1 /* Asynchronous read.
2 Copyright (C) 1997-2022 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 #include <bits/wordsize.h>
20 #if __WORDSIZE == 64
21 # define aio_read64 XXX
22 # include <aio.h>
23 /* And undo the hack. */
24 # undef aio_read64
25 #else
26 # include <aio.h>
27 #endif
28
29 #include <aio_misc.h>
30 #include <shlib-compat.h>
31
32 int
__aio_read(struct aiocb * aiocbp)33 __aio_read (struct aiocb *aiocbp)
34 {
35 return (__aio_enqueue_request ((aiocb_union *) aiocbp, LIO_READ) == NULL
36 ? -1 : 0);
37 }
38
39 #if PTHREAD_IN_LIBC
40 versioned_symbol (libc, __aio_read, aio_read, GLIBC_2_34);
41 # if __WORDSIZE == 64
42 versioned_symbol (libc, __aio_read, aio_read64, GLIBC_2_34);
43 # endif
44 # if OTHER_SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_34)
45 compat_symbol (librt, __aio_read, aio_read, GLIBC_2_1);
46 # if __WORDSIZE == 64
47 compat_symbol (librt, __aio_read, aio_read64, GLIBC_2_1);
48 # endif
49 # endif
50 #else /* !PTHREAD_IN_LIBC */
51 strong_alias (__aio_read, aio_read)
52 # if __WORDSIZE == 64
53 weak_alias (__aio_read, aio_read64)
54 #endif
55 #endif /* !PTHREAD_IN_LIBC */
56