chromium/content/browser/browser_thread_impl.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_
#define CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_

#include "base/memory/scoped_refptr.h"
#include "base/task/single_thread_task_runner.h"
#include "build/build_config.h"
#include "content/common/content_export.h"
#include "content/public/browser/browser_thread.h"

#if BUILDFLAG(IS_POSIX)
#include <optional>

#include "base/files/file_descriptor_watcher_posix.h"
#endif

namespace content {

class BrowserMainLoop;
class BrowserProcessIOThread;
class TestBrowserThread;

// BrowserThreadImpl is a scoped object which maps a SingleThreadTaskRunner to a
// BrowserThread::ID. On ~BrowserThreadImpl() that ID enters a SHUTDOWN state
// (in which BrowserThread::IsThreadInitialized() returns false) but the mapping
// isn't undone to avoid shutdown races (the task runner is free to stop
// accepting tasks by then however).
//
// Very few users should use this directly. To mock BrowserThreads, tests should
// use BrowserTaskEnvironment instead.
class CONTENT_EXPORT BrowserThreadImpl : public BrowserThread { … };

}  // namespace content

#endif  // CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_