fn readdir(
        &mut self,
        _req: &Request<'_>,
        _ino: u64,
        _fh: u64,
        _offset: i64,
    ) -> Result<reply::Data<'_>> {
        Err(libc::ENOSYS)
    }
/// Read directory.
///
/// `fh` will contain the value set by the `opendir` method.
//
// TODO: Encapsulate directory fill buffer as reply::Directory and use as return type here
Read directory.
`fh` will contain the value set by the `opendir` method.

Encapsulate directory fill buffer as reply::Directory and use as return type here
Read directory . ` fh ` will contain the value set by the ` opendir ` method . Encapsulate directory fill buffer as reply :: Directory and use as return type here
fn readdir(
        &mut self,
        _req: &Request<'_>,
        _ino: u64,
        _fh: u64,
        _offset: i64,
    ) -> Result<reply::Data<'_>> {
        Err(libc::ENOSYS)
    }
fn readdir ( & mut self , _req : & Request < ' _ > , _ino : u64 , _fh : u64 , _offset : i64 , ) -> Result < reply :: Data < ' _ > > { Err ( libc :: ENOSYS ) }
Read directory.
Read directory .
&mut self
_req
&Request<'_>
_ino
u64
_fh
u64
_offset
i64
&mut self
_req
&Request<'_>
_ino
u64
_fh
u64
_offset
i64