rtems/rtems-y-test/fsx/rtems-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
  50 #include <sys/types.h>
  51 #include <sys/stat.h>
  52 #ifdef _UWIN
  53 # include <sys/param.h>
  54 # include <limits.h>
  55 # include <time.h>
  56 # include <strings.h>
  57 #endif
  58 #include <fcntl.h>
  59 #include <sys/mman.h>
  60 #ifndef MAP_FILE
  61 # define MAP_FILE 0
  62 #endif
  63 #include <limits.h>
  64 #include <signal.h>
  65 #include <stdio.h>
  66 #include <stdlib.h>
  67 #include <string.h>
  68 #include <unistd.h>
  69 #include <stdarg.h>
  70 #include <errno.h>
  71 #include <time.h>
  72
  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
 110 char    fname[200];                             /* name of our test file */
 111 char    mount_name[200];
 112
 113 int     fd;                             /* fd for our test file */
 114
 115 off_t           file_size = 0;
 116 off_t           biggest = 0;
 117 char            state[256];
 118 unsigned long   testcalls = 0;          /* calls to function "test" */
 119
 120 unsigned long   simulatedopcount = 0;   /* -b flag */
 121 unsigned        closeprob = 0;          /* -c flag */
 122 int     debug = 0;                      /* -d flag */
 123 unsigned long   debugstart = 0;         /* -D flag */
 124 unsigned long   maxfilelen = 256 * 1024;        /* -l flag */
 125 int     sizechecks = 1;                 /* -n flag disables them */
 126 int     maxoplen = 64 * 1024;           /* -o flag */
 127 int     quiet = 0;                      /* -q flag */
 128 unsigned long progressinterval = 0;     /* -p flag */
 129 int     readbdy = 1;                    /* -r flag */
 130 int     style = 0;                      /* -s flag */
 131 int     truncbdy = 1;                   /* -t flag */
 132 int     writebdy = 1;                   /* -w flag */
 133 long    monitorstart = -1;              /* -m flag */
 134 long    monitorend = -1;                /* -m flag */
 135 int     lite = 0;                       /* -L flag */
 136 int     randomoplen = 1;                /* -O flag disables it */
 137 int     seed = 1;                       /* -S flag */
 138
 139 int     mapped_writes = 0;            /* yaffs direct does not support mmapped files */
 140 int     mapped_reads = 0;
 141
 142 int     fsxgoodfd = 0;
 143 FILE *  fsxlogf = NULL;
 144 int badoff = -1;
 145 int closeopen = 0;
 146
 147
 148
 149 void EXIT(int x)
 150 {
 151         printf("fsx wanted to exit with %d\n",x);
 152         while(x){}
 153 }
 154
 155 char goodfile[1024];
 156 char logfile[1024];
 157
 158
 159 void
 160 vwarnc(code, fmt, ap)
 161         int code;
 162         const char *fmt;
 163         va_list ap;
 164 {
 165         fprintf(stderr, "fsx: ");
 166         if (fmt != NULL) {
 167                 vfprintf(stderr, fmt, ap);
 168                 fprintf(stderr, ": ");
 169         }
 170         fprintf(stderr, "%s\n", strerror(code));
 171 }
 172
 173
 174 void
 175 warn(const char * fmt, ...)
 176 {
 177         va_list ap;
 178         va_start(ap, fmt);
 179         vwarnc(errno, fmt, ap);
 180         va_end(ap);
 181 }
 182
 183
 184 void
 185 prt(char *fmt, ...)
