Struct std::process::ChildStderr
1.0.0 · source · pub struct ChildStderr { /* private fields */ }
Expand description
Trait Implementations§
1.63.0 · source§impl AsFd for ChildStderr
Available on Unix only.
impl AsFd for ChildStderr
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 ChildStderr
Available on Windows only.
impl AsHandle for ChildStderr
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 ChildStderr
Available on Unix only.
impl AsRawFd for ChildStderr
Available on Unix only.
1.2.0 · source§impl AsRawHandle for ChildStderr
Available on Windows only.
impl AsRawHandle for ChildStderr
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 ChildStderr
impl Debug for ChildStderr
1.63.0 · source§impl From<ChildStderr> for OwnedFd
Available on Unix only.
impl From<ChildStderr> for OwnedFd
Available on Unix only.
source§fn from(child_stderr: ChildStderr) -> OwnedFd
fn from(child_stderr: ChildStderr) -> OwnedFd
Takes ownership of a ChildStderr
’s file descriptor.
1.63.0 · source§impl From<ChildStderr> for OwnedHandle
Available on Windows only.
impl From<ChildStderr> for OwnedHandle
Available on Windows only.
source§fn from(child_stderr: ChildStderr) -> OwnedHandle
fn from(child_stderr: ChildStderr) -> OwnedHandle
Takes ownership of a ChildStderr
’s file handle.
1.20.0 · source§impl From<ChildStderr> for Stdio
impl From<ChildStderr> for Stdio
source§fn from(child: ChildStderr) -> Stdio
fn from(child: ChildStderr) -> Stdio
Converts a ChildStderr
into a Stdio
.
§Examples
use std::process::{Command, Stdio};
let reverse = Command::new("rev")
.arg("non_existing_file.txt")
.stderr(Stdio::piped())
.spawn()
.expect("failed reverse command");
let cat = Command::new("cat")
.arg("-")
.stdin(reverse.stderr.unwrap()) // Converted into a Stdio here
.output()
.expect("failed echo command");
assert_eq!(
String::from_utf8_lossy(&cat.stdout),
"rev: cannot open non_existing_file.txt: No such file or directory\n"
);
Run1.74.0 · source§impl From<OwnedFd> for ChildStderr
Available on Unix only.
impl From<OwnedFd> for ChildStderr
Available on Unix only.
Create a ChildStderr
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 ChildStderr
Available on Windows only.
impl From<OwnedHandle> for ChildStderr
Available on Windows only.
Create a ChildStderr
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) -> ChildStderr ⓘ
fn from(handle: OwnedHandle) -> ChildStderr ⓘ
Converts to this type from the input type.
1.4.0 · source§impl IntoRawFd for ChildStderr
Available on Unix only.
impl IntoRawFd for ChildStderr
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 ChildStderr
Available on Windows only.
impl IntoRawHandle for ChildStderr
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
1.0.0 · source§impl Read for ChildStderr
impl Read for ChildStderr
source§fn read(&mut self, buf: &mut [u8]) -> Result<usize>
fn read(&mut self, buf: &mut [u8]) -> Result<usize>
Pull some bytes from this source into the specified buffer, returning
how many bytes were read. Read more
source§fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<()>
fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<()>
🔬This is a nightly-only experimental API. (
read_buf
#78485)Pull some bytes from this source into the specified buffer. Read more
source§fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize>
fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize>
Like
read
, except that it reads into a slice of buffers. Read moresource§fn is_read_vectored(&self) -> bool
fn is_read_vectored(&self) -> bool
🔬This is a nightly-only experimental API. (
can_vector
#69941)source§fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>
Read all bytes until EOF in this source, placing them into
buf
. Read more1.0.0 · source§fn read_to_string(&mut self, buf: &mut String) -> Result<usize>
fn read_to_string(&mut self, buf: &mut String) -> Result<usize>
Read all bytes until EOF in this source, appending them to
buf
. Read more1.6.0 · source§fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>
fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>
Read the exact number of bytes required to fill
buf
. Read moresource§fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<()>
fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<()>
🔬This is a nightly-only experimental API. (
read_buf
#78485)Read the exact number of bytes required to fill
cursor
. Read more1.0.0 · source§fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
Creates a “by reference” adaptor for this instance of
Read
. Read moreAuto Trait Implementations§
impl Freeze for ChildStderr
impl RefUnwindSafe for ChildStderr
impl Send for ChildStderr
impl Sync for ChildStderr
impl Unpin for ChildStderr
impl UnwindSafe for ChildStderr
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