Set up a test framework.
[yaffs2.git] / direct / test-framework / basic-tests / dtest.c
diff --git a/direct/test-framework/basic-tests/dtest.c b/direct/test-framework/basic-tests/dtest.c
new file mode 100644 (file)
index 0000000..153d274
--- /dev/null
@@ -0,0 +1,3164 @@
+/*
+ * YAFFS: Yet another FFS. A NAND-flash specific file system.
+ *
+ * Copyright (C) 2002-2011 Aleph One Ltd.
+ *   for Toby Churchill Ltd and Brightstar Engineering
+ *
+ * Created by Charles Manning <charles@aleph1.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <time.h>
+
+#include "yaffsfs.h"
+
+#include "yaffs_guts.h" /* Only for dumping device innards */
+
+extern int yaffs_trace_mask;
+
+void dumpDir(const char *dname);
+
+void copy_in_a_file(const char *yaffsName,const char *inName)
+{
+       int inh,outh;
+       unsigned char buffer[100];
+       int ni,no;
+       inh = open(inName,O_RDONLY);
+       outh = yaffs_open(yaffsName, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
+
+       while((ni = read(inh,buffer,100)) > 0)
+       {
+               no = yaffs_write(outh,buffer,ni);
+               if(ni != no)
+               {
+                       printf("problem writing yaffs file\n");
+               }
+
+       }
+
+       yaffs_close(outh);
+       close(inh);
+}
+
+void make_a_file(const char *yaffsName,char bval,int sizeOfFile)
+{
+       int outh;
+       int i;
+       unsigned char buffer[100];
+
+       outh = yaffs_open(yaffsName, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
+
+       memset(buffer,bval,100);
+
+       do{
+               i = sizeOfFile;
+               if(i > 100) i = 100;
+               sizeOfFile -= i;
+
+               yaffs_write(outh,buffer,i);
+
+       } while (sizeOfFile > 0);
+
+
+       yaffs_close(outh);
+
+}
+
+void make_pattern_file(char *fn,int size)
+{
+       int outh;
+       int marker;
+       int i;
+       outh = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
+       yaffs_lseek(outh,size-1,SEEK_SET);
+       yaffs_write(outh,"A",1);
+
+       for(i = 0; i < size; i+=256)
+       {
+               marker = ~i;
+               yaffs_lseek(outh,i,SEEK_SET);
+               yaffs_write(outh,&marker,sizeof(marker));
+       }
+       yaffs_close(outh);
+
+}
+
+int check_pattern_file(char *fn)
+{
+       int h;
+       int marker;
+       int i;
+       int size;
+       int ok = 1;
+
+       h = yaffs_open(fn, O_RDWR,0);
+       size = yaffs_lseek(h,0,SEEK_END);
+
+       for(i = 0; i < size; i+=256)
+       {
+               yaffs_lseek(h,i,SEEK_SET);
+               yaffs_read(h,&marker,sizeof(marker));
+               ok = (marker == ~i);
+               if(!ok)
+               {
+                  printf("pattern check failed on file %s, size %d at position %d. Got %x instead of %x\n",
+                                       fn,size,i,marker,~i);
+               }
+       }
+       yaffs_close(h);
+       return ok;
+}
+
+
+
+
+
+int dump_file_data(char *fn)
+{
+       int h;
+       int i = 0;
+       int ok = 1;
+       unsigned char b;
+
+       h = yaffs_open(fn, O_RDWR,0);
+
+
+       printf("%s\n",fn);
+       while(yaffs_read(h,&b,1)> 0)
+       {
+               printf("%02x",b);
+               i++;
+               if(i > 32)
+               {
+                  printf("\n");
+                  i = 0;;
+                }
+       }
+       printf("\n");
+       yaffs_close(h);
+       return ok;
+}
+
+
+
+void dump_file(const char *fn)
+{
+       int i;
+       int size;
+       int h;
+
+       h = yaffs_open(fn,O_RDONLY,0);
+       if(h < 0)
+       {
+               printf("*****\nDump file %s does not exist\n",fn);
+       }
+       else
+       {
+               size = yaffs_lseek(h,0,SEEK_SET);
+               printf("*****\nDump file %s size %d\n",fn,size);
+               for(i = 0; i < size; i++)
+               {
+
+               }
+       }
+}
+
+void create_file_of_size(const char *fn,int syze)
+{
+       int h;
+       int n;
+       int result;
+       int iteration = 0;
+       char xx[200];
+
+       h = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
+
+       while (syze > 0)
+       {
+               sprintf(xx,"%s %8d",fn,iteration);
+               n = strlen(xx);
+               result = yaffs_write(h,xx,n);
+               if(result != n){
+                       printf("Wrote %d, should have been %d. syze is %d\n",result,n,syze);
+                       syze = 0;
+               } else
+                       syze-=n;
+               iteration++;
+       }
+       yaffs_close (h);
+}
+
+void verify_file_of_size(const char *fn,int syze)
+{
+       int h;
+       int result;
+
+       char xx[200];
+       char yy[200];
+       int l;
+
+       int iterations = (syze + strlen(fn) -1)/ strlen(fn);
+
+       h = yaffs_open(fn, O_RDONLY, S_IREAD | S_IWRITE);
+
+       while (iterations > 0)
+       {
+               sprintf(xx,"%s %8d",fn,iterations);
+               l = strlen(xx);
+
+               result = yaffs_read(h,yy,l);
+               yy[l] = 0;
+
+               if(strcmp(xx,yy)){
+                       printf("=====>>>>> verification of file %s failed near position %lld\n",fn,(long long)yaffs_lseek(h,0,SEEK_CUR));
+               }
+               iterations--;
+       }
+       yaffs_close (h);
+}
+
+void create_resized_file_of_size(const char *fn,int syze1,int reSyze, int syze2)
+{
+       int h;
+
+       int iterations;
+
+       h = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
+
+       iterations = (syze1 + strlen(fn) -1)/ strlen(fn);
+       while (iterations > 0)
+       {
+               yaffs_write(h,fn,strlen(fn));
+               iterations--;
+       }
+
+       yaffs_ftruncate(h,reSyze);
+
+       yaffs_lseek(h,0,SEEK_SET);
+       iterations = (syze2 + strlen(fn) -1)/ strlen(fn);
+       while (iterations > 0)
+       {
+               yaffs_write(h,fn,strlen(fn));
+               iterations--;
+       }
+
+       yaffs_close (h);
+}
+
+
+void do_some_file_stuff(const char *path)
+{
+
+       char fn[100];
+
+       sprintf(fn,"%s/%s",path,"f1");
+       create_file_of_size(fn,10000);
+
+       sprintf(fn,"%s/%s",path,"fdel");
+       create_file_of_size(fn,10000);
+       yaffs_unlink(fn);
+
+       sprintf(fn,"%s/%s",path,"f2");
+
+       create_resized_file_of_size(fn,10000,3000,4000);
+}
+
+void yaffs_backward_scan_test(const char *path)
+{
+       char fn[100];
+
+       yaffs_start_up();
+
+       yaffs_mount(path);
+
+       do_some_file_stuff(path);
+
+       sprintf(fn,"%s/ddd",path);
+
+       yaffs_mkdir(fn,0);
+
+       do_some_file_stuff(fn);
+
+       yaffs_unmount(path);
+
+       yaffs_mount(path);
+}
+
+void null_name_test(const char *path)
+{
+       char fn[100];
+       int h;
+       yaffs_start_up();
+
+       yaffs_mount(path);
+
+       sprintf(fn,"%s",path);
+
+       h = yaffs_open(fn,O_CREAT| O_TRUNC| O_RDWR, 0666);
+
+       printf("%d\n",h);
+
+}
+
+char xxzz[2000];
+
+
+void yaffs_device_flush_test(const char *path)
+{
+       char fn[100];
+       int h;
+       int i;
+
+       yaffs_start_up();
+
+       yaffs_mount(path);
+
+       do_some_file_stuff(path);
+
+       // Open and add some data to a few files
+       for(i = 0; i < 10; i++) {
+
+               sprintf(fn,"%s/ff%d",path,i);
+
+               h = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IWRITE | S_IREAD);
+               yaffs_write(h,xxzz,2000);
+               yaffs_write(h,xxzz,2000);
+       }
+       yaffs_unmount(path);
+
+       yaffs_mount(path);
+}
+
+
+
+void short_scan_test(const char *path, int fsize, int niterations)
+{
+       int i;
+       char fn[100];
+
+       sprintf(fn,"%s/%s",path,"f1");
+
+       yaffs_start_up();
+       for(i = 0; i < niterations; i++)
+       {
+               printf("\n*****************\nIteration %d\n",i);
+               yaffs_mount(path);
+               printf("\nmount: Directory look-up of %s\n",path);
+               dumpDir(path);
+               make_a_file(fn,1,fsize);
+               yaffs_unmount(path);
+       }
+}
+
+
+
+void scan_pattern_test(const char *path, int fsize, int niterations)
+{
+       int i;
+       int j;
+       char fn[3][100];
+       int result;
+
+       sprintf(fn[0],"%s/%s",path,"f0");
+       sprintf(fn[1],"%s/%s",path,"f1");
+       sprintf(fn[2],"%s/%s",path,"f2");
+
+       yaffs_start_up();
+
+       for(i = 0; i < niterations; i++)
+       {
+               printf("\n*****************\nIteration %d\n",i);
+               yaffs_mount(path);
+               printf("\nmount: Directory look-up of %s\n",path);
+               dumpDir(path);
+               for(j = 0; j < 3; j++)
+               {
+                       result = dump_file_data(fn[j]);
+                       result = check_pattern_file(fn[j]);
+                       make_pattern_file(fn[j],fsize);
+                       result = dump_file_data(fn[j]);
+                       result = check_pattern_file(fn[j]);
+               }
+               yaffs_unmount(path);
+       }
+}
+
+void fill_disk(const char *path,int nfiles)
+{
+       int h;
+       int n;
+       int result;
+       int f;
+
+        static char xx[600];
+       char str[50];
+
+       for(n = 0; n < nfiles; n++)
+       {
+               sprintf(str,"%s/%d",path,n);
+
+               h = yaffs_open(str, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
+
+               printf("writing file %s handle %d ",str, h);
+
+               while ((result = yaffs_write(h,xx,600)) == 600)
+               {
+                       f = yaffs_freespace(path);
+               }
+               result = yaffs_close(h);
+               printf(" close %d\n",result);
+       }
+}
+
+void fill_disk_and_delete(const char *path, int nfiles, int ncycles)
+{
+       int i,j;
+       char str[50];
+       int result;
+
+       for(i = 0; i < ncycles; i++)
+       {
+               printf("@@@@@@@@@@@@@@ cycle %d\n",i);
+               fill_disk(path,nfiles);
+
+               for(j = 0; j < nfiles; j++)
+               {
+                       sprintf(str,"%s/%d",path,j);
+                       result = yaffs_unlink(str);
+                       printf("unlinking file %s, result %d\n",str,result);
+               }
+       }
+}
+
+
+void fill_files(const char *path,int flags, int maxIterations,int siz)
+{
+       int i;
+       int j;
+       char str[50];
+       int h;
+
+       i = 0;
+
+       do{
+               sprintf(str,"%s/%d",path,i);
+               h = yaffs_open(str, O_CREAT | O_TRUNC | O_RDWR,S_IREAD | S_IWRITE);
+
+               if(h >= 0)
+               {
+                       for(j = 0; j < siz; j++)
+                       {
+                               yaffs_write(h,str,1);
+                       }
