aboutsummaryrefslogtreecommitdiff
path: root/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
blob: 2623eee244e394fed3fa34d835e441bc2c5adfdd (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
// Copyright (c) 2014, The Monero Project
// 
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
// 
// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
// 
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//    of conditions and the following disclaimer in the documentation and/or other
//    materials provided with the distribution.
// 
// 3. Neither the name of the copyright holder nor the names of its contributors may be
//    used to endorse or promote products derived from this software without specific
//    prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// 
// Parts of this file are originally copyright (c) 2006-2013, Andrey N. Sabelnikov

#pragma once

namespace epee
{
  namespace serialization
  {

    //-------------------------------------------------------------------------------------------------------------------
    template<class t_type, class t_storage>
    static bool serialize_t_val(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      return stg.set_value(pname, d, hparent_section);
    }
    //-------------------------------------------------------------------------------------------------------------------
    template<class t_type, class t_storage>
    static bool unserialize_t_val(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      return stg.get_value(pname, d, hparent_section);
    } 
    //-------------------------------------------------------------------------------------------------------------------
    template<class t_type, class t_storage>
    static bool serialize_t_val_as_blob(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {      
      std::string blob((const char *)&d, sizeof(d));
      return stg.set_value(pname, blob, hparent_section);
    }
    //-------------------------------------------------------------------------------------------------------------------
    template<class t_type, class t_storage>
    static bool unserialize_t_val_as_blob(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      std::string blob;
      if(!stg.get_value(pname, blob, hparent_section))
        return false;
      CHECK_AND_ASSERT_MES(blob.size() == sizeof(d), false, "unserialize_t_val_as_blob: size of " << typeid(t_type).name() << " = " << sizeof(t_type) << ", but stored blod size = " << blob.size() << ", value name = " << pname);
      d = *(const t_type*)blob.data();
      return true;
    } 
    //-------------------------------------------------------------------------------------------------------------------
    template<class serializible_type, class t_storage>
    static bool serialize_t_obj(const serializible_type& obj, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      typename t_storage::hsection	hchild_section = stg.open_section(pname, hparent_section, true);
      CHECK_AND_ASSERT_MES(hchild_section, false, "serialize_t_obj: failed to open/create section " << pname);
      return obj.store(stg, hchild_section);
    }
    //-------------------------------------------------------------------------------------------------------------------
    template<class serializible_type, class t_storage>
    static bool unserialize_t_obj(serializible_type& obj, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      typename t_storage::hsection	hchild_section = stg.open_section(pname, hparent_section, true);
      if(!hchild_section) return false;
      return obj._load(stg, hchild_section);
    }
    //-------------------------------------------------------------------------------------------------------------------
    template<class serializible_type, class t_storage>
    static bool serialize_t_obj(enableable<serializible_type>& obj, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      if(!obj.enabled)
        return true;
      return serialize_t_obj(obj.v, stg, hparent_section, pname);
    }
    //-------------------------------------------------------------------------------------------------------------------
    template<class serializible_type, class t_storage>
    static bool unserialize_t_obj(enableable<serializible_type>& obj, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      obj.enabled = false;
      typename t_storage::hsection	hchild_section = stg.open_section(pname, hparent_section, true);
      if(!hchild_section) return false;
      obj.enabled = true;
      return obj.v._load(stg, hchild_section);
    }
    //-------------------------------------------------------------------------------------------------------------------
    template<class stl_container, class t_storage>
    static bool serialize_stl_container_t_val  (const stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      if(!container.size()) return true;
      typename stl_container::const_iterator it = container.begin();
      typename t_storage::harray hval_array = stg.insert_first_value(pname, *it, hparent_section);
      CHECK_AND_ASSERT_MES(hval_array, false, "failed to insert first value to storage");
      it++;
      for(;it!= container.end();it++)
        stg.insert_next_value(hval_array, *it);

