_ Git - ldk-java/blob - src/main/java/org/ldk/structs/ChannelMonitor.java

   1 package org.ldk.structs;
   2
   3 import org.ldk.impl.bindings;
   4 import org.ldk.enums.*;
   5 import org.ldk.util.*;
   6 import java.util.Arrays;
   7 import java.lang.ref.Reference;
   8 import javax.annotation.Nullable;
   9
  10
  11 /**
  12  * A ChannelMonitor handles chain events (blocks connected and disconnected) and generates
  13  * on-chain transactions to ensure no loss of funds occurs.
  14  *
  15  * You MUST ensure that no ChannelMonitors for a given channel anywhere contain out-of-date
  16  * information and are actively monitoring the chain.
  17  *
  18  * Note that the deserializer is only implemented for (BlockHash, ChannelMonitor), which
  19  * tells you the last block hash which was block_connect()ed. You MUST rescan any blocks along
  20  * the \"reorg path\" (ie disconnecting blocks until you find a common ancestor from both the
  21  * returned block hash and the the current chain and then reconnecting blocks to get to the
  22  * best chain) upon deserializing the object!
  23  */
  24 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
  25 public class ChannelMonitor extends CommonBase {
  26         ChannelMonitor(Object _dummy, long ptr) { super(ptr); }
  27         @Override @SuppressWarnings("deprecation")
  28         protected void finalize() throws Throwable {
  29                 super.finalize();
  30                 if (ptr != 0) { bindings.ChannelMonitor_free(ptr); }
  31         }
  32
  33         long clone_ptr() {
  34                 long ret = bindings.ChannelMonitor_clone_ptr(this.ptr);
  35                 Reference.reachabilityFence(this);
  36                 return ret;
  37         }
  38
  39         /**
  40          * Creates a copy of the ChannelMonitor
  41          */
  42         public ChannelMonitor clone() {
  43                 long ret = bindings.ChannelMonitor_clone(this.ptr);
  44                 Reference.reachabilityFence(this);
  45                 if (ret >= 0 && ret <= 4096) { return null; }
  46                 org.ldk.structs.ChannelMonitor ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.ChannelMonitor(null, ret); }
  47                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
  48                 return ret_hu_conv;
  49         }
  50
  51         /**
  52          * Serialize the ChannelMonitor object into a byte array which can be read by ChannelMonitor_read
  53          */
  54         public byte[] write() {
  55                 byte[] ret = bindings.ChannelMonitor_write(this.ptr);
  56                 Reference.reachabilityFence(this);
  57                 return ret;
  58         }
  59
  60         /**
  61          * Updates a ChannelMonitor on the basis of some new information provided by the Channel
  62          * itself.
  63          *
  64          * panics if the given update is not the next update by update_id.
  65          */
  66         public Result_NoneNoneZ update_monitor(org.ldk.structs.ChannelMonitorUpdate updates, org.ldk.structs.BroadcasterInterface broadcaster, org.ldk.structs.FeeEstimator fee_estimator, org.ldk.structs.Logger logger) {
  67                 long ret = bindings.ChannelMonitor_update_monitor(this.ptr, updates.ptr, broadcaster.ptr, fee_estimator.ptr, logger.ptr);
  68                 Reference.reachabilityFence(this);
  69                 Reference.reachabilityFence(updates);
  70                 Reference.reachabilityFence(broadcaster);
  71                 Reference.reachabilityFence(fee_estimator);
  72                 Reference.reachabilityFence(logger);
  73                 if (ret >= 0 && ret <= 4096) { return null; }
  74                 Result_NoneNoneZ ret_hu_conv = Result_NoneNoneZ.constr_from_ptr(ret);
  75                 if (this != null) { this.ptrs_to.add(updates); };
  76                 if (this != null) { this.ptrs_to.add(broadcaster); };
  77                 if (this != null) { this.ptrs_to.add(fee_estimator); };
  78                 if (this != null) { this.ptrs_to.add(logger); };
  79                 return ret_hu_conv;
  80         }
  81
  82         /**
  83          * Gets the update_id from the latest ChannelMonitorUpdate which was applied to this
  84          * ChannelMonitor.
  85          */
  86         public long get_latest_update_id() {
  87                 long ret = bindings.ChannelMonitor_get_latest_update_id(this.ptr);
  88                 Reference.reachabilityFence(this);
  89                 return ret;
  90         }
  91
  92         /**
  93          * Gets the funding transaction outpoint of the channel this ChannelMonitor is monitoring for.
