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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 "modules/sensor/SensorProxy.h" | 5 #include "modules/sensor/SensorProxy.h" |
6 | 6 |
7 #include "core/frame/LocalFrame.h" | 7 #include "core/frame/LocalFrame.h" |
8 #include "modules/sensor/SensorProviderProxy.h" | 8 #include "modules/sensor/SensorProviderProxy.h" |
9 #include "modules/sensor/SensorReading.h" | 9 #include "modules/sensor/SensorReading.h" |
10 #include "platform/mojo/MojoHelper.h" | 10 #include "platform/mojo/MojoHelper.h" |
11 #include "public/platform/Platform.h" | 11 #include "public/platform/Platform.h" |
12 | 12 |
13 using namespace device::mojom::blink; | 13 using namespace device::mojom::blink; |
14 | 14 |
15 namespace blink { | 15 namespace blink { |
16 | 16 |
17 SensorProxy::SensorProxy(SensorType sensorType, | 17 SensorProxy::SensorProxy(SensorType sensorType, |
18 SensorProviderProxy* provider, | 18 SensorProviderProxy* provider, |
19 std::unique_ptr<SensorReadingFactory> readingFactory) | 19 std::unique_ptr<SensorReadingFactory> readingFactory) |
20 : m_type(sensorType), | 20 : m_type(sensorType), |
21 m_mode(ReportingMode::CONTINUOUS), | 21 m_mode(ReportingMode::CONTINUOUS), |
22 m_provider(provider), | 22 m_provider(provider), |
23 m_clientBinding(this), | 23 m_clientBinding(this), |
24 m_state(SensorProxy::Uninitialized), | 24 m_state(SensorProxy::Uninitialized), |
25 m_suspended(false), | 25 m_suspended(false), |
26 m_readingFactory(std::move(readingFactory)) {} | 26 m_readingFactory(std::move(readingFactory)), |
| 27 m_maximumFrequency(0.0) {} |
27 | 28 |
28 SensorProxy::~SensorProxy() {} | 29 SensorProxy::~SensorProxy() {} |
29 | 30 |
30 void SensorProxy::dispose() { | 31 void SensorProxy::dispose() { |
31 m_clientBinding.Close(); | 32 m_clientBinding.Close(); |
32 } | 33 } |
33 | 34 |
34 DEFINE_TRACE(SensorProxy) { | 35 DEFINE_TRACE(SensorProxy) { |
35 visitor->trace(m_reading); | 36 visitor->trace(m_reading); |
36 visitor->trace(m_observers); | 37 visitor->trace(m_observers); |
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173 m_sharedBufferHandle = std::move(params->memory); | 174 m_sharedBufferHandle = std::move(params->memory); |
174 DCHECK(!m_sharedBuffer); | 175 DCHECK(!m_sharedBuffer); |
175 m_sharedBuffer = | 176 m_sharedBuffer = |
176 m_sharedBufferHandle->MapAtOffset(kReadBufferSize, params->buffer_offset); | 177 m_sharedBufferHandle->MapAtOffset(kReadBufferSize, params->buffer_offset); |
177 | 178 |
178 if (!m_sharedBuffer) { | 179 if (!m_sharedBuffer) { |
179 handleSensorError(); | 180 handleSensorError(); |
180 return; | 181 return; |
181 } | 182 } |
182 | 183 |
| 184 m_maximumFrequency = params->maximum_frequency; |
| 185 DCHECK(m_maximumFrequency <= SensorConfiguration::kMaxAllowedFrequency); |
| 186 |
183 auto errorCallback = | 187 auto errorCallback = |
184 WTF::bind(&SensorProxy::handleSensorError, wrapWeakPersistent(this), | 188 WTF::bind(&SensorProxy::handleSensorError, wrapWeakPersistent(this), |
185 UnknownError, String("Internal error"), String()); | 189 UnknownError, String("Internal error"), String()); |
186 m_sensor.set_connection_error_handler( | 190 m_sensor.set_connection_error_handler( |
187 convertToBaseCallback(std::move(errorCallback))); | 191 convertToBaseCallback(std::move(errorCallback))); |
188 | 192 |
189 m_state = Initialized; | 193 m_state = Initialized; |
190 for (Observer* observer : m_observers) | 194 for (Observer* observer : m_observers) |
191 observer->onSensorInitialized(); | 195 observer->onSensorInitialized(); |
192 } | 196 } |
193 | 197 |
194 bool SensorProxy::tryReadFromBuffer(device::SensorReading& result) { | 198 bool SensorProxy::tryReadFromBuffer(device::SensorReading& result) { |
195 DCHECK(isInitialized()); | 199 DCHECK(isInitialized()); |
196 const ReadingBuffer* buffer = | 200 const ReadingBuffer* buffer = |
197 static_cast<const ReadingBuffer*>(m_sharedBuffer.get()); | 201 static_cast<const ReadingBuffer*>(m_sharedBuffer.get()); |
198 const device::OneWriterSeqLock& seqlock = buffer->seqlock.value(); | 202 const device::OneWriterSeqLock& seqlock = buffer->seqlock.value(); |
199 auto version = seqlock.ReadBegin(); | 203 auto version = seqlock.ReadBegin(); |
200 auto readingData = buffer->reading; | 204 auto readingData = buffer->reading; |
201 if (seqlock.ReadRetry(version)) | 205 if (seqlock.ReadRetry(version)) |
202 return false; | 206 return false; |
203 result = readingData; | 207 result = readingData; |
204 return true; | 208 return true; |
205 } | 209 } |
206 | 210 |
207 } // namespace blink | 211 } // namespace blink |
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