ceph/src/include/statlite.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 #ifndef CEPH_STATLITE_H
   4 #define CEPH_STATLITE_H
   5
   6 extern "C" {
   7
   8 #include <time.h>
   9 #include <sys/types.h>
  10 #include <sys/stat.h>
  11 #include <unistd.h>
  12 #include <dirent.h>
  13
  14 struct statlite {
  15   dev_t         st_dev;      /* device */
  16   ino_t         st_ino;      /* inode */
  17   mode_t        st_mode;     /* protection */
  18   nlink_t       st_nlink;    /* number of hard links */
  19   uid_t         st_uid;      /* user ID of owner */
  20   gid_t         st_gid;      /* group ID of owner */
  21   dev_t         st_rdev;     /* device type (if inode device)*/
  22   unsigned long st_litemask; /* bit mask for optional fields */
  23   /***************************************************************/
  24   /**** Remaining fields are optional according to st_litemask ***/
  25   off_t         st_size;     /* total size, in bytes         */
  26   blksize_t     st_blksize;  /* blocksize for filesystem I/O */
  27   blkcnt_t      st_blocks;   /* number of blocks allocated   */
  28   struct timespec st_atim;            /* Time of last access.  */
  29   struct timespec st_mtim;            /* Time of last modification.  */
  30   struct timespec st_ctim;            /* Time of last status change.  */
  31   //time_t        st_atime;    /* time of last access          */
  32   //time_t        st_mtime;    /* time of last modification    */
  33   //time_t        st_ctime;    /* time of last change          */
  34 };
  35
  36 #define S_STATLITE_SIZE     1
  37 #define S_STATLITE_BLKSIZE  2
  38 #define S_STATLITE_BLOCKS   4
  39 #define S_STATLITE_ATIME    8
  40 #define S_STATLITE_MTIME    16
  41 #define S_STATLITE_CTIME    32
  42
  43 #define S_REQUIRESIZE(m)      (m | S_STATLITE_SIZE)
  44 #define S_REQUIREBLKSIZE(m)   (m | S_STATLITE_BLKSIZE)
  45 #define S_REQUIREBLOCKS(m)    (m | S_STATLITE_BLOCKS)
  46 #define S_REQUIREATIME(m)     (m | S_STATLITE_ATIME)
  47 #define S_REQUIREMTIME(m)     (m | S_STATLITE_MTIME)
  48 #define S_REQUIRECTIME(m)     (m | S_STATLITE_CTIME)
  49
  50 #define S_ISVALIDSIZE(m)      (m & S_STATLITE_SIZE)
  51 #define S_ISVALIDBLKSIZE(m)   (m & S_STATLITE_BLKSIZE)
  52 #define S_ISVALIDBLOCKS(m)    (m & S_STATLITE_BLOCKS)
  53 #define S_ISVALIDATIME(m)     (m & S_STATLITE_ATIME)
  54 #define S_ISVALIDMTIME(m)     (m & S_STATLITE_MTIME)
  55 #define S_ISVALIDCTIME(m)     (m & S_STATLITE_CTIME)
  56
  57
  58 // readdirplus etc.
  59
  60 struct dirent_plus {
  61  struct dirent     d_dirent;  /* dirent struct for this entry */
  62  struct stat       d_stat;    /* attributes for this entry */
  63  int               d_stat_err;/* errno for d_stat, or 0 */
  64 };
  65 struct dirent_lite {
  66  struct dirent     d_dirent;  /* dirent struct for this entry */
  67  struct statlite   d_stat;    /* attributes for this entry */
  68  int               d_stat_err;/* errno for d_stat, or 0 */
  69 };
  70
  71 }
  72 #endif