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);
440 for(j = 0; j < siz; j++)
442 yaffs_write(h,str,1);
451 } while(h >= 0 && i < maxIterations);
457 sprintf(str,"%s/%d",path,i);
458 printf("unlink %s\n",str);
460 } while(yaffs_unlink(str) >= 0);
464 void leave_unlinked_file(char *path,int maxIterations,int siz)
473 sprintf(str,"%s/%d",path,i);
474 printf("create %s\n",str);
475 h = yaffs_open(str, O_CREAT | O_TRUNC | O_RDWR,S_IREAD | S_IWRITE);
481 } while(h < 0 && i < maxIterations);
485 for(i = 0; i < siz; i++)
487 yaffs_write(h,str,1);
491 printf("Leaving file %s open\n",str);
495 void dumpDirFollow(const char *dname)
502 d = yaffs_opendir(dname);
506 printf("opendir failed\n");
510 while((de = yaffs_readdir(d)) != NULL)
512 sprintf(str,"%s/%s",dname,de->d_name);
516 printf("%s ino %d length %d mode %X ",de->d_name,(int)s.st_ino,(int)s.st_size,s.st_mode);
517 switch(s.st_mode & S_IFMT)
519 case S_IFREG: printf("data file"); break;
520 case S_IFDIR: printf("directory"); break;
521 case S_IFLNK: printf("symlink -->");
522 if(yaffs_readlink(str,str,100) < 0)
525 printf("\"%s\"",str);
527 default: printf("unknown"); break;
537 printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
542 void dump_directory_tree_worker(const char *dname,int recursive)
549 d = yaffs_opendir(dname);
553 printf("opendir failed\n");
557 while((de = yaffs_readdir(d)) != NULL)
559 sprintf(str,"%s/%s",dname,de->d_name);
563 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);
564 switch(s.st_mode & S_IFMT)
566 case S_IFREG: printf("data file"); break;
567 case S_IFDIR: printf("directory"); break;
568 case S_IFLNK: printf("symlink -->");
569 if(yaffs_readlink(str,str,100) < 0)
572 printf("\"%s\"",str);
574 default: printf("unknown"); break;
579 if((s.st_mode & S_IFMT) == S_IFDIR && recursive)
580 dump_directory_tree_worker(str,1);
589 static void dump_directory_tree(const char *dname)
591 dump_directory_tree_worker(dname,1);
593 printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
596 void dumpDir(const char *dname)
597 { dump_directory_tree_worker(dname,0);
599 printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
603 static void PermissionsCheck(const char *path, mode_t tmode, int tflags,int expectedResult)
607 if(yaffs_chmod(path,tmode)< 0) printf("chmod failed\n");
609 fd = yaffs_open(path,tflags,0);
611 if((fd >= 0) != (expectedResult > 0))
613 printf("Permissions check %x %x %d failed\n",tmode,tflags,expectedResult);
617 printf("Permissions check %x %x %d OK\n",tmode,tflags,expectedResult);
626 int long_test(int argc, char *argv[])
637 struct yaffs_stat ystat;
641 yaffs_mount("/boot");
642 yaffs_mount("/data");
643 yaffs_mount("/flash");
646 printf("\nDirectory look-up of /boot\n");
648 printf("\nDirectory look-up of /data\n");
650 printf("\nDirectory look-up of /flash\n");
653 //leave_unlinked_file("/flash",20000,0);
654 //leave_unlinked_file("/data",20000,0);
656 leave_unlinked_file("/ram",20,0);
659 f = yaffs_open("/boot/b1", O_RDONLY,0);
661 printf("open /boot/b1 readonly, f=%d\n",f);
663 f = yaffs_open("/boot/b1", O_CREAT,S_IREAD | S_IWRITE);
665 printf("open /boot/b1 O_CREAT, f=%d\n",f);
668 r = yaffs_write(f,"hello",1);
669 printf("write %d attempted to write to a read-only file\n",r);
673 printf("close %d\n",r);
675 f = yaffs_open("/boot/b1", O_RDWR,0);
677 printf("open /boot/b1 O_RDWR,f=%d\n",f);
680 r = yaffs_write(f,"hello",2);
681 printf("write %d attempted to write to a writeable file\n",r);
682 r = yaffs_write(f,"world",3);
683 printf("write %d attempted to write to a writeable file\n",r);
685 r= yaffs_lseek(f,0,SEEK_END);
686 printf("seek end %d\n",r);
688 r = yaffs_read(f,buffer,10);
689 printf("read %d \"%s\"\n",r,buffer);
690 r= yaffs_lseek(f,0,SEEK_SET);
691 printf("seek set %d\n",r);
693 r = yaffs_read(f,buffer,10);
694 printf("read %d \"%s\"\n",r,buffer);
696 r = yaffs_read(f,buffer,10);
697 printf("read %d \"%s\"\n",r,buffer);
699 // Check values reading at end.
