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| 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 |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_ |
| 6 #define COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_ |
| 7 |
| 8 #include "base/callback.h" |
| 9 #include "base/macros.h" |
| 10 #include "base/message_loop/message_loop.h" |
| 11 #include "base/time/tick_clock.h" |
| 12 #include "components/scheduler/scheduler_export.h" |
| 13 |
| 14 namespace scheduler { |
| 15 |
| 16 class SCHEDULER_EXPORT TaskQueueManagerDelegate |
| 17 : public base::SingleThreadTaskRunner, |
| 18 public base::TickClock { |
| 19 public: |
| 20 TaskQueueManagerDelegate() {} |
| 21 |
| 22 // Returns true if the task runner is nested (i.e., running a run loop within |
| 23 // a nested task). |
| 24 virtual bool IsNested() const = 0; |
| 25 |
| 26 // Used by the TaskQueueManager to tell us there is no more non-delayed work |
| 27 // to do. |
| 28 // TODO(alexclarke): Try and find a better interface that avoids the need for |
| 29 // this. |
| 30 virtual void OnNoMoreImmediateWork() = 0; |
| 31 |
| 32 protected: |
| 33 ~TaskQueueManagerDelegate() override {} |
| 34 |
| 35 DISALLOW_COPY_AND_ASSIGN(TaskQueueManagerDelegate); |
| 36 }; |
| 37 |
| 38 } // namespace scheduler |
| 39 |
| 40 #endif // COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_ |
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