      return true;
    }
    //--------------------------------------------------------------------------------------------------------------------
    template<class stl_container, class t_storage>
    static bool unserialize_stl_container_t_val(stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      container.clear();
      typename stl_container::value_type exchange_val;
      typename t_storage::harray hval_array = stg.get_first_value(pname, exchange_val, hparent_section);
      if(!hval_array) return false;
      container.push_back(std::move(exchange_val));
      while(stg.get_next_value(hval_array, exchange_val))
        container.push_back(std::move(exchange_val));
      return true;
    }//--------------------------------------------------------------------------------------------------------------------
    template<class stl_container, class t_storage>
    static bool serialize_stl_container_pod_val_as_blob(const stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      if(!container.size()) return true;
      typename stl_container::const_iterator it = container.begin();
      std::string mb;
      mb.resize(sizeof(typename stl_container::value_type)*container.size());
      typename stl_container::value_type* p_elem = (typename stl_container::value_type*)mb.data();
      BOOST_FOREACH(const typename stl_container::value_type& v, container)
      {
        *p_elem = v;
        p_elem++;
      }
      return stg.set_value(pname, mb, hparent_section);
    }
    //--------------------------------------------------------------------------------------------------------------------
    template<class stl_container, class t_storage>
    static bool unserialize_stl_container_pod_val_as_blob(stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      container.clear();
      std::string buff;
      bool res = stg.get_value(pname, buff, hparent_section);
      if(res)
      {
        size_t loaded_size = buff.size();
        typename stl_container::value_type* pelem =  (typename stl_container::value_type*)buff.data();
        CHECK_AND_ASSERT_MES(!(loaded_size%sizeof(typename stl_container::value_type)), 
          false, 
          "size in blob " << loaded_size << " not have not zero modulo for sizeof(value_type) = " << sizeof(typename stl_container::value_type));
        size_t count = (loaded_size/sizeof(typename stl_container::value_type));
        for(size_t i = 0; i < count; i++)
          container.push_back(*(pelem++));
      }
      return res;
    }
    //--------------------------------------------------------------------------------------------------------------------
    template<class stl_container, class t_storage>
    static bool serialize_stl_container_t_obj  (const stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      bool res = false;
      if(!container.size()) return true;
      typename stl_container::const_iterator it = container.begin();
      typename t_storage::hsection hchild_section = nullptr;
      typename t_storage::harray hsec_array = stg.insert_first_section(pname, hchild_section, hparent_section);
      CHECK_AND_ASSERT_MES(hsec_array && hchild_section, false, "failed to insert first section with section name " << pname);
      res = it->store(stg, hchild_section);
      it++;
      for(;it!= container.end();it++)
      {
        stg.insert_next_section(hsec_array, hchild_section);
        res |= it->store(stg, hchild_section);
      }
      return res;
    }
    //--------------------------------------------------------------------------------------------------------------------
    template<class stl_container, class t_storage>
    static bool unserialize_stl_container_t_obj(stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      bool res = false;
      container.clear();
      typename stl_container::value_type val = typename stl_container::value_type();
      typename t_storage::hsection hchild_section = nullptr;
      typename t_storage::harray hsec_array = stg.get_first_section(pname, hchild_section, hparent_section);
      if(!hsec_array || !hchild_section) return false;
      res = val._load(stg, hchild_section);
      container.push_back(val);
      while(stg.get_next_section(hsec_array, hchild_section))
      {
        typename stl_container::value_type val_l = typename stl_container::value_type();
        res |= val_l._load(stg, hchild_section);
        container.push_back(std::move(val_l));
      }
      return res;
    }
    //--------------------------------------------------------------------------------------------------------------------
    template<bool>
    struct kv_serialization_overloads_impl_is_base_serializable_types;

    template<>
    struct kv_serialization_overloads_impl_is_base_serializable_types<true>
    {
      template<class t_type, class t_storage>
      static bool kv_serialize(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return stg.set_value(pname, d, hparent_section);
      }
      //-------------------------------------------------------------------------------------------------------------------
      template<class t_type, class t_storage>
      static bool kv_unserialize(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return stg.get_value(pname, d, hparent_section);
      } 
      //-------------------------------------------------------------------------------------------------------------------
      template<class t_type, class t_storage>
      static bool kv_serialize(const std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return serialize_stl_container_t_val(d, stg, hparent_section, pname);
      }
      //-------------------------------------------------------------------------------------------------------------------
      template<class t_type, class t_storage>
      static bool kv_unserialize(std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return unserialize_stl_container_t_val(d, stg, hparent_section, pname);
      } 
      //-------------------------------------------------------------------------------------------------------------------
      template<class t_type, class t_storage>
      static bool kv_serialize(const std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return serialize_stl_container_t_val(d, stg, hparent_section, pname);
      }
      //-------------------------------------------------------------------------------------------------------------------
      template<class t_type, class t_storage>
      static bool kv_unserialize(std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return unserialize_stl_container_t_val(d, stg, hparent_section, pname);
      } 
      //-------------------------------------------------------------------------------------------------------------------
    };
    template<>
    struct kv_serialization_overloads_impl_is_base_serializable_types<false>
    {
      template<class t_type, class t_storage>
      static bool kv_serialize(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return serialize_t_obj(d, stg, hparent_section, pname);
      }
      //-------------------------------------------------------------------------------------------------------------------
      template<class t_type, class t_storage>
      static bool kv_unserialize(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return unserialize_t_obj(d, stg, hparent_section, pname);
      } 