700 // A read past end of file should return 0 for 0 bytes read.
702 r= yaffs_lseek(f,0,SEEK_END);
703 r = yaffs_read(f,buffer,10);
704 printf("read at end returned %d\n",r);
705 r= yaffs_lseek(f,500,SEEK_END);
706 r = yaffs_read(f,buffer,10);
707 printf("read past end returned %d\n",r);
711 printf("close %d\n",r);
713 copy_in_a_file("/boot/yyfile","xxx");
715 // Create a file with a long name
717 copy_in_a_file("/boot/file with a long name","xxx");
720 printf("\nDirectory look-up of /boot\n");
724 r = yaffs_stat("/boot/file with a long name",&ystat);
728 r = yaffs_rename("/boot/file with a long name","/boot/r1");
730 printf("\nDirectory look-up of /boot\n");
734 r = yaffs_unlink("/boot/r1");
736 printf("\nDirectory look-up of /boot\n");
741 r = yaffs_mkdir("/boot/directory1",0);
743 printf("\nDirectory look-up of /boot\n");
745 printf("\nDirectory look-up of /boot/directory1\n");
746 dumpDir("/boot/directory1");
748 // add a file to the directory
749 copy_in_a_file("/boot/directory1/file with a long name","xxx");
751 printf("\nDirectory look-up of /boot\n");
753 printf("\nDirectory look-up of /boot/directory1\n");
754 dumpDir("/boot/directory1");
756 // Attempt to delete directory (should fail)
758 r = yaffs_rmdir("/boot/directory1");
760 printf("\nDirectory look-up of /boot\n");
762 printf("\nDirectory look-up of /boot/directory1\n");
763 dumpDir("/boot/directory1");
765 // Delete file first, then rmdir should work
766 r = yaffs_unlink("/boot/directory1/file with a long name");
767 r = yaffs_rmdir("/boot/directory1");
770 printf("\nDirectory look-up of /boot\n");
772 printf("\nDirectory look-up of /boot/directory1\n");
773 dumpDir("/boot/directory1");
776 fill_disk_and_delete("/boot",20,20);
778 printf("\nDirectory look-up of /boot\n");
782 yaffs_symlink("yyfile","/boot/slink");
784 yaffs_readlink("/boot/slink",str,100);
785 printf("symlink alias is %s\n",str);
790 printf("\nDirectory look-up of /boot\n");
792 printf("\nDirectory look-up of /boot (using stat instead of lstat)\n");
793 dumpDirFollow("/boot");
794 printf("\nDirectory look-up of /boot/directory1\n");
795 dumpDir("/boot/directory1");
797 h = yaffs_open("/boot/slink",O_RDWR,0);
799 printf("file length is %d\n",(int)yaffs_lseek(h,0,SEEK_END));
803 yaffs_unlink("/boot/slink");
806 printf("\nDirectory look-up of /boot\n");
811 yaffs_stat("/boot/yyfile",&ystat);
812 temp_mode = ystat.st_mode;
814 yaffs_chmod("/boot/yyfile",0x55555);
815 printf("\nDirectory look-up of /boot\n");
818 yaffs_chmod("/boot/yyfile",temp_mode);
819 printf("\nDirectory look-up of /boot\n");
822 // Permission checks...
