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 long    numops = /*-1 */ 10000000;                      /* -N flag */
 134 int     randomoplen = 1;                /* -O flag disables it */
 135 int     seed = 1;                       /* -S flag */
 136
 137 int     mapped_writes = 0;            /* yaffs direct does not support mmapped files */
 138 int     mapped_reads = 0;
 139
 140 int     fsxgoodfd = 0;
 141 FILE *  fsxlogf = NULL;
 142 int badoff = -1;
 143 int closeopen = 0;
 144
 145
 146 void
 147 vwarnc(code, fmt, ap)
 148         int code;
 149         const char *fmt;
 150         va_list ap;
 151 {
 152         fprintf(stderr, "fsx: ");
 153         if (fmt != NULL) {
 154                 vfprintf(stderr, fmt, ap);
 155                 fprintf(stderr, ": ");
 156         }
 157         fprintf(stderr, "%s\n", strerror(code));
 158 }
 159
 160
 161 void
 162 warn(const char * fmt, ...)
 163 {
 164         va_list ap;
 165         va_start(ap, fmt);
 166         vwarnc(errno, fmt, ap);
 167         va_end(ap);
 168 }
 169
 170
 171 void
 172 prt(char *fmt, ...)
 173 {
 174         va_list args;
 175
 176         va_start(args, fmt);
 177         vfprintf(stdout, fmt, args);
 178         if (fsxlogf)
 179                 vfprintf(fsxlogf, fmt, args);
 180         va_end(args);
 181 }
 182
 183 void
 184 prterr(char *prefix)
 185 {
 186         prt("%s%s%s\n", prefix, prefix ? ": " : "", strerror(errno));
 187 }
 188
 189
 190 void
 191 log4(int operation, int arg0, int arg1, int arg2)
 192 {
 193         struct log_entry *le;
 194
 195         le = &oplog[logptr];
 196         le->operation = operation;
 197         if (closeopen)
 198                 le->operation = ~ le->operation;
 199         le->args[0] = arg0;
 200         le->args[1] = arg1;
 201         le->args[2] = arg2;
 202         logptr++;
 203         logcount++;
 204         if (logptr >= LOGSIZE)
 205                 logptr = 0;
 206 }
 207
 208
 209 void
 210 logdump(void)
 211 {
 212         int     i, count, down;
 213         struct log_entry        *lp;
 214
 215         prt("LOG DUMP (%d total operations):\n", logcount);
 216         if (logcount < LOGSIZE) {
 217                 i = 0;
 218                 count = logcount;
 219         } else {
 220                 i = logptr;
 221                 count = LOGSIZE;
 222         }
 223         for ( ; count > 0; count--) {
 224                 int opnum;
 225
 226                 opnum = i+1 + (logcount/LOGSIZE)*LOGSIZE;
 227                 prt("%d(%d mod 256): ", opnum, opnum%256);
 228                 lp = &oplog[i];
 229                 if ((closeopen = lp->operation < 0))
 230                         lp->operation = ~ lp->operation;
 231
 232                 switch (lp->operation) {
 233                 case OP_MAPREAD:
 234                         prt("MAPREAD\t0x%x thru 0x%x\t(0x%x bytes)",
 235                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 236                             lp->args[1]);
 237                         if (badoff >= lp->args[0] && badoff <
 238                                                      lp->args[0] + lp->args[1])
 239                                 prt("\t***RRRR***");
 240                         break;
 241                 case OP_MAPWRITE:
 242                         prt("MAPWRITE 0x%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******WWWW");
 248                         break;
 249                 case OP_READ:
 250                         prt("READ\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] &&
 254                             badoff < lp->args[0] + lp->args[1])
 255                                 prt("\t***RRRR***");
 256                         break;
 257                 case OP_WRITE:
 258                         prt("WRITE\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 (lp->args[0] > lp->args[2])
 262                                 prt(" HOLE");
 263                         else if (lp->args[0] + lp->args[1] > lp->args[2])
 264                                 prt(" EXTEND");
 265                         if ((badoff >= lp->args[0] || badoff >=lp->args[2]) &&
 266                             badoff < lp->args[0] + lp->args[1])
 267                                 prt("\t***WWWW");
 268                         break;
 269                 case OP_TRUNCATE:
 270                         down = lp->args[0] < lp->args[1];
 271                         prt("TRUNCATE %s\tfrom 0x%x to 0x%x",
 272                             down ? "DOWN" : "UP", lp->args[1], lp->args[0]);
 273                         if (badoff >= lp->args[!down] &&
 274                             badoff < lp->args[!!down])
