization::shared_ptr_helper<std::shared_ptr> & h =
Chris@101:         ar.template get_helper<
Chris@101:             shared_ptr_helper<std::shared_ptr>
Chris@101:         >(
Chris@101:             shared_ptr_helper_id
Chris@101:         );
Chris@101:     h.reset(t,r);
Chris@101: }
Chris@101: 
Chris@101: template<class Archive, class T>
Chris@101: inline void serialize(
Chris@101:     Archive & ar,
Chris@101:     std::shared_ptr< T > &t,
Chris@101:     const unsigned int file_version
Chris@101: ){
Chris@101:     // correct shared_ptr serialization depends upon object tracking
Chris@101:     // being used.
Chris@101:     BOOST_STATIC_ASSERT(
Chris@101:         boost::serialization::tracking_level< T >::value
Chris@101:         != boost::serialization::track_never
Chris@101:     );
Chris@101:     boost::serialization::split_free(ar, t, file_version);
Chris@101: }
Chris@101: 
Chris@101: } // namespace serialization
Chris@101: } // namespace boost
Chris@101: 
Chris@101: #endif // BOOST_NO_CXX11_SMART_PTR
Chris@101: 
Chris@16: #endif // BOOST_SERIALIZATION_SHARED_PTR_HPP