direct/fsx_test/yaffs_fsx.c

   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  *      WARNING--WARNING--WARNING
  23  *      This is not the original fsx.c. It has been modified to run with
  24  *      yaffs direct. Seek out the original fsx.c if you want to do anything
  25  *      else.
  26  *
  27  *
  28  *
  29  *      File:   fsx.c
  30  *      Author: Avadis Tevanian, Jr.
  31  *
  32  *      File system exerciser.
  33  *
  34  *      Rewrite and enhancements 1998-2001 Conrad Minshall -- conrad@mac.com
  35  *
  36  *      Various features from Joe Sokol, Pat Dirks, and Clark Warner.
  37  *
  38  *      Small changes to work under Linux -- davej@suse.de
  39  *
  40  *      Sundry porting patches from Guy Harris 12/2001
  41  *
  42  *      Checks for mmap last-page zero fill.
  43  *
  44  *      Modified heavily by Charles Manning to exercise via the
  45  *      yaffs direct interface.
  46  *
  47  */
  48
  49 #include <sys/types.h>
  50 #include <sys/stat.h>
  51 #ifdef _UWIN
  52 # include <sys/param.h>
  53 # include <limits.h>
  54 # include <time.h>
  55 # include <strings.h>
  56 #endif
  57 #include <fcntl.h>
  58 #include <sys/mman.h>
  59 #ifndef MAP_FILE
  60 # define MAP_FILE 0
  61 #endif
  62 #include <limits.h>
  63 #include <signal.h>
  64 #include <stdio.h>
  65 #include <stdlib.h>
  66 #include <string.h>
  67 #include <unistd.h>
  68 #include <stdarg.h>
  69 #include <errno.h>
  70 #include <time.h>
  71
  72 #include "yaffsfs.h"
  73
  74 #define NUMPRINTCOLUMNS 32      /* # columns of data to print on each line */
  75
  76 /*
  77  *      A log entry is an operation and a bunch of arguments.
  78  */
  79
  80 struct log_entry {
  81         int     operation;
  82         int     args[3];
  83 };
  84
  85 #define LOGSIZE 1000
  86
  87 struct log_entry        oplog[LOGSIZE]; /* the log */
  88 int                     logptr = 0;     /* current position in log */
  89 int                     logcount = 0;   /* total ops */
  90
  91 /*
  92  *      Define operations
  93  */
  94
  95 #define OP_READ         1
  96 #define OP_WRITE        2
  97 #define OP_TRUNCATE     3
  98 #define OP_CLOSEOPEN    4
  99 #define OP_MAPREAD      5
 100 #define OP_MAPWRITE     6
 101 #define OP_SKIPPED      7
 102
 103 int page_size;
 104 int page_mask;
 105
 106 char    *original_buf;                  /* a pointer to the original data */
 107 char    *good_buf;                      /* a pointer to the correct data */
 108 char    *temp_buf;                      /* a pointer to the current data */
 109 char    *fname;                         /* name of our test file */
 110 int     fd;                             /* fd for our test file */
 111
 112 off_t           file_size = 0;
 113 off_t           biggest = 0;
 114 char            state[256];
 115 unsigned long   testcalls = 0;          /* calls to function "test" */
 116
 117 unsigned long   simulatedopcount = 0;   /* -b flag */
 118 int     closeprob = 0;                  /* -c flag */
 119 int     debug = 0;                      /* -d flag */
 120 unsigned long   debugstart = 0;         /* -D flag */
 121 unsigned long   maxfilelen = 256 * 1024;        /* -l flag */
 122 int     sizechecks = 1;                 /* -n flag disables them */
 123 int     maxoplen = 64 * 1024;           /* -o flag */
 124 int     quiet = 0;                      /* -q flag */
 125 unsigned long progressinterval = 0;     /* -p flag */
 126 int     readbdy = 1;                    /* -r flag */
 127 int     style = 0;                      /* -s flag */
 128 int     truncbdy = 1;                   /* -t flag */
 129 int     writebdy = 1;                   /* -w flag */
 130 long    monitorstart = -1;              /* -m flag */
 131 long    monitorend = -1;                /* -m flag */
 132 int     lite = 0;                       /* -L flag */
 133 <<<<<<< yaffs_fsx.c
 134 long    numops = 5000;                  /* -N flag */
 135 =======
 136 long    numops = /*-1 */ 100000;                        /* -N flag */
 137 >>>>>>> 1.3
 138 int     randomoplen = 1;                /* -O flag disables it */
 139 int     seed = 1;                       /* -S flag */
 140
 141 int     mapped_writes = 0;            /* yaffs direct does not support mmapped files */
 142 int     mapped_reads = 0;
 143
 144 int     fsxgoodfd = 0;
 145 FILE *  fsxlogf = NULL;
 146 int badoff = -1;
 147 int closeopen = 0;
 148
 149
 150 void
 151 vwarnc(code, fmt, ap)
 152         int code;
 153         const char *fmt;
 154         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
 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 void
 176 prt(char *fmt, ...)
