direct/tests/yaffs_test.c

   1 /*
   2  * YAFFS: Yet another FFS. A NAND-flash specific file system.
   3  *
   4  * Copyright (C) 2002 Aleph One Ltd.
   5  *   for Toby Churchill Ltd and Brightstar Engineering
   6  *
   7  * Created by Charles Manning <charles@aleph1.co.uk>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13  */
  14
  15
  16
  17
  18 #include <stdio.h>
  19 #include <string.h>
  20 #include <unistd.h>
  21 #include <fcntl.h>
  22 #include <signal.h>
  23 #include <stdlib.h>
  24
  25 #include "yaffsfs.h"
  26
  27 #include "nor_stress.h"
  28 #include "yaffs_fsx.h"
  29
  30 void (*ext_fatal)(void);
  31
  32
  33 int random_seed;
  34 int simulate_power_failure = 0;
  35
  36
  37 int do_fsx;
  38 int do_bash_around;
  39
  40 int init_test;
  41 int do_upgrade;
  42 int n_cycles = -1;
  43 int yaffs_test_maxMallocs;
  44
  45 extern int ops_multiplier;
  46
  47 char mount_point[200];
  48
  49 #define BASH_HANDLES 20
  50 void yaffs_bash_around(const char *mountpt, int n_cycles)
  51 {
  52         char name[200];
  53         char name1[200];
  54         int  h[BASH_HANDLES];
  55         int i;
  56         int op;
  57         int pos;
  58         int n;
  59         int n1;
  60         int start_op;
  61         int op_max = 99;
  62
  63         int cycle = 0;
  64
  65         sprintf(name,"%s/bashdir",mountpt);
  66
  67         yaffs_mkdir(name,0666);
  68
  69         for(i = 0; i < BASH_HANDLES; i++)
  70                 h[i] = -1;
  71
  72         while(n_cycles){
  73                 if(cycle % 100 == 0){
  74                         printf("CYCLE %8d mo %2d inodes %d space %d ",cycle,op_max,
  75                                 yaffs_inodecount(mountpt),yaffs_freespace(mountpt));
  76                         for(i = 0; i < BASH_HANDLES; i++)
  77                                 printf("%2d ",h[i]);
  78                         printf("\n");
  79                 }
  80                 cycle++;
  81
  82                 if(n_cycles > 0)
  83                         n_cycles--;
  84                 i = rand() % BASH_HANDLES;
  85                 op = rand() % op_max;
  86                 pos = rand() & 20000000;
  87                 n = rand() % 100;
  88                 n1 = rand() % 100;
  89
  90                 sprintf(name,"%s/bashdir/xx%d",mountpt,n);
  91                 sprintf(name1,"%s/bashdir/xx%d",mountpt,n1);
  92
  93                 start_op = op;
  94
  95                 op-=1;
  96                 if(op < 0){
  97                         if(h[i]>= 0){
  98                                 yaffs_close(h[i]);
  99                                 h[i] = -1;
 100                         }
 101                         continue;
 102                 }
 103                 op-=1;
 104                 if(op < 0){
 105                         if(h[i] < 0)
 106                                 h[i] = yaffs_open(name,O_CREAT| O_RDWR, 0666);
 107                         continue;
 108                 }
 109
 110                 op-=5;
 111                 if(op< 0){
 112                         yaffs_lseek(h[i],pos,SEEK_SET);
 113                         yaffs_write(h[i],name,n);
 114                         continue;
 115                 }
 116                 op-=1;
 117                 if(op < 0){
 118                         yaffs_unlink(name);
 119                         continue;
 120                 }
 121                 op-=1;
 122                 if(op < 0){
 123                         yaffs_rename(name,name1);
 124                         continue;
 125                 }
 126                 op-=1;
 127                 if(op < 0){
 128                         yaffs_mkdir(name,0666);
 129                         continue;
 130                 }
 131                 op-=1;
 132                 if(op < 0){
 133                         yaffs_rmdir(name);
 134                         continue;
 135                 }
 136
 137                 op_max = start_op-op;
 138         }
 139
 140
 141 }
 142
 143 void BadUsage(void)
 144 {
 145         printf("Usage: yaffs_test [options] mountpoint\n");
 146         printf("options\n");
 147         printf(" f: do fsx testing\n");
 148         printf(" i: initialise for upgrade testing\n");
 149         printf(" l: multiply number of operations by 5\n");