      //-------------------------------------------------------------------------------------------------------------------
      template<class t_type, class t_storage>
      static bool kv_serialize(const std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return serialize_stl_container_t_obj(d, stg, hparent_section, pname);
      }
      //-------------------------------------------------------------------------------------------------------------------
      template<class t_type, class t_storage>
      static bool kv_unserialize(std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return unserialize_stl_container_t_obj(d, stg, hparent_section, pname);
      } 
      //-------------------------------------------------------------------------------------------------------------------
      template<class t_type, class t_storage>
      static bool kv_serialize(const std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return serialize_stl_container_t_obj(d, stg, hparent_section, pname);
      }
      //-------------------------------------------------------------------------------------------------------------------
      template<class t_type, class t_storage>
      static bool kv_unserialize(std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return unserialize_stl_container_t_obj(d, stg, hparent_section, pname);
      } 
    };
    template<class t_storage>
    struct base_serializable_types: public boost::mpl::vector<uint64_t, uint32_t, uint16_t, uint8_t, int64_t, int32_t, int16_t, int8_t, double, bool, std::string, typename t_storage::meta_entry>::type
    {};
    //-------------------------------------------------------------------------------------------------------------------
    template<bool> struct selector;
    template<>
    struct selector<true>
    {
      template<class t_type, class t_storage>
      static bool serialize(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return kv_serialize(d, stg, hparent_section, pname);
      }

      template<class t_type, class t_storage>
      static bool serialize_stl_container_pod_val_as_blob(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return epee::serialization::serialize_stl_container_pod_val_as_blob(d, stg, hparent_section, pname);
      }

      template<class t_type, class t_storage>
      static bool serialize_t_val_as_blob(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return epee::serialization::serialize_t_val_as_blob(d, stg, hparent_section, pname);
      }


    };
    template<>
    struct selector<false>
    {
      template<class t_type, class t_storage>
      static bool serialize(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return kv_unserialize(d, stg, hparent_section, pname);
      }
      template<class t_type, class t_storage>
      static bool serialize_stl_container_pod_val_as_blob(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return epee::serialization::unserialize_stl_container_pod_val_as_blob(d, stg, hparent_section, pname);
      }

      template<class t_type, class t_storage>
      static bool serialize_t_val_as_blob(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
      {
        return epee::serialization::unserialize_t_val_as_blob(d, stg, hparent_section, pname);
      }
    };

    template<class t_type, class t_storage>
    bool kv_serialize(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_serialize(d, stg, hparent_section, pname);
    }
    //-------------------------------------------------------------------------------------------------------------------
    template<class t_type, class t_storage>
    bool kv_unserialize(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_unserialize(d, stg, hparent_section, pname);
    } 
    //-------------------------------------------------------------------------------------------------------------------
    template<class t_type, class t_storage>
    bool kv_serialize(const std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_serialize(d, stg, hparent_section, pname);
    }
    //-------------------------------------------------------------------------------------------------------------------
    template<class t_type, class t_storage>
    bool kv_unserialize(std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_unserialize(d, stg, hparent_section, pname);
    } 
    //-------------------------------------------------------------------------------------------------------------------
    template<class t_type, class t_storage>
    bool kv_serialize(const std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_serialize(d, stg, hparent_section, pname);
    }
    //-------------------------------------------------------------------------------------------------------------------
    template<class t_type, class t_storage>
    bool kv_unserialize(std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
    {
      return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types<t_storage>, typename std::remove_const<t_type>::type>::value>::kv_unserialize(d, stg, hparent_section, pname);
    } 
  }
}