1716fd348SMartin Matuska /*
2716fd348SMartin Matuska * CDDL HEADER START
3716fd348SMartin Matuska *
4716fd348SMartin Matuska * The contents of this file are subject to the terms of the
5716fd348SMartin Matuska * Common Development and Distribution License (the "License").
6716fd348SMartin Matuska * You may not use this file except in compliance with the License.
7716fd348SMartin Matuska *
8716fd348SMartin Matuska * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9271171e0SMartin Matuska * or https://opensource.org/licenses/CDDL-1.0.
10716fd348SMartin Matuska * See the License for the specific language governing permissions
11716fd348SMartin Matuska * and limitations under the License.
12716fd348SMartin Matuska *
13716fd348SMartin Matuska * When distributing Covered Code, include this CDDL HEADER in each
14716fd348SMartin Matuska * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15716fd348SMartin Matuska * If applicable, add the following below this CDDL HEADER, with the
16716fd348SMartin Matuska * fields enclosed by brackets "[]" replaced with your own identifying
17716fd348SMartin Matuska * information: Portions Copyright [yyyy] [name of copyright owner]
18716fd348SMartin Matuska *
19716fd348SMartin Matuska * CDDL HEADER END
20716fd348SMartin Matuska */
21716fd348SMartin Matuska
22716fd348SMartin Matuska /*
23716fd348SMartin Matuska * Copyright 2018 Canonical. All rights reserved.
24716fd348SMartin Matuska */
25716fd348SMartin Matuska
26716fd348SMartin Matuska #include <stdio.h>
27716fd348SMartin Matuska #include <stdlib.h>
28716fd348SMartin Matuska #include <unistd.h>
29716fd348SMartin Matuska #include <fcntl.h>
30716fd348SMartin Matuska #include <sys/mman.h>
31716fd348SMartin Matuska #include <sys/types.h>
32716fd348SMartin Matuska #include <sys/stat.h>
33716fd348SMartin Matuska #include <libaio.h>
34716fd348SMartin Matuska #include <err.h>
35716fd348SMartin Matuska
36*dbd5678dSMartin Matuska static io_context_t io_ctx;
37716fd348SMartin Matuska
38716fd348SMartin Matuska static void
do_sync_io(struct iocb * iocb)39716fd348SMartin Matuska do_sync_io(struct iocb *iocb)
40716fd348SMartin Matuska {
41716fd348SMartin Matuska struct io_event event;
42716fd348SMartin Matuska struct iocb *iocbs[] = { iocb };
43716fd348SMartin Matuska struct timespec ts = { 30, 0 };
44716fd348SMartin Matuska
45716fd348SMartin Matuska if (io_submit(io_ctx, 1, iocbs) != 1)
46716fd348SMartin Matuska err(1, "io_submit failed");
47716fd348SMartin Matuska
48716fd348SMartin Matuska if (io_getevents(io_ctx, 0, 1, &event, &ts) != 1)
49716fd348SMartin Matuska err(1, "io_getevents failed");
50716fd348SMartin Matuska }
51716fd348SMartin Matuska
52716fd348SMartin Matuska int
main(int argc,char ** argv)53716fd348SMartin Matuska main(int argc, char **argv)
54716fd348SMartin Matuska {
55716fd348SMartin Matuska (void) argc;
56716fd348SMartin Matuska char *buf;
57716fd348SMartin Matuska int page_size = getpagesize();
58716fd348SMartin Matuska int buf_size = strtol(argv[2], NULL, 0);
59716fd348SMartin Matuska int rwfd;
60716fd348SMartin Matuska struct iocb iocb;
61716fd348SMartin Matuska
62716fd348SMartin Matuska if (io_queue_init(1024, &io_ctx))
63716fd348SMartin Matuska err(1, "io_queue_init failed");
64716fd348SMartin Matuska
65716fd348SMartin Matuska rwfd = open(argv[1], O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
66716fd348SMartin Matuska if (rwfd < 0)
67716fd348SMartin Matuska err(1, "open failed");
68716fd348SMartin Matuska
69716fd348SMartin Matuska if (ftruncate(rwfd, buf_size) < 0)
70716fd348SMartin Matuska err(1, "ftruncate failed");
71716fd348SMartin Matuska
72716fd348SMartin Matuska buf = mmap(0, page_size, PROT_READ | PROT_WRITE, MAP_SHARED, rwfd, 0);
73716fd348SMartin Matuska if (buf == MAP_FAILED)
74716fd348SMartin Matuska err(1, "mmap failed");
75716fd348SMartin Matuska
76716fd348SMartin Matuska (void) io_prep_pwrite(&iocb, rwfd, buf, buf_size, 0);
77716fd348SMartin Matuska do_sync_io(&iocb);
78716fd348SMartin Matuska
79716fd348SMartin Matuska (void) io_prep_pread(&iocb, rwfd, buf, buf_size, 0);
80716fd348SMartin Matuska do_sync_io(&iocb);
81716fd348SMartin Matuska
82716fd348SMartin Matuska if (close(rwfd))
83716fd348SMartin Matuska err(1, "close failed");
84716fd348SMartin Matuska
85716fd348SMartin Matuska if (io_queue_release(io_ctx) != 0)
86716fd348SMartin Matuska err(1, "io_queue_release failed");
87716fd348SMartin Matuska
88716fd348SMartin Matuska return (0);
89716fd348SMartin Matuska }
90