obfuscated_file_util_memory_delegate.h

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef STORAGE_BROWSER_FILE_SYSTEM_OBFUSCATED_FILE_UTIL_MEMORY_DELEGATE_H_
#define STORAGE_BROWSER_FILE_SYSTEM_OBFUSCATED_FILE_UTIL_MEMORY_DELEGATE_H_

#include <map>
#include <memory>
#include <vector>

#include "base/component_export.h"
#include "base/containers/span.h"
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "storage/browser/file_system/native_file_util.h"
#include "storage/browser/file_system/obfuscated_file_util_delegate.h"

namespace storage {

// This delegate performs all ObfuscatedFileUtil tasks that require touching
// disk and peforms them in memory.

// The given paths should be subpaths of the |file_system_directory| folder
// passed to the constructor. No normalization is done on the this root folder
// and it is expected that all input paths would start with it.

// Directories and files are both stored in |Entry| structures, keeping the type
// of the entry, creation, modification, and last access time, and
// |file_content| or |directory_content| based on the type.

// Directory tree is kept in a tree structure starting from |root_|. All API
// functions that receive a |FilePath|, convert it to a |DecomposedPath| which
// has separated normalized components, is ensured that it is under the root,
// and has the respective |Entry| (if exists) and its parent in the directory
// tree starting from |root_|.

class COMPONENT_EXPORT(STORAGE_BROWSER) ObfuscatedFileUtilMemoryDelegate
    : public ObfuscatedFileUtilDelegate { … };

}  // namespace storage

#endif  // STORAGE_BROWSER_FILE_SYSTEM_OBFUSCATED_FILE_UTIL_MEMORY_DELEGATE_H_
chromium/storage/browser/file_system/obfuscated_file_util_memory_delegate.h