 177 {
 178         va_list args;
 179
 180         va_start(args, fmt);
 181         vfprintf(stdout, fmt, args);
 182         if (fsxlogf)
 183                 vfprintf(fsxlogf, fmt, args);
 184         va_end(args);
 185 }
 186
 187 void
 188 prterr(char *prefix)
 189 {
 190         prt("%s%s%s\n", prefix, prefix ? ": " : "", strerror(errno));
 191 }
 192
 193
 194 void
 195 log4(int operation, int arg0, int arg1, int arg2)
 196 {
 197         struct log_entry *le;
 198
 199         le = &oplog[logptr];
 200         le->operation = operation;
 201         if (closeopen)
 202                 le->operation = ~ le->operation;
 203         le->args[0] = arg0;
 204         le->args[1] = arg1;
 205         le->args[2] = arg2;
 206         logptr++;
 207         logcount++;
 208         if (logptr >= LOGSIZE)
 209                 logptr = 0;
 210 }
 211
 212
 213 void
 214 logdump(void)
 215 {
 216         int     i, count, down;
 217         struct log_entry        *lp;
 218
 219         prt("LOG DUMP (%d total operations):\n", logcount);
 220         if (logcount < LOGSIZE) {
 221                 i = 0;
 222                 count = logcount;
 223         } else {
 224                 i = logptr;
 225                 count = LOGSIZE;
 226         }
 227         for ( ; count > 0; count--) {
 228                 int opnum;
 229
 230                 opnum = i+1 + (logcount/LOGSIZE)*LOGSIZE;
 231                 prt("%d(%d mod 256): ", opnum, opnum%256);
 232                 lp = &oplog[i];
 233                 if ((closeopen = lp->operation < 0))
 234                         lp->operation = ~ lp->operation;
 235
 236                 switch (lp->operation) {
 237                 case OP_MAPREAD:
 238                         prt("MAPREAD\t0x%x thru 0x%x\t(0x%x bytes)",
 239                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 240                             lp->args[1]);
 241                         if (badoff >= lp->args[0] && badoff <
 242                                                      lp->args[0] + lp->args[1])
 243                                 prt("\t***RRRR***");
 244                         break;
 245                 case OP_MAPWRITE:
 246                         prt("MAPWRITE 0x%x thru 0x%x\t(0x%x bytes)",
 247                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 248                             lp->args[1]);
 249                         if (badoff >= lp->args[0] && badoff <
 250                                                      lp->args[0] + lp->args[1])
 251                                 prt("\t******WWWW");
 252                         break;
 253                 case OP_READ:
 254                         prt("READ\t0x%x thru 0x%x\t(0x%x bytes)",
 255                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 256                             lp->args[1]);
 257                         if (badoff >= lp->args[0] &&
 258                             badoff < lp->args[0] + lp->args[1])
 259                                 prt("\t***RRRR***");
 260                         break;
 261                 case OP_WRITE:
 262                         prt("WRITE\t0x%x thru 0x%x\t(0x%x bytes)",
 263                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 264                             lp->args[1]);
 265                         if (lp->args[0] > lp->args[2])
 266                                 prt(" HOLE");
 267                         else if (lp->args[0] + lp->args[1] > lp->args[2])
 268                                 prt(" EXTEND");
 269                         if ((badoff >= lp->args[0] || badoff >=lp->args[2]) &&
 270                             badoff < lp->args[0] + lp->args[1])
 271                                 prt("\t***WWWW");
 272                         break;
 273                 case OP_TRUNCATE:
 274                         down = lp->args[0] < lp->args[1];
 275                         prt("TRUNCATE %s\tfrom 0x%x to 0x%x",
 276                             down ? "DOWN" : "UP", lp->args[1], lp->args[0]);
 277                         if (badoff >= lp->args[!down] &&
 278                             badoff < lp->args[!!down])
 279                                 prt("\t******WWWW");
 280                         break;
 281                 case OP_SKIPPED:
 282                         prt("SKIPPED (no operation)");
 283                         break;
 284                 default:
 285                         prt("BOGUS LOG ENTRY (operation code = %d)!",
 286                             lp->operation);
 287                 }
 288                 if (closeopen)
