Struct tokio::process::ChildStdout

pub struct ChildStdout { /* private fields */ }

Available on crate feature process only.

Expand description

The standard output stream for spawned children.

This type implements the AsyncRead trait to read data from the stdout handle of a child process asynchronously.

Implementations§

impl ChildStdout

pub fn from_std(inner: ChildStdout) -> Result<Self>

Creates an asynchronous ChildStdout from a synchronous one.

Errors

This method may fail if an error is encountered when setting the pipe to non-blocking mode, or when registering the pipe with the runtime’s IO driver.

Trait Implementations§

impl AsFd for ChildStdout

fn as_fd(&self) -> BorrowedFd<'_>

Borrows the file descriptor. Read more

impl AsHandle for ChildStdout

Available on Windows only.

fn as_handle(&self) -> BorrowedHandle<'_>

See std::os::windows::io::AsHandle::as_handle

impl AsRawFd for ChildStdout

fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor. Read more

impl AsRawHandle for ChildStdout

Available on Windows only.

fn as_raw_handle(&self) -> RawHandle

See std::os::windows::io::AsRawHandle::as_raw_handle

impl AsyncRead for ChildStdout

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

Attempts to read from the AsyncRead into buf. Read more

impl Debug for ChildStdout

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

Formats the value using the given formatter. Read more

impl TryInto<Stdio> for ChildStdout

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Stdio, Self::Error>

Performs the conversion.

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§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<R> AsyncReadExt for Rwhere R: AsyncRead + ?Sized,

fn chain<R>(self, next: R) -> Chain<Self, R>where Self: Sized, R: AsyncRead,

Available on crate feature io-util only.

Creates a new AsyncRead instance that chains this stream with next. Read more

fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Read<'a, Self>where Self: Unpin,

Available on crate feature io-util only.

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

fn read_buf<'a, B>(&'a mut self, buf: &'a mut B) -> ReadBuf<'a, Self, B>where Self: Sized + Unpin, B: BufMut,

Available on crate feature io-util only.

Pulls some bytes from this source into the specified buffer, advancing the buffer’s internal cursor. Read more

fn read_exact<'a>(&'a mut self, buf: &'a mut [u8]) -> ReadExact<'a, Self>where Self: Unpin,

Available on crate feature io-util only.

Reads the exact number of bytes required to fill buf. Read more

fn read_u8<'a>(&'a mut self) -> ReadU8<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an unsigned 8 bit integer from the underlying reader. Read more

fn read_i8<'a>(&'a mut self) -> ReadI8<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads a signed 8 bit integer from the underlying reader. Read more

fn read_u16<'a>(&'a mut self) -> ReadU16<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an unsigned 16-bit integer in big-endian order from the underlying reader. Read more

fn read_i16<'a>(&'a mut self) -> ReadI16<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads a signed 16-bit integer in big-endian order from the underlying reader. Read more

fn read_u32<'a>(&'a mut self) -> ReadU32<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an unsigned 32-bit integer in big-endian order from the underlying reader. Read more

fn read_i32<'a>(&'a mut self) -> ReadI32<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads a signed 32-bit integer in big-endian order from the underlying reader. Read more

fn read_u64<'a>(&'a mut self) -> ReadU64<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an unsigned 64-bit integer in big-endian order from the underlying reader. Read more

fn read_i64<'a>(&'a mut self) -> ReadI64<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an signed 64-bit integer in big-endian order from the underlying reader. Read more

fn read_u128<'a>(&'a mut self) -> ReadU128<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an unsigned 128-bit integer in big-endian order from the underlying reader. Read more

fn read_i128<'a>(&'a mut self) -> ReadI128<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an signed 128-bit integer in big-endian order from the underlying reader. Read more

fn read_f32<'a>(&'a mut self) -> ReadF32<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an 32-bit floating point type in big-endian order from the underlying reader. Read more

fn read_f64<'a>(&'a mut self) -> ReadF64<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an 64-bit floating point type in big-endian order from the underlying reader. Read more

fn read_u16_le<'a>(&'a mut self) -> ReadU16Le<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an unsigned 16-bit integer in little-endian order from the underlying reader. Read more

fn read_i16_le<'a>(&'a mut self) -> ReadI16Le<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads a signed 16-bit integer in little-endian order from the underlying reader. Read more

fn read_u32_le<'a>(&'a mut self) -> ReadU32Le<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an unsigned 32-bit integer in little-endian order from the underlying reader. Read more

fn read_i32_le<'a>(&'a mut self) -> ReadI32Le<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads a signed 32-bit integer in little-endian order from the underlying reader. Read more

fn read_u64_le<'a>(&'a mut self) -> ReadU64Le<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an unsigned 64-bit integer in little-endian order from the underlying reader. Read more

fn read_i64_le<'a>(&'a mut self) -> ReadI64Le<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an signed 64-bit integer in little-endian order from the underlying reader. Read more

fn read_u128_le<'a>(&'a mut self) -> ReadU128Le<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an unsigned 128-bit integer in little-endian order from the underlying reader. Read more

fn read_i128_le<'a>(&'a mut self) -> ReadI128Le<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an signed 128-bit integer in little-endian order from the underlying reader. Read more

fn read_f32_le<'a>(&'a mut self) -> ReadF32Le<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an 32-bit floating point type in little-endian order from the underlying reader. Read more

fn read_f64_le<'a>(&'a mut self) -> ReadF64Le<&'a mut Self>where Self: Unpin,

Available on crate feature io-util only.

Reads an 64-bit floating point type in little-endian order from the underlying reader. Read more

fn read_to_end<'a>(&'a mut self, buf: &'a mut Vec<u8>) -> ReadToEnd<'a, Self>where Self: Unpin,

Available on crate feature io-util only.

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

fn read_to_string<'a>( &'a mut self, dst: &'a mut String ) -> ReadToString<'a, Self>where Self: Unpin,

Available on crate feature io-util only.

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

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

Available on crate feature io-util only.

Creates an adaptor which reads at most limit bytes from it. Read more

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘwhere S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more