 186 {
 187         va_list args;
 188
 189         va_start(args, fmt);
 190         vfprintf(stdout, fmt, args);
 191         if (fsxlogf)
 192                 vfprintf(fsxlogf, fmt, args);
 193         va_end(args);
 194 }
 195
 196 void
 197 prterr(char *prefix)
 198 {
 199         prt("%s%s%s\n", prefix, prefix ? ": " : "", strerror(errno));
 200 }
 201
 202
 203 void
 204 log4(int operation, int arg0, int arg1, int arg2)
 205 {
 206         struct log_entry *le;
 207
 208         le = &oplog[logptr];
 209         le->operation = operation;
 210         if (closeopen)
 211                 le->operation = ~ le->operation;
 212         le->args[0] = arg0;
 213         le->args[1] = arg1;
 214         le->args[2] = arg2;
 215         logptr++;
 216         logcount++;
 217         if (logptr >= LOGSIZE)
 218                 logptr = 0;
 219 }
 220
 221
 222 void
 223 logdump(void)
 224 {
 225         int     i, count, down;
 226         struct log_entry        *lp;
 227
 228         prt("LOG DUMP (%d total operations):\n", logcount);
 229         if (logcount < LOGSIZE) {
 230                 i = 0;
 231                 count = logcount;
 232         } else {
 233                 i = logptr;
 234                 count = LOGSIZE;
 235         }
 236         for ( ; count > 0; count--) {
 237                 int opnum;
 238
 239                 opnum = i+1 + (logcount/LOGSIZE)*LOGSIZE;
 240                 prt("%d(%d mod 256): ", opnum, opnum%256);
 241                 lp = &oplog[i];
 242                 if ((closeopen = lp->operation < 0))
 243                         lp->operation = ~ lp->operation;
 244
 245                 switch (lp->operation) {
 246                 case OP_MAPREAD:
 247                         prt("MAPREAD\t0x%x thru 0x%x\t(0x%x bytes)",
 248                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 249                             lp->args[1]);
 250                         if (badoff >= lp->args[0] && badoff <
 251                                                      lp->args[0] + lp->args[1])
 252                                 prt("\t***RRRR***");
 253                         break;
 254                 case OP_MAPWRITE:
 255                         prt("MAPWRITE 0x%x thru 0x%x\t(0x%x bytes)",
 256                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 257                             lp->args[1]);
 258                         if (badoff >= lp->args[0] && badoff <
 259                                                      lp->args[0] + lp->args[1])
 260                                 prt("\t******WWWW");
 261                         break;
 262                 case OP_READ:
 263                         prt("READ\t0x%x thru 0x%x\t(0x%x bytes)",
 264                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 265                             lp->args[1]);
 266                         if (badoff >= lp->args[0] &&
 267                             badoff < lp->args[0] + lp->args[1])
 268                                 prt("\t***RRRR***");
 269                         break;
 270                 case OP_WRITE:
 271                         prt("WRITE\t0x%x thru 0x%x\t(0x%x bytes)",
 272                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 273                             lp->args[1]);
 274                         if (lp->args[0] > lp->args[2])
 275                                 prt(" HOLE");
 276                         else if (lp->args[0] + lp->args[1] > lp->args[2])
 277                                 prt(" EXTEND");
 278                         if ((badoff >= lp->args[0] || badoff >=lp->args[2]) &&
 279                             badoff < lp->args[0] + lp->args[1])
 280                                 prt("\t***WWWW");
 281                         break;
 282                 case OP_TRUNCATE:
 283                         down = lp->args[0] < lp->args[1];
 284                         prt("TRUNCATE %s\tfrom 0x%x to 0x%x",
 285                             down ? "DOWN" : "UP", lp->args[1], lp->args[0]);
 286                         if (badoff >= lp->args[!down] &&
 287                             badoff < lp->args[!!down])
 288                                 prt("\t******WWWW");
 289                         break;
 290                 case OP_SKIPPED:
 291                         prt("SKIPPED (no operation)");
 292                         break;
 293                 default:
 294                         prt("BOGUS LOG ENTRY (operation code = %d)!",
 295                             lp->operation);