 275                                 prt("\t******WWWW");
 276                         break;
 277                 case OP_SKIPPED:
 278                         prt("SKIPPED (no operation)");
 279                         break;
 280                 default:
 281                         prt("BOGUS LOG ENTRY (operation code = %d)!",
 282                             lp->operation);
 283                 }
 284                 if (closeopen)
 285                         prt("\n\t\tCLOSE/OPEN");
 286                 prt("\n");
 287                 i++;
 288                 if (i == LOGSIZE)
 289                         i = 0;
 290         }
 291 }
 292
 293
 294 void
 295 save_buffer(char *buffer, off_t bufferlength, int fd)
 296 {
 297         off_t ret;
 298         ssize_t byteswritten;
 299
 300         if (fd <= 0 || bufferlength == 0)
 301                 return;
 302
 303         if (bufferlength > SSIZE_MAX) {
 304                 prt("fsx flaw: overflow in save_buffer\n");
 305                 exit(67);
 306         }
 307         if (lite) {
 308                 off_t size_by_seek = yaffs_lseek(fd, (off_t)0, SEEK_END);
 309                 if (size_by_seek == (off_t)-1)
 310                         prterr("save_buffer: lseek eof");
 311                 else if (bufferlength > size_by_seek) {
 312                         warn("save_buffer: .fsxgood file too short... will save 0x%llx bytes instead of 0x%llx\n", (unsigned long long)size_by_seek,
 313                              (unsigned long long)bufferlength);
 314                         bufferlength = size_by_seek;
 315                 }
 316         }
 317
 318         ret = yaffs_lseek(fd, (off_t)0, SEEK_SET);
 319         if (ret == (off_t)-1)
 320                 prterr("save_buffer: lseek 0");
 321
 322         byteswritten = yaffs_write(fd, buffer, (size_t)bufferlength);
 323         if (byteswritten != bufferlength) {
 324                 if (byteswritten == -1)
 325                         prterr("save_buffer write");
 326                 else
 327                         warn("save_buffer: short write, 0x%x bytes instead of 0x%llx\n",
 328                              (unsigned)byteswritten,
 329                              (unsigned long long)bufferlength);
 330         }
 331 }
 332
 333
 334 void
 335 report_failure(int status)
 336 {
 337         logdump();
 338
 339         if (fsxgoodfd) {
 340                 if (good_buf) {
 341                         save_buffer(good_buf, file_size, fsxgoodfd);
 342                         prt("Correct content saved for comparison\n");
 343                         prt("(maybe hexdump \"%s\" vs \"%s.fsxgood\")\n",
 344                             fname, fname);
 345                 }
 346                 close(fsxgoodfd);
 347         }
 348         prt("Exiting with %d\n",status);
 349         exit(status);
 350 }
 351
 352
 353 #define short_at(cp) ((unsigned short)((*((unsigned char *)(cp)) << 8) | \
 354                                         *(((unsigned char *)(cp)) + 1)))
 355
 356 void
 357 check_buffers(unsigned offset, unsigned size)
 358 {
 359         unsigned char c, t;
 360         unsigned i = 0;
 361         unsigned n = 0;
 362         unsigned op = 0;
 363         unsigned bad = 0;
 364
 365         if (memcmp(good_buf + offset, temp_buf, size) != 0) {
 366                 prt("READ BAD DATA: offset = 0x%x, size = 0x%x\n",
 367                     offset, size);
 368                 prt("OFFSET\tGOOD\tBAD\tRANGE\n");
 369                 while (size > 0) {
 370                         c = good_buf[offset];
 371                         t = temp_buf[i];
 372                         if (c != t) {
 373                                 if (n == 0) {
 374                                         bad = short_at(&temp_buf[i]);
 375                                         prt("0x%5x\t0x%04x\t0x%04x", offset,
 376                                             short_at(&good_buf[offset]), bad);
 377                                         op = temp_buf[offset & 1 ? i+1 : i];
 378                                 }
 379                                 n++;
 380                                 badoff = offset;
 381                         }
 382                         offset++;
 383                         i++;
 384                         size--;
 385                 }
 386                 if (n) {
 387                         prt("\t0x%5x\n", n);
 388                         if (bad)
 389                                 prt("operation# (mod 256) for the bad data may be %u\n", ((unsigned)op & 0xff));
 390                         else
 391                                 prt("operation# (mod 256) for the bad data unknown, check HOLE and EXTEND ops\n");
