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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 "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/strings/string_number_conversions.h" | 9 #include "base/strings/string_number_conversions.h" |
10 #include "base/strings/string_util.h" | 10 #include "base/strings/string_util.h" |
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57 const SensorInfoLinux* sensor_device, | 57 const SensorInfoLinux* sensor_device, |
58 base::WeakPtr<PlatformSensorLinux> sensor, | 58 base::WeakPtr<PlatformSensorLinux> sensor, |
59 scoped_refptr<base::SingleThreadTaskRunner> task_runner) | 59 scoped_refptr<base::SingleThreadTaskRunner> task_runner) |
60 : SensorReader(sensor, std::move(task_runner)), | 60 : SensorReader(sensor, std::move(task_runner)), |
61 sensor_file_paths_(sensor_device->device_reading_files), | 61 sensor_file_paths_(sensor_device->device_reading_files), |
62 scaling_value_(sensor_device->device_scaling_value), | 62 scaling_value_(sensor_device->device_scaling_value), |
63 offset_value_(sensor_device->device_offset_value), | 63 offset_value_(sensor_device->device_offset_value), |
64 apply_scaling_func_(sensor_device->apply_scaling_func) {} | 64 apply_scaling_func_(sensor_device->apply_scaling_func) {} |
65 | 65 |
66 PollingSensorReader::~PollingSensorReader() { | 66 PollingSensorReader::~PollingSensorReader() { |
67 DCHECK(thread_checker_.CalledOnValidThread()); | 67 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
68 } | 68 } |
69 | 69 |
70 void PollingSensorReader::StartFetchingData( | 70 void PollingSensorReader::StartFetchingData( |
71 const PlatformSensorConfiguration& configuration) { | 71 const PlatformSensorConfiguration& configuration) { |
72 DCHECK(thread_checker_.CalledOnValidThread()); | 72 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
73 if (is_reading_active_) | 73 if (is_reading_active_) |
74 StopFetchingData(); | 74 StopFetchingData(); |
75 InitializeTimer(configuration); | 75 InitializeTimer(configuration); |
76 } | 76 } |
77 | 77 |
78 void PollingSensorReader::StopFetchingData() { | 78 void PollingSensorReader::StopFetchingData() { |
79 DCHECK(thread_checker_.CalledOnValidThread()); | 79 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
80 is_reading_active_ = false; | 80 is_reading_active_ = false; |
81 timer_.Stop(); | 81 timer_.Stop(); |
82 } | 82 } |
83 | 83 |
84 void PollingSensorReader::InitializeTimer( | 84 void PollingSensorReader::InitializeTimer( |
85 const PlatformSensorConfiguration& configuration) { | 85 const PlatformSensorConfiguration& configuration) { |
86 DCHECK(thread_checker_.CalledOnValidThread()); | 86 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
87 DCHECK(!is_reading_active_); | 87 DCHECK(!is_reading_active_); |
88 timer_.Start(FROM_HERE, base::TimeDelta::FromMicroseconds( | 88 timer_.Start(FROM_HERE, base::TimeDelta::FromMicroseconds( |
89 base::Time::kMicrosecondsPerSecond / | 89 base::Time::kMicrosecondsPerSecond / |
90 configuration.frequency()), | 90 configuration.frequency()), |
91 this, &PollingSensorReader::PollForData); | 91 this, &PollingSensorReader::PollForData); |
92 is_reading_active_ = true; | 92 is_reading_active_ = true; |
93 } | 93 } |
94 | 94 |
95 void PollingSensorReader::PollForData() { | 95 void PollingSensorReader::PollForData() { |
96 DCHECK(thread_checker_.CalledOnValidThread()); | 96 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
97 | 97 |
98 SensorReading readings; | 98 SensorReading readings; |
99 DCHECK_LE(sensor_file_paths_.size(), arraysize(readings.values)); | 99 DCHECK_LE(sensor_file_paths_.size(), arraysize(readings.values)); |
100 int i = 0; | 100 int i = 0; |
101 for (const auto& path : sensor_file_paths_) { | 101 for (const auto& path : sensor_file_paths_) { |
102 std::string new_read_value; | 102 std::string new_read_value; |
103 if (!base::ReadFileToString(path, &new_read_value)) { | 103 if (!base::ReadFileToString(path, &new_read_value)) { |
104 NotifyReadError(); | 104 NotifyReadError(); |
105 StopFetchingData(); | 105 StopFetchingData(); |
106 return; | 106 return; |
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136 return base::MakeUnique<PollingSensorReader>(sensor_device, sensor, | 136 return base::MakeUnique<PollingSensorReader>(sensor_device, sensor, |
137 std::move(task_runner)); | 137 std::move(task_runner)); |
138 } | 138 } |
139 | 139 |
140 SensorReader::SensorReader( | 140 SensorReader::SensorReader( |
141 base::WeakPtr<PlatformSensorLinux> sensor, | 141 base::WeakPtr<PlatformSensorLinux> sensor, |
142 scoped_refptr<base::SingleThreadTaskRunner> task_runner) | 142 scoped_refptr<base::SingleThreadTaskRunner> task_runner) |
143 : sensor_(sensor), | 143 : sensor_(sensor), |
144 task_runner_(std::move(task_runner)), | 144 task_runner_(std::move(task_runner)), |
145 is_reading_active_(false) { | 145 is_reading_active_(false) { |
146 thread_checker_.DetachFromThread(); | 146 DETACH_FROM_THREAD(thread_checker_); |
147 } | 147 } |
148 | 148 |
149 SensorReader::~SensorReader() { | 149 SensorReader::~SensorReader() { |
150 DCHECK(thread_checker_.CalledOnValidThread()); | 150 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
151 } | 151 } |
152 | 152 |
153 void SensorReader::NotifyReadError() { | 153 void SensorReader::NotifyReadError() { |
154 DCHECK(thread_checker_.CalledOnValidThread()); | 154 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
155 if (is_reading_active_) { | 155 if (is_reading_active_) { |
156 task_runner_->PostTask( | 156 task_runner_->PostTask( |
157 FROM_HERE, | 157 FROM_HERE, |
158 base::Bind(&PlatformSensorLinux::NotifyPlatformSensorError, sensor_)); | 158 base::Bind(&PlatformSensorLinux::NotifyPlatformSensorError, sensor_)); |
159 } | 159 } |
160 } | 160 } |
161 | 161 |
162 } // namespace device | 162 } // namespace device |
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