direct/tests/nor_stress.c

   1 #include "nor_stress.h"
   2
   3
   4 #include "yaffsfs.h"
   5 #include "yaffs_fsx.h"
   6
   7 #include <stdio.h>
   8
   9
  10
  11 #if 1
  12 #define FSX_INIT(mount_pt) do{ if(interleave_fsx) yaffs_fsx_init(mount_pt); } while(0)
  13 #define FSX_COMPLETE() do { if(interleave_fsx) yaffs_fsx_complete(); } while (0)
  14
  15 #define FSX() \
  16 do { \
  17   if((myrand() & 0x1) == 0){\
  18      if(interleave_fsx) \
  19         yaffs_fsx_do_op(); \
  20   } \
  21 } while(0)
  22
  23 #else
  24 #define FSX_INIT(mount_point) do { } while(0)
  25 #define FSX_COMPLETE() do { } while(0)
  26 #define FSX() do { } while(0)
  27 #endif
  28
  29
  30 void (*ext_fatal)(void) = NULL;
  31
  32 static unsigned powerUps;
  33 static unsigned cycleStarts;
  34 static unsigned cycleEnds;
  35
  36 static int interleave_fsx;
  37
  38 char fullPathName[100];
  39 char fullPowerUpName[100];
  40 char fullStartName[100];
  41 char fullEndName[100];
  42 char fullMainName[100];
  43 char fullTempMainName[100];
  44 char fullTempCounterName[100];
  45
  46
  47 extern int random_seed;
  48
  49 int myrand(void) {
  50   random_seed = random_seed * 1103515245 + 12345;
  51   return((unsigned)(random_seed/65536) % 32768);
  52 }
  53
  54 void MakeName(char *fullName,const char *prefix, const char *name)
  55 {
  56   strcpy(fullName,prefix);
  57   strcat(fullName,"/");
  58   strcat(fullName,name);
  59 }
  60
  61
  62 void MakeFullNames(const char *prefix)
  63 {
  64   MakeName(fullPathName,prefix,"");
  65   MakeName(fullPowerUpName,prefix,"powerUps");
  66   MakeName(fullStartName,prefix,"starts");
  67   MakeName(fullEndName,prefix,"ends");
  68   MakeName(fullMainName,prefix,"main");
  69   MakeName(fullTempCounterName,prefix,"tmp-counter");
  70   MakeName(fullTempMainName,prefix,"tmp-main");
  71 }
  72
  73 static void FatalError(int lineNo)
  74 {
  75   printf("Integrity error %d\n",lineNo);
  76   if(ext_fatal)
  77         ext_fatal();
  78
  79   while(1){
  80    sleep(1);
  81   }
  82 }
  83 void print_stat(const char *str, struct yaffs_stat *st)
  84 {
  85         printf("%s inode %d\n",str,st->st_ino);
  86 }
  87
  88 static void UpdateCounter(const char *name, unsigned *val,  int initialise)
  89 {
  90   int inh=-1;
  91   int outh=-1;
  92   unsigned x[2];
  93   int nread = 0;
  94   int nwritten = 0;
  95
  96   x[0] = x[1] = 0;
  97
  98   if(initialise){
  99     x[0] = 0;
 100     x[1] = 1;
 101   } else {
 102     inh = yaffs_open(name,O_RDONLY, S_IREAD | S_IWRITE);
 103     if(inh >= 0){
 104       nread = yaffs_read(inh,x,sizeof(x));
 105       yaffs_close(inh);
 106     }
 107
 108     if(nread != sizeof(x) ||
 109        x[0] + 1 != x[1]){
 110       printf("Error reading counter %s handle %d, x[0] %u x[1] %u last error %d\n",
 111               name, inh, x[0], x[1],yaffsfs_GetLastError());
 112       FatalError(__LINE__);
 113
 114     }
 115     x[0]++;
 116     x[1]++;
 117   }
 118
 119   FSX();
 120   outh = yaffs_open(fullTempCounterName, O_RDWR | O_TRUNC | O_CREAT, S_IREAD | S_IWRITE);
 121   if(outh >= 0){
 122    struct yaffs_stat tmpstat, oldstat, tmpfstat;
 123    FSX();
 124     nwritten = yaffs_write(outh,x,sizeof(x));
 125     FSX();
 126     yaffs_fstat(outh,&tmpfstat);
 127     yaffs_close(outh);
 128     FSX();
 129
 130     printf("About to rename %s to %s\n",fullTempCounterName,name);
 131     yaffs_stat(fullTempCounterName,&tmpstat);
 132     yaffs_stat(name,&oldstat);
 133     print_stat("old stat",&oldstat);
 134     print_stat("new stat",&tmpstat);
 135     print_stat("new fstat",&tmpfstat);
 136     yaffs_rename(fullTempCounterName,name);
 137     FSX();
 138   }
 139
 140   if(nwritten != sizeof(x)){
 141       printf("Error writing counter %s handle %d, x[0] %u x[1] %u\n",
 142               name, inh, x[0], x[1]);
 143       FatalError(__LINE__);
 144   }
 145
 146   *val = x[0];
 147
 148   printf("##\n"
 149          "## Set counter %s to %u\n"
 150          "##\n", name,x[0]);
 151 }
 152
 153
 154 static void dump_directory_tree_worker(const char *dname,int recursive)
 155 {
 156         yaffs_DIR *d;
 157         yaffs_dirent *de;
