35     fn read_at(&self, offset: usize, len: usize, buf: &mut [u8]) -> Result<usize, SystemError>;  in read_at()
42     fn write_at(&self, offset: usize, len: usize, buf: &[u8]) -> Result<usize, SystemError>;  in write_at()
63         count: usize,  in read_at()
65     ) -> Result<usize, SystemError>;  in read_at()
77         count: usize,  in write_at()
79     ) -> Result<usize, SystemError>;  in write_at()
100     fn block_size(&self) -> usize;  in block_size()
109     fn read_at(&self, offset: usize, len: usize, buf: &mut [u8]) -> Result<usize, SystemError> {  in read_at()
145     fn write_at(&self, offset: usize, len: usize, buf: &[u8]) -> Result<usize, SystemError> {  in write_at()
209     pub fn new(start_addr: usize, end_addr: usize, blk_size_log2: u8) -> BlockIter {  in new()
217     pub fn new_multiblock(start_addr: usize, end_addr: usize, blk_size_log2: u8) -> BlockIter {  in new_multiblock()
301     pub fn len(&self) -> usize {  in len()
314     pub fn origin_begin(&self) -> usize {  in origin_begin()
318     pub fn origin_end(&self) -> usize {  in origin_end()
325 pub fn __bytes_to_lba(addr: usize, blk_size: usize) -> BlockId {  in __bytes_to_lba()
331 pub fn __lba_to_bytes(lba_id: usize, blk_size: usize) -> BlockId {  in __lba_to_bytes()