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// Copyright (c) 2010 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 CHROME_BROWSER_FILE_SYSTEM_PROXY_H_
#define CHROME_BROWSER_FILE_SYSTEM_PROXY_H_
#include "base/callback.h"
#include "base/platform_file.h"
#include "base/ref_counted.h"
// This class provides asynchronous access to common file routines.
class FileSystemProxy {
public:
// This callback is used by methods that report success with a bool. It is
// valid to pass NULL as the callback parameter to any function that takes a
// StatusCallback, in which case the operation will complete silently.
typedef Callback1<bool /* succeeded */>::Type StatusCallback;
// Creates or opens a file with the given flags. It is invalid to pass NULL
// for the callback.
typedef Callback2<base::PassPlatformFile, bool /* created */>::Type
CreateOrOpenCallback;
static void CreateOrOpen(const FilePath& file_path,
int file_flags,
CreateOrOpenCallback* callback);
// Creates a temporary file for writing. The path and an open file handle
// are returned. It is invalid to pass NULL for the callback.
typedef Callback2<base::PassPlatformFile, FilePath>::Type
CreateTemporaryCallback;
static void CreateTemporary(CreateTemporaryCallback* callback);
// Close the given file handle.
static void Close(base::PlatformFile, StatusCallback* callback);
// Deletes a file or empty directory.
static void Delete(const FilePath& file_path,
StatusCallback* callback);
// Deletes a directory and all of its contents.
static void RecursiveDelete(const FilePath& file_path,
StatusCallback* callback);
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(FileSystemProxy);
};
#endif // CHROME_BROWSER_FILE_SYSTEM_PROXY_H_
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