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