glibc/rt/aio_fsync.c

50 lines
1.5 KiB
C

/* Synchronize I/O in given file descriptor. Stub version.
Copyright (C) 2001-2014 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/>. */
/* We use an UGLY hack to prevent gcc from finding us cheating. The
implementation of aio_fsync and aio_fsync64 are identical and so
we want to avoid code duplication by using aliases. But gcc sees
the different parameter lists and prints a warning. We define here
a function so that aio_fsync64 has no prototype. */
#define aio_fsync64 XXX
#include <aio.h>
/* And undo the hack. */
#undef aio_fsync64
#include <errno.h>
#include <fcntl.h>
int
aio_fsync (int op, struct aiocb *aiocbp)
{
if (op != O_SYNC && op != O_DSYNC)
{
__set_errno (EINVAL);
return -1;
}
__set_errno (ENOSYS);
return -1;
}
weak_alias (aio_fsync, aio_fsync64)
stub_warning (aio_fsync)
stub_warning (aio_fsync64)