+               }
+
+               if( flags & 1)
+               {
+                       yaffs_unlink(str);
+               }
+               i++;
+       } while(h >= 0 && i < maxIterations);
+
+       if(flags & 2)
+       {
+               i = 0;
+               do{
+                       sprintf(str,"%s/%d",path,i);
+                       printf("unlink %s\n",str);
+                       i++;
+               } while(yaffs_unlink(str) >= 0);
+       }
+}
+
+void leave_unlinked_file(const char *path,int maxIterations,int siz)
+{
+       int i;
+       char str[50];
+       int h;
+
+       i = 0;
+
+       do{
+               sprintf(str,"%s/%d",path,i);
+               printf("create %s\n",str);
+               h = yaffs_open(str, O_CREAT | O_TRUNC | O_RDWR,S_IREAD | S_IWRITE);
+               if(h >= 0)
+               {
+                       yaffs_unlink(str);
+               }
+               i++;
+       } while(h < 0 && i < maxIterations);
+
+       if(h >= 0)
+       {
+               for(i = 0; i < siz; i++)
+               {
+                       yaffs_write(h,str,1);
+               }
+       }
+
+       printf("Leaving file %s open\n",str);
+
+}
+
+void dumpDirFollow(const char *dname)
+{
+       yaffs_DIR *d;
+       struct yaffs_dirent *de;
+       struct yaffs_stat s;
+       char str[100];
+
+       d = yaffs_opendir(dname);
+
+       if(!d)
+       {
+               printf("opendir failed\n");
+       }
+       else
+       {
+               while((de = yaffs_readdir(d)) != NULL)
+               {
+                       sprintf(str,"%s/%s",dname,de->d_name);
+
+                       yaffs_lstat(str,&s);
+
+                       printf("%s ino %lld length %d mode %X ",de->d_name,(int)s.st_ino,s.st_size,s.st_mode);
+                       switch(s.st_mode & S_IFMT)
+                       {
+                               case S_IFREG: printf("data file"); break;
+                               case S_IFDIR: printf("directory"); break;
+                               case S_IFLNK: printf("symlink -->");
+                                                         if(yaffs_readlink(str,str,100) < 0)
+                                                               printf("no alias");
+                                                         else
+                                                               printf("\"%s\"",str);
+                                                         break;
+                               default: printf("unknown"); break;
+                       }
+
+                       printf("\n");
+               }
+
+               yaffs_closedir(d);
+       }
+       printf("\n");
+
+       printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
+
+}
+
+
+void dump_directory_tree_worker(const char *dname,int recursive)
+{
+       yaffs_DIR *d;
+       struct yaffs_dirent *de;
+       struct yaffs_stat s;
+       char str[1000];
+
+       d = yaffs_opendir(dname);
+
+       if(!d)
+       {
+               printf("opendir failed\n");
+       }
+       else
+       {
+               while((de = yaffs_readdir(d)) != NULL)
+               {
+                       sprintf(str,"%s/%s",dname,de->d_name);
+
+                       yaffs_lstat(str,&s);
+
+                       printf("%s inode %d obj %x length %lld mode %X ",
+                               str,s.st_ino,de->d_dont_use, s.st_size,s.st_mode);
+                       switch(s.st_mode & S_IFMT)
+                       {
+                               case S_IFREG: printf("data file"); break;
+                               case S_IFDIR: printf("directory"); break;
+                               case S_IFLNK: printf("symlink -->");
+                                                         if(yaffs_readlink(str,str,100) < 0)
+                                                               printf("no alias");
+                                                         else
+                                                               printf("\"%s\"",str);
+                                                         break;
+                               default: printf("unknown"); break;
+                       }
+
+                       printf("\n");
+
+                       if((s.st_mode & S_IFMT) == S_IFDIR && recursive)
+                               dump_directory_tree_worker(str,1);
+
+               }
+
+               yaffs_closedir(d);
+       }
+
+}
+
+static void dump_directory_tree(const char *dname)
+{
+       dump_directory_tree_worker(dname,1);
+       printf("\n");
+       printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
+}
+
+void dumpDir(const char *dname)
+{      dump_directory_tree_worker(dname,0);
+       printf("\n");
+       printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
+}
+
+
+static void PermissionsCheck(const char *path, mode_t tmode, int tflags,int expectedResult)
+{
+       int fd;
+
+       if(yaffs_chmod(path,tmode)< 0) printf("chmod failed\n");
+
+       fd = yaffs_open(path,tflags,0);
+
+       if((fd >= 0) != (expectedResult > 0))
+       {
+               printf("Permissions check %x %x %d failed\n",tmode,tflags,expectedResult);
+       }
+       else
+       {
+               printf("Permissions check %x %x %d OK\n",tmode,tflags,expectedResult);
+       }
+
+
+       yaffs_close(fd);
+
+
+}
+
+int long_test(int argc, char *argv[])
+{
+
+       int f;
+       int r;
+       char buffer[20];
+
+       char str[100];
+
+       int h;
+       mode_t temp_mode;
+       struct yaffs_stat ystat;
+
+       yaffs_start_up();
+
+       yaffs_mount("/boot");
+       yaffs_mount("/data");
+       yaffs_mount("/flash");
+       yaffs_mount("/ram");
+
+       printf("\nDirectory look-up of /boot\n");
+       dumpDir("/boot");
+       printf("\nDirectory look-up of /data\n");
+       dumpDir("/data");
+       printf("\nDirectory look-up of /flash\n");
+       dumpDir("/flash");
+
+       //leave_unlinked_file("/flash",20000,0);
+       //leave_unlinked_file("/data",20000,0);
+
+       leave_unlinked_file("/ram",20,0);
+
+
+       f = yaffs_open("/boot/b1", O_RDONLY,0);
+
+       printf("open /boot/b1 readonly, f=%d\n",f);
+
+       f = yaffs_open("/boot/b1", O_CREAT,S_IREAD | S_IWRITE);
+
+       printf("open /boot/b1 O_CREAT, f=%d\n",f);
+
+
+       r = yaffs_write(f,"hello",1);
+       printf("write %d attempted to write to a read-only file\n",r);
+
+       r = yaffs_close(f);
+
+       printf("close %d\n",r);
+
+       f = yaffs_open("/boot/b1", O_RDWR,0);
+
+       printf("open /boot/b1 O_RDWR,f=%d\n",f);
+
+
+       r = yaffs_write(f,"hello",2);
+       printf("write %d attempted to write to a writeable file\n",r);
+       r = yaffs_write(f,"world",3);
+       printf("write %d attempted to write to a writeable file\n",r);
+
+       r= yaffs_lseek(f,0,SEEK_END);
+       printf("seek end %d\n",r);
+       memset(buffer,0,20);
+       r = yaffs_read(f,buffer,10);
+       printf("read %d \"%s\"\n",r,buffer);
+       r= yaffs_lseek(f,0,SEEK_SET);
+       printf("seek set %d\n",r);
+       memset(buffer,0,20);
+       r = yaffs_read(f,buffer,10);
+       printf("read %d \"%s\"\n",r,buffer);
+       memset(buffer,0,20);
+       r = yaffs_read(f,buffer,10);
+       printf("read %d \"%s\"\n",r,buffer);
+
+       // Check values reading at end.
+       // A read past end of file should return 0 for 0 bytes read.
+
+       r= yaffs_lseek(f,0,SEEK_END);
+       r = yaffs_read(f,buffer,10);
+       printf("read at end returned  %d\n",r);
+       r= yaffs_lseek(f,500,SEEK_END);
+       r = yaffs_read(f,buffer,10);
+       printf("read past end returned  %d\n",r);
+
+       r = yaffs_close(f);
+
+       printf("close %d\n",r);
+
+       copy_in_a_file("/boot/yyfile","xxx");
+
+       // Create a file with a long name
+
+       copy_in_a_file("/boot/file with a long name","xxx");
+
+
+       printf("\nDirectory look-up of /boot\n");
+       dumpDir("/boot");
+
+       // Check stat
+       r = yaffs_lstat("/boot/file with a long name",&ystat);
+
+       // Check rename
+
+       r = yaffs_rename("/boot/file with a long name","/boot/r1");
+
+       printf("\nDirectory look-up of /boot\n");
+       dumpDir("/boot");
+
+       // Check unlink
+       r = yaffs_unlink("/boot/r1");
+
+       printf("\nDirectory look-up of /boot\n");
+       dumpDir("/boot");
+
+       // Check mkdir
+
+       r = yaffs_mkdir("/boot/directory1",0);
+
+       printf("\nDirectory look-up of /boot\n");
+       dumpDir("/boot");
+       printf("\nDirectory look-up of /boot/directory1\n");
+       dumpDir("/boot/directory1");
+
+       // add a file to the directory
+       copy_in_a_file("/boot/directory1/file with a long name","xxx");
+
+       printf("\nDirectory look-up of /boot\n");
+       dumpDir("/boot");
+       printf("\nDirectory look-up of /boot/directory1\n");
+       dumpDir("/boot/directory1");
+
+       //  Attempt to delete directory (should fail)
+
+       r = yaffs_rmdir("/boot/directory1");
+
+       printf("\nDirectory look-up of /boot\n");
+       dumpDir("/boot");
+       printf("\nDirectory look-up of /boot/directory1\n");
+       dumpDir("/boot/directory1");
+
+       // Delete file first, then rmdir should work
+       r = yaffs_unlink("/boot/directory1/file with a long name");
+       r = yaffs_rmdir("/boot/directory1");
+
+
+       printf("\nDirectory look-up of /boot\n");
+       dumpDir("/boot");
+       printf("\nDirectory look-up of /boot/directory1\n");
+       dumpDir("/boot/directory1");
+
+#if 0
+       fill_disk_and_delete("/boot",20,20);
+
+       printf("\nDirectory look-up of /boot\n");
+       dumpDir("/boot");
+#endif
+
+       yaffs_symlink("yyfile","/boot/slink");
+
+       yaffs_readlink("/boot/slink",str,100);
+       printf("symlink alias is %s\n",str);
+
+
+
+
+       printf("\nDirectory look-up of /boot\n");
+       dumpDir("/boot");
+       printf("\nDirectory look-up of /boot (using stat instead of lstat)\n");
+       dumpDirFollow("/boot");
+       printf("\nDirectory look-up of /boot/directory1\n");
+       dumpDir("/boot/directory1");
+
+       h = yaffs_open("/boot/slink",O_RDWR,0);
+
+       printf("file length is %d\n",(int)yaffs_lseek(h,0,SEEK_END));
+
+       yaffs_close(h);
+
+       yaffs_unlink("/boot/slink");
+
+
+       printf("\nDirectory look-up of /boot\n");
+       dumpDir("/boot");
+
+       // Check chmod
+
+       yaffs_lstat("/boot/yyfile",&ystat);
+       temp_mode = ystat.st_mode;
+
+       yaffs_chmod("/boot/yyfile",0x55555);
+       printf("\nDirectory look-up of /boot\n");
+       dumpDir("/boot");
+
+       yaffs_chmod("/boot/yyfile",temp_mode);
+       printf("\nDirectory look-up of /boot\n");
+       dumpDir("/boot");
+
+       // Permission checks...
