Struct WorkerUnavailable 

pub struct WorkerUnavailable {
    pub reason: QueueServiceReason,
    pub clock: Option<ExpiredClock>,
    pub waited: Duration,
    pub address: ServiceAddress,
    pub census: PoolCensus,
}

A typed dispatch refusal: the taxonomy reason, which clock expired (if any), how long the dispatch waited, and the live poller census behind the verdict. Never a generic timeout, never a bare string.

Fields

reason: QueueServiceReason

Taxonomy state of the queue at refusal time.

clock: Option<ExpiredClock>

The clock whose expiry produced the refusal, or None for a structural refusal (which needs no clock).

waited: Duration

How long this dispatch waited before refusing.

address: ServiceAddress

Pool address that could not be served.

census: PoolCensus

Live poller census at refusal time.

Implementations

impl WorkerUnavailable

pub const fn is_retryable(&self) -> bool

Whether the engine’s retry executor should treat this failure as retryable.

Structural unservability is terminal: no retry can conjure a deployment that declares the queue. Every other reason is a transient fleet condition (a worker may connect, backpressure may drain), so it carries the retryable prefix and the workflow’s own declared retry policy — or its absence — decides what happens next. No retry budget is invented here.

pub fn reason_string(&self) -> String

The failure string handed back at the engine dispatch seam.

pub fn parse(failure: &str) -> Option<UnavailableSummary>

Read the typed head back out of a dispatch failure string.

Returns None for any failure that is not a queue-service refusal, so surfacing code can ask “is this a WorkerUnavailable?” without string sniffing.

Trait Implementations

impl Clone for WorkerUnavailable

fn clone(&self) -> WorkerUnavailable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WorkerUnavailable

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

Formats the value using the given formatter.

impl Display for WorkerUnavailable

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

Formats the value using the given formatter.

impl Eq for WorkerUnavailable

impl PartialEq for WorkerUnavailable

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for WorkerUnavailable