Module bump_transaction

Utilities for bumping transactions originating from Events.

Structs

AnchorDescriptor

A descriptor used to sign for a commitment transaction’s anchor output.

BumpTransactionEventHandler

A handler for Event::BumpTransaction events that sources confirmed UTXOs from a CoinSelectionSource to fee bump transactions via Child-Pays-For-Parent (CPFP) or Replace-By-Fee (RBF).

CoinSelection

The result of a successful coin selection attempt for a transaction requiring additional UTXOs to cover its fees.

Input

An input that must be included in a transaction when performing coin selection through CoinSelectionSource::select_confirmed_utxos. It is guaranteed to be a SegWit input, so it must have an empty TxIn::script_sig when spent.

Utxo

An unspent transaction output that is available to spend resulting from a successful CoinSelection attempt.

Wallet

A wrapper over WalletSource that implements CoinSelection by preferring UTXOs that would avoid conflicting double spends. If not enough UTXOs are available to do so, conflicting double spends may happen.

Enums

BumpTransactionEvent

Represents the different types of transactions, originating from LDK, to be bumped.

Traits

CoinSelectionSource

An abstraction over a bitcoin wallet that can perform coin selection over a set of UTXOs and can sign for them. The coin selection method aims to mimic Bitcoin Core’s fundrawtransaction RPC, which most wallets should be able to satisfy. Otherwise, consider implementing WalletSource, which can provide a default implementation of this trait when used with Wallet.

WalletSource

An alternative to CoinSelectionSource that can be implemented and used along Wallet to provide a default implementation to CoinSelectionSource.