Module epoch_membership 

Epoch Membership wrappers

Structs

AttemptEntry 🔒

Holds an epoch’s place in an Attempts map for as long as its owner is driving it.

Attempts 🔒

The in-flight attempts of one kind of work, keyed by the epoch they serve.

DrbStateGuard 🔒

Owns one computation’s entry in drb_computations. Dropping it releases the claim and fires the token it held.

EpochMembership

Wrapper around a membership that holds a captured snapshot for a given epoch (or the pre-epoch state). All accessors observe one consistent view because the snapshot is held inline.

EpochMembershipCoordinator

Struct to Coordinate membership catchup

Enums

EpochMembershipSnapshot 🔒

Constants

DEFAULT_CATCHUP_TIMEOUT 🔒

Default upper bound on a single catchup step.

Type Aliases

Attempt 🔒

One in-flight attempt, shared by every caller that asks for the same epoch while it runs. Whoever polls it drives it, so it outlives the task that started it as long as somebody is still waiting.

DrbComputations 🔒

The in-flight DRB computations, each with the token that stops it. An entry is the claim on its epoch: one computation runs per epoch, and the next may start only once the entry is gone.

Result 🔒

Snapshot 🔒

The per-epoch snapshot type associated with T::Membership.

SnapshotStakeTableHash 🔒

The stake-table hash type associated with T::Membership’s per-epoch snapshot.