130 lines
4.1 KiB
C++
130 lines
4.1 KiB
C++
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// basic_binary_iarchive.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 <string>
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#include <boost/assert.hpp>
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#include <algorithm>
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#include <cstring>
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#include <boost/config.hpp> // for BOOST_DEDUCED_TYPENAME
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#if defined(BOOST_NO_STDC_NAMESPACE)
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namespace std{
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using ::memcpy;
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using ::strlen;
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using ::size_t;
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}
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#endif
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#include <boost/detail/workaround.hpp>
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#include <boost/detail/endian.hpp>
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#include <boost/archive/basic_binary_iarchive.hpp>
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namespace boost {
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namespace archive {
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// implementation of binary_binary_archive
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template<class Archive>
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BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
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basic_binary_iarchive<Archive>::load_override(class_name_type & t, int){
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std::string cn;
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cn.reserve(BOOST_SERIALIZATION_MAX_KEY_SIZE);
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load_override(cn, 0);
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if(cn.size() > (BOOST_SERIALIZATION_MAX_KEY_SIZE - 1))
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boost::serialization::throw_exception(
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archive_exception(archive_exception::invalid_class_name)
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);
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std::memcpy(t, cn.data(), cn.size());
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// borland tweak
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t.t[cn.size()] = '\0';
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}
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template<class Archive>
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BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
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basic_binary_iarchive<Archive>::init(){
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// read signature in an archive version independent manner
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std::string file_signature;
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try {
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std::size_t l;
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this->This()->load(l);
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if(l == std::strlen(BOOST_ARCHIVE_SIGNATURE())) {
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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 != file_signature.data())
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#endif
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file_signature.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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this->This()->load_binary(&(*file_signature.begin()), l);
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}
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}
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catch(archive_exception const &) { // catch stream_error archive exceptions
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// will cause invalid_signature archive exception to be thrown below
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file_signature = "";
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}
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if(file_signature != BOOST_ARCHIVE_SIGNATURE())
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boost::serialization::throw_exception(
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archive_exception(archive_exception::invalid_signature)
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);
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// make sure the version of the reading archive library can
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// support the format of the archive being read
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library_version_type input_library_version;
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//* this->This() >> input_library_version;
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{
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int v = 0;
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v = this->This()->m_sb.sbumpc();
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#if defined(BOOST_LITTLE_ENDIAN)
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if(v < 6){
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;
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}
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else
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if(v < 7){
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// version 6 - next byte should be zero
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this->This()->m_sb.sbumpc();
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}
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else
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if(v < 8){
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int x1;
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// version 7 = might be followed by zero or some other byte
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x1 = this->This()->m_sb.sgetc();
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// it's =a zero, push it back
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if(0 == x1)
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this->This()->m_sb.sbumpc();
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}
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else{
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// version 8+ followed by a zero
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this->This()->m_sb.sbumpc();
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}
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#elif defined(BOOST_BIG_ENDIAN)
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if(v == 0)
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v = this->This()->m_sb.sbumpc();
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#endif
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input_library_version = static_cast<library_version_type>(v);
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}
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#if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3205))
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this->set_library_version(input_library_version);
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#else
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#if ! BOOST_WORKAROUND(BOOST_MSVC, <= 1200)
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detail::
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#endif
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basic_iarchive::set_library_version(input_library_version);
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#endif
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if(BOOST_ARCHIVE_VERSION() < input_library_version)
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boost::serialization::throw_exception(
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archive_exception(archive_exception::unsupported_version)
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);
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}
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} // namespace archive
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} // namespace boost
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