Struct ChainModes 

pub struct ChainModes { /* private fields */ }

The per-chain ListeningModes tracked by a local node, together with a memoized Hashed of the fully-tracked subset.

The hash is the version of the outbox index (see ChainStateView::outbox_index_tracked_hash). Caching it here — recomputed only when a chain newly becomes FullChain, which is rare and client-side — lets every cross-chain operation compare and reconcile the index in O(1) instead of rehashing the tracked set each time.

Implementations

impl ChainModes

pub fn new(modes: BTreeMap<ChainId, ListeningMode>) -> Self

Builds the listening modes from modes, computing the tracked-set hash once.

pub fn full(&self) -> Arc<Hashed<ChainIdSet>>

The fully-tracked chains together with their memoized hash (O(1) clone).

pub fn get(&self, chain_id: &ChainId) -> Option<&ListeningMode>

Returns the listening mode for chain_id, if it is tracked.

pub fn extend_mode( &mut self, chain_id: ChainId, mode: ListeningMode, ) -> ListeningMode

Merges mode into the entry for chain_id — monotonic in the listening-mode order, so it never weakens an existing entry — and returns the resulting mode. The tracked-set hash is recomputed only if the chain newly became FullChain.

Trait Implementations

impl Debug for ChainModes

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

Formats the value using the given formatter.

impl Default for ChainModes

fn default() -> Self

Returns the “default value” for a type.