Enum LeaseError 

pub enum LeaseError {
    Held {
        agent_id: String,
        holder: String,
        epoch: u64,
        expires_at_ms: u64,
    },
    Lost {
        agent_id: String,
        claimed_epoch: u64,
        current_epoch: u64,
    },
    Backend(String),
}

A lease-coordination failure.

Variants

Held

LeaseCoordinator::acquire found a still-valid lease held by another (or the same) device — CAS failed. The proposal: “acquire succeeds only if unheld or expired.”

Fields

agent_id: String

holder: String

epoch: u64

expires_at_ms: u64

Lost

LeaseCoordinator::renew/LeaseCoordinator::release found the caller is no longer the holder at the claimed epoch — someone stole it (a higher epoch exists), or it was already released. The fencing-relevant signal: a zombie that can reach the coordinator learns here that it lost.

Fields

agent_id: String

claimed_epoch: u64

The epoch the caller claimed to hold.

current_epoch: u64

The coordinator’s current epoch for the agent (0 if never held).

Backend(String)

The coordinator backend itself failed — a distributed coordinator (e.g. crate::net_relay::NetworkLeaseCoordinator) could not reach the lease register or got an unusable reply. Distinct from Held/Lost, which are legitimate CAS verdicts, not failures. The in-process InMemoryLeaseCoordinator never returns this.

Trait Implementations

impl Clone for LeaseError

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 LeaseError

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

Formats the value using the given formatter.

impl Display for LeaseError

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

Formats the value using the given formatter.

impl Eq for LeaseError

impl Error for LeaseError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<LeaseError> for SessionError

fn from(e: LeaseError) -> Self

Converts to this type from the input type.

impl PartialEq for LeaseError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for LeaseError