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| 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 |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_WIN_H_ |
| 6 #define DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_WIN_H_ |
| 7 |
| 8 #include <SensorsApi.h> |
| 9 |
| 10 #include "base/win/scoped_comptr.h" |
| 11 #include "device/generic_sensor/generic_sensor_export.h" |
| 12 #include "device/generic_sensor/platform_sensor_provider.h" |
| 13 |
| 14 namespace base { |
| 15 template <typename T> |
| 16 struct DefaultSingletonTraits; |
| 17 class Thread; |
| 18 } |
| 19 |
| 20 namespace device { |
| 21 |
| 22 class PlatformSensorReaderWin; |
| 23 |
| 24 // Implementation of PlatformSensorProvider for Windows platform. |
| 25 // PlatformSensorProviderWin is responsible for following tasks: |
| 26 // - Starts sensor thread and stops it when there are no active sensors. |
| 27 // - Initialises ISensorManager and creates sensor reader on sensor thread. |
| 28 // - Constructs PlatformSensorWin on IPC thread and returns it to requester. |
| 29 class DEVICE_GENERIC_SENSOR_EXPORT PlatformSensorProviderWin final |
| 30 : public PlatformSensorProvider { |
| 31 public: |
| 32 static PlatformSensorProviderWin* GetInstance(); |
| 33 |
| 34 // Overrides ISensorManager COM interface provided by the system, used |
| 35 // only for testing purposes. |
| 36 void SetSensorManagerForTesting( |
| 37 base::win::ScopedComPtr<ISensorManager> sensor_manager); |
| 38 |
| 39 protected: |
| 40 ~PlatformSensorProviderWin() override; |
| 41 |
| 42 // PlatformSensorProvider interface implementation. |
| 43 void AllSensorsRemoved() override; |
| 44 void CreateSensorInternal(mojom::SensorType type, |
| 45 mojo::ScopedSharedBufferMapping mapping, |
| 46 const CreateSensorCallback& callback) override; |
| 47 |
| 48 private: |
| 49 PlatformSensorProviderWin(); |
| 50 |
| 51 bool InitializeSensorManager(); |
| 52 bool StartSensorThread(); |
| 53 void StopSensorThread(); |
| 54 std::unique_ptr<PlatformSensorReaderWin> CreateSensorReader( |
| 55 mojom::SensorType type); |
| 56 void SensorReaderCreated( |
| 57 mojom::SensorType type, |
| 58 mojo::ScopedSharedBufferMapping mapping, |
| 59 const CreateSensorCallback& callback, |
| 60 std::unique_ptr<PlatformSensorReaderWin> sensor_reader); |
| 61 |
| 62 private: |
| 63 friend struct base::DefaultSingletonTraits<PlatformSensorProviderWin>; |
| 64 |
| 65 base::win::ScopedComPtr<ISensorManager> sensor_manager_; |
| 66 std::unique_ptr<base::Thread> sensor_thread_; |
| 67 |
| 68 DISALLOW_COPY_AND_ASSIGN(PlatformSensorProviderWin); |
| 69 }; |
| 70 |
| 71 } // namespace device |
| 72 |
| 73 #endif // DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_WIN_H_ |
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