headers/private/fs_shell/fssh_fs_info.h

   1 /* General File System informations/capabilities
   2 **
   3 ** Distributed under the terms of the MIT License.
   4 */
   5 #ifndef _FSSH_FS_INFO_H
   6 #define _FSSH_FS_INFO_H
   7
   8 #include "fssh_defs.h"
   9 #include "fssh_os.h"
  10
  11
  12 /* fs_info.flags */
  13 #define FSSH_B_FS_IS_READONLY           0x00000001
  14 #define FSSH_B_FS_IS_REMOVABLE          0x00000002
  15 #define FSSH_B_FS_IS_PERSISTENT         0x00000004
  16 #define FSSH_B_FS_IS_SHARED                     0x00000008
  17 #define FSSH_B_FS_HAS_MIME                      0x00010000
  18 #define FSSH_B_FS_HAS_ATTR                      0x00020000
  19 #define FSSH_B_FS_HAS_QUERY                     0x00040000
  20 // those additions are preliminary and may be removed
  21 #define FSSH_B_FS_HAS_SELF_HEALING_LINKS        0x00080000
  22 #define FSSH_B_FS_HAS_ALIASES                           0x00100000
  23 #define FSSH_B_FS_SUPPORTS_NODE_MONITORING      0x00200000
  24 #define FSSH_B_FS_SUPPORTS_MONITOR_CHILDREN     0x00400000
  25
  26 typedef struct fssh_fs_info {
  27         fssh_dev_t      dev;                                                            /* volume dev_t */
  28         fssh_ino_t      root;                                                           /* root ino_t */
  29         uint32_t        flags;                                                          /* flags (see above) */
  30         fssh_off_t      block_size;                                                     /* fundamental block size */
  31         fssh_off_t      io_size;                                                        /* optimal i/o size */
  32         fssh_off_t      total_blocks;                                           /* total number of blocks */
  33         fssh_off_t      free_blocks;                                            /* number of free blocks */
  34         fssh_off_t      total_nodes;                                            /* total number of nodes */
  35         fssh_off_t      free_nodes;                                                     /* number of free nodes */
  36         char            device_name[128];                                       /* device holding fs */
  37         char            volume_name[FSSH_B_FILE_NAME_LENGTH];   /* volume name */
  38         char            fsh_name[FSSH_B_OS_NAME_LENGTH];                /* name of fs handler */
  39 } fssh_fs_info;
  40
  41
  42 #ifdef  __cplusplus
  43 extern "C" {
  44 #endif
  45
  46 extern fssh_dev_t       dev_for_path(const char *path);
  47 extern fssh_dev_t       next_dev(int32_t *pos);
  48 extern int                      fs_stat_dev(fssh_dev_t dev, fssh_fs_info *info);
  49
  50 #ifdef  __cplusplus
  51 }
  52 #endif
  53
  54 #endif  /* _FSSH_FS_INFO_H */