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| 1 // Copyright 2017 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 THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_WAKE_UP_BUDGET_POO
L_H_ |
| 6 #define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_WAKE_UP_BUDGET_POO
L_H_ |
| 7 |
| 8 #include "platform/scheduler/renderer/budget_pool.h" |
| 9 |
| 10 #include "base/macros.h" |
| 11 #include "base/optional.h" |
| 12 #include "base/time/time.h" |
| 13 #include "platform/scheduler/base/lazy_now.h" |
| 14 |
| 15 namespace blink { |
| 16 namespace scheduler { |
| 17 |
| 18 // WakeUpBudgetPool represents a collection of task queues which share a limit |
| 19 // on total cpu time. |
| 20 class BLINK_PLATFORM_EXPORT WakeUpBudgetPool : public BudgetPool { |
| 21 public: |
| 22 WakeUpBudgetPool(const char* name, |
| 23 BudgetPoolController* budget_pool_controller, |
| 24 base::TimeTicks now); |
| 25 ~WakeUpBudgetPool() override; |
| 26 |
| 27 // Note: this does not have an immediate effect and should be called only |
| 28 // during initialization of a WakeUpBudgetPool. |
| 29 void SetWakeUpRate(double wakeups_per_second); |
| 30 |
| 31 // Note: this does not have an immediate effect and should be called only |
| 32 // during initialization of a WakeUpBudgetPool. |
| 33 void SetWakeUpDuration(base::TimeDelta duration); |
| 34 |
| 35 // BudgetPool implementation: |
| 36 void RecordTaskRunTime(TaskQueue* queue, |
| 37 base::TimeTicks start_time, |
| 38 base::TimeTicks end_time) final; |
| 39 bool CanRunTasksUntil(base::TimeTicks now, |
| 40 base::TimeTicks moment) const final; |
| 41 bool CanRunTasksAt(base::TimeTicks now, bool is_wake_up) const final; |
| 42 base::TimeTicks GetNextAllowedRunTime( |
| 43 base::TimeTicks desired_run_time) const final; |
| 44 void OnQueueNextWakeUpChanged(TaskQueue* queue, |
| 45 base::TimeTicks now, |
| 46 base::TimeTicks desired_run_time) final; |
| 47 void OnWakeUp(base::TimeTicks now) final; |
| 48 void AsValueInto(base::trace_event::TracedValue* state, |
| 49 base::TimeTicks now) const final; |
| 50 |
| 51 protected: |
| 52 QueueBlockType GetBlockType() const final; |
| 53 |
| 54 private: |
| 55 base::Optional<base::TimeTicks> NextWakeUp() const; |
| 56 |
| 57 double wakeups_per_second_; |
| 58 base::TimeDelta wakeup_duration_; |
| 59 |
| 60 base::Optional<base::TimeTicks> last_wakeup_; |
| 61 |
| 62 DISALLOW_COPY_AND_ASSIGN(WakeUpBudgetPool); |
| 63 }; |
| 64 |
| 65 } // namespace scheduler |
| 66 } // namespace blink |
| 67 |
| 68 #endif // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_WAKE_UP_BUDGET_
POOL_H_ |
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