Index: device/generic_sensor/polling_platform_sensor.h |
diff --git a/device/generic_sensor/polling_platform_sensor.h b/device/generic_sensor/polling_platform_sensor.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..32bad835397316d7f529d5db9607a6b982d117cd |
--- /dev/null |
+++ b/device/generic_sensor/polling_platform_sensor.h |
@@ -0,0 +1,64 @@ |
+// Copyright 2016 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef DEVICE_GENERIC_SENSOR_POLLING_PLATFORM_SENSOR_H_ |
+#define DEVICE_GENERIC_SENSOR_POLLING_PLATFORM_SENSOR_H_ |
+ |
+#include "device/generic_sensor/platform_sensor.h" |
+ |
+#include "base/timer/timer.h" |
+ |
+namespace base { |
+class SingleThreadTaskRunner; |
+} |
+ |
+namespace device { |
+ |
+class PollingPlatformSensor : public PlatformSensor { |
+ public: |
+ class Deleter { |
+ public: |
+ Deleter(); |
+ ~Deleter(); |
+ |
+ void operator()(base::RepeatingTimer* timer) const; |
+ |
+ void set_helper(scoped_refptr<base::SingleThreadTaskRunner> task_runner) { |
+ task_runner_ = task_runner; |
+ } |
+ |
+ private: |
+ void destroy_timer(base::RepeatingTimer* timer) const { delete (timer); } |
+ |
+ scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
+ }; |
+ |
+ PollingPlatformSensor( |
+ mojom::SensorType type, |
+ mojo::ScopedSharedBufferMapping mapping, |
+ PlatformSensorProvider* provider, |
+ scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner); |
+ |
+ virtual void UpdateReading() = 0; |
+ |
+ protected: |
+ ~PollingPlatformSensor() override; |
+ bool StartSensor(const PlatformSensorConfiguration& configuration) override; |
+ void StopSensor() override; |
+ scoped_refptr<base::SingleThreadTaskRunner> polling_thread_task_runner_; |
+ |
+ private: |
+ void BeginPoll(const PlatformSensorConfiguration& configuration); |
+ void StopPoll(); |
+ void OnStop(); |
+ |
+ std::unique_ptr<base::RepeatingTimer, PollingPlatformSensor::Deleter> timer_; |
+ base::WeakPtrFactory<PollingPlatformSensor> weak_factory_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(PollingPlatformSensor); |
+}; |
+ |
+} // namespace device |
+ |
+#endif // DEVICE_GENERIC_SENSOR_POLLING_PLATFORM_SENSOR_H_ |