823 PermissionsCheck("/boot/yyfile",0, O_WRONLY,0);
824 PermissionsCheck("/boot/yyfile",0, O_RDONLY,0);
825 PermissionsCheck("/boot/yyfile",0, O_RDWR,0);
827 PermissionsCheck("/boot/yyfile",S_IREAD, O_WRONLY,0);
828 PermissionsCheck("/boot/yyfile",S_IREAD, O_RDONLY,1);
829 PermissionsCheck("/boot/yyfile",S_IREAD, O_RDWR,0);
831 PermissionsCheck("/boot/yyfile",S_IWRITE, O_WRONLY,1);
832 PermissionsCheck("/boot/yyfile",S_IWRITE, O_RDONLY,0);
833 PermissionsCheck("/boot/yyfile",S_IWRITE, O_RDWR,0);
835 PermissionsCheck("/boot/yyfile",S_IREAD | S_IWRITE, O_WRONLY,1);
836 PermissionsCheck("/boot/yyfile",S_IREAD | S_IWRITE, O_RDONLY,1);
837 PermissionsCheck("/boot/yyfile",S_IREAD | S_IWRITE, O_RDWR,1);
839 yaffs_chmod("/boot/yyfile",temp_mode);
841 //create a zero-length file and unlink it (test for scan bug)
843 h = yaffs_open("/boot/zlf",O_CREAT | O_TRUNC | O_RDWR,0);
846 yaffs_unlink("/boot/zlf");
849 yaffs_DumpDevStruct("/boot");
851 fill_disk_and_delete("/boot",20,20);
853 yaffs_DumpDevStruct("/boot");
855 fill_files("/boot",1,10000,0);
856 fill_files("/boot",1,10000,5000);
857 fill_files("/boot",2,10000,0);
858 fill_files("/boot",2,10000,5000);
860 leave_unlinked_file("/data",20000,0);
861 leave_unlinked_file("/data",20000,5000);
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);
867 yaffs_DumpDevStruct("/boot");
868 yaffs_DumpDevStruct("/data");
876 int huge_directory_test_on_path(char *path)
896 // Create a large number of files
898 for(i = 0; i < 2000; i++)
900 sprintf(str,"%s/%d",path,i);
902 f = yaffs_open(str,O_CREAT,S_IREAD | S_IWRITE);
908 d = yaffs_opendir(path);
911 while((de = yaffs_readdir(d)) != NULL) {
912 if (total >lastTotal+100*9*1024||(i & 1023)==0){
913 printf("files = %d, total = %d\n",i, total);
917 sprintf(str,"%s/%s",path,de->d_name);
919 switch(s.st_mode & S_IFMT){
921 //printf("data file");
933 int yaffs_scan_test(const char *path)
939 void rename_over_test(const char *mountpt)
946 sprintf(a,"%s/a",mountpt);
947 sprintf(b,"%s/b",mountpt);
948 sprintf(c,"%s/c",mountpt);
952 yaffs_mount(mountpt);
954 printf("Existing files\n");
955 dumpDirFollow(mountpt);
959 i = yaffs_open(c,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
960 printf("File c handle is %d\n",i);
962 i = yaffs_open(a,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
964 i = yaffs_open(b,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
966 yaffs_rename(a,b); // rename over
967 yaffs_rename(b,a); // rename back again (not renaimng over)
968 yaffs_rename(a,b); // rename back again (not renaimng over)
971 yaffs_unmount(mountpt);
976 int resize_stress_test(const char *path)
991 sprintf(aname,"%s%s",path,"/a");
992 sprintf(bname,"%s%s",path,"/b");
994 memset(abuffer,'a',1000);
995 memset(bbuffer,'b',1000);
997 a = yaffs_open(aname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
998 b = yaffs_open(bname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1000 printf(" %s %d %s %d\n",aname,a,bname,b);
1004 for(j = 0; j < 100; j++)
1006 yaffs_lseek(a,0,SEEK_END);
1009 for(i = 0; i <20000; i++)
1011 //r = yaffs_lseek(b,i,SEEK_SET);
1012 //r = yaffs_write(b,bbuffer,1000);
1017 int syz = yaffs_lseek(a,0,SEEK_END);
1020 if(syz < 0) syz = 0;
1021 yaffs_ftruncate(a,syz);
1027 r = yaffs_lseek(a,i * 500,SEEK_SET);
1028 r = yaffs_write(a,abuffer,1000);
1039 int root_perm_remount(const char *path)
1041 struct yaffs_stat s;
1047 yaffs_stat(path,&s);
1048 printf("root perms after mount %x\n",s.st_mode);
1050 yaffs_chmod(path, 0777);
1052 yaffs_stat(path,&s);
1053 printf("root perms after setting to 0777 is %x\n",s.st_mode);
1055 yaffs_unmount(path);
