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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 COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_H_ | 5 #ifndef THIRD_PARTY_WEBKIT_PUBLIC_PLATFORM_SCHEDULER_BASE_TASK_QUEUE_H_ |
| 6 #define COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_H_ | 6 #define THIRD_PARTY_WEBKIT_PUBLIC_PLATFORM_SCHEDULER_BASE_TASK_QUEUE_H_ |
| 7 | 7 |
| 8 #include "base/macros.h" | 8 #include "base/macros.h" |
| 9 #include "base/message_loop/message_loop.h" | 9 #include "base/message_loop/message_loop.h" |
| 10 #include "base/single_thread_task_runner.h" | 10 #include "base/single_thread_task_runner.h" |
| 11 #include "base/trace_event/trace_event.h" | 11 #include "base/trace_event/trace_event.h" |
| 12 #include "components/scheduler/scheduler_export.h" | 12 #include "public/platform/WebCommon.h" |
| 13 | 13 |
| 14 namespace base { | 14 namespace base { |
| 15 namespace trace_event { | 15 namespace trace_event { |
| 16 class BlameContext; | 16 class BlameContext; |
| 17 } | 17 } |
| 18 } | 18 } |
| 19 | 19 |
| 20 namespace blink { |
| 20 namespace scheduler { | 21 namespace scheduler { |
| 21 class LazyNow; | 22 class LazyNow; |
| 22 class TimeDomain; | 23 class TimeDomain; |
| 23 | 24 |
| 24 class SCHEDULER_EXPORT TaskQueue : public base::SingleThreadTaskRunner { | 25 class BLINK_PLATFORM_EXPORT TaskQueue : public base::SingleThreadTaskRunner { |
| 25 public: | 26 public: |
| 26 TaskQueue() {} | 27 TaskQueue() {} |
| 27 | 28 |
| 28 // Unregisters the task queue after which no tasks posted to it will run and | 29 // Unregisters the task queue after which no tasks posted to it will run and |
| 29 // the TaskQueueManager's reference to it will be released soon. | 30 // the TaskQueueManager's reference to it will be released soon. |
| 30 virtual void UnregisterTaskQueue() = 0; | 31 virtual void UnregisterTaskQueue() = 0; |
| 31 | 32 |
| 32 enum QueuePriority { | 33 enum QueuePriority { |
| 33 // Queues with control priority will run before any other queue, and will | 34 // Queues with control priority will run before any other queue, and will |
| 34 // explicitly starve other queues. Typically this should only be used for | 35 // explicitly starve other queues. Typically this should only be used for |
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| 205 // Returns the queue's current TimeDomain. Can be called from any thread. | 206 // Returns the queue's current TimeDomain. Can be called from any thread. |
| 206 virtual TimeDomain* GetTimeDomain() const = 0; | 207 virtual TimeDomain* GetTimeDomain() const = 0; |
| 207 | 208 |
| 208 protected: | 209 protected: |
| 209 ~TaskQueue() override {} | 210 ~TaskQueue() override {} |
| 210 | 211 |
| 211 DISALLOW_COPY_AND_ASSIGN(TaskQueue); | 212 DISALLOW_COPY_AND_ASSIGN(TaskQueue); |
| 212 }; | 213 }; |
| 213 | 214 |
| 214 } // namespace scheduler | 215 } // namespace scheduler |
| 216 } // namespace blink |
| 215 | 217 |
| 216 #endif // COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_H_ | 218 #endif // THIRD_PARTY_WEBKIT_PUBLIC_PLATFORM_SCHEDULER_BASE_TASK_QUEUE_H_ |
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