  94          */
  95         public TwoTuple_OutPointCVec_u8ZZ get_funding_txo() {
  96                 long ret = bindings.ChannelMonitor_get_funding_txo(this.ptr);
  97                 Reference.reachabilityFence(this);
  98                 if (ret >= 0 && ret <= 4096) { return null; }
  99                 TwoTuple_OutPointCVec_u8ZZ ret_hu_conv = new TwoTuple_OutPointCVec_u8ZZ(null, ret);
 100                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
 101                 return ret_hu_conv;
 102         }
 103
 104         /**
 105          * Gets the channel_id of the channel this ChannelMonitor is monitoring for.
 106          */
 107         public ChannelId channel_id() {
 108                 long ret = bindings.ChannelMonitor_channel_id(this.ptr);
 109                 Reference.reachabilityFence(this);
 110                 if (ret >= 0 && ret <= 4096) { return null; }
 111                 org.ldk.structs.ChannelId ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.ChannelId(null, ret); }
 112                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
 113                 return ret_hu_conv;
 114         }
 115
 116         /**
 117          * Gets a list of txids, with their output scripts (in the order they appear in the
 118          * transaction), which we must learn about spends of via block_connected().
 119          */
 120         public TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32CVec_u8ZZZZ[] get_outputs_to_watch() {
 121                 long[] ret = bindings.ChannelMonitor_get_outputs_to_watch(this.ptr);
 122                 Reference.reachabilityFence(this);
 123                 int ret_conv_52_len = ret.length;
 124                 TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32CVec_u8ZZZZ[] ret_conv_52_arr = new TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32CVec_u8ZZZZ[ret_conv_52_len];
 125                 for (int a = 0; a < ret_conv_52_len; a++) {
 126                         long ret_conv_52 = ret[a];
 127                         TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32CVec_u8ZZZZ ret_conv_52_hu_conv = new TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32CVec_u8ZZZZ(null, ret_conv_52);
 128                         if (ret_conv_52_hu_conv != null) { ret_conv_52_hu_conv.ptrs_to.add(this); };
 129                         ret_conv_52_arr[a] = ret_conv_52_hu_conv;
 130                 }
 131                 return ret_conv_52_arr;
 132         }
 133
 134         /**
 135          * Loads the funding txo and outputs to watch into the given `chain::Filter` by repeatedly
 136          * calling `chain::Filter::register_output` and `chain::Filter::register_tx` until all outputs
 137          * have been registered.
 138          */
 139         public void load_outputs_to_watch(org.ldk.structs.Filter filter, org.ldk.structs.Logger logger) {
 140                 bindings.ChannelMonitor_load_outputs_to_watch(this.ptr, filter.ptr, logger.ptr);
 141                 Reference.reachabilityFence(this);
 142                 Reference.reachabilityFence(filter);
 143                 Reference.reachabilityFence(logger);
 144                 if (this != null) { this.ptrs_to.add(filter); };
 145                 if (this != null) { this.ptrs_to.add(logger); };
 146         }
 147
 148         /**
 149          * Get the list of HTLCs who's status has been updated on chain. This should be called by
 150          * ChannelManager via [`chain::Watch::release_pending_monitor_events`].
 151          */
 152         public MonitorEvent[] get_and_clear_pending_monitor_events() {
 153                 long[] ret = bindings.ChannelMonitor_get_and_clear_pending_monitor_events(this.ptr);
 154                 Reference.reachabilityFence(this);
 155                 int ret_conv_14_len = ret.length;
 156                 MonitorEvent[] ret_conv_14_arr = new MonitorEvent[ret_conv_14_len];
 157                 for (int o = 0; o < ret_conv_14_len; o++) {
 158                         long ret_conv_14 = ret[o];
 159                         org.ldk.structs.MonitorEvent ret_conv_14_hu_conv = org.ldk.structs.MonitorEvent.constr_from_ptr(ret_conv_14);
 160                         if (ret_conv_14_hu_conv != null) { ret_conv_14_hu_conv.ptrs_to.add(this); };
 161                         ret_conv_14_arr[o] = ret_conv_14_hu_conv;
 162                 }
 163                 return ret_conv_14_arr;
 164         }
 165
 166         /**
 167          * Processes [`SpendableOutputs`] events produced from each [`ChannelMonitor`] upon maturity.
 168          *
 169          * For channels featuring anchor outputs, this method will also process [`BumpTransaction`]
 170          * events produced from each [`ChannelMonitor`] while there is a balance to claim onchain
 171          * within each channel. As the confirmation of a commitment transaction may be critical to the
 172          * safety of funds, we recommend invoking this every 30 seconds, or lower if running in an
 173          * environment with spotty connections, like on mobile.