 296                 }
 297                 if (closeopen)
 298                         prt("\n\t\tCLOSE/OPEN");
 299                 prt("\n");
 300                 i++;
 301                 if (i == LOGSIZE)
 302                         i = 0;
 303         }
 304 }
 305
 306
 307 void
 308 save_buffer(char *buffer, off_t bufferlength, int fd)
 309 {
 310         off_t ret;
 311         ssize_t byteswritten;
 312
 313         if (fd <= 0 || bufferlength == 0)
 314                 return;
 315
 316         if (bufferlength > SSIZE_MAX) {
 317                 prt("fsx flaw: overflow in save_buffer\n");
 318                 EXIT(67);
 319         }
 320         if (lite) {
 321                 off_t size_by_seek = lseek(fd, (off_t)0, SEEK_END);
 322                 if (size_by_seek == (off_t)-1)
 323                         prterr("save_buffer: lseek eof");
 324                 else if (bufferlength > size_by_seek) {
 325                         warn("save_buffer: .fsxgood file too short... will save 0x%llx bytes instead of 0x%llx\n", (unsigned long long)size_by_seek,
 326                              (unsigned long long)bufferlength);
 327                         bufferlength = size_by_seek;
 328                 }
 329         }
 330
 331         ret = lseek(fd, (off_t)0, SEEK_SET);
 332         if (ret == (off_t)-1)
 333                 prterr("save_buffer: lseek 0");
 334
 335         byteswritten = write(fd, buffer, (size_t)bufferlength);
 336         if (byteswritten != bufferlength) {
 337                 if (byteswritten == -1)
 338                         prterr("save_buffer write");
 339                 else
 340                         warn("save_buffer: short write, 0x%x bytes instead of 0x%llx\n",
 341                              (unsigned)byteswritten,
 342                              (unsigned long long)bufferlength);
 343         }
 344 }
 345
 346
 347 void
 348 report_failure(int status)
 349 {
 350         logdump();
 351
 352         if (fsxgoodfd) {
 353                 if (good_buf) {
 354                         save_buffer(good_buf, file_size, fsxgoodfd);
 355                         prt("Correct content saved for comparison\n");
 356                         prt("(maybe hexdump \"%s\" vs \"%s.fsxgood\")\n",
 357                             fname, fname);
 358                 }
 359                 close(fsxgoodfd);
 360         }
 361         prt("Exiting with %d\n",status);
 362         EXIT(status);
 363 }
 364
 365
 366 #define short_at(cp) ((unsigned short)((*((unsigned char *)(cp)) << 8) | \
 367                                         *(((unsigned char *)(cp)) + 1)))
 368
 369 void
 370 check_buffers(unsigned offset, unsigned size)
 371 {
 372         unsigned char c, t;
 373         unsigned i = 0;
 374         unsigned n = 0;
 375         unsigned op = 0;
 376         unsigned bad = 0;
 377
 378         if (memcmp(good_buf + offset, temp_buf, size) != 0) {
 379                 prt("READ BAD DATA: offset = 0x%x, size = 0x%x\n",
 380                     offset, size);
 381                 prt("OFFSET\tGOOD\tBAD\tRANGE\n");
 382                 while (size > 0) {
 383                         c = good_buf[offset];
 384                         t = temp_buf[i];
 385                         if (c != t) {
 386                                 if (n == 0) {
 387                                         bad = short_at(&temp_buf[i]);
 388                                         prt("0x%5x\t0x%04x\t0x%04x", offset,
 389                                             short_at(&good_buf[offset]), bad);
 390                                         op = temp_buf[offset & 1 ? i+1 : i];
 391                                 }
 392                                 n++;
 393                                 badoff = offset;
 394                         }
 395                         offset++;
 396                         i++;
 397                         size--;
 398                 }
 399                 if (n) {
 400                         prt("\t0x%5x\n", n);
 401                         if (bad)
 402                                 prt("operation# (mod 256) for the bad data may be %u\n", ((unsigned)op & 0xff));
 403                         else
 404                                 prt("operation# (mod 256) for the bad data unknown, check HOLE and EXTEND ops\n");
 405                 } else
 406                         prt("????????????????\n");
 407                 report_failure(110);
 408         }
 409 }
 410
 411
 412 void
 413 check_size(void)
 414 {
