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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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/usb/usb_service.h" | 5 #include "device/usb/usb_service.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/feature_list.h" | 8 #include "base/feature_list.h" |
9 #include "base/location.h" | 9 #include "base/location.h" |
10 #include "base/memory/ptr_util.h" | 10 #include "base/memory/ptr_util.h" |
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36 | 36 |
37 void UsbService::Observer::OnDeviceRemoved(scoped_refptr<UsbDevice> device) { | 37 void UsbService::Observer::OnDeviceRemoved(scoped_refptr<UsbDevice> device) { |
38 } | 38 } |
39 | 39 |
40 void UsbService::Observer::OnDeviceRemovedCleanup( | 40 void UsbService::Observer::OnDeviceRemovedCleanup( |
41 scoped_refptr<UsbDevice> device) { | 41 scoped_refptr<UsbDevice> device) { |
42 } | 42 } |
43 | 43 |
44 void UsbService::Observer::WillDestroyUsbService() {} | 44 void UsbService::Observer::WillDestroyUsbService() {} |
45 | 45 |
| 46 // Declare storage for this constexpr. |
| 47 constexpr base::TaskTraits UsbService::kBlockingTaskTraits; |
| 48 |
46 // static | 49 // static |
47 std::unique_ptr<UsbService> UsbService::Create() { | 50 std::unique_ptr<UsbService> UsbService::Create() { |
48 #if defined(OS_ANDROID) | 51 #if defined(OS_ANDROID) |
49 return base::WrapUnique(new UsbServiceAndroid()); | 52 return base::WrapUnique(new UsbServiceAndroid()); |
50 #elif defined(USE_UDEV) | 53 #elif defined(USE_UDEV) |
51 return base::WrapUnique(new UsbServiceLinux()); | 54 return base::WrapUnique(new UsbServiceLinux()); |
52 #elif defined(OS_WIN) | 55 #elif defined(OS_WIN) |
53 if (base::FeatureList::IsEnabled(kNewUsbBackend)) | 56 if (base::FeatureList::IsEnabled(kNewUsbBackend)) |
54 return base::WrapUnique(new UsbServiceWin()); | 57 return base::WrapUnique(new UsbServiceWin()); |
55 else | 58 else |
56 return base::WrapUnique(new UsbServiceImpl()); | 59 return base::WrapUnique(new UsbServiceImpl()); |
57 #elif defined(OS_MACOSX) | 60 #elif defined(OS_MACOSX) |
58 return base::WrapUnique(new UsbServiceImpl()); | 61 return base::WrapUnique(new UsbServiceImpl()); |
59 #else | 62 #else |
60 return nullptr; | 63 return nullptr; |
61 #endif | 64 #endif |
62 } | 65 } |
63 | 66 |
64 // static | 67 // static |
65 scoped_refptr<base::SequencedTaskRunner> | 68 scoped_refptr<base::SequencedTaskRunner> |
66 UsbService::CreateBlockingTaskRunner() { | 69 UsbService::CreateBlockingTaskRunner() { |
67 return base::CreateSequencedTaskRunnerWithTraits( | 70 return base::CreateSequencedTaskRunnerWithTraits(kBlockingTaskTraits); |
68 {base::MayBlock(), base::TaskPriority::USER_VISIBLE, | |
69 base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN}); | |
70 } | 71 } |
71 | 72 |
72 UsbService::~UsbService() { | 73 UsbService::~UsbService() { |
73 #if DCHECK_IS_ON() | 74 #if DCHECK_IS_ON() |
74 DCHECK(did_shutdown_); | 75 DCHECK(did_shutdown_); |
75 #endif | 76 #endif |
76 for (const auto& map_entry : devices_) | 77 for (const auto& map_entry : devices_) |
77 map_entry.second->OnDisconnect(); | 78 map_entry.second->OnDisconnect(); |
78 for (auto& observer : observer_list_) | 79 for (auto& observer : observer_list_) |
79 observer.WillDestroyUsbService(); | 80 observer.WillDestroyUsbService(); |
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174 DCHECK(CalledOnValidThread()); | 175 DCHECK(CalledOnValidThread()); |
175 | 176 |
176 for (auto& observer : observer_list_) | 177 for (auto& observer : observer_list_) |
177 observer.OnDeviceRemoved(device); | 178 observer.OnDeviceRemoved(device); |
178 device->NotifyDeviceRemoved(); | 179 device->NotifyDeviceRemoved(); |
179 for (auto& observer : observer_list_) | 180 for (auto& observer : observer_list_) |
180 observer.OnDeviceRemovedCleanup(device); | 181 observer.OnDeviceRemovedCleanup(device); |
181 } | 182 } |
182 | 183 |
183 } // namespace device | 184 } // namespace device |
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