/* Copyright (C) 2003-2012 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#define posix_fadvise64 __no_posix_fadvise64
#include <errno.h>
#include <fcntl.h>
#include <sysdep.h>
#undef posix_fadvise64

/* Advice the system about the expected behaviour of the application with
   respect to the file associated with FD.  */

int
posix_fadvise (int fd, off_t offset, off_t len, int advise)
{
#ifdef __NR_fadvise64
  INTERNAL_SYSCALL_DECL (err);
  int ret = INTERNAL_SYSCALL (fadvise64, err, 4, fd, offset, len, advise);
  if (INTERNAL_SYSCALL_ERROR_P (ret, err))
    return INTERNAL_SYSCALL_ERRNO (ret, err);
  return 0;
#else
  return ENOSYS;
#endif
}

#include <shlib-compat.h>

#if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3)
strong_alias (posix_fadvise, __posix_fadvise64_l32);
compat_symbol (libc, __posix_fadvise64_l32, posix_fadvise64, GLIBC_2_2);
strong_alias (posix_fadvise, __posix_fadvise64_l64);
versioned_symbol (libc, __posix_fadvise64_l64, posix_fadvise64, GLIBC_2_3_3);
#else
strong_alias (posix_fadvise, posix_fadvise64);
#endif