Struct std::process::ChildStdin
1.0.0 · source · pub struct ChildStdin { /* private fields */ }
Expand description
A handle to a child process’s standard input (stdin).
This struct is used in the stdin
field on Child
.
When an instance of ChildStdin
is dropped, the ChildStdin
’s underlying
file handle will be closed. If the child process was blocked on input prior
to being dropped, it will become unblocked after dropping.
Trait Implementations§
1.63.0 · source§impl AsFd for ChildStdin
Available on Unix only.
impl AsFd for ChildStdin
Available on Unix only.
source§fn as_fd(&self) -> BorrowedFd<'_>
fn as_fd(&self) -> BorrowedFd<'_>
Borrows the file descriptor. Read more
1.63.0 · source§impl AsHandle for ChildStdin
Available on Windows only.
impl AsHandle for ChildStdin
Available on Windows only.
source§fn as_handle(&self) -> BorrowedHandle<'_>
fn as_handle(&self) -> BorrowedHandle<'_>
Borrows the handle. Read more
1.2.0 · source§impl AsRawFd for ChildStdin
Available on Unix only.
impl AsRawFd for ChildStdin
Available on Unix only.
1.2.0 · source§impl AsRawHandle for ChildStdin
Available on Windows only.
impl AsRawHandle for ChildStdin
Available on Windows only.
source§fn as_raw_handle(&self) -> RawHandle
fn as_raw_handle(&self) -> RawHandle
Extracts the raw handle. Read more
1.16.0 · source§impl Debug for ChildStdin
impl Debug for ChildStdin
1.63.0 · source§impl From<ChildStdin> for OwnedFd
Available on Unix only.
impl From<ChildStdin> for OwnedFd
Available on Unix only.
source§fn from(child_stdin: ChildStdin) -> OwnedFd
fn from(child_stdin: ChildStdin) -> OwnedFd
Converts to this type from the input type.
1.63.0 · source§impl From<ChildStdin> for OwnedHandle
Available on Windows only.
impl From<ChildStdin> for OwnedHandle
Available on Windows only.
source§fn from(child_stdin: ChildStdin) -> OwnedHandle
fn from(child_stdin: ChildStdin) -> OwnedHandle
Converts to this type from the input type.
1.20.0 · source§impl From<ChildStdin> for Stdio
impl From<ChildStdin> for Stdio
source§fn from(child: ChildStdin) -> Stdio
fn from(child: ChildStdin) -> Stdio
Converts a ChildStdin
into a Stdio
.
§Examples
ChildStdin
will be converted to Stdio
using Stdio::from
under the hood.
use std::process::{Command, Stdio};
let reverse = Command::new("rev")
.stdin(Stdio::piped())
.spawn()
.expect("failed reverse command");
let _echo = Command::new("echo")
.arg("Hello, world!")
.stdout(reverse.stdin.unwrap()) // Converted into a Stdio here
.output()
.expect("failed echo command");
// "!dlrow ,olleH" echoed to console
Run1.74.0 · source§impl From<OwnedFd> for ChildStdin
Available on Unix only.
impl From<OwnedFd> for ChildStdin
Available on Unix only.
Create a ChildStdin
from the provided OwnedFd
.
The provided file descriptor must point to a pipe
with the CLOEXEC
flag set.
1.74.0 · source§impl From<OwnedHandle> for ChildStdin
Available on Windows only.
impl From<OwnedHandle> for ChildStdin
Available on Windows only.
Create a ChildStdin
from the provided OwnedHandle
.
The provided handle must be asynchronous, as reading and writing from and to it is implemented using asynchronous APIs.
source§fn from(handle: OwnedHandle) -> ChildStdin ⓘ
fn from(handle: OwnedHandle) -> ChildStdin ⓘ
Converts to this type from the input type.
1.4.0 · source§impl IntoRawFd for ChildStdin
Available on Unix only.
impl IntoRawFd for ChildStdin
Available on Unix only.
source§fn into_raw_fd(self) -> RawFd
fn into_raw_fd(self) -> RawFd
Consumes this object, returning the raw underlying file descriptor. Read more
1.4.0 · source§impl IntoRawHandle for ChildStdin
Available on Windows only.
impl IntoRawHandle for ChildStdin
Available on Windows only.
source§fn into_raw_handle(self) -> RawHandle
fn into_raw_handle(self) -> RawHandle
Consumes this object, returning the raw underlying handle. Read more
1.48.0 · source§impl Write for &ChildStdin
impl Write for &ChildStdin
source§fn write(&mut self, buf: &[u8]) -> Result<usize>
fn write(&mut self, buf: &[u8]) -> Result<usize>
Write a buffer into this writer, returning how many bytes were written. Read more
source§fn is_write_vectored(&self) -> bool
fn is_write_vectored(&self) -> bool
🔬This is a nightly-only experimental API. (
can_vector
#69941)source§fn flush(&mut self) -> Result<()>
fn flush(&mut self) -> Result<()>
Flush this output stream, ensuring that all intermediately buffered
contents reach their destination. Read more
source§fn write_all(&mut self, buf: &[u8]) -> Result<()>
fn write_all(&mut self, buf: &[u8]) -> Result<()>
Attempts to write an entire buffer into this writer. Read more
source§fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<()>
fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<()>
🔬This is a nightly-only experimental API. (
write_all_vectored
#70436)Attempts to write multiple buffers into this writer. Read more
source§impl Write for ChildStdin
impl Write for ChildStdin
source§fn write(&mut self, buf: &[u8]) -> Result<usize>
fn write(&mut self, buf: &[u8]) -> Result<usize>
Write a buffer into this writer, returning how many bytes were written. Read more
source§fn is_write_vectored(&self) -> bool
fn is_write_vectored(&self) -> bool
🔬This is a nightly-only experimental API. (
can_vector
#69941)source§fn flush(&mut self) -> Result<()>
fn flush(&mut self) -> Result<()>
Flush this output stream, ensuring that all intermediately buffered
contents reach their destination. Read more
source§fn write_all(&mut self, buf: &[u8]) -> Result<()>
fn write_all(&mut self, buf: &[u8]) -> Result<()>
Attempts to write an entire buffer into this writer. Read more
source§fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<()>
fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<()>
🔬This is a nightly-only experimental API. (
write_all_vectored
#70436)Attempts to write multiple buffers into this writer. Read more
Auto Trait Implementations§
impl RefUnwindSafe for ChildStdin
impl Send for ChildStdin
impl Sync for ChildStdin
impl Unpin for ChildStdin
impl UnwindSafe for ChildStdin
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more