 392                 } else
 393                         prt("????????????????\n");
 394                 report_failure(110);
 395         }
 396 }
 397
 398
 399 void
 400 check_size(void)
 401 {
 402         struct yaffs_stat       statbuf;
 403         off_t   size_by_seek;
 404
 405         if (yaffs_fstat(fd, &statbuf)) {
 406                 prterr("check_size: fstat");
 407                 statbuf.st_size = -1;
 408         }
 409         size_by_seek = yaffs_lseek(fd, (off_t)0, SEEK_END);
 410         if (file_size != statbuf.st_size || file_size != size_by_seek) {
 411                 prt("Size error: expected 0x%llx stat 0x%llx seek 0x%llx\n",
 412                     (unsigned long long)file_size,
 413                     (unsigned long long)statbuf.st_size,
 414                     (unsigned long long)size_by_seek);
 415                 report_failure(120);
 416         }
 417 }
 418
 419
 420 void
 421 check_trunc_hack(void)
 422 {
 423         struct yaffs_stat statbuf;
 424
 425         yaffs_ftruncate(fd, (off_t)0);
 426         yaffs_ftruncate(fd, (off_t)100000);
 427         yaffs_fstat(fd, &statbuf);
 428         if (statbuf.st_size != (off_t)100000) {
 429                 prt("no extend on truncate! not posix!\n");
 430                 exit(130);
 431         }
 432         yaffs_ftruncate(fd, (off_t)0);
 433 }
 434
 435
 436 void
 437 doread(unsigned offset, unsigned size)
 438 {
 439         off_t ret;
 440         unsigned iret;
 441
 442         offset -= offset % readbdy;
 443         if (size == 0) {
 444                 if (!quiet && testcalls > simulatedopcount)
 445                         prt("skipping zero size read\n");
 446                 log4(OP_SKIPPED, OP_READ, offset, size);
 447                 return;
 448         }
 449         if (size + offset > file_size) {
 450                 if (!quiet && testcalls > simulatedopcount)
 451                         prt("skipping seek/read past end of file\n");
 452                 log4(OP_SKIPPED, OP_READ, offset, size);
 453                 return;
 454         }
 455
 456         log4(OP_READ, offset, size, 0);
 457
 458         if (testcalls <= simulatedopcount)
 459                 return;
 460
 461         if (!quiet && ((progressinterval &&
 462                         testcalls % progressinterval == 0) ||
 463                        (debug &&
 464                         (monitorstart == -1 ||
 465                          (offset + size > monitorstart &&
 466                           (monitorend == -1 || offset <= monitorend))))))
 467                 prt("%lu read\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
 468                     offset, offset + size - 1, size);
 469         ret = yaffs_lseek(fd, (off_t)offset, SEEK_SET);
 470         if (ret == (off_t)-1) {
 471                 prterr("doread: lseek");
 472                 report_failure(140);
 473         }
 474         iret = yaffs_read(fd, temp_buf, size);
 475         if (iret != size) {
 476                 if (iret == -1)
 477                         prterr("doread: read");
 478                 else
 479                         prt("short read: 0x%x bytes instead of 0x%x\n",
 480                             iret, size);
 481                 report_failure(141);
 482         }
 483         check_buffers(offset, size);
 484 }
 485
 486
 487
 488
 489
 490 void
 491 gendata(char *original_buf, char *good_buf, unsigned offset, unsigned size)
 492 {
 493         while (size--) {
 494                 good_buf[offset] = testcalls % 256;
 495                 if (offset % 2)
 496                         good_buf[offset] += original_buf[offset];
 497                 offset++;
 498         }
 499 }
 500
 501
 502 void
 503 dowrite(unsigned offset, unsigned size)
 504 {
 505         off_t ret;
 506         unsigned iret;
 507
 508         offset -= offset % writebdy;
 509         if (size == 0) {
 510                 if (!quiet && testcalls > simulatedopcount)
 511                         prt("skipping zero size write\n");
 512                 log4(OP_SKIPPED, OP_WRITE, offset, size);
 513                 return;
 514         }
 515
 516         log4(OP_WRITE, offset, size, file_size);
 517
 518         gendata(original_buf, good_buf, offset, size);
 519         if (file_size < offset + size) {
 520                 if (file_size < offset)
 521                         memset(good_buf + file_size, '\0', offset - file_size);
 522                 file_size = offset + size;
 523                 if (lite) {
 524                         warn("Lite file size bug in fsx!");
 525                         report_failure(149);
 526                 }
