2 * YAFFS: Yet another FFS. A NAND-flash specific file system.
4 * Copyright (C) 2002 Aleph One Ltd.
5 * for Toby Churchill Ltd and Brightstar Engineering
7 * Created by Charles Manning <charles@aleph1.co.uk>
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.
26 void dumpDir(const char *dname);
30 void copy_in_a_file(char *yaffsName,char *inName)
33 unsigned char buffer[100];
35 inh = open(inName,O_RDONLY);
36 outh = yaffs_open(yaffsName, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
38 while((ni = read(inh,buffer,100)) > 0)
40 no = yaffs_write(outh,buffer,ni);
43 printf("problem writing yaffs file\n");
52 void make_a_file(char *yaffsName,char bval,int sizeOfFile)
56 unsigned char buffer[100];
58 outh = yaffs_open(yaffsName, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
60 memset(buffer,bval,100);
67 yaffs_write(outh,buffer,i);
69 } while (sizeOfFile > 0);
76 void make_pattern_file(char *fn,int size)
81 outh = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
82 yaffs_lseek(outh,size-1,SEEK_SET);
83 yaffs_write(outh,"A",1);
85 for(i = 0; i < size; i+=256)
88 yaffs_lseek(outh,i,SEEK_SET);
89 yaffs_write(outh,&marker,sizeof(marker));
95 int check_pattern_file(char *fn)
103 h = yaffs_open(fn, O_RDWR,0);
104 size = yaffs_lseek(h,0,SEEK_END);
106 for(i = 0; i < size; i+=256)
108 yaffs_lseek(h,i,SEEK_SET);
109 yaffs_read(h,&marker,sizeof(marker));
113 printf("pattern check failed on file %s, size %d at position %d. Got %x instead of %x\n",
114 fn,size,i,marker,~i);
125 int dump_file_data(char *fn)
132 h = yaffs_open(fn, O_RDWR,0);
136 while(yaffs_read(h,&b,1)> 0)
153 void dump_file(const char *fn)
159 h = yaffs_open(fn,O_RDONLY,0);
162 printf("*****\nDump file %s does not exist\n",fn);
166 size = yaffs_lseek(h,0,SEEK_SET);
167 printf("*****\nDump file %s size %d\n",fn,size);
168 for(i = 0; i < size; i++)
175 void create_file_of_size(const char *fn,int syze)
183 int iterations = (syze + strlen(fn) -1)/ strlen(fn);
185 h = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
187 while (iterations > 0)
189 sprintf(xx,"%s %8d",fn,iterations);
191 result = yaffs_write(h,xx,n);
193 printf("Wrote %d, should have been %d\n",result,n);
199 void verify_file_of_size(const char *fn,int syze)
208 int iterations = (syze + strlen(fn) -1)/ strlen(fn);
210 h = yaffs_open(fn, O_RDONLY, S_IREAD | S_IWRITE);
212 while (iterations > 0)
214 sprintf(xx,"%s %8d",fn,iterations);
217 result = yaffs_read(h,yy,l);
221 printf("=====>>>>> verification of file %s failed near position %lld\n",fn,(long long)yaffs_lseek(h,0,SEEK_CUR));
228 void create_resized_file_of_size(const char *fn,int syze1,int reSyze, int syze2)
234 h = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
236 iterations = (syze1 + strlen(fn) -1)/ strlen(fn);
237 while (iterations > 0)
239 yaffs_write(h,fn,strlen(fn));
243 yaffs_ftruncate(h,reSyze);
245 yaffs_lseek(h,0,SEEK_SET);
246 iterations = (syze2 + strlen(fn) -1)/ strlen(fn);
247 while (iterations > 0)
249 yaffs_write(h,fn,strlen(fn));
257 void do_some_file_stuff(const char *path)
262 sprintf(fn,"%s/%s",path,"f1");
263 create_file_of_size(fn,10000);
265 sprintf(fn,"%s/%s",path,"fdel");
266 create_file_of_size(fn,10000);
269 sprintf(fn,"%s/%s",path,"f2");
271 create_resized_file_of_size(fn,10000,3000,4000);
274 void yaffs_backward_scan_test(const char *path)
282 do_some_file_stuff(path);
284 sprintf(fn,"%s/ddd",path);
288 do_some_file_stuff(fn);
298 void yaffs_device_flush_test(const char *path)
308 do_some_file_stuff(path);
310 // Open and add some data to a few files
311 for(i = 0; i < 10; i++) {
313 sprintf(fn,"%s/ff%d",path,i);
315 h = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IWRITE | S_IREAD);
316 yaffs_write(h,xxzz,2000);
317 yaffs_write(h,xxzz,2000);
326 void short_scan_test(const char *path, int fsize, int niterations)
331 sprintf(fn,"%s/%s",path,"f1");
334 for(i = 0; i < niterations; i++)
336 printf("\n*****************\nIteration %d\n",i);
338 printf("\nmount: Directory look-up of %s\n",path);
340 make_a_file(fn,1,fsize);
347 void scan_pattern_test(const char *path, int fsize, int niterations)
354 sprintf(fn[0],"%s/%s",path,"f0");
355 sprintf(fn[1],"%s/%s",path,"f1");
356 sprintf(fn[2],"%s/%s",path,"f2");
360 for(i = 0; i < niterations; i++)
362 printf("\n*****************\nIteration %d\n",i);
364 printf("\nmount: Directory look-up of %s\n",path);
366 for(j = 0; j < 3; j++)
368 result = dump_file_data(fn[j]);
369 result = check_pattern_file(fn[j]);
370 make_pattern_file(fn[j],fsize);
371 result = dump_file_data(fn[j]);
372 result = check_pattern_file(fn[j]);
378 void fill_disk(const char *path,int nfiles)
387 for(n = 0; n < nfiles; n++)
389 sprintf(str,"%s/%d",path,n);
