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Side by Side Diff: device/generic_sensor/platform_sensor_provider_base.cc

Issue 2878653002: Remove base::NonThreadSafe from //device/generic_sensor/ (Closed)
Patch Set: Remove base::NonThreadSafe from //device/generic_sensor/ Created 3 years, 7 months ago
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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_provider_base.h" 5 #include "device/generic_sensor/platform_sensor_provider_base.h"
6 6
7 #include <utility> 7 #include <utility>
8 8
9 #include "base/stl_util.h" 9 #include "base/stl_util.h"
10 #include "device/generic_sensor/public/interfaces/sensor_provider.mojom.h" 10 #include "device/generic_sensor/public/interfaces/sensor_provider.mojom.h"
11 11
12 namespace device { 12 namespace device {
13 13
14 namespace { 14 namespace {
15 15
16 const uint64_t kReadingBufferSize = sizeof(SensorReadingSharedBuffer); 16 const uint64_t kReadingBufferSize = sizeof(SensorReadingSharedBuffer);
17 const uint64_t kSharedBufferSizeInBytes = 17 const uint64_t kSharedBufferSizeInBytes =
18 kReadingBufferSize * static_cast<uint64_t>(mojom::SensorType::LAST); 18 kReadingBufferSize * static_cast<uint64_t>(mojom::SensorType::LAST);
19 19
20 } // namespace 20 } // namespace
21 21
22 PlatformSensorProviderBase::PlatformSensorProviderBase() = default; 22 PlatformSensorProviderBase::PlatformSensorProviderBase() = default;
23 PlatformSensorProviderBase::~PlatformSensorProviderBase() = default; 23
24 PlatformSensorProviderBase::~PlatformSensorProviderBase() {
25 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
26 }
24 27
25 void PlatformSensorProviderBase::CreateSensor( 28 void PlatformSensorProviderBase::CreateSensor(
26 mojom::SensorType type, 29 mojom::SensorType type,
27 const CreateSensorCallback& callback) { 30 const CreateSensorCallback& callback) {
28 DCHECK(CalledOnValidThread()); 31 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
29 32
30 if (!CreateSharedBufferIfNeeded()) { 33 if (!CreateSharedBufferIfNeeded()) {
31 callback.Run(nullptr); 34 callback.Run(nullptr);
32 return; 35 return;
33 } 36 }
34 37
35 mojo::ScopedSharedBufferMapping mapping = MapSharedBufferForType(type); 38 mojo::ScopedSharedBufferMapping mapping = MapSharedBufferForType(type);
36 if (!mapping) { 39 if (!mapping) {
37 callback.Run(nullptr); 40 callback.Run(nullptr);
38 return; 41 return;
39 } 42 }
40 43
41 auto it = requests_map_.find(type); 44 auto it = requests_map_.find(type);
42 if (it != requests_map_.end()) { 45 if (it != requests_map_.end()) {
43 it->second.push_back(callback); 46 it->second.push_back(callback);
44 } else { // This is the first CreateSensor call. 47 } else { // This is the first CreateSensor call.
45 requests_map_[type] = CallbackQueue({callback}); 48 requests_map_[type] = CallbackQueue({callback});
46 49
47 CreateSensorInternal( 50 CreateSensorInternal(
48 type, std::move(mapping), 51 type, std::move(mapping),
49 base::Bind(&PlatformSensorProviderBase::NotifySensorCreated, 52 base::Bind(&PlatformSensorProviderBase::NotifySensorCreated,
50 base::Unretained(this), type)); 53 base::Unretained(this), type));
51 } 54 }
52 } 55 }
53 56
54 scoped_refptr<PlatformSensor> PlatformSensorProviderBase::GetSensor( 57 scoped_refptr<PlatformSensor> PlatformSensorProviderBase::GetSensor(
55 mojom::SensorType type) { 58 mojom::SensorType type) {
56 DCHECK(CalledOnValidThread()); 59 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
57 60
58 auto it = sensor_map_.find(type); 61 auto it = sensor_map_.find(type);
59 if (it != sensor_map_.end()) 62 if (it != sensor_map_.end())
60 return it->second; 63 return it->second;
61 return nullptr; 64 return nullptr;
62 } 65 }
63 66
64 bool PlatformSensorProviderBase::CreateSharedBufferIfNeeded() { 67 bool PlatformSensorProviderBase::CreateSharedBufferIfNeeded() {
