Trait AsyncWrite 

pub trait AsyncWrite {
    // Required methods
    fn poll_write(
        self: Pin<&mut Self>,
        cx: &mut Context<'_>,
        buf: &[u8],
    ) -> Poll<Result<usize, BoxError>>;
    fn poll_flush(
        self: Pin<&mut Self>,
        cx: &mut Context<'_>,
    ) -> Poll<Result<(), BoxError>>;
    fn poll_shutdown(
        self: Pin<&mut Self>,
        cx: &mut Context<'_>,
    ) -> Poll<Result<(), BoxError>>;

    // Provided methods
    fn is_write_vectored(&self) -> bool { ... }
    fn poll_write_vectored(
        self: Pin<&mut Self>,
        cx: &mut Context<'_>,
        bufs: &[IoSlice<'_>],
    ) -> Poll<Result<usize, BoxError>> { ... }
}

Trait for async writing operations.

This trait provides an interface for asynchronously writing bytes to a destination.

Required Methods

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

Attempts to write bytes from a buffer.

Errors

Returns an error if the write operation fails.

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

Flushes any buffered data.

Errors

Returns an error if the flush operation fails.

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

Shuts down the writer.

Errors

Returns an error if the shutdown operation fails.

Provided Methods

fn is_write_vectored(&self) -> bool

Returns whether vectored writes are supported.

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

Attempts to write bytes from multiple buffers (vectored I/O).

Errors

Returns an error if the write operation fails.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<P> AsyncWrite for Pin<P>

where P: DerefMut, P::Target: AsyncWrite,

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

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

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

fn is_write_vectored(&self) -> bool

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

impl<T: ?Sized + AsyncWrite + Unpin> AsyncWrite for &mut T

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

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

fn is_write_vectored(&self) -> bool

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

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

impl<T: ?Sized + AsyncWrite + Unpin> AsyncWrite for Box<T>

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

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

fn is_write_vectored(&self) -> bool

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

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

Implementors