 150         printf(" m: random max number of mallocs\n");
 151         printf(" n nnn: number of cycles\n");
 152         printf(" p: simulate power fail testing\n");
 153         printf(" s sss: set seed\n");
 154         printf(" u: do upgrade test\n");
 155         printf(" b: bash-about test\n");
 156         exit(2);
 157 }
 158
 159 int sleep_exit = 0;
 160 int sleep_time = 0;
 161 void test_fatal(void)
 162 {
 163         printf("fatal yaffs test pid %d sleeping\n",getpid());
 164         while(!sleep_exit){
 165                 sleep(1);
 166                 sleep_time++;
 167         }
 168
 169         signal(SIGSEGV,SIG_IGN);
 170         signal(SIGBUS,SIG_IGN);
 171         signal(SIGABRT,SIG_IGN);
 172         sleep_exit = 0;
 173
 174 }
 175
 176 void bad_ptr_handler(int sig)
 177 {
 178         printf("signal %d received\n",sig);
 179         test_fatal();
 180 }
 181
 182 int main(int argc, char **argv)
 183 {
 184         int ch;
 185         int random_mallocs=0;
 186         ext_fatal = test_fatal;
 187
 188 #if 1
 189         signal(SIGSEGV,bad_ptr_handler);
 190         signal(SIGBUS,bad_ptr_handler);
 191         signal(SIGABRT,bad_ptr_handler);
 192 #endif
 193         while ((ch = getopt(argc,argv, "bfilmn:ps:u"))
 194                != EOF)
 195                 switch (ch) {
 196                 case 's':
 197                         random_seed = atoi(optarg);
 198                         break;
 199                 case 'p':
 200                         simulate_power_failure =1;
 201                         break;
 202                 case 'i':
 203                         init_test = 1;
 204                         break;
 205                 case 'b':
 206                         do_bash_around = 1;
 207                         break;
 208                 case 'f':
 209                         do_fsx = 1;
 210                         break;
 211                 case 'l':
 212                         ops_multiplier *= 5;
 213                         break;
 214                 case 'u':
 215                         do_upgrade = 1;
 216                         break;
 217                 case 'm':
 218                         random_mallocs=1;
 219                         break;
 220                 case 'n':
 221                         n_cycles = atoi(optarg);
 222                         break;
 223                 default:
 224                         BadUsage();
 225                         /* NOTREACHED */
 226                 }
 227         argc -= optind;
 228         argv += optind;
 229
 230         if(random_mallocs){
 231                 yaffs_test_maxMallocs = 0xFFF & random_seed;
 232         }
 233
 234         if(argc == 1) {
 235                 strcpy(mount_point,argv[0]);
 236
 237                 if(simulate_power_failure)
 238                         n_cycles = -1;
 239                 printf("Running test %s %s %s %s seed %d cycles %d\n",
 240                         do_upgrade ? "fw_upgrade" : "",
 241                         init_test ? "initialise":"",
 242                         do_fsx ? "fsx" :"",
 243                         simulate_power_failure ? "power_fail" : "",
 244                         random_seed, n_cycles);
 245
 246                 yaffs_StartUp();
 247                 yaffs_mount(mount_point);
 248                 printf("Mount complete\n");
 249
 250                 if(do_upgrade && init_test){
 251                         simulate_power_failure = 0;
 252                         NorStressTestInitialise(mount_point);
 253                 } else if(do_upgrade){
 254                         printf("Running stress on %s with seed %d\n",mount_point,random_seed);
 255                         NorStressTestRun(mount_point,n_cycles,do_fsx);
 256                 } else if(do_fsx){
 257                         yaffs_fsx_main(mount_point,n_cycles);
 258                 } else if(do_bash_around){
 259                         yaffs_bash_around(mount_point,n_cycles);
 260                 }else {
 261                         printf("No test to run!\n");
 262                         BadUsage();
 263                 }
 264                 yaffs_unmount(mount_point);
 265
 266                 printf("Test run completed!\n");
 267         }
 268         else
 269                 BadUsage();
 270         return 0;
 271 }
 272
 273