Struct ProcessExitWatcher 

pub struct ProcessExitWatcher { /* private fields */ }

Observes the eventual exit code of a tracked process.

Processes terminated by a signal resolve to -1. If the reaper thread unexpectedly drops the notification, the failure is logged and also resolves to -1 to preserve the exec-session wire protocol.

Implementations

impl ProcessExitWatcher

pub fn identity(&self) -> ProcessIdentity

Returns the stable identity of the tracked process.

Trait Implementations

impl Future for ProcessExitWatcher

type Output = i32

The type of value produced on completion.

fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>

Attempts to resolve the future to a final value, registering the current task for wakeup if the value is not yet available.