391 h = yaffs_open(str, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
393 printf("writing file %s handle %d ",str, h);
395 while ((result = yaffs_write(h,xx,600)) == 600)
397 f = yaffs_freespace(path);
399 result = yaffs_close(h);
400 printf(" close %d\n",result);
404 void fill_disk_and_delete(const char *path, int nfiles, int ncycles)
410 for(i = 0; i < ncycles; i++)
412 printf("@@@@@@@@@@@@@@ cycle %d\n",i);
413 fill_disk(path,nfiles);
415 for(j = 0; j < nfiles; j++)
417 sprintf(str,"%s/%d",path,j);
418 result = yaffs_unlink(str);
419 printf("unlinking file %s, result %d\n",str,result);
425 void fill_files(char *path,int flags, int maxIterations,int siz)
435 sprintf(str,"%s/%d",path,i);
436 h = yaffs_open(str, O_CREAT | O_TRUNC | O_RDWR,S_IREAD | S_IWRITE);
441 for(j = 0; j < siz; j++)
443 yaffs_write(h,str,1);
452 } while(h >= 0 && i < maxIterations);
458 sprintf(str,"%s/%d",path,i);
459 printf("unlink %s\n",str);
461 } while(yaffs_unlink(str) >= 0);
465 void leave_unlinked_file(char *path,int maxIterations,int siz)
474 sprintf(str,"%s/%d",path,i);
475 printf("create %s\n",str);
476 h = yaffs_open(str, O_CREAT | O_TRUNC | O_RDWR,S_IREAD | S_IWRITE);
482 } while(h < 0 && i < maxIterations);
486 for(i = 0; i < siz; i++)
488 yaffs_write(h,str,1);
492 printf("Leaving file %s open\n",str);
496 void dumpDirFollow(const char *dname)
503 d = yaffs_opendir(dname);
507 printf("opendir failed\n");
511 while((de = yaffs_readdir(d)) != NULL)
513 sprintf(str,"%s/%s",dname,de->d_name);
517 printf("%s ino %d length %d mode %X ",de->d_name,(int)s.st_ino,(int)s.st_size,s.st_mode);
518 switch(s.st_mode & S_IFMT)
520 case S_IFREG: printf("data file"); break;
521 case S_IFDIR: printf("directory"); break;
522 case S_IFLNK: printf("symlink -->");
523 if(yaffs_readlink(str,str,100) < 0)
526 printf("\"%s\"",str);
528 default: printf("unknown"); break;
538 printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
543 void dump_directory_tree_worker(const char *dname,int recursive)
550 d = yaffs_opendir(dname);
554 printf("opendir failed\n");
558 while((de = yaffs_readdir(d)) != NULL)
560 sprintf(str,"%s/%s",dname,de->d_name);
564 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);
565 switch(s.st_mode & S_IFMT)
567 case S_IFREG: printf("data file"); break;
568 case S_IFDIR: printf("directory"); break;
569 case S_IFLNK: printf("symlink -->");
570 if(yaffs_readlink(str,str,100) < 0)
573 printf("\"%s\"",str);
575 default: printf("unknown"); break;
580 if((s.st_mode & S_IFMT) == S_IFDIR && recursive)
581 dump_directory_tree_worker(str,1);
590 static void dump_directory_tree(const char *dname)
592 dump_directory_tree_worker(dname,1);
594 printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
597 void dumpDir(const char *dname)
598 { dump_directory_tree_worker(dname,0);
600 printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
604 static void PermissionsCheck(const char *path, mode_t tmode, int tflags,int expectedResult)
608 if(yaffs_chmod(path,tmode)< 0) printf("chmod failed\n");
610 fd = yaffs_open(path,tflags,0);
612 if((fd >= 0) != (expectedResult > 0))
614 printf("Permissions check %x %x %d failed\n",tmode,tflags,expectedResult);
618 printf("Permissions check %x %x %d OK\n",tmode,tflags,expectedResult);
627 int long_test(int argc, char *argv[])
638 struct yaffs_stat ystat;
642 yaffs_mount("/boot");
643 yaffs_mount("/data");
644 yaffs_mount("/flash");
647 printf("\nDirectory look-up of /boot\n");
649 printf("\nDirectory look-up of /data\n");
651 printf("\nDirectory look-up of /flash\n");
654 //leave_unlinked_file("/flash",20000,0);
655 //leave_unlinked_file("/data",20000,0);
657 leave_unlinked_file("/ram",20,0);
660 f = yaffs_open("/boot/b1", O_RDONLY,0);
662 printf("open /boot/b1 readonly, f=%d\n",f);
664 f = yaffs_open("/boot/b1", O_CREAT,S_IREAD | S_IWRITE);
666 printf("open /boot/b1 O_CREAT, f=%d\n",f);
669 r = yaffs_write(f,"hello",1);
670 printf("write %d attempted to write to a read-only file\n",r);
674 printf("close %d\n",r);
676 f = yaffs_open("/boot/b1", O_RDWR,0);
678 printf("open /boot/b1 O_RDWR,f=%d\n",f);
681 r = yaffs_write(f,"hello",2);
682 printf("write %d attempted to write to a writeable file\n",r);
683 r = yaffs_write(f,"world",3);
684 printf("write %d attempted to write to a writeable file\n",r);
686 r= yaffs_lseek(f,0,SEEK_END);
687 printf("seek end %d\n",r);
689 r = yaffs_read(f,buffer,10);
690 printf("read %d \"%s\"\n",r,buffer);
691 r= yaffs_lseek(f,0,SEEK_SET);
692 printf("seek set %d\n",r);
694 r = yaffs_read(f,buffer,10);
695 printf("read %d \"%s\"\n",r,buffer);
697 r = yaffs_read(f,buffer,10);
698 printf("read %d \"%s\"\n",r,buffer);
700 // Check values reading at end.
