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/Src/Dependencies/Boost/boost/archive/basic_binary_oprimitive.hpp

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  1#ifndef BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP
  2#define BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP
  3
  4// MS compatible compilers support #pragma once
  5#if defined(_MSC_VER) && (_MSC_VER >= 1020)
  6# pragma once
  7#endif
  8
  9/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 10// basic_binary_oprimitive.hpp
 11
 12// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
 13// Use, modification and distribution is subject to the Boost Software
 14// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 15// http://www.boost.org/LICENSE_1_0.txt)
 16
 17//  See http://www.boost.org for updates, documentation, and revision history.
 18
 19// archives stored as native binary - this should be the fastest way
 20// to archive the state of a group of obects.  It makes no attempt to
 21// convert to any canonical form.
 22
 23// IN GENERAL, ARCHIVES CREATED WITH THIS CLASS WILL NOT BE READABLE
 24// ON PLATFORM APART FROM THE ONE THEY ARE CREATE ON
 25
 26#include <iosfwd>
 27#include <boost/assert.hpp>
 28#include <locale>
 29#include <streambuf> // basic_streambuf
 30#include <string>
 31#include <cstddef> // size_t
 32
 33#include <boost/config.hpp>
 34#if defined(BOOST_NO_STDC_NAMESPACE)
 35namespace std{ 
 36    using ::size_t; 
 37} // namespace std
 38#endif
 39
 40#include <boost/cstdint.hpp>
 41#include <boost/integer.hpp>
 42#include <boost/integer_traits.hpp>
 43#include <boost/scoped_ptr.hpp>
 44#include <boost/serialization/throw_exception.hpp>
 45
 46#include <boost/archive/basic_streambuf_locale_saver.hpp>
 47#include <boost/archive/archive_exception.hpp>
 48#include <boost/serialization/is_bitwise_serializable.hpp>
 49#include <boost/mpl/placeholders.hpp>
 50#include <boost/serialization/array.hpp>
 51#include <boost/archive/detail/auto_link_archive.hpp>
 52#include <boost/archive/detail/abi_prefix.hpp> // must be the last header
 53
 54namespace boost {
 55namespace archive {
 56
 57/////////////////////////////////////////////////////////////////////////
 58// class basic_binary_oprimitive - binary output of prmitives
 59
 60template<class Archive, class Elem, class Tr>
 61class basic_binary_oprimitive
 62{
 63#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
 64    friend class save_access;
 65protected:
 66#else
 67public:
 68#endif
 69    std::basic_streambuf<Elem, Tr> & m_sb;
 70    // return a pointer to the most derived class
 71    Archive * This(){
 72        return static_cast<Archive *>(this);
 73    }
 74    #ifndef BOOST_NO_STD_LOCALE
 75    boost::scoped_ptr<std::locale> archive_locale;
 76    basic_streambuf_locale_saver<Elem, Tr> locale_saver;
 77    #endif
 78    // default saving of primitives.
 79    template<class T>
 80    void save(const T & t)
 81    {
 82        save_binary(& t, sizeof(T));
 83    }
 84
 85    /////////////////////////////////////////////////////////
 86    // fundamental types that need special treatment
 87    
 88    // trap usage of invalid uninitialized boolean which would
 89    // otherwise crash on load.
 90    void save(const bool t){
 91        BOOST_ASSERT(0 == static_cast<int>(t) || 1 == static_cast<int>(t));
 92        save_binary(& t, sizeof(t));
 93    }
 94    BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
 95    save(const std::string &s);
 96    #ifndef BOOST_NO_STD_WSTRING
 97    BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
 98    save(const std::wstring &ws);
 99    #endif
100    BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
101    save(const char * t);
102    BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
103    save(const wchar_t * t);
104
105    BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
106    init();
107    
108    BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY()) 
109    basic_binary_oprimitive(
110        std::basic_streambuf<Elem, Tr> & sb, 
111        bool no_codecvt
112    );
113    BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY()) 
114    ~basic_binary_oprimitive();
115public:
116
117    // we provide an optimized save for all fundamental types
118    // typedef serialization::is_bitwise_serializable<mpl::_1> 
119    // use_array_optimization;
120    // workaround without using mpl lambdas
121    struct use_array_optimization {
122        template <class T>  
123        #if defined(BOOST_NO_DEPENDENT_NESTED_DERIVATIONS)  
124            struct apply {  
125                typedef BOOST_DEDUCED_TYPENAME boost::serialization::is_bitwise_serializable< T >::type type;  
126            };
127        #else
128            struct apply : public boost::serialization::is_bitwise_serializable< T > {};  
129        #endif
130    };
131    
132
133    // the optimized save_array dispatches to save_binary 
134    template <class ValueType>
135    void save_array(boost::serialization::array<ValueType> const& a, unsigned int)
136    {
137      save_binary(a.address(),a.count()*sizeof(ValueType));
138    }
139
140    void save_binary(const void *address, std::size_t count);
141};
142
143template<class Archive, class Elem, class Tr>
144inline void 
145basic_binary_oprimitive<Archive, Elem, Tr>::save_binary(
146    const void *address, 
147    std::size_t count
148){
149    //BOOST_ASSERT(
150    //    static_cast<std::size_t>((std::numeric_limits<std::streamsize>::max)()) >= count
151    //);
152    // note: if the following assertions fail
153    // a likely cause is that the output stream is set to "text"
154    // mode where by cr characters recieve special treatment.
155    // be sure that the output stream is opened with ios::binary
156    //if(os.fail())
157    //    boost::serialization::throw_exception(
158    //        archive_exception(archive_exception::output_stream_error)
159    //    );
160    // figure number of elements to output - round up
161    count = ( count + sizeof(Elem) - 1) 
162        / sizeof(Elem);
163    BOOST_ASSERT(count <= std::size_t(boost::integer_traits<std::streamsize>::const_max));
164    std::streamsize scount = m_sb.sputn(
165        static_cast<const Elem *>(address), 
166        static_cast<std::streamsize>(count)
167    );
168    if(count != static_cast<std::size_t>(scount))
169        boost::serialization::throw_exception(
170            archive_exception(archive_exception::output_stream_error)
171        );
172    //os.write(
173    //    static_cast<const BOOST_DEDUCED_TYPENAME OStream::char_type *>(address), 
174    //    count
175    //);
176    //BOOST_ASSERT(os.good());
177}
178
179} //namespace boost 
180} //namespace archive 
181
182#include <boost/archive/detail/abi_suffix.hpp> // pop pragmas
183
184#endif // BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP