chromium/base/task/thread_pool/pooled_single_thread_task_runner_manager.h

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef BASE_TASK_THREAD_POOL_POOLED_SINGLE_THREAD_TASK_RUNNER_MANAGER_H_
#define BASE_TASK_THREAD_POOL_POOLED_SINGLE_THREAD_TASK_RUNNER_MANAGER_H_

#include <memory>
#include <string>
#include <vector>

#include "base/base_export.h"
#include "base/memory/raw_ptr.h"
#include "base/task/common/checked_lock.h"
#include "base/task/single_thread_task_runner_thread_mode.h"
#include "base/task/thread_pool/environment_config.h"
#include "base/task/thread_pool/tracked_ref.h"
#include "base/thread_annotations.h"
#include "base/threading/platform_thread.h"
#include "build/build_config.h"

namespace base {

class TaskTraits;
class WorkerThreadObserver;
class SingleThreadTaskRunner;

namespace internal {

class DelayedTaskManager;
class WorkerThread;
class TaskTracker;

namespace {

class WorkerThreadDelegate;

}  // namespace

// Manages a group of threads which are each associated with one or more
// SingleThreadTaskRunners.
//
// SingleThreadTaskRunners using SingleThreadTaskRunnerThreadMode::SHARED are
// backed by shared WorkerThreads for each COM+task environment combination.
// These workers are lazily instantiated and then only reclaimed during
// JoinForTesting()
//
// No threads are created (and hence no tasks can run) before Start() is called.
//
// This class is thread-safe.
class BASE_EXPORT PooledSingleThreadTaskRunnerManager final { … };

}  // namespace internal
}  // namespace base

#endif  // BASE_TASK_THREAD_POOL_POOLED_SINGLE_THREAD_TASK_RUNNER_MANAGER_H_