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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_CONFIGURATION_H_ | 5 #ifndef DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_CONFIGURATION_H_ |
6 #define DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_CONFIGURATION_H_ | 6 #define DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_CONFIGURATION_H_ |
7 | 7 |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 | 9 |
10 namespace device { | 10 namespace device { |
11 | 11 |
12 class PlatformSensorConfiguration { | 12 class PlatformSensorConfiguration { |
13 public: | 13 public: |
14 PlatformSensorConfiguration(); | 14 PlatformSensorConfiguration(); |
15 explicit PlatformSensorConfiguration(double frequency); | 15 explicit PlatformSensorConfiguration(double frequency); |
16 ~PlatformSensorConfiguration(); | 16 ~PlatformSensorConfiguration(); |
17 | 17 |
18 bool operator==(const PlatformSensorConfiguration& other) const; | 18 bool operator==(const PlatformSensorConfiguration& other) const; |
19 | 19 |
| 20 // Platform dependent implementations can override this operator if different |
| 21 // optimal configuration comparison is required. By default, only frequency is |
| 22 // used to compare two configurations. |
| 23 virtual bool operator>(const PlatformSensorConfiguration& other) const; |
| 24 |
20 void set_frequency(double frequency) { | 25 void set_frequency(double frequency) { |
21 DCHECK(frequency_ <= kMaxAllowedFrequency && frequency_ > 0.0); | 26 DCHECK(frequency_ <= kMaxAllowedFrequency && frequency_ > 0.0); |
22 frequency_ = frequency; | 27 frequency_ = frequency; |
23 } | 28 } |
24 | 29 |
25 double frequency() const { return frequency_; } | 30 double frequency() const { return frequency_; } |
26 | 31 |
27 static constexpr double kMaxAllowedFrequency = 60.0; | 32 static constexpr double kMaxAllowedFrequency = 60.0; |
28 | 33 |
29 private: | 34 private: |
30 double frequency_ = 1.0; // 1 Hz by default. | 35 double frequency_ = 1.0; // 1 Hz by default. |
31 }; | 36 }; |
32 | 37 |
33 } // namespace device | 38 } // namespace device |
34 | 39 |
35 #endif // DEVICE_SENSORS_PLATFORM_SENSOR_CONFIGURATION_H_ | 40 #endif // DEVICE_SENSORS_PLATFORM_SENSOR_CONFIGURATION_H_ |
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