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_REMOTE_H
18 #define _LIBUNWINDSTACK_MEMORY_REMOTE_H
19 
20 #include <stdint.h>
21 #include <sys/types.h>
22 
23 #include <atomic>
24 
25 #include <unwindstack/Memory.h>
26 
27 namespace unwindstack {
28 
29 class MemoryRemote : public Memory {
30  public:
MemoryRemote(pid_t pid)31   MemoryRemote(pid_t pid) : pid_(pid), read_redirect_func_(0) {}
32   virtual ~MemoryRemote() = default;
33 
34   size_t Read(uint64_t addr, void* dst, size_t size) override;
35   long ReadTag(uint64_t addr) override;
36 
pid()37   pid_t pid() { return pid_; }
38 
39  private:
40   pid_t pid_;
41   std::atomic_uintptr_t read_redirect_func_;
42 };
43 
44 }  // namespace unwindstack
45 
46 #endif  // _LIBUNWINDSTACK_MEMORY_REMOTE_H
47