xref: /freebsd/tools/test/stress2/misc/fts2.sh (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c) 
1#!/bin/sh
2
3#
4# Copyright (c) 2015 EMC Corp.
5# All rights reserved.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions
9# are met:
10# 1. Redistributions of source code must retain the above copyright
11#    notice, this list of conditions and the following disclaimer.
12# 2. Redistributions in binary form must reproduce the above copyright
13#    notice, this list of conditions and the following disclaimer in the
14#    documentation and/or other materials provided with the distribution.
15#
16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26# SUCH DAMAGE.
27#
28
29# Show invalid fts_info value:
30
31# FAULT
32# -rw-------  1 root  wheel  - 4 13 jan 09:25 ./lockf.0.3676
33# fts_path: ./lockf.0.3676
34# fts_info: 13 FTS_SLNONE
35# fts_errno: 0 No error: 0
36
37[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
38
39. ../default.cfg
40
41cat > /tmp/fts2.c <<EOF
42#include <sys/param.h>
43#include <sys/stat.h>
44#include <sys/types.h>
45#include <sys/wait.h>
46
47#include <err.h>
48#include <errno.h>
49#include <fcntl.h>
50#include <fts.h>
51#include <signal.h>
52#include <stdint.h>
53#include <stdio.h>
54#include <stdlib.h>
55#include <string.h>
56#include <time.h>
57#include <unistd.h>
58
59#define LOOPS 1
60#define PARALLEL 7
61
62pid_t pid;
63time_t start;
64int fd;
65char file[128];
66
67char *txt[] = {
68	"NULL",
69	"FTS_D",
70	"FTS_DC",
71	"FTS_DEFAULT",
72	"FTS_DNR",
73	"FTS_DOT",
74	"FTS_DP",
75	"FTS_ERR",
76	"FTS_F",
77	"FTS_INIT",
78	"FTS_NS",
79	"FTS_NSOK",
80	"FTS_SL",
81	"FTS_SLNONE",
82	"FTS_W",
83	"15",
84	"16",
85	"17",
86};
87
88int
89get(void) {
90	int sem;
91	if (lockf(fd, F_LOCK, 0) == -1)
92		err(1, "lockf(%s, F_LOCK)", file);
93	if (read(fd, &sem, sizeof(sem)) != sizeof(sem))
94		err(1, "get: read(%d)", fd);
95	if (lseek(fd, 0, SEEK_SET) == -1)
96		err(1, "lseek");
97	if (lockf(fd, F_ULOCK, 0) == -1)
98		err(1, "lockf(%s, F_ULOCK)", file);
99	return (sem);
100}
101
102void
103incr(void) {
104	int sem;
105	if (lockf(fd, F_LOCK, 0) == -1)
106		err(1, "lockf(%s, F_LOCK)", file);
107	if (read(fd, &sem, sizeof(sem)) != sizeof(sem))
108		err(1, "incr: read(%d)", fd);
109	if (lseek(fd, 0, SEEK_SET) == -1)
110		err(1, "lseek");
111	sem++;
112	if (write(fd, &sem, sizeof(sem)) != sizeof(sem))
113		err(1, "incr: read");
114	if (lseek(fd, 0, SEEK_SET) == -1)
115		err(1, "lseek");
116	if (lockf(fd, F_ULOCK, 0) == -1)
117		err(1, "lockf(%s, F_ULOCK)", file);
118}
119
120void
121tlockf(void)
122{
123	int i;
124	int sem = 0;
125
126	usleep(arc4random() % 10000);
127	sprintf(file, "lockf.0.%d", getpid());
128	if ((fd = open(file,O_CREAT | O_TRUNC | O_RDWR, 0600)) == -1)
129		err(1, "creat(%s)", file);
130	if (write(fd, &sem, sizeof(sem)) != sizeof(sem))
131		err(1, "write");
132	if (lseek(fd, 0, SEEK_SET) == -1)
133		err(1, "lseek");
134
135	pid = fork();
136	if (pid == -1) {
137		perror("fork");
138		exit(2);
139	}
140
141	if (pid == 0) {	/* child */
142		for (i = 0; i < 100; i++) {
143			while ((get() & 1) == 0)
144				;
145			incr();
146		}
147		exit(0);
