Struct sc_client_api::leaves::LeafSet[][src]

pub struct LeafSet<H, N> { /* fields omitted */ }
Expand description

list of leaf hashes ordered by number (descending). stored in memory for fast access. this allows very fast checking and modification of active leaves.

Implementations

Construct a new, blank leaf set.

Read the leaf list from the DB, using given prefix for keys.

update the leaf list on import. returns a displaced leaf if there was one.

Note a block height finalized, displacing all leaves with number less than the finalized block’s.

Although it would be more technically correct to also prune out leaves at the same number as the finalized block, but with different hashes, the current behavior is simpler and our assumptions about how finalization works means that those leaves will be pruned soon afterwards anyway.

Undo all pending operations.

This returns an Undo struct, where any Displaced objects that have returned by previous method calls should be passed to via the appropriate methods. Otherwise, the on-disk state may get out of sync with in-memory state.

Revert to the given block height by dropping all leaves in the leaf set with a block number higher than the target.

returns an iterator over all hashes in the leaf set ordered by their block number descending.

Number of known leaves

Write the leaf list to the database transaction.

Check if given block is a leaf.

Trait Implementations

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This method tests for !=.

Auto Trait Implementations

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