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 
16 #ifndef HIVIEW_THREAD_STATE_INFO_COLLECTOR_H
17 #define HIVIEW_THREAD_STATE_INFO_COLLECTOR_H
18 #include <mutex>
19 
20 #include "cpu.h"
21 #include "collect_result.h"
22 #include "collect_device_client.h"
23 #include "cpu_calculator.h"
24 #include "cpu_collector.h"
25 
26 namespace OHOS {
27 namespace HiviewDFX {
28 namespace UCollectUtil {
29 
30 struct ThreadCpuTimeInfo {
31     uint64_t uUsageTime = 0;
32     uint64_t sUsageTime = 0;
33     uint64_t loadTime = 0;
34     uint64_t collectionTime = 0;
35     uint64_t collectionBootTime = 0;
36 };
37 
38 class ThreadStateInfoCollector : public ThreadCpuCollector {
39 public:
40     ThreadStateInfoCollector(std::shared_ptr<CollectDeviceClient> deviceClient,
41          std::shared_ptr<CpuCalculator> cpuCalculator, int collectPid);
42     explicit ThreadStateInfoCollector(int32_t collectPid);
43     virtual ~ThreadStateInfoCollector() = default;
44 
45 public:
46     CollectResult<std::vector<ThreadCpuStatInfo>> CollectThreadStatInfos(bool isNeedUpdate) override;
47     int GetCollectPid() override;
48 
49 private:
50     void InitLastThreadCpuTimeInfos();
51     CalculationTimeInfo InitCalculationTimeInfo();
52     std::shared_ptr<ThreadCpuData> FetchThreadCpuData();
53     void UpdateLastThreadTimeInfo(const ucollection_thread_cpu_item* threadCpuItem,
54         const CalculationTimeInfo& calcTimeInfo);
55     void CalculateThreadCpuStatInfos(std::vector<ThreadCpuStatInfo>& ThreadCpuStatInfos,
56         std::shared_ptr<ThreadCpuData> ThreadCpuData, bool isNeedUpdate);
57     std::optional<ThreadCpuStatInfo> CalculateThreadCpuStatInfo(
58         const ucollection_thread_cpu_item* procCpuItem, const CalculationTimeInfo& calcTimeInfo);
59     void UpdateCollectionTime(const CalculationTimeInfo& calcTimeInfo);
60     void TryToDeleteDeadThreadInfo();
61     void InitDeviceClient();
62 
63 private:
64     std::mutex collectMutex_;
65     uint64_t lastCollectionTime_ = 0;
66     uint64_t lastCollectionBootTime_ = 0;
67     std::shared_ptr<CollectDeviceClient> deviceClient_;
68     std::shared_ptr<CpuCalculator> cpuCalculator_;
69     std::unordered_map<int32_t, ThreadCpuTimeInfo> lastThreadCpuTimeInfos_;
70     int collectPid_ = 0;
71 };
72 } // namespace UCollectUtil
73 } // namespace HiviewDFX
74 } // namespace OHOS
75 #endif //HIVIEW_THREAD_CPU_STATE_INFO_COLLECTOR_H
76