Enum SupervisionStrategy 

pub enum SupervisionStrategy {
    OneForOne {
        max_restarts: u32,
        within: Duration,
    },
    OneForAll {
        max_restarts: u32,
        within: Duration,
    },
    RestForOne {
        max_restarts: u32,
        within: Duration,
    },
    SimpleOneForOne,
}

How a supervisor should handle child failures.

Variants

OneForOne

Restart only the failed child.

When a child crashes, only that child is restarted. Other children are unaffected.

Fields

max_restarts: u32

Maximum number of restarts allowed within the time window.

within: Duration

Time window for counting restarts.

OneForAll

Restart all children when one fails.

When a child crashes, all children are terminated and restarted. Use when children are tightly coupled.

Fields

max_restarts: u32

Maximum number of restarts allowed within the time window.

within: Duration

Time window for counting restarts.

RestForOne

Restart failed child and those started after it.

When a child crashes, that child and all children started after it are terminated and restarted. Children started before are unaffected. Use for dependent chains of actors.

Fields

max_restarts: u32

Maximum number of restarts allowed within the time window.

within: Duration

Time window for counting restarts.

SimpleOneForOne

Don’t restart, just acknowledge failure.

No automatic restart is performed. Useful for dynamic, temporary children where failures are expected.

Implementations

impl SupervisionStrategy

pub fn one_for_one(max_restarts: u32, within: Duration) -> Self

Create a one-for-one strategy.

pub fn one_for_all(max_restarts: u32, within: Duration) -> Self

Create a one-for-all strategy.

pub fn rest_for_one(max_restarts: u32, within: Duration) -> Self

Create a rest-for-one strategy.

pub fn simple_one_for_one() -> Self

Create a simple one-for-one strategy.

Trait Implementations

impl Clone for SupervisionStrategy

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SupervisionStrategy

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

Formats the value using the given formatter.

impl Default for SupervisionStrategy

fn default() -> Self

Returns the “default value” for a type.

impl Eq for SupervisionStrategy

impl PartialEq for SupervisionStrategy

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SupervisionStrategy