 174          *
 175          * An [`EventHandler`] may safely call back to the provider, though this shouldn't be needed in
 176          * order to handle these events.
 177          *
 178          * [`SpendableOutputs`]: crate::events::Event::SpendableOutputs
 179          * [`BumpTransaction`]: crate::events::Event::BumpTransaction
 180          */
 181         public void process_pending_events(org.ldk.structs.EventHandler handler) {
 182                 bindings.ChannelMonitor_process_pending_events(this.ptr, handler.ptr);
 183                 Reference.reachabilityFence(this);
 184                 Reference.reachabilityFence(handler);
 185                 if (this != null) { this.ptrs_to.add(handler); };
 186         }
 187
 188         /**
 189          * Gets the counterparty's initial commitment transaction. The returned commitment
 190          * transaction is unsigned. This is intended to be called during the initial persistence of
 191          * the monitor (inside an implementation of [`Persist::persist_new_channel`]), to allow for
 192          * watchtowers in the persistence pipeline to have enough data to form justice transactions.
 193          *
 194          * This is similar to [`Self::counterparty_commitment_txs_from_update`], except
 195          * that for the initial commitment transaction, we don't have a corresponding update.
 196          *
 197          * This will only return `Some` for channel monitors that have been created after upgrading
 198          * to LDK 0.0.117+.
 199          *
 200          * [`Persist::persist_new_channel`]: crate::chain::chainmonitor::Persist::persist_new_channel
 201          *
 202          * Note that the return value (or a relevant inner pointer) may be NULL or all-0s to represent None
 203          */
 204         @Nullable
 205         public CommitmentTransaction initial_counterparty_commitment_tx() {
 206                 long ret = bindings.ChannelMonitor_initial_counterparty_commitment_tx(this.ptr);
 207                 Reference.reachabilityFence(this);
 208                 if (ret >= 0 && ret <= 4096) { return null; }
 209                 org.ldk.structs.CommitmentTransaction ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.CommitmentTransaction(null, ret); }
 210                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
 211                 return ret_hu_conv;
 212         }
 213
 214         /**
 215          * Gets all of the counterparty commitment transactions provided by the given update. This
 216          * may be empty if the update doesn't include any new counterparty commitments. Returned
 217          * commitment transactions are unsigned.
 218          *
 219          * This is provided so that watchtower clients in the persistence pipeline are able to build
 220          * justice transactions for each counterparty commitment upon each update. It's intended to be
 221          * used within an implementation of [`Persist::update_persisted_channel`], which is provided
 222          * with a monitor and an update. Once revoked, signing a justice transaction can be done using
 223          * [`Self::sign_to_local_justice_tx`].
 224          *
 225          * It is expected that a watchtower client may use this method to retrieve the latest counterparty
 226          * commitment transaction(s), and then hold the necessary data until a later update in which
 227          * the monitor has been updated with the corresponding revocation data, at which point the
 228          * monitor can sign the justice transaction.
 229          *
 230          * This will only return a non-empty list for monitor updates that have been created after
 231          * upgrading to LDK 0.0.117+. Note that no restriction lies on the monitors themselves, which
 232          * may have been created prior to upgrading.
 233          *
 234          * [`Persist::update_persisted_channel`]: crate::chain::chainmonitor::Persist::update_persisted_channel
 235          */
 236         public CommitmentTransaction[] counterparty_commitment_txs_from_update(org.ldk.structs.ChannelMonitorUpdate update) {
 237                 long[] ret = bindings.ChannelMonitor_counterparty_commitment_txs_from_update(this.ptr, update.ptr);
 238                 Reference.reachabilityFence(this);
 239                 Reference.reachabilityFence(update);
 240                 int ret_conv_23_len = ret.length;
 241                 CommitmentTransaction[] ret_conv_23_arr = new CommitmentTransaction[ret_conv_23_len];
 242                 for (int x = 0; x < ret_conv_23_len; x++) {
 243                         long ret_conv_23 = ret[x];
 244                         org.ldk.structs.CommitmentTransaction ret_conv_23_hu_conv = null; if (ret_conv_23 < 0 || ret_conv_23 > 4096) { ret_conv_23_hu_conv = new org.ldk.structs.CommitmentTransaction(null, ret_conv_23); }
 245                         if (ret_conv_23_hu_conv != null) { ret_conv_23_hu_conv.ptrs_to.add(this); };
 246                         ret_conv_23_arr[x] = ret_conv_23_hu_conv;
 247                 }
 248                 if (this != null) { this.ptrs_to.add(update); };
 249                 return ret_conv_23_arr;
 250         }
 251
 252         /**
 253          * Wrapper around [`EcdsaChannelSigner::sign_justice_revoked_output`] to make
 254          * signing the justice transaction easier for implementors of
 255          * [`chain::chainmonitor::Persist`]. On success this method returns the provided transaction
 256          * signing the input at `input_idx`. This method will only produce a valid signature for
 257          * a transaction spending the `to_local` output of a commitment transaction, i.e. this cannot
 258          * be used for revoked HTLC outputs.
