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// Copyright 2019 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.
#include "base/task/thread_pool.h"
#include "base/check.h"
#include "base/task/scoped_set_task_priority_for_current_thread.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool/thread_pool_impl.h"
#include "base/task/thread_pool/thread_pool_instance.h"
#include "base/threading/post_task_and_reply_impl.h"
#include "build/build_config.h"
namespace base {
namespace {
class PostTaskAndReplyWithTraitsTaskRunner
: public internal::PostTaskAndReplyImpl {
public:
explicit PostTaskAndReplyWithTraitsTaskRunner(const TaskTraits& traits)
: traits_(traits) {}
private:
bool PostTask(const Location& from_here, OnceClosure task) override {
ThreadPool::PostTask(from_here, traits_, std::move(task));
return true;
}
const TaskTraits traits_;
};
internal::ThreadPoolImpl* GetThreadPoolImpl() {
auto* instance = ThreadPoolInstance::Get();
DCHECK(instance)
<< "Ref. Prerequisite section of base/task/thread_pool.h.\n"
"Hint: if this is in a unit test, you're likely merely missing a "
"base::test::TaskEnvironment member in your fixture (or your fixture "
"is using a base::test::SingleThreadTaskEnvironment and now needs a "
"full base::test::TaskEnvironment).\n";
return static_cast<internal::ThreadPoolImpl*>(instance);
}
} // namespace
// static
bool ThreadPool::PostTask(const Location& from_here, OnceClosure task) {
return ThreadPool::PostDelayedTask(from_here, std::move(task), TimeDelta());
}
// static
bool ThreadPool::PostDelayedTask(const Location& from_here,
OnceClosure task,
TimeDelta delay) {
return ThreadPool::PostDelayedTask(from_here, {}, std::move(task), delay);
}
// static
bool ThreadPool::PostTaskAndReply(const Location& from_here,
OnceClosure task,
OnceClosure reply) {
return ThreadPool::PostTaskAndReply(from_here, {}, std::move(task),
std::move(reply));
}
// static
bool ThreadPool::PostTask(const Location& from_here,
const TaskTraits& traits,
OnceClosure task) {
return ThreadPool::PostDelayedTask(from_here, traits, std::move(task),
TimeDelta());
}
// static
bool ThreadPool::PostDelayedTask(const Location& from_here,
const TaskTraits& traits,
OnceClosure task,
TimeDelta delay) {
return GetThreadPoolImpl()->PostDelayedTask(from_here, traits,
std::move(task), delay);
}
// static
bool ThreadPool::PostTaskAndReply(const Location& from_here,
const TaskTraits& traits,
OnceClosure task,
OnceClosure reply) {
return PostTaskAndReplyWithTraitsTaskRunner(traits).PostTaskAndReply(
from_here, std::move(task), std::move(reply));
}
// static
scoped_refptr<TaskRunner> ThreadPool::CreateTaskRunner(
const TaskTraits& traits) {
return GetThreadPoolImpl()->CreateTaskRunner(traits);
}
// static
scoped_refptr<SequencedTaskRunner> ThreadPool::CreateSequencedTaskRunner(
const TaskTraits& traits) {
return GetThreadPoolImpl()->CreateSequencedTaskRunner(traits);
}
// static
scoped_refptr<UpdateableSequencedTaskRunner>
ThreadPool::CreateUpdateableSequencedTaskRunner(const TaskTraits& traits) {
return GetThreadPoolImpl()->CreateUpdateableSequencedTaskRunner(traits);
}
// static
scoped_refptr<SingleThreadTaskRunner> ThreadPool::CreateSingleThreadTaskRunner(
const TaskTraits& traits,
SingleThreadTaskRunnerThreadMode thread_mode) {
return GetThreadPoolImpl()->CreateSingleThreadTaskRunner(traits, thread_mode);
}
#if BUILDFLAG(IS_WIN)
// static
scoped_refptr<SingleThreadTaskRunner> ThreadPool::CreateCOMSTATaskRunner(
const TaskTraits& traits,
SingleThreadTaskRunnerThreadMode thread_mode) {
return GetThreadPoolImpl()->CreateCOMSTATaskRunner(traits, thread_mode);
}
#endif // BUILDFLAG(IS_WIN)
} // namespace base
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