+       PermissionsCheck("/boot/yyfile",0, O_WRONLY,0);
+       PermissionsCheck("/boot/yyfile",0, O_RDONLY,0);
+       PermissionsCheck("/boot/yyfile",0, O_RDWR,0);
+
+       PermissionsCheck("/boot/yyfile",S_IREAD, O_WRONLY,0);
+       PermissionsCheck("/boot/yyfile",S_IREAD, O_RDONLY,1);
+       PermissionsCheck("/boot/yyfile",S_IREAD, O_RDWR,0);
+
+       PermissionsCheck("/boot/yyfile",S_IWRITE, O_WRONLY,1);
+       PermissionsCheck("/boot/yyfile",S_IWRITE, O_RDONLY,0);
+       PermissionsCheck("/boot/yyfile",S_IWRITE, O_RDWR,0);
+
+       PermissionsCheck("/boot/yyfile",S_IREAD | S_IWRITE, O_WRONLY,1);
+       PermissionsCheck("/boot/yyfile",S_IREAD | S_IWRITE, O_RDONLY,1);
+       PermissionsCheck("/boot/yyfile",S_IREAD | S_IWRITE, O_RDWR,1);
+
+       yaffs_chmod("/boot/yyfile",temp_mode);
+
+       //create a zero-length file and unlink it (test for scan bug)
+
+       h = yaffs_open("/boot/zlf",O_CREAT | O_TRUNC | O_RDWR,0);
+       yaffs_close(h);
+
+       yaffs_unlink("/boot/zlf");
+
+
+       yaffs_dump_dev("/boot");
+
+       fill_disk_and_delete("/boot",20,20);
+
+       yaffs_dump_dev("/boot");
+
+       fill_files("/boot",1,10000,0);
+       fill_files("/boot",1,10000,5000);
+       fill_files("/boot",2,10000,0);
+       fill_files("/boot",2,10000,5000);
+
+       leave_unlinked_file("/data",20000,0);
+       leave_unlinked_file("/data",20000,5000);
+       leave_unlinked_file("/data",20000,5000);
+       leave_unlinked_file("/data",20000,5000);
+       leave_unlinked_file("/data",20000,5000);
+       leave_unlinked_file("/data",20000,5000);
+
+       yaffs_dump_dev("/boot");
+       yaffs_dump_dev("/data");
+
+
+
+       return 0;
+
+}
+
+int huge_directory_test_on_path(char *path)
+{
+
+       yaffs_DIR *d;
+       struct yaffs_dirent *de;
+       struct yaffs_stat s;
+
+       int f;
+       int i;
+
+       int total = 0;
+       int lastTotal = 0;
+
+       char str[100];
+
+
+       yaffs_start_up();
+
+       yaffs_mount(path);
+
+       // Create a large number of files
+
+       for(i = 0; i < 2000; i++)
+       {
+         sprintf(str,"%s/%d",path,i);
+
+          f = yaffs_open(str,O_CREAT,S_IREAD | S_IWRITE);
+          yaffs_close(f);
+       }
+
+
+
+       d = yaffs_opendir(path);
+       i = 0;
+       if (d) {
+       while((de = yaffs_readdir(d)) != NULL) {
+       if (total >lastTotal+100*9*1024||(i & 1023)==0){
+       printf("files = %d, total = %d\n",i, total);
+       lastTotal = total;
+       }
+               i++;
+               sprintf(str,"%s/%s",path,de->d_name);
+               yaffs_lstat(str,&s);
+               switch(s.st_mode & S_IFMT){
+               case S_IFREG:
+       //printf("data file");
+       total += s.st_size;
+       break;
+       }
+       }
+
+       yaffs_closedir(d);
+       }
+
+       return 0;
+}
+
+int yaffs_scan_test(const char *path)
+{
+       return 0;
+}
+
+
+void rename_over_test(const char *mountpt)
+{
+       int i;
+       char a[100];
+       char b[100];
+       char c[100];
+
+       sprintf(a,"%s/a",mountpt);
+       sprintf(b,"%s/b",mountpt);
+       sprintf(c,"%s/c",mountpt);
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       printf("Existing files\n");
+       dumpDirFollow(mountpt);
+
+
+
+       i = yaffs_open(c,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+       printf("File c handle is %d\n",i);
+       yaffs_close(i);
+       i = yaffs_open(a,O_CREAT | O_TRUNC | O_RDWR,  S_IREAD | S_IWRITE);
+       yaffs_close(i);
+       i = yaffs_open(b,O_CREAT | O_TRUNC | O_RDWR,  S_IREAD | S_IWRITE);
+       yaffs_close(i);
+       yaffs_rename(a,b); // rename over
+       yaffs_rename(b,a); // rename back again (not renaimng over)
+       yaffs_rename(a,b); // rename back again (not renaimng over)
+
+
+       yaffs_unmount(mountpt);
+
+}
+
+
+int resize_stress_test(const char *path)
+{
+   int a,b,i,j;
+   int x;
+   int r;
+   char aname[100];
+   char bname[100];
+
+   char abuffer[1000];
+   char bbuffer[1000];
+
+   yaffs_start_up();
+
+   yaffs_mount(path);
+
+   sprintf(aname,"%s%s",path,"/a");
+   sprintf(bname,"%s%s",path,"/b");
+
+   memset(abuffer,'a',1000);
+   memset(bbuffer,'b',1000);
+
+   a = yaffs_open(aname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+   b = yaffs_open(bname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+
+   printf(" %s %d %s %d\n",aname,a,bname,b);
+
+   x = 0;
+
+   for(j = 0; j < 100; j++)
+   {
+               yaffs_lseek(a,0,SEEK_END);
+
+
+               for(i = 0; i <20000; i++)
+               {
+                  //r =        yaffs_lseek(b,i,SEEK_SET);
+                       //r = yaffs_write(b,bbuffer,1000);
+
+                       if(x & 0x16)
+                       {
+                               // shrink
+                               int syz = yaffs_lseek(a,0,SEEK_END);
+
+                               syz -= 500;
+                               if(syz < 0) syz = 0;
+                               yaffs_ftruncate(a,syz);
+
+                       }
+                       else
+                       {
+                               //expand
+                               r = yaffs_lseek(a,i * 500,SEEK_SET);
+                               r = yaffs_write(a,abuffer,1000);
+                       }
+                       x++;
+
+               }
+   }
+
+   return 0;
+
+}
+
+
+int overwrite_test(const char *path)
+{
+   char aname[100];
+   char bname[100];
+   int i;
+   int j;
+   int a;
+   int b;
+   yaffs_start_up();
+
+   yaffs_mount(path);
+
+   sprintf(aname,"%s%s",path,"/a");
+   sprintf(bname,"%s%s",path,"/b");
+
+   b = yaffs_open(bname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+   for(j= 0; j < 500; j++){
+       yaffs_write(b,bname,100);
+       a = yaffs_open(aname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+       for(i = 0; i < rand() % 20000; i++)
+               yaffs_write(a,&a,sizeof(a));
+       yaffs_close(a);
+   }
+
+   return 0;
+
+}
+
+
+int root_perm_remount(const char *path)
+{
+   struct yaffs_stat s;
+
+   yaffs_start_up();
+
+   yaffs_mount(path);
+
+   yaffs_lstat(path,&s);
+   printf("root perms after mount %x\n",s.st_mode);
+
+   yaffs_chmod(path, 0777);
+
+   yaffs_lstat(path,&s);
+   printf("root perms after setting to 0777 is  %x\n",s.st_mode);
+
+   yaffs_unmount(path);
+
+   return 0;
+
+}
+
+
+int resize_stress_test_no_grow_complex(const char *path,int iters)
+{
+   int a,b,i,j;
+   int x;
+   int r;
+   char aname[100];
+   char bname[100];
+
+   char abuffer[1000];
+   char bbuffer[1000];
+
+
+   yaffs_start_up();
+
+   yaffs_mount(path);
+
+   sprintf(aname,"%s%s",path,"/a");
+   sprintf(bname,"%s%s",path,"/b");
+
+   memset(abuffer,'a',1000);
+   memset(bbuffer,'b',1000);
+
+   a = yaffs_open(aname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+   b = yaffs_open(bname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+
+   printf(" %s %d %s %d\n",aname,a,bname,b);
+
+   x = 0;
+
+   for(j = 0; j < iters; j++)
+   {
+               yaffs_lseek(a,0,SEEK_END);
+
+
+               for(i = 0; i <20000; i++)
+               {
+                  //r =        yaffs_lseek(b,i,SEEK_SET);
+                       //r = yaffs_write(b,bbuffer,1000);
+
+                       if(!(x%20))
+                       {
+                               // shrink
+                               int syz = yaffs_lseek(a,0,SEEK_END);
+
+                               while(syz > 4000)
+                               {
+
+                                       syz -= 2050;
+                                       if(syz < 0) syz = 0;
+                                       yaffs_ftruncate(a,syz);
+                                       syz = yaffs_lseek(a,0,SEEK_END);
+                                       printf("shrink to %d\n",syz);
+                               }
+
+
+                       }
+                       else
+                       {
+                               //expand
+                               r = yaffs_lseek(a,500,SEEK_END);
+                               r = yaffs_write(a,abuffer,1000);
+                       }
+                       x++;
+
+
+               }
+
+               printf("file size is %lld\n",(long long)yaffs_lseek(a,0,SEEK_END));
+
+   }
+
+   return 0;
+
+}
+
+int resize_stress_test_no_grow(const char *path,int iters)
+{
+   int a,b,i,j;
+   int x;
+   int r;
+   char aname[100];
+   char bname[100];
+
+   char abuffer[1000];
+   char bbuffer[1000];
+
+   yaffs_start_up();
+
+   yaffs_mount(path);
+
+   sprintf(aname,"%s%s",path,"/a");
+   sprintf(bname,"%s%s",path,"/b");
+
+   memset(abuffer,'a',1000);
+   memset(bbuffer,'b',1000);
+
+   a = yaffs_open(aname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+   b = yaffs_open(bname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+
+   printf(" %s %d %s %d\n",aname,a,bname,b);
+
+   x = 0;
+
+   for(j = 0; j < iters; j++)
+   {
+               yaffs_lseek(a,0,SEEK_END);
+
+
+               for(i = 0; i <20000; i++)
+               {
+                  //r =        yaffs_lseek(b,i,SEEK_SET);
+                       //r = yaffs_write(b,bbuffer,1000);
+
+                       if(!(x%20))
+                       {
+                               // shrink
+                               int syz = yaffs_lseek(a,0,SEEK_END);
+
+                               while(syz > 4000)