 527         }
 528
 529         if (testcalls <= simulatedopcount)
 530                 return;
 531
 532         if (!quiet && ((progressinterval &&
 533                         testcalls % progressinterval == 0) ||
 534                        (debug &&
 535                         (monitorstart == -1 ||
 536                          (offset + size > monitorstart &&
 537                           (monitorend == -1 || offset <= monitorend))))))
 538                 prt("%lu write\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
 539                     offset, offset + size - 1, size);
 540         ret = yaffs_lseek(fd, (off_t)offset, SEEK_SET);
 541         if (ret == (off_t)-1) {
 542                 prterr("dowrite: lseek");
 543                 report_failure(150);
 544         }
 545         iret = yaffs_write(fd, good_buf + offset, size);
 546         if (iret != size) {
 547                 if (iret == -1)
 548                         prterr("dowrite: write");
 549                 else
 550                         prt("short write: 0x%x bytes instead of 0x%x\n",
 551                             iret, size);
 552                 report_failure(151);
 553         }
 554 }
 555
 556
 557
 558 void
 559 dotruncate(unsigned size)
 560 {
 561         int oldsize = file_size;
 562
 563         size -= size % truncbdy;
 564         if (size > biggest) {
 565                 biggest = size;
 566                 if (!quiet && testcalls > simulatedopcount)
 567                         prt("truncating to largest ever: 0x%x\n", size);
 568         }
 569
 570         log4(OP_TRUNCATE, size, (unsigned)file_size, 0);
 571
 572         if (size > file_size)
 573                 memset(good_buf + file_size, '\0', size - file_size);
 574         file_size = size;
 575
 576         if (testcalls <= simulatedopcount)
 577                 return;
 578
 579         if ((progressinterval && testcalls % progressinterval == 0) ||
 580             (debug && (monitorstart == -1 || monitorend == -1 ||
 581                        size <= monitorend)))
 582                 prt("%lu trunc\tfrom 0x%x to 0x%x\n", testcalls, oldsize, size);
 583         if (yaffs_ftruncate(fd, (off_t)size) == -1) {
 584                 prt("ftruncate1: %x\n", size);
 585                 prterr("dotruncate: ftruncate");
 586                 report_failure(160);
 587         }
 588 }
 589
 590
 591 void
 592 writefileimage()
 593 {
 594         ssize_t iret;
 595
 596         if (yaffs_lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) {
 597                 prterr("writefileimage: lseek");
 598                 report_failure(171);
 599         }
 600         iret = yaffs_write(fd, good_buf, file_size);
 601         if ((off_t)iret != file_size) {
 602                 if (iret == -1)
 603                         prterr("writefileimage: write");
 604                 else
 605                         prt("short write: 0x%x bytes instead of 0x%llx\n",
 606                             iret, (unsigned long long)file_size);
 607                 report_failure(172);
 608         }
 609         if (lite ? 0 : yaffs_ftruncate(fd, file_size) == -1) {
 610                 prt("ftruncate2: %llx\n", (unsigned long long)file_size);
 611                 prterr("writefileimage: ftruncate");
 612                 report_failure(173);
 613         }
 614 }
 615
 616
 617 void
 618 docloseopen(void)
 619 {
 620         if (testcalls <= simulatedopcount)
 621                 return;
 622
 623         if (debug)
 624                 prt("%lu close/open\n", testcalls);
 625         if (yaffs_close(fd)) {
 626                 prterr("docloseopen: close");
 627                 report_failure(180);
 628         }
 629         fd = yaffs_open(fname, O_RDWR, 0);
 630         if (fd < 0) {
 631                 prterr("docloseopen: open");
 632                 report_failure(181);
 633         }
 634 }
 635
 636
 637 void
 638 test(void)
 639 {
 640         unsigned long   offset;
 641         unsigned long   size = maxoplen;
 642         unsigned long   rv = random();
 643         unsigned long   op = rv % (3 + !lite + mapped_writes);
 644
 645         /* turn off the map read if necessary */
 646
 647         if (op == 2 && !mapped_reads)
 648             op = 0;
 649
 650         if (simulatedopcount > 0 && testcalls == simulatedopcount)
 651                 writefileimage();
 652
 653         testcalls++;
 654
 655         if (closeprob)
 656                 closeopen = (rv >> 3) < (1 << 28) / closeprob;
 657
 658         if (debugstart > 0 && testcalls >= debugstart)
 659                 debug = 1;
 660
 661         if (!quiet && testcalls < simulatedopcount && testcalls % 100000 == 0)
