Index: device/generic_sensor/platform_sensor_mac.cc |
diff --git a/device/generic_sensor/platform_sensor_mac.cc b/device/generic_sensor/platform_sensor_mac.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..ae1bf882c730ca9f5fcc94d969b3c48cda2e855a |
--- /dev/null |
+++ b/device/generic_sensor/platform_sensor_mac.cc |
@@ -0,0 +1,52 @@ |
+// 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/platform_sensor_mac.h" |
+ |
+#include "base/message_loop/message_loop.h" |
+ |
+namespace device { |
+ |
+PlatformSensorMac::PlatformSensorMac( |
+ mojom::SensorType type, |
+ mojo::ScopedSharedBufferMapping mapping, |
+ PlatformSensorProvider* provider, |
+ const scoped_refptr<base::SingleThreadTaskRunner>& |
+ polling_thread_task_runner) |
+ : PlatformSensor(type, std::move(mapping), provider), |
+ polling_thread_task_runner_(polling_thread_task_runner), |
+ ui_task_runner_(base::MessageLoop::current()->task_runner()) {} |
+ |
+PlatformSensorMac::~PlatformSensorMac() { |
+ timer_.reset(); |
Mikhail
2016/09/16 16:23:54
won't it get reset automatically when deleted?
|
+} |
+ |
+bool PlatformSensorMac::StartSensor( |
+ const PlatformSensorConfiguration& configuration) { |
+ polling_thread_task_runner_->PostTask( |
+ FROM_HERE, base::Bind(&PlatformSensorMac::BeginPoll, |
+ base::Unretained(this), configuration)); |
+ return true; |
+} |
+ |
+void PlatformSensorMac::BeginPoll( |
+ const PlatformSensorConfiguration& configuration) { |
Mikhail
2016/09/16 16:23:54
DCHECK to make sure this is a polling thread would
|
+ timer_.reset(new base::RepeatingTimer()); |
+ timer_->Start(FROM_HERE, base::TimeDelta::FromMicroseconds( |
+ base::Time::kMicrosecondsPerSecond / |
+ configuration.frequency()), |
+ this, &PlatformSensorMac::UpdateReading); |
+} |
+ |
+void PlatformSensorMac::StopSensor() { |
+ polling_thread_task_runner_->PostTask( |
+ FROM_HERE, |
+ base::Bind(&PlatformSensorMac::StopPoll, base::Unretained(this))); |
Mikhail
2016/09/16 16:23:54
base::Unretained(this) can lead to raise condition
|
+} |
+ |
+void PlatformSensorMac::StopPoll() { |
+ timer_.reset(); |
+} |
+ |
+} // namespace device |