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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 #ifndef CHROME_COMMON_WORKER_THREAD_TICKER_H_ | 5 #ifndef CHROME_COMMON_WORKER_THREAD_TICKER_H_ |
| 6 #define CHROME_COMMON_WORKER_THREAD_TICKER_H_ | 6 #define CHROME_COMMON_WORKER_THREAD_TICKER_H_ |
| 7 | 7 |
| 8 #include <vector> | 8 #include <vector> |
| 9 | 9 |
| 10 #include "base/macros.h" |
| 10 #include "base/synchronization/lock.h" | 11 #include "base/synchronization/lock.h" |
| 11 #include "base/threading/thread.h" | 12 #include "base/threading/thread.h" |
| 12 | 13 |
| 13 // This class provides the following functionality: | 14 // This class provides the following functionality: |
| 14 // It invokes a set of registered handlers at periodic intervals in | 15 // It invokes a set of registered handlers at periodic intervals in |
| 15 // the context of an arbitrary worker thread. | 16 // the context of an arbitrary worker thread. |
| 16 // The timer runs on a separate thread, so it will run even if the current | 17 // The timer runs on a separate thread, so it will run even if the current |
| 17 // thread is hung. Similarly, the callbacks will be called on a separate | 18 // thread is hung. Similarly, the callbacks will be called on a separate |
| 18 // thread so they won't block the main thread. | 19 // thread so they won't block the main thread. |
| 19 class WorkerThreadTicker { | 20 class WorkerThreadTicker { |
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| 77 // The interval at which the callbacks are to be invoked | 78 // The interval at which the callbacks are to be invoked |
| 78 base::TimeDelta tick_interval_; | 79 base::TimeDelta tick_interval_; |
| 79 | 80 |
| 80 // A list that holds all registered callback interfaces | 81 // A list that holds all registered callback interfaces |
| 81 TickHandlerListType tick_handler_list_; | 82 TickHandlerListType tick_handler_list_; |
| 82 | 83 |
| 83 DISALLOW_COPY_AND_ASSIGN(WorkerThreadTicker); | 84 DISALLOW_COPY_AND_ASSIGN(WorkerThreadTicker); |
| 84 }; | 85 }; |
| 85 | 86 |
| 86 #endif // CHROME_COMMON_WORKER_THREAD_TICKER_H_ | 87 #endif // CHROME_COMMON_WORKER_THREAD_TICKER_H_ |
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