Struct Limited

pub struct Limited<Io> { /* private fields */ }

I/O wrapper that limits the number of bytes written or read on each call.

See the limited and limited_write methods.

Implementations

impl<Io> Limited<Io>

pub fn get_ref(&self) -> &Io

Acquires a reference to the underlying I/O object that this adaptor is wrapping.

pub fn get_mut(&mut self) -> &mut Io

Acquires a mutable reference to the underlying I/O object that this adaptor is wrapping.

pub fn get_pin_mut(self: Pin<&mut Self>) -> Pin<&mut Io>

Acquires a pinned mutable reference to the underlying I/O object that this adaptor is wrapping.

pub fn into_inner(self) -> Io

Consumes this adaptor returning the underlying I/O object.

Trait Implementations

impl<R: AsyncBufRead> AsyncBufRead for Limited<R>

fn poll_fill_buf( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Result<&[u8]>>

Attempt to return the contents of the internal buffer, filling it with more data from the inner reader if it is empty.

fn consume(self: Pin<&mut Self>, amount: usize)

Tells this buffer that amt bytes have been consumed from the buffer, so they should no longer be returned in calls to poll_read.

impl<R: AsyncRead> AsyncRead for Limited<R>

fn poll_read( self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &mut [u8], ) -> Poll<Result<usize>>

Attempt to read from the AsyncRead into buf.

fn poll_read_vectored( self: Pin<&mut Self>, cx: &mut Context<'_>, bufs: &mut [IoSliceMut<'_>], ) -> Poll<Result<usize, Error>>

Attempt to read from the AsyncRead into bufs using vectored IO operations.

impl<W: AsyncWrite> AsyncWrite for Limited<W>

fn poll_write( self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &[u8], ) -> Poll<Result<usize>>

Attempt to write bytes from buf into the object.

fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<()>>

Attempt to flush the object, ensuring that any buffered data reach their destination.

fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<()>>

Attempt to close the object.

fn poll_write_vectored( self: Pin<&mut Self>, cx: &mut Context<'_>, bufs: &[IoSlice<'_>], ) -> Poll<Result<usize, Error>>

Attempt to write bytes from bufs into the object using vectored IO operations.

impl<Io: Debug> Debug for Limited<Io>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'pin, Io> Unpin for Limited<Io>

where __Limited<'pin, Io>: Unpin,