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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 "content/browser/gamepad/gamepad_service.h" | 5 #include "content/browser/gamepad/gamepad_service.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 #include "base/memory/singleton.h" | 9 #include "base/memory/singleton.h" |
10 #include "content/browser/gamepad/gamepad_data_fetcher.h" | 10 #include "content/browser/gamepad/gamepad_data_fetcher.h" |
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28 GamepadService* GamepadService::GetInstance() { | 28 GamepadService* GamepadService::GetInstance() { |
29 return Singleton<GamepadService, | 29 return Singleton<GamepadService, |
30 LeakySingletonTraits<GamepadService> >::get(); | 30 LeakySingletonTraits<GamepadService> >::get(); |
31 } | 31 } |
32 | 32 |
33 void GamepadService::AddConsumer() { | 33 void GamepadService::AddConsumer() { |
34 DCHECK(thread_checker_.CalledOnValidThread()); | 34 DCHECK(thread_checker_.CalledOnValidThread()); |
35 | 35 |
36 num_readers_++; | 36 num_readers_++; |
37 DCHECK(num_readers_ > 0); | 37 DCHECK(num_readers_ > 0); |
38 if (!provider_.get()) | 38 if (!provider_) |
39 provider_.reset(new GamepadProvider); | 39 provider_.reset(new GamepadProvider); |
40 provider_->Resume(); | 40 provider_->Resume(); |
41 } | 41 } |
42 | 42 |
43 void GamepadService::RemoveConsumer() { | 43 void GamepadService::RemoveConsumer() { |
44 DCHECK(thread_checker_.CalledOnValidThread()); | 44 DCHECK(thread_checker_.CalledOnValidThread()); |
45 | 45 |
46 --num_readers_; | 46 --num_readers_; |
47 DCHECK(num_readers_ >= 0); | 47 DCHECK(num_readers_ >= 0); |
48 | 48 |
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60 provider_.reset(); | 60 provider_.reset(); |
61 } | 61 } |
62 | 62 |
63 base::SharedMemoryHandle GamepadService::GetSharedMemoryHandleForProcess( | 63 base::SharedMemoryHandle GamepadService::GetSharedMemoryHandleForProcess( |
64 base::ProcessHandle handle) { | 64 base::ProcessHandle handle) { |
65 DCHECK(thread_checker_.CalledOnValidThread()); | 65 DCHECK(thread_checker_.CalledOnValidThread()); |
66 return provider_->GetSharedMemoryHandleForProcess(handle); | 66 return provider_->GetSharedMemoryHandleForProcess(handle); |
67 } | 67 } |
68 | 68 |
69 } // namespace content | 69 } // namespace content |
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