1062 int resize_stress_test_no_grow_complex(const char *path,int iters)
1078 sprintf(aname,"%s%s",path,"/a");
1079 sprintf(bname,"%s%s",path,"/b");
1081 memset(abuffer,'a',1000);
1082 memset(bbuffer,'b',1000);
1084 a = yaffs_open(aname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1085 b = yaffs_open(bname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1087 printf(" %s %d %s %d\n",aname,a,bname,b);
1091 for(j = 0; j < iters; j++)
1093 yaffs_lseek(a,0,SEEK_END);
1096 for(i = 0; i <20000; i++)
1098 //r = yaffs_lseek(b,i,SEEK_SET);
1099 //r = yaffs_write(b,bbuffer,1000);
1104 int syz = yaffs_lseek(a,0,SEEK_END);
1110 if(syz < 0) syz = 0;
1111 yaffs_ftruncate(a,syz);
1112 syz = yaffs_lseek(a,0,SEEK_END);
1113 printf("shrink to %d\n",syz);
1121 r = yaffs_lseek(a,500,SEEK_END);
1122 r = yaffs_write(a,abuffer,1000);
1129 printf("file size is %lld\n",(long long)yaffs_lseek(a,0,SEEK_END));
1137 int resize_stress_test_no_grow(const char *path,int iters)
1152 sprintf(aname,"%s%s",path,"/a");
1153 sprintf(bname,"%s%s",path,"/b");
1155 memset(abuffer,'a',1000);
1156 memset(bbuffer,'b',1000);
1158 a = yaffs_open(aname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1159 b = yaffs_open(bname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1161 printf(" %s %d %s %d\n",aname,a,bname,b);
1165 for(j = 0; j < iters; j++)
1167 yaffs_lseek(a,0,SEEK_END);
1170 for(i = 0; i <20000; i++)
1172 //r = yaffs_lseek(b,i,SEEK_SET);
1173 //r = yaffs_write(b,bbuffer,1000);
1178 int syz = yaffs_lseek(a,0,SEEK_END);
1184 if(syz < 0) syz = 0;
1185 yaffs_ftruncate(a,syz);
1186 syz = yaffs_lseek(a,0,SEEK_END);
1187 printf("shrink to %d\n",syz);
1195 r = yaffs_lseek(a,-500,SEEK_END);
1196 r = yaffs_write(a,abuffer,1000);
1202 printf("file size is %lld\n",(long long)yaffs_lseek(a,0,SEEK_END));
1210 int directory_rename_test(void)
1215 yaffs_mount("/ram");
1216 yaffs_mkdir("/ram/a",0);
1217 yaffs_mkdir("/ram/a/b",0);
1218 yaffs_mkdir("/ram/c",0);
1220 printf("\nDirectory look-up of /ram\n");
1223 dumpDir("/ram/a/b");
1225 printf("Do rename (should fail)\n");
1227 r = yaffs_rename("/ram/a","/ram/a/b/d");
1228 printf("\nDirectory look-up of /ram\n");
1231 dumpDir("/ram/a/b");
1233 printf("Do rename (should not fail)\n");
1235 r = yaffs_rename("/ram/c","/ram/a/b/d");
1236 printf("\nDirectory look-up of /ram\n");
1239 dumpDir("/ram/a/b");
1246 int cache_read_test(void)
1250 int sizeOfFiles = 500000;
1255 yaffs_mount("/boot");
1257 make_a_file("/boot/a",'a',sizeOfFiles);
1258 make_a_file("/boot/b",'b',sizeOfFiles);
1260 a = yaffs_open("/boot/a",O_RDONLY,0);
1261 b = yaffs_open("/boot/b",O_RDONLY,0);
1262 c = yaffs_open("/boot/c", O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
1266 if (i > 100) i = 100;
1268 yaffs_read(a,buffer,i);
1269 yaffs_read(b,buffer,i);
1270 yaffs_write(c,buffer,i);
1271 } while(sizeOfFiles > 0);
1279 int cache_bypass_bug_test(void)
1281 // This test reporoduces a bug whereby YAFFS caching *was* buypassed
1282 // resulting in erroneous reads after writes.
1283 // This bug has been fixed.
1289 memset(buffer1,0,sizeof(buffer1));
1290 memset(buffer2,0,sizeof(buffer2));
1294 yaffs_mount("/boot");
1296 // Create a file of 2000 bytes.
1297 make_a_file("/boot/a",'X',2000);
1299 a = yaffs_open("/boot/a",O_RDWR, S_IREAD | S_IWRITE);
1301 // Write a short sequence to the file.
1302 // This will go into the cache.
1303 yaffs_lseek(a,0,SEEK_SET);
1304 yaffs_write(a,"abcdefghijklmnopqrstuvwxyz",20);
1306 // Read a short sequence from the file.
1307 // This will come from the cache.
1308 yaffs_lseek(a,0,SEEK_SET);
1309 yaffs_read(a,buffer1,30);
1311 // Read a page size sequence from the file.
