?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Fix UTIME_OMIT handling
[dragonfly.git] / test / stress / fsx / fsx.c
blobe5d56dcddfaec714594ddb78aba6da89776effe8
1 /*
2 * Copyright (c) 1998-2001 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * The contents of this file constitute Original Code as defined in and
7 * are subject to the Apple Public Source License Version 1.2 (the
8 * "License"). You may not use this file except in compliance with the
9 * License. Please obtain a copy of the License at
10 * http://www.apple.com/publicsource and read it before using this file.
11 *
12 * This Original Code and all software distributed under the License are
13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17 * License for the specific language governing rights and limitations
18 * under the License.
19 *
20 * @APPLE_LICENSE_HEADER_END@
21 *
22 * File: fsx.c
23 * Author: Avadis Tevanian, Jr.
24 *
25 * File system exerciser.
26 *
27 * Rewrite and enhancements 1998-2001 Conrad Minshall -- conrad@mac.com
28 *
29 * Various features from Joe Sokol, Pat Dirks, and Clark Warner.
30 *
31 * Small changes to work under Linux -- davej@suse.de
32 *
33 * Sundry porting patches from Guy Harris 12/2001
34 *
35 * Checks for mmap last-page zero fill.
36 *
37 * $FreeBSD: src/tools/regression/fsx/fsx.c,v 1.2 2003/04/23 23:42:23 jkh Exp $
38 */
39
40 #include <sys/param.h>
41 #include <sys/stat.h>
42 #include <fcntl.h>
43 #include <sys/mman.h>
44 #include <limits.h>
45 #include <signal.h>
46 #include <stdio.h>
47 #include <stdlib.h>
48 #include <string.h>
49 #include <unistd.h>
50 #include <stdarg.h>
51 #include <errno.h>
52 #include <setjmp.h>
53
54 #define NUMPRINTCOLUMNS 32 /* # columns of data to print on each line */
55
56 /*
57 * A log entry is an operation and a bunch of arguments.
58 */
59
60 struct log_entry {
61 int operation;
62 int args[3];
63 };
64
65 #define LOGSIZE 1000
66
67 struct log_entry oplog[LOGSIZE]; /* the log */
68 int logptr = 0; /* current position in log */
69 int logcount = 0; /* total ops */
70 int jmpbuf_good;
71 jmp_buf jmpbuf;
72
73 static void log4(int operation, int arg0, int arg1, int arg2);
74 static void vwarnc(int code, const char *fmt, va_list ap);
75 static void warn(const char * fmt, ...);
76 static void prt(const char *fmt, ...);
77 static void prterr(const char *prefix);
78 static void logdump(void);
79 static void save_buffer(char *buffer, off_t bufferlength, int fd);
80 static void report_failure(int status);
81 static void check_buffers(unsigned offset, unsigned size);
82 static void check_trunc_hack(void);
83 static void check_size(void);
84 static void doread(unsigned offset, unsigned size);
85 static void check_eofpage(const char *s, unsigned offset, char *p, int size);
86 static void domapread(unsigned offset, unsigned size);
87 static void gendata(char *original_buf, char *good_buf,
88 unsigned offset, unsigned size);
89 static void dowrite(unsigned offset, unsigned size);
90 static void domapwrite(unsigned offset, unsigned size);
91 static void dotruncate(unsigned size);
92 static void docloseopen(void);
93 static void test(void);
94 static void segv(int sig);
95 static void cleanup(int sig);
96 static void usage(void);
97 static int getnum(char *s, char **e);
98
99 /*
100 * Define operations
101 */
102
103 #define OP_READ 1
104 #define OP_WRITE 2
105 #define OP_TRUNCATE 3
106 #define OP_CLOSEOPEN 4
107 #define OP_MAPREAD 5
108 #define OP_MAPWRITE 6
109 #define OP_SKIPPED 7
110
111 int page_size;
112 int page_mask;
113
114 char *original_buf; /* a pointer to the original data */
115 char *good_buf; /* a pointer to the correct data */
116 char *temp_buf; /* a pointer to the current data */
117 char *fname; /* name of our test file */
118 int fd; /* fd for our test file */
119
120 off_t file_size = 0;
121 off_t biggest = 0;
122 char state[256];
123 unsigned long testcalls = 0; /* calls to function "test" */
124
125 unsigned long simulatedopcount = 0; /* -b flag */
126 int closeprob = 0; /* -c flag */
127 int debug = 0; /* -d flag */
128 unsigned long debugstart = 0; /* -D flag */
129 unsigned long maxfilelen = 256 * 1024; /* -l flag */
130 int sizechecks = 1; /* -n flag disables them */
131 int maxoplen = 64 * 1024; /* -o flag */
132 int quiet = 0; /* -q flag */
133 unsigned long progressinterval = 0; /* -p flag */
134 int readbdy = 1; /* -r flag */
135 int style = 0; /* -s flag */
136 int truncbdy = 1; /* -t flag */
137 int writebdy = 1; /* -w flag */
138 long monitorstart = -1; /* -m flag */
139 long monitorend = -1; /* -m flag */
140 int lite = 0; /* -L flag */
141 long numops = -1; /* -N flag */
142 int randomoplen = 1; /* -O flag disables it */
143 int seed = 1; /* -S flag */
144 int mapped_writes = 1; /* -W flag disables */
145 int mapped_reads = 1; /* -R flag disables it */
146 int fsxgoodfd = 0;
147 FILE * fsxlogf = NULL;
148 int badoff = -1;
149 int closeopen = 0;
150
151
152 static
153 void
154 vwarnc(int code, const char *fmt, va_list ap)
155 {
156 fprintf(stderr, "fsx: ");
157 if (fmt != NULL) {
158 vfprintf(stderr, fmt, ap);
159 fprintf(stderr, ": ");
160 }
161 fprintf(stderr, "%s\n", strerror(code));
162 }
163
164 static
165 void
166 warn(const char * fmt, ...)
