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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #include <device/generic_sensor/platform_sensor_iio.h> | |
6 #include "base/message_loop/message_loop.h" | |
7 | |
8 namespace device { | |
9 | |
10 PlatformSensorIio::PlatformSensorIio( | |
Mikhail
2016/10/11 14:46:47
pls add thread checks to methods
Mikhail
2016/10/11 14:46:47
pls add thread check to methods
maksims (do not use this acc)
2016/10/14 12:31:45
Done.
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11 mojom::SensorType type, | |
12 mojo::ScopedSharedBufferMapping mapping, | |
13 PlatformSensorProvider* provider, | |
14 scoped_refptr<base::SingleThreadTaskRunner> polling_task_runner) | |
15 : PlatformSensor(type, std::move(mapping), provider), | |
16 polling_thread_task_runner_(polling_task_runner), | |
17 timer_(new base::RepeatingTimer()), | |
18 weak_factory_(this) {} | |
19 | |
20 PlatformSensorIio::~PlatformSensorIio() { | |
21 polling_thread_task_runner_->DeleteSoon(FROM_HERE, timer_); | |
22 } | |
23 | |
24 bool PlatformSensorIio::StartSensor( | |
25 const PlatformSensorConfiguration& configuration) { | |
26 return polling_thread_task_runner_->PostTask( | |
27 FROM_HERE, base::Bind(&PlatformSensorIio::BeginPoll, | |
28 weak_factory_.GetWeakPtr(), configuration)); | |
29 } | |
30 | |
31 void PlatformSensorIio::BeginPoll( | |
32 const PlatformSensorConfiguration& configuration) { | |
33 DCHECK(polling_thread_task_runner_->BelongsToCurrentThread()); | |
34 timer_->Start(FROM_HERE, base::TimeDelta::FromMicroseconds( | |
35 base::Time::kMicrosecondsPerSecond / | |
36 configuration.frequency()), | |
37 this, &PlatformSensorIio::UpdateReading); | |
38 } | |
39 | |
40 void PlatformSensorIio::StopSensor() { | |
41 polling_thread_task_runner_->PostTask( | |
42 FROM_HERE, base::Bind(&PlatformSensorIio::StopPoll, this)); | |
43 } | |
44 | |
45 void PlatformSensorIio::StopPoll() { | |
46 timer_->Stop(); | |
47 } | |
48 | |
49 void PlatformSensorIio::OnSensorReadFailed() { | |
50 StopSensor(); | |
Mikhail
2016/10/11 14:46:47
is it called on polling thread? if so, than just c
| |
51 task_runner_->PostTask(FROM_HERE, | |
52 base::Bind(&PlatformSensorIio::NotifySensorError, | |
53 weak_factory_.GetWeakPtr())); | |
54 } | |
55 | |
56 bool PlatformSensorIio::CheckSensorConfiguration( | |
57 const PlatformSensorConfiguration& configuration) { | |
58 DCHECK(task_runner_->BelongsToCurrentThread()); | |
59 return configuration.frequency() > 0 && | |
60 configuration.frequency() <= | |
61 mojom::SensorConfiguration::kMaxAllowedFrequency; | |
62 } | |
63 | |
64 } // namespace device | |
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