 415         struct stat     statbuf;
 416         off_t   size_by_seek;
 417
 418         if (fstat(fd, &statbuf)) {
 419                 prterr("check_size: fstat");
 420                 statbuf.st_size = -1;
 421         }
 422         size_by_seek = lseek(fd, (off_t)0, SEEK_END);
 423         if (file_size != statbuf.st_size ||
 424            file_size != size_by_seek) {
 425                 prt("Size error: expected 0x%llx stat 0x%llx seek 0x%llx\n",
 426                     (unsigned long long)file_size,
 427                     (unsigned long long)statbuf.st_size,
 428                     (unsigned long long)size_by_seek);
 429                 report_failure(120);
 430         }
 431 }
 432
 433
 434 void
 435 check_trunc_hack(void)
 436 {
 437         struct stat statbuf;
 438
 439         ftruncate(fd, (off_t)0);
 440         ftruncate(fd, (off_t)100000);
 441         fstat(fd, &statbuf);
 442         if (statbuf.st_size != (off_t)100000) {
 443                 prt("no extend on truncate! not posix!\n");
 444                 EXIT(130);
 445         }
 446         ftruncate(fd, (off_t)0);
 447 }
 448
 449
 450 void
 451 doread(unsigned offset, unsigned size)
 452 {
 453         off_t ret;
 454         unsigned iret;
 455
 456         offset -= offset % readbdy;
 457         if (size == 0) {
 458                 if (!quiet && testcalls > simulatedopcount)
 459                         prt("skipping zero size read\n");
 460                 log4(OP_SKIPPED, OP_READ, offset, size);
 461                 return;
 462         }
 463         if ((off_t)(size + offset) > file_size) {
 464                 if (!quiet && testcalls > simulatedopcount)
 465                         prt("skipping seek/read past end of file\n");
 466                 log4(OP_SKIPPED, OP_READ, offset, size);
 467                 return;
 468         }
 469
 470         log4(OP_READ, offset, size, 0);
 471
 472         if (testcalls <= simulatedopcount)
 473                 return;
 474
 475         if (!quiet && ((progressinterval &&
 476                         testcalls % progressinterval == 0) ||
 477                        (debug &&
 478                         (monitorstart == -1 ||
 479                          (offset + size > monitorstart &&
 480                           (monitorend == -1 || offset <= monitorend))))))
 481                 prt("%lu read\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
 482                     offset, offset + size - 1, size);
 483         ret = lseek(fd, (off_t)offset, SEEK_SET);
 484         if (ret == (off_t)-1) {
 485                 prterr("doread: lseek");
 486                 report_failure(140);
 487         }
 488         iret = read(fd, temp_buf, size);
 489         if (iret != size) {
 490                 if (iret == (unsigned)(-1))
 491                         prterr("doread: read");
 492                 else
 493                         prt("short read: 0x%x bytes instead of 0x%x\n",
 494                             iret, size);
 495                 report_failure(141);
 496         }
 497         check_buffers(offset, size);
 498 }
 499
 500
 501
 502
 503
 504 void
 505 gendata(char *original_buf, char *good_buf, unsigned offset, unsigned size)
 506 {
 507         while (size--) {
 508                 good_buf[offset] = testcalls % 256;
 509                 if (offset % 2)
 510                         good_buf[offset] += original_buf[offset];
 511                 offset++;
 512         }
 513 }
 514
 515
 516 void
 517 dowrite(unsigned offset, unsigned size)
 518 {
 519         off_t ret;
 520         unsigned iret;
 521
 522         offset -= offset % writebdy;
 523         if (size == 0) {
 524                 if (!quiet && testcalls > simulatedopcount)
 525                         prt("skipping zero size write\n");
 526                 log4(OP_SKIPPED, OP_WRITE, offset, size);
 527                 return;
 528         }
 529
 530         log4(OP_WRITE, offset, size, file_size);
 531
 532         gendata(original_buf, good_buf, offset, size);
 533         if (file_size < offset + size) {
 534                 if (file_size < offset)
 535                         memset(good_buf + file_size, '\0', offset - file_size);
 536                 file_size = offset + size;
 537                 if (lite) {
 538                         warn("Lite file size bug in fsx!");
 539                         report_failure(149);
 540                 }
 541         }
 542
 543         if (testcalls <= simulatedopcount)
 544                 return;
 545
 546         if (!quiet && ((progressinterval &&