167 {
168 va_list ap;
169 va_start(ap, fmt);
170 vwarnc(errno, fmt, ap);
171 va_end(ap);
172 }
173
174
175 static
176 void
177 prt(const char *fmt, ...)
178 {
179 va_list args;
180
181 va_start(args, fmt);
182 vfprintf(stdout, fmt, args);
183 va_end(args);
184 va_start(args, fmt);
185 if (fsxlogf)
186 vfprintf(fsxlogf, fmt, args);
187 va_end(args);
188 }
189
190 static
191 void
192 prterr(const char *prefix)
193 {
194 prt("%s%s%s\n", prefix, prefix ? ": " : "", strerror(errno));
195 }
196
197 static void
198 log4(int operation, int arg0, int arg1, int arg2)
199 {
200 struct log_entry *le;
201
202 le = &oplog[logptr];
203 le->operation = operation;
204 if (closeopen)
205 le->operation = ~ le->operation;
206 le->args[0] = arg0;
207 le->args[1] = arg1;
208 le->args[2] = arg2;
209 logptr++;
210 logcount++;
211 if (logptr >= LOGSIZE)
212 logptr = 0;
213 }
214
215
216 static
217 void
218 logdump(void)
219 {
220 int i, count, down;
221 struct log_entry *lp;
222
223 prt("LOG DUMP (%d total operations):\n", logcount);
224 if (logcount < LOGSIZE) {
225 i = 0;
226 count = logcount;
227 } else {
228 i = logptr;
229 count = LOGSIZE;
230 }
231 for ( ; count > 0; count--) {
232 int opnum;
233
234 opnum = i+1 + rounddown(logcount, LOGSIZE);
235 prt("%d(%d mod 256): ", opnum, opnum%256);
236 lp = &oplog[i];
237 if ((closeopen = lp->operation < 0))
238 lp->operation = ~ lp->operation;
239
240 switch (lp->operation) {
241 case OP_MAPREAD:
242 prt("MAPREAD\t0x%x thru 0x%x\t(0x%x bytes)",
243 lp->args[0], lp->args[0] + lp->args[1] - 1,
244 lp->args[1]);
245 if (badoff >= lp->args[0] && badoff <
246 lp->args[0] + lp->args[1])
247 prt("\t***RRRR***");
248 break;
249 case OP_MAPWRITE:
250 prt("MAPWRITE\t0x%x thru 0x%x\t(0x%x bytes)",
251 lp->args[0], lp->args[0] + lp->args[1] - 1,
252 lp->args[1]);
253 if (badoff >= lp->args[0] && badoff <
254 lp->args[0] + lp->args[1])
255 prt("\t******WWWW");
256 break;
257 case OP_READ:
258 prt("READ\t0x%x thru 0x%x\t(0x%x bytes)",
259 lp->args[0], lp->args[0] + lp->args[1] - 1,
260 lp->args[1]);
261 if (badoff >= lp->args[0] &&
262 badoff < lp->args[0] + lp->args[1])
263 prt("\t***RRRR***");
264 break;
265 case OP_WRITE:
266 prt("WRITE\t0x%x thru 0x%x\t(0x%x bytes)",
267 lp->args[0], lp->args[0] + lp->args[1] - 1,
268 lp->args[1]);
269 if (lp->args[0] > lp->args[2])
270 prt(" HOLE");
271 else if (lp->args[0] + lp->args[1] > lp->args[2])
272 prt(" EXTEND");
273 if ((badoff >= lp->args[0] || badoff >=lp->args[2]) &&
274 badoff < lp->args[0] + lp->args[1])
275 prt("\t***WWWW");
276 break;
277 case OP_TRUNCATE:
278 down = lp->args[0] < lp->args[1];
279 prt("TRUNCATE %s\tfrom 0x%x to 0x%x",
280 down ? "DOWN" : "UP", lp->args[1], lp->args[0]);
281 if (badoff >= lp->args[!down] &&
282 badoff < lp->args[!!down])
283 prt("\t******WWWW");
284 break;
285 case OP_SKIPPED:
286 prt("SKIPPED (no operation)");
287 break;
288 default:
289 prt("BOGUS LOG ENTRY (operation code = %d)!",
290 lp->operation);
291 }
292 if (closeopen)
293 prt("\n\t\tCLOSE/OPEN");
294 prt("\n");
295 i++;
296 if (i == LOGSIZE)
297 i = 0;
298 }
299 }
300
301 static
302 void
303 save_buffer(char *buffer, off_t bufferlength, int xfd)
304 {
305 off_t ret;
306 ssize_t byteswritten;
307
308 if (xfd <= 0 || bufferlength == 0)
309 return;
310
311 if (bufferlength > SSIZE_MAX) {
312 prt("fsx flaw: overflow in save_buffer\n");
313 exit(67);
314 }
315 if (lite) {
316 off_t size_by_seek = lseek(xfd, (off_t)0, SEEK_END);
317 if (size_by_seek == (off_t)-1)
318 prterr("save_buffer: lseek eof");
319 else if (bufferlength > size_by_seek) {
320 warn("save_buffer: .fsxgood file too short... "
