blob: f5022ce01147a4b5349685f5cac7e7f909a50fcf (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
#pragma once
/*
* Copyright (C) 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <chrono>
#include <map>
#include "ICpuLoadReader.h"
#include "IFilesystem.h"
#include "ITimeSource.h"
#include "Model.h"
#include "RealFilesystem.h"
#include "TimeSource.h"
namespace aidl {
namespace google {
namespace hardware {
namespace power {
namespace impl {
namespace pixel {
struct CpuTime {
std::chrono::microseconds idleTime;
std::chrono::microseconds totalTime;
};
// Reads CPU idle stats from /sys/devices/system/cpu/cpuN/cpuidle.
class CpuLoadReaderSysDevices : public ICpuLoadReader {
public:
CpuLoadReaderSysDevices()
: mFilesystem(std::make_unique<RealFilesystem>()),
mTimeSource(std::make_unique<TimeSource>()) {}
CpuLoadReaderSysDevices(std::unique_ptr<IFilesystem> filesystem,
std::unique_ptr<ITimeSource> timeSource)
: mFilesystem(std::move(filesystem)), mTimeSource(std::move(timeSource)) {}
bool Init() override;
bool GetRecentCpuLoads(std::array<double, NUM_CPU_CORES> *cpuCoreIdleTimesPercentage) override;
void DumpToStream(std::stringstream &stream) const override;
private:
const std::unique_ptr<IFilesystem> mFilesystem;
const std::unique_ptr<ITimeSource> mTimeSource;
std::array<CpuTime, NUM_CPU_CORES> mPreviousCpuTimes;
std::vector<std::string> mIdleStateNames;
bool ReadCpuTimes(std::array<CpuTime, NUM_CPU_CORES> *result) const;
bool ReadIdleStateNames(std::vector<std::string> *result) const;
};
} // namespace pixel
} // namespace impl
} // namespace power
} // namespace hardware
} // namespace google
} // namespace aidl
|
