1 /*
2  * Copyright (C) 2019 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef _LIBUNWINDSTACK_MEMORY_OFFLINE_H
18 #define _LIBUNWINDSTACK_MEMORY_OFFLINE_H
19 
20 #include <stdint.h>
21 
22 #include <memory>
23 #include <string>
24 #include <vector>
25 
26 #include <unwindstack/Memory.h>
27 
28 #include "MemoryRange.h"
29 
30 namespace unwindstack {
31 
32 class MemoryOffline : public Memory {
33  public:
34   MemoryOffline() = default;
35   virtual ~MemoryOffline() = default;
36 
37   bool Init(const std::string& file, uint64_t offset);
38 
39   size_t Read(uint64_t addr, void* dst, size_t size) override;
40 
41  private:
42   std::unique_ptr<MemoryRange> memory_;
43 };
44 
45 class MemoryOfflineParts : public Memory {
46  public:
47   MemoryOfflineParts() = default;
48   virtual ~MemoryOfflineParts();
49 
Add(MemoryOffline * memory)50   void Add(MemoryOffline* memory) { memories_.push_back(memory); }
51 
52   size_t Read(uint64_t addr, void* dst, size_t size) override;
53 
54  private:
55   std::vector<MemoryOffline*> memories_;
56 };
57 
58 }  // namespace unwindstack
59 
60 #endif  // _LIBUNWINDSTACK_MEMORY_OFFLINE_H
61