| // Copyright 2015 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_SCHEDULER_BASE_VIRTUAL_TIME_DOMAIN_H_ |
| #define COMPONENTS_SCHEDULER_BASE_VIRTUAL_TIME_DOMAIN_H_ |
| |
| #include "base/callback.h" |
| #include "base/macros.h" |
| #include "components/scheduler/base/time_domain.h" |
| #include "components/scheduler/scheduler_export.h" |
| |
| namespace scheduler { |
| |
| class SCHEDULER_EXPORT VirtualTimeDomain : public TimeDomain { |
| public: |
| VirtualTimeDomain(TimeDomain::Observer* observer, |
| base::TimeTicks initial_time); |
| ~VirtualTimeDomain() override; |
| |
| // TimeDomain implementation: |
| LazyNow CreateLazyNow() const override; |
| base::TimeTicks Now() const override; |
| base::TimeTicks ComputeDelayedRunTime(base::TimeTicks time_domain_now, |
| base::TimeDelta delay) const override; |
| bool MaybeAdvanceTime() override; |
| const char* GetName() const override; |
| |
| // Advances this time domain to |now|. NOTE |now| is supposed to be |
| // monotonically increasing. NOTE it's the responsibility of the caller to |
| // call TaskQueueManager::MaybeScheduleImmediateWork if needed. |
| void AdvanceTo(base::TimeTicks now); |
| |
| using TimeDomain::ClearExpiredWakeups; |
| |
| protected: |
| void OnRegisterWithTaskQueueManager( |
| TaskQueueManager* task_queue_manager) override; |
| void RequestWakeup(base::TimeTicks now, base::TimeDelta delay) override; |
| void AsValueIntoInternal( |
| base::trace_event::TracedValue* state) const override; |
| |
| void RequestDoWork(); |
| |
| private: |
| mutable base::Lock lock_; // Protects |now_|. |
| base::TimeTicks now_; |
| |
| TaskQueueManager* task_queue_manager_; // NOT OWNED |
| base::Closure do_work_closure_; |
| |
| DISALLOW_COPY_AND_ASSIGN(VirtualTimeDomain); |
| }; |
| |
| } // namespace scheduler |
| |
| #endif // COMPONENTS_SCHEDULER_BASE_VIRTUAL_TIME_DOMAIN_H_ |