 289                         prt("\n\t\tCLOSE/OPEN");
 290                 prt("\n");
 291                 i++;
 292                 if (i == LOGSIZE)
 293                         i = 0;
 294         }
 295 }
 296
 297
 298 void
 299 save_buffer(char *buffer, off_t bufferlength, int fd)
 300 {
 301         off_t ret;
 302         ssize_t byteswritten;
 303
 304         if (fd <= 0 || bufferlength == 0)
 305                 return;
 306
 307         if (bufferlength > SSIZE_MAX) {
 308                 prt("fsx flaw: overflow in save_buffer\n");
 309                 exit(67);
 310         }
 311         if (lite) {
 312                 off_t size_by_seek = yaffs_lseek(fd, (off_t)0, SEEK_END);
 313                 if (size_by_seek == (off_t)-1)
 314                         prterr("save_buffer: lseek eof");
 315                 else if (bufferlength > size_by_seek) {
 316                         warn("save_buffer: .fsxgood file too short... will save 0x%llx bytes instead of 0x%llx\n", (unsigned long long)size_by_seek,
 317                              (unsigned long long)bufferlength);
 318                         bufferlength = size_by_seek;
 319                 }
 320         }
 321
 322         ret = yaffs_lseek(fd, (off_t)0, SEEK_SET);
 323         if (ret == (off_t)-1)
 324                 prterr("save_buffer: lseek 0");
 325
 326         byteswritten = yaffs_write(fd, buffer, (size_t)bufferlength);
 327         if (byteswritten != bufferlength) {
 328                 if (byteswritten == -1)
 329                         prterr("save_buffer write");
 330                 else
 331                         warn("save_buffer: short write, 0x%x bytes instead of 0x%llx\n",
 332                              (unsigned)byteswritten,
 333                              (unsigned long long)bufferlength);
 334         }
 335 }
 336
 337
 338 void
 339 report_failure(int status)
 340 {
 341         logdump();
 342
 343         if (fsxgoodfd) {
 344                 if (good_buf) {
 345                         save_buffer(good_buf, file_size, fsxgoodfd);
 346                         prt("Correct content saved for comparison\n");
 347                         prt("(maybe hexdump \"%s\" vs \"%s.fsxgood\")\n",
 348                             fname, fname);
 349                 }
 350                 close(fsxgoodfd);
 351         }
 352         prt("Exiting with %d\n",status);
 353         exit(status);
 354 }
 355
 356
 357 #define short_at(cp) ((unsigned short)((*((unsigned char *)(cp)) << 8) | \
 358                                         *(((unsigned char *)(cp)) + 1)))
 359
 360 void
 361 check_buffers(unsigned offset, unsigned size)
 362 {
 363         unsigned char c, t;
 364         unsigned i = 0;
 365         unsigned n = 0;
 366         unsigned op = 0;
 367         unsigned bad = 0;
 368
 369         if (memcmp(good_buf + offset, temp_buf, size) != 0) {
 370                 prt("READ BAD DATA: offset = 0x%x, size = 0x%x\n",
 371                     offset, size);
 372                 prt("OFFSET\tGOOD\tBAD\tRANGE\n");
 373                 while (size > 0) {
 374                         c = good_buf[offset];
 375                         t = temp_buf[i];
 376                         if (c != t) {
 377                                 if (n == 0) {
 378                                         bad = short_at(&temp_buf[i]);
 379                                         prt("0x%5x\t0x%04x\t0x%04x", offset,
 380                                             short_at(&good_buf[offset]), bad);
 381                                         op = temp_buf[offset & 1 ? i+1 : i];
 382                                 }
 383                                 n++;
 384                                 badoff = offset;
 385                         }
 386                         offset++;
 387                         i++;
 388                         size--;
 389                 }
 390                 if (n) {
 391                         prt("\t0x%5x\n", n);
 392                         if (bad)
 393                                 prt("operation# (mod 256) for the bad data may be %u\n", ((unsigned)op & 0xff));
 394                         else
 395                                 prt("operation# (mod 256) for the bad data unknown, check HOLE and EXTEND ops\n");
 396                 } else
 397                         prt("????????????????\n");
 398                 report_failure(110);
 399         }
 400 }
 401
 402
 403 void
 404 check_size(void)
 405 {
 406         struct yaffs_stat       statbuf;
 407         off_t   size_by_seek;
 408
 409         if (yaffs_fstat(fd, &statbuf)) {
