async_pidfd

Struct PidFd

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pub struct PidFd(/* private fields */);
Expand description

A process file descriptor.

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impl PidFd

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pub fn from_pid(pid: pid_t) -> Result<Self>

Create a process file descriptor from a PID.

You can get a process ID from std::process::Child by calling Child::id.

As long as this process has not yet waited on the child process, and has not blocked SIGCHLD, the process ID will not get reused, so it does not matter if the child process has already exited.

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pub fn wait(&self) -> Result<ExitInfo>

Wait for the process to complete.

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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

Auto Trait Implementations§

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impl Freeze for PidFd

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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

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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> AsSource for T
where T: AsFd,

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

Returns the borrowed file descriptor.
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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more