Struct async_std::process::ChildStdout [−][src]
pub struct ChildStdout(_);
Expand description
A handle to a child process’s standard output (stdout).
When a ChildStdout
is dropped, the underlying handle gets closed.
Implementations
Convert async_process::ChildStdout into std::process::Stdio.
You can use it to associate to the next process.
Examples
use async_process::Command;
use std::process::Stdio;
use std::io::Read;
use futures_lite::AsyncReadExt;
let mut ls_child = Command::new("ls").stdout(Stdio::piped()).spawn()?;
let stdio:Stdio = ls_child.stdout.take().unwrap().into_stdio().await?;
let mut echo_child = Command::new("echo").stdin(stdio).stdout(Stdio::piped()).spawn()?;
let mut buf = vec![];
echo_child.stdout.take().unwrap().read(&mut buf).await;
Trait Implementations
Attempt to read from the AsyncRead
into buf
. Read more
Auto Trait Implementations
impl RefUnwindSafe for ChildStdout
impl Send for ChildStdout
impl Sync for ChildStdout
impl Unpin for ChildStdout
impl UnwindSafe for ChildStdout
Blanket Implementations
Reads some bytes from the byte stream. Read more
fn read_vectored(
&'a mut self,
bufs: &'a mut [IoSliceMut<'a>]
) -> ReadVectoredFuture<'a, Self>ⓘNotable traits for ReadVectoredFuture<'_, R>impl<'_, R> Future for ReadVectoredFuture<'_, R> where
R: AsyncRead + Unpin + ?Sized, type Output = Result<usize, Error>;
where
Self: Unpin,
fn read_vectored(
&'a mut self,
bufs: &'a mut [IoSliceMut<'a>]
) -> ReadVectoredFuture<'a, Self>ⓘNotable traits for ReadVectoredFuture<'_, R>impl<'_, R> Future for ReadVectoredFuture<'_, R> where
R: AsyncRead + Unpin + ?Sized, type Output = Result<usize, Error>;
where
Self: Unpin,
Notable traits for ReadVectoredFuture<'_, R>
impl<'_, R> Future for ReadVectoredFuture<'_, R> where
R: AsyncRead + Unpin + ?Sized, type Output = Result<usize, Error>;
fn read_to_end(
&'a mut self,
buf: &'a mut Vec<u8, Global>
) -> ReadToEndFuture<'a, Self>ⓘNotable traits for ReadToEndFuture<'_, R>impl<'_, R> Future for ReadToEndFuture<'_, R> where
R: AsyncRead + Unpin + ?Sized, type Output = Result<usize, Error>;
where
Self: Unpin,
fn read_to_end(
&'a mut self,
buf: &'a mut Vec<u8, Global>
) -> ReadToEndFuture<'a, Self>ⓘNotable traits for ReadToEndFuture<'_, R>impl<'_, R> Future for ReadToEndFuture<'_, R> where
R: AsyncRead + Unpin + ?Sized, type Output = Result<usize, Error>;
where
Self: Unpin,
Notable traits for ReadToEndFuture<'_, R>
impl<'_, R> Future for ReadToEndFuture<'_, R> where
R: AsyncRead + Unpin + ?Sized, type Output = Result<usize, Error>;
fn read_to_string(
&'a mut self,
buf: &'a mut String
) -> ReadToStringFuture<'a, Self>ⓘNotable traits for ReadToStringFuture<'_, R>impl<'_, R> Future for ReadToStringFuture<'_, R> where
R: AsyncRead + Unpin + ?Sized, type Output = Result<usize, Error>;
where
Self: Unpin,
fn read_to_string(
&'a mut self,
buf: &'a mut String
) -> ReadToStringFuture<'a, Self>ⓘNotable traits for ReadToStringFuture<'_, R>impl<'_, R> Future for ReadToStringFuture<'_, R> where
R: AsyncRead + Unpin + ?Sized, type Output = Result<usize, Error>;
where
Self: Unpin,
Notable traits for ReadToStringFuture<'_, R>
impl<'_, R> Future for ReadToStringFuture<'_, R> where
R: AsyncRead + Unpin + ?Sized, type Output = Result<usize, Error>;
fn read_exact(&'a mut self, buf: &'a mut [u8]) -> ReadExactFuture<'a, Self>ⓘNotable traits for ReadExactFuture<'_, R>impl<'_, R> Future for ReadExactFuture<'_, R> where
R: AsyncRead + Unpin + ?Sized, type Output = Result<(), Error>;
where
Self: Unpin,
fn read_exact(&'a mut self, buf: &'a mut [u8]) -> ReadExactFuture<'a, Self>ⓘNotable traits for ReadExactFuture<'_, R>impl<'_, R> Future for ReadExactFuture<'_, R> where
R: AsyncRead + Unpin + ?Sized, type Output = Result<(), Error>;
where
Self: Unpin,
Notable traits for ReadExactFuture<'_, R>
impl<'_, R> Future for ReadExactFuture<'_, R> where
R: AsyncRead + Unpin + ?Sized, type Output = Result<(), Error>;
Reads the exact number of bytes required to fill buf
. Read more
Creates an adapter which will read at most limit
bytes from it. Read more
Creates an adapter which will chain this stream with another. Read more
Boxes the reader and changes its type to dyn AsyncRead + Send + 'a
. Read more
Mutably borrows from an owned value. Read more