321 "will save 0x%jx bytes instead of 0x%llx\n",
322 (intmax_t)size_by_seek,
323 (intmax_t)bufferlength);
324 bufferlength = size_by_seek;
325 }
326 }
327
328 ret = lseek(xfd, (off_t)0, SEEK_SET);
329 if (ret == (off_t)-1)
330 prterr("save_buffer: lseek 0");
331
332 byteswritten = write(xfd, buffer, (size_t)bufferlength);
333 if (byteswritten != bufferlength) {
334 if (byteswritten == -1)
335 prterr("save_buffer write");
336 else
337 warn("save_buffer: short write, "
338 "0x%x bytes instead of 0x%jx\n",
339 (unsigned)byteswritten,
340 (intmax_t)bufferlength);
341 }
342 }
343
344
345 static
346 void
347 report_failure(int status)
348 {
349 logdump();
350
351 if (fsxgoodfd) {
352 if (good_buf) {
353 save_buffer(good_buf, file_size, fsxgoodfd);
354 prt("Correct content saved for comparison\n");
355 prt("(maybe hexdump \"%s\" vs \"%s.fsxgood\")\n",
356 fname, fname);
357 }
358 close(fsxgoodfd);
359 }
360 exit(status);
361 }
362
363
364 #define short_at(cp) ((unsigned short)((*((unsigned char *)(cp)) << 8) | \
365 *(((unsigned char *)(cp)) + 1)))
366
367 static
368 void
369 check_buffers(unsigned offset, unsigned size)
370 {
371 unsigned char c, t;
372 unsigned i = 0;
373 unsigned n = 0;
374 unsigned op = 0;
375 unsigned bad = 0;
376
377 if (memcmp(good_buf + offset, temp_buf, size) != 0) {
378 prt("READ BAD DATA: offset = 0x%x, size = 0x%x\n",
379 offset, size);
380 prt("OFFSET\t\tGOOD\tBAD\tRANGE\n");
381 while (size > 0) {
382 c = good_buf[offset];
383 t = temp_buf[i];
384 if (c != t) {
385 if (n == 0) {
386 bad = short_at(&temp_buf[i]);
387 prt("0x%08x\t0x%04x\t0x%04x", offset,
388 short_at(&good_buf[offset]), bad);
389 op = temp_buf[offset & 1 ? i+1 : i];
390 }
391 n++;
392 badoff = offset;
393 }
394 offset++;
395 i++;
396 size--;
397 }
398 if (n) {
399 prt("\t0x%5x\n", n);
400 if (bad)
401 prt("operation# (mod 256) for the bad data may be %u\n", ((unsigned)op & 0xff));
402 else
403 prt("operation# (mod 256) for the bad data unknown, check HOLE and EXTEND ops\n");
404 } else
405 prt("????????????????\n");
406 report_failure(110);
407 }
408 }
409
410 static
411 void
412 check_size(void)
413 {
414 struct stat statbuf;
415 off_t size_by_seek;
416
417 if (fstat(fd, &statbuf)) {
418 prterr("check_size: fstat");
419 statbuf.st_size = -1;
420 }
421 size_by_seek = lseek(fd, (off_t)0, SEEK_END);
422 if (file_size != statbuf.st_size || file_size != size_by_seek) {
423 prt("Size error: expected 0x%llx stat 0x%llx seek 0x%llx\n",
424 (unsigned long long)file_size,
425 (unsigned long long)statbuf.st_size,
426 (unsigned long long)size_by_seek);
427 report_failure(120);
428 }
429 }
430
431 static
432 void
433 check_trunc_hack(void)
434 {
435 struct stat statbuf;
436
437 ftruncate(fd, (off_t)0);
438 ftruncate(fd, (off_t)100000);
439 fstat(fd, &statbuf);
440 if (statbuf.st_size != (off_t)100000) {
441 prt("no extend on truncate! not posix!\n");
442 exit(130);
443 }
444 ftruncate(fd, (off_t)0);
445 }
446
447 static
448 void
449 doread(unsigned offset, unsigned size)
450 {
451 off_t ret;
452 unsigned iret;
453
454 offset -= offset % readbdy;
455 if (size == 0) {
456 if (!quiet && testcalls > simulatedopcount)
457 prt("skipping zero size read\n");
458 log4(OP_SKIPPED, OP_READ, offset, size);
459 return;
460 }
461 if (size + offset > file_size) {
462 if (!quiet && testcalls > simulatedopcount)
463 prt("skipping seek/read past end of file\n");
464 log4(OP_SKIPPED, OP_READ, offset, size);
465 return;
466 }
467
468 log4(OP_READ, offset, size, 0);
469
470 if (testcalls <= simulatedopcount)
471 return;
472
473 if (!quiet && ((progressinterval &&