 410                 prterr("check_size: fstat");
 411                 statbuf.st_size = -1;
 412         }
 413         size_by_seek = yaffs_lseek(fd, (off_t)0, SEEK_END);
 414         if (file_size != statbuf.st_size || file_size != size_by_seek) {
 415                 prt("Size error: expected 0x%llx stat 0x%llx seek 0x%llx\n",
 416                     (unsigned long long)file_size,
 417                     (unsigned long long)statbuf.st_size,
 418                     (unsigned long long)size_by_seek);
 419                 report_failure(120);
 420         }
 421 }
 422
 423
 424 void
 425 check_trunc_hack(void)
 426 {
 427         struct yaffs_stat statbuf;
 428
 429         yaffs_ftruncate(fd, (off_t)0);
 430         yaffs_ftruncate(fd, (off_t)100000);
 431         yaffs_fstat(fd, &statbuf);
 432         if (statbuf.st_size != (off_t)100000) {
 433                 prt("no extend on truncate! not posix!\n");
 434                 exit(130);
 435         }
 436         yaffs_ftruncate(fd, (off_t)0);
 437 }
 438
 439
 440 void
 441 doread(unsigned offset, unsigned size)
 442 {
 443         off_t ret;
 444         unsigned iret;
 445
 446         offset -= offset % readbdy;
 447         if (size == 0) {
 448                 if (!quiet && testcalls > simulatedopcount)
 449                         prt("skipping zero size read\n");
 450                 log4(OP_SKIPPED, OP_READ, offset, size);
 451                 return;
 452         }
 453         if (size + offset > file_size) {
 454                 if (!quiet && testcalls > simulatedopcount)
 455                         prt("skipping seek/read past end of file\n");
 456                 log4(OP_SKIPPED, OP_READ, offset, size);
 457                 return;
 458         }
 459
 460         log4(OP_READ, offset, size, 0);
 461
 462         if (testcalls <= simulatedopcount)
 463                 return;
 464
 465         if (!quiet && ((progressinterval &&
 466                         testcalls % progressinterval == 0) ||
 467                        (debug &&
 468                         (monitorstart == -1 ||
 469                          (offset + size > monitorstart &&
 470                           (monitorend == -1 || offset <= monitorend))))))
 471                 prt("%lu read\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
 472                     offset, offset + size - 1, size);
 473         ret = yaffs_lseek(fd, (off_t)offset, SEEK_SET);
 474         if (ret == (off_t)-1) {
 475                 prterr("doread: lseek");
 476                 report_failure(140);
 477         }
 478         iret = yaffs_read(fd, temp_buf, size);
 479         if (iret != size) {
 480                 if (iret == -1)
 481                         prterr("doread: read");
 482                 else
 483                         prt("short read: 0x%x bytes instead of 0x%x\n",
 484                             iret, size);
 485                 report_failure(141);
 486         }
 487         check_buffers(offset, size);
 488 }
 489
 490
 491
 492
 493
 494 void
 495 gendata(char *original_buf, char *good_buf, unsigned offset, unsigned size)
 496 {
 497         while (size--) {
 498                 good_buf[offset] = testcalls % 256;
 499                 if (offset % 2)
 500                         good_buf[offset] += original_buf[offset];
 501                 offset++;
 502         }
 503 }
 504
 505
 506 void
 507 dowrite(unsigned offset, unsigned size)
 508 {
 509         off_t ret;
 510         unsigned iret;
 511
 512         offset -= offset % writebdy;
 513         if (size == 0) {
 514                 if (!quiet && testcalls > simulatedopcount)
 515                         prt("skipping zero size write\n");
 516                 log4(OP_SKIPPED, OP_WRITE, offset, size);
 517                 return;
 518         }
 519
 520         log4(OP_WRITE, offset, size, file_size);
 521
 522         gendata(original_buf, good_buf, offset, size);
 523         if (file_size < offset + size) {
 524                 if (file_size < offset)
 525                         memset(good_buf + file_size, '\0', offset - file_size);
 526                 file_size = offset + size;
 527                 if (lite) {
 528                         warn("Lite file size bug in fsx!");
 529                         report_failure(149);
 530                 }
 531         }
 532
 533         if (testcalls <= simulatedopcount)
 534                 return;
 535
 536         if (!quiet && ((progressinterval &&
 537                         testcalls % progressinterval == 0) ||
 538                        (debug &&
 539                         (monitorstart == -1 ||
