Trait tracing_core::stdlib::os::linux::process::ChildExt

source · 
pub trait ChildExt: Sealed {
    // Required methods
    fn pidfd(&self) -> Result<&PidFd, Error>;
    fn into_pidfd(self) -> Result<PidFd, Self>
       where Self: Sized;
}
🔬This is a nightly-only experimental API. (linux_pidfd #82971)
Available on Linux only.
Expand description

Os-specific extensions for Child

Required Methods§

source

fn pidfd(&self) -> Result<&PidFd, Error>

🔬This is a nightly-only experimental API. (linux_pidfd #82971)

Obtains a reference to the PidFd created for this Child, if available.

A pidfd will only be available if its creation was requested with create_pidfd when the corresponding Command was created.

Even if requested, a pidfd may not be available due to an older version of Linux being in use, or if some other error occurred.

source

fn into_pidfd(self) -> Result<PidFd, Self>
where Self: Sized,

🔬This is a nightly-only experimental API. (linux_pidfd #82971)

Returns the PidFd created for this Child, if available. Otherwise self is returned.

A pidfd will only be available if its creation was requested with create_pidfd when the corresponding Command was created.

Taking ownership of the PidFd consumes the Child to avoid pid reuse races. Use pidfd and BorrowedFd::try_clone_to_owned if you don’t want to disassemble the Child yet.

Even if requested, a pidfd may not be available due to an older version of Linux being in use, or if some other error occurred.

Implementors§