--- /dev/null
+using org.ldk.impl;
+using org.ldk.enums;
+using org.ldk.util;
+using System;
+
+namespace org { namespace ldk { namespace structs {
+
+/**
+ * The `Confirm` trait is used to notify LDK when relevant transactions have been confirmed on
+ * chain or unconfirmed during a chain reorganization.
+ *
+ * Clients sourcing chain data using a transaction-oriented API should prefer this interface over
+ * [`Listen`]. For instance, an Electrum-based transaction sync implementation may implement
+ * [`Filter`] to subscribe to relevant transactions and unspent outputs it should monitor for
+ * on-chain activity. Then, it needs to notify LDK via this interface upon observing any changes
+ * with reference to the confirmation status of the monitored objects.
+ *
+ * # Use
+ * The intended use is as follows:
+ * - Call [`transactions_confirmed`] to notify LDK whenever any of the registered transactions or
+ * outputs are, respectively, confirmed or spent on chain.
+ * - Call [`transaction_unconfirmed`] to notify LDK whenever any transaction returned by
+ * [`get_relevant_txids`] is no longer confirmed in the block with the given block hash.
+ * - Call [`best_block_updated`] to notify LDK whenever a new chain tip becomes available.
+ *
+ * # Order
+ *
+ * Clients must call these methods in chain order. Specifically:
+ * - Transactions which are confirmed in a particular block must be given before transactions
+ * confirmed in a later block.
+ * - Dependent transactions within the same block must be given in topological order, possibly in
+ * separate calls.
+ * - All unconfirmed transactions must be given after the original confirmations and before *any*
+ * reconfirmations, i.e., [`transactions_confirmed`] and [`transaction_unconfirmed`] calls should
+ * never be interleaved, but always conduced *en bloc*.
+ * - Any reconfirmed transactions need to be explicitly unconfirmed before they are reconfirmed
+ * in regard to the new block.
+ *
+ * See individual method documentation for further details.
+ *
+ * [`transactions_confirmed`]: Self::transactions_confirmed
+ * [`transaction_unconfirmed`]: Self::transaction_unconfirmed
+ * [`best_block_updated`]: Self::best_block_updated
+ * [`get_relevant_txids`]: Self::get_relevant_txids
+ */
+public class Confirm : CommonBase {
+ internal readonly bindings.LDKConfirm bindings_instance;
+ internal Confirm(object _dummy, long ptr) : base(ptr) { bindings_instance = null; }
+ private Confirm(bindings.LDKConfirm arg) : base(bindings.LDKConfirm_new(arg)) {
+ this.ptrs_to.AddLast(arg);
+ this.bindings_instance = arg;
+ }
+ ~Confirm() {
+ if (ptr != 0) { bindings.Confirm_free(ptr); }
+ }
+
+ 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.
+ *
+ * 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_TxidBlockHashZ[] get_relevant_txids();
+ }
+ private class LDKConfirmHolder { internal Confirm held; }
+ private class LDKConfirmImpl : bindings.LDKConfirm {
+ internal LDKConfirmImpl(ConfirmInterface arg, LDKConfirmHolder impl_holder) { this.arg = arg; this.impl_holder = impl_holder; }
+ private ConfirmInterface arg;
+ private LDKConfirmHolder impl_holder;
+ public void transactions_confirmed(byte[] _header, long[] _txdata, int _height) {
+ int _txdata_conv_28_len = _txdata.Length;
+ TwoTuple_usizeTransactionZ[] _txdata_conv_28_arr = new TwoTuple_usizeTransactionZ[_txdata_conv_28_len];
+ for (int c = 0; c < _txdata_conv_28_len; c++) {
+ long _txdata_conv_28 = _txdata[c];
+ TwoTuple_usizeTransactionZ _txdata_conv_28_hu_conv = new TwoTuple_usizeTransactionZ(null, _txdata_conv_28);
+ if (_txdata_conv_28_hu_conv != null) { _txdata_conv_28_hu_conv.ptrs_to.AddLast(this); };
+ _txdata_conv_28_arr[c] = _txdata_conv_28_hu_conv;
+ }
+ arg.transactions_confirmed(_header, _txdata_conv_28_arr, _height);
+ GC.KeepAlive(arg);
+ }
+ public void transaction_unconfirmed(byte[] _txid) {
+ arg.transaction_unconfirmed(_txid);
+ GC.KeepAlive(arg);
+ }
+ public void best_block_updated(byte[] _header, int _height) {
+ arg.best_block_updated(_header, _height);
+ GC.KeepAlive(arg);
+ }
+ public long[] get_relevant_txids() {
+ TwoTuple_TxidBlockHashZ[] ret = arg.get_relevant_txids();
+ GC.KeepAlive(arg);
+ long[] result = ret != null ? InternalUtils.mapArray(ret, ret_conv_25 => ret_conv_25 == null ? 0 : ret_conv_25.clone_ptr()) : null;
+ return result;
+ }
+ }
+ public static Confirm new_impl(ConfirmInterface arg) {
+ LDKConfirmHolder impl_holder = new LDKConfirmHolder();
+ impl_holder.held = new Confirm(new LDKConfirmImpl(arg, impl_holder));
+ return impl_holder.held;
+ }
+ /**
+ * 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
+ */
+ public void transactions_confirmed(byte[] header, TwoTuple_usizeTransactionZ[] txdata, int height) {
+ bindings.Confirm_transactions_confirmed(this.ptr, InternalUtils.check_arr_len(header, 80), txdata != null ? InternalUtils.mapArray(txdata, txdata_conv_28 => txdata_conv_28 != null ? txdata_conv_28.ptr : 0) : null, height);
+ GC.KeepAlive(this);
+ GC.KeepAlive(header);
+ GC.KeepAlive(txdata);
+ GC.KeepAlive(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
+ */
+ public void transaction_unconfirmed(byte[] txid) {
+ bindings.Confirm_transaction_unconfirmed(this.ptr, InternalUtils.check_arr_len(txid, 32));
+ GC.KeepAlive(this);
+ GC.KeepAlive(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.
+ */
+ public void best_block_updated(byte[] header, int height) {
+ bindings.Confirm_best_block_updated(this.ptr, InternalUtils.check_arr_len(header, 80), height);
+ GC.KeepAlive(this);
+ GC.KeepAlive(header);
+ GC.KeepAlive(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.
+ *
+ * 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
+ */
+ public TwoTuple_TxidBlockHashZ[] get_relevant_txids() {
+ long[] ret = bindings.Confirm_get_relevant_txids(this.ptr);
+ GC.KeepAlive(this);
+ int ret_conv_25_len = ret.Length;
+ TwoTuple_TxidBlockHashZ[] ret_conv_25_arr = new TwoTuple_TxidBlockHashZ[ret_conv_25_len];
+ for (int z = 0; z < ret_conv_25_len; z++) {
+ long ret_conv_25 = ret[z];
+ TwoTuple_TxidBlockHashZ ret_conv_25_hu_conv = new TwoTuple_TxidBlockHashZ(null, ret_conv_25);
+ if (ret_conv_25_hu_conv != null) { ret_conv_25_hu_conv.ptrs_to.AddLast(this); };
+ ret_conv_25_arr[z] = ret_conv_25_hu_conv;
+ }
+ return ret_conv_25_arr;
+ }
+
+}
+} } }
projects / ldk-java / blobdiff