 540                          (offset + size > monitorstart &&
 541                           (monitorend == -1 || offset <= monitorend))))))
 542                 prt("%lu write\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
 543                     offset, offset + size - 1, size);
 544         ret = yaffs_lseek(fd, (off_t)offset, SEEK_SET);
 545         if (ret == (off_t)-1) {
 546                 prterr("dowrite: lseek");
 547                 report_failure(150);
 548         }
 549         iret = yaffs_write(fd, good_buf + offset, size);
 550         if (iret != size) {
 551                 if (iret == -1)
 552                         prterr("dowrite: write");
 553                 else
 554                         prt("short write: 0x%x bytes instead of 0x%x\n",
 555                             iret, size);
 556                 report_failure(151);
 557         }
 558 }
 559
 560
 561
 562 void
 563 dotruncate(unsigned size)
 564 {
 565         int oldsize = file_size;
 566
 567         size -= size % truncbdy;
 568         if (size > biggest) {
 569                 biggest = size;
 570                 if (!quiet && testcalls > simulatedopcount)
 571                         prt("truncating to largest ever: 0x%x\n", size);
 572         }
 573
 574         log4(OP_TRUNCATE, size, (unsigned)file_size, 0);
 575
 576         if (size > file_size)
 577                 memset(good_buf + file_size, '\0', size - file_size);
 578         file_size = size;
 579
 580         if (testcalls <= simulatedopcount)
 581                 return;
 582
 583         if ((progressinterval && testcalls % progressinterval == 0) ||
 584             (debug && (monitorstart == -1 || monitorend == -1 ||
 585                        size <= monitorend)))
 586                 prt("%lu trunc\tfrom 0x%x to 0x%x\n", testcalls, oldsize, size);
 587         if (yaffs_ftruncate(fd, (off_t)size) == -1) {
 588                 prt("ftruncate1: %x\n", size);
 589                 prterr("dotruncate: ftruncate");
 590                 report_failure(160);
 591         }
 592 }
 593
 594
 595 void
 596 writefileimage()
 597 {
 598         ssize_t iret;
 599
 600         if (yaffs_lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) {
 601                 prterr("writefileimage: lseek");
 602                 report_failure(171);
 603         }
 604         iret = yaffs_write(fd, good_buf, file_size);
 605         if ((off_t)iret != file_size) {
 606                 if (iret == -1)
 607                         prterr("writefileimage: write");
 608                 else
 609                         prt("short write: 0x%x bytes instead of 0x%llx\n",
 610                             iret, (unsigned long long)file_size);
 611                 report_failure(172);
 612         }
 613         if (lite ? 0 : yaffs_ftruncate(fd, file_size) == -1) {
 614                 prt("ftruncate2: %llx\n", (unsigned long long)file_size);
 615                 prterr("writefileimage: ftruncate");
 616                 report_failure(173);
 617         }
 618 }
 619
 620
 621 void
 622 docloseopen(void)
 623 {
 624         if (testcalls <= simulatedopcount)
 625                 return;
 626
 627         if (debug)
 628                 prt("%lu close/open\n", testcalls);
 629         if (yaffs_close(fd)) {
 630                 prterr("docloseopen: close");
 631                 report_failure(180);
 632         }
 633         fd = yaffs_open(fname, O_RDWR, 0);
 634         if (fd < 0) {
 635                 prterr("docloseopen: open");
 636                 report_failure(181);
 637         }
 638 }
 639
 640
 641 void
 642 test(void)
 643 {
 644         unsigned long   offset;
 645         unsigned long   size = maxoplen;
 646         unsigned long   rv = random();
 647         unsigned long   op = rv % (3 + !lite + mapped_writes);
 648
 649         /* turn off the map read if necessary */
 650
 651         if (op == 2 && !mapped_reads)
 652             op = 0;
 653
 654         if (simulatedopcount > 0 && testcalls == simulatedopcount)
 655                 writefileimage();
 656
 657         testcalls++;
 658
 659         if (closeprob)
 660                 closeopen = (rv >> 3) < (1 << 28) / closeprob;
 661
 662         if (debugstart > 0 && testcalls >= debugstart)
 663                 debug = 1;
 664
 665         if (!quiet && testcalls < simulatedopcount && testcalls % 100000 == 0)
 666                 prt("%lu...\n", testcalls);
 667
 668         /*
 669          * READ:        op = 0
 670          * WRITE:       op = 1
 671          * MAPREAD:     op = 2
 672          * TRUNCATE:    op = 3
