1 // SPDX-License-Identifier: CDDL-1.0 2 /* 3 * CDDL HEADER START 4 * 5 * The contents of this file are subject to the terms of the 6 * Common Development and Distribution License (the "License"). 7 * You may not use this file except in compliance with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or https://opensource.org/licenses/CDDL-1.0. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 /* 24 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 28 /* 29 * Copyright (c) 2012 by Delphix. All rights reserved. 30 */ 31 32 /* 33 * Assertion: 34 * Create two directory trees in zfs filesystem, and rename 35 * directory across the directory structure. ZFS can handle 36 * the race situation. 37 */ 38 39 /* 40 * Need to create the following directory structures before 41 * running this program: 42 * 43 * mkdir -p 1/2/3/4/5 a/b/c/d/e 44 */ 45 46 47 #include <stdlib.h> 48 #include <unistd.h> 49 #include <stdio.h> 50 51 int 52 main(void) 53 { 54 int i = 1; 55 56 switch (fork()) { 57 case -1: 58 perror("fork"); 59 exit(1); 60 break; 61 62 case 0: 63 while (i > 0) { 64 int c_count = 0; 65 if (rename("a/b/c", "1/2/3/c") == 0) 66 c_count++; 67 if (rename("1/2/3/c", "a/b/c") == 0) 68 c_count++; 69 if (c_count) 70 (void) fprintf(stderr, "c_count: %d", c_count); 71 } 72 _exit(0); 73 74 default: 75 while (i > 0) { 76 int p_count = 0; 77 if (rename("1", "a/b/c/d/e/1") == 0) 78 p_count++; 79 if (rename("a/b/c/d/e/1", "1") == 0) 80 p_count++; 81 if (p_count) 82 (void) fprintf(stderr, "p_count: %d", p_count); 83 } 84 return (0); 85 } 86 } 87