fn write(
        &mut self,
        _req: &Request<'_>,
        _ino: u64,
        _fh: u64,
        _offset: i64,
        _data: &[u8],
        _flags: u32,
    ) -> Result<u32> {
        Err(libc::ENOSYS)
    }
/// Write data.
///
/// `write` should return exactly the number of bytes requested except on error. An exception
/// to this is when the file has been opened in 'direct_io' mode, in which case the return
/// value of the write system call will reflect the return value of this operation. `fh` will
/// contain the value set by the `open` method.
Write data.
`write` should return exactly the number of bytes requested except on error. An exception
to this is when the file has been opened in 'direct_io' mode, in which case the return
value of the write system call will reflect the return value of this operation. `fh` will
contain the value set by the `open` method.
Write data . ` write ` should return exactly the number of bytes requested except on error . An exception to this is when the file has been opened in ' direct_io ' mode in which case the return value of the write system call will reflect the return value of this operation . ` fh ` will contain the value set by the ` open ` method .
fn write(
        &mut self,
        _req: &Request<'_>,
        _ino: u64,
        _fh: u64,
        _offset: i64,
        _data: &[u8],
        _flags: u32,
    ) -> Result<u32> {
        Err(libc::ENOSYS)
    }
fn write ( & mut self , _req : & Request < ' _ > , _ino : u64 , _fh : u64 , _offset : i64 , _data : & [ u8 ] , _flags : u32 , ) -> Result < u32 > { Err ( libc :: ENOSYS ) }
Write data.
Write data .
&mut self
_req
&Request<'_>
_ino
u64
_fh
u64
_offset
i64
_data
&[u8]
_flags
u32
&mut self
_req
&Request<'_>
_ino
u64
_fh
u64
_offset
i64
_data
&[u8]
_flags
u32