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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 "device/generic_sensor/platform_sensor.h" | 5 #include "device/generic_sensor/platform_sensor.h" |
6 | 6 |
7 #include <utility> | 7 #include <utility> |
8 | 8 |
9 #include "base/threading/thread_task_runner_handle.h" | |
9 #include "device/generic_sensor/platform_sensor_provider.h" | 10 #include "device/generic_sensor/platform_sensor_provider.h" |
10 #include "device/generic_sensor/public/cpp/platform_sensor_configuration.h" | 11 #include "device/generic_sensor/public/cpp/platform_sensor_configuration.h" |
11 | 12 |
12 namespace device { | 13 namespace device { |
13 | 14 |
14 PlatformSensor::PlatformSensor(mojom::SensorType type, | 15 PlatformSensor::PlatformSensor( |
15 mojo::ScopedSharedBufferMapping mapping, | 16 mojom::SensorType type, |
16 PlatformSensorProvider* provider) | 17 mojo::ScopedSharedBufferMapping mapping, |
17 : shared_buffer_mapping_(std::move(mapping)), | 18 PlatformSensorProvider* provider, |
19 scoped_refptr<base::SingleThreadTaskRunner> task_runner) | |
20 : task_runner_(task_runner), | |
21 shared_buffer_mapping_(std::move(mapping)), | |
18 type_(type), | 22 type_(type), |
19 provider_(provider), | 23 provider_(provider), |
20 weak_factory_(this) {} | 24 weak_factory_(this) {} |
21 | 25 |
22 PlatformSensor::~PlatformSensor() { | 26 PlatformSensor::~PlatformSensor() { |
23 provider_->RemoveSensor(GetType()); | 27 provider_->RemoveSensor(GetType()); |
24 } | 28 } |
25 | 29 |
26 mojom::SensorType PlatformSensor::GetType() const { | 30 mojom::SensorType PlatformSensor::GetType() const { |
27 return type_; | 31 return type_; |
(...skipping 45 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
73 void PlatformSensor::RemoveClient(Client* client) { | 77 void PlatformSensor::RemoveClient(Client* client) { |
74 DCHECK(client); | 78 DCHECK(client); |
75 clients_.RemoveObserver(client); | 79 clients_.RemoveObserver(client); |
76 auto client_entry = config_map_.find(client); | 80 auto client_entry = config_map_.find(client); |
77 if (client_entry != config_map_.end()) { | 81 if (client_entry != config_map_.end()) { |
78 config_map_.erase(client_entry); | 82 config_map_.erase(client_entry); |
79 UpdateSensorInternal(config_map_); | 83 UpdateSensorInternal(config_map_); |
80 } | 84 } |
81 } | 85 } |
82 | 86 |
87 void PlatformSensor::UpdateSensorReading(const SensorReading& reading, | |
88 bool notify_clients) { | |
89 ReadingBuffer* buffer = | |
90 static_cast<ReadingBuffer*>(shared_buffer_mapping_.get()); | |
91 auto& seqlock = buffer->seqlock.value(); | |
92 seqlock.WriteBegin(); | |
93 buffer->reading = reading; | |
94 seqlock.WriteEnd(); | |
95 | |
96 if (notify_clients) | |
97 task_runner_->PostTask( | |
Ken Rockot(use gerrit already)
2016/10/10 16:02:08
I believe this is incorrect. The PlatformSensor in
Reilly Grant (use Gerrit)
2016/10/10 16:30:41
So far it looks like |task_runner_| is always the
Mikhail
2016/10/10 18:29:19
Right, |task_runner_| is PlatformSensor's native t
| |
98 FROM_HERE, base::Bind(&PlatformSensor::NotifySensorReadingChanged, | |
99 weak_factory_.GetWeakPtr())); | |
100 } | |
101 | |
83 void PlatformSensor::NotifySensorReadingChanged() { | 102 void PlatformSensor::NotifySensorReadingChanged() { |
84 using ClientsList = decltype(clients_); | 103 using ClientsList = decltype(clients_); |
85 ClientsList::Iterator it(&clients_); | 104 ClientsList::Iterator it(&clients_); |
86 Client* client; | 105 Client* client; |
87 while ((client = it.GetNext()) != nullptr) { | 106 while ((client = it.GetNext()) != nullptr) { |
88 if (!client->IsNotificationSuspended()) | 107 if (!client->IsNotificationSuspended()) |
89 client->OnSensorReadingChanged(); | 108 client->OnSensorReadingChanged(); |
90 } | 109 } |
91 } | 110 } |
92 | 111 |
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110 | 129 |
111 if (!optimal_configuration) { | 130 if (!optimal_configuration) { |
112 StopSensor(); | 131 StopSensor(); |
113 return true; | 132 return true; |
114 } | 133 } |
115 | 134 |
116 return StartSensor(*optimal_configuration); | 135 return StartSensor(*optimal_configuration); |
117 } | 136 } |
118 | 137 |
119 } // namespace device | 138 } // namespace device |
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