Enum ExitReason 

pub enum ExitReason {
    Normal,
    Killed,
    Panic(String),
    Shutdown,
    Custom(String),
}

Reason for actor termination.

Exit reasons indicate why an actor stopped. They are used to determine whether a supervisor should restart a failed actor.

Examples

use joerl::ExitReason;

let normal = ExitReason::Normal;
assert!(normal.is_normal());
assert!(normal.is_trappable());

let killed = ExitReason::Killed;
assert!(!killed.is_normal());
assert!(!killed.is_trappable()); // Cannot be trapped

let panic = ExitReason::Panic("something went wrong".to_string());
assert!(!panic.is_normal());
assert_eq!(panic.to_string(), "panic: something went wrong");

Variants

Normal

Normal termination.

Killed

Actor was killed explicitly.

Panic(String)

Actor panicked with an error message.

Shutdown

Actor terminated due to supervisor shutdown.

Custom(String)

Custom exit reason.

Implementations

impl ExitReason

pub fn is_normal(&self) -> bool

Returns true if this is a normal exit.

Normal exits typically don’t trigger restarts in supervisors.

Examples

use joerl::ExitReason;

assert!(ExitReason::Normal.is_normal());
assert!(!ExitReason::Killed.is_normal());
assert!(!ExitReason::Panic("error".into()).is_normal());

pub fn is_trappable(&self) -> bool

Returns true if this exit reason can be trapped.

Actors with trap_exit(true) can handle trappable exit signals without terminating. The Killed reason cannot be trapped.

Examples

use joerl::ExitReason;

assert!(ExitReason::Normal.is_trappable());
assert!(ExitReason::Panic("error".into()).is_trappable());
assert!(!ExitReason::Killed.is_trappable()); // Cannot be trapped

Trait Implementations

impl Clone for ExitReason

fn clone(&self) -> ExitReason

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExitReason

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

Formats the value using the given formatter.

impl Display for ExitReason

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

Formats the value using the given formatter.

impl PartialEq for ExitReason

fn eq(&self, other: &ExitReason) -> 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 Eq for ExitReason

impl StructuralPartialEq for ExitReason