 547                         testcalls % progressinterval == 0) ||
 548                        (debug &&
 549                         (monitorstart == -1 ||
 550                          (offset + size > monitorstart &&
 551                           (monitorend == -1 || offset <= monitorend))))))
 552                 prt("%lu write\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
 553                     offset, offset + size - 1, size);
 554         ret = lseek(fd, (off_t)offset, SEEK_SET);
 555         if (ret == (off_t)-1) {
 556                 prterr("dowrite: lseek");
 557                 report_failure(150);
 558         }
 559         iret = write(fd, good_buf + offset, size);
 560         if (iret != size) {
 561                 if (iret == (unsigned)(-1))
 562                         prterr("dowrite: write");
 563                 else
 564                         prt("short write: 0x%x bytes instead of 0x%x\n",
 565                             iret, size);
 566                 report_failure(151);
 567         }
 568 }
 569
 570
 571
 572 void
 573 dotruncate(unsigned size)
 574 {
 575         int oldsize = file_size;
 576
 577         size -= size % truncbdy;
 578         if (size > biggest) {
 579                 biggest = size;
 580                 if (!quiet && testcalls > simulatedopcount)
 581                         prt("truncating to largest ever: 0x%x\n", size);
 582         }
 583
 584         log4(OP_TRUNCATE, size, (unsigned)file_size, 0);
 585
 586         if (size > file_size)
 587                 memset(good_buf + file_size, '\0', size - file_size);
 588         file_size = size;
 589
 590         if (testcalls <= simulatedopcount)
 591                 return;
 592
 593         if ((progressinterval && testcalls % progressinterval == 0) ||
 594             (debug && (monitorstart == -1 || monitorend == -1 ||
 595                        size <= monitorend)))
 596                 prt("%lu trunc\tfrom 0x%x to 0x%x\n", testcalls, oldsize, size);
 597         if (ftruncate(fd, (off_t)size) == -1) {
 598                 prt("ftruncate1: %x\n", size);
 599                 prterr("dotruncate: ftruncate");
 600                 report_failure(160);
 601         }
 602 }
 603
 604
 605 void
 606 writefileimage()
 607 {
 608         ssize_t iret;
 609
 610         if (lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) {
 611                 prterr("writefileimage: lseek");
 612                 report_failure(171);
 613         }
 614         iret = write(fd, good_buf, file_size);
 615         if ((off_t)iret != file_size) {
 616                 if (iret == -1)
 617                         prterr("writefileimage: write");
 618                 else
 619                         prt("short write: 0x%x bytes instead of 0x%llx\n",
 620                             iret, (unsigned long long)file_size);
 621                 report_failure(172);
 622         }
 623         if (lite ? 0 : ftruncate(fd, file_size) == -1) {
 624                 prt("ftruncate2: %llx\n", (unsigned long long)file_size);
 625                 prterr("writefileimage: ftruncate");
 626                 report_failure(173);
 627         }
 628 }
 629
 630
 631 void
 632 docloseopen(void)
 633 {
 634         if (testcalls <= simulatedopcount)
 635                 return;
 636
 637         if (debug)
 638                 prt("%lu close/open\n", testcalls);
 639         if (close(fd)) {
 640                 prterr("docloseopen: close");
 641                 report_failure(180);
 642         }
 643         fd = open(fname, O_RDWR, 0);
 644         if (fd < 0) {
 645                 prterr("docloseopen: open");
 646                 report_failure(181);
 647         }
 648 }
 649
 650
 651 void
 652 fsx_do_op(void)
 653 {
 654         unsigned long   offset;
 655         unsigned long   size = maxoplen;
 656         unsigned long   rv = random();
 657         unsigned long   op = rv % (3 + !lite + mapped_writes);
 658
 659         /* turn off the map read if necessary */
 660
 661         if (op == 2 && !mapped_reads)
 662             op = 0;
 663
 664         if (simulatedopcount > 0 && testcalls == simulatedopcount)
 665                 writefileimage();
 666
 667         testcalls++;
 668
 669         if (closeprob)
 670                 closeopen = (rv >> 3) < (1U << 28) / closeprob;
 671
 672         if (debugstart > 0 && testcalls >= debugstart)
 673                 debug = 1;
 674
 675         if (!quiet && testcalls < simulatedopcount && testcalls % 100000 == 0)
