zfs-builds-mm/zfs-0.8.0/tests/zfs-tests/cmd/rename_dir/rename_dir.c

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2019-07-06 23:40:11 +02:00
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 2012 by Delphix. All rights reserved.
*/
/*
* Assertion:
* Create two directory trees in zfs filesystem, and rename
* directory across the directory structure. ZFS can handle
* the race situation.
*/
/*
* Need to create the following directory structures before
* running this program:
*
* mkdir -p 1/2/3/4/5 a/b/c/d/e
*/
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <strings.h>
int
main(int argc, char *argvp[])
{
int i = 1;
switch (fork()) {
case -1:
perror("fork");
exit(1);
break;
case 0:
while (i > 0) {
int c_count = 0;
if (rename("a/b/c", "1/2/3/c") == 0)
c_count++;
if (rename("1/2/3/c", "a/b/c") == 0)
c_count++;
if (c_count) {
(void) fprintf(stderr, "c_count: %d", c_count);
}
}
break;
default:
while (i > 0) {
int p_count = 0;
if (rename("1", "a/b/c/d/e/1") == 0)
p_count++;
if (rename("a/b/c/d/e/1", "1") == 0)
p_count++;
if (p_count) {
(void) fprintf(stderr, "p_count: %d", p_count);
}
}
break;
}
return (0);
}