 259          *
 260          * `Value` is the value of the output being spent by the input at `input_idx`, committed
 261          * in the BIP 143 signature.
 262          *
 263          * This method will only succeed if this monitor has received the revocation secret for the
 264          * provided `commitment_number`. If a commitment number is provided that does not correspond
 265          * to the commitment transaction being revoked, this will return a signed transaction, but
 266          * the signature will not be valid.
 267          *
 268          * [`EcdsaChannelSigner::sign_justice_revoked_output`]: crate::sign::ecdsa::EcdsaChannelSigner::sign_justice_revoked_output
 269          * [`Persist`]: crate::chain::chainmonitor::Persist
 270          */
 271         public Result_TransactionNoneZ sign_to_local_justice_tx(byte[] justice_tx, long input_idx, long value, long commitment_number) {
 272                 long ret = bindings.ChannelMonitor_sign_to_local_justice_tx(this.ptr, justice_tx, input_idx, value, commitment_number);
 273                 Reference.reachabilityFence(this);
 274                 Reference.reachabilityFence(justice_tx);
 275                 Reference.reachabilityFence(input_idx);
 276                 Reference.reachabilityFence(value);
 277                 Reference.reachabilityFence(commitment_number);
 278                 if (ret >= 0 && ret <= 4096) { return null; }
 279                 Result_TransactionNoneZ ret_hu_conv = Result_TransactionNoneZ.constr_from_ptr(ret);
 280                 return ret_hu_conv;
 281         }
 282
 283         /**
 284          * Gets the `node_id` of the counterparty for this channel.
 285          *
 286          * Will be `None` for channels constructed on LDK versions prior to 0.0.110 and always `Some`
 287          * otherwise.
 288          *
 289          * Note that the return value (or a relevant inner pointer) may be NULL or all-0s to represent None
 290          */
 291         @Nullable
 292         public byte[] get_counterparty_node_id() {
 293                 byte[] ret = bindings.ChannelMonitor_get_counterparty_node_id(this.ptr);
 294                 Reference.reachabilityFence(this);
 295                 return ret;
 296         }
 297
 298         /**
 299          * You may use this to broadcast the latest local commitment transaction, either because
 300          * a monitor update failed or because we've fallen behind (i.e. we've received proof that our
 301          * counterparty side knows a revocation secret we gave them that they shouldn't know).
 302          *
 303          * Broadcasting these transactions in this manner is UNSAFE, as they allow counterparty
 304          * side to punish you. Nevertheless you may want to broadcast them if counterparty doesn't
 305          * close channel with their commitment transaction after a substantial amount of time. Best
 306          * may be to contact the other node operator out-of-band to coordinate other options available
 307          * to you.
 308          */
 309         public void broadcast_latest_holder_commitment_txn(org.ldk.structs.BroadcasterInterface broadcaster, org.ldk.structs.FeeEstimator fee_estimator, org.ldk.structs.Logger logger) {
 310                 bindings.ChannelMonitor_broadcast_latest_holder_commitment_txn(this.ptr, broadcaster.ptr, fee_estimator.ptr, logger.ptr);
 311                 Reference.reachabilityFence(this);
 312                 Reference.reachabilityFence(broadcaster);
 313                 Reference.reachabilityFence(fee_estimator);
 314                 Reference.reachabilityFence(logger);
 315                 if (this != null) { this.ptrs_to.add(broadcaster); };
 316                 if (this != null) { this.ptrs_to.add(fee_estimator); };
 317                 if (this != null) { this.ptrs_to.add(logger); };
 318         }
 319
 320         /**
 321          * Processes transactions in a newly connected block, which may result in any of the following:
 322          * - update the monitor's state against resolved HTLCs
 323          * - punish the counterparty in the case of seeing a revoked commitment transaction
 324          * - force close the channel and claim/timeout incoming/outgoing HTLCs if near expiration
 325          * - detect settled outputs for later spending
 326          * - schedule and bump any in-flight claims
 327          *
 328          * Returns any new outputs to watch from `txdata`; after called, these are also included in
 329          * [`get_outputs_to_watch`].