 158         struct yaffs_stat s;
 159         char str[1000];
 160         int error_line = 0;
 161
 162         d = yaffs_opendir(dname);
 163
 164         if(!d)
 165         {
 166                 printf("opendir failed\n");
 167         }
 168         else
 169         {
 170                 while((de = yaffs_readdir(d)) != NULL)
 171                 {
 172                         strcpy(str,dname);
 173                         strcat(str,"/");
 174                         strcat(str,de->d_name);
 175
 176                         yaffs_lstat(str,&s);
 177
 178                         printf("%s inode %ld %d obj %x length %d mode %X ",str, de->d_ino, s.st_ino,de->d_dont_use,(int)s.st_size,s.st_mode);\
 179                         if(de->d_ino != s.st_ino){
 180                                 printf(" \n\n!!!! HEY inode mismatch\n\n");
 181                                 error_line = __LINE__;
 182                         }
 183
 184                         switch(s.st_mode & S_IFMT)
 185                         {
 186                                 case S_IFREG: printf("data file"); break;
 187                                 case S_IFDIR: printf("directory"); break;
 188                                 case S_IFLNK: printf("symlink -->");
 189                                                           if(yaffs_readlink(str,str,100) < 0)
 190                                                                 printf("no alias");
 191                                                           else
 192                                                                 printf("\"%s\"",str);
 193                                                           break;
 194                                 default: printf("unknown"); break;
 195                         }
 196
 197                         printf("\n");
 198
 199                         if((s.st_mode & S_IFMT) == S_IFDIR && recursive)
 200                                 dump_directory_tree_worker(str,1);
 201
 202                         if(s.st_ino > 10000)
 203                           error_line = __LINE__;
 204
 205                 }
 206
 207                 if(error_line)
 208                         FatalError(error_line);
 209
 210                 yaffs_closedir(d);
 211         }
 212
 213 }
 214
 215 static void dump_directory_tree(const char *dname)
 216 {
 217         dump_directory_tree_worker(dname,1);
 218         printf("\n");
 219         printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
 220 }
 221
 222
 223
 224
 225 #define XX_SIZE 500
 226
 227 static unsigned xx[XX_SIZE];
 228
 229 static int yWriteFile(const char *fname, unsigned sz32)
 230 {
 231         int h;
 232         int r;
 233         int i;
 234         struct yaffs_stat st;
 235         unsigned checksum = 0;
 236
 237
 238         FSX();
 239         h = yaffs_open(fname,O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
 240         yaffs_fstat(h,&st);
 241         printf("Writing file %s inode %d\n",fname, st.st_ino);
 242
 243         FSX();
 244
 245         if(h < 0){
 246                 printf("could not open file %s\n",fname);
 247                 return h;
 248         }
 249
 250         xx[0] = sz32;
 251         checksum ^= xx[0];
 252
 253         if((r = yaffs_write(h,xx,sizeof(unsigned))) != sizeof(unsigned)){
 254                 goto WRITE_ERROR;
 255         }
 256         FSX();
 257         while(sz32> 0){
 258                 for(i = 0; i < XX_SIZE; i++){
 259                   xx[i] = sz32 + i;
 260                   checksum ^= xx[i];
 261                 }
 262
 263                 FSX();
 264                 if((r = yaffs_write(h,xx,sizeof(xx))) != sizeof(xx)){
 265                         goto WRITE_ERROR;
 266                 }
 267                 sz32--;
 268         }
 269
 270         xx[0] = checksum;
 271         FSX();
 272         if((r = yaffs_write(h,xx,sizeof(unsigned))) != sizeof(unsigned)){
 273                 goto WRITE_ERROR;
 274         }
 275
 276         FSX();
 277         yaffs_close(h);
 278         return 0;
 279
 280 WRITE_ERROR:
 281         printf("ywrite error at position %d\n",(int)yaffs_lseek(h,0,SEEK_END));
