ceph/src/include/cephfs/ceph_statx.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * scalable distributed file system
   5  *
   6  * Copyright (C) Jeff Layton <jlayton@redhat.com>
   7  *
   8  * Heavily borrowed from David Howells' draft statx patchset.
   9  *
  10  * This is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License version 2.1, as published by the Free Software
  13  * Foundation.  See file COPYING.
  14  *
  15  */
  16
  17 #ifndef CEPH_CEPH_STATX_H
  18 #define CEPH_CEPH_STATX_H
  19 #include <stdint.h>
  20
  21 #ifdef __cplusplus
  22 extern "C" {
  23 #endif
  24
  25 /*
  26  * Since the xstat patches are still a work in progress, we borrow its data
  27  * structures and #defines to implement ceph_getattrx. Once the xstat stuff
  28  * has been merged we should drop this and switch over to using that instead.
  29  */
  30 struct ceph_statx {
  31         uint32_t        stx_mask;
  32         uint32_t        stx_blksize;
  33         uint32_t        stx_nlink;
  34         uint32_t        stx_uid;
  35         uint32_t        stx_gid;
  36         uint16_t        stx_mode;
  37         uint64_t        stx_ino;
  38         uint64_t        stx_size;
  39         uint64_t        stx_blocks;
  40         dev_t           stx_dev;
  41         dev_t           stx_rdev;
  42         struct timespec stx_atime;
  43         struct timespec stx_ctime;
  44         struct timespec stx_mtime;
  45         struct timespec stx_btime;
  46         uint64_t        stx_version;
  47 };
  48
  49 #define CEPH_STATX_MODE         0x00000001U     /* Want/got stx_mode */
  50 #define CEPH_STATX_NLINK        0x00000002U     /* Want/got stx_nlink */
  51 #define CEPH_STATX_UID          0x00000004U     /* Want/got stx_uid */
  52 #define CEPH_STATX_GID          0x00000008U     /* Want/got stx_gid */
  53 #define CEPH_STATX_RDEV         0x00000010U     /* Want/got stx_rdev */
  54 #define CEPH_STATX_ATIME        0x00000020U     /* Want/got stx_atime */
  55 #define CEPH_STATX_MTIME        0x00000040U     /* Want/got stx_mtime */
  56 #define CEPH_STATX_CTIME        0x00000080U     /* Want/got stx_ctime */
  57 #define CEPH_STATX_INO          0x00000100U     /* Want/got stx_ino */
  58 #define CEPH_STATX_SIZE         0x00000200U     /* Want/got stx_size */
  59 #define CEPH_STATX_BLOCKS       0x00000400U     /* Want/got stx_blocks */
  60 #define CEPH_STATX_BASIC_STATS  0x000007ffU     /* The stuff in the normal stat struct */
  61 #define CEPH_STATX_BTIME        0x00000800U     /* Want/got stx_btime */
  62 #define CEPH_STATX_VERSION      0x00001000U     /* Want/got stx_version */
  63 #define CEPH_STATX_ALL_STATS    0x00001fffU     /* All supported stats */
  64
  65 /*
  66  * Compatability macros until these defines make their way into glibc
  67  */
  68 #ifndef AT_NO_ATTR_SYNC
  69 #define AT_NO_ATTR_SYNC         0x4000 /* Don't sync attributes with the server */
  70 #endif
  71
  72 /*
  73  * The statx interfaces only allow these flags. In order to allow us to add
  74  * others in the future, we disallow setting any that aren't recognized.
  75  */
  76 #define CEPH_REQ_FLAG_MASK              (AT_SYMLINK_NOFOLLOW|AT_NO_ATTR_SYNC)
  77
  78 #ifdef __cplusplus
  79 }
  80 #endif
  81
  82 #endif /* CEPH_STATX_H */
  83