701 // A read past end of file should return 0 for 0 bytes read.
703 r= yaffs_lseek(f,0,SEEK_END);
704 r = yaffs_read(f,buffer,10);
705 printf("read at end returned %d\n",r);
706 r= yaffs_lseek(f,500,SEEK_END);
707 r = yaffs_read(f,buffer,10);
708 printf("read past end returned %d\n",r);
712 printf("close %d\n",r);
714 copy_in_a_file("/boot/yyfile","xxx");
716 // Create a file with a long name
718 copy_in_a_file("/boot/file with a long name","xxx");
721 printf("\nDirectory look-up of /boot\n");
725 r = yaffs_stat("/boot/file with a long name",&ystat);
729 r = yaffs_rename("/boot/file with a long name","/boot/r1");
731 printf("\nDirectory look-up of /boot\n");
735 r = yaffs_unlink("/boot/r1");
737 printf("\nDirectory look-up of /boot\n");
742 r = yaffs_mkdir("/boot/directory1",0);
744 printf("\nDirectory look-up of /boot\n");
746 printf("\nDirectory look-up of /boot/directory1\n");
747 dumpDir("/boot/directory1");
749 // add a file to the directory
750 copy_in_a_file("/boot/directory1/file with a long name","xxx");
752 printf("\nDirectory look-up of /boot\n");
754 printf("\nDirectory look-up of /boot/directory1\n");
755 dumpDir("/boot/directory1");
757 // Attempt to delete directory (should fail)
759 r = yaffs_rmdir("/boot/directory1");
761 printf("\nDirectory look-up of /boot\n");
763 printf("\nDirectory look-up of /boot/directory1\n");
764 dumpDir("/boot/directory1");
766 // Delete file first, then rmdir should work
767 r = yaffs_unlink("/boot/directory1/file with a long name");
768 r = yaffs_rmdir("/boot/directory1");
771 printf("\nDirectory look-up of /boot\n");
773 printf("\nDirectory look-up of /boot/directory1\n");
774 dumpDir("/boot/directory1");
777 fill_disk_and_delete("/boot",20,20);
779 printf("\nDirectory look-up of /boot\n");
783 yaffs_symlink("yyfile","/boot/slink");
785 yaffs_readlink("/boot/slink",str,100);
786 printf("symlink alias is %s\n",str);
791 printf("\nDirectory look-up of /boot\n");
793 printf("\nDirectory look-up of /boot (using stat instead of lstat)\n");
794 dumpDirFollow("/boot");
795 printf("\nDirectory look-up of /boot/directory1\n");
796 dumpDir("/boot/directory1");
798 h = yaffs_open("/boot/slink",O_RDWR,0);
800 printf("file length is %d\n",(int)yaffs_lseek(h,0,SEEK_END));
804 yaffs_unlink("/boot/slink");
807 printf("\nDirectory look-up of /boot\n");
812 yaffs_stat("/boot/yyfile",&ystat);
813 temp_mode = ystat.st_mode;
815 yaffs_chmod("/boot/yyfile",0x55555);
816 printf("\nDirectory look-up of /boot\n");
819 yaffs_chmod("/boot/yyfile",temp_mode);
820 printf("\nDirectory look-up of /boot\n");
823 // Permission checks...