474 testcalls % progressinterval == 0) ||
475 (debug &&
476 (monitorstart == -1 ||
477 (offset + size > monitorstart &&
478 (monitorend == -1 || offset <= monitorend))))))
479 prt("%lu read\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
480 offset, offset + size - 1, size);
481 ret = lseek(fd, (off_t)offset, SEEK_SET);
482 if (ret == (off_t)-1) {
483 prterr("doread: lseek");
484 report_failure(140);
485 }
486 iret = read(fd, temp_buf, size);
487 if (iret != size) {
488 if (iret == -1)
489 prterr("doread: read");
490 else
491 prt("short read: 0x%x bytes instead of 0x%x\n",
492 iret, size);
493 report_failure(141);
494 }
495 check_buffers(offset, size);
496 }
497
498 static
499 void
500 check_eofpage(const char *s, unsigned offset, char *p, int size)
501 {
502 intptr_t last_page, should_be_zero;
503
504 if (offset + size <= (file_size & ~page_mask))
505 return;
506 /*
507 * we landed in the last page of the file
508 * test to make sure the VM system provided 0's
509 * beyond the true end of the file mapping
510 * (as required by mmap def in 1996 posix 1003.1)
511 */
512 last_page = ((intptr_t)p + (offset & page_mask) + size) & ~(intptr_t)page_mask;
513
514 for (should_be_zero = last_page + (file_size & page_mask);
515 should_be_zero < last_page + page_size;
516 should_be_zero++) {
517 if (*(char *)should_be_zero) {
518 prt("Mapped %s: non-zero data past EOF (0x%llx) page offset 0x%x is 0x%04x\n",
519 s, file_size - 1, should_be_zero & page_mask,
520 *(char *)(should_be_zero));
521 report_failure(205);
522 }
523 }
524 }
525
526 static
527 void
528 domapread(unsigned offset, unsigned size)
529 {
530 unsigned pg_offset;
531 unsigned map_size;
532 char *p;
533
534 offset -= offset % readbdy;
535 if (size == 0) {
536 if (!quiet && testcalls > simulatedopcount)
537 prt("skipping zero size read\n");
538 log4(OP_SKIPPED, OP_MAPREAD, offset, size);
539 return;
540 }
541 if (size + offset > file_size) {
542 if (!quiet && testcalls > simulatedopcount)
543 prt("skipping seek/read past end of file\n");
544 log4(OP_SKIPPED, OP_MAPREAD, offset, size);
545 return;
546 }
547
548 log4(OP_MAPREAD, offset, size, 0);
549
550 if (testcalls <= simulatedopcount)
551 return;
552
553 if (!quiet && ((progressinterval &&
554 testcalls % progressinterval == 0) ||
555 (debug &&
556 (monitorstart == -1 ||
557 (offset + size > monitorstart &&
558 (monitorend == -1 || offset <= monitorend))))))
559 prt("%lu mapread\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
560 offset, offset + size - 1, size);
561
562 pg_offset = offset & page_mask;
563 map_size = pg_offset + size;
564
565 if ((p = (char *)mmap(0, map_size, PROT_READ, MAP_FILE | MAP_SHARED, fd,
566 (off_t)(offset - pg_offset))) == (char *)-1) {
567 prterr("domapread: mmap");
568 report_failure(190);
569 }
570 if (setjmp(jmpbuf) == 0) {
571 jmpbuf_good = 1;
572 memcpy(temp_buf, p + pg_offset, size);
573 check_eofpage("Read", offset, p, size);
574 jmpbuf_good = 0;
575 } else {
576 report_failure(1901);
577 }
578
579 if (munmap(p, map_size) != 0) {
580 prterr("domapread: munmap");
581 report_failure(191);
582 }
583
584 check_buffers(offset, size);
585 }
586
587 static
588 void
589 gendata(char *obuf, char *gbuf, unsigned offset, unsigned size)
590 {
591 while (size--) {
592 gbuf[offset] = testcalls % 256;
593 if (offset % 2)
594 gbuf[offset] += obuf[offset];
595 offset++;
596 }
597 }
598
599 static
600 void
601 dowrite(unsigned offset, unsigned size)
602 {
603 off_t ret;
604 unsigned iret;
605
606 offset -= offset % writebdy;
607 if (size == 0) {
608 if (!quiet && testcalls > simulatedopcount)