 676                 prt("%lu...\n", testcalls);
 677
 678         /*
 679          * READ:        op = 0
 680          * WRITE:       op = 1
 681          * MAPREAD:     op = 2
 682          * TRUNCATE:    op = 3
 683          * MAPWRITE:    op = 3 or 4
 684          */
 685         if (lite ? 0 : op == 3 && (style & 1) == 0) /* vanilla truncate? */
 686                 dotruncate(random() % maxfilelen);
 687         else {
 688                 if (randomoplen)
 689                         size = random() % (maxoplen+1);
 690                 if (lite ? 0 : op == 3)
 691                         dotruncate(size);
 692                 else {
 693                         offset = random();
 694                         if (op == 1 || op == (lite ? 3 : 4)) {
 695                                 offset %= maxfilelen;
 696                                 if (offset + size > maxfilelen)
 697                                         size = maxfilelen - offset;
 698                                 dowrite(offset, size);
 699                         } else {
 700                                 if (file_size)
 701                                         offset %= file_size;
 702                                 else
 703                                         offset = 0;
 704                                 if ((ssize_t)(offset + size) > file_size)
 705                                         size = file_size - offset;
 706                                 doread(offset, size);
 707                         }
 708                 }
 709         }
 710         if (sizechecks && testcalls > simulatedopcount)
 711                 check_size();
 712         if (closeopen)
 713                 docloseopen();
 714 }
 715
 716
 717 void
 718 cleanup(sig)
 719         int     sig;
 720 {
 721         if (sig)
 722                 prt("signal %d\n", sig);
 723         prt("testcalls = %lu\n", testcalls);
 724         EXIT(sig);
 725 }
 726
 727
 728 void
 729 usage(void)
 730 {
 731         fprintf(stdout, "usage: %s",
 732                 "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\
 733         -b opnum: beginning operation number (default 1)\n\
 734         -c P: 1 in P chance of file close+open at each op (default infinity)\n\
 735         -d: debug output for all operations\n\
 736         -l flen: the upper bound on file size (default 262144)\n\
 737         -m startop:endop: monitor (print debug output) specified byte range (default 0:infinity)\n\
 738         -n: no verifications of file size\n\
 739         -o oplen: the upper bound on operation size (default 65536)\n\
 740         -p progressinterval: debug output at specified operation interval\n\
 741         -q: quieter operation\n\
 742         -r readbdy: 4096 would make reads page aligned (default 1)\n\
 743         -s style: 1 gives smaller truncates (default 0)\n\
 744         -t truncbdy: 4096 would make truncates page aligned (default 1)\n\
 745         -w writebdy: 4096 would make writes page aligned (default 1)\n\
 746         -D startingop: debug output starting at specified operation\n\
 747         -L: fsxLite - no file creations & no file size changes\n\
 748         -N numops: total # operations to do (default infinity)\n\
 749         -O: use oplen (see -o flag) for every op (default random)\n\
 750         -P dirpath: save .fsxlog and .fsxgood files in dirpath (default ./)\n\
 751         -S seed: for random # generator (default 1) 0 gets timestamp\n\
 752         fname: this filename is REQUIRED (no default)\n");
 753         EXIT(90);
 754 }
 755
 756
 757 int
 758 getnum(char *s, char **e)
 759 {
 760         int ret = -1;
 761
 762         *e = (char *) 0;
 763         ret = strtol(s, e, 0);
 764         if (*e)
 765                 switch (**e) {
 766                 case 'b':
 767                 case 'B':
 768                         ret *= 512;
 769                         *e = *e + 1;
 770                         break;
 771                 case 'k':
 772                 case 'K':
 773                         ret *= 1024;
 774                         *e = *e + 1;
 775                         break;
 776                 case 'm':
 777                 case 'M':
 778                         ret *= 1024*1024;
 779                         *e = *e + 1;
 780                         break;
 781                 case 'w':
 782                 case 'W':
 783                         ret *= 4;
 784                         *e = *e + 1;
 785                         break;
 786                 }
 787         return (ret);
