Struct Process Lease Authority &nbsp; Copy item path

impl ProcessLeaseAuthority

pub fn new( store: Arc<dyn ObjectStore>, ttl: Duration, ) -> Result<Self, ProcessLeaseError>

Bind all stable-node lease namespaces on one shared object store and TTL.

§Errors

Rejects a zero, sub-millisecond, fractional-millisecond, or oversized TTL.

pub fn store_for(&self, node: NodeId) -> Arc<ProcessLeaseStore> ⓘ

Open one stable-node namespace over the shared authority.

pub fn fencing_deadline( &self, io_budget: Duration, ) -> Result<Instant, ProcessLeaseError>

Build a monotonic deadline that covers the mandatory full-TTL observation plus bounded authority I/O. Callers need not duplicate the process-lease TTL as another runtime knob.

§Errors

Rejects a zero I/O budget or monotonic-clock overflow.

pub async fn fence_incarnation( &self, participant: CheckpointParticipant, deadline: Instant, ) -> Result<ProcessLeaseFence, ProcessLeaseError>

Durably supersede an unchanged process incarnation after observing it for one full TTL.

A retry after the create-only takeover won reconstructs the exact fence from the two retained history records. It never waits a second TTL for that already-durable result.

§Errors

Fails closed on renewal, deadline expiry, missing history, or any authority I/O failure.

pub async fn verify_current_participant( &self, participant: CheckpointParticipant, deadline: Instant, ) -> Result<bool, ProcessLeaseError>

Verify that an exact boot incarnation is the current durable owner of its stable node.

§Errors

Fails closed on deadline expiry, missing takeover evidence, malformed state, or I/O.

pub async fn verify_current_participant_term( &self, participant: CheckpointParticipant, process_term: u64, deadline: Instant, ) -> Result<bool, ProcessLeaseError>

Verify an exact boot and process term against the current durable stable-node authority.

§Errors

Fails closed on deadline expiry, missing takeover evidence, malformed state, or I/O.

pub async fn verify_fence( &self, fence: &ProcessLeaseFence, deadline: Instant, ) -> Result<bool, ProcessLeaseError>

Verify that both exact fence records remain present and the fenced owner is not current.

§Errors

Fails closed on deadline expiry, missing history, malformed records, or authority I/O.

Trait Implementations§

impl Debug for ProcessLeaseAuthority

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl UnsafeUnpin for ProcessLeaseAuthority

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