609 prt("skipping zero size write\n");
610 log4(OP_SKIPPED, OP_WRITE, offset, size);
611 return;
612 }
613
614 log4(OP_WRITE, offset, size, file_size);
615
616 gendata(original_buf, good_buf, offset, size);
617 if (file_size < offset + size) {
618 if (file_size < offset)
619 memset(good_buf + file_size, '\0', offset - file_size);
620 file_size = offset + size;
621 if (lite) {
622 warn("Lite file size bug in fsx!");
623 report_failure(149);
624 }
625 }
626
627 if (testcalls <= simulatedopcount)
628 return;
629
630 if (!quiet && ((progressinterval &&
631 testcalls % progressinterval == 0) ||
632 (debug &&
633 (monitorstart == -1 ||
634 (offset + size > monitorstart &&
635 (monitorend == -1 || offset <= monitorend))))))
636 prt("%lu write\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
637 offset, offset + size - 1, size);
638 ret = lseek(fd, (off_t)offset, SEEK_SET);
639 if (ret == (off_t)-1) {
640 prterr("dowrite: lseek");
641 report_failure(150);
642 }
643 iret = write(fd, good_buf + offset, size);
644 if (iret != size) {
645 if (iret == -1)
646 prterr("dowrite: write");
647 else
648 prt("short write: 0x%x bytes instead of 0x%x\n",
649 iret, size);
650 report_failure(151);
651 }
652 }
653
654 static
655 void
656 domapwrite(unsigned offset, unsigned size)
657 {
658 unsigned pg_offset;
659 unsigned map_size;
660 off_t cur_filesize;
661 char *p;
662
663 offset -= offset % writebdy;
664 if (size == 0) {
665 if (!quiet && testcalls > simulatedopcount)
666 prt("skipping zero size write\n");
667 log4(OP_SKIPPED, OP_MAPWRITE, offset, size);
668 return;
669 }
670 cur_filesize = file_size;
671
672 log4(OP_MAPWRITE, offset, size, 0);
673
674 gendata(original_buf, good_buf, offset, size);
675 if (file_size < offset + size) {
676 if (file_size < offset)
677 memset(good_buf + file_size, '\0', offset - file_size);
678 file_size = offset + size;
679 if (lite) {
680 warn("Lite file size bug in fsx!");
681 report_failure(200);
682 }
683 }
684
685 if (testcalls <= simulatedopcount)
686 return;
687
688 if (!quiet && ((progressinterval &&
689 testcalls % progressinterval == 0) ||
690 (debug &&
691 (monitorstart == -1 ||
692 (offset + size > monitorstart &&
693 (monitorend == -1 || offset <= monitorend))))))
694 prt("%lu mapwrite\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
695 offset, offset + size - 1, size);
696
697 if (file_size > cur_filesize) {
698 if (ftruncate(fd, file_size) == -1) {
699 prterr("domapwrite: ftruncate");
700 exit(201);
701 }
702 }
703 pg_offset = offset & page_mask;
704 map_size = pg_offset + size;
705
706 if ((p = (char *)mmap(0, map_size, PROT_READ | PROT_WRITE,
707 MAP_FILE | MAP_SHARED, fd,
708 (off_t)(offset - pg_offset))) == (char *)-1) {
709 prterr("domapwrite: mmap");
710 report_failure(202);
711 }
712 if (setjmp(jmpbuf) == 0) {
713 jmpbuf_good = 1;
714 memcpy(p + pg_offset, good_buf + offset, size);
715 if (msync(p, map_size, 0) != 0) {
716 prterr("domapwrite: msync");
717 report_failure(203);
718 }
719 check_eofpage("Write", offset, p, size);
720 jmpbuf_good = 0;
721 } else {
722 report_failure(2021);
723 }
724
725 if (munmap(p, map_size) != 0) {
726 prterr("domapwrite: munmap");
727 report_failure(204);
728 }
729 }
730
731 static
732 void
733 dotruncate(unsigned size)
734 {
735 int oldsize = file_size;
736
737 size -= size % truncbdy;
738 if (size > biggest) {
739 biggest = size;
740 if (!quiet && testcalls > simulatedopcount)
741 prt("truncating to largest ever: 0x%x\n", size);
742 }
743
744 log4(OP_TRUNCATE, size, (unsigned)file_size, 0);
745
746 if (size > file_size)
