1 /*
2  * Copyright (C) 2015 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 PROCESS_INFO_H_
18 
19 #define PROCESS_INFO_H_
20 
21 #include <mediautils/ProcessInfoInterface.h>
22 #include <map>
23 #include <mutex>
24 #include <utils/Condition.h>
25 
26 namespace android {
27 
28 struct ProcessInfo : public ProcessInfoInterface {
29     ProcessInfo();
30 
31     virtual bool getPriority(int pid, int* priority);
32     virtual bool isPidTrusted(int pid);
33     virtual bool isPidUidTrusted(int pid, int uid);
34     virtual bool overrideProcessInfo(int pid, int procState, int oomScore);
35     virtual void removeProcessInfoOverride(int pid);
36     bool checkProcessExistent(const std::vector<int32_t>& pids,
37                               std::vector<bool>* existent) override;
38 
39 protected:
40     virtual ~ProcessInfo();
41 
42 private:
43     struct ProcessInfoOverride {
44         int procState;
45         int oomScore;
46     };
47     std::mutex mOverrideLock;
48     std::map<int, ProcessInfoOverride> mOverrideMap GUARDED_BY(mOverrideLock);
49 
50     ProcessInfo(const ProcessInfo&) = delete;
51     ProcessInfo& operator=(const ProcessInfo&) = delete;
52 };
53 
54 }  // namespace android
55 
56 #endif  // PROCESS_INFO_H_
57