Enum UnixGracefulSignal 

#[non_exhaustive]
pub enum UnixGracefulSignal {
    Interrupt,
    Terminate,
}

Graceful-shutdown signal that can be the first or escalation step on Unix before the implicit SIGKILL fallback.

Marked #[non_exhaustive] so additional Unix signals (e.g. SIGHUP, SIGUSR1) can be added in future minor releases without forcing a breaking change on match users.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Interrupt

SIGINT. Default disposition is Term (kernel terminates the process when no handler is installed). Idiomatic Tokio applications using tokio::signal::ctrl_c() install a SIGINT handler, but service-style children (systemd, K8s, Docker) typically install only a SIGTERM handler, in which case the kernel default disposition kills the child without running the user’s shutdown logic.

Terminate

SIGTERM. Default disposition is Term (kernel terminates the process when no handler is installed). The conventional “please shut down” signal in Unix; what kill <pid> (no args) sends and what systemd, K8s, Docker, runit, and supervisord all use.

Trait Implementations

impl Clone for UnixGracefulSignal

fn clone(&self) -> UnixGracefulSignal

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UnixGracefulSignal

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

Formats the value using the given formatter.

impl PartialEq for UnixGracefulSignal

fn eq(&self, other: &UnixGracefulSignal) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for UnixGracefulSignal

impl Eq for UnixGracefulSignal

impl StructuralPartialEq for UnixGracefulSignal