blob: 310c8a17beec2a3c6d017cfc17f890ecfb74d367 [file] [log] [blame]
// 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 SERVICES_DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_LINUX_H_
#define SERVICES_DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_LINUX_H_
#include "services/device/generic_sensor/platform_sensor.h"
namespace base {
class SingleThreadTaskRunner;
}
namespace device {
class SensorReader;
struct SensorInfoLinux;
class PlatformSensorLinux : public PlatformSensor {
public:
PlatformSensorLinux(
mojom::SensorType type,
mojo::ScopedSharedBufferMapping mapping,
PlatformSensorProvider* provider,
const SensorInfoLinux* sensor_device,
scoped_refptr<base::SingleThreadTaskRunner> polling_thread_task_runner);
mojom::ReportingMode GetReportingMode() override;
// Called by a sensor reader. Takes new readings.
void UpdatePlatformSensorReading(SensorReading reading);
// Called by a sensor reader if an error occurs.
void NotifyPlatformSensorError();
protected:
~PlatformSensorLinux() override;
bool StartSensor(const PlatformSensorConfiguration& configuration) override;
void StopSensor() override;
bool CheckSensorConfiguration(
const PlatformSensorConfiguration& configuration) override;
PlatformSensorConfiguration GetDefaultConfiguration() override;
private:
const PlatformSensorConfiguration default_configuration_;
const mojom::ReportingMode reporting_mode_;
scoped_refptr<base::SingleThreadTaskRunner> polling_thread_task_runner_;
// A sensor reader that reads values from sensor files
// and stores them to a SensorReading structure.
std::unique_ptr<SensorReader> sensor_reader_;
// Stores previously read values that are used to
// determine whether the recent values are changed
// and IPC can be notified that updates are available.
SensorReading old_values_;
base::WeakPtrFactory<PlatformSensorLinux> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(PlatformSensorLinux);
};
} // namespace device
#endif // SERVICES_DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_LINUX_H_