747 memset(good_buf + file_size, '\0', size - file_size);
748 file_size = size;
749
750 if (testcalls <= simulatedopcount)
751 return;
752
753 if ((progressinterval && testcalls % progressinterval == 0) ||
754 (debug && (monitorstart == -1 || monitorend == -1 ||
755 size <= monitorend)))
756 prt("%lu trunc\tfrom 0x%x to 0x%x\n", testcalls, oldsize, size);
757 if (ftruncate(fd, (off_t)size) == -1) {
758 prt("ftruncate1: %x\n", size);
759 prterr("dotruncate: ftruncate");
760 report_failure(160);
761 }
762 }
763
764
765 void
766 writefileimage()
767 {
768 ssize_t iret;
769
770 if (lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) {
771 prterr("writefileimage: lseek");
772 report_failure(171);
773 }
774 iret = write(fd, good_buf, file_size);
775 if ((off_t)iret != file_size) {
776 if (iret == -1)
777 prterr("writefileimage: write");
778 else
779 prt("short write: 0x%x bytes instead of 0x%jx\n",
780 iret, (intmax_t)file_size);
781 report_failure(172);
782 }
783 if (lite ? 0 : ftruncate(fd, file_size) == -1) {
784 prt("ftruncate2: %jx\n", (intmax_t)file_size);
785 prterr("writefileimage: ftruncate");
786 report_failure(173);
787 }
788 }
789
790 static
791 void
792 docloseopen(void)
793 {
794 if (testcalls <= simulatedopcount)
795 return;
796
797 if (debug)
798 prt("%lu close/open\n", testcalls);
799 if (close(fd)) {
800 prterr("docloseopen: close");
801 report_failure(180);
802 }
803 fd = open(fname, O_RDWR, 0);
804 if (fd < 0) {
805 prterr("docloseopen: open");
806 report_failure(181);
807 }
808 }
809
810 static
811 void
812 test(void)
813 {
814 unsigned long offset;
815 unsigned long size = maxoplen;
816 unsigned long rv = random();
817 unsigned long op = rv % (3 + !lite + mapped_writes);
818
819 /* turn off the map read if necessary */
820
821 if (op == 2 && !mapped_reads)
822 op = 0;
823
824 if (simulatedopcount > 0 && testcalls == simulatedopcount)
825 writefileimage();
826
827 testcalls++;
828
829 if (closeprob)
830 closeopen = (rv >> 3) < (1 << 28) / closeprob;
831
832 if (debugstart > 0 && testcalls >= debugstart)
833 debug = 1;
834
835 if (!quiet && testcalls < simulatedopcount && testcalls % 100000 == 0)
836 prt("%lu...\n", testcalls);
837
838 /*
839 * READ: op = 0
840 * WRITE: op = 1
841 * MAPREAD: op = 2
842 * TRUNCATE: op = 3
843 * MAPWRITE: op = 3 or 4
844 */
845 if (lite ? 0 : op == 3 && style == 0) /* vanilla truncate? */
846 dotruncate(random() % maxfilelen);
847 else {
848 if (randomoplen)
849 size = random() % (maxoplen+1);
850 if (lite ? 0 : op == 3)
851 dotruncate(size);
852 else {
853 offset = random();
854 if (op == 1 || op == (lite ? 3 : 4)) {
855 offset %= maxfilelen;
856 if (offset + size > maxfilelen)
857 size = maxfilelen - offset;
858 if (op != 1)
859 domapwrite(offset, size);
860 else
861 dowrite(offset, size);
862 } else {
863 if (file_size)
864 offset %= file_size;
865 else
866 offset = 0;
867 if (offset + size > file_size)
868 size = file_size - offset;
869 if (op != 0)
870 domapread(offset, size);
871 else
872 doread(offset, size);
873 }
874 }
875 }
876 if (sizechecks && testcalls > simulatedopcount)
877 check_size();
878 if (closeopen)
879 docloseopen();
880 }
881
882 static
883 void
884 segv(int sig)
885 {
886 if (jmpbuf_good) {
887 jmpbuf_good = 0;
888 longjmp(jmpbuf, 1);
889 }
890 report_failure(9999);
891 }
892
893 static
894 void
895 cleanup(int sig)
896 {
897 if (sig)
898 prt("signal %d\n", sig);
899 prt("testcalls = %lu\n", testcalls);
900 exit(sig);
901 }
902
903 static
904 void
905 usage(void)
906 {
907 fprintf(stdout, "usage: %s",
908 "fsx [-dnqLOW] [-b opnum] [-c Prob] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [-N numops] [-P dirpath] [-S seed] fname\n\
