io/sys/statfs.h

   1 /* Definitions for getting information about a filesystem.
   2    Copyright (C) 1996-2017 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_STATFS_H
  20 #define _SYS_STATFS_H   1
  21
  22 #include <features.h>
  23
  24 /* Get the system-specific definition of `struct statfs'.  */
  25 #include <bits/statfs.h>
  26
  27 __BEGIN_DECLS
  28
  29 /* Return information about the filesystem on which FILE resides.  */
  30 #ifndef __USE_FILE_OFFSET64
  31 extern int statfs (const char *__file, struct statfs *__buf)
  32      __THROW __nonnull ((1, 2));
  33 #else
  34 # ifdef __REDIRECT_NTH
  35 extern int __REDIRECT_NTH (statfs,
  36                            (const char *__file, struct statfs *__buf),
  37                            statfs64) __nonnull ((1, 2));
  38 # else
  39 #  define statfs statfs64
  40 # endif
  41 #endif
  42 #ifdef __USE_LARGEFILE64
  43 extern int statfs64 (const char *__file, struct statfs64 *__buf)
  44      __THROW __nonnull ((1, 2));
  45 #endif
  46
  47 /* Return information about the filesystem containing the file FILDES
  48    refers to.  */
  49 #ifndef __USE_FILE_OFFSET64
  50 extern int fstatfs (int __fildes, struct statfs *__buf)
  51      __THROW __nonnull ((2));
  52 #else
  53 # ifdef __REDIRECT_NTH
  54 extern int __REDIRECT_NTH (fstatfs, (int __fildes, struct statfs *__buf),
  55                            fstatfs64) __nonnull ((2));
  56 # else
  57 #  define fstatfs fstatfs64
  58 # endif
  59 #endif
  60 #ifdef __USE_LARGEFILE64
  61 extern int fstatfs64 (int __fildes, struct statfs64 *__buf)
  62      __THROW __nonnull ((2));
  63 #endif
  64
  65 __END_DECLS
  66
  67 #endif  /* sys/statfs.h */