+
+
+/** An implementation of Confirm */
+public interface ConfirmInterface {
+ /**Notifies LDK of transactions confirmed in a block with a given header and height.
+ *
+ * Must be called for any transactions registered by [`Filter::register_tx`] or any
+ * transactions spending an output registered by [`Filter::register_output`]. Such transactions
+ * appearing in the same block do not need to be included in the same call; instead, multiple
+ * calls with additional transactions may be made so long as they are made in [chain order].
+ *
+ * May be called before or after [`best_block_updated`] for the corresponding block. However,
+ * in the event of a chain reorganization, it must not be called with a `header` that is no
+ * longer in the chain as of the last call to [`best_block_updated`].
+ *
+ * [chain order]: Confirm#order
+ * [`best_block_updated`]: Self::best_block_updated
+ */
+ void transactions_confirmed(byte[] header, TwoTuple_usizeTransactionZ[] txdata, int height);
+ /**Notifies LDK of a transaction that is no longer confirmed as result of a chain reorganization.
+ *
+ * Must be called for any transaction returned by [`get_relevant_txids`] if it has been
+ * reorganized out of the best chain or if it is no longer confirmed in the block with the
+ * given block hash. Once called, the given transaction will not be returned
+ * by [`get_relevant_txids`], unless it has been reconfirmed via [`transactions_confirmed`].
+ *
+ * [`get_relevant_txids`]: Self::get_relevant_txids
+ * [`transactions_confirmed`]: Self::transactions_confirmed
+ */
+ void transaction_unconfirmed(byte[] txid);
+ /**Notifies LDK of an update to the best header connected at the given height.
+ *
+ * Must be called whenever a new chain tip becomes available. May be skipped for intermediary
+ * blocks.
+ */
+ void best_block_updated(byte[] header, int height);
+ /**Returns transactions that must be monitored for reorganization out of the chain along
+ * with the hash of the block as part of which it had been previously confirmed.
+ *
+ * Note that the returned `Option<BlockHash>` might be `None` for channels created with LDK
+ * 0.0.112 and prior, in which case you need to manually track previous confirmations.
+ *
+ * Will include any transactions passed to [`transactions_confirmed`] that have insufficient
+ * confirmations to be safe from a chain reorganization. Will not include any transactions
+ * passed to [`transaction_unconfirmed`], unless later reconfirmed.
+ *
+ * Must be called to determine the subset of transactions that must be monitored for
+ * reorganization. Will be idempotent between calls but may change as a result of calls to the
+ * other interface methods. Thus, this is useful to determine which transactions must be
+ * given to [`transaction_unconfirmed`].
+ *
+ * If any of the returned transactions are confirmed in a block other than the one with the
+ * given hash, they need to be unconfirmed and reconfirmed via [`transaction_unconfirmed`] and
+ * [`transactions_confirmed`], respectively.
+ *
+ * [`transactions_confirmed`]: Self::transactions_confirmed
+ * [`transaction_unconfirmed`]: Self::transaction_unconfirmed
+ */
+ TwoTuple_ThirtyTwoBytesCOption_ThirtyTwoBytesZZ[] get_relevant_txids();
+}
+