xref: /freebsd/lib/libc/gen/aio_write2.c (revision e2257b31)
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
36 aio_write2(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_WRITE;
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