ceph/src/boost/libs/serialization/test/test_p_helper.cpp

   1 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
   2 // test_polymorphic.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 // should pass compilation and execution
  10
  11 #include <cstddef> // NULL
  12 #include <cstdio> // remove
  13 #include <fstream>
  14
  15 #include <boost/config.hpp>
  16 #if defined(BOOST_NO_STDC_NAMESPACE)
  17 namespace std{
  18     using ::remove;
  19 }
  20 #endif
  21
  22 // the following is to ensure that when one of the libraries changes
  23 // BJAM rebuilds and relinks the test.
  24 /*
  25 #include "polymorphic_text_archive.hpp"
  26 #include "polymorphic_text_warchive.hpp"
  27 #include "polymorphic_binary_archive.hpp"
  28 #include "polymorphic_xml_archive.hpp"
  29 #include "polymorphic_xml_warchive.hpp"
  30 */
  31
  32 #include <string>
  33 #include <vector>
  34
  35 #include "test_tools.hpp"
  36 #include <boost/lexical_cast.hpp>
  37 #include <boost/serialization/split_free.hpp>
  38 #include <boost/serialization/vector.hpp>
  39 #include <boost/serialization/nvp.hpp>
  40 // this test uses a special string (my_string) whose contents are shared
  41 // and hence saved in the archive only once.  We need a helper in order
  42 // to convert my_string into a serializable type
  43
  44 class my_string:public std::string
  45 {
  46     typedef std::string super;
  47
  48 public:
  49     my_string(){}
  50     my_string(const super & str): super(str){}
  51     my_string & operator=(const super& rhs) {
  52       super::operator=(rhs);
  53       return *this;
  54     }
  55 };
  56
  57 struct my_string_helper
  58 {
  59   typedef std::vector<my_string> table;
  60   table m_t;
  61 };
  62
  63 BOOST_SERIALIZATION_SPLIT_FREE(my_string)
  64
  65 namespace boost {
  66 namespace serialization {
  67
  68 template<class Archive>
  69 void save(Archive & ar, const my_string & str, const unsigned int /* version */)
  70 {
  71     void (* const idx)(Archive &, const my_string &, const unsigned int) = & save;
  72     void * const id = reinterpret_cast<void * const>(idx);
  73     my_string_helper & msh = ar.template get_helper<my_string_helper>(id);
  74
  75     my_string_helper::table t = msh.m_t;
  76     my_string_helper::table::iterator it = std::find(t.begin(), t.end(), str);
  77     if(it == t.end()){
  78         my_string_helper::table::size_type s = t.size();
  79         ar << make_nvp("index", s);
  80         t.push_back(str);
  81         ar << make_nvp("string", static_cast<const std::string &>(str));
  82     }
  83     else{
  84         my_string_helper::table::size_type s = it - t.begin();
  85         ar << make_nvp("index", s);
  86     }
  87 }
  88
  89 template<class Archive>
  90 void load(Archive & ar, my_string & str, const unsigned int /* version */)
  91 {
  92     void (* const idx)(Archive &, my_string &, const unsigned int) = & load;
  93     void * const id = reinterpret_cast<void * const>(idx);
  94     my_string_helper & msh = ar.template get_helper<my_string_helper>(id);
  95
  96     my_string_helper::table t = msh.m_t;
  97
  98     my_string_helper::table::size_type s;
  99     ar >> make_nvp("index", s);
 100     t.reserve(s);
 101     if(s >= t.size()){
 102         std::string tmp;
 103         ar >> make_nvp("string", tmp);
 104         str = tmp;
 105         t.push_back(str);
 106     }
 107     else{
 108         str = t[s];
 109     }
 110 }
 111
 112 } // namespace serialization
 113 } // namespace boost
 114 #include <boost/archive/polymorphic_oarchive.hpp>
 115 #include <boost/archive/polymorphic_iarchive.hpp>
 116
 117 int test_main(int /* argc */, char * /* argv */ [])
 118 {
 119     const char * testfile = boost::archive::tmpnam(NULL);
 120     BOOST_REQUIRE(NULL != testfile);
 121
 122     std::vector<my_string> v1;
 123     for(int i=0; i<1000; ++i){
 124         v1.push_back(my_string(boost::lexical_cast<std::string>(i % 100)));
 125     }
 126
 127     // test using using polymorphic implementation.
 128     {
 129         test_ostream os(testfile, TEST_STREAM_FLAGS);
 130         test_oarchive oa_implementation(os, TEST_ARCHIVE_FLAGS);
 131         oa_implementation << boost::serialization::make_nvp("vector", v1);
 132     }
 133     {
 134         std::vector<my_string> v2;
 135         test_istream is(testfile, TEST_STREAM_FLAGS);
 136         test_iarchive  ia_implementation(is, TEST_ARCHIVE_FLAGS);
 137         ia_implementation >> boost::serialization::make_nvp("vector", v2);
 138         BOOST_CHECK(v1 == v2);
 139     }
 140     std::remove(testfile);
 141
 142     // test using using polymorphic interface.
 143     {
 144         test_ostream os(testfile, TEST_STREAM_FLAGS);
 145         test_oarchive oa_implementation(os, TEST_ARCHIVE_FLAGS);
 146         boost::archive::polymorphic_oarchive & oa_interface = oa_implementation;
 147         oa_interface << boost::serialization::make_nvp("vector", v1);
 148     }
 149     {
 150         std::vector<my_string> v2;
 151         test_istream is(testfile, TEST_STREAM_FLAGS);
 152         test_iarchive  ia_implementation(is, TEST_ARCHIVE_FLAGS);
 153         boost::archive::polymorphic_iarchive & ia_interface = ia_implementation;
 154         ia_interface >> boost::serialization::make_nvp("vector", v2);
 155         BOOST_CHECK(v1 == v2);
 156     }
 157     std::remove(testfile);
 158     std::remove(testfile);
 159     return EXIT_SUCCESS;
 160 }