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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 #include "device/generic_sensor/platform_sensor_reader_linux.h" | 5 #include "services/device/generic_sensor/platform_sensor_reader_linux.h" |
| 6 | 6 |
| 7 #include "base/files/file_util.h" | 7 #include "base/files/file_util.h" |
| 8 #include "base/memory/ptr_util.h" | 8 #include "base/memory/ptr_util.h" |
| 9 #include "base/single_thread_task_runner.h" | 9 #include "base/single_thread_task_runner.h" |
| 10 #include "base/strings/string_number_conversions.h" | 10 #include "base/strings/string_number_conversions.h" |
| 11 #include "base/strings/string_util.h" | 11 #include "base/strings/string_util.h" |
| 12 #include "base/threading/thread_restrictions.h" | 12 #include "base/threading/thread_restrictions.h" |
| 13 #include "base/timer/timer.h" | 13 #include "base/timer/timer.h" |
| 14 #include "device/generic_sensor/linux/sensor_data_linux.h" | 14 #include "services/device/generic_sensor/linux/sensor_data_linux.h" |
| 15 #include "device/generic_sensor/platform_sensor_linux.h" | 15 #include "services/device/generic_sensor/platform_sensor_linux.h" |
| 16 #include "device/generic_sensor/public/cpp/sensor_reading.h" | 16 #include "services/device/public/cpp/generic_sensor/sensor_reading.h" |
| 17 | 17 |
| 18 namespace device { | 18 namespace device { |
| 19 | 19 |
| 20 class PollingSensorReader : public SensorReader { | 20 class PollingSensorReader : public SensorReader { |
| 21 public: | 21 public: |
| 22 PollingSensorReader(const SensorInfoLinux* sensor_device, | 22 PollingSensorReader(const SensorInfoLinux* sensor_device, |
| 23 base::WeakPtr<PlatformSensorLinux> sensor, | 23 base::WeakPtr<PlatformSensorLinux> sensor, |
| 24 scoped_refptr<base::SingleThreadTaskRunner> task_runner); | 24 scoped_refptr<base::SingleThreadTaskRunner> task_runner); |
| 25 ~PollingSensorReader() override; | 25 ~PollingSensorReader() override; |
| 26 | 26 |
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| 79 void PollingSensorReader::StopFetchingData() { | 79 void PollingSensorReader::StopFetchingData() { |
| 80 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); | 80 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| 81 is_reading_active_ = false; | 81 is_reading_active_ = false; |
| 82 timer_.Stop(); | 82 timer_.Stop(); |
| 83 } | 83 } |
| 84 | 84 |
| 85 void PollingSensorReader::InitializeTimer( | 85 void PollingSensorReader::InitializeTimer( |
| 86 const PlatformSensorConfiguration& configuration) { | 86 const PlatformSensorConfiguration& configuration) { |
| 87 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); | 87 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| 88 DCHECK(!is_reading_active_); | 88 DCHECK(!is_reading_active_); |
| 89 timer_.Start(FROM_HERE, base::TimeDelta::FromMicroseconds( | 89 timer_.Start( |
| 90 base::Time::kMicrosecondsPerSecond / | 90 FROM_HERE, |
| 91 configuration.frequency()), | 91 base::TimeDelta::FromMicroseconds(base::Time::kMicrosecondsPerSecond / |
| 92 this, &PollingSensorReader::PollForData); | 92 configuration.frequency()), |
| 93 this, &PollingSensorReader::PollForData); |
| 93 is_reading_active_ = true; | 94 is_reading_active_ = true; |
| 94 } | 95 } |
| 95 | 96 |
| 96 void PollingSensorReader::PollForData() { | 97 void PollingSensorReader::PollForData() { |
| 97 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); | 98 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| 98 | 99 |
| 99 SensorReading readings; | 100 SensorReading readings; |
| 100 DCHECK_LE(sensor_file_paths_.size(), arraysize(readings.values)); | 101 DCHECK_LE(sensor_file_paths_.size(), arraysize(readings.values)); |
| 101 int i = 0; | 102 int i = 0; |
| 102 for (const auto& path : sensor_file_paths_) { | 103 for (const auto& path : sensor_file_paths_) { |
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| 154 void SensorReader::NotifyReadError() { | 155 void SensorReader::NotifyReadError() { |
| 155 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); | 156 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| 156 if (is_reading_active_) { | 157 if (is_reading_active_) { |
| 157 task_runner_->PostTask( | 158 task_runner_->PostTask( |
| 158 FROM_HERE, | 159 FROM_HERE, |
| 159 base::Bind(&PlatformSensorLinux::NotifyPlatformSensorError, sensor_)); | 160 base::Bind(&PlatformSensorLinux::NotifyPlatformSensorError, sensor_)); |
| 160 } | 161 } |
| 161 } | 162 } |
| 162 | 163 |
| 163 } // namespace device | 164 } // namespace device |
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