+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);
+
+}
+
+
+#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)
+{
+ int handle;
+ char fullname[100];
+
+ 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);
+
+}
+
+