210 lines
6.1 KiB
C++
210 lines
6.1 KiB
C++
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// basic_binary_iprimitive.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 <boost/assert.hpp>
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#include <cstddef> // size_t, NULL
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#include <cstring> // memcpy
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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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using ::memcpy;
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} // namespace std
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#endif
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#include <boost/detail/workaround.hpp> // fixup for RogueWave
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#include <boost/serialization/throw_exception.hpp>
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#include <boost/scoped_ptr.hpp>
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#include <boost/archive/archive_exception.hpp>
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#include <boost/archive/codecvt_null.hpp>
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#include <boost/archive/add_facet.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_iprimitive
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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_iprimitive<Archive, Elem, Tr>::init()
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{
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// Detect attempts to pass native binary archives across
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// incompatible platforms. This is not fool proof but its
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// better than nothing.
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unsigned char size;
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this->This()->load(size);
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if(sizeof(int) != size)
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boost::serialization::throw_exception(
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archive_exception(
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archive_exception::incompatible_native_format,
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"size of int"
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)
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);
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this->This()->load(size);
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if(sizeof(long) != size)
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boost::serialization::throw_exception(
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archive_exception(
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archive_exception::incompatible_native_format,
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"size of long"
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)
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);
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this->This()->load(size);
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if(sizeof(float) != size)
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boost::serialization::throw_exception(
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archive_exception(
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archive_exception::incompatible_native_format,
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"size of float"
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)
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);
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this->This()->load(size);
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if(sizeof(double) != size)
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boost::serialization::throw_exception(
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archive_exception(
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archive_exception::incompatible_native_format,
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"size of double"
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)
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);
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// for checking endian
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int i;
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this->This()->load(i);
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if(1 != i)
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boost::serialization::throw_exception(
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archive_exception(
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archive_exception::incompatible_native_format,
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"endian setting"
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)
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);
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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_iprimitive<Archive, Elem, Tr>::load(wchar_t * ws)
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{
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std::size_t l; // number of wchar_t !!!
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this->This()->load(l);
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load_binary(ws, l * sizeof(wchar_t) / sizeof(char));
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ws[l] = L'\0';
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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_iprimitive<Archive, Elem, Tr>::load(std::string & s)
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{
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std::size_t l;
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this->This()->load(l);
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// borland de-allocator fixup
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#if BOOST_WORKAROUND(_RWSTD_VER, BOOST_TESTED_AT(20101))
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if(NULL != s.data())
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#endif
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s.resize(l);
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// note breaking a rule here - could be a problem on some platform
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if(0 < l)
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load_binary(&(*s.begin()), 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_iprimitive<Archive, Elem, Tr>::load(char * s)
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{
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std::size_t l;
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this->This()->load(l);
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load_binary(s, l);
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s[l] = '\0';
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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_iprimitive<Archive, Elem, Tr>::load(std::wstring & ws)
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{
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std::size_t l;
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this->This()->load(l);
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// borland de-allocator fixup
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#if BOOST_WORKAROUND(_RWSTD_VER, BOOST_TESTED_AT(20101))
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if(NULL != ws.data())
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#endif
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ws.resize(l);
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// note breaking a rule here - is could be a problem on some platform
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load_binary(const_cast<wchar_t *>(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_iprimitive<Archive, Elem, Tr>::basic_binary_iprimitive(
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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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boost::archive::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 input_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 archive_locale 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_iprimitive<Archive, Elem, Tr>::~basic_binary_iprimitive(){
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// push back unread characters
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//destructor can't throw !
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try{
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static_cast<detail::input_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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