+                               {
+
+                                       syz -= 2050;
+                                       if(syz < 0) syz = 0;
+                                       yaffs_ftruncate(a,syz);
+                                       syz = yaffs_lseek(a,0,SEEK_END);
+                                       printf("shrink to %d\n",syz);
+                               }
+
+
+                       }
+                       else
+                       {
+                               //expand
+                               r = yaffs_lseek(a,-500,SEEK_END);
+                               r = yaffs_write(a,abuffer,1000);
+                       }
+                       x++;
+
+
+               }
+               printf("file size is %lld\n",(long long)yaffs_lseek(a,0,SEEK_END));
+
+   }
+
+   return 0;
+
+}
+
+int directory_rename_test(void)
+{
+       int r;
+       yaffs_start_up();
+
+       yaffs_mount("/ram");
+       yaffs_mkdir("/ram/a",0);
+       yaffs_mkdir("/ram/a/b",0);
+       yaffs_mkdir("/ram/c",0);
+
+       printf("\nDirectory look-up of /ram\n");
+       dumpDir("/ram");
+       dumpDir("/ram/a");
+       dumpDir("/ram/a/b");
+
+       printf("Do rename (should fail)\n");
+
+       r = yaffs_rename("/ram/a","/ram/a/b/d");
+       printf("\nDirectory look-up of /ram\n");
+       dumpDir("/ram");
+       dumpDir("/ram/a");
+       dumpDir("/ram/a/b");
+
+       printf("Do rename (should not fail)\n");
+
+       r = yaffs_rename("/ram/c","/ram/a/b/d");
+       printf("\nDirectory look-up of /ram\n");
+       dumpDir("/ram");
+       dumpDir("/ram/a");
+       dumpDir("/ram/a/b");
+
+
+       return 1;
+
+}
+
+int cache_read_test(void)
+{
+       int a,b,c;
+       int i;
+       int sizeOfFiles = 500000;
+       char buffer[100];
+
+       yaffs_start_up();
+
+       yaffs_mount("/boot");
+
+       make_a_file("/boot/a",'a',sizeOfFiles);
+       make_a_file("/boot/b",'b',sizeOfFiles);
+
+       a = yaffs_open("/boot/a",O_RDONLY,0);
+       b = yaffs_open("/boot/b",O_RDONLY,0);
+       c = yaffs_open("/boot/c", O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
+
+       do{
+               i = sizeOfFiles;
+               if (i > 100) i = 100;
+               sizeOfFiles  -= i;
+               yaffs_read(a,buffer,i);
+               yaffs_read(b,buffer,i);
+               yaffs_write(c,buffer,i);
+       } while(sizeOfFiles > 0);
+
+
+
+       return 1;
+
+}
+
+int cache_bypass_bug_test(void)
+{
+       // This test reporoduces a bug whereby YAFFS caching *was* buypassed
+       // resulting in erroneous reads after writes.
+       // This bug has been fixed.
+
+       int a;
+       char buffer1[1000];
+       char buffer2[1000];
+
+       memset(buffer1,0,sizeof(buffer1));
+       memset(buffer2,0,sizeof(buffer2));
+
+       yaffs_start_up();
+
+       yaffs_mount("/boot");
+
+       // Create a file of 2000 bytes.
+       make_a_file("/boot/a",'X',2000);
+
+       a = yaffs_open("/boot/a",O_RDWR, S_IREAD | S_IWRITE);
+
+       // Write a short sequence to the file.
+       // This will go into the cache.
+       yaffs_lseek(a,0,SEEK_SET);
+       yaffs_write(a,"abcdefghijklmnopqrstuvwxyz",20);
+
+       // Read a short sequence from the file.
+       // This will come from the cache.
+       yaffs_lseek(a,0,SEEK_SET);
+       yaffs_read(a,buffer1,30);
+
+       // Read a page size sequence from the file.
+       yaffs_lseek(a,0,SEEK_SET);
+       yaffs_read(a,buffer2,512);
+
+       printf("buffer 1 %s\n",buffer1);
+       printf("buffer 2 %s\n",buffer2);
+
+       if(strncmp(buffer1,buffer2,20))
+       {
+               printf("Cache bypass bug detected!!!!!\n");
+       }
+
+
+       return 1;
+}
+
+
+int free_space_check(void)
+{
+       int f;
+
+               yaffs_start_up();
+               yaffs_mount("/boot");
+           fill_disk("/boot/",2);
+           f = yaffs_freespace("/boot");
+
+           printf("%d free when disk full\n",f);
+           return 1;
+}
+
+int truncate_test(void)
+{
+       int a;
+       int r;
+       int i;
+       int l;
+
+       char y[10];
+
+       yaffs_start_up();
+       yaffs_mount("/boot");
+
+       yaffs_unlink("/boot/trunctest");
+
+       a = yaffs_open("/boot/trunctest", O_CREAT | O_TRUNC | O_RDWR,  S_IREAD | S_IWRITE);
+
+       yaffs_write(a,"abcdefghijklmnopqrstuvwzyz",26);
+
+       yaffs_ftruncate(a,3);
+       l= yaffs_lseek(a,0,SEEK_END);
+
+       printf("truncated length is %d\n",l);
+
+       yaffs_lseek(a,5,SEEK_SET);
+       yaffs_write(a,"1",1);
+
+       yaffs_lseek(a,0,SEEK_SET);
+
+       r = yaffs_read(a,y,10);
+
+       printf("read %d bytes:",r);
+
+       for(i = 0; i < r; i++) printf("[%02X]",y[i]);
+
+       printf("\n");
+
+       return 0;
+
+}
+
+
+
+
+
+void fill_disk_test(const char *mountpt)
+{
+       int i;
+       yaffs_start_up();
+
+       for(i = 0; i < 5; i++)
+       {
+               yaffs_mount(mountpt);
+               fill_disk_and_delete(mountpt,100,i+1);
+               yaffs_unmount(mountpt);
+       }
+
+}
+
+
+void fill_files_test(const char *mountpt)
+{
+       int i;
+       yaffs_start_up();
+
+       for(i = 0; i < 5; i++)
+       {
+               yaffs_mount(mountpt);
+               fill_files(mountpt,2,3,100);
+               yaffs_unmount(mountpt);
+       }
+
+}
+
+void fill_empty_files_test(const char *mountpt)
+{
+       int i;
+       yaffs_start_up();
+       char name[100];
+       int result = 0;
+
+       int d,f;
+
+       for(i = 0; i < 5; i++)
+       {
+               yaffs_mount(mountpt);
+               for(d = 0; result >= 0 && d < 1000; d++){
+                       sprintf(name,"%s/%d",mountpt,d);
+                       result= yaffs_mkdir(name,0);
+                       printf("creating directory %s result %d\n",name,result);
+
+                       for(f = 0; result >= 0 && f < 100; f++){
+                               sprintf(name,"%s/%d/%d",mountpt,d,f);
+                               result= yaffs_open(name,O_CREAT, 0);
+                               yaffs_close(result);
+                               printf("creating file %s result %d\n",name,result);
+                       }
+               }
+               yaffs_unmount(mountpt);
+       }
+
+}
+
+void long_name_test(const char *mountpt)
+{
+       int i;
+       yaffs_start_up();
+       char fullName[1000];
+       char name[300];
+       int result = 0;
+
+       int f;
+
+       // Make a 256 byte name
+       memset(name,0,sizeof(name));
+       for(i = 0; i < 256; i++)
+               name[i] = '0' + i % 10;
+
+       sprintf(fullName,"%s/%s",mountpt,name);
+
+       for(i = 0; i < 1; i++)
+       {
+               yaffs_mount(mountpt);
+
+               printf("Files at start\n");
+               dumpDir(mountpt);
+
+               printf("Creating file %s\n",fullName);
+
+               f = yaffs_open(fullName,O_CREAT | O_RDWR,0);
+               yaffs_close(f);
+
+               printf("Result %d\n",f);
+
+               printf("Files\n");
+               dumpDir(mountpt);
+
+               printf("Deleting %s\n",fullName);
+               result = yaffs_unlink(fullName);
+               printf("Result %d\n",result);
+
+               printf("Files\n");
+
+               dumpDir(mountpt);
+
+               yaffs_unmount(mountpt);
+       }
+
+}
+
+
+void lookup_test(const char *mountpt)
+{
+       int i;
+       int h;
+       char a[100];
+
+
+       yaffs_DIR *d;
+       struct yaffs_dirent *de;
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       d = yaffs_opendir(mountpt);
+
+       if(!d)
+       {
+               printf("opendir failed\n");
+       }
+       else
+       {
+
+               for(i = 0; (de = yaffs_readdir(d)) != NULL; i++)
+               {
+                       printf("unlinking %s\n",de->d_name);
+                       yaffs_unlink(de->d_name);
+               }
+
+               printf("%d files deleted\n",i);
+       }
+
+
+       for(i = 0; i < 2000; i++){
+       sprintf(a,"%s/%d",mountpt,i);
+               h =  yaffs_open(a,O_CREAT | O_TRUNC | O_RDWR, 0);
+               yaffs_close(h);
+       }
+
+       yaffs_rewinddir(d);
+       for(i = 0; (de = yaffs_readdir(d)) != NULL; i++)
+       {
+               printf("%d  %s\n",i,de->d_name);
+       }
+
+       printf("%d files listed\n\n\n",i);
+
+       yaffs_rewinddir(d);
+       yaffs_readdir(d);
+       yaffs_readdir(d);
+       yaffs_readdir(d);
+
+       for(i = 0; i < 2000; i++){
+               sprintf(a,"%s/%d",mountpt,i);
+               yaffs_unlink(a);
+       }
+
+
+       yaffs_unmount(mountpt);
+
+}
+
+void link_test0(const char *mountpt)
+{
+       char namea[300];
+       char nameb[300];
+       int result = 0;
+
+
+       yaffs_start_up();
+       yaffs_mount(mountpt);
+
+
+       sprintf(namea,"%s/a",mountpt);
+       sprintf(nameb,"%s/b",mountpt);
+
+       printf("mounted\n");
+        dumpDir(mountpt);
+
+       yaffs_unlink(namea);
+       printf("a unlinked\n");
+        dumpDir(mountpt);
+
+       yaffs_unlink(nameb);
+       printf("b unlinked\n");
+        dumpDir(mountpt);
+
+       result = yaffs_open(namea,O_CREAT| O_RDWR,0666);
+        yaffs_close(result);
+       printf("a created\n");
+        dumpDir(mountpt);
+
+        yaffs_link(namea,nameb);
+        printf("linked\n");
+        dumpDir(mountpt);
+        yaffs_unlink(namea);
