e7cdc5cd07
Note to QA: This CL is purely mechanical and shouldn't be blamed for future regressions on touched files. This is a follow-up to https://chromium-review.googlesource.com/c/chromium/src/+/2211138 which already removed all usage using content::BrowserThread. Hence this script now matches unqualified BrowserThread:: without risking having "content::" be selected as "traits_before" by the regex (ran on same revision as step #1). content:: is now always added if outside namespace content {} (deleting unused using content::BrowserThread; decls) Script @ https://crbug.com/1026641#c92 (will TBR fdoray@ post-review for mechanical change) TBR=fdoray@hchromium.org AX-Relnotes: n/a. Bug: 1026641 Change-Id: I51ae2f83eb17d19b54563fd9b4fc040d2aa0c948 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2212469 Commit-Queue: Gabriel Charette <gab@chromium.org> Reviewed-by: François Doray <fdoray@chromium.org> Cr-Commit-Position: refs/heads/master@{#772458}
81 lines
3.1 KiB
C++
81 lines
3.1 KiB
C++
// Copyright (c) 2012 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.
|
|
|
|
#ifndef CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_
|
|
#define CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_
|
|
|
|
#include "base/memory/scoped_refptr.h"
|
|
#include "base/single_thread_task_runner.h"
|
|
#include "build/build_config.h"
|
|
#include "content/common/content_export.h"
|
|
#include "content/public/browser/browser_thread.h"
|
|
|
|
#if defined(OS_POSIX)
|
|
#include "base/files/file_descriptor_watcher_posix.h"
|
|
#include "base/optional.h"
|
|
#endif
|
|
|
|
namespace content {
|
|
|
|
class BrowserMainLoop;
|
|
class BrowserProcessSubThread;
|
|
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 {
|
|
public:
|
|
~BrowserThreadImpl();
|
|
|
|
// Returns the thread name for |identifier|.
|
|
static const char* GetThreadName(BrowserThread::ID identifier);
|
|
|
|
// Resets globals for |identifier|. Used in tests to clear global state that
|
|
// would otherwise leak to the next test. Globals are not otherwise fully
|
|
// cleaned up in ~BrowserThreadImpl() as there are subtle differences between
|
|
// UNINITIALIZED and SHUTDOWN state (e.g. globals.task_runners are kept around
|
|
// on shutdown). Must be called after ~BrowserThreadImpl() for the given
|
|
// |identifier|.
|
|
static void ResetGlobalsForTesting(BrowserThread::ID identifier);
|
|
|
|
// Exposed for BrowserTaskExecutor. Other code should use
|
|
// GetUIThreadTaskRunner({/IO}).
|
|
using BrowserThread::GetTaskRunnerForThread;
|
|
|
|
private:
|
|
// Restrict instantiation to BrowserProcessSubThread as it performs important
|
|
// initialization that shouldn't be bypassed (except by BrowserMainLoop for
|
|
// the main thread).
|
|
friend class BrowserProcessSubThread;
|
|
friend class BrowserMainLoop;
|
|
// TestBrowserThread is also allowed to construct this when instantiating fake
|
|
// threads.
|
|
friend class TestBrowserThread;
|
|
|
|
// Binds |identifier| to |task_runner| for the browser_thread.h API. This
|
|
// needs to happen on the main thread before //content and embedders are
|
|
// kicked off and enabled to invoke the BrowserThread API from other threads.
|
|
BrowserThreadImpl(BrowserThread::ID identifier,
|
|
scoped_refptr<base::SingleThreadTaskRunner> task_runner);
|
|
|
|
// The identifier of this thread. Only one thread can exist with a given
|
|
// identifier at a given time.
|
|
ID identifier_;
|
|
|
|
#if defined(OS_POSIX)
|
|
// Allows usage of the FileDescriptorWatcher API on the UI thread.
|
|
base::Optional<base::FileDescriptorWatcher> file_descriptor_watcher_;
|
|
#endif
|
|
};
|
|
|
|
} // namespace content
|
|
|
|
#endif // CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_
|