 662                 prt("%lu...\n", testcalls);
 663
 664         /*
 665          * READ:        op = 0
 666          * WRITE:       op = 1
 667          * MAPREAD:     op = 2
 668          * TRUNCATE:    op = 3
 669          * MAPWRITE:    op = 3 or 4
 670          */
 671         if (lite ? 0 : op == 3 && (style & 1) == 0) /* vanilla truncate? */
 672                 dotruncate(random() % maxfilelen);
 673         else {
 674                 if (randomoplen)
 675                         size = random() % (maxoplen+1);
 676                 if (lite ? 0 : op == 3)
 677                         dotruncate(size);
 678                 else {
 679                         offset = random();
 680                         if (op == 1 || op == (lite ? 3 : 4)) {
 681                                 offset %= maxfilelen;
 682                                 if (offset + size > maxfilelen)
 683                                         size = maxfilelen - offset;
 684                                 dowrite(offset, size);
 685                         } else {
 686                                 if (file_size)
 687                                         offset %= file_size;
 688                                 else
 689                                         offset = 0;
 690                                 if (offset + size > file_size)
 691                                         size = file_size - offset;
 692                                 doread(offset, size);
 693                         }
 694                 }
 695         }
 696         if (sizechecks && testcalls > simulatedopcount)
 697                 check_size();
 698         if (closeopen)
 699                 docloseopen();
 700 }
 701
 702
 703 void
 704 cleanup(sig)
 705         int     sig;
 706 {
 707         if (sig)
 708                 prt("signal %d\n", sig);
 709         prt("testcalls = %lu\n", testcalls);
 710         exit(sig);
 711 }
 712
 713
 714 void
 715 usage(void)
 716 {
 717         fprintf(stdout, "usage: %s",
 718                 "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\
 719         -b opnum: beginning operation number (default 1)\n\
 720         -c P: 1 in P chance of file close+open at each op (default infinity)\n\
 721         -d: debug output for all operations\n\
 722         -l flen: the upper bound on file size (default 262144)\n\
 723         -m startop:endop: monitor (print debug output) specified byte range (default 0:infinity)\n\
 724         -n: no verifications of file size\n\
 725         -o oplen: the upper bound on operation size (default 65536)\n\
 726         -p progressinterval: debug output at specified operation interval\n\
 727         -q: quieter operation\n\
 728         -r readbdy: 4096 would make reads page aligned (default 1)\n\
 729         -s style: 1 gives smaller truncates (default 0)\n\
 730         -t truncbdy: 4096 would make truncates page aligned (default 1)\n\
 731         -w writebdy: 4096 would make writes page aligned (default 1)\n\
 732         -D startingop: debug output starting at specified operation\n\
 733         -L: fsxLite - no file creations & no file size changes\n\
 734         -N numops: total # operations to do (default infinity)\n\
 735         -O: use oplen (see -o flag) for every op (default random)\n\
 736         -P dirpath: save .fsxlog and .fsxgood files in dirpath (default ./)\n\
 737         -S seed: for random # generator (default 1) 0 gets timestamp\n\
 738         fname: this filename is REQUIRED (no default)\n");
 739         exit(90);
 740 }
 741
 742
 743 int
 744 getnum(char *s, char **e)
 745 {
 746         int ret = -1;
 747
 748         *e = (char *) 0;
 749         ret = strtol(s, e, 0);
 750         if (*e)
 751                 switch (**e) {
 752                 case 'b':
 753                 case 'B':
 754                         ret *= 512;
 755                         *e = *e + 1;
 756                         break;
 757                 case 'k':
 758                 case 'K':
 759                         ret *= 1024;
 760                         *e = *e + 1;
 761                         break;
 762                 case 'm':
 763                 case 'M':
 764                         ret *= 1024*1024;
 765                         *e = *e + 1;
 766                         break;
 767                 case 'w':
 768                 case 'W':
 769                         ret *= 4;
 770                         *e = *e + 1;
 771                         break;
 772                 }
 773         return (ret);
 774 }
 775
 776
 777 #define BASE_NAME "/flash/yaffs1"
 778
 779 int
 780 main(int argc, char **argv)
 781 {
 782         int     i, style, ch;