+        printf("a ulinked\n");
+        dumpDir(mountpt);
+        yaffs_unlink(nameb);
+        printf("b unlinked\n");
+        dumpDir(mountpt);
+
+       yaffs_unmount(mountpt);
+}
+
+
+void link_test1(const char *mountpt)
+{
+       int i;
+       int h;
+       char a[100];
+       char b[100];
+       char c[100];
+
+       sprintf(a,"%s/aaa",mountpt);
+       sprintf(b,"%s/bbb",mountpt);
+       sprintf(c,"%s/ccc",mountpt);
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+
+       h = yaffs_open(a, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+       for(i = 0; i < 100; i++)
+               yaffs_write(h,a,100);
+
+       yaffs_close(h);
+
+       yaffs_unlink(b);
+       yaffs_unlink(c);
+       yaffs_link(a,b);
+       yaffs_link(a,c);
+       yaffs_unlink(b);
+       yaffs_unlink(c);
+       yaffs_unlink(a);
+
+
+       yaffs_unmount(mountpt);
+       yaffs_mount(mountpt);
+
+       printf("link test done\n");
+}
+
+void handle_test(const char *mountpt)
+{
+       int i;
+       int h;
+       int cycle;
+       char a[100];
+
+       sprintf(a,"%s/aaa",mountpt);
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+        for(cycle = 0; cycle < 5; cycle++){
+        printf("Start cycle %d\n",cycle);
+       i = 0;
+       do {
+        h = yaffs_open(a, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+       printf("%d  handle %d\n",i,h);
+       i++;
+       } while(h >= 0);
+
+       while(i >= -1) {
+        yaffs_close(i);
+        i--;
+        }
+        }
+
+       yaffs_unmount(mountpt);
+}
+
+void freespace_test(const char *mountpt)
+{
+       int i;
+       int h;
+       char a[100];
+
+       int  f0;
+       int f1;
+       int f2;
+       int f3;
+       sprintf(a,"%s/aaa",mountpt);
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       f0 = yaffs_freespace(mountpt);
+
+       h = yaffs_open(a, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+
+       for(i = 0; i < 100; i++)
+               yaffs_write(h,a,100);
+
+       yaffs_close(h);
+
+       f1 = yaffs_freespace(mountpt);
+
+       yaffs_unlink(a);
+
+       f2 = yaffs_freespace(mountpt);
+
+
+       yaffs_unmount(mountpt);
+       yaffs_mount(mountpt);
+
+       f3 = yaffs_freespace(mountpt);
+
+       printf("%d\n%d\n%d\n%d\n",f0, f1,f2,f3);
+
+
+}
+
+void simple_rw_test(const char *mountpt)
+{
+       int i;
+       int h;
+       char a[100];
+
+       int x;
+       int result;
+
+       sprintf(a,"%s/aaa",mountpt);
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       yaffs_unlink(a);
+
+       h = yaffs_open(a,O_CREAT| O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+
+       for(i = 100000;i < 200000; i++){
+               result = yaffs_write(h,&i,sizeof(i));
+
+               if(result != 4)
+               {
+                       printf("write error\n");
+                       exit(1);
+               }
+       }
+
+       //yaffs_close(h);
+
+       // h = yaffs_open(a,O_RDWR, S_IREAD | S_IWRITE);
+
+
+       yaffs_lseek(h,0,SEEK_SET);
+
+       for(i = 100000; i < 200000; i++){
+               result = yaffs_read(h,&x,sizeof(x));
+
+               if(result != 4 || x != i){
+                       printf("read error %d %x %x\n",i,result,x);
+               }
+       }
+
+       printf("Simple rw test passed\n");
+
+
+
+}
+
+
+void scan_deleted_files_test(const char *mountpt)
+{
+       char fn[100];
+       char sub[100];
+
+       const char *p;
+
+       int i;
+       int j;
+       int k;
+       int h;
+
+       sprintf(sub,"%s/sdir",mountpt);
+       yaffs_start_up();
+
+       for(j = 0; j < 10; j++)
+       {
+               printf("\n\n>>>>>>> Run %d <<<<<<<<<<<<<\n\n",j);
+               yaffs_mount(mountpt);
+               yaffs_mkdir(sub,0);
+
+
+               p = (j & 0) ? mountpt: sub;
+
+               for(i = 0; i < 100; i++)
+               {
+                 sprintf(fn,"%s/%d",p,i);
+
+                 if(i & 1)
+                 {
+                         h = yaffs_open(fn,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+                         for(k = 0; k < 1000; k++)
+                                 yaffs_write(h,fn,100);
+                         yaffs_close(h);
+                 }
+                 else
+                       yaffs_mkdir(fn,0);
+               }
+
+               for(i = 0; i < 10; i++)
+               {
+                 sprintf(fn,"%s/%d",p,i);
+                 if(i & 1)
+                       yaffs_unlink(fn);
+                 else
+                       yaffs_rmdir(fn);
+
+               }
+
+               yaffs_unmount(mountpt);
+       }
+
+
+
+
+}
+
+
+void write_10k(int h)
+{
+   int i;
+   const char *s="0123456789";
+   for(i = 0; i < 1000; i++)
+     yaffs_write(h,s,10);
+
+}
+void write_200k_file(const char *fn, const char *fdel, const char *fdel1)
+{
+   int h1;
+   int i;
+   int offs;
+
+   h1 = yaffs_open(fn, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+
+   for(i = 0; i < 100000; i+= 10000)
+   {
+       write_10k(h1);
+   }
+
+   offs = yaffs_lseek(h1,0,SEEK_CUR);
+   if( offs != 100000)
+   {
+       printf("Could not write file\n");
+   }
+
+   yaffs_unlink(fdel);
+   for(i = 0; i < 100000; i+= 10000)
+   {
+       write_10k(h1);
+   }
+
+   offs = yaffs_lseek(h1,0,SEEK_CUR);
+   if( offs != 200000)
+   {
+       printf("Could not write file\n");
+   }
+
+   yaffs_close(h1);
+   yaffs_unlink(fdel1);
+
+}
+
+
+void verify_200k_file(const char *fn)
+{
+   int h1;
+   int i;
+   char x[11];
+   const char *s="0123456789";
+   int errCount = 0;
+
+   h1 = yaffs_open(fn, O_RDONLY, 0);
+
+   for(i = 0; i < 200000 && errCount < 10; i+= 10)
+   {
+       yaffs_read(h1,x,10);
+       if(strncmp(x,s,10) != 0)
+       {
+               printf("File %s verification failed at %d\n",fn,i);
+               errCount++;
+       }
+   }
+   if(errCount >= 10)
+       printf("Too many errors... aborted\n");
+
+   yaffs_close(h1);
+
+}
+
+
+void check_resize_gc_bug(const char *mountpt)
+{
+
+       char a[30];
+       char b[30];
+       char c[30];
+
+       int i;
+
+       sprintf(a,"%s/a",mountpt);
+       sprintf(b,"%s/b",mountpt);
+       sprintf(c,"%s/c",mountpt);
+
+
+
+
+       yaffs_start_up();
+       yaffs_mount(mountpt);
+       yaffs_unlink(a);
+       yaffs_unlink(b);
+
+       for(i = 0; i < 50; i++)
+       {
+          printf("A\n");write_200k_file(a,"",c);
+          printf("B\n");verify_200k_file(a);
+          printf("C\n");write_200k_file(b,a,c);
+          printf("D\n");verify_200k_file(b);
+          yaffs_unmount(mountpt);
+          yaffs_mount(mountpt);
+          printf("E\n");verify_200k_file(a);
+          printf("F\n");verify_200k_file(b);
+       }
+
+}
+
+
+void multi_mount_test(const char *mountpt,int nmounts)
+{
+
+       char a[30];
+
+       int i;
+       int j;
+
+       sprintf(a,"%s/a",mountpt);
+
+       yaffs_start_up();
+
+       for(i = 0; i < nmounts; i++){
+               int h0;
+               int h1;
+               int len0;
+               int len1;
+
+               static char xx[1000];
+
+               printf("############### Iteration %d   Start\n",i);
+               if(1 || i == 0 || i == 5)
+                       yaffs_mount(mountpt);
+
+               dump_directory_tree(mountpt);
+
+
+               yaffs_mkdir(a,0);
+
+               sprintf(xx,"%s/0",a);
+               h0 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
+
+               sprintf(xx,"%s/1",a);
+               h1 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
+
+#if 0
+               for(j = 0; j < 200; j++){
+                  yaffs_write(h0,xx,1000);
+                  yaffs_write(h1,xx,1000);
+               }
+#else
+               while(yaffs_write(h0,xx,1000) > 0){
+
+                  yaffs_write(h1,xx,1000);
+               }
+#endif
+               len0 = yaffs_lseek(h0,0,SEEK_END);
+               len1 = yaffs_lseek(h1,0,SEEK_END);
+
+               yaffs_lseek(h0,0,SEEK_SET);
+               yaffs_lseek(h1,0,SEEK_SET);
+
+               for(j = 0; j < 200; j++){
+                  yaffs_read(h0,xx,1000);
+                  yaffs_read(h1,xx,1000);
+               }
+
+
+       //      yaffs_truncate(h0,0);
+               yaffs_close(h0);
+               yaffs_close(h1);
+
+               printf("########### %d\n",i);
+               dump_directory_tree(mountpt);
+
+               if(1 || i == 4 || i == nmounts -1)
+                       yaffs_unmount(mountpt);
+       }
+}
+
+
+void small_mount_test(const char *mountpt,int nmounts)
+{
+
+       char a[30];
+
+       int i;
+       int j;
+
+       int h0;
+       int h1;
+       int len0;
+       int len1;
+       int nread;
+
+       sprintf(a,"%s/a",mountpt);
+
+       yaffs_start_up();
+
+
+
+       for(i = 0; i < nmounts; i++){
+
+               static char xx[1000];
+
+               printf("############### Iteration %d   Start\n",i);
+               if(1 || i == 0 || i == 5)
+                       yaffs_mount(mountpt);
+
+               dump_directory_tree(mountpt);
+
+               yaffs_mkdir(a,0);
+
+               sprintf(xx,"%s/0",a);
+               if(i ==0){
+
+                       h0 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
+                       for(j = 0; j < 130; j++)
+                               yaffs_write(h0,xx,1000);
+                       yaffs_close(h0);
