| // Copyright 2014 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 COMPONENTS_DOMAIN_RELIABILITY_DISPATCHER_H_ |
| #define COMPONENTS_DOMAIN_RELIABILITY_DISPATCHER_H_ |
| |
| #include <set> |
| |
| #include "base/callback_forward.h" |
| #include "base/time/time.h" |
| #include "components/domain_reliability/domain_reliability_export.h" |
| |
| namespace tracked_objects { |
| class Location; |
| } // namespace tracked_objects |
| |
| namespace domain_reliability { |
| |
| class MockableTime; |
| |
| // Runs tasks during a specified interval. Calling |RunEligibleTasks| gives any |
| // task a chance to run early (if the minimum delay has already passed); tasks |
| // that aren't run early will be run once their maximum delay has passed. |
| // |
| // (See scheduler.h for an explanation of how the intervals are chosen.) |
| class DOMAIN_RELIABILITY_EXPORT DomainReliabilityDispatcher { |
| public: |
| explicit DomainReliabilityDispatcher(MockableTime* time); |
| ~DomainReliabilityDispatcher(); |
| |
| // Schedules |task| to be executed between |min_delay| and |max_delay| from |
| // now. The task will be run at most |max_delay| from now; once |min_delay| |
| // has passed, any call to |RunEligibleTasks| will run the task earlier than |
| // that. |
| void ScheduleTask(const base::Closure& task, |
| base::TimeDelta min_delay, |
| base::TimeDelta max_delay); |
| |
| // Runs all tasks whose minimum delay has already passed. |
| void RunEligibleTasks(); |
| |
| private: |
| struct Task; |
| |
| // Adds |task| to the set of all tasks, but not the set of eligible tasks. |
| void MakeTaskWaiting(Task* task); |
| |
| // Adds |task| to the set of eligible tasks, and also the set of all tasks |
| // if not already there. |
| void MakeTaskEligible(Task* task); |
| |
| // Runs |task|'s callback, removes it from both sets, and deletes it. |
| void RunAndDeleteTask(Task* task); |
| |
| MockableTime* time_; |
| std::set<Task*> tasks_; |
| std::set<Task*> eligible_tasks_; |
| }; |
| |
| } // namespace domain_reliability |
| |
| #endif |