824 PermissionsCheck("/boot/yyfile",0, O_WRONLY,0);
825 PermissionsCheck("/boot/yyfile",0, O_RDONLY,0);
826 PermissionsCheck("/boot/yyfile",0, O_RDWR,0);
828 PermissionsCheck("/boot/yyfile",S_IREAD, O_WRONLY,0);
829 PermissionsCheck("/boot/yyfile",S_IREAD, O_RDONLY,1);
830 PermissionsCheck("/boot/yyfile",S_IREAD, O_RDWR,0);
832 PermissionsCheck("/boot/yyfile",S_IWRITE, O_WRONLY,1);
833 PermissionsCheck("/boot/yyfile",S_IWRITE, O_RDONLY,0);
834 PermissionsCheck("/boot/yyfile",S_IWRITE, O_RDWR,0);
836 PermissionsCheck("/boot/yyfile",S_IREAD | S_IWRITE, O_WRONLY,1);
837 PermissionsCheck("/boot/yyfile",S_IREAD | S_IWRITE, O_RDONLY,1);
838 PermissionsCheck("/boot/yyfile",S_IREAD | S_IWRITE, O_RDWR,1);
840 yaffs_chmod("/boot/yyfile",temp_mode);
842 //create a zero-length file and unlink it (test for scan bug)
844 h = yaffs_open("/boot/zlf",O_CREAT | O_TRUNC | O_RDWR,0);
847 yaffs_unlink("/boot/zlf");
850 yaffs_DumpDevStruct("/boot");
852 fill_disk_and_delete("/boot",20,20);
854 yaffs_DumpDevStruct("/boot");
856 fill_files("/boot",1,10000,0);
857 fill_files("/boot",1,10000,5000);
858 fill_files("/boot",2,10000,0);
859 fill_files("/boot",2,10000,5000);
861 leave_unlinked_file("/data",20000,0);
862 leave_unlinked_file("/data",20000,5000);
863 leave_unlinked_file("/data",20000,5000);
864 leave_unlinked_file("/data",20000,5000);
865 leave_unlinked_file("/data",20000,5000);
866 leave_unlinked_file("/data",20000,5000);
868 yaffs_DumpDevStruct("/boot");
869 yaffs_DumpDevStruct("/data");
877 int huge_directory_test_on_path(char *path)
897 // Create a large number of files
899 for(i = 0; i < 2000; i++)
901 sprintf(str,"%s/%d",path,i);
903 f = yaffs_open(str,O_CREAT,S_IREAD | S_IWRITE);
909 d = yaffs_opendir(path);
912 while((de = yaffs_readdir(d)) != NULL) {
913 if (total >lastTotal+100*9*1024||(i & 1023)==0){
914 printf("files = %d, total = %d\n",i, total);
918 sprintf(str,"%s/%s",path,de->d_name);
920 switch(s.st_mode & S_IFMT){
922 //printf("data file");
934 int yaffs_scan_test(const char *path)
940 void rename_over_test(const char *mountpt)
947 sprintf(a,"%s/a",mountpt);
948 sprintf(b,"%s/b",mountpt);
949 sprintf(c,"%s/c",mountpt);
953 yaffs_mount(mountpt);
955 printf("Existing files\n");
956 dumpDirFollow(mountpt);
960 i = yaffs_open(c,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
961 printf("File c handle is %d\n",i);
963 i = yaffs_open(a,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
965 i = yaffs_open(b,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
967 yaffs_rename(a,b); // rename over
968 yaffs_rename(b,a); // rename back again (not renaimng over)
969 yaffs_rename(a,b); // rename back again (not renaimng over)
972 yaffs_unmount(mountpt);
977 int resize_stress_test(const char *path)
992 sprintf(aname,"%s%s",path,"/a");
993 sprintf(bname,"%s%s",path,"/b");
995 memset(abuffer,'a',1000);
996 memset(bbuffer,'b',1000);
998 a = yaffs_open(aname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
999 b = yaffs_open(bname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1001 printf(" %s %d %s %d\n",aname,a,bname,b);
1005 for(j = 0; j < 100; j++)
1007 yaffs_lseek(a,0,SEEK_END);
1010 for(i = 0; i <20000; i++)
1012 //r = yaffs_lseek(b,i,SEEK_SET);
1013 //r = yaffs_write(b,bbuffer,1000);
1018 int syz = yaffs_lseek(a,0,SEEK_END);
1021 if(syz < 0) syz = 0;
1022 yaffs_ftruncate(a,syz);
1028 r = yaffs_lseek(a,i * 500,SEEK_SET);
1029 r = yaffs_write(a,abuffer,1000);
1040 int root_perm_remount(const char *path)
1042 struct yaffs_stat s;
1048 yaffs_stat(path,&s);
1049 printf("root perms after mount %x\n",s.st_mode);
1051 yaffs_chmod(path, 0777);
1053 yaffs_stat(path,&s);
1054 printf("root perms after setting to 0777 is %x\n",s.st_mode);
1056 yaffs_unmount(path);
1063 int resize_stress_test_no_grow_complex(const char *path,int iters)
1079 sprintf(aname,"%s%s",path,"/a");
1080 sprintf(bname,"%s%s",path,"/b");
1082 memset(abuffer,'a',1000);
1083 memset(bbuffer,'b',1000);
1085 a = yaffs_open(aname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1086 b = yaffs_open(bname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1088 printf(" %s %d %s %d\n",aname,a,bname,b);
1092 for(j = 0; j < iters; j++)
1094 yaffs_lseek(a,0,SEEK_END);