+               }
+
+               h0 = yaffs_open(xx,O_RDONLY,0);
+
+               sprintf(xx,"%s/1",a);
+               h1 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
+
+               while((nread = yaffs_read(h0,xx,1000)) > 0)
+                       yaffs_write(h1,xx,nread);
+
+
+               len0 = yaffs_lseek(h0,0,SEEK_END);
+               len1 = yaffs_lseek(h1,0,SEEK_END);
+
+               yaffs_lseek(h0,0,SEEK_SET);
+               yaffs_lseek(h1,0,SEEK_SET);
+
+               for(j = 0; j < 200; j++){
+                  yaffs_read(h0,xx,1000);
+                  yaffs_read(h1,xx,1000);
+               }
+
+               yaffs_close(h0);
+               yaffs_close(h1);
+
+               printf("########### %d\n",i);
+               dump_directory_tree(mountpt);
+
+               if(1 || i == 4 || i == nmounts -1)
+                       yaffs_unmount(mountpt);
+       }
+}
+
+
+int early_exit;
+
+void small_overwrite_test(const char *mountpt,int nmounts)
+{
+
+       char a[30];
+       int i;
+       int j;
+
+       int h0;
+       int h1;
+
+
+       sprintf(a,"%s/a",mountpt);
+
+       yaffs_start_up();
+
+
+
+       for(i = 0; i < nmounts; i++){
+
+               static char xx[8000];
+
+               printf("############### Iteration %d   Start\n",i);
+               if(1)
+                       yaffs_mount(mountpt);
+
+               dump_directory_tree(mountpt);
+
+               yaffs_mkdir(a,0);
+
+               sprintf(xx,"%s/0",a);
+               h0 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
+               sprintf(xx,"%s/1",a);
+               h1 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
+
+               for(j = 0; j < 1000000; j+=1000){
+                       yaffs_ftruncate(h0,j);
+                       yaffs_lseek(h0,j,SEEK_SET);
+                       yaffs_write(h0,xx,7000);
+                       yaffs_write(h1,xx,7000);
+
+                       if(early_exit)
+                               exit(0);
+               }
+
+               yaffs_close(h0);
+
+               printf("########### %d\n",i);
+               dump_directory_tree(mountpt);
+
+               if(1)
+                       yaffs_unmount(mountpt);
+       }
+}
+
+
+void seek_overwrite_test(const char *mountpt,int nmounts)
+{
+        static char xx[5000];
+       char a[30];
+
+       int i;
+       int j;
+
+       int h0;
+
+
+       sprintf(a,"%s/f",mountpt);
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+
+       for(i = 0; i < nmounts; i++){
+
+               h0 = yaffs_open(a, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
+
+               for(j = 0; j < 100000; j++){
+                       yaffs_lseek(h0,0,SEEK_SET);
+                       yaffs_write(h0,xx,5000);
+                       yaffs_lseek(h0,0x100000,SEEK_SET);
+                       yaffs_write(h0,xx,5000);
+
+                       if(early_exit)
+                               exit(0);
+               }
+
+               yaffs_close(h0);
+
+       }
+}
+
+
+void yaffs_touch(const char *fn)
+{
+       yaffs_chmod(fn, S_IREAD | S_IWRITE);
+}
+
+void checkpoint_fill_test(const char *mountpt,int nmounts)
+{
+
+       char a[50];
+       char b[50];
+       char c[50];
+
+       int i;
+       int j;
+       int h;
+
+       sprintf(a,"%s/a",mountpt);
+
+
+
+
+       yaffs_start_up();
+
+       for(i = 0; i < nmounts; i++){
+               printf("############### Iteration %d   Start\n",i);
+               yaffs_mount(mountpt);
+               dump_directory_tree(mountpt);
+               yaffs_mkdir(a,0);
+
+               sprintf(b,"%s/zz",a);
+
+               h = yaffs_open(b,O_CREAT | O_RDWR,S_IREAD |S_IWRITE);
+
+
+               while(yaffs_write(h,c,50) == 50){}
+
+               yaffs_close(h);
+
+               for(j = 0; j < 2; j++){
+                       printf("touch %d\n",j);
+                       yaffs_touch(b);
+                       yaffs_unmount(mountpt);
+                       yaffs_mount(mountpt);
+               }
+
+               dump_directory_tree(mountpt);
+               yaffs_unmount(mountpt);
+       }
+}
+
+
+int make_file2(const char *name1, const char *name2,int syz)
+{
+
+       char xx[2500];
+       int i;
+       int h1=-1,h2=-1;
+       int n = 1;
+
+
+       if(name1)
+               h1 = yaffs_open(name1,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+       if(name2)
+               h2 = yaffs_open(name2,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+
+       while(syz > 0 && n > 0){
+               i = (syz > 2500) ? 2500 : syz;
+               n = yaffs_write(h1,xx,i);
+               n = yaffs_write(h2,xx,i);
+               syz -= 500;
+       }
+       yaffs_close(h1);
+       yaffs_close(h2);
+       return 0;
+}
+
+
+extern void SetCheckpointReservedBlocks(int n);
+
+void checkpoint_upgrade_test(const char *mountpt,int nmounts)
+{
+
+       char a[50];
+       char b[50];
+       char c[50];
+       char d[50];
+
+       int j;
+
+       sprintf(a,"%s/a",mountpt);
+
+
+
+
+       printf("Create start condition\n");
+       yaffs_start_up();
+       yaffs_mount(mountpt);
+       yaffs_mkdir(a,0);
+       sprintf(b,"%s/zz",a);
+       sprintf(c,"%s/xx",a);
+       make_file2(b,c,2000000);
+       sprintf(d,"%s/aa",a);
+       make_file2(d,NULL,500000000);
+       dump_directory_tree(mountpt);
+
+       printf("Umount/mount attempt full\n");
+       yaffs_unmount(mountpt);
+
+       yaffs_mount(mountpt);
+
+       printf("unlink small file\n");
+       yaffs_unlink(c);
+       dump_directory_tree(mountpt);
+
+       printf("Umount/mount attempt\n");
+       yaffs_unmount(mountpt);
+       yaffs_mount(mountpt);
+
+       for(j = 0; j < 500; j++){
+               printf("***** touch %d\n",j);
+               dump_directory_tree(mountpt);
+               yaffs_touch(b);
+               yaffs_unmount(mountpt);
+               yaffs_mount(mountpt);
+       }
+
+       for(j = 0; j < 500; j++){
+               printf("***** touch %d\n",j);
+               dump_directory_tree(mountpt);
+               yaffs_touch(b);
+               yaffs_unmount(mountpt);
+               yaffs_mount(mountpt);
+       }
+}
+
+void huge_array_test(const char *mountpt,int n)
+{
+
+       char a[50];
+
+
+       int i;
+       int space;
+
+       int fnum;
+
+       sprintf(a,"mount point %s",mountpt);
+
+
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       while(n>0){
+               n--;
+               fnum = 0;
+               printf("\n\n START run\n\n");
+               while((space = yaffs_freespace(mountpt)) > 25000000){
+                       sprintf(a,"%s/file%d",mountpt,fnum);
+                       fnum++;
+                       printf("create file %s, free space %d\n",a,space);
+                       create_file_of_size(a,10000000);
+                       printf("verifying file %s\n",a);
+                       verify_file_of_size(a,10000000);
+               }
+
+               printf("\n\n verification/deletion\n\n");
+
+               for(i = 0; i < fnum; i++){
+                       sprintf(a,"%s/file%d",mountpt,i);
+                       printf("verifying file %s\n",a);
+                       verify_file_of_size(a,10000000);
+                       printf("deleting file %s\n",a);
+                       yaffs_unlink(a);
+               }
+               printf("\n\n done \n\n");
+
+
+       }
+}
+
+
+void random_write(int h)
+{
+       static char buffer[12000];
+       int n;
+
+       n = random() & 0x1FFF;
+       yaffs_write(h,buffer,n);
+}
+
+void random_seek(int h)
+{
+       int n;
+       n = random() & 0xFFFFF;
+       yaffs_lseek(h,n,SEEK_SET);
+}
+
+void random_truncate(int h, char * name)
+{
+       int n;
+       int flen;
+       n = random() & 0xFFFFF;
+       flen = yaffs_lseek(h,0,SEEK_END);
+       if(n > flen)
+               n = flen / 2;
+       yaffs_ftruncate(h,n);
+       yaffs_lseek(h,n,SEEK_SET);
+}
+
+
+#define NSMALLFILES 10
+void random_small_file_test(const char *mountpt,int iterations)
+{
+
+       char a[NSMALLFILES][50];
+
+
+       int i;
+       int n;
+       int h[NSMALLFILES];
+       int r;
+
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       for(i = 0; i < NSMALLFILES; i++){
+               h[i]=-1;
+               strcpy(a[i],"");
+       }
+
+       for(n = 0; n < iterations; n++){
+
+               for(i = 0; i < NSMALLFILES; i++) {
+                       r = random();
+
+                       if(strlen(a[i]) == 0){
+                               sprintf(a[i],"%s/%dx%d",mountpt,n,i);
+                               h[i] = yaffs_open(a[i],O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
+                       }
+
+                       if(h[i] < -1)
+                               printf("Could not open yaffs file %d %d error %d\n",n,i,h[i]);
+                       else {
+                               r = r & 7;
+                               switch(r){
+                                       case 0:
+                                       case 1:
+                                       case 2:
+                                               random_write(h[i]);
+                                               break;
+                                       case 3:
+                                               random_truncate(h[i],a[i]);