 673          * MAPWRITE:    op = 3 or 4
 674          */
 675         if (lite ? 0 : op == 3 && (style & 1) == 0) /* vanilla truncate? */
 676                 dotruncate(random() % maxfilelen);
 677         else {
 678                 if (randomoplen)
 679                         size = random() % (maxoplen+1);
 680                 if (lite ? 0 : op == 3)
 681                         dotruncate(size);
 682                 else {
 683                         offset = random();
 684                         if (op == 1 || op == (lite ? 3 : 4)) {
 685                                 offset %= maxfilelen;
 686                                 if (offset + size > maxfilelen)
 687                                         size = maxfilelen - offset;
 688                                 dowrite(offset, size);
 689                         } else {
 690                                 if (file_size)
 691                                         offset %= file_size;
 692                                 else
 693                                         offset = 0;
 694                                 if (offset + size > file_size)
 695                                         size = file_size - offset;
 696                                 doread(offset, size);
 697                         }
 698                 }
 699         }
 700         if (sizechecks && testcalls > simulatedopcount)
 701                 check_size();
 702         if (closeopen)
 703                 docloseopen();
 704 }
 705
 706
 707 void
 708 cleanup(sig)
 709         int     sig;
 710 {
 711         if (sig)
 712                 prt("signal %d\n", sig);
 713         prt("testcalls = %lu\n", testcalls);
 714         exit(sig);
 715 }
 716
 717
 718 void
 719 usage(void)
 720 {
 721         fprintf(stdout, "usage: %s",
 722                 "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\
 723         -b opnum: beginning operation number (default 1)\n\
 724         -c P: 1 in P chance of file close+open at each op (default infinity)\n\
 725         -d: debug output for all operations\n\
 726         -l flen: the upper bound on file size (default 262144)\n\
 727         -m startop:endop: monitor (print debug output) specified byte range (default 0:infinity)\n\
 728         -n: no verifications of file size\n\
 729         -o oplen: the upper bound on operation size (default 65536)\n\
 730         -p progressinterval: debug output at specified operation interval\n\
 731         -q: quieter operation\n\
 732         -r readbdy: 4096 would make reads page aligned (default 1)\n\
 733         -s style: 1 gives smaller truncates (default 0)\n\
 734         -t truncbdy: 4096 would make truncates page aligned (default 1)\n\
 735         -w writebdy: 4096 would make writes page aligned (default 1)\n\
 736         -D startingop: debug output starting at specified operation\n\
 737         -L: fsxLite - no file creations & no file size changes\n\
 738         -N numops: total # operations to do (default infinity)\n\
 739         -O: use oplen (see -o flag) for every op (default random)\n\
 740         -P dirpath: save .fsxlog and .fsxgood files in dirpath (default ./)\n\
 741         -S seed: for random # generator (default 1) 0 gets timestamp\n\
 742         fname: this filename is REQUIRED (no default)\n");
 743         exit(90);
 744 }
 745
 746
 747 int
 748 getnum(char *s, char **e)
 749 {
 750         int ret = -1;
 751
 752         *e = (char *) 0;
 753         ret = strtol(s, e, 0);
 754         if (*e)
 755                 switch (**e) {
 756                 case 'b':
 757                 case 'B':
 758                         ret *= 512;
 759                         *e = *e + 1;
 760                         break;
 761                 case 'k':
 762                 case 'K':
 763                         ret *= 1024;
 764                         *e = *e + 1;
 765                         break;
 766                 case 'm':
 767                 case 'M':
 768                         ret *= 1024*1024;
 769                         *e = *e + 1;
 770                         break;
 771                 case 'w':
 772                 case 'W':
 773                         ret *= 4;
 774                         *e = *e + 1;
 775                         break;
 776                 }
 777         return (ret);
 778 }
 779
 780
 781 #define BASE_NAME "/flash/yaffs2"
 782
 783 int
 784 main(int argc, char **argv)
 785 {
 786         int     i, style, ch;
 787         char    *endp;
 788         char goodfile[1024];
 789         char logfile[1024];
 790
 791         goodfile[0] = 0;
