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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // An implementation of WebThread in terms of base::MessageLoop and | 5 // An implementation of WebThread in terms of base::MessageLoop and |
| 6 // base::Thread | 6 // base::Thread |
| 7 | 7 |
| 8 #include "components/scheduler/child/webthread_base.h" | 8 #include "public/platform/scheduler/child/webthread_base.h" |
| 9 | 9 |
| 10 #include "base/bind.h" | 10 #include "base/bind.h" |
| 11 #include "base/bind_helpers.h" | 11 #include "base/bind_helpers.h" |
| 12 #include "base/memory/ptr_util.h" | 12 #include "base/memory/ptr_util.h" |
| 13 #include "base/pending_task.h" | 13 #include "base/pending_task.h" |
| 14 #include "base/threading/platform_thread.h" | 14 #include "base/threading/platform_thread.h" |
| 15 #include "components/scheduler/child/single_thread_idle_task_runner.h" | 15 #include "public/platform/scheduler/child/single_thread_idle_task_runner.h" |
| 16 #include "third_party/WebKit/public/platform/WebTraceLocation.h" | 16 #include "public/platform/WebTraceLocation.h" |
| 17 | 17 |
| 18 namespace blink { |
| 18 namespace scheduler { | 19 namespace scheduler { |
| 19 | 20 |
| 20 class WebThreadBase::TaskObserverAdapter | 21 class WebThreadBase::TaskObserverAdapter |
| 21 : public base::MessageLoop::TaskObserver { | 22 : public base::MessageLoop::TaskObserver { |
| 22 public: | 23 public: |
| 23 explicit TaskObserverAdapter(WebThread::TaskObserver* observer) | 24 explicit TaskObserverAdapter(WebThread::TaskObserver* observer) |
| 24 : observer_(observer) {} | 25 : observer_(observer) {} |
| 25 | 26 |
| 26 void WillProcessTask(const base::PendingTask& pending_task) override { | 27 void WillProcessTask(const base::PendingTask& pending_task) override { |
| 27 observer_->willProcessTask(); | 28 observer_->willProcessTask(); |
| 28 } | 29 } |
| 29 | 30 |
| 30 void DidProcessTask(const base::PendingTask& pending_task) override { | 31 void DidProcessTask(const base::PendingTask& pending_task) override { |
| 31 observer_->didProcessTask(); | 32 observer_->didProcessTask(); |
| 32 } | 33 } |
| 33 | 34 |
| 34 private: | 35 private: |
| 35 WebThread::TaskObserver* observer_; | 36 WebThread::TaskObserver* observer_; |
| 36 }; | 37 }; |
| 37 | 38 |
| 38 WebThreadBase::WebThreadBase() { | 39 WebThreadBase::WebThreadBase() {} |
| 39 } | |
| 40 | 40 |
| 41 WebThreadBase::~WebThreadBase() { | 41 WebThreadBase::~WebThreadBase() { |
| 42 for (auto& observer_entry : task_observer_map_) { | 42 for (auto& observer_entry : task_observer_map_) { |
| 43 delete observer_entry.second; | 43 delete observer_entry.second; |
| 44 } | 44 } |
| 45 } | 45 } |
| 46 | 46 |
| 47 void WebThreadBase::addTaskObserver(TaskObserver* observer) { | 47 void WebThreadBase::addTaskObserver(TaskObserver* observer) { |
| 48 CHECK(isCurrentThread()); | 48 CHECK(isCurrentThread()); |
| 49 std::pair<TaskObserverMap::iterator, bool> result = task_observer_map_.insert( | 49 std::pair<TaskObserverMap::iterator, bool> result = |
| 50 std::make_pair(observer, nullptr)); | 50 task_observer_map_.insert(std::make_pair(observer, nullptr)); |
| 51 if (result.second) | 51 if (result.second) |
| 52 result.first->second = new TaskObserverAdapter(observer); | 52 result.first->second = new TaskObserverAdapter(observer); |
| 53 AddTaskObserverInternal(result.first->second); | 53 AddTaskObserverInternal(result.first->second); |
| 54 } | 54 } |
| 55 | 55 |
| 56 void WebThreadBase::removeTaskObserver(TaskObserver* observer) { | 56 void WebThreadBase::removeTaskObserver(TaskObserver* observer) { |
| 57 CHECK(isCurrentThread()); | 57 CHECK(isCurrentThread()); |
| 58 TaskObserverMap::iterator iter = task_observer_map_.find(observer); | 58 TaskObserverMap::iterator iter = task_observer_map_.find(observer); |
| 59 if (iter == task_observer_map_.end()) | 59 if (iter == task_observer_map_.end()) |
| 60 return; | 60 return; |
| (...skipping 15 matching lines...) Expand all Loading... |
| 76 // static | 76 // static |
| 77 void WebThreadBase::RunWebThreadIdleTask( | 77 void WebThreadBase::RunWebThreadIdleTask( |
| 78 std::unique_ptr<blink::WebThread::IdleTask> idle_task, | 78 std::unique_ptr<blink::WebThread::IdleTask> idle_task, |
| 79 base::TimeTicks deadline) { | 79 base::TimeTicks deadline) { |
| 80 idle_task->run((deadline - base::TimeTicks()).InSecondsF()); | 80 idle_task->run((deadline - base::TimeTicks()).InSecondsF()); |
| 81 } | 81 } |
| 82 | 82 |
| 83 void WebThreadBase::postIdleTask(const blink::WebTraceLocation& location, | 83 void WebThreadBase::postIdleTask(const blink::WebTraceLocation& location, |
| 84 IdleTask* idle_task) { | 84 IdleTask* idle_task) { |
| 85 GetIdleTaskRunner()->PostIdleTask( | 85 GetIdleTaskRunner()->PostIdleTask( |
| 86 location, | 86 location, base::Bind(&WebThreadBase::RunWebThreadIdleTask, |
| 87 base::Bind(&WebThreadBase::RunWebThreadIdleTask, | 87 base::Passed(base::WrapUnique(idle_task)))); |
| 88 base::Passed(base::WrapUnique(idle_task)))); | |
| 89 } | 88 } |
| 90 | 89 |
| 91 void WebThreadBase::postIdleTaskAfterWakeup( | 90 void WebThreadBase::postIdleTaskAfterWakeup( |
| 92 const blink::WebTraceLocation& location, | 91 const blink::WebTraceLocation& location, |
| 93 IdleTask* idle_task) { | 92 IdleTask* idle_task) { |
| 94 GetIdleTaskRunner()->PostIdleTaskAfterWakeup( | 93 GetIdleTaskRunner()->PostIdleTaskAfterWakeup( |
| 95 location, | 94 location, base::Bind(&WebThreadBase::RunWebThreadIdleTask, |
| 96 base::Bind(&WebThreadBase::RunWebThreadIdleTask, | 95 base::Passed(base::WrapUnique(idle_task)))); |
| 97 base::Passed(base::WrapUnique(idle_task)))); | |
| 98 } | 96 } |
| 99 | 97 |
| 100 bool WebThreadBase::isCurrentThread() const { | 98 bool WebThreadBase::isCurrentThread() const { |
| 101 return GetTaskRunner()->BelongsToCurrentThread(); | 99 return GetTaskRunner()->BelongsToCurrentThread(); |
| 102 } | 100 } |
| 103 | 101 |
| 104 } // namespace scheduler | 102 } // namespace scheduler |
| 103 } // namespace blink |
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