1312 yaffs_lseek(a,0,SEEK_SET);
1313 yaffs_read(a,buffer2,512);
1315 printf("buffer 1 %s\n",buffer1);
1316 printf("buffer 2 %s\n",buffer2);
1318 if(strncmp(buffer1,buffer2,20))
1320 printf("Cache bypass bug detected!!!!!\n");
1328 int free_space_check(void)
1333 yaffs_mount("/boot");
1334 fill_disk("/boot/",2);
1335 f = yaffs_freespace("/boot");
1337 printf("%d free when disk full\n",f);
1341 int truncate_test(void)
1351 yaffs_mount("/boot");
1353 yaffs_unlink("/boot/trunctest");
1355 a = yaffs_open("/boot/trunctest", O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1357 yaffs_write(a,"abcdefghijklmnopqrstuvwzyz",26);
1359 yaffs_ftruncate(a,3);
1360 l= yaffs_lseek(a,0,SEEK_END);
1362 printf("truncated length is %d\n",l);
1364 yaffs_lseek(a,5,SEEK_SET);
1365 yaffs_write(a,"1",1);
1367 yaffs_lseek(a,0,SEEK_SET);
1369 r = yaffs_read(a,y,10);
1371 printf("read %d bytes:",r);
1373 for(i = 0; i < r; i++) printf("[%02X]",y[i]);
1385 void fill_disk_test(const char *mountpt)
1390 for(i = 0; i < 5; i++)
1392 yaffs_mount(mountpt);
1393 fill_disk_and_delete(mountpt,100,i+1);
1394 yaffs_unmount(mountpt);
1400 void fill_files_test(const char *mountpt)
1405 for(i = 0; i < 5; i++)
1407 yaffs_mount(mountpt);
1408 fill_files(mountpt,2,3,100);
1409 yaffs_unmount(mountpt);
1414 void fill_empty_files_test(const char *mountpt)
1423 for(i = 0; i < 5; i++)
1425 yaffs_mount(mountpt);
1426 for(d = 0; result >= 0 && d < 1000; d++){
1427 sprintf(name,"%s/%d",mountpt,d);
1428 result= yaffs_mkdir(name,0);
1429 printf("creating directory %s result %d\n",name,result);
1431 for(f = 0; result >= 0 && f < 100; f++){
1432 sprintf(name,"%s/%d/%d",mountpt,d,f);
1433 result= yaffs_open(name,O_CREAT, 0);
1434 yaffs_close(result);
1435 printf("creating file %s result %d\n",name,result);
1438 yaffs_unmount(mountpt);
1445 void lookup_test(const char *mountpt)
1457 yaffs_mount(mountpt);
1459 d = yaffs_opendir(mountpt);
1463 printf("opendir failed\n");
1468 for(i = 0; (de = yaffs_readdir(d)) != NULL; i++)
1470 printf("unlinking %s\n",de->d_name);
1471 yaffs_unlink(de->d_name);
1474 printf("%d files deleted\n",i);
1478 for(i = 0; i < 2000; i++){
1479 sprintf(a,"%s/%d",mountpt,i);
1480 h = yaffs_open(a,O_CREAT | O_TRUNC | O_RDWR, 0);
1485 for(i = 0; (de = yaffs_readdir(d)) != NULL; i++)
1487 printf("%d %s\n",i,de->d_name);
1490 printf("%d files listed\n\n\n",i);
1497 for(i = 0; i < 2000; i++){
1498 sprintf(a,"%s/%d",mountpt,i);
1503 yaffs_unmount(mountpt);
1507 void link_test(const char *mountpt)
1515 sprintf(a,"%s/aaa",mountpt);
1516 sprintf(b,"%s/bbb",mountpt);
1517 sprintf(c,"%s/ccc",mountpt);
1521 yaffs_mount(mountpt);
1524 h = yaffs_open(a, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1525 for(i = 0; i < 100; i++)
1526 yaffs_write(h,a,100);
1539 yaffs_unmount(mountpt);
1540 yaffs_mount(mountpt);
1542 printf("link test done\n");
1546 void freespace_test(const char *mountpt)
1556 sprintf(a,"%s/aaa",mountpt);
1560 yaffs_mount(mountpt);
1562 f0 = yaffs_freespace(mountpt);
1564 h = yaffs_open(a, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1566 for(i = 0; i < 100; i++)
1567 yaffs_write(h,a,100);
1571 f1 = yaffs_freespace(mountpt);
1575 f2 = yaffs_freespace(mountpt);
1578 yaffs_unmount(mountpt);
1579 yaffs_mount(mountpt);
1581 f3 = yaffs_freespace(mountpt);
1583 printf("%d\n%d\n%d\n%d\n",f0, f1,f2,f3);
1588 void simple_rw_test(const char *mountpt)
1597 sprintf(a,"%s/aaa",mountpt);
1601 yaffs_mount(mountpt);
1605 h = yaffs_open(a,O_CREAT| O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1607 for(i = 100000;i < 200000; i++){
1608 result = yaffs_write(h,&i,sizeof(i));
