[scheduler] Add WakeupBudgetPool.

third_party/WebKit/Source/platform/scheduler/renderer/cpu_time_budget_pool.h

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_BUDGET_POOL_H_
-#define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_BUDGET_POOL_H_
+#ifndef THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_CPU_TIME_BUDGET_POOL_H_
+#define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_CPU_TIME_BUDGET_POOL_H_
 
-#include <unordered_set>
+#include "platform/scheduler/renderer/budget_pool.h"
 
-#include "base/callback.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/optional.h"
 #include "base/time/time.h"
 #include "platform/scheduler/base/lazy_now.h"
 
-namespace base {
-namespace trace_event {
-class TracedValue;
-}
-}
-
 namespace blink {
 namespace scheduler {
 
-class TaskQueue;
-class BudgetPoolController;
-
-// BudgetPool represents a group of task queues which share a limit
-// on a resource. This limit applies when task queues are already throttled
-// by TaskQueueThrottler.
-class PLATFORM_EXPORT BudgetPool {
- public:
-  virtual ~BudgetPool();
-
-  const char* Name() const;
-
-  // Report task run time to the budget pool.
-  virtual void RecordTaskRunTime(base::TimeTicks start_time,
-                                 base::TimeTicks end_time) = 0;
-
-  // Retuns earliest time (can be in the past) when the next task can run.
-  virtual base::TimeTicks GetNextAllowedRunTime() = 0;
-
-  // Returns true at a task can be run immediately at the given time.
-  virtual bool HasEnoughBudgetToRun(base::TimeTicks now) = 0;
-
-  // Returns state for tracing.
-  virtual void AsValueInto(base::trace_event::TracedValue* state,
-                           base::TimeTicks now) const = 0;
-
-  // Adds |queue| to given pool. If the pool restriction does not allow
-  // a task to be run immediately and |queue| is throttled, |queue| becomes
-  // disabled.
-  void AddQueue(base::TimeTicks now, TaskQueue* queue);
-
-  // Removes |queue| from given pool. If it is throttled, it does not
-  // become enabled immediately, but a call to |PumpThrottledTasks|
-  // is scheduled.
-  void RemoveQueue(base::TimeTicks now, TaskQueue* queue);
-
-  // Enables this time budget pool. Queues from this pool will be
-  // throttled based on their run time.
-  void EnableThrottling(LazyNow* now);
-
-  // Disables with time budget pool. Queues from this pool will not be
-  // throttled based on their run time. A call to |PumpThrottledTasks|
-  // will be scheduled to enable this queues back again and respect
-  // timer alignment. Internal budget level will not regenerate with time.
-  void DisableThrottling(LazyNow* now);
-
-  bool IsThrottlingEnabled() const;
-
-  // All queues should be removed before calling Close().
-  void Close();
-
-  // Block all associated queues and schedule them to run when appropriate.
-  void BlockThrottledQueues(base::TimeTicks now);
-
- protected:
-  BudgetPool(const char* name, BudgetPoolController* budget_pool_controller);
-
-  const char* name_;  // NOT OWNED
-
-  BudgetPoolController* budget_pool_controller_;
-
-  std::unordered_set<TaskQueue*> associated_task_queues_;
-  bool is_enabled_;
-};
-
 // CPUTimeBudgetPool represents a collection of task queues which share a limit
 // on total cpu time.
 class PLATFORM_EXPORT CPUTimeBudgetPool : public BudgetPool {
  public:
   CPUTimeBudgetPool(const char* name,
                     BudgetPoolController* budget_pool_controller,
                     base::TimeTicks now);
 
   ~CPUTimeBudgetPool();
 
@@ skipping 34 matching lines @@
   // queues even if they are allowed to run with increased budget level.
   void GrantAdditionalBudget(base::TimeTicks now, base::TimeDelta budget_level);
 
   // Set callback which will be called every time when this budget pool
   // is throttled. Throttling duration (time until the queue is allowed
   // to run again) is passed as a parameter to callback.
   void SetReportingCallback(
       base::Callback<void(base::TimeDelta)> reporting_callback);
 
   // BudgetPool implementation:
-  void RecordTaskRunTime(base::TimeTicks start_time,
+  void RecordTaskRunTime(TaskQueue* queue,
+                         base::TimeTicks start_time,
                          base::TimeTicks end_time) final;
-  bool HasEnoughBudgetToRun(base::TimeTicks now) final;
-  base::TimeTicks GetNextAllowedRunTime() final;
+  bool CanRunTasksAt(base::TimeTicks moment, bool is_wake_up) const final;
+  base::TimeTicks GetNextAllowedRunTime(
+      base::TimeTicks desired_run_time) const final;
+  void OnQueueNextWakeUpChanged(TaskQueue* queue,
+                                base::TimeTicks now,
+                                base::TimeTicks desired_run_time) final;
+  void OnWakeUp(base::TimeTicks now) final;
   void AsValueInto(base::trace_event::TracedValue* state,
                    base::TimeTicks now) const final;
 
+ protected:
+  QueueBlockType GetBlockType() const final;
+
  private:
   FRIEND_TEST_ALL_PREFIXES(TaskQueueThrottlerTest, CPUTimeBudgetPool);
 
   // Advances |last_checkpoint_| to |now| if needed and recalculates
   // budget level.
   void Advance(base::TimeTicks now);
 
   // Increase |current_budget_level_| to satisfy max throttling duration
   // condition if necessary.
   // Decrease |current_budget_level_| to satisfy max budget level
@@ skipping 18 matching lines @@
   double cpu_percentage_;
 
   base::Callback<void(base::TimeDelta)> reporting_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(CPUTimeBudgetPool);
 };
 
 }  // namespace scheduler
 }  // namespace blink
 
-#endif  // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_BUDGET_POOL_H_
+#endif  // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_CPU_TIME_BUDGET_POOL_H_