init(blockChecked:powValidBlock:blockConnected:blockDisconnected:)

Creates validation interface callbacks.

init(blockChecked: ((Block, BlockValidationState) -> Void)? = nil, powValidBlock: ((Block, BlockTreeEntrySnapshot) -> Void)? = nil, blockConnected: ((Block, BlockTreeEntrySnapshot) -> Void)? = nil, blockDisconnected: ((Block, BlockTreeEntrySnapshot) -> Void)? = nil)

Parameters

blockChecked: Handler for blocks that have been fully validated. See blockChecked.
powValidBlock: Handler for blocks with valid proof-of-work added to the header chain. See powValidBlock.
blockConnected: Handler for blocks connected to the best chain. See blockConnected.
blockDisconnected: Handler for blocks removed from the best chain during a re-org. See blockDisconnected.

Discussion

Set only the callbacks you need; unset callbacks are ignored. All closures are captured at init time and cannot be changed later.