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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef STORAGE_BROWSER_FILEAPI_NATIVE_FILE_UTIL_H_
      6 #define STORAGE_BROWSER_FILEAPI_NATIVE_FILE_UTIL_H_
      7 
      8 #include "base/files/file.h"
      9 #include "base/files/file_path.h"
     10 #include "base/files/file_util_proxy.h"
     11 #include "base/memory/scoped_ptr.h"
     12 #include "storage/browser/fileapi/file_system_file_util.h"
     13 #include "storage/browser/storage_browser_export.h"
     14 
     15 namespace base {
     16 class Time;
     17 }
     18 
     19 namespace storage {
     20 
     21 // A thin wrapper class for accessing the OS native filesystem.
     22 // This performs common error checks necessary to implement FileUtil family
     23 // in addition to perform native filesystem operations.
     24 //
     25 // For the error checks it performs please see the comment for
     26 // FileSystemFileUtil interface
     27 // (storage/browser/fileapi/file_system_file_util.h).
     28 //
     29 // Note that all the methods of this class are static and this does NOT
     30 // inherit from FileSystemFileUtil.
     31 class STORAGE_EXPORT_PRIVATE NativeFileUtil {
     32  public:
     33   enum CopyOrMoveMode {
     34     COPY_NOSYNC,
     35     COPY_SYNC,
     36     MOVE
     37   };
     38   static CopyOrMoveMode CopyOrMoveModeForDestination(
     39       const FileSystemURL& dest_url, bool copy);
     40 
     41   static base::File CreateOrOpen(const base::FilePath& path, int file_flags);
     42   static base::File::Error EnsureFileExists(const base::FilePath& path,
     43                                             bool* created);
     44   static base::File::Error CreateDirectory(const base::FilePath& path,
     45                                            bool exclusive,
     46                                            bool recursive);
     47   static base::File::Error GetFileInfo(const base::FilePath& path,
     48                                        base::File::Info* file_info);
     49   static scoped_ptr<FileSystemFileUtil::AbstractFileEnumerator>
     50       CreateFileEnumerator(const base::FilePath& root_path,
     51                            bool recursive);
     52   static base::File::Error Touch(const base::FilePath& path,
     53                                  const base::Time& last_access_time,
     54                                  const base::Time& last_modified_time);
     55   static base::File::Error Truncate(const base::FilePath& path,
     56                                     int64 length);
     57   static bool PathExists(const base::FilePath& path);
     58   static bool DirectoryExists(const base::FilePath& path);
     59   static base::File::Error CopyOrMoveFile(
     60       const base::FilePath& src_path,
     61       const base::FilePath& dest_path,
     62       FileSystemOperation::CopyOrMoveOption option,
     63       CopyOrMoveMode mode);
     64   static base::File::Error DeleteFile(const base::FilePath& path);
     65   static base::File::Error DeleteDirectory(const base::FilePath& path);
     66 
     67  private:
     68   DISALLOW_IMPLICIT_CONSTRUCTORS(NativeFileUtil);
     69 };
     70 
     71 }  // namespace storage
     72 
     73 #endif  // STORAGE_BROWSER_FILEAPI_NATIVE_FILE_UTIL_H_
     74