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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #ifndef BASE_SYNCHRONIZATION_WAITABLE_EVENT_WATCHER_H_ | 5 #ifndef BASE_SYNCHRONIZATION_WAITABLE_EVENT_WATCHER_H_ |
6 #define BASE_SYNCHRONIZATION_WAITABLE_EVENT_WATCHER_H_ | 6 #define BASE_SYNCHRONIZATION_WAITABLE_EVENT_WATCHER_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "build/build_config.h" | 9 #include "build/build_config.h" |
10 | 10 |
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108 WaitableEvent* GetWatchedEvent(); | 108 WaitableEvent* GetWatchedEvent(); |
109 | 109 |
110 // --------------------------------------------------------------------------- | 110 // --------------------------------------------------------------------------- |
111 // Return the delegate, or NULL if there is no delegate. | 111 // Return the delegate, or NULL if there is no delegate. |
112 // --------------------------------------------------------------------------- | 112 // --------------------------------------------------------------------------- |
113 Delegate* delegate() { | 113 Delegate* delegate() { |
114 return delegate_; | 114 return delegate_; |
115 } | 115 } |
116 | 116 |
117 private: | 117 private: |
118 WaitableEvent* event_; | |
119 | |
120 #if defined(OS_WIN) | 118 #if defined(OS_WIN) |
121 // --------------------------------------------------------------------------- | 119 // --------------------------------------------------------------------------- |
122 // The helper class exists because, if WaitableEventWatcher were to inherit | 120 // The helper class exists because, if WaitableEventWatcher were to inherit |
123 // from ObjectWatcher::Delegate, then it couldn't also have an inner class | 121 // from ObjectWatcher::Delegate, then it couldn't also have an inner class |
124 // called Delegate (at least on Windows). Thus this object exists to proxy | 122 // called Delegate (at least on Windows). Thus this object exists to proxy |
125 // the callback function | 123 // the callback function |
126 // --------------------------------------------------------------------------- | 124 // --------------------------------------------------------------------------- |
127 class ObjectWatcherHelper : public win::ObjectWatcher::Delegate { | 125 class ObjectWatcherHelper : public win::ObjectWatcher::Delegate { |
128 public: | 126 public: |
129 ObjectWatcherHelper(WaitableEventWatcher* watcher); | 127 ObjectWatcherHelper(WaitableEventWatcher* watcher); |
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147 // --------------------------------------------------------------------------- | 145 // --------------------------------------------------------------------------- |
148 virtual void WillDestroyCurrentMessageLoop(); | 146 virtual void WillDestroyCurrentMessageLoop(); |
149 | 147 |
150 MessageLoop* message_loop_; | 148 MessageLoop* message_loop_; |
151 scoped_refptr<Flag> cancel_flag_; | 149 scoped_refptr<Flag> cancel_flag_; |
152 AsyncWaiter* waiter_; | 150 AsyncWaiter* waiter_; |
153 AsyncCallbackTask* callback_task_; | 151 AsyncCallbackTask* callback_task_; |
154 scoped_refptr<WaitableEvent::WaitableEventKernel> kernel_; | 152 scoped_refptr<WaitableEvent::WaitableEventKernel> kernel_; |
155 #endif | 153 #endif |
156 | 154 |
| 155 WaitableEvent* event_; |
| 156 |
157 Delegate* delegate_; | 157 Delegate* delegate_; |
158 }; | 158 }; |
159 | 159 |
160 } // namespace base | 160 } // namespace base |
161 | 161 |
162 #endif // BASE_SYNCHRONIZATION_WAITABLE_EVENT_WATCHER_H_ | 162 #endif // BASE_SYNCHRONIZATION_WAITABLE_EVENT_WATCHER_H_ |
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