909 -b opnum: beginning operation number (default 1)\n\
910 -c P: 1 in P chance of file close+open at each op (default infinity)\n\
911 -d: debug output for all operations\n\
912 -l flen: the upper bound on file size (default 262144)\n\
913 -m startop:endop: monitor (print debug output) specified byte range (default 0:infinity)\n\
914 -n: no verifications of file size\n\
915 -o oplen: the upper bound on operation size (default 65536)\n\
916 -p progressinterval: debug output at specified operation interval\n\
917 -q: quieter operation\n\
918 -r readbdy: 4096 would make reads page aligned (default 1)\n\
919 -s style: 1 gives smaller truncates (default 0)\n\
920 -t truncbdy: 4096 would make truncates page aligned (default 1)\n\
921 -w writebdy: 4096 would make writes page aligned (default 1)\n\
922 -D startingop: debug output starting at specified operation\n\
923 -L: fsxLite - no file creations & no file size changes\n\
924 -N numops: total # operations to do (default infinity)\n\
925 -O: use oplen (see -o flag) for every op (default random)\n\
926 -P dirpath: save .fsxlog and .fsxgood files in dirpath (default ./)\n\
927 -S seed: for random # generator (default 1) 0 gets timestamp\n\
928 -W: mapped write operations DISabled\n\
929 -R: mapped read operations DISabled)\n\
930 fname: this filename is REQUIRED (no default)\n");
931 exit(90);
932 }
933
934 static
935 int
936 getnum(char *s, char **e)
937 {
938 int ret = -1;
939
940 *e = NULL;
941 ret = strtol(s, e, 0);
942 if (*e)
943 switch (**e) {
944 case 'b':
945 case 'B':
946 ret *= 512;
947 *e = *e + 1;
948 break;
949 case 'k':
950 case 'K':
951 ret *= 1024;
952 *e = *e + 1;
953 break;
954 case 'm':
955 case 'M':
956 ret *= 1024*1024;
957 *e = *e + 1;
958 break;
959 case 'w':
960 case 'W':
961 ret *= 4;
962 *e = *e + 1;
963 break;
964 }
965 return (ret);
966 }
967
968
969 int
970 main(int argc, char **argv)
971 {
972 int i, ch;
973 char *endp;
974 char goodfile[1024];
975 char logfile[1024];
976
977 goodfile[0] = 0;
978 logfile[0] = 0;
979
980 page_size = getpagesize();
981 page_mask = page_size - 1;
982
983 setvbuf(stdout, NULL, _IOLBF, 0); /* line buffered stdout */
984
985 while ((ch = getopt(argc, argv, "b:c:dl:m:no:p:qr:s:t:w:D:LN:OP:RS:W"))
986 != EOF)
987 switch (ch) {
988 case 'b':
989 simulatedopcount = getnum(optarg, &endp);
990 if (!quiet)
991 fprintf(stdout, "Will begin at operation %ld\n",
992 simulatedopcount);
993 if (simulatedopcount == 0)
994 usage();
995 simulatedopcount -= 1;
996 break;
997 case 'c':
998 closeprob = getnum(optarg, &endp);
999 if (!quiet)
1000 fprintf(stdout,
1001 "Chance of close/open is 1 in %d\n",
1002 closeprob);
1003 if (closeprob <= 0)
1004 usage();
1005 break;
1006 case 'd':
1007 debug = 1;
1008 break;
1009 case 'l':
1010 maxfilelen = getnum(optarg, &endp);
1011 if (maxfilelen <= 0)
1012 usage();
1013 break;
1014 case 'm':
1015 monitorstart = getnum(optarg, &endp);
1016 if (monitorstart < 0)
1017 usage();
1018 if (!endp || *endp++ != ':')
1019 usage();
1020 monitorend = getnum(endp, &endp);
1021 if (monitorend < 0)
1022 usage();
1023 if (monitorend == 0)
1024 monitorend = -1; /* aka infinity */
1025 debug = 1;
1026 case 'n':
1027 sizechecks = 0;
1028 break;
1029 case 'o':
1030 maxoplen = getnum(optarg, &endp);
1031 if (maxoplen <= 0)
1032 usage();
1033 break;
1034 case 'p':
1035 progressinterval = getnum(optarg, &endp);
1036 if ((int)progressinterval < 0)
1037 usage();
1038 break;
1039 case 'q':
1040 quiet = 1;
1041 break;
1042 case 'r':
1043 readbdy = getnum(optarg, &endp);
