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Diffstat (limited to '3rdParty/Boost/src/boost/archive/shared_ptr_helper.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/archive/shared_ptr_helper.hpp | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/archive/shared_ptr_helper.hpp b/3rdParty/Boost/src/boost/archive/shared_ptr_helper.hpp new file mode 100644 index 0000000..39e6eb8 --- /dev/null +++ b/3rdParty/Boost/src/boost/archive/shared_ptr_helper.hpp @@ -0,0 +1,219 @@ +#ifndef BOOST_ARCHIVE_SHARED_PTR_HELPER_HPP +#define BOOST_ARCHIVE_SHARED_PTR_HELPER_HPP + +// MS compatible compilers support #pragma once +#if defined(_MSC_VER) && (_MSC_VER >= 1020) +# pragma once +#endif + +/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 +// shared_ptr_helper.hpp: serialization for boost shared pointern + +// (C) Copyright 2004-2009 Robert Ramey, Martin Ecker and Takatoshi Kondo +// 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) + +// See http://www.boost.org for updates, documentation, and revision history. + +#include <set> +#include <list> +#include <utility> +#include <cstddef> // NULL + +#include <boost/config.hpp> +#include <boost/shared_ptr.hpp> + +#include <boost/type_traits/is_polymorphic.hpp> +#include <boost/serialization/type_info_implementation.hpp> +#include <boost/serialization/shared_ptr_132.hpp> +#include <boost/serialization/throw_exception.hpp> + +#include <boost/archive/archive_exception.hpp> +#include <boost/archive/detail/decl.hpp> + +#include <boost/archive/detail/abi_prefix.hpp> // must be the last headern + +namespace boost_132 { + template<class T> class shared_ptr; +} +namespace boost { + template<class T> class shared_ptr; + namespace serialization { + class extended_type_info; + template<class Archive, class T> + inline void load( + Archive & ar, + boost::shared_ptr< T > &t, + const unsigned int file_version + ); + } +namespace archive{ +namespace detail { + +/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 +// a common class for holding various types of shared pointers + +class shared_ptr_helper { + struct collection_type_compare { + bool operator()( + const shared_ptr<const void> &lhs, + const shared_ptr<const void> &rhs + )const{ + return lhs.get() < rhs.get(); + } + }; + typedef std::set< + boost::shared_ptr<const void>, + collection_type_compare + > collection_type; + typedef collection_type::const_iterator iterator_type; + // list of shared_pointers create accessable by raw pointer. This + // is used to "match up" shared pointers loaded at different + // points in the archive. Note, we delay construction until + // it is actually used since this is by default included as + // a "mix-in" even if shared_ptr isn't used. + collection_type * m_pointers; + + struct null_deleter { + void operator()(void const *) const {} + }; + + struct void_deleter { + const boost::serialization::extended_type_info * m_eti; + void_deleter(const boost::serialization::extended_type_info *eti) : + m_eti(eti) + {} + void operator()(void *vp) const { + m_eti->destroy(vp); + } + }; + +#ifdef BOOST_NO_MEMBER_TEMPLATE_FRIENDS +public: +#else + template<class Archive, class T> + friend inline void boost::serialization::load( + Archive & ar, + boost::shared_ptr< T > &t, + const unsigned int file_version + ); +#endif + +// #ifdef BOOST_SERIALIZATION_SHARED_PTR_132_HPP + // list of loaded pointers. This is used to be sure that the pointers + // stay around long enough to be "matched" with other pointers loaded + // by the same archive. These are created with a "null_deleter" so that + // when this list is destroyed - the underlaying raw pointers are not + // destroyed. This has to be done because the pointers are also held by + // new system which is disjoint from this set. This is implemented + // by a change in load_construct_data below. It makes this file suitable + // only for loading pointers into a 1.33 or later boost system. + std::list<boost_132::shared_ptr<const void> > * m_pointers_132; +// #endif + + // returns pointer to object and an indicator whether this is a + // new entry (true) or a previous one (false) + BOOST_ARCHIVE_DECL(shared_ptr<void>) + get_od( + const void * od, + const boost::serialization::extended_type_info * true_type, + const boost::serialization::extended_type_info * this_type + ); + + BOOST_ARCHIVE_DECL(void) + append(const boost::shared_ptr<const void> &); + + template<class T> + struct non_polymorphic { + static const boost::serialization::extended_type_info * + get_object_identifier(T &){ + return & boost::serialization::singleton< + BOOST_DEDUCED_TYPENAME + boost::serialization::type_info_implementation< T >::type + >::get_const_instance(); + } + }; + template<class T> + struct polymorphic { + static const boost::serialization::extended_type_info * + get_object_identifier(T & t){ + return boost::serialization::singleton< + BOOST_DEDUCED_TYPENAME + boost::serialization::type_info_implementation< T >::type + >::get_const_instance().get_derived_extended_type_info(t); + } + }; +public: + template<class T> + void reset(shared_ptr< T > & s, T * t){ + if(NULL == t){ + s.reset(); + return; + } + const boost::serialization::extended_type_info * this_type + = & boost::serialization::type_info_implementation< T >::type + ::get_const_instance(); + + // get pointer to the most derived object. This is effectively + // the object identifern + typedef BOOST_DEDUCED_TYPENAME mpl::eval_if< + is_polymorphic< T >, + mpl::identity<polymorphic< T > >, + mpl::identity<non_polymorphic< T > > + >::type type; + + const boost::serialization::extended_type_info * true_type + = type::get_object_identifier(*t); + + // note:if this exception is thrown, be sure that derived pointern + // is either registered or exported. + if(NULL == true_type) + boost::serialization::throw_exception( + archive_exception( + archive_exception::unregistered_class, + this_type->get_debug_info() + ) + ); + shared_ptr<void> r = + get_od( + static_cast<const void *>(t), + true_type, + this_type + ); + if(!r){ + s.reset(t); + const void * od = void_downcast( + *true_type, + *this_type, + static_cast<const void *>(t) + ); + shared_ptr<const void> sp(s, od); + append(sp); + } + else{ + s = shared_ptr< T >( + r, + static_cast<T *>(r.get()) + ); + } + } + +// #ifdef BOOST_SERIALIZATION_SHARED_PTR_132_HPP + BOOST_ARCHIVE_DECL(void) + append(const boost_132::shared_ptr<const void> & t); +// #endif +public: + BOOST_ARCHIVE_DECL(BOOST_PP_EMPTY()) + shared_ptr_helper(); + BOOST_ARCHIVE_DECL(BOOST_PP_EMPTY()) + ~shared_ptr_helper(); +}; + +} // namespace detail +} // namespace archive +} // namespace boost + +#include <boost/archive/detail/abi_suffix.hpp> // pops abi_suffix.hpp pragmas + +#endif // BOOST_ARCHIVE_SHARED_PTR_HELPER_HPP |