src/add-ons/kernel/file_systems/btrfs/Utility.h

   1 /*
   2  * Copyright 2001-2009, Axel Dörfler, axeld@pinc-software.de.
   3  * This file may be used under the terms of the MIT License.
   4  */
   5 #ifndef UTILITY_H
   6 #define UTILITY_H
   7
   8
   9 #include "btrfs.h"
  10
  11
  12 enum inode_type {
  13         S_DIRECTORY             = S_IFDIR,
  14         S_FILE                  = S_IFREG,
  15         S_SYMLINK               = S_IFLNK,
  16
  17         S_INDEX_TYPES   = (S_STR_INDEX | S_INT_INDEX | S_UINT_INDEX
  18                                                 | S_LONG_LONG_INDEX | S_ULONG_LONG_INDEX
  19                                                 | S_FLOAT_INDEX | S_DOUBLE_INDEX),
  20
  21         S_EXTENDED_TYPES = (S_ATTR_DIR | S_ATTR | S_INDEX_DIR)
  22 };
  23
  24
  25 /*!     Converts the open mode, the open flags given to bfs_open(), into
  26         access modes, e.g. since O_RDONLY requires read access to the
  27         file, it will be converted to R_OK.
  28 */
  29 inline int
  30 open_mode_to_access(int openMode)
  31 {
  32         openMode &= O_RWMASK;
  33         if (openMode == O_RDONLY)
  34                 return R_OK;
  35         if (openMode == O_WRONLY)
  36                 return W_OK;
  37
  38         return R_OK | W_OK;
  39 }
  40
  41
  42 #endif  // UTILITY_H