Struct std::os::linux::process::PidFd

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pub struct PidFd { /* private fields */ }
🔬This is a nightly-only experimental API. (linux_pidfd #82971)
Available on Linux only.
Expand description

This type represents a file descriptor that refers to a process.

A PidFd can be obtained by setting the corresponding option on Command with create_pidfd. Subsequently, the created pidfd can be retrieved from the Child by calling pidfd or take_pidfd.

Example:

#![feature(linux_pidfd)]
use std::os::linux::process::{CommandExt, ChildExt};
use std::process::Command;

let mut child = Command::new("echo")
    .create_pidfd(true)
    .spawn()
    .expect("Failed to spawn child");

let pidfd = child
    .take_pidfd()
    .expect("Failed to retrieve pidfd");

// The file descriptor will be closed when `pidfd` is dropped.
Run

Refer to the man page of pidfd_open(2) for further details.

Trait Implementations§

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impl AsFd for PidFd

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

Borrows the file descriptor. Read more
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impl AsRawFd for PidFd

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fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor. Read more
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impl Debug for PidFd

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

Formats the value using the given formatter. Read more
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impl From<OwnedFd> for PidFd

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fn from(fd: OwnedFd) -> Self

Converts to this type from the input type.
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impl From<PidFd> for OwnedFd

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fn from(pid_fd: PidFd) -> Self

Converts to this type from the input type.
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impl FromRawFd for PidFd

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unsafe fn from_raw_fd(fd: RawFd) -> Self

Constructs a new instance of Self from the given raw file descriptor. Read more
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impl IntoRawFd for PidFd

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fn into_raw_fd(self) -> RawFd

Consumes this object, returning the raw underlying file descriptor. Read more

Auto Trait Implementations§

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impl RefUnwindSafe for PidFd

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impl Send for PidFd

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impl Sync for PidFd

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impl Unpin for PidFd

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impl UnwindSafe for PidFd

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.