 282         yaffs_close(h);
 283         return -1;
 284
 285 }
 286
 287 static int yVerifyFile(const char *fName)
 288 {
 289         unsigned checksum = 0;
 290         unsigned totalSize;
 291         unsigned sz32;
 292         unsigned recordedSize = 0;
 293         int r;
 294         int h;
 295         int i;
 296         int retval = 0;
 297
 298
 299         printf("Verifying file %s\n",fName);
 300
 301         h = yaffs_open(fName, O_RDONLY,S_IREAD | S_IWRITE);
 302
 303         if(h < 0){
 304                 printf("could not open file %s\n",fName);
 305                 return -1;
 306         }
 307
 308         totalSize = yaffs_lseek(h,0,SEEK_END);
 309         yaffs_lseek(h,0,SEEK_SET);
 310
 311         r = yaffs_read(h,&sz32,sizeof(sz32));
 312
 313         if(r != sizeof(sz32)){
 314                 printf("reading size failed ... returned %d\n",r);
 315                 yaffs_close(h);
 316                 return -1;
 317         }
 318
 319         recordedSize = sz32 * sizeof(xx) + 8;
 320
 321         printf("verify %s: file size is %d, recorded size is %d\n", fName, totalSize, recordedSize);
 322         if(totalSize != recordedSize){
 323                 printf("!!!!!!!!!!!!!!!!!!!!!!!!file size is wrong, should be %d, is %d\n", recordedSize,totalSize);
 324                 yaffs_close(h);
 325                 return -1;
 326         }
 327
 328         checksum ^= sz32;
 329
 330
 331         while(sz32 > 0){
 332                 r = yaffs_read(h,xx,sizeof(xx));
 333                 if(r != sizeof(xx)){
 334                         printf("!!!!!!!!!!!!!!!!!!!!!!!!!!reading data failed ... returned %d\n",r);
 335                         yaffs_close(h);
 336                         return -1;
 337                 }
 338                 for(i = 0; i < XX_SIZE; i++)
 339                   checksum ^= xx[i];
 340                 sz32--;
 341         }
 342         r = yaffs_read(h,xx,sizeof(xx[0]));
 343         if(r != sizeof(xx[0])){
 344                 printf("!!!!!!!!!!!!!!!!!!!!!!!!!!reading data failed ... returned %d\n",r);
 345                 yaffs_close(h);
 346                 return -1;
 347         }
 348
 349         checksum ^= xx[0];
 350
 351         if(checksum != 0){
 352                 printf("!!!!!!!!!!!!!!!!!!!!! checksum failed\n");
 353                 retval = -1;
 354         } else
 355                 printf("verified ok\n");
 356         yaffs_close(h);
 357
 358         return retval;
 359 }
 360
 361
 362 static void DoUpdateMainFile(void)
 363 {
 364         int result;
 365         int sz32;
 366         sz32 = (myrand() % 1000)   + 20;
 367
 368         result = yWriteFile(fullTempMainName,sz32);
 369         FSX();
 370         if(result)
 371             FatalError(__LINE__);
 372         yaffs_rename(fullTempMainName,fullMainName);
 373         FSX();
 374 }
 375
 376 static void DoVerifyMainFile(void)
 377 {
 378         int result;
 379         result = yVerifyFile(fullMainName);
 380         if(result)
 381             FatalError(__LINE__);
 382
 383 }
 384
 385
 386 void NorStressTestInitialise(const char *prefix)
 387 {
 388   MakeFullNames(prefix);
 389
 390   UpdateCounter(fullPowerUpName,&powerUps,1);
 391   UpdateCounter(fullStartName,&cycleStarts,1);
 392   UpdateCounter(fullEndName,&cycleEnds,1);
 393   UpdateCounter(fullPowerUpName,&powerUps,1);
 394   DoUpdateMainFile();
 395   DoVerifyMainFile();
 396 }
 397
 398
 399 void NorStressTestRun(const char *prefix, int n_cycles, int do_fsx)
 400 {
 401   interleave_fsx = do_fsx;
 402   MakeFullNames(prefix);
 403   FSX_INIT(prefix);
 404
 405   dump_directory_tree(fullPathName);
 406
 407   UpdateCounter(fullPowerUpName,&powerUps,0);
 408   dump_directory_tree(fullPathName);
 409
 410   while(n_cycles < 0 || n_cycles > 0){
 411     if(n_cycles > 0)
 412       n_cycles--;
 413     UpdateCounter(fullStartName, &cycleStarts,0);
 414     dump_directory_tree(fullPathName);
 415     DoVerifyMainFile();
 416     DoUpdateMainFile();
 417     dump_directory_tree(fullPathName);
 418
 419     UpdateCounter(fullEndName,&cycleEnds,0);
 420     dump_directory_tree(fullPathName);
 421   }
 422   FSX_COMPLETE();
 423 }