mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-21 04:31:04 +08:00
79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
|
/* Copyright (C) 2003, 2004, 2005 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, write to the Free
|
||
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||
|
|
02111-1307 USA. */
|
||
|
|
|
||
|
|
#include <errno.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <sysdep.h>
|
||
|
|
#include <kernel-features.h>
|
||
|
|
|
||
|
|
int __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise);
|
||
|
|
int __posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise);
|
||
|
|
|
||
|
|
/* Advice the system about the expected behaviour of the application with
|
||
|
|
respect to the file associated with FD. */
|
||
|
|
|
||
|
|
int
|
||
|
|
__posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise)
|
||
|
|
{
|
||
|
|
#ifdef __NR_arm_fadvise64_64
|
||
|
|
INTERNAL_SYSCALL_DECL (err);
|
||
|
|
int ret = INTERNAL_SYSCALL (arm_fadvise64_64, err, 6, fd, advise,
|
||
|
|
__LONG_LONG_PAIR ((long)(offset >> 32), (long)offset),
|
||
|
|
__LONG_LONG_PAIR ((long)(len >> 32), (long)len));
|
||
|
|
if (!INTERNAL_SYSCALL_ERROR_P (ret, err))
|
||
|
|
return 0;
|
||
|
|
# ifndef __ASSUME_FADVISE64_64_SYSCALL
|
||
|
|
if (INTERNAL_SYSCALL_ERRNO (ret, err) != ENOSYS)
|
||
|
|
# endif
|
||
|
|
return INTERNAL_SYSCALL_ERRNO (ret, err);
|
||
|
|
#endif
|
||
|
|
#ifndef __ASSUME_FADVISE64_64_SYSCALL
|
||
|
|
# ifdef __NR_fadvise64
|
||
|
|
if (len != (off_t) len)
|
||
|
|
return EOVERFLOW;
|
||
|
|
|
||
|
|
INTERNAL_SYSCALL_DECL (err2);
|
||
|
|
int ret2 = INTERNAL_SYSCALL (fadvise64, err2, 6, fd, 0,
|
||
|
|
__LONG_LONG_PAIR ((long)(offset >> 32), (long)offset),
|
||
|
|
(off_t) len, advise);
|
||
|
|
if (!INTERNAL_SYSCALL_ERROR_P (ret2, err2))
|
||
|
|
return 0;
|
||
|
|
return INTERNAL_SYSCALL_ERRNO (ret2, err2);
|
||
|
|
# else
|
||
|
|
return ENOSYS;
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#include <shlib-compat.h>
|
||
|
|
|
||
|
|
#if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3)
|
||
|
|
|
||
|
|
int
|
||
|
|
attribute_compat_text_section
|
||
|
|
__posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise)
|
||
|
|
{
|
||
|
|
return __posix_fadvise64_l64 (fd, offset, len, advise);
|
||
|
|
}
|
||
|
|
|
||
|
|
versioned_symbol (libc, __posix_fadvise64_l64, posix_fadvise64, GLIBC_2_3_3);
|
||
|
|
compat_symbol (libc, __posix_fadvise64_l32, posix_fadvise64, GLIBC_2_2);
|
||
|
|
#else
|
||
|
|
strong_alias (__posix_fadvise64_l64, posix_fadvise64);
|
||
|
|
#endif
|