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133 lines
5.0 KiB
133 lines
5.0 KiB
// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/task_scheduler/post_task.h"
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#include <utility>
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#include "base/logging.h"
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#include "base/task_scheduler/scoped_set_task_priority_for_current_thread.h"
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#include "base/task_scheduler/task_scheduler.h"
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#include "base/threading/post_task_and_reply_impl.h"
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namespace base {
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namespace {
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class PostTaskAndReplyWithTraitsTaskRunner
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: public internal::PostTaskAndReplyImpl {
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public:
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explicit PostTaskAndReplyWithTraitsTaskRunner(const TaskTraits& traits)
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: traits_(traits) {}
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private:
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bool PostTask(const Location& from_here, OnceClosure task) override {
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PostTaskWithTraits(from_here, traits_, std::move(task));
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return true;
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}
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const TaskTraits traits_;
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};
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// Returns TaskTraits based on |traits|. If TaskPriority hasn't been set
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// explicitly in |traits|, the returned TaskTraits have the current
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// TaskPriority.
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TaskTraits GetTaskTraitsWithExplicitPriority(const TaskTraits& traits) {
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if (traits.priority_set_explicitly())
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return traits;
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return TaskTraits::Override(traits,
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{internal::GetTaskPriorityForCurrentThread()});
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}
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} // namespace
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void PostTask(const Location& from_here, OnceClosure task) {
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PostDelayedTask(from_here, std::move(task), TimeDelta());
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}
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void PostDelayedTask(const Location& from_here,
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OnceClosure task,
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TimeDelta delay) {
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PostDelayedTaskWithTraits(from_here, TaskTraits(), std::move(task), delay);
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}
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void PostTaskAndReply(const Location& from_here,
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OnceClosure task,
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OnceClosure reply) {
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PostTaskWithTraitsAndReply(from_here, TaskTraits(), std::move(task),
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std::move(reply));
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}
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void PostTaskWithTraits(const Location& from_here,
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const TaskTraits& traits,
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OnceClosure task) {
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PostDelayedTaskWithTraits(from_here, traits, std::move(task), TimeDelta());
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}
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void PostDelayedTaskWithTraits(const Location& from_here,
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const TaskTraits& traits,
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OnceClosure task,
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TimeDelta delay) {
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DCHECK(TaskScheduler::GetInstance())
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<< "Ref. Prerequisite section of post_task.h.\n\n"
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"Hint: if this is in a unit test, you're likely merely missing a "
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"base::test::ScopedTaskEnvironment member in your fixture.\n";
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TaskScheduler::GetInstance()->PostDelayedTaskWithTraits(
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from_here, GetTaskTraitsWithExplicitPriority(traits), std::move(task),
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std::move(delay));
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}
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void PostTaskWithTraitsAndReply(const Location& from_here,
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const TaskTraits& traits,
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OnceClosure task,
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OnceClosure reply) {
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PostTaskAndReplyWithTraitsTaskRunner(traits).PostTaskAndReply(
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from_here, std::move(task), std::move(reply));
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}
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scoped_refptr<TaskRunner> CreateTaskRunnerWithTraits(const TaskTraits& traits) {
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DCHECK(TaskScheduler::GetInstance())
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<< "Ref. Prerequisite section of post_task.h.\n\n"
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"Hint: if this is in a unit test, you're likely merely missing a "
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"base::test::ScopedTaskEnvironment member in your fixture.\n";
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return TaskScheduler::GetInstance()->CreateTaskRunnerWithTraits(
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GetTaskTraitsWithExplicitPriority(traits));
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}
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scoped_refptr<SequencedTaskRunner> CreateSequencedTaskRunnerWithTraits(
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const TaskTraits& traits) {
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DCHECK(TaskScheduler::GetInstance())
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<< "Ref. Prerequisite section of post_task.h.\n\n"
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"Hint: if this is in a unit test, you're likely merely missing a "
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"base::test::ScopedTaskEnvironment member in your fixture.\n";
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return TaskScheduler::GetInstance()->CreateSequencedTaskRunnerWithTraits(
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GetTaskTraitsWithExplicitPriority(traits));
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}
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scoped_refptr<SingleThreadTaskRunner> CreateSingleThreadTaskRunnerWithTraits(
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const TaskTraits& traits,
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SingleThreadTaskRunnerThreadMode thread_mode) {
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DCHECK(TaskScheduler::GetInstance())
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<< "Ref. Prerequisite section of post_task.h.\n\n"
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"Hint: if this is in a unit test, you're likely merely missing a "
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"base::test::ScopedTaskEnvironment member in your fixture.\n";
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return TaskScheduler::GetInstance()->CreateSingleThreadTaskRunnerWithTraits(
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GetTaskTraitsWithExplicitPriority(traits), thread_mode);
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}
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#if defined(OS_WIN)
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scoped_refptr<SingleThreadTaskRunner> CreateCOMSTATaskRunnerWithTraits(
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const TaskTraits& traits,
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SingleThreadTaskRunnerThreadMode thread_mode) {
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DCHECK(TaskScheduler::GetInstance())
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<< "Ref. Prerequisite section of post_task.h.\n\n"
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"Hint: if this is in a unit test, you're likely merely missing a "
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"base::test::ScopedTaskEnvironment member in your fixture.\n";
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return TaskScheduler::GetInstance()->CreateCOMSTATaskRunnerWithTraits(
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GetTaskTraitsWithExplicitPriority(traits), thread_mode);
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}
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#endif // defined(OS_WIN)
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} // namespace base
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