1097 for(i = 0; i <20000; i++)
1099 //r = yaffs_lseek(b,i,SEEK_SET);
1100 //r = yaffs_write(b,bbuffer,1000);
1105 int syz = yaffs_lseek(a,0,SEEK_END);
1111 if(syz < 0) syz = 0;
1112 yaffs_ftruncate(a,syz);
1113 syz = yaffs_lseek(a,0,SEEK_END);
1114 printf("shrink to %d\n",syz);
1122 r = yaffs_lseek(a,500,SEEK_END);
1123 r = yaffs_write(a,abuffer,1000);
1130 printf("file size is %lld\n",(long long)yaffs_lseek(a,0,SEEK_END));
1138 int resize_stress_test_no_grow(const char *path,int iters)
1153 sprintf(aname,"%s%s",path,"/a");
1154 sprintf(bname,"%s%s",path,"/b");
1156 memset(abuffer,'a',1000);
1157 memset(bbuffer,'b',1000);
1159 a = yaffs_open(aname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1160 b = yaffs_open(bname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1162 printf(" %s %d %s %d\n",aname,a,bname,b);
1166 for(j = 0; j < iters; j++)
1168 yaffs_lseek(a,0,SEEK_END);
1171 for(i = 0; i <20000; i++)
1173 //r = yaffs_lseek(b,i,SEEK_SET);
1174 //r = yaffs_write(b,bbuffer,1000);
1179 int syz = yaffs_lseek(a,0,SEEK_END);
1185 if(syz < 0) syz = 0;
1186 yaffs_ftruncate(a,syz);
1187 syz = yaffs_lseek(a,0,SEEK_END);
1188 printf("shrink to %d\n",syz);
1196 r = yaffs_lseek(a,-500,SEEK_END);
1197 r = yaffs_write(a,abuffer,1000);
1203 printf("file size is %lld\n",(long long)yaffs_lseek(a,0,SEEK_END));
1211 int directory_rename_test(void)
1216 yaffs_mount("/ram");
1217 yaffs_mkdir("/ram/a",0);
1218 yaffs_mkdir("/ram/a/b",0);
1219 yaffs_mkdir("/ram/c",0);
1221 printf("\nDirectory look-up of /ram\n");
1224 dumpDir("/ram/a/b");
1226 printf("Do rename (should fail)\n");
1228 r = yaffs_rename("/ram/a","/ram/a/b/d");
1229 printf("\nDirectory look-up of /ram\n");
1232 dumpDir("/ram/a/b");
1234 printf("Do rename (should not fail)\n");
1236 r = yaffs_rename("/ram/c","/ram/a/b/d");
1237 printf("\nDirectory look-up of /ram\n");
1240 dumpDir("/ram/a/b");
1247 int cache_read_test(void)
1251 int sizeOfFiles = 500000;
1256 yaffs_mount("/boot");
1258 make_a_file("/boot/a",'a',sizeOfFiles);
1259 make_a_file("/boot/b",'b',sizeOfFiles);
1261 a = yaffs_open("/boot/a",O_RDONLY,0);
1262 b = yaffs_open("/boot/b",O_RDONLY,0);
1263 c = yaffs_open("/boot/c", O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
1267 if (i > 100) i = 100;
1269 yaffs_read(a,buffer,i);
1270 yaffs_read(b,buffer,i);
1271 yaffs_write(c,buffer,i);
1272 } while(sizeOfFiles > 0);
1280 int cache_bypass_bug_test(void)
1282 // This test reporoduces a bug whereby YAFFS caching *was* buypassed
1283 // resulting in erroneous reads after writes.
1284 // This bug has been fixed.
1290 memset(buffer1,0,sizeof(buffer1));
1291 memset(buffer2,0,sizeof(buffer2));
1295 yaffs_mount("/boot");
1297 // Create a file of 2000 bytes.
1298 make_a_file("/boot/a",'X',2000);
1300 a = yaffs_open("/boot/a",O_RDWR, S_IREAD | S_IWRITE);
1302 // Write a short sequence to the file.
1303 // This will go into the cache.
1304 yaffs_lseek(a,0,SEEK_SET);
1305 yaffs_write(a,"abcdefghijklmnopqrstuvwxyz",20);
1307 // Read a short sequence from the file.
1308 // This will come from the cache.
1309 yaffs_lseek(a,0,SEEK_SET);
1310 yaffs_read(a,buffer1,30);
1312 // Read a page size sequence from the file.
1313 yaffs_lseek(a,0,SEEK_SET);
1314 yaffs_read(a,buffer2,512);
1316 printf("buffer 1 %s\n",buffer1);
1317 printf("buffer 2 %s\n",buffer2);
1319 if(strncmp(buffer1,buffer2,20))
1321 printf("Cache bypass bug detected!!!!!\n");
1329 int free_space_check(void)
1334 yaffs_mount("/boot");
1335 fill_disk("/boot/",2);
1336 f = yaffs_freespace("/boot");
1338 printf("%d free when disk full\n",f);
1342 int truncate_test(void)
1352 yaffs_mount("/boot");
1354 yaffs_unlink("/boot/trunctest");
1356 a = yaffs_open("/boot/trunctest", O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1358 yaffs_write(a,"abcdefghijklmnopqrstuvwzyz",26);
1360 yaffs_ftruncate(a,3);
1361 l= yaffs_lseek(a,0,SEEK_END);
1363 printf("truncated length is %d\n",l);
1365 yaffs_lseek(a,5,SEEK_SET);
1366 yaffs_write(a,"1",1);
1368 yaffs_lseek(a,0,SEEK_SET);
1370 r = yaffs_read(a,y,10);
1372 printf("read %d bytes:",r);
1374 for(i = 0; i < r; i++) printf("[%02X]",y[i]);
1386 void fill_disk_test(const char *mountpt)
1391 for(i = 0; i < 5; i++)
1393 yaffs_mount(mountpt);
