1 /*
2  * Copyright (c) 2024 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 #ifndef NATIVE_LEAK_DETECTOR_H
16 #define NATIVE_LEAK_DETECTOR_H
17 
18 #include <map>
19 #include <memory>
20 #include <string>
21 #include <unordered_map>
22 
23 #include "fault_common_base.h"
24 #include "fault_detector_base.h"
25 #include "fault_info_base.h"
26 #include "fault_state_base.h"
27 #include "ffrt.h"
28 #include "singleton.h"
29 
30 namespace OHOS {
31 namespace HiviewDFX {
32 class NativeLeakDetector : public FaultDetectorBase, public Singleton<NativeLeakDetector> {
33     DECLARE_SINGLETON(NativeLeakDetector);
34 
35 public:
36     void PrepareNativeLeakEnv();
37     void ProcessUserEvent(const std::string &name, const std::string &msg, uint32_t pid);
38     ErrCode MainProcess() override;
39     void OnChangeState(std::shared_ptr<FaultInfoBase> &monitorInfo, FaultStateType stateType) override;
40     ErrCode ExeNextStateProcess(std::shared_ptr<FaultInfoBase> monitorInfo, FaultStateType stateType) override;
41     FaultStateBase* GetStateObj(FaultStateType stateType) override;
42 
43 private:
44     void NativeLeakConfigParse();
45     void InitMonitorInfo();
46     void UpdateUserMonitorInfo();
47     void RecordNativeInfo();
48     void RemoveInvalidLeakedPid();
49     void RemoveInvalidUserInfo();
50     void UpdateProcessedPidsList();
51     void RemoveFinishedInfo(int64_t pid);
52     void DoProcessNativeLeak();
53     bool JudgeNativeLeak(std::shared_ptr<FaultInfoBase> &monitorInfo);
54     void AddMonitorToList(std::shared_ptr<FaultInfoBase> &monitorInfo);
55 
56 private:
57     uint32_t loopCnt_ { 0 };
58     uint32_t funcLoopCnt_ { 0 };
59     uint32_t sampleInterval_ { 0 };
60     uint32_t updateInterval_ { 0 };
61     uint64_t defauleThreshold_ { 0 };
62 
63     ffrt::mutex nativeDetectorMtx_;
64     std::unordered_map<std::string, uint64_t> thresholdLists_;
65     std::map<pid_t, std::shared_ptr<FaultInfoBase>> grayList_;
66     std::map<pid_t, std::string> monitoredPidsList_;
67 };
68 } // namespace HiviewDFX
69 } // namespace OHOS
70 #endif // NATIVE_LEAK_DETECTOR_H
71