Struct TimerEntry 

pub struct TimerEntry {
    pub workflow_id: WorkflowId,
    pub timer_id: TimerId,
    pub fire_at: DateTime<Utc>,
    pub armed_seq: u64,
}

Durable timer record returned by crate::ReadableEventStore::expired_timers.

Fields

workflow_id: WorkflowId

Workflow that owns the timer.

timer_id: TimerId

Timer identifier within the owning workflow.

fire_at: DateTime<Utc>

Instant at which the timer is due to fire.

armed_seq: u64

The workflow-history sequence of the TimerStarted event that armed this row, or 0 for an arming that records no TimerStarted (the schedule coordinator’s trigger timers — sequence numbers start at 1, so 0 can never collide with a recorded arming).

This is the row-identity component that makes value-conditional retirement discriminate a RE-ARM TO THE IDENTICAL INSTANT: without it, a named timer re-armed to the same fire_at encodes byte-identically to the consumed arming, so a stale retirement deletes the live replacement’s row — and a past-due replacement is never re-armed by the boot sweep (which only restores future armings), a permanently lost wake. Every re-arm records a new TimerStarted with a strictly higher sequence, so (fire_at, armed_seq) is unique per arming. The store treats the value as an opaque identity component: it never orders or interprets it.

serde(default): a pre-0.25 store’s rows carry no armed_seq, and a decoder that refuses them bricks the boot of every upgraded server — the 2026-08-26 v0.25.0 upgrade failure, hit on the first real store this release met. 0 is the documented no-recorded-arming value, so a legacy row decodes to a valid identity. A legacy row’s BYTES still predate this field, so value-conditional retirement must also accept the legacy encoding; the store backends own that half.

Trait Implementations

impl Clone for TimerEntry

fn clone(&self) -> TimerEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TimerEntry

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TimerEntry

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for TimerEntry

impl Hash for TimerEntry

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for TimerEntry

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for TimerEntry

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for TimerEntry