Index: device/sensors/mojo/sensor_factory_impl.cc |
diff --git a/device/sensors/mojo/sensor_factory_impl.cc b/device/sensors/mojo/sensor_factory_impl.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3f44ab088fc176cdd1f55503eef27957b84e7321 |
--- /dev/null |
+++ b/device/sensors/mojo/sensor_factory_impl.cc |
@@ -0,0 +1,83 @@ |
+// 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 "device/sensors/mojo/sensor_factory_impl.h" |
+ |
+#include "device/sensors/mojo/sensor_impl.h" |
+#include "device/sensors/mojo/sensor_type_converters.h" |
+#include "device/sensors/platform/platform_sensor_provider.h" |
+ |
+namespace device { |
+namespace sensors { |
+ |
+namespace { |
+const uint64_t kSensorReadingInBytes = |
+ kSensorReadingFieldSize * kSensorReadingFieldsCount; |
+const uint64_t kSharedBufferSizeInBytes = |
+ kSensorReadingInBytes * static_cast<uint64_t>(SensorType::LAST); |
+} |
+ |
+PlatformSensorProvider* SensorFactoryImpl::s_provider_ = nullptr; |
+ |
+// static |
+void SensorFactoryImpl::Create(mojo::InterfaceRequest<SensorFactory> request) { |
+ if (!s_provider_) |
+ s_provider_ = PlatformSensorProvider::Create(kSharedBufferSizeInBytes); |
+ |
+ if (s_provider_) { |
+ new SensorFactoryImpl(std::move(request)); |
+ } |
+} |
+ |
+SensorFactoryImpl::SensorFactoryImpl( |
+ mojo::InterfaceRequest<SensorFactory> request) |
+ : binding_(this, std::move(request)) {} |
+ |
+SensorFactoryImpl::~SensorFactoryImpl() {} |
+ |
+namespace { |
+ |
+void ReportError(const SensorFactory::CreateSensorCallback& callback) { |
+ callback.Run(Result::FAILURE, mojo::ScopedSharedBufferHandle(), 0, 0, |
+ ReportingMode::CONTINUOUS); |
+} |
+ |
+uint64_t GetBufferOffset(device::SensorType type) { |
+ return (static_cast<uint64_t>(SensorType::LAST) - |
+ static_cast<uint64_t>(type)) * |
+ kSensorReadingInBytes; |
+} |
+ |
+} // namespace |
+ |
+void SensorFactoryImpl::CreateSensor(SensorType type, |
+ SensorRequest sensor_request, |
+ const CreateSensorCallback& callback) { |
+ auto cloned_handle = s_provider_->GetClonedSharedBufferHandle(); |
+ if (!cloned_handle.is_valid()) { |
+ ReportError(callback); |
+ return; |
+ } |
+ |
+ device::SensorType sensor_type = mojo::ConvertTo<device::SensorType>(type); |
+ |
+ auto sensor = s_provider_->GetSensor(sensor_type); |
+ if (!sensor) |
+ sensor = s_provider_->CreateSensor(sensor_type, kSensorReadingInBytes, |
+ GetBufferOffset(sensor_type)); |
+ if (!sensor) { |
+ ReportError(callback); |
+ return; |
+ } |
+ |
+ new SensorImpl(std::move(sensor_request), sensor); |
+ |
+ callback.Run(Result::SUCCESS, std::move(cloned_handle), |
+ GetBufferOffset(sensor_type), kSensorReadingInBytes, |
+ mojo::ConvertTo<device::sensors::ReportingMode>( |
+ sensor->GetReportingMode())); |
+} |
+ |
+} // namespace sensors |
+} // namespace device |