Chris@102: /* Copyright 2006-2014 Joaquin M Lopez Munoz.
Chris@102:  * Distributed under the Boost Software License, Version 1.0.
Chris@102:  * (See accompanying file LICENSE_1_0.txt or copy at
Chris@102:  * http://www.boost.org/LICENSE_1_0.txt)
Chris@102:  *
Chris@102:  * See http://www.boost.org/libs/flyweight for library home page.
Chris@102:  */
Chris@102: 
Chris@102: #ifndef BOOST_FLYWEIGHT_DETAIL_ARCHIVE_CONSTRUCTED_HPP
Chris@102: #define BOOST_FLYWEIGHT_DETAIL_ARCHIVE_CONSTRUCTED_HPP
Chris@102: 
Chris@102: #if defined(_MSC_VER)&&(_MSC_VER>=1200)
Chris@102: #pragma once
Chris@102: #endif
Chris@102: 
Chris@102: #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
Chris@102: #include <boost/detail/no_exceptions_support.hpp>
Chris@102: #include <boost/noncopyable.hpp>
Chris@102: #include <boost/serialization/serialization.hpp>
Chris@102: #include <boost/type_traits/aligned_storage.hpp>
Chris@102: #include <boost/type_traits/alignment_of.hpp> 
Chris@102: 
Chris@102: namespace boost{
Chris@102: 
Chris@102: namespace flyweights{
Chris@102: 
Chris@102: namespace detail{
Chris@102: 
Chris@102: /* constructs a stack-based object from a serialization archive */
Chris@102: 
Chris@102: template<typename T>
Chris@102: struct archive_constructed:private noncopyable
Chris@102: {
Chris@102:   template<class Archive>
Chris@102:   archive_constructed(Archive& ar,const unsigned int version)
Chris@102:   {
Chris@102:     serialization::load_construct_data_adl(ar,&get(),version);
Chris@102:     BOOST_TRY{
Chris@102:       ar>>get();
Chris@102:     }
Chris@102:     BOOST_CATCH(...){
Chris@102:       (&get())->~T();
Chris@102:       BOOST_RETHROW;
Chris@102:     }
Chris@102:     BOOST_CATCH_END
Chris@102:   }
Chris@102: 
Chris@102:   template<class Archive>
Chris@102:   archive_constructed(const char* name,Archive& ar,const unsigned int version)
Chris@102:   {
Chris@102:     serialization::load_construct_data_adl(ar,&get(),version);
Chris@102:     BOOST_TRY{
Chris@102:       ar>>serialization::make_nvp(name,get());
Chris@102:     }
Chris@102:     BOOST_CATCH(...){
Chris@102:       (&get())->~T();
Chris@102:       BOOST_RETHROW;
Chris@102:     }
Chris@102:     BOOST_CATCH_END
Chris@102:   }
Chris@102: 
Chris@102:   ~archive_constructed()
Chris@102:   {
Chris@102:     (&get())->~T();
Chris@102:   }
Chris@102: 
Chris@102:   T& get(){return *static_cast<T*>(static_cast<void*>(&space));}
Chris@102: 
Chris@102: private:
Chris@102:   typename aligned_storage<sizeof(T),alignment_of<T>::value>::type space;
Chris@102: };
Chris@102: 
Chris@102: } /* namespace flyweights::detail */
Chris@102: 
Chris@102: } /* namespace flyweights */
Chris@102: 
Chris@102: } /* namespace boost */
Chris@102: 
Chris@102: #endif