OLD | NEW |
---|---|
(Empty) | |
1 // Copyright 2017 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CHROMEOS_SYSTEM_CPU_TEMPERATURE_READER_H_ | |
6 #define CHROMEOS_SYSTEM_CPU_TEMPERATURE_READER_H_ | |
7 | |
8 #include <string> | |
9 #include <utility> | |
10 #include <vector> | |
11 | |
12 #include "base/macros.h" | |
13 | |
14 namespace chromeos { | |
15 namespace system { | |
16 | |
17 // Used to read CPU temperature info from sysfs hwmon. | |
18 class CPUTemperatureReader { | |
19 public: | |
20 // Contains info from a CPU temperature sensor. | |
21 struct CPUTemperatureInfo { | |
Daniel Erat
2017/04/21 21:01:20
i think you need to declare a c'tor and d'tor here
Simon Que
2017/04/24 13:59:17
Done.
| |
22 // The temperature read by a CPU temperature sensor in degrees Celsius. | |
23 double temp_celsius; | |
24 | |
25 // The name of the CPU temperature zone monitored by this sensor. Used to | |
26 // identify the source of each temperature reading. Taken from sysfs "name" | |
27 // or "label" field, if it exists. | |
28 std::string label; | |
29 | |
30 bool operator<(const CPUTemperatureInfo& other) const { | |
Daniel Erat
2017/04/21 21:01:20
move this method above the members; also move the
Simon Que
2017/04/24 13:59:17
Done.
| |
31 return std::make_pair(temp_celsius, label) < | |
Daniel Erat
2017/04/21 21:01:20
sorting by temperature is a bit surprising. consid
Simon Que
2017/04/24 13:59:17
Done.
| |
32 std::make_pair(other.temp_celsius, label); | |
33 } | |
34 }; | |
35 | |
36 CPUTemperatureReader(); | |
37 | |
Daniel Erat
2017/04/21 21:01:20
nit: delete blank line here
Simon Que
2017/04/24 13:59:17
Done.
| |
38 ~CPUTemperatureReader(); | |
39 | |
40 void set_hwmon_dir_for_test(const std::string& dir) { hwmon_dir_ = dir; } | |
41 | |
42 // Read temperature from each thermal sensor of the CPU. Returns a vector | |
43 // containing a reading from each sensor to |callback|. This is a blocking | |
Daniel Erat
2017/04/21 21:01:20
fix comment; there's no callback now. also s/Read/
Simon Que
2017/04/24 13:59:17
Done.
| |
44 // function that should be run on a thread that allows blocking operations. | |
45 std::vector<CPUTemperatureInfo> GetCPUTemperatures(); | |
46 | |
47 private: | |
48 // Sysfs hwmon directory path. | |
49 std::string hwmon_dir_; | |
50 | |
51 DISALLOW_COPY_AND_ASSIGN(CPUTemperatureReader); | |
52 }; | |
53 | |
54 } // namespace system | |
55 } // namespace chromeos | |
56 | |
57 #endif // CHROMEOS_SYSTEM_CPU_TEMPERATURE_READER_H_ | |
OLD | NEW |