mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 00:31:08 +00:00
78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/* Selective file content synch'ing.
|
|
Copyright (C) 2006, 2007, 2009, 2011 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 <sys/types.h>
|
|
|
|
#include <sysdep-cancel.h>
|
|
#include <sys/syscall.h>
|
|
|
|
|
|
#ifdef __NR_sync_file_range
|
|
int
|
|
sync_file_range (int fd, __off64_t from, __off64_t to, unsigned int flags)
|
|
{
|
|
if (SINGLE_THREAD_P)
|
|
return INLINE_SYSCALL (sync_file_range, 6, fd,
|
|
__LONG_LONG_PAIR ((long) (from >> 32), (long) from),
|
|
__LONG_LONG_PAIR ((long) (to >> 32), (long) to),
|
|
flags);
|
|
|
|
int result;
|
|
int oldtype = LIBC_CANCEL_ASYNC ();
|
|
|
|
result = INLINE_SYSCALL (sync_file_range, 6, fd,
|
|
__LONG_LONG_PAIR ((long) (from >> 32), (long) from),
|
|
__LONG_LONG_PAIR ((long) (to >> 32), (long) to),
|
|
flags);
|
|
|
|
LIBC_CANCEL_RESET (oldtype);
|
|
|
|
return result;
|
|
}
|
|
#elif defined __NR_sync_file_range2
|
|
int
|
|
sync_file_range (int fd, __off64_t from, __off64_t to, unsigned int flags)
|
|
{
|
|
if (SINGLE_THREAD_P)
|
|
return INLINE_SYSCALL (sync_file_range2, 6, fd, flags,
|
|
__LONG_LONG_PAIR ((long) (from >> 32), (long) from),
|
|
__LONG_LONG_PAIR ((long) (to >> 32), (long) to));
|
|
|
|
int result;
|
|
int oldtype = LIBC_CANCEL_ASYNC ();
|
|
|
|
result = INLINE_SYSCALL (sync_file_range2, 6, fd, flags,
|
|
__LONG_LONG_PAIR ((long) (from >> 32), (long) from),
|
|
__LONG_LONG_PAIR ((long) (to >> 32), (long) to));
|
|
|
|
LIBC_CANCEL_RESET (oldtype);
|
|
|
|
return result;
|
|
}
|
|
#else
|
|
int
|
|
sync_file_range (int fd, __off64_t from, __off64_t to, unsigned int flags)
|
|
{
|
|
__set_errno (ENOSYS);
|
|
return -1;
|
|
}
|
|
stub_warning (sync_file_range)
|
|
#endif
|