4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
31 * This file is part of Lustre, http://www.lustre.org/
32 * Lustre is a trademark of Sun Microsystems, Inc.
35 #define PATH_LENGTH 35
40 #include <sys/types.h>
48 char from[PATH_LENGTH];
52 unsigned int loop_count = 500;
53 int file_count = 1000;
67 void usage(const char *progname)
69 fprintf(stderr, "usage: %s [-n numfiles] [-s seed] [-v] [-x] [dir]\n"
70 "\t-c: only do the create step of first loop\n"
71 "\t-f: number of files to create/rename/unlink per loop\n"
72 "\t-n: number of test loops (0 to run forever)\n"
73 "\t-r: only do the rename step of first loop\n"
74 "\t-s: starting seed (equals loop number by default)\n"
76 "\t-x: don't exit on error\n", progname);
79 void handler(int sig) {
80 static long last_time;
83 signal(SIGINT, handler);
84 signal(SIGALRM, handler);
85 printf("%6lds %8d iterations %d/%d/%d errors",
86 now - start, loops, creat_errors, rename_errors, unlink_errors);
88 printf(" - use SIGQUIT (^\\) or ^C^C to kill\n");
94 else if (sig == SIGINT) {
95 if (now - last_time < 2)
105 int main(int argc, char *argv[])
108 char msg[100], *end = NULL;
112 while ((c = getopt(argc, argv, "cf:n:rs:vx")) != EOF) {
118 i = strtoul(optarg, &end, 0);
119 if (i && end != NULL && *end == '\0') {
122 fprintf(stderr, "bad file count '%s'\n",optarg);
128 i = strtoul(optarg, &end, 0);
129 if (i && end != NULL && *end == '\0') {
132 fprintf(stderr, "bad loop count '%s'\n",optarg);
141 i = strtoul(optarg, &end, 0);
142 if (end && *end == '\0') {
146 fprintf(stderr, "using random seed %u\n", seed);
161 names = malloc(sizeof(struct names) * file_count);
167 h2 = sprintf(msg, "%x", file_count); /* just to figure length */
168 h1 = (PATH_LENGTH - h2 - 2) / 4;
170 n = (1ULL << h1 * 4) - 1;
172 //printf("h1 = %d, h2 = %d n = %lu\n", h1, h2, n);
176 signal(SIGQUIT, handler);
177 signal(SIGINT, handler);
178 signal(SIGALRM, handler);
179 signal(SIGUSR1, handler);
182 if (argc > optind + 1) {
183 fprintf(stderr, "too many extra args %d\n", argc - optind);
186 } else if (argv[optind] != NULL) {
187 if (chdir(argv[optind]) < 0) {
188 snprintf(msg, sizeof(msg),
189 "chdir '%s'\n", argv[optind]);
195 while (!stop && loop_count != 0 && loops < loop_count) {
199 if (mkdir("tmp", S_IRWXU) == -1) {
203 if (chdir("tmp") == -1) {
208 for (i = 0; i < file_count ; i++) {
213 sprintf(names[i].from, "%0*x%0*x%0*x%0*x0%0*x",
214 h1, j, h1, k, h1, l, h1, m, h2, i);
215 sprintf(names[i].to, "%0*x%0*x%0*x%0*x1%0*x",
216 h1, j, h1, k, h1, l, h1, m, h2, i);
220 for (i = 0; i < file_count; i++) {
221 if (mknod(names[i].from, S_IFREG | S_IRWXU, 0) == -1) {
222 sprintf(msg, "loop %d.%d: creat %s",
223 loops, i, names[i].from);
226 if (!opt_exit_on_err)
234 for (i = 0; i < file_count; i++) {
235 if (rename(names[i].from, names[i].to) == -1) {
236 sprintf(msg, "loop %d.%d: rename %s to %s",
237 loops, i, names[i].from, names[i].to);
240 if (!opt_exit_on_err)
248 for (i = 0; i < file_count; i++) {
249 if (unlink(names[i].to) == -1) {
250 sprintf(msg, "loop %d.%d: unlink %s",
251 loops, i, names[i].to);
254 if (!opt_exit_on_err)
259 if (chdir("..") == -1) {
264 if (rmdir("tmp") == -1) {
265 if (chdir("tmp") == -1) {
266 perror("chdir tmp 2");
269 for (i = 0; i < file_count; i++) {
270 if (unlink(names[i].from) != -1) {
271 fprintf(stderr, "loop %d.%d: "
272 "unexpected file %s\n",
273 loops, i, names[i].to);
275 if (!opt_exit_on_err)
279 if (chdir("..") == -1) {
280 perror("chdir .. 2");
283 if (rmdir("tmp") == -1) {