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135 lines
3.9 KiB
C++
135 lines
3.9 KiB
C++
#ifndef BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP
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#define BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// basic_binary_oprimitive.hpp
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// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
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// Use, modification and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org for updates, documentation, and revision history.
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// archives stored as native binary - this should be the fastest way
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// to archive the state of a group of obects. It makes no attempt to
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// convert to any canonical form.
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// IN GENERAL, ARCHIVES CREATED WITH THIS CLASS WILL NOT BE READABLE
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// ON PLATFORM APART FROM THE ONE THEY ARE CREATE ON
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#include <iosfwd>
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#include <cassert>
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#include <locale>
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#include <cstddef> // size_t
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#include <boost/config.hpp>
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#if defined(BOOST_NO_STDC_NAMESPACE)
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namespace std{
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using ::size_t;
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} // namespace std
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#endif
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#include <boost/cstdint.hpp>
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#include <boost/limits.hpp>
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#include <boost/io/ios_state.hpp>
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#include <boost/scoped_ptr.hpp>
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#include <boost/throw_exception.hpp>
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#include <boost/archive/archive_exception.hpp>
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namespace boost {
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namespace archive {
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/////////////////////////////////////////////////////////////////////////
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// class basic_binary_oprimitive - binary output of prmitives
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template<class Archive, class OStream>
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class basic_binary_oprimitive
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{
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#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
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friend class save_access;
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protected:
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#else
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public:
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#endif
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// return a pointer to the most derived class
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Archive * This(){
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return static_cast<Archive *>(this);
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}
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// native binary streams are handled as bytes
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OStream &os;
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boost::scoped_ptr<std::locale> archive_locale;
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io::basic_ios_locale_saver<
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BOOST_DEDUCED_TYPENAME OStream::char_type,
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BOOST_DEDUCED_TYPENAME OStream::traits_type
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> locale_saver;
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// default saving of primitives.
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template<class T>
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void save(const T & t)
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{
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save_binary(& t, sizeof(T));
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}
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void
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BOOST_DECL_ARCHIVE_OR_WARCHIVE
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save(const std::string &s);
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#ifndef BOOST_NO_STD_WSTRING
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void
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BOOST_DECL_ARCHIVE_OR_WARCHIVE
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save(const std::wstring &ws);
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#endif
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void
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BOOST_DECL_ARCHIVE_OR_WARCHIVE
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save(const char * t);
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void
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BOOST_DECL_ARCHIVE_OR_WARCHIVE
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save(const wchar_t * t);
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void
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BOOST_DECL_ARCHIVE_OR_WARCHIVE
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init();
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BOOST_DECL_ARCHIVE_OR_WARCHIVE
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basic_binary_oprimitive(OStream & os, bool no_codecvt);
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BOOST_DECL_ARCHIVE_OR_WARCHIVE
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~basic_binary_oprimitive();
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public:
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void save_binary(const void *address, std::size_t count);
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};
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template<class Archive, class OStream>
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inline void
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basic_binary_oprimitive<Archive, OStream>::save_binary(
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const void *address,
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std::size_t count
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){
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assert(
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static_cast<std::size_t>((std::numeric_limits<std::streamsize>::max)()) >= count
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);
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// note: if the following assertions fail
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// a likely cause is that the output stream is set to "text"
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// mode where by cr characters recieve special treatment.
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// be sure that the output stream is opened with ios::binary
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if(os.fail())
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boost::throw_exception(archive_exception(archive_exception::stream_error));
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// figure number of elements to output - round up
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count = ( count + sizeof(BOOST_DEDUCED_TYPENAME OStream::char_type) - 1)
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/ sizeof(BOOST_DEDUCED_TYPENAME OStream::char_type);
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os.write(
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static_cast<const BOOST_DEDUCED_TYPENAME OStream::char_type *>(address),
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count
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);
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assert(os.good());
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}
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} //namespace boost
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} //namespace archive
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#endif // BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP
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