Struct OwnedWriteHalf 

pub struct OwnedWriteHalf { /* private fields */ }

Available on crate feature tokio only.

Owned input half returned by Session::into_parts.

Bytes written here become console input for the child, exactly as if they had been typed: line-oriented programs expect \r\n, not \n.

AsyncWriteExt::flush is a no-op: writes go straight to the pipe, and there is no user-space buffer to push.

Dropping — or shutting down — this half ends the session

Closing this half is not a polite “no more input” signal. It closes conin and requests pseudoconsole close, which sends a close event to every attached client. A child that is still running is therefore terminated with exit code 0xC000013A (STATUS_CONTROL_C_EXIT) and loses any output it had not written yet. Hold on to this half until the child has exited — or close it deliberately to end a session that ignores everything else.

AsyncWriteExt::shutdown is that deliberate close: it never blocks, it cancels a write still in flight rather than flushing it, and it makes later writes fail with io::ErrorKind::BrokenPipe; shutting down again is a no-op. Dropping this half closes the pipe the same way. One caveat: with an overlapped write in flight, the OS handle closes only once the runtime’s I/O driver has retired the cancelled operation, so the console host observes the close after the driver’s next poll — one poll, not an unbounded wait for the host to drain the pipe.

Trait Implementations

impl AsyncWrite for OwnedWriteHalf

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<()>>

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

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

Initiates or attempts to shut down this writer, returning success when the I/O connection has completely shut down.

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

Like poll_write, except that it writes from a slice of buffers.

fn is_write_vectored(&self) -> bool

Determines if this writer has an efficient poll_write_vectored implementation.

impl Debug for OwnedWriteHalf

Deliberately opaque: nothing but the conin pipe handle lives here.

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

Formats the value using the given formatter.