Update.
[glibc.git] / rt / aio_fsync.c
blob298b4ec87d335a9d9908602db41f3f50b18974c5
1 /* Synchronize I/O in given file descriptor.
2 Copyright (C) 1997, 1999 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
22 /* We use an UGLY hack to prevent gcc from finding us cheating. The
23 implementation of aio_fsync and aio_fsync64 are identical and so
24 we want to avoid code duplication by using aliases. But gcc sees
25 the different parameter lists and prints a warning. We define here
26 a function so that aio_fsync64 has no prototype. */
27 #define aio_fsync64 XXX
28 #include <aio.h>
29 /* And undo the hack. */
30 #undef aio_fsync64
31 #include <errno.h>
33 #include "aio_misc.h"
36 int
37 aio_fsync (int op, struct aiocb *aiocbp)
39 if (op != O_DSYNC && op != O_SYNC)
41 __set_errno (EINVAL);
42 return -1;
45 return (__aio_enqueue_request ((aiocb_union *) aiocbp,
46 op == O_SYNC ? LIO_SYNC : LIO_DSYNC) == NULL
47 ? -1 : 0);
50 weak_alias (aio_fsync, aio_fsync64)