1394 fill_disk_and_delete(mountpt,100,i+1);
1395 yaffs_unmount(mountpt);
1402 void lookup_test(const char *mountpt)
1414 yaffs_mount(mountpt);
1416 d = yaffs_opendir(mountpt);
1420 printf("opendir failed\n");
1425 for(i = 0; (de = yaffs_readdir(d)) != NULL; i++)
1427 printf("unlinking %s\n",de->d_name);
1428 yaffs_unlink(de->d_name);
1431 printf("%d files deleted\n",i);
1435 for(i = 0; i < 2000; i++){
1436 sprintf(a,"%s/%d",mountpt,i);
1437 h = yaffs_open(a,O_CREAT | O_TRUNC | O_RDWR, 0);
1442 for(i = 0; (de = yaffs_readdir(d)) != NULL; i++)
1444 printf("%d %s\n",i,de->d_name);
1447 printf("%d files listed\n\n\n",i);
1454 for(i = 0; i < 2000; i++){
1455 sprintf(a,"%s/%d",mountpt,i);
1460 yaffs_unmount(mountpt);
1464 void link_test(const char *mountpt)
1472 sprintf(a,"%s/aaa",mountpt);
1473 sprintf(b,"%s/bbb",mountpt);
1474 sprintf(c,"%s/ccc",mountpt);
1478 yaffs_mount(mountpt);
1481 h = yaffs_open(a, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1482 for(i = 0; i < 100; i++)
1483 yaffs_write(h,a,100);
1496 yaffs_unmount(mountpt);
1497 yaffs_mount(mountpt);
1499 printf("link test done\n");
1503 void freespace_test(const char *mountpt)
1513 sprintf(a,"%s/aaa",mountpt);
1517 yaffs_mount(mountpt);
1519 f0 = yaffs_freespace(mountpt);
1521 h = yaffs_open(a, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1523 for(i = 0; i < 100; i++)
1524 yaffs_write(h,a,100);
1528 f1 = yaffs_freespace(mountpt);
1532 f2 = yaffs_freespace(mountpt);
1535 yaffs_unmount(mountpt);
1536 yaffs_mount(mountpt);
1538 f3 = yaffs_freespace(mountpt);
1540 printf("%d\n%d\n%d\n%d\n",f0, f1,f2,f3);
1545 void simple_rw_test(const char *mountpt)
1554 sprintf(a,"%s/aaa",mountpt);
1558 yaffs_mount(mountpt);
1562 h = yaffs_open(a,O_CREAT| O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1564 for(i = 100000;i < 200000; i++){
1565 result = yaffs_write(h,&i,sizeof(i));
1569 printf("write error\n");
1576 // h = yaffs_open(a,O_RDWR, S_IREAD | S_IWRITE);
1579 yaffs_lseek(h,0,SEEK_SET);
1581 for(i = 100000; i < 200000; i++){
1582 result = yaffs_read(h,&x,sizeof(x));
1584 if(result != 4 || x != i){
1585 printf("read error %d %x %x\n",i,result,x);
1589 printf("Simple rw test passed\n");
1596 void scan_deleted_files_test(const char *mountpt)
1608 sprintf(sub,"%s/sdir",mountpt);
1611 for(j = 0; j < 10; j++)
1613 printf("\n\n>>>>>>> Run %d <<<<<<<<<<<<<\n\n",j);
1614 yaffs_mount(mountpt);
1618 p = (j & 0) ? mountpt: sub;
1620 for(i = 0; i < 100; i++)
1622 sprintf(fn,"%s/%d",p,i);
1626 h = yaffs_open(fn,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1627 for(k = 0; k < 1000; k++)
1628 yaffs_write(h,fn,100);
1635 for(i = 0; i < 10; i++)
1637 sprintf(fn,"%s/%d",p,i);
1645 yaffs_unmount(mountpt);
1654 void write_10k(int h)
1657 const char *s="0123456789";
1658 for(i = 0; i < 1000; i++)
1659 yaffs_write(h,s,10);
1662 void write_200k_file(const char *fn, const char *fdel, const char *fdel1)
1668 h1 = yaffs_open(fn, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1670 for(i = 0; i < 100000; i+= 10000)
1675 offs = yaffs_lseek(h1,0,SEEK_CUR);
1678 printf("Could not write file\n");
1682 for(i = 0; i < 100000; i+= 10000)
1687 offs = yaffs_lseek(h1,0,SEEK_CUR);
1690 printf("Could not write file\n");
1694 yaffs_unlink(fdel1);
1699 void verify_200k_file(const char *fn)
1704 const char *s="0123456789";
1707 h1 = yaffs_open(fn, O_RDONLY, 0);
1709 for(i = 0; i < 200000 && errCount < 10; i+= 10)
1711 yaffs_read(h1,x,10);
1712 if(strncmp(x,s,10) != 0)
1714 printf("File %s verification failed at %d\n",fn,i);
1719 printf("Too many errors... aborted\n");
1726 void check_resize_gc_bug(const char *mountpt)
1735 sprintf(a,"%s/a",mountpt);
1736 sprintf(b,"%s/b",mountpt);
1737 sprintf(c,"%s/c",mountpt);
1743 yaffs_mount(mountpt);
1747 for(i = 0; i < 50; i++)
1749 printf("A\n");write_200k_file(a,"",c);
1750 printf("B\n");verify_200k_file(a);
1751 printf("C\n");write_200k_file(b,a,c);
1752 printf("D\n");verify_200k_file(b);
1753 yaffs_unmount(mountpt);
1754 yaffs_mount(mountpt);
1755 printf("E\n");verify_200k_file(a);
1756 printf("F\n");verify_200k_file(b);
1762 void multi_mount_test(const char *mountpt,int nmounts)
1770 sprintf(a,"%s/a",mountpt);
1774 for(i = 0; i < nmounts; i++){