+                                               break;
+                                       case 4:
+                                       case 5: random_seek(h[i]);
+                                               break;
+                                       case 6:
+                                               yaffs_close(h[i]);
+                                               h[i] = -1;
+                                               break;
+                                       case 7:
+                                               yaffs_close(h[i]);
+                                               yaffs_unlink(a[i]);
+                                               strcpy(a[i],"");
+                                               h[i] = -1;
+                               }
+                       }
+               }
+
+       }
+
+       for(i = 0; i < NSMALLFILES; i++)
+               yaffs_close(h[i]);
+
+       yaffs_unmount(mountpt);
+}
+
+void rmdir_test(const char *mountpt)
+{
+       char name[100];
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       strcpy(name,mountpt);
+       strcat(name,"/");
+       strcat(name,"hello");
+       yaffs_mkdir(name,0666);
+       yaffs_rmdir(name);
+       yaffs_unmount(mountpt);
+}
+
+
+
+static void print_xattrib_val(const char *path, const char *name)
+{
+       char buffer[1000];
+       int n;
+
+       n = yaffs_getxattr(path,name,buffer,sizeof(buffer));
+       if(n >= 0){
+               u8 *b = (u8 *)buffer;
+
+               printf("%d bytes:",n);
+               if(n > 10)
+                       n = 10;
+               while(n > 0){
+                       printf("[%02X]",*b);
+                       b++;
+                       n--;
+               }
+               printf("\n");
+       } else
+               printf(" Novalue result %d\n",n);
+}
+
+static void list_xattr(const char *path)
+{
+       char list[1000];
+       int n=0;
+       int list_len;
+       int len;
+
+       list_len = yaffs_listxattr(path,list,sizeof(list));
+       printf("xattribs for %s, result is %d\n",path,list_len);
+       while(n < list_len){
+               len = strlen(list + n);
+               printf("\"%s\" value ",list+n);
+               print_xattrib_val(path,list + n);
+               n += (len + 1);
+       }
+       printf("end\n");
+}
+
+void basic_utime_test(const char *mountpt)
+{
+       char name[100];
+       int h;
+       int result;
+       int val1;
+       struct yaffs_utimbuf utb;
+       struct yaffs_stat st;
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       strcpy(name,mountpt);
+       strcat(name,"/");
+       strcat(name,"xfile");
+
+       yaffs_unlink(name);
+
+       printf("created\n");
+       h = yaffs_open(name,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+
+       yaffs_fstat(h,&st); printf(" times %u %u %u\n",st.yst_atime, st.yst_ctime, st.yst_mtime);
+
+       utb.actime = 1000;
+       utb.modtime = 2000;
+       result = yaffs_futime(h,&utb);
+       printf("futime to a 1000 m 2000 result %d\n",result);
+       yaffs_fstat(h,&st); printf(" times %u %u %u\n",st.yst_atime, st.yst_ctime, st.yst_mtime);
+
+
+       utb.actime = 5000;
+       utb.modtime = 8000;
+       result = yaffs_utime(name, &utb);
+       printf("utime to a 5000 m 8000 result %d\n",result);
+       yaffs_fstat(h,&st); printf(" times %u %u %u\n",st.yst_atime, st.yst_ctime, st.yst_mtime);
+
+       result = yaffs_utime(name, NULL);
+       printf("utime to NULL result %d\n",result);
+       yaffs_fstat(h,&st); printf(" times %u %u %u\n",st.yst_atime, st.yst_ctime, st.yst_mtime);
+
+
+}
+
+void basic_xattr_test(const char *mountpt)
+{
+       char name[100];
+       int h;
+       int result;
+       int val1;
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       strcpy(name,mountpt);
+       strcat(name,"/");
+       strcat(name,"xfile");
+
+       yaffs_unlink(name);
+       h = yaffs_open(name,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+       yaffs_close(h);
+
+       printf("Start\n");
+       list_xattr(name);
+
+       printf("Add an attribute\n");
+       val1 = 0x123456;
+       result = yaffs_setxattr(name,"foo",&val1,sizeof(val1),0);
+       printf("wrote attribute foo: result %d\n",result);
+       list_xattr(name);
+       printf("Add an attribute\n");
+       val1 = 0x7890;
+       result = yaffs_setxattr(name,"bar",&val1,sizeof(val1),0);
+       printf("wrote attribute bar: result %d\n",result);
+       list_xattr(name);
+
+       printf("Get non-existanrt attribute\n");
+       print_xattrib_val(name,"not here");
+
+       printf("Delete non existing attribute\n");
+       yaffs_removexattr(name,"not here");
+       list_xattr(name);
+
+       printf("Remove foo\n");
+       yaffs_removexattr(name,"foo");
+       list_xattr(name);
+
+       printf("Remove bar\n");
+       yaffs_removexattr(name,"bar");
+       list_xattr(name);
+
+}
+
+void big_xattr_test(const char *mountpt)
+{
+       char name[100];
+       int h;
+       int result;
+       char val[1000];
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       strcpy(name,mountpt);
+       strcat(name,"/");
+       strcat(name,"xfile");
+
+       yaffs_unlink(name);
+       h = yaffs_open(name,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+       yaffs_close(h);
+
+       printf("Start\n");
+       list_xattr(name);
+
+       printf("Add a large  attribute\n");
+       memset(val,0x1,sizeof(val));
+       result = yaffs_setxattr(name,"aaa",val,200,0);
+       printf("wrote attribute aaa: result %d\n",result);
+       list_xattr(name);
+
+       printf("Add a large  attribute\n");
+       memset(val,0x2,sizeof(val));
+       result = yaffs_setxattr(name,"bbb",val,1000,0);
+       printf("wrote attribute bbb: result %d\n",result);
+       list_xattr(name);
+
+       printf("Replace attribute\n");
+       memset(val,0x3,sizeof(val));
+       result = yaffs_setxattr(name,"aaa",val,1000,0);
+       printf("wrote attribute aaa: result %d\n",result);
+       list_xattr(name);
+
+}
+
+
+void dump_dev_stats(struct yaffs_dev *dev, const char * str)
+{
+       printf("%s\n",str);
+       printf( "space free %d erased %d "
+               "nand reads %d writes %d erases %d "
+               "gc all %d passive %d oldestdirty %d blocks %d copies %d \n",
+               dev->n_free_chunks, dev->n_erased_blocks * dev->param.chunks_per_block,
+               dev->n_page_reads, dev->n_page_writes, dev->n_erasures,
+               dev->all_gcs, dev->passive_gc_count, dev->oldest_dirty_gc_count, dev->n_gc_blocks, dev->n_gc_copies);
+}
+
+void test_flash_traffic(const char *mountpt)
+{
+       char name0[100];
+       char name1[100];
+       int i;
+       struct yaffs_dev *dev;
+
+       yaffs_trace_mask = 0;
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       dev = yaffs_getdev(mountpt);
+
+       strcpy(name0,mountpt);
+       strcat(name0,"/x");
+
+       strcpy(name1,mountpt);
+       strcat(name1,"/y");
+
+       dump_dev_stats(dev,"start");
+       create_file_of_size(name0,32 * 1024 * 1024);
+       dump_dev_stats(dev,"32MB written");
+       for(i = 0; i < 20; i++)
+               create_file_of_size(name1,1024 * 1024);
+       dump_dev_stats(dev,"20x 1MB files written");
+
+}
+
+void link_follow_test(const char *mountpt)
+{
+       char fn[100];
+       char sn[100];
+       char hn[100];
+       int result;
+       int h;
+
+       yaffs_trace_mask = 0;
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       sprintf(fn,"%s/file",mountpt);
+       sprintf(sn,"%s/sym",mountpt);
+       sprintf(hn,"%s/hl-sym",mountpt);
+
+       h = yaffs_open(fn,O_CREAT| O_RDWR, S_IREAD | S_IWRITE);
+       result = yaffs_close(h);
+
+       result = yaffs_symlink(fn,sn);
+       result = yaffs_link(sn,hn);
+
+       h =yaffs_open(hn,O_RDWR,0);
+
+}
+
+void max_files_test(const char *mountpt)
+{
+       char fn[100];
+       char sn[100];
+       char hn[100];
+       int result;
+       int h;
+       int i;
+
+       yaffs_trace_mask = 0;
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       for(i = 0; i < 5000; i++) {
+               sprintf(fn,"%s/file%d", mountpt, i);
+               yaffs_unlink(fn);
+               h = yaffs_open(fn,O_CREAT| O_RDWR, S_IREAD | S_IWRITE);
+               if(h < 0)
+                       printf("File %s not created\n", fn);
+               yaffs_write(h,fn,100);
+               result = yaffs_close(h);
+       }
+       for(i = 0; i < 5; i++){
+               sprintf(fn,"%s/file%d",mountpt, i);
+               yaffs_unlink(fn);
+       }
+
+       for(i = 1000; i < 1010; i++){
+               sprintf(fn,"%s/file%d",mountpt, i);
+               h = yaffs_open(fn,O_CREAT| O_RDWR, S_IREAD | S_IWRITE);
+               yaffs_write(h,fn,100);
+               if(h < 0)
+                       printf("File %s not created\n", fn);
+               result = yaffs_close(h);
+       }
+
+       yaffs_unmount(mountpt);
+
+       //h =yaffs_open(hn,O_RDWR,0);
+
+}
+void case_insensitive_test(const char *mountpt)
+{
+        char fn[100];
+        char fn2[100];
+        char buffer[100];
+        int ret;
+        struct yaffs_stat s;
+        int h;
+        char *x;
+
+       yaffs_trace_mask = 0;
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+       dump_directory_tree(mountpt);
