blob: d85535cd8c9c6a333cbd12bd940508a124d29716 [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.
#include "services/device/generic_sensor/platform_sensor_win.h"
#include "base/single_thread_task_runner.h"
namespace device {
namespace {
constexpr double kDefaultSensorReportingFrequency = 5.0;
} // namespace
PlatformSensorWin::PlatformSensorWin(
mojom::SensorType type,
mojo::ScopedSharedBufferMapping mapping,
PlatformSensorProvider* provider,
scoped_refptr<base::SingleThreadTaskRunner> sensor_thread_runner,
std::unique_ptr<PlatformSensorReaderWin> sensor_reader)
: PlatformSensor(type, std::move(mapping), provider),
sensor_thread_runner_(sensor_thread_runner),
sensor_reader_(sensor_reader.release()),
weak_factory_(this) {
DCHECK(sensor_reader_);
sensor_reader_->SetClient(this);
}
PlatformSensorConfiguration PlatformSensorWin::GetDefaultConfiguration() {
return PlatformSensorConfiguration(kDefaultSensorReportingFrequency);
}
mojom::ReportingMode PlatformSensorWin::GetReportingMode() {
// All Windows sensors, even with high accuracy / sensitivity will not report
// reading updates continuously. Therefore, return ON_CHANGE by default.
return mojom::ReportingMode::ON_CHANGE;
}
double PlatformSensorWin::GetMaximumSupportedFrequency() {
double minimal_reporting_interval_ms =
sensor_reader_->GetMinimalReportingIntervalMs();
if (!minimal_reporting_interval_ms)
return kDefaultSensorReportingFrequency;
return base::Time::kMillisecondsPerSecond / minimal_reporting_interval_ms;
}
void PlatformSensorWin::OnReadingUpdated(const SensorReading& reading) {
UpdateSharedBufferAndNotifyClients(reading);
}
void PlatformSensorWin::OnSensorError() {
task_runner_->PostTask(FROM_HERE,
base::Bind(&PlatformSensorWin::NotifySensorError,
weak_factory_.GetWeakPtr()));
}
bool PlatformSensorWin::StartSensor(
const PlatformSensorConfiguration& configuration) {
DCHECK(task_runner_->BelongsToCurrentThread());
return sensor_reader_->StartSensor(configuration);
}
void PlatformSensorWin::StopSensor() {
DCHECK(task_runner_->BelongsToCurrentThread());
sensor_reader_->StopSensor();
}
bool PlatformSensorWin::CheckSensorConfiguration(
const PlatformSensorConfiguration& configuration) {
DCHECK(task_runner_->BelongsToCurrentThread());
double minimal_reporting_interval_ms =
sensor_reader_->GetMinimalReportingIntervalMs();
if (minimal_reporting_interval_ms == 0)
return true;
double max_frequency =
base::Time::kMillisecondsPerSecond / minimal_reporting_interval_ms;
return configuration.frequency() <= max_frequency;
}
PlatformSensorWin::~PlatformSensorWin() {
sensor_reader_->SetClient(nullptr);
sensor_thread_runner_->DeleteSoon(FROM_HERE, sensor_reader_);
}
} // namespace device