Enum RestartPolicy 

#[non_exhaustive]
pub enum RestartPolicy {
    Always,
    OnCrash,
    Never,
}

When the supervisor restarts an exited child. See each variant; in every case stop_when and max_restarts can end supervision first.

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.

Always

Restart after every completed run, clean or not.

OnCrash

Restart only after a crash — a run that is not a success (ProcessResult::is_success): an exit code outside the accepted set (the command’s ok_codes, default {0}), a timeout, a signal kill, or a failure to spawn. A successful run (an accepted exit code) ends supervision — so a command with ok_codes([0, 2]) exiting 2 is treated as clean, not a crash.

Never

Never restart: run the child once and report its outcome.

Trait Implementations

impl Clone for RestartPolicy

fn clone(&self) -> RestartPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RestartPolicy

impl Debug for RestartPolicy

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

Formats the value using the given formatter.

impl Eq for RestartPolicy

impl PartialEq for RestartPolicy

fn eq(&self, other: &RestartPolicy) -> 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 StructuralPartialEq for RestartPolicy