1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2024 The FreeBSD Foundation
5 *
6 * This software were developed by Konstantin Belousov <kib@FreeBSD.org>
7 * under sponsorship from the FreeBSD Foundation.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31 #include <sys/aio.h>
32 #include <errno.h>
33 #include <stddef.h>
34
35 int
aio_read2(struct aiocb * iocb,int flags)36 aio_read2(struct aiocb *iocb, int flags)
37 {
38 int error;
39
40 if ((flags & ~(AIO_OP2_FOFFSET | AIO_OP2_VECTORED)) != 0) {
41 errno = EINVAL;
42 return (-1);
43 }
44 iocb->aio_lio_opcode = LIO_READ;
45 if ((flags & AIO_OP2_FOFFSET) != 0)
46 iocb->aio_lio_opcode |= LIO_FOFFSET;
47 if ((flags & AIO_OP2_VECTORED) != 0)
48 iocb->aio_lio_opcode |= LIO_VECTORED;
49
50 error = lio_listio(LIO_NOWAIT, &iocb, 1, NULL);
51 if (error == -1 && errno == EIO) {
52 error = aio_error(iocb);
53 if (error != -1 && error != 0)
54 errno = error;
55 error = -1;
56 }
57 return (error);
58 }
59