1780 static char xx[1000];
1782 printf("############### Iteration %d Start\n",i);
1783 if(1 || i == 0 || i == 5)
1784 yaffs_mount(mountpt);
1786 dump_directory_tree(mountpt);
1791 sprintf(xx,"%s/0",a);
1792 h0 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
1794 sprintf(xx,"%s/1",a);
1795 h1 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
1798 for(j = 0; j < 200; j++){
1799 yaffs_write(h0,xx,1000);
1800 yaffs_write(h1,xx,1000);
1803 while(yaffs_write(h0,xx,1000) > 0){
1805 yaffs_write(h1,xx,1000);
1808 len0 = yaffs_lseek(h0,0,SEEK_END);
1809 len1 = yaffs_lseek(h1,0,SEEK_END);
1811 yaffs_lseek(h0,0,SEEK_SET);
1812 yaffs_lseek(h1,0,SEEK_SET);
1814 for(j = 0; j < 200; j++){
1815 yaffs_read(h0,xx,1000);
1816 yaffs_read(h1,xx,1000);
1820 // yaffs_truncate(h0,0);
1824 printf("########### %d\n",i);
1825 dump_directory_tree(mountpt);
1827 if(1 || i == 4 || i == nmounts -1)
1828 yaffs_unmount(mountpt);
1833 void small_mount_test(const char *mountpt,int nmounts)
1847 sprintf(a,"%s/a",mountpt);
1853 for(i = 0; i < nmounts; i++){
1855 static char xx[1000];
1857 printf("############### Iteration %d Start\n",i);
1858 if(1 || i == 0 || i == 5)
1859 yaffs_mount(mountpt);
1861 dump_directory_tree(mountpt);
1865 sprintf(xx,"%s/0",a);
1868 h0 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
1869 for(j = 0; j < 130; j++)
1870 yaffs_write(h0,xx,1000);
1874 h0 = yaffs_open(xx,O_RDONLY,0);
1876 sprintf(xx,"%s/1",a);
1877 h1 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
1879 while((nread = yaffs_read(h0,xx,1000)) > 0)
1880 yaffs_write(h1,xx,nread);
1883 len0 = yaffs_lseek(h0,0,SEEK_END);
1884 len1 = yaffs_lseek(h1,0,SEEK_END);
1886 yaffs_lseek(h0,0,SEEK_SET);
1887 yaffs_lseek(h1,0,SEEK_SET);
1889 for(j = 0; j < 200; j++){
1890 yaffs_read(h0,xx,1000);
1891 yaffs_read(h1,xx,1000);
1897 printf("########### %d\n",i);
1898 dump_directory_tree(mountpt);
1900 if(1 || i == 4 || i == nmounts -1)
1901 yaffs_unmount(mountpt);
1908 void small_overwrite_test(const char *mountpt,int nmounts)
1919 sprintf(a,"%s/a",mountpt);
1925 for(i = 0; i < nmounts; i++){
1927 static char xx[8000];
1929 printf("############### Iteration %d Start\n",i);
1931 yaffs_mount(mountpt);
1933 dump_directory_tree(mountpt);
1937 sprintf(xx,"%s/0",a);
1938 h0 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
1939 sprintf(xx,"%s/1",a);
1940 h1 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
1942 for(j = 0; j < 1000000; j+=1000){
1943 yaffs_ftruncate(h0,j);
1944 yaffs_lseek(h0,j,SEEK_SET);
1945 yaffs_write(h0,xx,7000);
1946 yaffs_write(h1,xx,7000);
1954 printf("########### %d\n",i);
1955 dump_directory_tree(mountpt);
1958 yaffs_unmount(mountpt);
1963 void seek_overwrite_test(const char *mountpt,int nmounts)
1974 sprintf(a,"%s/f",mountpt);
1978 yaffs_mount(mountpt);
1981 for(i = 0; i < nmounts; i++){
1983 h0 = yaffs_open(a, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
1985 for(j = 0; j < 100000; j++){
1986 yaffs_lseek(h0,0,SEEK_SET);
1987 yaffs_write(h0,xx,5000);
1988 yaffs_lseek(h0,0x100000,SEEK_SET);
1989 yaffs_write(h0,xx,5000);
2001 void yaffs_touch(const char *fn)
2003 yaffs_chmod(fn, S_IREAD | S_IWRITE);
2006 void checkpoint_fill_test(const char *mountpt,int nmounts)
2017 sprintf(a,"%s/a",mountpt);
2024 for(i = 0; i < nmounts; i++){
2025 printf("############### Iteration %d Start\n",i);
2026 yaffs_mount(mountpt);
2027 dump_directory_tree(mountpt);
2030 sprintf(b,"%s/zz",a);
2032 h = yaffs_open(b,O_CREAT | O_RDWR,S_IREAD |S_IWRITE);
2035 while(yaffs_write(h,c,50) == 50){}
2039 for(j = 0; j < 2; j++){
2040 printf("touch %d\n",j);
2042 yaffs_unmount(mountpt);
2043 yaffs_mount(mountpt);
2046 dump_directory_tree(mountpt);
2047 yaffs_unmount(mountpt);
2052 int make_file2(const char *name1, const char *name2,int syz)
2062 h1 = yaffs_open(name1,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
2064 h2 = yaffs_open(name2,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
2066 while(syz > 0 && n > 0){
2067 i = (syz > 2500) ? 2500 : syz;
2068 n = yaffs_write(h1,xx,i);
2069 n = yaffs_write(h2,xx,i);
2078 extern void SetCheckpointReservedBlocks(int n);
2080 void checkpoint_upgrade_test(const char *mountpt,int nmounts)
2090 sprintf(a,"%s/a",mountpt);
2095 printf("Create start condition\n");