 330          *
 331          * [`get_outputs_to_watch`]: #method.get_outputs_to_watch
 332          */
 333         public TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[] block_connected(byte[] header, TwoTuple_usizeTransactionZ[] txdata, int height, org.ldk.structs.BroadcasterInterface broadcaster, org.ldk.structs.FeeEstimator fee_estimator, org.ldk.structs.Logger logger) {
 334                 long[] ret = bindings.ChannelMonitor_block_connected(this.ptr, InternalUtils.check_arr_len(header, 80), txdata != null ? Arrays.stream(txdata).mapToLong(txdata_conv_28 -> txdata_conv_28.ptr).toArray() : null, height, broadcaster.ptr, fee_estimator.ptr, logger.ptr);
 335                 Reference.reachabilityFence(this);
 336                 Reference.reachabilityFence(header);
 337                 Reference.reachabilityFence(txdata);
 338                 Reference.reachabilityFence(height);
 339                 Reference.reachabilityFence(broadcaster);
 340                 Reference.reachabilityFence(fee_estimator);
 341                 Reference.reachabilityFence(logger);
 342                 int ret_conv_49_len = ret.length;
 343                 TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[] ret_conv_49_arr = new TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[ret_conv_49_len];
 344                 for (int x = 0; x < ret_conv_49_len; x++) {
 345                         long ret_conv_49 = ret[x];
 346                         TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ ret_conv_49_hu_conv = new TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ(null, ret_conv_49);
 347                         if (ret_conv_49_hu_conv != null) { ret_conv_49_hu_conv.ptrs_to.add(this); };
 348                         ret_conv_49_arr[x] = ret_conv_49_hu_conv;
 349                 }
 350                 if (this != null) { this.ptrs_to.add(broadcaster); };
 351                 if (this != null) { this.ptrs_to.add(fee_estimator); };
 352                 if (this != null) { this.ptrs_to.add(logger); };
 353                 return ret_conv_49_arr;
 354         }
 355
 356         /**
 357          * Determines if the disconnected block contained any transactions of interest and updates
 358          * appropriately.
 359          */
 360         public void block_disconnected(byte[] header, int height, org.ldk.structs.BroadcasterInterface broadcaster, org.ldk.structs.FeeEstimator fee_estimator, org.ldk.structs.Logger logger) {
 361                 bindings.ChannelMonitor_block_disconnected(this.ptr, InternalUtils.check_arr_len(header, 80), height, broadcaster.ptr, fee_estimator.ptr, logger.ptr);
 362                 Reference.reachabilityFence(this);
 363                 Reference.reachabilityFence(header);
 364                 Reference.reachabilityFence(height);
 365                 Reference.reachabilityFence(broadcaster);
 366                 Reference.reachabilityFence(fee_estimator);
 367                 Reference.reachabilityFence(logger);
 368                 if (this != null) { this.ptrs_to.add(broadcaster); };
 369                 if (this != null) { this.ptrs_to.add(fee_estimator); };
 370                 if (this != null) { this.ptrs_to.add(logger); };
 371         }
 372
 373         /**
 374          * Processes transactions confirmed in a block with the given header and height, returning new
 375          * outputs to watch. See [`block_connected`] for details.
 376          *
 377          * Used instead of [`block_connected`] by clients that are notified of transactions rather than
 378          * blocks. See [`chain::Confirm`] for calling expectations.
