# 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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.