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_FRAMEWORK_NATIVE_UNIFIED_PROCESS_CPU_USAGE_COLLECTOR_H
17 #define HIVIEW_FRAMEWORK_NATIVE_UNIFIED_PROCESS_CPU_USAGE_COLLECTOR_H
18 
19 #include <memory>
20 
21 #include "cpu_calculator.h"
22 #include "cpu_util.h"
23 
24 namespace OHOS {
25 namespace HiviewDFX {
26 namespace UCollectUtil {
27 
28 class SysCpuUsageCollector {
29 public:
30     explicit SysCpuUsageCollector(std::shared_ptr<CpuCalculator> cpuCalculator);
31     virtual ~SysCpuUsageCollector() = default;
32 
33 public:
34     CollectResult<SysCpuUsage> CollectSysCpuUsage(bool isNeedUpdate = false);
35 
36 private:
37     void CalculateSysCpuUsageInfos(std::vector<CpuUsageInfo>& cpuInfos,
38         const std::vector<CpuTimeInfo>& currCpuTimeInfos);
39 
40 private:
41     uint64_t lastSysCpuUsageTime_ = 0;
42     std::vector<CpuTimeInfo> lastSysCpuTimeInfos_;
43     std::shared_ptr<CpuCalculator> cpuCalculator_;
44 };
45 } // namespace UCollectUtil
46 } // namespace HiviewDFX
47 } // namespace OHOS
48 #endif // HIVIEW_FRAMEWORK_NATIVE_UNIFIED_PROCESS_CPU_USAGE_COLLECTOR_H