mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-24 13:33:08 +03:00
58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/* Synchronize I/O in given file descriptor.
|
|
Copyright (C) 1997-2013 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
|
|
|
|
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>
|
|
|
|
#include <aio_misc.h>
|
|
|
|
|
|
int
|
|
aio_fsync (int op, struct aiocb *aiocbp)
|
|
{
|
|
if (op != O_DSYNC && __builtin_expect (op != O_SYNC, 0))
|
|
{
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
/* Verify that this is an open file descriptor. */
|
|
if (__glibc_unlikely (fcntl (aiocbp->aio_fildes, F_GETFL) == -1))
|
|
{
|
|
__set_errno (EBADF);
|
|
return -1;
|
|
}
|
|
|
|
return (__aio_enqueue_request ((aiocb_union *) aiocbp,
|
|
op == O_SYNC ? LIO_SYNC : LIO_DSYNC) == NULL
|
|
? -1 : 0);
|
|
}
|
|
|
|
weak_alias (aio_fsync, aio_fsync64)
|