Struct DetachableIo

pub struct DetachableIo<T> { /* private fields */ }

An object implementing [AsyncRead] or [AsyncWrite] whose underlying object can be detached.

Once the object is detached (via IoDetacher::detach), reads will return Ok(0) (indicating EOF), and writes will fail with std::io::ErrorKind::BrokenPipe.

Implementations

impl<T> DetachableIo<T>

pub fn detached() -> Self

Makes an object that’s already in the detached state.

Trait Implementations

impl<T: AsyncRead + Unpin> AsyncRead for DetachableIo<T>

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>>

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

impl<T: AsyncWrite + Unpin> AsyncWrite for DetachableIo<T>

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>>

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

impl<T: Debug> Debug for DetachableIo<T>

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

Formats the value using the given formatter.

impl<T: InspectMut> InspectMut for DetachableIo<T>

fn inspect_mut(&mut self, req: Request<'_>)

Inspects the object.

impl<T: SerialIo + Unpin> SerialIo for DetachableIo<T>

fn is_connected(&self) -> bool

Returns true if the backend is already connected.

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

Polls for the serial backend to connect.

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

Polls for the serial backend to disconnect.