boost/archive/basic_binary_oprimitive.hpp
#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 obects. 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 prmitives
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 recieve 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