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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_H_ | 5 #ifndef DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_H_ |
6 #define DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_H_ | 6 #define DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_H_ |
7 | 7 |
8 #include <list> | 8 #include <list> |
9 #include <map> | 9 #include <map> |
10 | 10 |
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34 virtual void OnSensorReadingChanged() = 0; | 34 virtual void OnSensorReadingChanged() = 0; |
35 virtual void OnSensorError() = 0; | 35 virtual void OnSensorError() = 0; |
36 virtual bool IsNotificationSuspended() = 0; | 36 virtual bool IsNotificationSuspended() = 0; |
37 | 37 |
38 protected: | 38 protected: |
39 virtual ~Client() {} | 39 virtual ~Client() {} |
40 }; | 40 }; |
41 | 41 |
42 virtual mojom::ReportingMode GetReportingMode() = 0; | 42 virtual mojom::ReportingMode GetReportingMode() = 0; |
43 virtual PlatformSensorConfiguration GetDefaultConfiguration() = 0; | 43 virtual PlatformSensorConfiguration GetDefaultConfiguration() = 0; |
| 44 virtual bool StartSensor( |
| 45 const PlatformSensorConfiguration& configuration) = 0; |
| 46 virtual void StopSensor() = 0; |
44 | 47 |
45 // Can be overriden to return the sensor maximum sampling frequency | 48 // Can be overriden to return the sensor maximum sampling frequency |
46 // value obtained from the platform if it is available. If platfrom | 49 // value obtained from the platform if it is available. If platfrom |
47 // does not provide maximum sampling frequency this method must | 50 // does not provide maximum sampling frequency this method must |
48 // return default frequency. | 51 // return default frequency. |
49 // The default implementation returns default frequency. | 52 // The default implementation returns default frequency. |
50 virtual double GetMaximumSupportedFrequency(); | 53 virtual double GetMaximumSupportedFrequency(); |
51 | 54 |
52 // Can be overriden to return the sensor minimum sampling frequency. | 55 // Can be overriden to return the sensor minimum sampling frequency. |
53 // The default implementation returns '1.0 / (60 * 60)', i.e. once per hour. | 56 // The default implementation returns '1.0 / (60 * 60)', i.e. once per hour. |
54 virtual double GetMinimumSupportedFrequency(); | 57 virtual double GetMinimumSupportedFrequency(); |
55 | 58 |
56 mojom::SensorType GetType() const; | 59 mojom::SensorType GetType() const; |
57 | 60 |
58 bool StartListening(Client* client, | 61 bool StartListening(Client* client, |
59 const PlatformSensorConfiguration& config); | 62 const PlatformSensorConfiguration& config); |
60 bool StopListening(Client* client, const PlatformSensorConfiguration& config); | 63 bool StopListening(Client* client, const PlatformSensorConfiguration& config); |
61 | 64 |
62 void UpdateSensor(); | 65 void UpdateSensor(); |
63 | 66 |
64 void AddClient(Client*); | 67 void AddClient(Client*); |
65 void RemoveClient(Client*); | 68 void RemoveClient(Client*); |
66 | 69 |
| 70 const mojo::ScopedSharedBufferMapping& shared_buffer_mapping() { |
| 71 return shared_buffer_mapping_; |
| 72 } |
| 73 |
67 protected: | 74 protected: |
68 virtual ~PlatformSensor(); | 75 virtual ~PlatformSensor(); |
69 PlatformSensor(mojom::SensorType type, | 76 PlatformSensor(mojom::SensorType type, |
70 mojo::ScopedSharedBufferMapping mapping, | 77 mojo::ScopedSharedBufferMapping mapping, |
71 PlatformSensorProvider* provider); | 78 PlatformSensorProvider* provider); |
72 | 79 |
73 using ConfigMap = std::map<Client*, std::list<PlatformSensorConfiguration>>; | 80 using ConfigMap = std::map<Client*, std::list<PlatformSensorConfiguration>>; |
74 using ReadingBuffer = SensorReadingSharedBuffer; | 81 using ReadingBuffer = SensorReadingSharedBuffer; |
75 | 82 |
76 virtual bool UpdateSensorInternal(const ConfigMap& configurations); | 83 virtual bool UpdateSensorInternal(const ConfigMap& configurations); |
77 virtual bool StartSensor( | |
78 const PlatformSensorConfiguration& configuration) = 0; | |
79 virtual void StopSensor() = 0; | |
80 virtual bool CheckSensorConfiguration( | 84 virtual bool CheckSensorConfiguration( |
81 const PlatformSensorConfiguration& configuration) = 0; | 85 const PlatformSensorConfiguration& configuration) = 0; |
82 | 86 |
83 // Updates shared buffer with new sensor reading data. | 87 // Updates shared buffer with new sensor reading data. |
84 // Note: this method is thread-safe. | 88 // Note: this method is thread-safe. |
85 void UpdateSensorReading(const SensorReading& reading, bool notify_clients); | 89 void UpdateSensorReading(const SensorReading& reading, bool notify_clients); |
86 | 90 |
87 void NotifySensorReadingChanged(); | 91 void NotifySensorReadingChanged(); |
88 void NotifySensorError(); | 92 void NotifySensorError(); |
89 | 93 |
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102 base::ObserverList<Client, true> clients_; | 106 base::ObserverList<Client, true> clients_; |
103 ConfigMap config_map_; | 107 ConfigMap config_map_; |
104 PlatformSensorProvider* provider_; | 108 PlatformSensorProvider* provider_; |
105 base::WeakPtrFactory<PlatformSensor> weak_factory_; | 109 base::WeakPtrFactory<PlatformSensor> weak_factory_; |
106 DISALLOW_COPY_AND_ASSIGN(PlatformSensor); | 110 DISALLOW_COPY_AND_ASSIGN(PlatformSensor); |
107 }; | 111 }; |
108 | 112 |
109 } // namespace device | 113 } // namespace device |
110 | 114 |
111 #endif // DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_H_ | 115 #endif // DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_H_ |
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