1/* Return exit value of asynchronous I/O request.
2 Copyright (C) 1997-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19
20/* We use an UGLY hack to prevent gcc from finding us cheating. The
21 implementation of aio_return and aio_return64 are identical and so
22 we want to avoid code duplication by using aliases. But gcc sees
23 the different parameter lists and prints a warning. We define here
24 a function so that aio_return64 has no prototype. */
25#define aio_return64 XXX
26#include <aio.h>
27/* And undo the hack. */
28#undef aio_return64
29
30#include <shlib-compat.h>
31
32ssize_t
33__aio_return (struct aiocb *aiocbp)
34{
35 return aiocbp->__return_value;
36}
37
38#if PTHREAD_IN_LIBC
39versioned_symbol (libc, __aio_return, aio_return, GLIBC_2_34);
40versioned_symbol (libc, __aio_return, aio_return64, GLIBC_2_34);
41# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_34)
42compat_symbol (librt, __aio_return, aio_return, GLIBC_2_1);
43compat_symbol (librt, __aio_return, aio_return64, GLIBC_2_1);
44# endif
45#else /* !PTHREAD_IN_LIBC */
46strong_alias (__aio_return, aio_return)
47weak_alias (__aio_return, aio_return64)
48#endif
49