1044 if (readbdy <= 0)
1045 usage();
1046 break;
1047 case 's':
1048 style = getnum(optarg, &endp);
1049 if (style < 0 || style > 1)
1050 usage();
1051 break;
1052 case 't':
1053 truncbdy = getnum(optarg, &endp);
1054 if (truncbdy <= 0)
1055 usage();
1056 break;
1057 case 'w':
1058 writebdy = getnum(optarg, &endp);
1059 if (writebdy <= 0)
1060 usage();
1061 break;
1062 case 'D':
1063 debugstart = getnum(optarg, &endp);
1064 if (debugstart < 1)
1065 usage();
1066 break;
1067 case 'L':
1068 lite = 1;
1069 break;
1070 case 'N':
1071 numops = getnum(optarg, &endp);
1072 if (numops < 0)
1073 usage();
1074 break;
1075 case 'O':
1076 randomoplen = 0;
1077 break;
1078 case 'P':
1079 strncpy(goodfile, optarg, sizeof(goodfile));
1080 strcat(goodfile, "/");
1081 strncpy(logfile, optarg, sizeof(logfile));
1082 strcat(logfile, "/");
1083 break;
1084 case 'R':
1085 mapped_reads = 0;
1086 break;
1087 case 'S':
1088 seed = getnum(optarg, &endp);
1089 if (seed == 0)
1090 seed = time(0) % 10000;
1091 if (!quiet)
1092 fprintf(stdout, "Seed set to %d\n", seed);
1093 if (seed < 0)
1094 usage();
1095 break;
1096 case 'W':
1097 mapped_writes = 0;
1098 if (!quiet)
1099 fprintf(stdout, "mapped writes DISABLED\n");
1100 break;
1101
1102 default:
1103 usage();
1104 /* NOTREACHED */
1105 }
1106 argc -= optind;
1107 argv += optind;
1108 if (argc != 1)
1109 usage();
1110 fname = argv[0];
1111
1112 signal(SIGHUP, cleanup);
1113 signal(SIGINT, cleanup);
1114 signal(SIGPIPE, cleanup);
1115 signal(SIGALRM, cleanup);
1116 signal(SIGTERM, cleanup);
1117 signal(SIGXCPU, cleanup);
1118 signal(SIGXFSZ, cleanup);
1119 signal(SIGVTALRM, cleanup);
1120 signal(SIGUSR1, cleanup);
1121 signal(SIGUSR2, cleanup);
1122 signal(SIGSEGV, segv);
1123
1124 initstate(seed, state, 256);
1125 setstate(state);
1126 fd = open(fname, O_RDWR|(lite ? 0 : O_CREAT|O_TRUNC), 0666);
1127 if (fd < 0) {
1128 prterr(fname);
1129 exit(91);
1130 }
1131 strncat(goodfile, fname, 256);
1132 strcat (goodfile, ".fsxgood");
1133 fsxgoodfd = open(goodfile, O_RDWR|O_CREAT|O_TRUNC, 0666);
1134 if (fsxgoodfd < 0) {
1135 prterr(goodfile);
1136 exit(92);
1137 }
1138 strncat(logfile, fname, 256);
1139 strcat (logfile, ".fsxlog");
1140 fsxlogf = fopen(logfile, "w");
1141 if (fsxlogf == NULL) {
1142 prterr(logfile);
1143 exit(93);
1144 }
1145 if (lite) {
1146 off_t ret;
1147 file_size = maxfilelen = lseek(fd, (off_t)0, SEEK_END);
1148 if (file_size == (off_t)-1) {
1149 prterr(fname);
1150 warn("main: lseek eof");
1151 exit(94);
1152 }
1153 ret = lseek(fd, (off_t)0, SEEK_SET);
1154 if (ret == (off_t)-1) {
1155 prterr(fname);
1156 warn("main: lseek 0");
1157 exit(95);
1158 }
1159 }
1160 original_buf = (char *) malloc(maxfilelen);
1161 for (i = 0; i < maxfilelen; i++)
1162 original_buf[i] = random() % 256;
1163 good_buf = (char *) malloc(maxfilelen);
1164 memset(good_buf, '\0', maxfilelen);
1165 temp_buf = (char *) malloc(maxoplen);
1166 memset(temp_buf, '\0', maxoplen);
1167 if (lite) { /* zero entire existing file */
1168 ssize_t written;
1169
1170 written = write(fd, good_buf, (size_t)maxfilelen);
1171 if (written != maxfilelen) {
1172 if (written == -1) {
1173 prterr(fname);
1174 warn("main: error on write");
1175 } else
1176 warn("main: short write, 0x%x bytes instead of 0x%x\n",
1177 (unsigned)written, maxfilelen);
1178 exit(98);
1179 }
1180 } else
1181 check_trunc_hack();
1182
1183 while (numops == -1 || numops--)
1184 test();
1185
1186 if (close(fd)) {
1187 prterr("close");
1188 report_failure(99);
1189 }
1190 prt("All operations completed A-OK!\n");
1191
1192 exit(0);
1193 return 0;
1194 }
1195
DragonFly BSD