1612 printf("write error\n");
1619 // h = yaffs_open(a,O_RDWR, S_IREAD | S_IWRITE);
1622 yaffs_lseek(h,0,SEEK_SET);
1624 for(i = 100000; i < 200000; i++){
1625 result = yaffs_read(h,&x,sizeof(x));
1627 if(result != 4 || x != i){
1628 printf("read error %d %x %x\n",i,result,x);
1632 printf("Simple rw test passed\n");
1639 void scan_deleted_files_test(const char *mountpt)
1651 sprintf(sub,"%s/sdir",mountpt);
1654 for(j = 0; j < 10; j++)
1656 printf("\n\n>>>>>>> Run %d <<<<<<<<<<<<<\n\n",j);
1657 yaffs_mount(mountpt);
1661 p = (j & 0) ? mountpt: sub;
1663 for(i = 0; i < 100; i++)
1665 sprintf(fn,"%s/%d",p,i);
1669 h = yaffs_open(fn,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1670 for(k = 0; k < 1000; k++)
1671 yaffs_write(h,fn,100);
1678 for(i = 0; i < 10; i++)
1680 sprintf(fn,"%s/%d",p,i);
1688 yaffs_unmount(mountpt);
1697 void write_10k(int h)
1700 const char *s="0123456789";
1701 for(i = 0; i < 1000; i++)
1702 yaffs_write(h,s,10);
1705 void write_200k_file(const char *fn, const char *fdel, const char *fdel1)
1711 h1 = yaffs_open(fn, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
1713 for(i = 0; i < 100000; i+= 10000)
1718 offs = yaffs_lseek(h1,0,SEEK_CUR);
1721 printf("Could not write file\n");
1725 for(i = 0; i < 100000; i+= 10000)
1730 offs = yaffs_lseek(h1,0,SEEK_CUR);
1733 printf("Could not write file\n");
1737 yaffs_unlink(fdel1);
1742 void verify_200k_file(const char *fn)
1747 const char *s="0123456789";
1750 h1 = yaffs_open(fn, O_RDONLY, 0);
1752 for(i = 0; i < 200000 && errCount < 10; i+= 10)
1754 yaffs_read(h1,x,10);
1755 if(strncmp(x,s,10) != 0)
1757 printf("File %s verification failed at %d\n",fn,i);
1762 printf("Too many errors... aborted\n");
1769 void check_resize_gc_bug(const char *mountpt)
1778 sprintf(a,"%s/a",mountpt);
1779 sprintf(b,"%s/b",mountpt);
1780 sprintf(c,"%s/c",mountpt);
1786 yaffs_mount(mountpt);
1790 for(i = 0; i < 50; i++)
1792 printf("A\n");write_200k_file(a,"",c);
1793 printf("B\n");verify_200k_file(a);
1794 printf("C\n");write_200k_file(b,a,c);
1795 printf("D\n");verify_200k_file(b);
1796 yaffs_unmount(mountpt);
1797 yaffs_mount(mountpt);
1798 printf("E\n");verify_200k_file(a);
1799 printf("F\n");verify_200k_file(b);
1805 void multi_mount_test(const char *mountpt,int nmounts)
1813 sprintf(a,"%s/a",mountpt);
1817 for(i = 0; i < nmounts; i++){
1823 static char xx[1000];
1825 printf("############### Iteration %d Start\n",i);
1826 if(1 || i == 0 || i == 5)
1827 yaffs_mount(mountpt);
1829 dump_directory_tree(mountpt);
1834 sprintf(xx,"%s/0",a);
1835 h0 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
1837 sprintf(xx,"%s/1",a);
1838 h1 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
1841 for(j = 0; j < 200; j++){
1842 yaffs_write(h0,xx,1000);
1843 yaffs_write(h1,xx,1000);
1846 while(yaffs_write(h0,xx,1000) > 0){
1848 yaffs_write(h1,xx,1000);
1851 len0 = yaffs_lseek(h0,0,SEEK_END);
1852 len1 = yaffs_lseek(h1,0,SEEK_END);
1854 yaffs_lseek(h0,0,SEEK_SET);
1855 yaffs_lseek(h1,0,SEEK_SET);
1857 for(j = 0; j < 200; j++){
1858 yaffs_read(h0,xx,1000);
1859 yaffs_read(h1,xx,1000);
1863 // yaffs_truncate(h0,0);
1867 printf("########### %d\n",i);
1868 dump_directory_tree(mountpt);
1870 if(1 || i == 4 || i == nmounts -1)
1871 yaffs_unmount(mountpt);
1876 void small_mount_test(const char *mountpt,int nmounts)
1890 sprintf(a,"%s/a",mountpt);
1896 for(i = 0; i < nmounts; i++){
1898 static char xx[1000];
1900 printf("############### Iteration %d Start\n",i);
1901 if(1 || i == 0 || i == 5)
1902 yaffs_mount(mountpt);
1904 dump_directory_tree(mountpt);
1908 sprintf(xx,"%s/0",a);