+
+       sprintf(fn,"%s/Abc.Txt",mountpt);
+       yaffs_unlink(fn);
+       h = yaffs_open(fn, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
+
+       ret = yaffs_write(h,fn, strlen(fn) + 1);
+
+       ret = yaffs_close(h);
+
+       dump_directory_tree(mountpt);
+
+
+       strcpy(fn2, fn);
+       x = fn2;
+       while(*x) {
+               *x = toupper(*x);
+               x++;
+        }
+
+        h = yaffs_open(fn2, O_RDONLY, 0);
+        ret = yaffs_read(h, buffer, 100);
+
+        if (ret != strlen(fn) + 1 || memcmp(buffer, fn, ret)){
+               printf("wrong file read\n");
+        } else {
+               printf("File %s is the same as file %s\n", fn, fn2);
+        }
+
+        ret = yaffs_stat(fn2, &s);
+
+       printf("renaming\n");
+
+        ret = yaffs_rename(fn, fn2);
+       dump_directory_tree(mountpt);
+
+}
+
+void start_twice(const char *mountpt)
+{
+         printf("About to do first yaffs_start\n");
+         yaffs_start_up();
+         printf("started\n");
+         printf("First mount returns %d\n", yaffs_mount(mountpt));
+         printf("About to do second yaffs_start\n");
+         yaffs_start_up();
+         printf("started\n");
+         printf("Second mount returns %d\n", yaffs_mount(mountpt));
+}
+
+#define N_WRITES 2000
+#define STRIDE  2000
+
+#define BUFFER_N 1100
+unsigned  xxbuffer[BUFFER_N];
+
+
+void set_buffer(int n)
+{
+       int i;
+       for(i = 0; i < BUFFER_N; i++)
+               xxbuffer[i] = i + n;
+}
+
+void write_big_sparse_file(int h)
+{
+       int i;
+       loff_t offset = 0;
+       loff_t pos;
+       int n = sizeof(xxbuffer);
+       int wrote;
+
+       for(i = 0; i < N_WRITES; i++) {
+               printf("writing at %lld\n", offset);
+               set_buffer(i);
+               pos = yaffs_lseek(h, offset, SEEK_SET);
+               if(pos != offset) {
+                       printf("mismatched seek pos %lld offset %lld\n",
+                               pos, offset);
+                       perror("lseek64");
+                       exit(1);
+               }
+               wrote = yaffs_write(h, xxbuffer, n);
+
+               if(wrote != n) {
+                       printf("mismatched write wrote %d n %d\n", wrote, n);
+                       exit(1);
+               }
+
+               offset += (STRIDE * sizeof(xxbuffer));
+       }
+
+       yaffs_ftruncate(h, offset);
+
+}
+
+
+
+
+void verify_big_sparse_file(int h)
+{
+       unsigned check_buffer[BUFFER_N];
+       int i;
+       loff_t offset = 0;
+       loff_t pos;
+       int n = sizeof(check_buffer);
+       int result;
+       const char * check_type;
+       int checks_failed = 0;
+       int checks_passed = 0;
+
+       for(i = 0; i < N_WRITES * STRIDE; i++) {
+               if(i % STRIDE) {
+                       check_type = "zero";
+                       memset(xxbuffer,0, n);
+               } else {
+                       check_type = "buffer";
+                       set_buffer(i/STRIDE);
+               }
+               //printf("%s checking %lld\n", check_type, offset);
+               pos = yaffs_lseek(h, offset, SEEK_SET);
+               if(pos != offset) {
+                       printf("mismatched seek pos %lld offset %lld\n",
+                               pos, offset);
+                       perror("lseek64");
+                       exit(1);
+               }
+               result = yaffs_read(h, check_buffer, n);
+
+               if(result != n) {
+                       printf("mismatched read result %d n %d\n", result, n);
+                       exit(1);
+               }
+
+
+
+
+               if(memcmp(xxbuffer, check_buffer, n)) {
+                       int j;
+
+                       printf("buffer at %lld mismatches\n", pos);
+                       printf("xxbuffer ");
+                       for(j = 0; j < 20; j++)
+                               printf(" %d",xxbuffer[j]);
+                       printf("\n");
+                       printf("check_buffer ");
+                       for(j = 0; j < 20; j++)
+                               printf(" %d",check_buffer[j]);
+                       printf("\n");
+
+                       checks_failed++;
+               } else {
+                       checks_passed++;
+               }
+
+               offset += sizeof(xxbuffer);
+       }
+
+       printf("%d checks passed, %d checks failed\n", checks_passed, checks_failed);
+
+}
+
+
+void large_file_test(const char *mountpt)
+{
+       char xx_buffer[1000];
+       int i;
+       int handle;
+       char fullname[100];
+       loff_t file_end;
+
+       yaffs_trace_mask = 0;
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+       printf("mounted\n");
+        dumpDir(mountpt);
+
+       sprintf(fullname, "%s/%s", mountpt, "big-test-file");
+
+       handle = yaffs_open(fullname, O_RDONLY, 0);
+
+       handle = yaffs_open(fullname, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
+
+       if(handle < 0) {
+               perror("opening file");
+               exit(1);
+       }
+
+       write_big_sparse_file(handle);
+       verify_big_sparse_file(handle);
+
+       yaffs_close(handle);
+
+       printf("Job done\n");
+       yaffs_unmount(mountpt);
+
+       yaffs_mount(mountpt);
+       printf("mounted again\n");
+        dumpDir(mountpt);
+       handle = yaffs_open(fullname, O_RDONLY, 0);
+       verify_big_sparse_file(handle);
+       yaffs_unmount(mountpt);
+
+
+       yaffs_mount_common(mountpt, 0, 1);
+       printf("mounted with no checkpt\n");
+        dumpDir(mountpt);
+       handle = yaffs_open(fullname, O_RDONLY, 0);
+       verify_big_sparse_file(handle);
+       yaffs_unmount(mountpt);
+
+       /* Check resize by adding to the end, resizing back and verifying. */
+       yaffs_mount_common(mountpt, 0, 1);
+       printf("checking resize\n");
+        dumpDir(mountpt);
+       handle = yaffs_open(fullname, O_RDWR, 0);
+
+       file_end = yaffs_lseek(handle, 0, SEEK_END);
+       printf("file_end %lld\n", file_end);
+       for(i = 0; i < 10000; i++)
+               yaffs_write(handle, xx_buffer, sizeof(xx_buffer));
+       yaffs_ftruncate(handle, file_end);
+
+       verify_big_sparse_file(handle);
+       yaffs_unmount(mountpt);
+
+}
+
+
+void readdir_test(const char *mountpt)
+{
+       char xx_buffer[1000];
+       int i;
+       int handle;
+       char fullname[100];
+
+       yaffs_DIR *dirs[100];
+
+
+       yaffs_trace_mask = 0;
+
+       yaffs_start_up();
+
+       yaffs_mount(mountpt);
+
+       for(i = 0; i < 100; i++) {
+                dirs[i] = yaffs_opendir(mountpt);
+                printf("%2d %p,", i, dirs[i]);
+       }
+
+       printf("\n");
+
+       for(i = 0; i < 100; i++) {
+                if(dirs[i])
+                         yaffs_closedir(dirs[i]);
+       }
+
+
+       for(i = 0; i < 100; i++) {
+                dirs[i] = yaffs_opendir(mountpt);
+                printf("%2d %p,", i, dirs[i]);
+       }
+
+       yaffs_unmount(mountpt);
+
+
+}
+
+
+int random_seed;
+int simulate_power_failure;
+
+int main(int argc, char *argv[])
+{
+       random_seed = time(NULL);
+       //return long_test(argc,argv);
+
+       //return cache_read_test();
+
+       // resize_stress_test_no_grow("/flash/flash",20);
+       //root_perm_remount("/flash/flash");
+
+       //huge_directory_test_on_path("/ram2k");
+
+        //yaffs_backward_scan_test("/flash/flash");
+       // yaffs_device_flush_test("/flash/flash");
+
+       //rename_over_test("//////////////////flash///////////////////yaffs1///////////");
+
+       //fill_empty_files_test("/yaffs2/");
+       //resize_stress_test("/yaffs2");
+       //overwrite_test("/yaffs2");
+
+       //long_name_test("/yaffs2");
+       //link_test0("/yaffs2");
+       //link_test1("yaffs2");
+        //scan_pattern_test("/flash",10000,10);
+       //short_scan_test("/flash/flash",40000,200);
+         //small_mount_test("/flash/flash",1000);
+         //small_overwrite_test("/flash/flash",1000);
+         //seek_overwrite_test("/flash/flash",1000);
+        //checkpoint_fill_test("/flash/flash",20);
+        //checkpoint_upgrade_test("/flash/flash",20);
+         //small_overwrite_test("/flash/flash",1000);
+         //checkpoint_fill_test("/flash/flash",20);
+       //random_small_file_test("/flash/flash",10000);
+        // huge_array_test("/flash/flash",10);
+
+
+       // handle_test("yaffs2/");
+
+       //long_test_on_path("/ram2k");
+       // long_test_on_path("/flash");
+       //simple_rw_test("/flash/flash");
+       //fill_disk_test("/flash/flash");
+       // rename_over_test("/flash");
+       //lookup_test("/flash");
+       //freespace_test("/flash/flash");
+
+       //link_test("/flash/flash");
+
+       // cache_bypass_bug_test();
+
+        //free_space_check();
+
+        //check_resize_gc_bug("/flash");
+
+        //basic_xattr_test("/yaffs2");
+        //big_xattr_test("/yaffs2");
+
+        //null_name_test("yaffs2");
+
+        //test_flash_traffic("yaffs2");
+        // link_follow_test("/yaffs2");
+        //basic_utime_test("/yaffs2");
+
+       max_files_test("/yaffs2");
+
+        //start_twice("/yaffs2");
+
+        //large_file_test("/yaffs2");
+        //readdir_test("/yaffs2");
+
+        //basic_utime_test("/yaffs2");
+        //case_insensitive_test("/yaffs2");
+
+        return 0;
+
+}