 379          *
 380          * [`block_connected`]: Self::block_connected
 381          */
 382         public TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[] transactions_confirmed(byte[] header, TwoTuple_usizeTransactionZ[] txdata, int height, org.ldk.structs.BroadcasterInterface broadcaster, org.ldk.structs.FeeEstimator fee_estimator, org.ldk.structs.Logger logger) {
 383                 long[] ret = bindings.ChannelMonitor_transactions_confirmed(this.ptr, InternalUtils.check_arr_len(header, 80), txdata != null ? Arrays.stream(txdata).mapToLong(txdata_conv_28 -> txdata_conv_28.ptr).toArray() : null, height, broadcaster.ptr, fee_estimator.ptr, logger.ptr);
 384                 Reference.reachabilityFence(this);
 385                 Reference.reachabilityFence(header);
 386                 Reference.reachabilityFence(txdata);
 387                 Reference.reachabilityFence(height);
 388                 Reference.reachabilityFence(broadcaster);
 389                 Reference.reachabilityFence(fee_estimator);
 390                 Reference.reachabilityFence(logger);
 391                 int ret_conv_49_len = ret.length;
 392                 TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[] ret_conv_49_arr = new TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[ret_conv_49_len];
 393                 for (int x = 0; x < ret_conv_49_len; x++) {
 394                         long ret_conv_49 = ret[x];
 395                         TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ ret_conv_49_hu_conv = new TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ(null, ret_conv_49);
 396                         if (ret_conv_49_hu_conv != null) { ret_conv_49_hu_conv.ptrs_to.add(this); };
 397                         ret_conv_49_arr[x] = ret_conv_49_hu_conv;
 398                 }
 399                 if (this != null) { this.ptrs_to.add(broadcaster); };
 400                 if (this != null) { this.ptrs_to.add(fee_estimator); };
 401                 if (this != null) { this.ptrs_to.add(logger); };
 402                 return ret_conv_49_arr;
 403         }
 404
 405         /**
 406          * Processes a transaction that was reorganized out of the chain.
 407          *
 408          * Used instead of [`block_disconnected`] by clients that are notified of transactions rather
 409          * than blocks. See [`chain::Confirm`] for calling expectations.
 410          *
 411          * [`block_disconnected`]: Self::block_disconnected
 412          */
 413         public void transaction_unconfirmed(byte[] txid, org.ldk.structs.BroadcasterInterface broadcaster, org.ldk.structs.FeeEstimator fee_estimator, org.ldk.structs.Logger logger) {
 414                 bindings.ChannelMonitor_transaction_unconfirmed(this.ptr, InternalUtils.check_arr_len(txid, 32), broadcaster.ptr, fee_estimator.ptr, logger.ptr);
 415                 Reference.reachabilityFence(this);
 416                 Reference.reachabilityFence(txid);
 417                 Reference.reachabilityFence(broadcaster);
 418                 Reference.reachabilityFence(fee_estimator);
 419                 Reference.reachabilityFence(logger);
 420                 if (this != null) { this.ptrs_to.add(broadcaster); };
 421                 if (this != null) { this.ptrs_to.add(fee_estimator); };
 422                 if (this != null) { this.ptrs_to.add(logger); };
 423         }
 424
 425         /**
 426          * Updates the monitor with the current best chain tip, returning new outputs to watch. See
 427          * [`block_connected`] for details.
 428          *
 429          * Used instead of [`block_connected`] by clients that are notified of transactions rather than
 430          * blocks. See [`chain::Confirm`] for calling expectations.
 431          *
 432          * [`block_connected`]: Self::block_connected
 433          */
 434         public TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[] best_block_updated(byte[] header, int height, org.ldk.structs.BroadcasterInterface broadcaster, org.ldk.structs.FeeEstimator fee_estimator, org.ldk.structs.Logger logger) {
 435                 long[] ret = bindings.ChannelMonitor_best_block_updated(this.ptr, InternalUtils.check_arr_len(header, 80), height, broadcaster.ptr, fee_estimator.ptr, logger.ptr);
 436                 Reference.reachabilityFence(this);
 437                 Reference.reachabilityFence(header);
 438                 Reference.reachabilityFence(height);
 439                 Reference.reachabilityFence(broadcaster);
 440                 Reference.reachabilityFence(fee_estimator);
 441                 Reference.reachabilityFence(logger);
 442                 int ret_conv_49_len = ret.length;
 443                 TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[] ret_conv_49_arr = new TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[ret_conv_49_len];
 444                 for (int x = 0; x < ret_conv_49_len; x++) {
 445                         long ret_conv_49 = ret[x];
 446                         TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ ret_conv_49_hu_conv = new TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ(null, ret_conv_49);
 447                         if (ret_conv_49_hu_conv != null) { ret_conv_49_hu_conv.ptrs_to.add(this); };
 448                         ret_conv_49_arr[x] = ret_conv_49_hu_conv;
 449                 }
 450                 if (this != null) { this.ptrs_to.add(broadcaster); };
 451                 if (this != null) { this.ptrs_to.add(fee_estimator); };
 452                 if (this != null) { this.ptrs_to.add(logger); };
 453                 return ret_conv_49_arr;
 454         }
 455
 456         /**
 457          * Returns the set of txids that should be monitored for re-organization out of the chain.