1911 h0 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
1912 for(j = 0; j < 130; j++)
1913 yaffs_write(h0,xx,1000);
1917 h0 = yaffs_open(xx,O_RDONLY,0);
1919 sprintf(xx,"%s/1",a);
1920 h1 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
1922 while((nread = yaffs_read(h0,xx,1000)) > 0)
1923 yaffs_write(h1,xx,nread);
1926 len0 = yaffs_lseek(h0,0,SEEK_END);
1927 len1 = yaffs_lseek(h1,0,SEEK_END);
1929 yaffs_lseek(h0,0,SEEK_SET);
1930 yaffs_lseek(h1,0,SEEK_SET);
1932 for(j = 0; j < 200; j++){
1933 yaffs_read(h0,xx,1000);
1934 yaffs_read(h1,xx,1000);
1940 printf("########### %d\n",i);
1941 dump_directory_tree(mountpt);
1943 if(1 || i == 4 || i == nmounts -1)
1944 yaffs_unmount(mountpt);
1951 void small_overwrite_test(const char *mountpt,int nmounts)
1962 sprintf(a,"%s/a",mountpt);
1968 for(i = 0; i < nmounts; i++){
1970 static char xx[8000];
1972 printf("############### Iteration %d Start\n",i);
1974 yaffs_mount(mountpt);
1976 dump_directory_tree(mountpt);
1980 sprintf(xx,"%s/0",a);
1981 h0 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
1982 sprintf(xx,"%s/1",a);
1983 h1 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
1985 for(j = 0; j < 1000000; j+=1000){
1986 yaffs_ftruncate(h0,j);
1987 yaffs_lseek(h0,j,SEEK_SET);
1988 yaffs_write(h0,xx,7000);
1989 yaffs_write(h1,xx,7000);
1997 printf("########### %d\n",i);
1998 dump_directory_tree(mountpt);
2001 yaffs_unmount(mountpt);
2006 void seek_overwrite_test(const char *mountpt,int nmounts)
2017 sprintf(a,"%s/f",mountpt);
2021 yaffs_mount(mountpt);
2024 for(i = 0; i < nmounts; i++){
2026 h0 = yaffs_open(a, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
2028 for(j = 0; j < 100000; j++){
2029 yaffs_lseek(h0,0,SEEK_SET);
2030 yaffs_write(h0,xx,5000);
2031 yaffs_lseek(h0,0x100000,SEEK_SET);
2032 yaffs_write(h0,xx,5000);
2044 void yaffs_touch(const char *fn)
2046 yaffs_chmod(fn, S_IREAD | S_IWRITE);
2049 void checkpoint_fill_test(const char *mountpt,int nmounts)
2060 sprintf(a,"%s/a",mountpt);
2067 for(i = 0; i < nmounts; i++){
2068 printf("############### Iteration %d Start\n",i);
2069 yaffs_mount(mountpt);
2070 dump_directory_tree(mountpt);
2073 sprintf(b,"%s/zz",a);
2075 h = yaffs_open(b,O_CREAT | O_RDWR,S_IREAD |S_IWRITE);
2078 while(yaffs_write(h,c,50) == 50){}
2082 for(j = 0; j < 2; j++){
2083 printf("touch %d\n",j);
2085 yaffs_unmount(mountpt);
2086 yaffs_mount(mountpt);
2089 dump_directory_tree(mountpt);
2090 yaffs_unmount(mountpt);
2095 int make_file2(const char *name1, const char *name2,int syz)
2105 h1 = yaffs_open(name1,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
2107 h2 = yaffs_open(name2,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
2109 while(syz > 0 && n > 0){
2110 i = (syz > 2500) ? 2500 : syz;
2111 n = yaffs_write(h1,xx,i);
2112 n = yaffs_write(h2,xx,i);
2121 extern void SetCheckpointReservedBlocks(int n);
2123 void checkpoint_upgrade_test(const char *mountpt,int nmounts)
2133 sprintf(a,"%s/a",mountpt);
2138 printf("Create start condition\n");
2140 SetCheckpointReservedBlocks(0);
2141 yaffs_mount(mountpt);
2143 sprintf(b,"%s/zz",a);
2144 sprintf(c,"%s/xx",a);
2145 make_file2(b,c,2000000);
2146 sprintf(d,"%s/aa",a);
2147 make_file2(d,NULL,500000000);
2148 dump_directory_tree(mountpt);
2150 printf("Umount/mount attempt full\n");
2151 yaffs_unmount(mountpt);
2153 SetCheckpointReservedBlocks(10);
2154 yaffs_mount(mountpt);
2156 printf("unlink small file\n");
2158 dump_directory_tree(mountpt);
2160 printf("Umount/mount attempt\n");
2161 yaffs_unmount(mountpt);
2162 yaffs_mount(mountpt);
2164 for(j = 0; j < 500; j++){
2165 printf("***** touch %d\n",j);
