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
Converts to this type from the input type.
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
Converts to this type from the input type.
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
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 moresource§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 moresource§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 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