+int cache_read_test(void)
+{
+ int a,b,c;
+ int i;
+ int sizeOfFiles = 500000;
+ char buffer[100];
+
+ yaffs_StartUp();
+
+ 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 is buypassed
+ // resulting in erroneous reads after writes.
+ int a;
+ int i;
+ char buffer1[1000];
+ char buffer2[1000];
+
+ memset(buffer1,0,sizeof(buffer1));
+ memset(buffer2,0,sizeof(buffer2));
+
+ yaffs_StartUp();
+
+ 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_StartUp();
+ yaffs_mount("/boot");
+ fill_disk("/boot/",2);
+ f = yaffs_freespace("/boot");
+
+ printf("%d free when disk full\n",f);
+ return 1;
+}
+
+