 458          */
 459         public ThreeTuple_ThirtyTwoBytesu32COption_ThirtyTwoBytesZZ[] get_relevant_txids() {
 460                 long[] ret = bindings.ChannelMonitor_get_relevant_txids(this.ptr);
 461                 Reference.reachabilityFence(this);
 462                 int ret_conv_54_len = ret.length;
 463                 ThreeTuple_ThirtyTwoBytesu32COption_ThirtyTwoBytesZZ[] ret_conv_54_arr = new ThreeTuple_ThirtyTwoBytesu32COption_ThirtyTwoBytesZZ[ret_conv_54_len];
 464                 for (int c = 0; c < ret_conv_54_len; c++) {
 465                         long ret_conv_54 = ret[c];
 466                         ThreeTuple_ThirtyTwoBytesu32COption_ThirtyTwoBytesZZ ret_conv_54_hu_conv = new ThreeTuple_ThirtyTwoBytesu32COption_ThirtyTwoBytesZZ(null, ret_conv_54);
 467                         if (ret_conv_54_hu_conv != null) { ret_conv_54_hu_conv.ptrs_to.add(this); };
 468                         ret_conv_54_arr[c] = ret_conv_54_hu_conv;
 469                 }
 470                 return ret_conv_54_arr;
 471         }
 472
 473         /**
 474          * Gets the latest best block which was connected either via the [`chain::Listen`] or
 475          * [`chain::Confirm`] interfaces.
 476          */
 477         public BestBlock current_best_block() {
 478                 long ret = bindings.ChannelMonitor_current_best_block(this.ptr);
 479                 Reference.reachabilityFence(this);
 480                 if (ret >= 0 && ret <= 4096) { return null; }
 481                 org.ldk.structs.BestBlock ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.BestBlock(null, ret); }
 482                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
 483                 return ret_hu_conv;
 484         }
 485
 486         /**
 487          * Triggers rebroadcasts/fee-bumps of pending claims from a force-closed channel. This is
 488          * crucial in preventing certain classes of pinning attacks, detecting substantial mempool
 489          * feerate changes between blocks, and ensuring reliability if broadcasting fails. We recommend
 490          * invoking this every 30 seconds, or lower if running in an environment with spotty
 491          * connections, like on mobile.
 492          */
 493         public void rebroadcast_pending_claims(org.ldk.structs.BroadcasterInterface broadcaster, org.ldk.structs.FeeEstimator fee_estimator, org.ldk.structs.Logger logger) {
 494                 bindings.ChannelMonitor_rebroadcast_pending_claims(this.ptr, broadcaster.ptr, fee_estimator.ptr, logger.ptr);
 495                 Reference.reachabilityFence(this);
 496                 Reference.reachabilityFence(broadcaster);
 497                 Reference.reachabilityFence(fee_estimator);
 498                 Reference.reachabilityFence(logger);
 499                 if (this != null) { this.ptrs_to.add(broadcaster); };
 500                 if (this != null) { this.ptrs_to.add(fee_estimator); };
 501                 if (this != null) { this.ptrs_to.add(logger); };
 502         }
 503
 504         /**
 505          * Triggers rebroadcasts of pending claims from a force-closed channel after a transaction
 506          * signature generation failure.
 507          */
 508         public void signer_unblocked(org.ldk.structs.BroadcasterInterface broadcaster, org.ldk.structs.FeeEstimator fee_estimator, org.ldk.structs.Logger logger) {
 509                 bindings.ChannelMonitor_signer_unblocked(this.ptr, broadcaster.ptr, fee_estimator.ptr, logger.ptr);
 510                 Reference.reachabilityFence(this);
 511                 Reference.reachabilityFence(broadcaster);
 512                 Reference.reachabilityFence(fee_estimator);
 513                 Reference.reachabilityFence(logger);
 514                 if (this != null) { this.ptrs_to.add(broadcaster); };
 515                 if (this != null) { this.ptrs_to.add(fee_estimator); };
 516                 if (this != null) { this.ptrs_to.add(logger); };
 517         }
 518
 519         /**
 520          * Returns the descriptors for relevant outputs (i.e., those that we can spend) within the
 521          * transaction if they exist and the transaction has at least [`ANTI_REORG_DELAY`]
 522          * confirmations. For [`SpendableOutputDescriptor::DelayedPaymentOutput`] descriptors to be
 523          * returned, the transaction must have at least `max(ANTI_REORG_DELAY, to_self_delay)`
 524          * confirmations.
