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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 #include "components/scheduler/test/lazy_scheduler_message_loop_delegate_for_tes
ts.h" |
| 6 |
| 7 namespace scheduler { |
| 8 |
| 9 // static |
| 10 scoped_refptr<LazySchedulerMessageLoopDelegateForTests> |
| 11 LazySchedulerMessageLoopDelegateForTests::Create() { |
| 12 return make_scoped_refptr(new LazySchedulerMessageLoopDelegateForTests()); |
| 13 } |
| 14 |
| 15 LazySchedulerMessageLoopDelegateForTests:: |
| 16 LazySchedulerMessageLoopDelegateForTests() |
| 17 : message_loop_(base::MessageLoop::current()), |
| 18 thread_id_(base::PlatformThread::CurrentId()) { |
| 19 } |
| 20 |
| 21 LazySchedulerMessageLoopDelegateForTests:: |
| 22 ~LazySchedulerMessageLoopDelegateForTests() { |
| 23 } |
| 24 |
| 25 base::MessageLoop* LazySchedulerMessageLoopDelegateForTests::EnsureMessageLoop() |
| 26 const { |
| 27 if (message_loop_) |
| 28 return message_loop_; |
| 29 DCHECK(RunsTasksOnCurrentThread()); |
| 30 message_loop_ = base::MessageLoop::current(); |
| 31 DCHECK(message_loop_); |
| 32 for (auto& observer : pending_observers_) { |
| 33 message_loop_->AddTaskObserver(observer); |
| 34 } |
| 35 pending_observers_.clear(); |
| 36 return message_loop_; |
| 37 } |
| 38 |
| 39 bool LazySchedulerMessageLoopDelegateForTests::HasMessageLoop() const { |
| 40 return message_loop_ != nullptr; |
| 41 } |
| 42 |
| 43 bool LazySchedulerMessageLoopDelegateForTests::PostDelayedTask( |
| 44 const tracked_objects::Location& from_here, |
| 45 const base::Closure& task, |
| 46 base::TimeDelta delay) { |
| 47 return EnsureMessageLoop()->task_runner()->PostDelayedTask(from_here, task, |
| 48 delay); |
| 49 } |
| 50 |
| 51 bool LazySchedulerMessageLoopDelegateForTests::PostNonNestableDelayedTask( |
| 52 const tracked_objects::Location& from_here, |
| 53 const base::Closure& task, |
| 54 base::TimeDelta delay) { |
| 55 return EnsureMessageLoop()->task_runner()->PostNonNestableDelayedTask( |
| 56 from_here, task, delay); |
| 57 } |
| 58 |
| 59 bool LazySchedulerMessageLoopDelegateForTests::RunsTasksOnCurrentThread() |
| 60 const { |
| 61 return thread_id_ == base::PlatformThread::CurrentId(); |
| 62 } |
| 63 |
| 64 bool LazySchedulerMessageLoopDelegateForTests::IsNested() const { |
| 65 return EnsureMessageLoop()->IsNested(); |
| 66 } |
| 67 |
| 68 void LazySchedulerMessageLoopDelegateForTests::AddTaskObserver( |
| 69 base::MessageLoop::TaskObserver* task_observer) { |
| 70 if (!HasMessageLoop()) { |
| 71 pending_observers_.insert(task_observer); |
| 72 return; |
| 73 } |
| 74 EnsureMessageLoop()->AddTaskObserver(task_observer); |
| 75 } |
| 76 |
| 77 void LazySchedulerMessageLoopDelegateForTests::RemoveTaskObserver( |
| 78 base::MessageLoop::TaskObserver* task_observer) { |
| 79 if (!HasMessageLoop()) { |
| 80 pending_observers_.erase(task_observer); |
| 81 return; |
| 82 } |
| 83 EnsureMessageLoop()->RemoveTaskObserver(task_observer); |
| 84 } |
| 85 |
| 86 } // namespace scheduler |
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