Struct Stdin

pub struct Stdin { /* private fields */ }

Available on crate feature io-std only.

A handle to the standard input stream of a process.

The handle implements the AsyncRead trait, but beware that concurrent reads of Stdin must be executed with care.

As an additional caveat, reading from the handle may block the calling future indefinitely if there is not enough data available. This makes this handle unsuitable for use in any circumstance where immediate reaction to available data is required, e.g. interactive use or when implementing a subprocess driven by requests on the standard input.

Created by the stdin function.

Trait Implementations

impl AsyncRead for Stdin

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

Attempt to read from the AsyncRead into buf.

unsafe fn prepare_uninitialized_buffer( &self, buf: &mut [MaybeUninit<u8>], ) -> bool

Prepares an uninitialized buffer to be safe to pass to read. Returns true if the supplied buffer was zeroed out.

fn poll_read_buf<B: BufMut>( self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &mut B, ) -> Poll<Result<usize>>

where Self: Sized,

Pull some bytes from this source into the specified BufMut, returning how many bytes were read.

impl Debug for Stdin

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

Formats the value using the given formatter.