1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*
28 * Copyright (c) 2012 by Delphix. All rights reserved.
29 */
30
31/*
32 * Assertion:
33 * Create two directory trees in zfs filesystem, and rename
34 * directory across the directory structure. ZFS can handle
35 * the race situation.
36 */
37
38/*
39 * Need to create the following directory structures before
40 * running this program:
41 *
42 * mkdir -p 1/2/3/4/5 a/b/c/d/e
43 */
44
45
46#include <stdlib.h>
47#include <unistd.h>
48#include <stdio.h>
49#include <strings.h>
50
51int
52main(int argc, char *argvp[])
53{
54	int i = 1;
55
56	switch (fork()) {
57	case -1:
58		perror("fork");
59		exit(1);
60		break;
61	case 0:
62		while (i > 0) {
63			int c_count = 0;
64			if (rename("a/b/c", "1/2/3/c") == 0)
65				c_count++;
66			if (rename("1/2/3/c", "a/b/c") == 0)
67				c_count++;
68			if (c_count) {
69				(void) fprintf(stderr, "c_count: %d", c_count);
70			}
71		}
72		break;
73	default:
74		while (i > 0) {
75			int p_count = 0;
76			if (rename("1", "a/b/c/d/e/1") == 0)
77				p_count++;
78			if (rename("a/b/c/d/e/1", "1") == 0)
79				p_count++;
80			if (p_count) {
81				(void) fprintf(stderr, "p_count: %d", p_count);
82			}
83		}
84		break;
85	}
86
87	return (0);
88}
89