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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 #include "base/threading/worker_pool.h" | 5 #include "base/threading/worker_pool.h" |
| 6 | 6 |
| 7 #include <utility> | 7 #include <utility> |
| 8 | 8 |
| 9 #include "base/bind.h" | 9 #include "base/bind.h" |
| 10 #include "base/compiler_specific.h" | 10 #include "base/compiler_specific.h" |
| (...skipping 29 matching lines...) Expand all Loading... |
| 40 // | 40 // |
| 41 // Note that this class is RefCountedThreadSafe (inherited from TaskRunner). | 41 // Note that this class is RefCountedThreadSafe (inherited from TaskRunner). |
| 42 class WorkerPoolTaskRunner : public TaskRunner { | 42 class WorkerPoolTaskRunner : public TaskRunner { |
| 43 public: | 43 public: |
| 44 explicit WorkerPoolTaskRunner(bool tasks_are_slow); | 44 explicit WorkerPoolTaskRunner(bool tasks_are_slow); |
| 45 | 45 |
| 46 // TaskRunner implementation | 46 // TaskRunner implementation |
| 47 bool PostDelayedTask(const tracked_objects::Location& from_here, | 47 bool PostDelayedTask(const tracked_objects::Location& from_here, |
| 48 OnceClosure task, | 48 OnceClosure task, |
| 49 TimeDelta delay) override; | 49 TimeDelta delay) override; |
| 50 bool RunsTasksOnCurrentThread() const override; | 50 bool RunsTasksInCurrentSequence() const override; |
| 51 | 51 |
| 52 private: | 52 private: |
| 53 ~WorkerPoolTaskRunner() override; | 53 ~WorkerPoolTaskRunner() override; |
| 54 | 54 |
| 55 // Helper function for posting a delayed task. Asserts that the delay is | 55 // Helper function for posting a delayed task. Asserts that the delay is |
| 56 // zero because non-zero delays are not supported. | 56 // zero because non-zero delays are not supported. |
| 57 bool PostDelayedTaskAssertZeroDelay( | 57 bool PostDelayedTaskAssertZeroDelay( |
| 58 const tracked_objects::Location& from_here, | 58 const tracked_objects::Location& from_here, |
| 59 OnceClosure task, | 59 OnceClosure task, |
| 60 base::TimeDelta delay); | 60 base::TimeDelta delay); |
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| 71 WorkerPoolTaskRunner::~WorkerPoolTaskRunner() { | 71 WorkerPoolTaskRunner::~WorkerPoolTaskRunner() { |
| 72 } | 72 } |
| 73 | 73 |
| 74 bool WorkerPoolTaskRunner::PostDelayedTask( | 74 bool WorkerPoolTaskRunner::PostDelayedTask( |
| 75 const tracked_objects::Location& from_here, | 75 const tracked_objects::Location& from_here, |
| 76 OnceClosure task, | 76 OnceClosure task, |
| 77 TimeDelta delay) { | 77 TimeDelta delay) { |
| 78 return PostDelayedTaskAssertZeroDelay(from_here, std::move(task), delay); | 78 return PostDelayedTaskAssertZeroDelay(from_here, std::move(task), delay); |
| 79 } | 79 } |
| 80 | 80 |
| 81 bool WorkerPoolTaskRunner::RunsTasksOnCurrentThread() const { | 81 bool WorkerPoolTaskRunner::RunsTasksInCurrentSequence() const { |
| 82 return WorkerPool::RunsTasksOnCurrentThread(); | 82 return WorkerPool::RunsTasksOnCurrentThread(); |
| 83 } | 83 } |
| 84 | 84 |
| 85 bool WorkerPoolTaskRunner::PostDelayedTaskAssertZeroDelay( | 85 bool WorkerPoolTaskRunner::PostDelayedTaskAssertZeroDelay( |
| 86 const tracked_objects::Location& from_here, | 86 const tracked_objects::Location& from_here, |
| 87 OnceClosure task, | 87 OnceClosure task, |
| 88 base::TimeDelta delay) { | 88 base::TimeDelta delay) { |
| 89 DCHECK_EQ(delay.InMillisecondsRoundedUp(), 0) | 89 DCHECK_EQ(delay.InMillisecondsRoundedUp(), 0) |
| 90 << "WorkerPoolTaskRunner does not support non-zero delays"; | 90 << "WorkerPoolTaskRunner does not support non-zero delays"; |
| 91 return WorkerPool::PostTask(from_here, std::move(task), tasks_are_slow_); | 91 return WorkerPool::PostTask(from_here, std::move(task), tasks_are_slow_); |
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| 116 } | 116 } |
| 117 | 117 |
| 118 // static | 118 // static |
| 119 const scoped_refptr<TaskRunner>& | 119 const scoped_refptr<TaskRunner>& |
| 120 WorkerPool::GetTaskRunner(bool tasks_are_slow) { | 120 WorkerPool::GetTaskRunner(bool tasks_are_slow) { |
| 121 static auto* task_runner_holder = new TaskRunnerHolder(); | 121 static auto* task_runner_holder = new TaskRunnerHolder(); |
| 122 return task_runner_holder->taskrunners_[tasks_are_slow]; | 122 return task_runner_holder->taskrunners_[tasks_are_slow]; |
| 123 } | 123 } |
| 124 | 124 |
| 125 } // namespace base | 125 } // namespace base |
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