 783         char    *endp;
 784         char goodfile[1024];
 785         char logfile[1024];
 786
 787         goodfile[0] = 0;
 788         logfile[0] = 0;
 789
 790         page_size = getpagesize();
 791         page_mask = page_size - 1;
 792
 793         setvbuf(stdout, (char *)0, _IOLBF, 0); /* line buffered stdout */
 794
 795         while ((ch = getopt(argc, argv, "b:c:dl:m:no:p:qr:s:t:w:D:LN:OP:RS:W"))
 796                != EOF)
 797                 switch (ch) {
 798                 case 'b':
 799                         simulatedopcount = getnum(optarg, &endp);
 800                         if (!quiet)
 801                                 fprintf(stdout, "Will begin at operation %ld\n",
 802                                         simulatedopcount);
 803                         if (simulatedopcount == 0)
 804                                 usage();
 805                         simulatedopcount -= 1;
 806                         break;
 807                 case 'c':
 808                         closeprob = getnum(optarg, &endp);
 809                         if (!quiet)
 810                                 fprintf(stdout,
 811                                         "Chance of close/open is 1 in %d\n",
 812                                         closeprob);
 813                         if (closeprob <= 0)
 814                                 usage();
 815                         break;
 816                 case 'd':
 817                         debug = 1;
 818                         break;
 819                 case 'l':
 820                         maxfilelen = getnum(optarg, &endp);
 821                         if (maxfilelen <= 0)
 822                                 usage();
 823                         break;
 824                 case 'm':
 825                         monitorstart = getnum(optarg, &endp);
 826                         if (monitorstart < 0)
 827                                 usage();
 828                         if (!endp || *endp++ != ':')
 829                                 usage();
 830                         monitorend = getnum(endp, &endp);
 831                         if (monitorend < 0)
 832                                 usage();
 833                         if (monitorend == 0)
 834                                 monitorend = -1; /* aka infinity */
 835                         debug = 1;
 836                 case 'n':
 837                         sizechecks = 0;
 838                         break;
 839                 case 'o':
 840                         maxoplen = getnum(optarg, &endp);
 841                         if (maxoplen <= 0)
 842                                 usage();
 843                         break;
 844                 case 'p':
 845                         progressinterval = getnum(optarg, &endp);
 846                         if (progressinterval < 0)
 847                                 usage();
 848                         break;
 849                 case 'q':
 850                         quiet = 1;
 851                         break;
 852                 case 'r':
 853                         readbdy = getnum(optarg, &endp);
 854                         if (readbdy <= 0)
 855                                 usage();
 856                         break;
 857                 case 's':
 858                         style = getnum(optarg, &endp);
 859                         if (style < 0 || style > 1)
 860                                 usage();
 861                         break;
 862                 case 't':
 863                         truncbdy = getnum(optarg, &endp);
 864                         if (truncbdy <= 0)
 865                                 usage();
 866                         break;
 867                 case 'w':
 868                         writebdy = getnum(optarg, &endp);
 869                         if (writebdy <= 0)
 870                                 usage();
 871                         break;
 872                 case 'D':
 873                         debugstart = getnum(optarg, &endp);
 874                         if (debugstart < 1)
 875                                 usage();
 876                         break;
 877                 case 'L':
 878                         lite = 1;
 879                         break;
 880                 case 'N':
 881                         numops = getnum(optarg, &endp);
 882                         if (numops < 0)
 883                                 usage();
 884                         break;
 885                 case 'O':
 886                         randomoplen = 0;
 887                         break;
 888                 case 'P':
