106     pub fn new(inode: Arc<dyn IndexNode>, mode: FileMode) -> Result<Self, SystemError> {  in new()
128     pub fn read(&mut self, len: usize, buf: &mut [u8]) -> Result<usize, SystemError> {  in read()
155     pub fn write(&mut self, len: usize, buf: &[u8]) -> Result<usize, SystemError> {  in write()
175     pub fn metadata(&self) -> Result<Metadata, SystemError> {  in metadata()
180     pub fn get_entry_name(&self, ino: usize) -> Result<String, SystemError> {  in get_entry_name()
187     pub fn lseek(&mut self, origin: SeekFrom) -> Result<usize, SystemError> {  in lseek()
223     pub fn readable(&self) -> Result<(), SystemError> {  in readable()  argument
234     pub fn writeable(&self) -> Result<(), SystemError> {  in writeable()  argument
245     pub fn readdir(&mut self, dirent: &mut Dirent) -> Result<u64, SystemError> {  in readdir()
340     pub fn set_mode(&mut self, mode: FileMode) -> Result<(), SystemError> {  in set_mode()  argument
356     pub fn ftruncate(&mut self, len: usize) -> Result<(), SystemError> {  in ftruncate()  argument
368         let r: Result<(), SystemError> = self.inode.close(&mut self.private_data);  in drop()