ceph/src/boost/libs/serialization/src/basic_serializer_map.cpp

   1 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
   2 // serializer_map.cpp:
   3
   4 // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
   5 // Use, modification and distribution is subject to the Boost Software
   6 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt)
   8
   9 //  See http://www.boost.org for updates, documentation, and revision history.
  10
  11 #if (defined _MSC_VER) && (_MSC_VER == 1200)
  12 #  pragma warning (disable : 4786) // too long name, harmless warning
  13 #endif
  14
  15 #include <set>
  16 #include <utility>
  17
  18 #define BOOST_ARCHIVE_SOURCE
  19 // include this to prevent linker errors when the
  20 // same modules are marked export and import.
  21 #define BOOST_SERIALIZATION_SOURCE
  22 #include <boost/serialization/config.hpp>
  23 #include <boost/serialization/throw_exception.hpp>
  24
  25 #include <boost/archive/archive_exception.hpp>
  26 #include <boost/archive/detail/basic_serializer.hpp>
  27 #include <boost/archive/detail/basic_serializer_map.hpp>
  28
  29 namespace boost {
  30     namespace serialization {
  31         class extended_type_info;
  32     }
  33 namespace archive {
  34 namespace detail {
  35
  36 bool
  37 basic_serializer_map::type_info_pointer_compare::operator()(
  38     const basic_serializer * lhs, const basic_serializer * rhs
  39 ) const {
  40     return *lhs < *rhs;
  41 }
  42
  43 BOOST_ARCHIVE_DECL bool
  44 basic_serializer_map::insert(const basic_serializer * bs){
  45     // attempt to insert serializer into it's map
  46     // the following is commented out - rather than being just
  47     // deleted as a reminder not to try this.
  48
  49     // const std::pair<map_type::iterator, bool> result =
  50         m_map.insert(bs);
  51
  52     // At first it seemed like a good idea.  It enforced the
  53     // idea that a type be exported from at most one code module
  54     // (DLL or mainline).  This would enforce a "one definition rule"
  55     // across code modules. This seems a good idea to me.
  56     // But it seems that it's just too hard for many users to implement.
  57
  58     // Ideally, I would like to make this exception a warning -
  59     // but there isn't anyway to do that.
  60
  61     // if this fails, it's because it's been instantiated
  62     // in multiple modules - DLLS - a recipe for problems.
  63     // So trap this here
  64     // if(!result.second){
  65     //     boost::serialization::throw_exception(
  66     //         archive_exception(
  67     //             archive_exception::multiple_code_instantiation,
  68     //             bs->get_debug_info()
  69     //         )
  70     //     );
  71     // }
  72     return true;
  73 }
  74
  75 BOOST_ARCHIVE_DECL void
  76 basic_serializer_map::erase(const basic_serializer * bs){
  77     map_type::iterator it = m_map.begin();
  78     map_type::iterator it_end = m_map.end();
  79
  80     while(it != it_end){
  81         // note item 9 from Effective STL !!! it++
  82         if(*it == bs)
  83             m_map.erase(it++);
  84         else
  85             it++;
  86     }
  87     // note: we can't do this since some of the eti records
  88     // we're pointing to might be expired and the comparison
  89     // won't work.  Leave this as a reminder not to "optimize" this.
  90     //it = m_map.find(bs);
  91     //assert(it != m_map.end());
  92     //if(*it == bs)
  93     //    m_map.erase(it);
  94 }
  95 BOOST_ARCHIVE_DECL const basic_serializer *
  96 basic_serializer_map::find(
  97     const boost::serialization::extended_type_info & eti
  98 ) const {
  99     const basic_serializer_arg bs(eti);
 100     map_type::const_iterator it;
 101     it = m_map.find(& bs);
 102     if(it == m_map.end()){
 103         BOOST_ASSERT(false);
 104         return 0;
 105     }
 106     return *it;
 107 }
 108
 109 } // namespace detail
 110 } // namespace archive
 111 } // namespace boost
 112