65 DCHECK(CalledOnValidThread()); 68 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
66 if (shared_buffer_handle_.is_valid()) 69 if (shared_buffer_handle_.is_valid())
67 return true; 70 return true;
68 71
69 shared_buffer_handle_ = 72 shared_buffer_handle_ =
70 mojo::SharedBufferHandle::Create(kSharedBufferSizeInBytes); 73 mojo::SharedBufferHandle::Create(kSharedBufferSizeInBytes);
71 return shared_buffer_handle_.is_valid(); 74 return shared_buffer_handle_.is_valid();
72 } 75 }
73 76
74 void PlatformSensorProviderBase::RemoveSensor(mojom::SensorType type) { 77 void PlatformSensorProviderBase::RemoveSensor(mojom::SensorType type) {
75 DCHECK(CalledOnValidThread()); 78 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
76 DCHECK(ContainsKey(sensor_map_, type)); 79 DCHECK(ContainsKey(sensor_map_, type));
77 sensor_map_.erase(type); 80 sensor_map_.erase(type);
78 81
79 if (sensor_map_.empty()) { 82 if (sensor_map_.empty()) {
80 AllSensorsRemoved(); 83 AllSensorsRemoved();
81 shared_buffer_handle_.reset(); 84 shared_buffer_handle_.reset();
82 } 85 }
83 } 86 }
84 87
85 mojo::ScopedSharedBufferHandle 88 mojo::ScopedSharedBufferHandle
86 PlatformSensorProviderBase::CloneSharedBufferHandle() { 89 PlatformSensorProviderBase::CloneSharedBufferHandle() {
87 DCHECK(CalledOnValidThread()); 90 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
88 CreateSharedBufferIfNeeded(); 91 CreateSharedBufferIfNeeded();
89 return shared_buffer_handle_->Clone( 92 return shared_buffer_handle_->Clone(
90 mojo::SharedBufferHandle::AccessMode::READ_ONLY); 93 mojo::SharedBufferHandle::AccessMode::READ_ONLY);
91 } 94 }
92 95
93 bool PlatformSensorProviderBase::HasSensors() const { 96 bool PlatformSensorProviderBase::HasSensors() const {
94 DCHECK(CalledOnValidThread()); 97 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
95 return !sensor_map_.empty(); 98 return !sensor_map_.empty();
96 } 99 }
97 100
98 void PlatformSensorProviderBase::NotifySensorCreated( 101 void PlatformSensorProviderBase::NotifySensorCreated(
99 mojom::SensorType type, 102 mojom::SensorType type,
100 scoped_refptr<PlatformSensor> sensor) { 103 scoped_refptr<PlatformSensor> sensor) {
101 DCHECK(CalledOnValidThread()); 104 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
102 DCHECK(!ContainsKey(sensor_map_, type)); 105 DCHECK(!ContainsKey(sensor_map_, type));
103 DCHECK(ContainsKey(requests_map_, type)); 106 DCHECK(ContainsKey(requests_map_, type));
104 107
105 if (sensor) 108 if (sensor)
106 sensor_map_[type] = sensor.get(); 109 sensor_map_[type] = sensor.get();
107 110
108 // Inform subscribers about the sensor. 111 // Inform subscribers about the sensor.
109 // |sensor| can be nullptr here. 112 // |sensor| can be nullptr here.
110 auto it = requests_map_.find(type); 113 auto it = requests_map_.find(type);
111 for (auto& callback : it->second) 114 for (auto& callback : it->second)
(...skipping 12 matching lines...) Expand all
124 127
125 mojo::ScopedSharedBufferMapping 128 mojo::ScopedSharedBufferMapping
126 PlatformSensorProviderBase::MapSharedBufferForType(mojom::SensorType type) { 129 PlatformSensorProviderBase::MapSharedBufferForType(mojom::SensorType type) {
127 mojo::ScopedSharedBufferMapping mapping = shared_buffer_handle_->MapAtOffset( 130 mojo::ScopedSharedBufferMapping mapping = shared_buffer_handle_->MapAtOffset(
128 kReadingBufferSize, SensorReadingSharedBuffer::GetOffset(type)); 131 kReadingBufferSize, SensorReadingSharedBuffer::GetOffset(type));
129 memset(mapping.get(), 0, kReadingBufferSize); 132 memset(mapping.get(), 0, kReadingBufferSize);
130 return mapping; 133 return mapping;
131 } 134 }
132 135
133 } // namespace device 136 } // namespace device
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