 792         logfile[0] = 0;
 793
 794         page_size = getpagesize();
 795         page_mask = page_size - 1;
 796
 797         setvbuf(stdout, (char *)0, _IOLBF, 0); /* line buffered stdout */
 798
 799         while ((ch = getopt(argc, argv, "b:c:dl:m:no:p:qr:s:t:w:D:LN:OP:RS:W"))
 800                != EOF)
 801                 switch (ch) {
 802                 case 'b':
 803                         simulatedopcount = getnum(optarg, &endp);
 804                         if (!quiet)
 805                                 fprintf(stdout, "Will begin at operation %ld\n",
 806                                         simulatedopcount);
 807                         if (simulatedopcount == 0)
 808                                 usage();
 809                         simulatedopcount -= 1;
 810                         break;
 811                 case 'c':
 812                         closeprob = getnum(optarg, &endp);
 813                         if (!quiet)
 814                                 fprintf(stdout,
 815                                         "Chance of close/open is 1 in %d\n",
 816                                         closeprob);
 817                         if (closeprob <= 0)
 818                                 usage();
 819                         break;
 820                 case 'd':
 821                         debug = 1;
 822                         break;
 823                 case 'l':
 824                         maxfilelen = getnum(optarg, &endp);
 825                         if (maxfilelen <= 0)
 826                                 usage();
 827                         break;
 828                 case 'm':
 829                         monitorstart = getnum(optarg, &endp);
 830                         if (monitorstart < 0)
 831                                 usage();
 832                         if (!endp || *endp++ != ':')
 833                                 usage();
 834                         monitorend = getnum(endp, &endp);
 835                         if (monitorend < 0)
 836                                 usage();
 837                         if (monitorend == 0)
 838                                 monitorend = -1; /* aka infinity */
 839                         debug = 1;
 840                 case 'n':
 841                         sizechecks = 0;
 842                         break;
 843                 case 'o':
 844                         maxoplen = getnum(optarg, &endp);
 845                         if (maxoplen <= 0)
 846                                 usage();
 847                         break;
 848                 case 'p':
 849                         progressinterval = getnum(optarg, &endp);
 850                         if (progressinterval < 0)
 851                                 usage();
 852                         break;
 853                 case 'q':
 854                         quiet = 1;
 855                         break;
 856                 case 'r':
 857                         readbdy = getnum(optarg, &endp);
 858                         if (readbdy <= 0)
 859                                 usage();
 860                         break;
 861                 case 's':
 862                         style = getnum(optarg, &endp);
 863                         if (style < 0 || style > 1)
 864                                 usage();
 865                         break;
 866                 case 't':
 867                         truncbdy = getnum(optarg, &endp);
 868                         if (truncbdy <= 0)
 869                                 usage();
 870                         break;
 871                 case 'w':
 872                         writebdy = getnum(optarg, &endp);
 873                         if (writebdy <= 0)
 874                                 usage();
 875                         break;
 876                 case 'D':
 877                         debugstart = getnum(optarg, &endp);
 878                         if (debugstart < 1)
 879                                 usage();
 880                         break;
 881                 case 'L':
 882                         lite = 1;
 883                         break;
 884                 case 'N':
 885                         numops = getnum(optarg, &endp);
 886                         if (numops < 0)
 887                                 usage();
 888                         break;
 889                 case 'O':
 890                         randomoplen = 0;
 891                         break;
 892                 case 'P':
 893                         strncpy(goodfile, optarg, sizeof(goodfile));
 894                         strcat(goodfile, "/");
