mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-26 23:10:06 +00:00
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/* Copyright (C) 2007-2015 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 <errno.h>
|
|
#include <fcntl.h>
|
|
#include <sysdep-cancel.h>
|
|
|
|
|
|
/* Reserve storage for the data of the file associated with FD. */
|
|
int
|
|
fallocate (int fd, int mode, __off_t offset, __off_t len)
|
|
{
|
|
#ifdef __NR_fallocate
|
|
if (SINGLE_THREAD_P)
|
|
return INLINE_SYSCALL (fallocate, 6, fd, mode,
|
|
__LONG_LONG_PAIR (offset >> 31, offset),
|
|
__LONG_LONG_PAIR (len >> 31, len));
|
|
|
|
int result;
|
|
int oldtype = LIBC_CANCEL_ASYNC ();
|
|
|
|
result = INLINE_SYSCALL (fallocate, 6, fd, mode,
|
|
__LONG_LONG_PAIR (offset >> 31, offset),
|
|
__LONG_LONG_PAIR (len >> 31, len));
|
|
|
|
LIBC_CANCEL_RESET (oldtype);
|
|
|
|
return result;
|
|
#else
|
|
__set_errno (ENOSYS);
|
|
return -1;
|
|
#endif
|
|
}
|