161 lines
4.7 KiB
C++
161 lines
4.7 KiB
C++
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// basic_binary_oprimitive.ipp:
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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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#include <ostream>
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#include <cstddef> // NULL
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#include <cstring>
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#include <boost/config.hpp>
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#if defined(BOOST_NO_STDC_NAMESPACE) && ! defined(__LIBCOMO__)
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namespace std{
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using ::strlen;
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} // namespace std
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#endif
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#ifndef BOOST_NO_CWCHAR
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#include <cwchar>
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#ifdef BOOST_NO_STDC_NAMESPACE
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namespace std{ using ::wcslen; }
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#endif
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#endif
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#include <boost/detail/workaround.hpp>
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#include <boost/archive/add_facet.hpp>
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#include <boost/archive/codecvt_null.hpp>
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namespace boost {
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namespace archive {
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//////////////////////////////////////////////////////////////////////
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// implementation of basic_binary_oprimitive
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template<class Archive, class Elem, class Tr>
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BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
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basic_binary_oprimitive<Archive, Elem, Tr>::init()
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{
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// record native sizes of fundamental types
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// this is to permit detection of attempts to pass
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// native binary archives accross incompatible machines.
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// This is not foolproof but its better than nothing.
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this->This()->save(static_cast<unsigned char>(sizeof(int)));
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this->This()->save(static_cast<unsigned char>(sizeof(long)));
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this->This()->save(static_cast<unsigned char>(sizeof(float)));
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this->This()->save(static_cast<unsigned char>(sizeof(double)));
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// for checking endianness
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this->This()->save(int(1));
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}
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template<class Archive, class Elem, class Tr>
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BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
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basic_binary_oprimitive<Archive, Elem, Tr>::save(const char * s)
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{
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std::size_t l = std::strlen(s);
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this->This()->save(l);
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save_binary(s, l);
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}
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template<class Archive, class Elem, class Tr>
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BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
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basic_binary_oprimitive<Archive, Elem, Tr>::save(const std::string &s)
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{
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std::size_t l = static_cast<std::size_t>(s.size());
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this->This()->save(l);
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save_binary(s.data(), l);
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}
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#ifndef BOOST_NO_CWCHAR
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template<class Archive, class Elem, class Tr>
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BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
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basic_binary_oprimitive<Archive, Elem, Tr>::save(const wchar_t * ws)
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{
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std::size_t l = std::wcslen(ws);
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this->This()->save(l);
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save_binary(ws, l * sizeof(wchar_t) / sizeof(char));
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}
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#endif
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#ifndef BOOST_NO_STD_WSTRING
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template<class Archive, class Elem, class Tr>
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BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
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basic_binary_oprimitive<Archive, Elem, Tr>::save(const std::wstring &ws)
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{
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std::size_t l = ws.size();
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this->This()->save(l);
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save_binary(ws.data(), l * sizeof(wchar_t) / sizeof(char));
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}
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#endif
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template<class Archive, class Elem, class Tr>
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BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
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basic_binary_oprimitive<Archive, Elem, Tr>::basic_binary_oprimitive(
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std::basic_streambuf<Elem, Tr> & sb,
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bool no_codecvt
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) :
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#ifndef BOOST_NO_STD_LOCALE
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m_sb(sb),
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archive_locale(NULL),
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locale_saver(m_sb)
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{
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if(! no_codecvt){
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archive_locale.reset(
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add_facet(
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std::locale::classic(),
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new codecvt_null<Elem>
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)
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);
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m_sb.pubimbue(* archive_locale);
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}
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}
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#else
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m_sb(sb)
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{}
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#endif
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// some libraries including stl and libcomo fail if the
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// buffer isn't flushed before the code_cvt facet is changed.
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// I think this is a bug. We explicity invoke sync to when
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// we're done with the streambuf to work around this problem.
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// Note that sync is a protected member of stream buff so we
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// have to invoke it through a contrived derived class.
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namespace detail {
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// note: use "using" to get past msvc bug
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using namespace std;
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template<class Elem, class Tr>
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class output_streambuf_access : public std::basic_streambuf<Elem, Tr> {
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public:
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virtual int sync(){
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#if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3206))
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return this->basic_streambuf::sync();
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#else
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return this->basic_streambuf<Elem, Tr>::sync();
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#endif
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}
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};
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} // detail
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// scoped_ptr requires that g be a complete type at time of
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// destruction so define destructor here rather than in the header
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template<class Archive, class Elem, class Tr>
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BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
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basic_binary_oprimitive<Archive, Elem, Tr>::~basic_binary_oprimitive(){
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// flush buffer
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//destructor can't throw
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try{
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static_cast<detail::output_streambuf_access<Elem, Tr> &>(m_sb).sync();
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}
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catch(...){
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}
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}
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} // namespace archive
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} // namespace boost
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