aboutsummaryrefslogtreecommitdiff
path: root/src/processor/map_serializers.h
blob: 9c68e3f7e746ebd1484cefcdaac9bae12727e9a9 (plain)
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
// Copyright (c) 2010, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * 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.
//     * Neither the name of Google Inc. 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
// OWNER 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.
//
// map_serializers.h: defines templates for serializing std::map and its
// wrappers: AddressMap, RangeMap, and ContainedRangeMap.
//
// Author: Siyang Xie (lambxsy@google.com)


#ifndef PROCESSOR_MAP_SERIALIZERS_H__
#define PROCESSOR_MAP_SERIALIZERS_H__

#include <map>
#include <string>

#include "processor/simple_serializer.h"

#include "processor/address_map-inl.h"
#include "processor/range_map-inl.h"
#include "processor/contained_range_map-inl.h"

namespace google_breakpad {

// StdMapSerializer allocates memory and serializes an std::map instance into a
// chunk of memory data.
template<typename Key, typename Value>
class StdMapSerializer {
 public:
  // Calculate the memory size of serialized data.
  size_t SizeOf(const std::map<Key, Value> &m) const;

  // Writes the serialized data to memory with start address = dest,
  // and returns the "end" of data, i.e., return the address follow the final
  // byte of data.
  // NOTE: caller has to allocate enough memory before invoke Write() method.
  char* Write(const std::map<Key, Value> &m, char* dest) const;

  // Serializes a std::map object into a chunk of memory data with format
  // described in "StaticMap.h" comment.
  // Returns a pointer to the serialized data.  If size != NULL, *size is set
  // to the size of serialized data, i.e., SizeOf(m).
  char* Serialize(const std::map<Key, Value> &m, unsigned int *size) const;

 private:
  SimpleSerializer<Key> key_serializer_;
  SimpleSerializer<Value> value_serializer_;
};

// AddressMapSerializer allocates memory and serializes an AddressMap into a
// chunk of memory data.
template<typename Addr, typename Entry>
class AddressMapSerializer {
 public:
  // Calculate the memory size of serialized data.
  size_t SizeOf(const AddressMap<Addr, Entry> &m) const {
    return std_map_serializer_.SizeOf(m.map_);
  }

  // Write the serialized data to specified memory location.  Return the "end"
  // of data, i.e., return the address after the final byte of data.
  // NOTE: caller has to allocate enough memory before invoke Write() method.
  char* Write(const AddressMap<Addr, Entry> &m, char *dest) const {
    return std_map_serializer_.Write(m.map_, dest);
  }

  // Serializes an AddressMap object into a chunk of memory data.
  // Returns a pointer to the serialized data.  If size != NULL, *size is set
  // to the size of serialized data, i.e., SizeOf(m).
  char* Serialize(const AddressMap<Addr, Entry> &m, unsigned int *size) const {
    return std_map_serializer_.Serialize(m.map_, size);
  }

 private:
  // AddressMapSerializer is a simple wrapper of StdMapSerializer, just as
  // AddressMap is a simple wrapper of std::map.
  StdMapSerializer<Addr, Entry> std_map_serializer_;
};

// RangeMapSerializer allocates memory and serializes a RangeMap instance into a
// chunk of memory data.
template<typename Address, typename Entry>
class RangeMapSerializer {
 public:
  // Calculate the memory size of serialized data.
  size_t SizeOf(const RangeMap<Address, Entry> &m) const;

  // Write the serialized data to specified memory location.  Return the "end"
  // of data, i.e., return the address after the final byte of data.
  // NOTE: caller has to allocate enough memory before invoke Write() method.
  char* Write(const RangeMap<Address, Entry> &m, char* dest) const;

  // Serializes a RangeMap object into a chunk of memory data.
  // Returns a pointer to the serialized data.  If size != NULL, *size is set
  // to the size of serialized data, i.e., SizeOf(m).
  char* Serialize(const RangeMap<Address, Entry> &m, unsigned int *size) const;

 private:
  // Convenient type name for Range.
  typedef typename RangeMap<Address, Entry>::Range Range;

  // Serializer for RangeMap's key and Range::base_.
  SimpleSerializer<Address> address_serializer_;
  // Serializer for RangeMap::Range::entry_.
  SimpleSerializer<Entry> entry_serializer_;
};

// ContainedRangeMapSerializer allocates memory and serializes a
// ContainedRangeMap instance into a chunk of memory data.
template<class AddrType, class EntryType>
class ContainedRangeMapSerializer {
 public:
  // Calculate the memory size of serialized data.
  size_t SizeOf(const ContainedRangeMap<AddrType, EntryType> *m) const;

  // Write the serialized data to specified memory location.  Return the "end"
  // of data, i.e., return the address after the final byte of data.
  // NOTE: caller has to allocate enough memory before invoke Write() method.
  char* Write(const ContainedRangeMap<AddrType, EntryType> *m,
              char* dest) const;

  // Serializes a ContainedRangeMap object into a chunk of memory data.
  // Returns a pointer to the serialized data.  If size != NULL, *size is set
  // to the size of serialized data, i.e., SizeOf(m).
  char* Serialize(const ContainedRangeMap<AddrType, EntryType> *m,
                  unsigned int *size) const;

 private:
  // Convenient type name for the underlying map type.
  typedef std::map<AddrType, ContainedRangeMap<AddrType, EntryType>*> Map;

  // Serializer for addresses and entries stored in ContainedRangeMap.
  SimpleSerializer<AddrType> addr_serializer_;
  SimpleSerializer<EntryType> entry_serializer_;
};

}  // namespace google_breakpad

#endif  // PROCESSOR_MAP_SERIALIZERS_H__