1/* Return error status of asynchronous I/O request.
2 Copyright (C) 1997-2020 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
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 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
19
20
21/* We use an UGLY hack to prevent gcc from finding us cheating. The
22 implementation of aio_error and aio_error64 are identical and so
23 we want to avoid code duplication by using aliases. But gcc sees
24 the different parameter lists and prints a warning. We define here
25 a function so that aio_error64 has no prototype. */
26#define aio_error64 XXX
27#include <aio.h>
28/* And undo the hack. */
29#undef aio_error64
30
31#include <aio_misc.h>
32
33
34int
35aio_error (const struct aiocb *aiocbp)
36{
37 int ret;
38
39 /* Acquire the mutex to make sure all operations for this request are
40 complete. */
41 pthread_mutex_lock(&__aio_requests_mutex);
42 ret = aiocbp->__error_code;
43 pthread_mutex_unlock(&__aio_requests_mutex);
44
45 return ret;
46}
47
48weak_alias (aio_error, aio_error64)
49