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/* Copyright (C) 2007-2013 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/>. */
#include <fcntl.h>
#include <kernel-features.h>
#include <sysdep.h>
extern int __syscall_posix_fallocate(int fd, off_t offset, off_t len);
libc_hidden_proto (__syscall_posix_fallocate)
#define posix_fallocate static internal_fallocate
#include <sysdeps/posix/posix_fallocate.c>
#undef posix_fallocate
#if !defined __ASSUME_FALLOCATE
static int __have_fallocate;
#endif
/* Reserve storage for the data of the file associated with FD. */
int
__posix_fallocate (int fd, __off_t offset, __off_t len)
{
#ifndef __ASSUME_FALLOCATE
if (__have_fallocate >= 0)
#endif
{
int res = INLINE_SYSCALL (posix_fallocate, 3, fd, offset, len);
if (res == -1)
res = errno;
#ifndef __ASSUME_FALLOCATE
if (res == ENOSYS)
{
__have_fallocate = -1;
}
else
#endif
{
if (res != EOPNOTSUPP)
return res;
}
}
return internal_fallocate (fd, offset, len);
}
strong_alias (__posix_fallocate, posix_fallocate)
/* 'posix_fallocate64' is the same as 'posix_fallocate', because __off64_t == __off_t. */
/* but previous prototype have different size of len parameter */
#include <shlib-compat.h>
#include <bits/wordsize.h>
#if __WORDSIZE == 32 && SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3)
int
attribute_compat_text_section
__posix_fallocate64_l32 (int fd, off64_t offset, size_t len)
{
return __posix_fallocate (fd, offset, len);
}
versioned_symbol (libc, __posix_fallocate, posix_fallocate64, GLIBC_2_3_3);
compat_symbol (libc, __posix_fallocate64_l32, posix_fallocate64, GLIBC_2_2);
#else
weak_alias (__posix_fallocate, posix_fallocate64)
#endif
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