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// 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 BASE_FILES_FILE_UTIL_PROXY_H_
#define BASE_FILES_FILE_UTIL_PROXY_H_
#include "base/base_export.h"
#include "base/callback_forward.h"
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/macros.h"
namespace base {
class TaskRunner;
class Time;
// This class provides asynchronous access to common file routines.
class BASE_EXPORT FileUtilProxy {
public:
// This callback is used by methods that report only an error code. It is
// valid to pass a null callback to any function that takes a StatusCallback,
// in which case the operation will complete silently.
using StatusCallback = OnceCallback<void(File::Error)>;
using GetFileInfoCallback =
OnceCallback<void(File::Error, const File::Info&)>;
// Retrieves the information about a file. It is invalid to pass a null
// callback.
// This returns false if task posting to |task_runner| has failed.
static bool GetFileInfo(TaskRunner* task_runner,
const FilePath& file_path,
GetFileInfoCallback callback);
// Touches a file. The callback can be null.
// This returns false if task posting to |task_runner| has failed.
static bool Touch(TaskRunner* task_runner,
const FilePath& file_path,
const Time& last_access_time,
const Time& last_modified_time,
StatusCallback callback);
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(FileUtilProxy);
};
} // namespace base
#endif // BASE_FILES_FILE_UTIL_PROXY_H_
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