123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187 |
- #ifndef BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP
- #define BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP
- // MS compatible compilers support #pragma once
- #if defined(_MSC_VER)
- # pragma once
- #endif
- /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
- // basic_binary_oprimitive.hpp
- // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
- // 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.
- // archives stored as native binary - this should be the fastest way
- // to archive the state of a group of objects. It makes no attempt to
- // convert to any canonical form.
- // IN GENERAL, ARCHIVES CREATED WITH THIS CLASS WILL NOT BE READABLE
- // ON PLATFORM APART FROM THE ONE THEY ARE CREATE ON
- #include <iosfwd>
- #include <boost/assert.hpp>
- #include <locale>
- #include <streambuf> // basic_streambuf
- #include <string>
- #include <cstddef> // size_t
- #include <boost/config.hpp>
- #if defined(BOOST_NO_STDC_NAMESPACE)
- namespace std{
- using ::size_t;
- } // namespace std
- #endif
- #include <boost/cstdint.hpp>
- #include <boost/integer.hpp>
- #include <boost/integer_traits.hpp>
- #include <boost/scoped_ptr.hpp>
- #include <boost/serialization/throw_exception.hpp>
- #include <boost/serialization/is_bitwise_serializable.hpp>
- #include <boost/serialization/array_wrapper.hpp>
- #include <boost/archive/basic_streambuf_locale_saver.hpp>
- #include <boost/archive/codecvt_null.hpp>
- #include <boost/archive/archive_exception.hpp>
- #include <boost/archive/detail/auto_link_archive.hpp>
- #include <boost/archive/detail/abi_prefix.hpp> // must be the last header
- namespace boost {
- namespace archive {
- /////////////////////////////////////////////////////////////////////////
- // class basic_binary_oprimitive - binary output of primitives
- template<class Archive, class Elem, class Tr>
- class BOOST_SYMBOL_VISIBLE basic_binary_oprimitive {
- #ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
- friend class save_access;
- protected:
- #else
- public:
- #endif
- std::basic_streambuf<Elem, Tr> & m_sb;
- // return a pointer to the most derived class
- Archive * This(){
- return static_cast<Archive *>(this);
- }
- #ifndef BOOST_NO_STD_LOCALE
- // note order! - if you change this, libstd++ will fail!
- // a) create new locale with new codecvt facet
- // b) save current locale
- // c) change locale to new one
- // d) use stream buffer
- // e) change locale back to original
- // f) destroy new codecvt facet
- boost::archive::codecvt_null<Elem> codecvt_null_facet;
- basic_streambuf_locale_saver<Elem, Tr> locale_saver;
- std::locale archive_locale;
- #endif
- // default saving of primitives.
- template<class T>
- void save(const T & t)
- {
- save_binary(& t, sizeof(T));
- }
- /////////////////////////////////////////////////////////
- // fundamental types that need special treatment
- // trap usage of invalid uninitialized boolean which would
- // otherwise crash on load.
- void save(const bool t){
- BOOST_ASSERT(0 == static_cast<int>(t) || 1 == static_cast<int>(t));
- save_binary(& t, sizeof(t));
- }
- BOOST_ARCHIVE_OR_WARCHIVE_DECL void
- save(const std::string &s);
- #ifndef BOOST_NO_STD_WSTRING
- BOOST_ARCHIVE_OR_WARCHIVE_DECL void
- save(const std::wstring &ws);
- #endif
- BOOST_ARCHIVE_OR_WARCHIVE_DECL void
- save(const char * t);
- BOOST_ARCHIVE_OR_WARCHIVE_DECL void
- save(const wchar_t * t);
- BOOST_ARCHIVE_OR_WARCHIVE_DECL void
- init();
- BOOST_ARCHIVE_OR_WARCHIVE_DECL
- basic_binary_oprimitive(
- std::basic_streambuf<Elem, Tr> & sb,
- bool no_codecvt
- );
- BOOST_ARCHIVE_OR_WARCHIVE_DECL
- ~basic_binary_oprimitive();
- public:
- // we provide an optimized save for all fundamental types
- // typedef serialization::is_bitwise_serializable<mpl::_1>
- // use_array_optimization;
- // workaround without using mpl lambdas
- struct use_array_optimization {
- template <class T>
- #if defined(BOOST_NO_DEPENDENT_NESTED_DERIVATIONS)
- struct apply {
- typedef typename boost::serialization::is_bitwise_serializable< T >::type type;
- };
- #else
- struct apply : public boost::serialization::is_bitwise_serializable< T > {};
- #endif
- };
- // the optimized save_array dispatches to save_binary
- template <class ValueType>
- void save_array(boost::serialization::array_wrapper<ValueType> const& a, unsigned int)
- {
- save_binary(a.address(),a.count()*sizeof(ValueType));
- }
- void save_binary(const void *address, std::size_t count);
- };
- template<class Archive, class Elem, class Tr>
- inline void
- basic_binary_oprimitive<Archive, Elem, Tr>::save_binary(
- const void *address,
- std::size_t count
- ){
- // BOOST_ASSERT(count <= std::size_t(boost::integer_traits<std::streamsize>::const_max));
- // note: if the following assertions fail
- // a likely cause is that the output stream is set to "text"
- // mode where by cr characters receive special treatment.
- // be sure that the output stream is opened with ios::binary
- //if(os.fail())
- // boost::serialization::throw_exception(
- // archive_exception(archive_exception::output_stream_error)
- // );
- // figure number of elements to output - round up
- count = ( count + sizeof(Elem) - 1) / sizeof(Elem);
- std::streamsize scount = m_sb.sputn(
- static_cast<const Elem *>(address),
- static_cast<std::streamsize>(count)
- );
- if(count != static_cast<std::size_t>(scount))
- boost::serialization::throw_exception(
- archive_exception(archive_exception::output_stream_error)
- );
- //os.write(
- // static_cast<const typename OStream::char_type *>(address),
- // count
- //);
- //BOOST_ASSERT(os.good());
- }
- } //namespace boost
- } //namespace archive
- #include <boost/archive/detail/abi_suffix.hpp> // pop pragmas
- #endif // BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP
|