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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 <cmath> | 5 #include <cmath> |
| 6 #include <set> | 6 #include <set> |
| 7 #include <vector> | 7 #include <vector> |
| 8 | 8 |
| 9 #include "base/bind.h" | 9 #include "base/bind.h" |
| 10 #include "base/logging.h" | 10 #include "base/logging.h" |
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| 151 void GamepadProvider::DoPoll() { | 151 void GamepadProvider::DoPoll() { |
| 152 DCHECK(base::MessageLoop::current() == polling_thread_->message_loop()); | 152 DCHECK(base::MessageLoop::current() == polling_thread_->message_loop()); |
| 153 DCHECK(have_scheduled_do_poll_); | 153 DCHECK(have_scheduled_do_poll_); |
| 154 have_scheduled_do_poll_ = false; | 154 have_scheduled_do_poll_ = false; |
| 155 | 155 |
| 156 bool changed; | 156 bool changed; |
| 157 GamepadHardwareBuffer* hwbuf = SharedMemoryAsHardwareBuffer(); | 157 GamepadHardwareBuffer* hwbuf = SharedMemoryAsHardwareBuffer(); |
| 158 | 158 |
| 159 ANNOTATE_BENIGN_RACE_SIZED( | 159 ANNOTATE_BENIGN_RACE_SIZED( |
| 160 &hwbuf->buffer, | 160 &hwbuf->buffer, |
| 161 sizeof(WebKit::WebGamepads), | 161 sizeof(blink::WebGamepads), |
| 162 "Racey reads are discarded"); | 162 "Racey reads are discarded"); |
| 163 | 163 |
| 164 { | 164 { |
| 165 base::AutoLock lock(devices_changed_lock_); | 165 base::AutoLock lock(devices_changed_lock_); |
| 166 changed = devices_changed_; | 166 changed = devices_changed_; |
| 167 devices_changed_ = false; | 167 devices_changed_ = false; |
| 168 } | 168 } |
| 169 | 169 |
| 170 // Acquire the SeqLock. There is only ever one writer to this data. | 170 // Acquire the SeqLock. There is only ever one writer to this data. |
| 171 // See gamepad_hardware_buffer.h. | 171 // See gamepad_hardware_buffer.h. |
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| 211 if (GamepadsHaveUserGesture(SharedMemoryAsHardwareBuffer()->buffer)) { | 211 if (GamepadsHaveUserGesture(SharedMemoryAsHardwareBuffer()->buffer)) { |
| 212 for (size_t i = 0; i < user_gesture_observers_.size(); i++) { | 212 for (size_t i = 0; i < user_gesture_observers_.size(); i++) { |
| 213 user_gesture_observers_[i].message_loop->PostTask(FROM_HERE, | 213 user_gesture_observers_[i].message_loop->PostTask(FROM_HERE, |
| 214 user_gesture_observers_[i].closure); | 214 user_gesture_observers_[i].closure); |
| 215 } | 215 } |
| 216 user_gesture_observers_.clear(); | 216 user_gesture_observers_.clear(); |
| 217 } | 217 } |
| 218 } | 218 } |
| 219 | 219 |
| 220 } // namespace content | 220 } // namespace content |
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