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
 161         d = yaffs_opendir(dname);
 162
 163         if(!d)
 164         {
 165                 printf("opendir failed\n");
 166         }
 167         else
 168         {
 169                 while((de = yaffs_readdir(d)) != NULL)
 170                 {
 171                         strcpy(str,dname);
 172                         strcat(str,"/");
 173                         strcat(str,de->d_name);
 174
 175                         yaffs_lstat(str,&s);
 176
 177                         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);\
 178                         if(de->d_ino != s.st_ino){
 179                                 printf(" \n\n!!!! HEY inode mismatch\n\n");
 180                                 FatalError(__LINE__);
 181                         }
 182
 183                         switch(s.st_mode & S_IFMT)
 184                         {
 185                                 case S_IFREG: printf("data file"); break;
 186                                 case S_IFDIR: printf("directory"); break;
 187                                 case S_IFLNK: printf("symlink -->");
 188                                                           if(yaffs_readlink(str,str,100) < 0)
 189                                                                 printf("no alias");
 190                                                           else
 191                                                                 printf("\"%s\"",str);
 192                                                           break;
 193                                 default: printf("unknown"); break;
 194                         }
 195
 196                         printf("\n");
 197
 198                         if((s.st_mode & S_IFMT) == S_IFDIR && recursive)
 199                                 dump_directory_tree_worker(str,1);
 200
 201                         if(s.st_ino > 10000)
 202                           FatalError(__LINE__);
 203
 204                 }
 205
 206                 yaffs_closedir(d);
 207         }
 208
 209 }
 210
 211 static void dump_directory_tree(const char *dname)
 212 {
 213         dump_directory_tree_worker(dname,1);
 214         printf("\n");
 215         printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
 216 }
 217
 218
 219
 220
 221 #define XX_SIZE 500
 222
 223 static unsigned xx[XX_SIZE];
 224
 225 static int yWriteFile(const char *fname, unsigned sz32)
 226 {
 227         int h;
 228         int r;
 229         int i;
 230         struct yaffs_stat st;
 231         unsigned checksum = 0;
 232
 233
 234         FSX();
 235         h = yaffs_open(fname,O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
 236         yaffs_fstat(h,&st);
 237         printf("Writing file %s inode %d\n",fname, st.st_ino);
 238
 239         FSX();
 240
 241         if(h < 0){
 242                 printf("could not open file %s\n",fname);
 243                 return h;
 244         }
 245
 246         xx[0] = sz32;
 247         checksum ^= xx[0];
 248
 249         if((r = yaffs_write(h,xx,sizeof(unsigned))) != sizeof(unsigned)){
 250                 goto WRITE_ERROR;
 251         }
 252         FSX();
 253         while(sz32> 0){
 254                 for(i = 0; i < XX_SIZE; i++){
 255                   xx[i] = sz32 + i;
 256                   checksum ^= xx[i];
 257                 }
 258
 259                 FSX();
 260                 if((r = yaffs_write(h,xx,sizeof(xx))) != sizeof(xx)){
 261                         goto WRITE_ERROR;
 262                 }
 263                 sz32--;
 264         }
 265
 266         xx[0] = checksum;
 267         FSX();
 268         if((r = yaffs_write(h,xx,sizeof(unsigned))) != sizeof(unsigned)){
 269                 goto WRITE_ERROR;
 270         }
 271
 272         FSX();
 273         yaffs_close(h);
 274         return 0;
 275
 276 WRITE_ERROR:
 277         printf("ywrite error at position %d\n",(int)yaffs_lseek(h,0,SEEK_END));
 278         yaffs_close(h);
 279         return -1;
 280
 281 }
 282
 283 static int yVerifyFile(const char *fName)