 525          *
 526          * Descriptors returned by this method are primarily exposed via [`Event::SpendableOutputs`]
 527          * once they are no longer under reorg risk. This method serves as a way to retrieve these
 528          * descriptors at a later time, either for historical purposes, or to replay any
 529          * missed/unhandled descriptors. For the purpose of gathering historical records, if the
 530          * channel close has fully resolved (i.e., [`ChannelMonitor::get_claimable_balances`] returns
 531          * an empty set), you can retrieve all spendable outputs by providing all descendant spending
 532          * transactions starting from the channel's funding transaction and going down three levels.
 533          *
 534          * `tx` is a transaction we'll scan the outputs of. Any transaction can be provided. If any
 535          * outputs which can be spent by us are found, at least one descriptor is returned.
 536          *
 537          * `confirmation_height` must be the height of the block in which `tx` was included in.
 538          */
 539         public SpendableOutputDescriptor[] get_spendable_outputs(byte[] tx, int confirmation_height) {
 540                 long[] ret = bindings.ChannelMonitor_get_spendable_outputs(this.ptr, tx, confirmation_height);
 541                 Reference.reachabilityFence(this);
 542                 Reference.reachabilityFence(tx);
 543                 Reference.reachabilityFence(confirmation_height);
 544                 int ret_conv_27_len = ret.length;
 545                 SpendableOutputDescriptor[] ret_conv_27_arr = new SpendableOutputDescriptor[ret_conv_27_len];
 546                 for (int b = 0; b < ret_conv_27_len; b++) {
 547                         long ret_conv_27 = ret[b];
 548                         org.ldk.structs.SpendableOutputDescriptor ret_conv_27_hu_conv = org.ldk.structs.SpendableOutputDescriptor.constr_from_ptr(ret_conv_27);
 549                         if (ret_conv_27_hu_conv != null) { ret_conv_27_hu_conv.ptrs_to.add(this); };
 550                         ret_conv_27_arr[b] = ret_conv_27_hu_conv;
 551                 }
 552                 return ret_conv_27_arr;
 553         }
 554
 555         /**
 556          * Checks if the monitor is fully resolved. Resolved monitor is one that has claimed all of
 557          * its outputs and balances (i.e. [`Self::get_claimable_balances`] returns an empty set).
 558          *
 559          * This function returns true only if [`Self::get_claimable_balances`] has been empty for at least
 560          * 4032 blocks as an additional protection against any bugs resulting in spuriously empty balance sets.
 561          */
 562         public boolean is_fully_resolved(org.ldk.structs.Logger logger) {
 563                 boolean ret = bindings.ChannelMonitor_is_fully_resolved(this.ptr, logger.ptr);
 564                 Reference.reachabilityFence(this);
 565                 Reference.reachabilityFence(logger);
 566                 if (this != null) { this.ptrs_to.add(logger); };
 567                 return ret;
 568         }
 569
 570         /**
 571          * Gets the balances in this channel which are either claimable by us if we were to
 572          * force-close the channel now or which are claimable on-chain (possibly awaiting
 573          * confirmation).
 574          *
 575          * Any balances in the channel which are available on-chain (excluding on-chain fees) are
 576          * included here until an [`Event::SpendableOutputs`] event has been generated for the
 577          * balance, or until our counterparty has claimed the balance and accrued several
 578          * confirmations on the claim transaction.
 579          *
 580          * Note that for `ChannelMonitors` which track a channel which went on-chain with versions of
 581          * LDK prior to 0.0.111, not all or excess balances may be included.
 582          *
 583          * See [`Balance`] for additional details on the types of claimable balances which
 584          * may be returned here and their meanings.
 585          */
 586         public Balance[] get_claimable_balances() {
 587                 long[] ret = bindings.ChannelMonitor_get_claimable_balances(this.ptr);
 588                 Reference.reachabilityFence(this);
 589                 int ret_conv_9_len = ret.length;
 590                 Balance[] ret_conv_9_arr = new Balance[ret_conv_9_len];
 591                 for (int j = 0; j < ret_conv_9_len; j++) {
 592                         long ret_conv_9 = ret[j];
 593                         org.ldk.structs.Balance ret_conv_9_hu_conv = org.ldk.structs.Balance.constr_from_ptr(ret_conv_9);
 594                         if (ret_conv_9_hu_conv != null) { ret_conv_9_hu_conv.ptrs_to.add(this); };
 595                         ret_conv_9_arr[j] = ret_conv_9_hu_conv;
 596                 }
 597                 return ret_conv_9_arr;
 598         }
 599
 600 }