Index: device/generic_sensor/polling_platform_sensor.cc |
diff --git a/device/generic_sensor/polling_platform_sensor.cc b/device/generic_sensor/polling_platform_sensor.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..9d580a48026b3c7305c0589b17b35da83dd353f1 |
--- /dev/null |
+++ b/device/generic_sensor/polling_platform_sensor.cc |
@@ -0,0 +1,49 @@ |
+// 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/generic_sensor/polling_platform_sensor.h" |
+ |
+#include "base/message_loop/message_loop.h" |
+ |
+namespace device { |
+ |
+PollingPlatformSensor::PollingPlatformSensor( |
+ mojom::SensorType type, |
+ mojo::ScopedSharedBufferMapping mapping, |
+ PlatformSensorProvider* provider, |
+ scoped_refptr<base::SingleThreadTaskRunner> polling_thread_task_runner) |
+ : PlatformSensor(type, std::move(mapping), provider), |
+ polling_thread_task_runner_(std::move(polling_thread_task_runner)), |
+ ui_task_runner_(base::MessageLoop::current()->task_runner()) {} |
+ |
+PollingPlatformSensor::~PollingPlatformSensor() = default; |
+ |
+bool PollingPlatformSensor::StartSensor( |
+ const PlatformSensorConfiguration& configuration) { |
+ polling_thread_task_runner_->PostTask( |
+ FROM_HERE, |
+ base::Bind(&PollingPlatformSensor::BeginPoll, this, configuration)); |
+ return true; |
+} |
+ |
+void PollingPlatformSensor::BeginPoll( |
+ const PlatformSensorConfiguration& configuration) { |
+ DCHECK(polling_thread_task_runner_->BelongsToCurrentThread()); |
+ timer_.Start(FROM_HERE, base::TimeDelta::FromMicroseconds( |
maksims (do not use this acc)
2016/09/21 08:20:14
You cannot create timer on one thread and kill it
|
+ base::Time::kMicrosecondsPerSecond / |
+ configuration.frequency()), |
+ this, &PollingPlatformSensor::UpdateReading); |
+} |
+ |
+void PollingPlatformSensor::StopSensor() { |
+ polling_thread_task_runner_->PostTask( |
+ FROM_HERE, base::Bind(&PollingPlatformSensor::StopPoll, this)); |
+} |
+ |
+void PollingPlatformSensor::StopPoll() { |
+ DCHECK(polling_thread_task_runner_->BelongsToCurrentThread()); |
+ timer_.Stop(); |
+} |
+ |
+} // namespace device |