 284 {
 285         unsigned checksum = 0;
 286         unsigned totalSize;
 287         unsigned sz32;
 288         unsigned recordedSize = 0;
 289         int r;
 290         int h;
 291         int i;
 292         int retval = 0;
 293
 294
 295         printf("Verifying file %s\n",fName);
 296
 297         h = yaffs_open(fName, O_RDONLY,S_IREAD | S_IWRITE);
 298
 299         if(h < 0){
 300                 printf("could not open file %s\n",fName);
 301                 return -1;
 302         }
 303
 304         totalSize = yaffs_lseek(h,0,SEEK_END);
 305         yaffs_lseek(h,0,SEEK_SET);
 306
 307         r = yaffs_read(h,&sz32,sizeof(sz32));
 308
 309         if(r != sizeof(sz32)){
 310                 printf("reading size failed ... returned %d\n",r);
 311                 yaffs_close(h);
 312                 return -1;
 313         }
 314
 315         recordedSize = sz32 * sizeof(xx) + 8;
 316
 317         printf("verify %s: file size is %d, recorded size is %d\n", fName, totalSize, recordedSize);
 318         if(totalSize != recordedSize){
 319                 printf("!!!!!!!!!!!!!!!!!!!!!!!!file size is wrong, should be %d, is %d\n", recordedSize,totalSize);
 320                 yaffs_close(h);
 321                 return -1;
 322         }
 323
 324         checksum ^= sz32;
 325
 326
 327         while(sz32 > 0){
 328                 r = yaffs_read(h,xx,sizeof(xx));
 329                 if(r != sizeof(xx)){
 330                         printf("!!!!!!!!!!!!!!!!!!!!!!!!!!reading data failed ... returned %d\n",r);
 331                         yaffs_close(h);
 332                         return -1;
 333                 }
 334                 for(i = 0; i < XX_SIZE; i++)
 335                   checksum ^= xx[i];
 336                 sz32--;
 337         }
 338         r = yaffs_read(h,xx,sizeof(xx[0]));
 339         if(r != sizeof(xx[0])){
 340                 printf("!!!!!!!!!!!!!!!!!!!!!!!!!!reading data failed ... returned %d\n",r);
 341                 yaffs_close(h);
 342                 return -1;
 343         }
 344
 345         checksum ^= xx[0];
 346
 347         if(checksum != 0){
 348                 printf("!!!!!!!!!!!!!!!!!!!!! checksum failed\n");
 349                 retval = -1;
 350         } else
 351                 printf("verified ok\n");
 352         yaffs_close(h);
 353
 354         return retval;
 355 }
 356
 357
 358 static void DoUpdateMainFile(void)
 359 {
 360         int result;
 361         int sz32;
 362         sz32 = (myrand() % 1000)   + 20;
 363
 364         result = yWriteFile(fullTempMainName,sz32);
 365         FSX();
 366         if(result)
 367             FatalError(__LINE__);
 368         yaffs_rename(fullTempMainName,fullMainName);
 369         FSX();
 370 }
 371
 372 static void DoVerifyMainFile(void)
 373 {
 374         int result;
 375         result = yVerifyFile(fullMainName);
 376         if(result)
 377             FatalError(__LINE__);
 378
 379 }
 380
 381
 382 void NorStressTestInitialise(const char *prefix)
 383 {
 384   MakeFullNames(prefix);
 385
 386   UpdateCounter(fullPowerUpName,&powerUps,1);
 387   UpdateCounter(fullStartName,&cycleStarts,1);
 388   UpdateCounter(fullEndName,&cycleEnds,1);
 389   UpdateCounter(fullPowerUpName,&powerUps,1);
 390   DoUpdateMainFile();
 391   DoVerifyMainFile();
 392 }
 393
 394
 395 void NorStressTestRun(const char *prefix, int n_cycles, int do_fsx)
 396 {
 397   interleave_fsx = do_fsx;
 398   MakeFullNames(prefix);
 399   FSX_INIT(prefix);
 400
 401   dump_directory_tree(fullPathName);
 402
 403   UpdateCounter(fullPowerUpName,&powerUps,0);
 404   dump_directory_tree(fullPathName);
 405
 406   while(n_cycles < 0 || n_cycles > 0){
 407     if(n_cycles > 0)
 408       n_cycles--;
 409     UpdateCounter(fullStartName, &cycleStarts,0);
 410     dump_directory_tree(fullPathName);
 411     DoVerifyMainFile();
 412     DoUpdateMainFile();
 413     dump_directory_tree(fullPathName);
 414
 415     UpdateCounter(fullEndName,&cycleEnds,0);
 416     dump_directory_tree(fullPathName);
 417   }
 418   FSX_COMPLETE();
 419 }