io/sys/statvfs.h

   1 /* Definitions for getting information about a filesystem.
   2    Copyright (C) 1998-2018 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _SYS_STATVFS_H
  20 #define _SYS_STATVFS_H  1
  21
  22 #include <features.h>
  23
  24 /* Get the system-specific definition of `struct statfs'.  */
  25 #include <bits/statvfs.h>
  26
  27 #ifndef __USE_FILE_OFFSET64
  28 # ifndef __fsblkcnt_t_defined
  29 typedef __fsblkcnt_t fsblkcnt_t; /* Type to count file system blocks.  */
  30 #  define __fsblkcnt_t_defined
  31 # endif
  32 # ifndef __fsfilcnt_t_defined
  33 typedef __fsfilcnt_t fsfilcnt_t; /* Type to count file system inodes.  */
  34 #  define __fsfilcnt_t_defined
  35 # endif
  36 #else
  37 # ifndef __fsblkcnt_t_defined
  38 typedef __fsblkcnt64_t fsblkcnt_t; /* Type to count file system blocks.  */
  39 #  define __fsblkcnt_t_defined
  40 # endif
  41 # ifndef __fsfilcnt_t_defined
  42 typedef __fsfilcnt64_t fsfilcnt_t; /* Type to count file system inodes.  */
  43 #  define __fsfilcnt_t_defined
  44 # endif
  45 #endif
  46
  47 __BEGIN_DECLS
  48
  49 /* Return information about the filesystem on which FILE resides.  */
  50 #ifndef __USE_FILE_OFFSET64
  51 extern int statvfs (const char *__restrict __file,
  52                     struct statvfs *__restrict __buf)
  53      __THROW __nonnull ((1, 2));
  54 #else
  55 # ifdef __REDIRECT_NTH
  56 extern int __REDIRECT_NTH (statvfs,
  57                            (const char *__restrict __file,
  58                             struct statvfs *__restrict __buf), statvfs64)
  59      __nonnull ((1, 2));
  60 # else
  61 #  define statvfs statvfs64
  62 # endif
  63 #endif
  64 #ifdef __USE_LARGEFILE64
  65 extern int statvfs64 (const char *__restrict __file,
  66                       struct statvfs64 *__restrict __buf)
  67      __THROW __nonnull ((1, 2));
  68 #endif
  69
  70 /* Return information about the filesystem containing the file FILDES
  71    refers to.  */
  72 #ifndef __USE_FILE_OFFSET64
  73 extern int fstatvfs (int __fildes, struct statvfs *__buf)
  74      __THROW __nonnull ((2));
  75 #else
  76 # ifdef __REDIRECT_NTH
  77 extern int __REDIRECT_NTH (fstatvfs, (int __fildes, struct statvfs *__buf),
  78                            fstatvfs64) __nonnull ((2));
  79 # else
  80 #  define fstatvfs fstatvfs64
  81 # endif
  82 #endif
  83 #ifdef __USE_LARGEFILE64
  84 extern int fstatvfs64 (int __fildes, struct statvfs64 *__buf)
  85      __THROW __nonnull ((2));
  86 #endif
  87
  88 __END_DECLS
  89
  90 #endif  /* sys/statvfs.h */