2097 SetCheckpointReservedBlocks(0);
2098 yaffs_mount(mountpt);
2100 sprintf(b,"%s/zz",a);
2101 sprintf(c,"%s/xx",a);
2102 make_file2(b,c,2000000);
2103 sprintf(d,"%s/aa",a);
2104 make_file2(d,NULL,500000000);
2105 dump_directory_tree(mountpt);
2107 printf("Umount/mount attempt full\n");
2108 yaffs_unmount(mountpt);
2110 SetCheckpointReservedBlocks(10);
2111 yaffs_mount(mountpt);
2113 printf("unlink small file\n");
2115 dump_directory_tree(mountpt);
2117 printf("Umount/mount attempt\n");
2118 yaffs_unmount(mountpt);
2119 yaffs_mount(mountpt);
2121 for(j = 0; j < 500; j++){
2122 printf("***** touch %d\n",j);
2123 dump_directory_tree(mountpt);
2125 yaffs_unmount(mountpt);
2126 yaffs_mount(mountpt);
2129 for(j = 0; j < 500; j++){
2130 printf("***** touch %d\n",j);
2131 dump_directory_tree(mountpt);
2133 yaffs_unmount(mountpt);
2134 yaffs_mount(mountpt);
2138 void huge_array_test(const char *mountpt,int n)
2149 sprintf(a,"mount point %s",mountpt);
2155 yaffs_mount(mountpt);
2160 printf("\n\n START run\n\n");
2161 while((space = yaffs_freespace(mountpt)) > 25000000){
2162 sprintf(a,"%s/file%d",mountpt,fnum);
2164 printf("create file %s, free space %d\n",a,space);
2165 create_file_of_size(a,10000000);
2166 printf("verifying file %s\n",a);
2167 verify_file_of_size(a,10000000);
2170 printf("\n\n verification/deletion\n\n");
2172 for(i = 0; i < fnum; i++){
2173 sprintf(a,"%s/file%d",mountpt,i);
2174 printf("verifying file %s\n",a);
2175 verify_file_of_size(a,10000000);
2176 printf("deleting file %s\n",a);
2179 printf("\n\n done \n\n");
2186 void random_write(int h)
2188 static char buffer[12000];
2191 n = random() & 0x1FFF;
2192 yaffs_write(h,buffer,n);
2195 void random_seek(int h)
2198 n = random() & 0xFFFFF;
2199 yaffs_lseek(h,n,SEEK_SET);
2202 void random_truncate(int h, char * name)
2206 n = random() & 0xFFFFF;
2207 flen = yaffs_lseek(h,0,SEEK_END);
2210 yaffs_ftruncate(h,n);
2211 yaffs_lseek(h,n,SEEK_SET);
2215 #define NSMALLFILES 10
2216 void random_small_file_test(const char *mountpt,int iterations)
2219 char a[NSMALLFILES][50];
2230 yaffs_mount(mountpt);
2232 for(i = 0; i < NSMALLFILES; i++){
2237 for(n = 0; n < iterations; n++){
2239 for(i = 0; i < NSMALLFILES; i++) {
2242 if(strlen(a[i]) == 0){
2243 sprintf(a[i],"%s/%dx%d",mountpt,n,i);
2244 h[i] = yaffs_open(a[i],O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
2248 printf("Could not open yaffs file %d %d error %d\n",n,i,h[i]);
2258 random_truncate(h[i],a[i]);
2261 case 5: random_seek(h[i]);
2278 for(i = 0; i < NSMALLFILES; i++)
2281 yaffs_unmount(mountpt);
2284 void rmdir_test(const char *mountpt)
2289 yaffs_mount(mountpt);
2291 strcpy(name,mountpt);
2293 strcat(name,"hello");
2294 yaffs_mkdir(name,0666);
2296 yaffs_unmount(mountpt);
2301 int simulate_power_failure;
2303 int main(int argc, char *argv[])
2305 random_seed = time(NULL);
2306 //return long_test(argc,argv);
2308 //return cache_read_test();
2310 // resize_stress_test_no_grow("/flash/flash",20);
2311 //root_perm_remount("/flash/flash");
2313 //huge_directory_test_on_path("/ram2k");
2315 //yaffs_backward_scan_test("/flash/flash");
2316 // yaffs_device_flush_test("/flash/flash");
2318 //rename_over_test("//////////////////flash///////////////////yaffs1///////////");
2320 rmdir_test("/M18-1");
2322 //scan_pattern_test("/flash",10000,10);
2323 //short_scan_test("/flash/flash",40000,200);
2324 //small_mount_test("/flash/flash",1000);
2325 //small_overwrite_test("/flash/flash",1000);
2326 //seek_overwrite_test("/flash/flash",1000);
2327 //checkpoint_fill_test("/flash/flash",20);
2328 //checkpoint_upgrade_test("/flash/flash",20);
2329 //small_overwrite_test("/flash/flash",1000);
2330 //checkpoint_fill_test("/flash/flash",20);
2331 // random_small_file_test("/flash/flash",10000);
2332 // huge_array_test("/flash/flash",10);
2337 //long_test_on_path("/ram2k");
2338 // long_test_on_path("/flash");
2339 //simple_rw_test("/flash/flash");
2340 //fill_disk_test("/flash/flash");
2341 // rename_over_test("/flash");
2342 //lookup_test("/flash");
2343 //freespace_test("/flash/flash");
2345 //link_test("/flash/flash");
2350 // cache_bypass_bug_test();
2352 //free_space_check();
2354 //check_resize_gc_bug("/flash");