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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 #ifndef THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TIME_DOMAIN_H_ | 5 #ifndef THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TIME_DOMAIN_H_ |
6 #define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TIME_DOMAIN_H_ | 6 #define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TIME_DOMAIN_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 | 9 |
10 #include "base/callback.h" | 10 #include "base/callback.h" |
11 #include "base/logging.h" | 11 #include "base/logging.h" |
12 #include "base/macros.h" | 12 #include "base/macros.h" |
13 #include "base/memory/ref_counted.h" | 13 #include "base/memory/ref_counted.h" |
14 #include "base/memory/weak_ptr.h" | 14 #include "base/memory/weak_ptr.h" |
15 #include "base/time/time.h" | 15 #include "base/time/time.h" |
16 #include "platform/scheduler/base/intrusive_heap.h" | 16 #include "platform/scheduler/base/intrusive_heap.h" |
17 #include "platform/scheduler/base/lazy_now.h" | 17 #include "platform/scheduler/base/lazy_now.h" |
18 #include "platform/scheduler/base/task_queue_impl.h" | 18 #include "platform/scheduler/base/task_queue_impl.h" |
19 | 19 |
20 namespace blink { | 20 namespace blink { |
21 namespace scheduler { | 21 namespace scheduler { |
22 namespace internal { | 22 namespace internal { |
23 class TaskQueueImpl; | 23 class TaskQueueImpl; |
24 } // internal | 24 } // internal |
25 class TaskQueueManager; | 25 class TaskQueueManager; |
26 class TaskQueueManagerDelegate; | |
27 | 26 |
28 // The TimeDomain's job is to wake task queues up when their next delayed tasks | 27 // The TimeDomain's job is to wake task queues up when their next delayed tasks |
29 // are due to fire. TaskQueues request a wake up via ScheduleDelayedWork, when | 28 // are due to fire. TaskQueues request a wake up via ScheduleDelayedWork, when |
30 // the wake up is due the TimeDomain calls TaskQueue::WakeUpForDelayedWork. | 29 // the wake up is due the TimeDomain calls TaskQueue::WakeUpForDelayedWork. |
31 // The TimeDomain communicates with the TaskQueueManager to actually schedule | 30 // The TimeDomain communicates with the TaskQueueManager to actually schedule |
32 // the wake-ups on the underlying base::MessageLoop. Various levels of de-duping | 31 // the wake-ups on the underlying base::MessageLoop. Various levels of de-duping |
33 // are employed to prevent unnecessary posting of TaskQueueManager::DoWork. | 32 // are employed to prevent unnecessary posting of TaskQueueManager::DoWork. |
34 // | 33 // |
35 // Note the TimeDomain only knows about the first wakeup per queue, it's the | 34 // Note the TimeDomain only knows about the first wakeup per queue, it's the |
36 // responsibility of TaskQueueImpl to keep the time domain up to date if this | 35 // responsibility of TaskQueueImpl to keep the time domain up to date if this |
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178 | 177 |
179 base::ThreadChecker main_thread_checker_; | 178 base::ThreadChecker main_thread_checker_; |
180 | 179 |
181 DISALLOW_COPY_AND_ASSIGN(TimeDomain); | 180 DISALLOW_COPY_AND_ASSIGN(TimeDomain); |
182 }; | 181 }; |
183 | 182 |
184 } // namespace scheduler | 183 } // namespace scheduler |
185 } // namespace blink | 184 } // namespace blink |
186 | 185 |
187 #endif // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TIME_DOMAIN_H_ | 186 #endif // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TIME_DOMAIN_H_ |
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