 889                         strncpy(goodfile, optarg, sizeof(goodfile));
 890                         strcat(goodfile, "/");
 891                         strncpy(logfile, optarg, sizeof(logfile));
 892                         strcat(logfile, "/");
 893                         break;
 894                 case 'R':
 895                         mapped_reads = 0;
 896                         break;
 897                 case 'S':
 898                         seed = getnum(optarg, &endp);
 899                         if (seed == 0)
 900                                 seed = time(0) % 10000;
 901                         if (!quiet)
 902                                 fprintf(stdout, "Seed set to %d\n", seed);
 903                         if (seed < 0)
 904                                 usage();
 905                         break;
 906                 case 'W':
 907                         mapped_writes = 0;
 908                         if (!quiet)
 909                                 fprintf(stdout, "mapped writes DISABLED\n");
 910                         break;
 911
 912                 default:
 913                         usage();
 914                         /* NOTREACHED */
 915                 }
 916         argc -= optind;
 917         argv += optind;
 918
 919         yaffs_StartUp();
 920         yaffs_mount(BASE_NAME);
 921
 922         fname = BASE_NAME "/fsxdata";
 923
 924         signal(SIGHUP,  cleanup);
 925         signal(SIGINT,  cleanup);
 926         signal(SIGPIPE, cleanup);
 927         signal(SIGALRM, cleanup);
 928         signal(SIGTERM, cleanup);
 929         signal(SIGXCPU, cleanup);
 930         signal(SIGXFSZ, cleanup);
 931         signal(SIGVTALRM,       cleanup);
 932         signal(SIGUSR1, cleanup);
 933         signal(SIGUSR2, cleanup);
 934
 935         initstate(seed, state, 256);
 936         setstate(state);
 937         fd = yaffs_open(fname, O_RDWR|(lite ? 0 : O_CREAT|O_TRUNC), 0666);
 938         if (fd < 0) {
 939                 prterr(fname);
 940                 exit(91);
 941         }
 942         strncat(goodfile, fname, 256);
 943         strcat (goodfile, ".fsxgood");
 944         fsxgoodfd = yaffs_open(goodfile, O_RDWR|O_CREAT|O_TRUNC, 0666);
 945         if (fsxgoodfd < 0) {
 946                 prterr(goodfile);
 947                 exit(92);
 948         }
 949         strncat(logfile, "fsx", 256);
 950         strcat (logfile, ".fsxlog");
 951         fsxlogf = fopen(logfile, "w");
 952         if (fsxlogf == NULL) {
 953                 prterr(logfile);
 954                 exit(93);
 955         }
 956         if (lite) {
 957                 off_t ret;
 958                 file_size = maxfilelen = yaffs_lseek(fd, (off_t)0, SEEK_END);
 959                 if (file_size == (off_t)-1) {
 960                         prterr(fname);
 961                         warn("main: lseek eof");
 962                         exit(94);
 963                 }
 964                 ret = yaffs_lseek(fd, (off_t)0, SEEK_SET);
 965                 if (ret == (off_t)-1) {
 966                         prterr(fname);
 967                         warn("main: lseek 0");
 968                         exit(95);
 969                 }
 970         }
 971         original_buf = (char *) malloc(maxfilelen);
 972         for (i = 0; i < maxfilelen; i++)
 973                 original_buf[i] = random() % 256;
 974         good_buf = (char *) malloc(maxfilelen);
 975         memset(good_buf, '\0', maxfilelen);
 976         temp_buf = (char *) malloc(maxoplen);
 977         memset(temp_buf, '\0', maxoplen);
 978         if (lite) {     /* zero entire existing file */
 979                 ssize_t written;
 980
 981                 written = yaffs_write(fd, good_buf, (size_t)maxfilelen);
 982                 if (written != maxfilelen) {
 983                         if (written == -1) {
 984                                 prterr(fname);
 985                                 warn("main: error on write");
 986                         } else
 987                                 warn("main: short write, 0x%x bytes instead of 0x%x\n",
 988                                      (unsigned)written, maxfilelen);
 989                         exit(98);
 990                 }
 991         } else
 992                 check_trunc_hack();
 993
 994         while (numops == -1 || numops--)
 995                 test();
 996
 997         if (yaffs_close(fd)) {
 998                 prterr("close");
 999                 report_failure(99);
1000         }
1001
1002         yaffs_close(fsxgoodfd);
1003
1004         yaffs_unmount(BASE_NAME);
1005         prt("All operations completed A-OK!\n");
1006
1007         exit(0);
1008         return 0;
1009 }
1010