 895                         strncpy(logfile, optarg, sizeof(logfile));
 896                         strcat(logfile, "/");
 897                         break;
 898                 case 'R':
 899                         mapped_reads = 0;
 900                         break;
 901                 case 'S':
 902                         seed = getnum(optarg, &endp);
 903                         if (seed == 0)
 904                                 seed = time(0) % 10000;
 905                         if (!quiet)
 906                                 fprintf(stdout, "Seed set to %d\n", seed);
 907                         if (seed < 0)
 908                                 usage();
 909                         break;
 910                 case 'W':
 911                         mapped_writes = 0;
 912                         if (!quiet)
 913                                 fprintf(stdout, "mapped writes DISABLED\n");
 914                         break;
 915
 916                 default:
 917                         usage();
 918                         /* NOTREACHED */
 919                 }
 920         argc -= optind;
 921         argv += optind;
 922
 923         yaffs_StartUp();
 924         yaffs_mount(BASE_NAME);
 925
 926         fname = BASE_NAME "/fsxdata";
 927
 928         signal(SIGHUP,  cleanup);
 929         signal(SIGINT,  cleanup);
 930         signal(SIGPIPE, cleanup);
 931         signal(SIGALRM, cleanup);
 932         signal(SIGTERM, cleanup);
 933         signal(SIGXCPU, cleanup);
 934         signal(SIGXFSZ, cleanup);
 935         signal(SIGVTALRM,       cleanup);
 936         signal(SIGUSR1, cleanup);
 937         signal(SIGUSR2, cleanup);
 938
 939         initstate(seed, state, 256);
 940         setstate(state);
 941         fd = yaffs_open(fname, O_RDWR|(lite ? 0 : O_CREAT|O_TRUNC), 0666);
 942         if (fd < 0) {
 943                 prterr(fname);
 944                 exit(91);
 945         }
 946         strncat(goodfile, fname, 256);
 947         strcat (goodfile, ".fsxgood");
 948         fsxgoodfd = yaffs_open(goodfile, O_RDWR|O_CREAT|O_TRUNC, 0666);
 949         if (fsxgoodfd < 0) {
 950                 prterr(goodfile);
 951                 exit(92);
 952         }
 953         strncat(logfile, "fsx", 256);
 954         strcat (logfile, ".fsxlog");
 955         fsxlogf = fopen(logfile, "w");
 956         if (fsxlogf == NULL) {
 957                 prterr(logfile);
 958                 exit(93);
 959         }
 960         if (lite) {
 961                 off_t ret;
 962                 file_size = maxfilelen = yaffs_lseek(fd, (off_t)0, SEEK_END);
 963                 if (file_size == (off_t)-1) {
 964                         prterr(fname);
 965                         warn("main: lseek eof");
 966                         exit(94);
 967                 }
 968                 ret = yaffs_lseek(fd, (off_t)0, SEEK_SET);
 969                 if (ret == (off_t)-1) {
 970                         prterr(fname);
 971                         warn("main: lseek 0");
 972                         exit(95);
 973                 }
 974         }
 975         original_buf = (char *) malloc(maxfilelen);
 976         for (i = 0; i < maxfilelen; i++)
 977                 original_buf[i] = random() % 256;
 978         good_buf = (char *) malloc(maxfilelen);
 979         memset(good_buf, '\0', maxfilelen);
 980         temp_buf = (char *) malloc(maxoplen);
 981         memset(temp_buf, '\0', maxoplen);
 982         if (lite) {     /* zero entire existing file */
 983                 ssize_t written;
 984
 985                 written = yaffs_write(fd, good_buf, (size_t)maxfilelen);
 986                 if (written != maxfilelen) {
 987                         if (written == -1) {
 988                                 prterr(fname);
 989                                 warn("main: error on write");
 990                         } else
 991                                 warn("main: short write, 0x%x bytes instead of 0x%x\n",
 992                                      (unsigned)written, maxfilelen);
 993                         exit(98);
 994                 }
 995         } else
 996                 check_trunc_hack();
 997
 998         while (numops == -1 || numops--)
 999                 test();
1000
1001         if (yaffs_close(fd)) {
1002                 prterr("close");
1003                 report_failure(99);
1004         }
1005
1006         yaffs_close(fsxgoodfd);
1007
1008         yaffs_unmount(BASE_NAME);
1009         prt("All operations completed A-OK!\n");
1010
1011         exit(0);
1012         return 0;
1013 }
1014