 788 }
 789
 790
 791
 792 extern int random_seed;
 793 extern int simulate_power_failure;
 794
 795
 796 int mounted_by_fsx = 0;
 797
 798
 799
 800 int
 801 fsx_init(const char *mount_pt)
 802 {
 803         unsigned        i;
 804
 805         goodfile[0] = 0;
 806         logfile[0] = 0;
 807
 808         page_size = getpagesize();
 809         page_mask = page_size - 1;
 810
 811         setvbuf(stdout, (char *)0, _IOLBF, 0); /* line buffered stdout */
 812
 813         strcpy(mount_name,mount_pt);
 814         strcpy(fname,mount_name);
 815         strcat(fname,"/fsxdata");
 816
 817 #if 0
 818         signal(SIGHUP,  cleanup);
 819         signal(SIGINT,  cleanup);
 820         signal(SIGPIPE, cleanup);
 821         signal(SIGALRM, cleanup);
 822         signal(SIGTERM, cleanup);
 823         signal(SIGXCPU, cleanup);
 824         signal(SIGXFSZ, cleanup);
 825         signal(SIGVTALRM, cleanup);
 826         signal(SIGUSR1, cleanup);
 827         signal(SIGUSR2, cleanup);
 828 #endif
 829
 830 #if 0
 831         initstate(seed, state, 256);
 832         setstate(state);
 833 #endif
 834
 835         fd = open(fname, O_RDWR|(lite ? 0 : O_CREAT|O_TRUNC), 0666);
 836         if (fd < 0) {
 837                 prterr(fname);
 838                 EXIT(91);
 839         }
 840         strncat(goodfile, fname, 256);
 841         strcat (goodfile, ".fsxgood");
 842         fsxgoodfd = open(goodfile, O_RDWR|O_CREAT|O_TRUNC, 0666);
 843         if (fsxgoodfd < 0) {
 844                 prterr(goodfile);
 845                 EXIT(92);
 846         }
 847         strncat(logfile, "fsx", 256);
 848         strcat (logfile, ".fsxlog");
 849         fsxlogf = fopen(logfile, "w");
 850         if (fsxlogf == NULL) {
 851                 prterr(logfile);
 852                 EXIT(93);
 853         }
 854         if (lite) {
 855                 off_t ret;
 856                 file_size = maxfilelen = lseek(fd, (off_t)0, SEEK_END);
 857                 if (file_size == (off_t)-1) {
 858                         prterr(fname);
 859                         warn("main: lseek eof");
 860                         EXIT(94);
 861                 }
 862                 ret = lseek(fd, (off_t)0, SEEK_SET);
 863                 if (ret == (off_t)-1) {
 864                         prterr(fname);
 865                         warn("main: lseek 0");
 866                         EXIT(95);
 867                 }
 868         }
 869         original_buf = (char *) malloc(maxfilelen);
 870         for (i = 0; i < maxfilelen; i++)
 871                 original_buf[i] = random() % 256;
 872         good_buf = (char *) malloc(maxfilelen);
 873         memset(good_buf, '\0', maxfilelen);
 874         temp_buf = (char *) malloc(maxoplen);
 875         memset(temp_buf, '\0', maxoplen);
 876         if (lite) {     /* zero entire existing file */
 877                 ssize_t written;
 878
 879                 written = write(fd, good_buf, (size_t)maxfilelen);
 880                 if (written != (ssize_t)maxfilelen) {
 881                         if (written == -1) {
 882                                 prterr(fname);
 883                                 warn("main: error on write");
 884                         } else
 885                                 warn("main: short write, 0x%x bytes instead of 0x%x\n",
 886                                      (unsigned)written, maxfilelen);
 887                         EXIT(98);
 888                 }
 889         } else
 890                 check_trunc_hack();
 891
 892         printf("fsx_init done\n");
 893
 894         return 0;
 895 }
 896
 897
 898 int fsx_complete(void)
 899 {
 900         if (close(fd)) {
 901                 prterr("close");
 902                 report_failure(99);
 903         }
 904
 905         close(fsxgoodfd);
 906
 907         prt("All operations completed A-OK!\n");
 908
 909         EXIT(0);
 910         return 0;
 911 }
 912
 913 int fsx_main(const char *mount_pt, int numops)
 914 {
 915         fsx_init(mount_pt);
 916         while (numops == -1 || numops--)
 917                 fsx_do_op();
 918         fsx_complete();
 919
 920         return 0;
 921 }
 922
 923
 924 #define YPATH "/yaffs_mount_pt"
 925
 926 #define FSX_TEST_DIR YPATH"/fsx_mount"
 927
 928 int run_the_test(void)
 929 {
 930         int ret;
 931         ret = mkdir(FSX_TEST_DIR, 0777);
 932         printf("mkdir returned %d\n", ret);
 933
 934         if (ret < 0)
 935                 perror("mkdir");
 936
 937         return fsx_main(FSX_TEST_DIR, 10000);
 938 }