2166 dump_directory_tree(mountpt);
2168 yaffs_unmount(mountpt);
2169 yaffs_mount(mountpt);
2172 for(j = 0; j < 500; j++){
2173 printf("***** touch %d\n",j);
2174 dump_directory_tree(mountpt);
2176 yaffs_unmount(mountpt);
2177 yaffs_mount(mountpt);
2181 void huge_array_test(const char *mountpt,int n)
2192 sprintf(a,"mount point %s",mountpt);
2198 yaffs_mount(mountpt);
2203 printf("\n\n START run\n\n");
2204 while((space = yaffs_freespace(mountpt)) > 25000000){
2205 sprintf(a,"%s/file%d",mountpt,fnum);
2207 printf("create file %s, free space %d\n",a,space);
2208 create_file_of_size(a,10000000);
2209 printf("verifying file %s\n",a);
2210 verify_file_of_size(a,10000000);
2213 printf("\n\n verification/deletion\n\n");
2215 for(i = 0; i < fnum; i++){
2216 sprintf(a,"%s/file%d",mountpt,i);
2217 printf("verifying file %s\n",a);
2218 verify_file_of_size(a,10000000);
2219 printf("deleting file %s\n",a);
2222 printf("\n\n done \n\n");
2229 void random_write(int h)
2231 static char buffer[12000];
2234 n = random() & 0x1FFF;
2235 yaffs_write(h,buffer,n);
2238 void random_seek(int h)
2241 n = random() & 0xFFFFF;
2242 yaffs_lseek(h,n,SEEK_SET);
2245 void random_truncate(int h, char * name)
2249 n = random() & 0xFFFFF;
2250 flen = yaffs_lseek(h,0,SEEK_END);
2253 yaffs_ftruncate(h,n);
2254 yaffs_lseek(h,n,SEEK_SET);
2258 #define NSMALLFILES 10
2259 void random_small_file_test(const char *mountpt,int iterations)
2262 char a[NSMALLFILES][50];
2273 yaffs_mount(mountpt);
2275 for(i = 0; i < NSMALLFILES; i++){
2280 for(n = 0; n < iterations; n++){
2282 for(i = 0; i < NSMALLFILES; i++) {
2285 if(strlen(a[i]) == 0){
2286 sprintf(a[i],"%s/%dx%d",mountpt,n,i);
2287 h[i] = yaffs_open(a[i],O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
2291 printf("Could not open yaffs file %d %d error %d\n",n,i,h[i]);
2301 random_truncate(h[i],a[i]);
2304 case 5: random_seek(h[i]);
2321 for(i = 0; i < NSMALLFILES; i++)
2324 yaffs_unmount(mountpt);
2327 void rmdir_test(const char *mountpt)
2332 yaffs_mount(mountpt);
2334 strcpy(name,mountpt);
2336 strcat(name,"hello");
2337 yaffs_mkdir(name,0666);
2339 yaffs_unmount(mountpt);
2344 int simulate_power_failure;
2346 int main(int argc, char *argv[])
2348 random_seed = time(NULL);
2349 //return long_test(argc,argv);
2351 //return cache_read_test();
2353 // resize_stress_test_no_grow("/flash/flash",20);
2354 //root_perm_remount("/flash/flash");
2356 //huge_directory_test_on_path("/ram2k");
2358 //yaffs_backward_scan_test("/flash/flash");
2359 // yaffs_device_flush_test("/flash/flash");
2361 //rename_over_test("//////////////////flash///////////////////yaffs1///////////");
2363 fill_empty_files_test("/yaffs2/");
2365 //scan_pattern_test("/flash",10000,10);
2366 //short_scan_test("/flash/flash",40000,200);
2367 //small_mount_test("/flash/flash",1000);
2368 //small_overwrite_test("/flash/flash",1000);
2369 //seek_overwrite_test("/flash/flash",1000);
2370 //checkpoint_fill_test("/flash/flash",20);
2371 //checkpoint_upgrade_test("/flash/flash",20);
2372 //small_overwrite_test("/flash/flash",1000);
2373 //checkpoint_fill_test("/flash/flash",20);
2374 // random_small_file_test("/flash/flash",10000);
2375 // huge_array_test("/flash/flash",10);
2380 //long_test_on_path("/ram2k");
2381 // long_test_on_path("/flash");
2382 //simple_rw_test("/flash/flash");
2383 //fill_disk_test("/flash/flash");
2384 // rename_over_test("/flash");
2385 //lookup_test("/flash");
2386 //freespace_test("/flash/flash");
2388 //link_test("/flash/flash");
2393 // cache_bypass_bug_test();
2395 //free_space_check();
2397 //check_resize_gc_bug("/flash");