New creates a new tip-selector.

TipCaller is used to signal tip events.

WalkerStatsCaller is used to signal tip selection events.

ScoreLazy is a lazy tip and should not be selected.

ScoreNonLazy is a non-lazy tip.

ScoreSemiLazy is a somewhat lazy tip.

ErrNoTipsAvailable is returned when no tips are available in the node.

ErrTipLazy is returned when the chosen tip was lazy already.

Events represents events happening on the tip-selector.

Tip defines a tip.

TipSelector manages a list of tips and emits events for their removal and addition.

TipSelStats holds the stats for a tipselection run.

Score defines the score of a tip.

TipSelectionFunc is a function which performs a tipselection and returns tips.