148	} else {	/* parent */
149		for (i = 0; i < 100; i++) {
150			while ((get() & 1) == 1)
151				;
152			incr();
153		}
154	}
155	close(fd);
156	waitpid(pid, &i, 0);
157	unlink(file);
158}
159
160void
161tmkdir(void)
162{
163	pid_t pid;
164	int i, j;
165	char name[80];
166
167	setproctitle(__func__);
168	usleep(arc4random() % 10000);
169	pid = getpid();
170	for (j = 0; j < LOOPS; j++) {
171		for (i = 0; i < 1000; i++) {
172			snprintf(name, sizeof(name), "dir.%d.%06d", pid, i);
173			if (mkdir(name, 0644) == -1)
174				err(1, "mkdir(%s)", name);
175		}
176		for (i = 0; i < 1000; i++) {
177			snprintf(name, sizeof(name), "dir.%d.%06d", pid, i);
178			if (rmdir(name) == -1)
179				err(1, "unlink(%s)", name);
180		}
181	}
182}
183
184void
185tfts(void)
186{
187	FTS *fts;
188	FTSENT *p;
189	int ftsoptions, i;
190	char *args[2];
191	char help[80];
192
193	usleep(arc4random() % 10000);
194	ftsoptions = FTS_LOGICAL;
195	args[0] = ".";
196	args[1] = 0;
197
198	for (i = 0; i < 10; i++) {
199		if ((fts = fts_open(args, ftsoptions, NULL)) == NULL)
200			err(1, "fts_open");
201
202		while ((p = fts_read(fts)) != NULL) {
203			if (p->fts_info == FTS_D ||   /* preorder directory   */
204			    p->fts_info == FTS_DNR || /* unreadable directory */
205			    p->fts_info == FTS_DOT || /* dot or dot-dot       */
206			    p->fts_info == FTS_DP ||  /* postorder directory  */
207			    p->fts_info == FTS_F ||   /* regular file         */
208			    p->fts_info == FTS_NS)    /* stat(2) failed       */
209				continue;
210			fprintf(stderr, "FAULT\n");
211			sprintf(help, "ls -lo %s", p->fts_path);
212			system(help);
213			fprintf(stderr, "fts_path: %s\n", p->fts_path);
214			fprintf(stderr, "fts_info: %d %s\n", p->fts_info,
215			    txt[p->fts_info]);
216			fprintf(stderr, "fts_errno: %d %s\n", p->fts_errno,
217			   strerror(p->fts_errno));
218		}
219
220		if (errno != 0 && errno != ENOENT)
221			err(1, "fts_read");
222		if (fts_close(fts) == -1)
223			err(1, "fts_close()");
224	}
225}
226
227void
228test(void)
229{
230
231	start = time(NULL);
232	if (fork() == 0) {
233		while (time(NULL) - start < 60)
234			tmkdir();
235		_exit(0);
236	}
237	if (fork() == 0) {
238		while (time(NULL) - start < 60)
239			tlockf();
240		_exit(0);
241	}
242	if (fork() == 0) {
243		while (time(NULL) - start < 60)
244			tfts();
245		_exit(0);
246	}
247
248	wait(NULL);
249	wait(NULL);
250	wait(NULL);
251
252	_exit(0);
253}
254
255int
256main(void)
257{
258	int i;
259
260	for (i = 0; i < PARALLEL; i++)
261		if (fork() == 0)
262			test();
263	for (i = 0; i < PARALLEL; i++)
264		wait(NULL);
265
266	return (0);
267}
268EOF
269mycc -o /tmp/fts2 -Wall -Wextra -O0 -g /tmp/fts2.c || exit 1
270
271mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
272[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart
273
274mdconfig -a -t swap -s 1g -u $mdstart || exit 1
275newfs md$mdstart > /dev/null
276mount /dev/md$mdstart $mntpoint
277
278(cd $mntpoint; /tmp/fts2)
279
280while mount | grep $mntpoint | grep -q /dev/md; do
281        umount $mntpoint || sleep 1
282done
283mdconfig -d -u $mdstart
284rm /tmp/fts2 /tmp/fts2.c
285