1/* Return exit value of asynchronous I/O request.
2 Copyright (C) 1997-2021 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_return and aio_return64 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_return64 has no prototype. */
26#define aio_return64 XXX
27#include <aio.h>
28/* And undo the hack. */
29#undef aio_return64
30
31#include <shlib-compat.h>
32
33ssize_t
34__aio_return (struct aiocb *aiocbp)
35{
36 return aiocbp->__return_value;
37}
38
39#if PTHREAD_IN_LIBC
40versioned_symbol (libc, __aio_return, aio_return, GLIBC_2_34);
41versioned_symbol (libc, __aio_return, aio_return64, GLIBC_2_34);
42# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_34)
43compat_symbol (librt, __aio_return, aio_return, GLIBC_2_1);
44compat_symbol (librt, __aio_return, aio_return64, GLIBC_2_1);
45# endif
46#else /* !PTHREAD_IN_LIBC */
47strong_alias (__aio_return, aio_return)
48weak_alias (__aio_return, aio_return64)
49#endif
50