Struct tokio_process::ChildStdout

pub struct ChildStdout { /* fields omitted */ }

The standard output stream for spawned children.

This type implements the Read trait to read data from the stdout handle of a child process. Note that this type is also “futures aware” meaning that it is both (a) nonblocking and (b) will panic if used off of a future’s task.

Trait Implementations

impl AsRawFd for ChildStdout

fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor.

impl AsyncRead for ChildStdout

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

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

pub fn poll_read(&mut self, buf: &mut [u8]) -> Result<Async<usize>, Error>

Attempt to read from the AsyncRead into buf.

pub fn read_buf<B>(&mut self, buf: &mut B) -> Result<Async<usize>, Error> where
    B: BufMut, 

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

pub fn framed<T>(self, codec: T) -> Framed<Self, T> where
    Self: AsyncWrite,
    T: Encoder + Decoder, 

👎 Deprecated since 0.1.7:

Use tokio_codec::Decoder::framed instead

Provides a Stream and Sink interface for reading and writing to this I/O object, using Decode and Encode to read and write the raw data.

pub fn split(self) -> (ReadHalf<Self>, WriteHalf<Self>) where
    Self: AsyncWrite, 

Helper method for splitting this read/write object into two halves.

impl Debug for ChildStdout

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

Formats the value using the given formatter.

impl Read for ChildStdout

fn read(&mut self, bytes: &mut [u8]) -> Result<usize>

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

pub fn read_vectored(
    &mut self,
    bufs: &mut [IoSliceMut<'_>]
) -> Result<usize, Error>

Like read, except that it reads into a slice of buffers.

pub fn is_read_vectored(&self) -> bool

🔬 This is a nightly-only experimental API. (can_vector)

Determines if this Reader has an efficient read_vectored implementation.

pub unsafe fn initializer(&self) -> Initializer

🔬 This is a nightly-only experimental API. (read_initializer)

Determines if this Reader can work with buffers of uninitialized memory.

pub fn read_to_end(&mut self, buf: &mut Vec<u8, Global>) -> Result<usize, Error>

Read all bytes until EOF in this source, placing them into buf.

pub fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>

Read all bytes until EOF in this source, appending them to buf.

pub fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>

Read the exact number of bytes required to fill buf.

pub fn by_ref(&mut self) -> &mut Self

Creates a “by reference” adaptor for this instance of Read.

pub fn bytes(self) -> Bytes<Self>

Transforms this Read instance to an Iterator over its bytes.

pub fn chain<R>(self, next: R) -> Chain<Self, R> where
    R: Read, 

Creates an adaptor which will chain this stream with another.

pub fn take(self, limit: u64) -> Take<Self>

Creates an adaptor which will read at most limit bytes from it.