Struct ChildStderr 

pub struct ChildStderr<M = Local>
where
    M: Mode,
{ /* private fields */ }

The pipe from a child’s standard error, to read from.

Child::stderr holds it if the command asked for Stdio::piped(). It is the async counterpart of std::process::ChildStderr, and is read exactly like the pipe of the standard output, ChildStdout: see there for how reads wait, where the pipe ends, and what the type parameter means.

A child that writes a lot to both its output and its error blocks once one of the pipes is full, until that pipe is read. A task that reads one pipe to its end before the other waits forever if the child is stuck on the other pipe. Read both pipes at the same time, as Child::output does.

Implementations

impl<M> ChildStderr<M>

where M: Mode,

pub async fn into_stdio(self) -> Result<Stdio>

Converts the pipe into a Stdio for the standard input of another child.

It works as ChildStdout::into_stdio does, for the pipe of the standard error.

Trait Implementations

impl<M> AsyncRead for ChildStderr<M>

where M: Mode,

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<M> Debug for ChildStderr<M>

where M: Mode,

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

Formats the value using the given formatter.