1 /*
2  * Copyright (c) 2022-2023 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 
16 #ifndef THERMAL_DFX_H
17 #define THERMAL_DFX_H
18 
19 #include <atomic>
20 #include <fstream>
21 #include <map>
22 #include <memory>
23 #include <string>
24 #include <thread>
25 
26 #include "nocopyable.h"
27 #include "thermal_hdf_config.h"
28 
29 namespace OHOS {
30 namespace HDI {
31 namespace Thermal {
32 namespace V1_1 {
33 class ThermalDfx : public NoCopyable {
34 public:
35     ThermalDfx();
36     ~ThermalDfx();
37 
38     void Init();
39     void DoWork();
40     uint32_t GetInterval();
41     static ThermalDfx& GetInstance();
42     static void DestroyInstance();
43 
44 private:
45     std::string CanonicalizeSpecPath(const char* src);
46     bool Compress(const std::string& dataFile, const std::string& destFile);
47     void CreateLogFile();
48     void ProcessLogInfo(std::string& logFile, bool isEmpty);
49     void WriteToEmptyFile(std::ofstream& wStream, std::string& currentTime);
50     void WriteToFile(std::ofstream& wStream, std::string& currentTime);
51     void CompressFile();
52     bool PrepareWriteDfxLog();
53     std::string GetFileNameIndex(const uint32_t index);
54     int32_t GetIntParameter(const std::string& key, const int32_t def, const int32_t minValue);
55     bool GetBoolParameter(const std::string& key, const bool def);
56     void WidthWatchCallback(const std::string& value);
57     void IntervalWatchCallback(const std::string& value);
58     void EnableWatchCallback(const std::string& value);
59     static void InfoChangedCallback(const char* key, const char* value, void* context);
60 
61     std::atomic_uint8_t width_;
62     std::atomic_uint32_t interval_;
63     std::atomic_bool enable_;
64     static std::mutex mutexInstance_;
65     static std::shared_ptr<ThermalDfx> instance_;
66 };
67 } // V1_1
68 } // Thermal
69 } // HDI
70 } // OHOS
71 #endif // THERMAL_DFX_H
72