_ Git - ldk-java/blob - src/main/java/org/ldk/structs/ChannelMessageHandler.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  * A trait to describe an object which can receive channel messages.
  12  *
  13  * Messages MAY be called in parallel when they originate from different their_node_ids, however
  14  * they MUST NOT be called in parallel when the two calls have the same their_node_id.
  15  */
  16 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
  17 public class ChannelMessageHandler extends CommonBase {
  18         final bindings.LDKChannelMessageHandler bindings_instance;
  19         ChannelMessageHandler(Object _dummy, long ptr) { super(ptr); bindings_instance = null; }
  20         private ChannelMessageHandler(bindings.LDKChannelMessageHandler arg, bindings.LDKMessageSendEventsProvider MessageSendEventsProvider) {
  21                 super(bindings.LDKChannelMessageHandler_new(arg, MessageSendEventsProvider));
  22                 this.ptrs_to.add(arg);
  23                 this.ptrs_to.add(MessageSendEventsProvider);
  24                 this.bindings_instance = arg;
  25         }
  26         @Override @SuppressWarnings("deprecation")
  27         protected void finalize() throws Throwable {
  28                 if (ptr != 0) { bindings.ChannelMessageHandler_free(ptr); } super.finalize();
  29         }
  30
  31         public static interface ChannelMessageHandlerInterface {
  32                 /**
  33                  * Handle an incoming open_channel message from the given peer.
  34                  */
  35                 void handle_open_channel(byte[] their_node_id, InitFeatures their_features, OpenChannel msg);
  36                 /**
  37                  * Handle an incoming accept_channel message from the given peer.
  38                  */
  39                 void handle_accept_channel(byte[] their_node_id, InitFeatures their_features, AcceptChannel msg);
  40                 /**
  41                  * Handle an incoming funding_created message from the given peer.
  42                  */
  43                 void handle_funding_created(byte[] their_node_id, FundingCreated msg);
  44                 /**
  45                  * Handle an incoming funding_signed message from the given peer.
  46                  */
  47                 void handle_funding_signed(byte[] their_node_id, FundingSigned msg);
  48                 /**
  49                  * Handle an incoming channel_ready message from the given peer.
  50                  */
  51                 void handle_channel_ready(byte[] their_node_id, ChannelReady msg);
  52                 /**
  53                  * Handle an incoming shutdown message from the given peer.
  54                  */
  55                 void handle_shutdown(byte[] their_node_id, InitFeatures their_features, Shutdown msg);
  56                 /**
  57                  * Handle an incoming closing_signed message from the given peer.
  58                  */
  59                 void handle_closing_signed(byte[] their_node_id, ClosingSigned msg);
  60                 /**
  61                  * Handle an incoming update_add_htlc message from the given peer.
  62                  */
  63                 void handle_update_add_htlc(byte[] their_node_id, UpdateAddHTLC msg);
  64                 /**
  65                  * Handle an incoming update_fulfill_htlc message from the given peer.
  66                  */
  67                 void handle_update_fulfill_htlc(byte[] their_node_id, UpdateFulfillHTLC msg);
  68                 /**
  69                  * Handle an incoming update_fail_htlc message from the given peer.
  70                  */
  71                 void handle_update_fail_htlc(byte[] their_node_id, UpdateFailHTLC msg);
  72                 /**
  73                  * Handle an incoming update_fail_malformed_htlc message from the given peer.
  74                  */
  75                 void handle_update_fail_malformed_htlc(byte[] their_node_id, UpdateFailMalformedHTLC msg);
  76                 /**
  77                  * Handle an incoming commitment_signed message from the given peer.
  78                  */
  79                 void handle_commitment_signed(byte[] their_node_id, CommitmentSigned msg);
  80                 /**
  81                  * Handle an incoming revoke_and_ack message from the given peer.
  82                  */
  83                 void handle_revoke_and_ack(byte[] their_node_id, RevokeAndACK msg);
  84                 /**
  85                  * Handle an incoming update_fee message from the given peer.
  86                  */
  87                 void handle_update_fee(byte[] their_node_id, UpdateFee msg);
  88                 /**
  89                  * Handle an incoming announcement_signatures message from the given peer.
  90                  */
  91                 void handle_announcement_signatures(byte[] their_node_id, AnnouncementSignatures msg);
  92                 /**
  93                  * Indicates a connection to the peer failed/an existing connection was lost. If no connection
  94                  * is believed to be possible in the future (eg they're sending us messages we don't
  95                  * understand or indicate they require unknown feature bits), no_connection_possible is set
  96                  * and any outstanding channels should be failed.
  97                  *
  98                  * Note that in some rare cases this may be called without a corresponding
  99                  * [`Self::peer_connected`].
 100                  */
 101                 void peer_disconnected(byte[] their_node_id, boolean no_connection_possible);
 102                 /**
 103                  * Handle a peer reconnecting, possibly generating channel_reestablish message(s).
 104                  *
 105                  * May return an `Err(())` if the features the peer supports are not sufficient to communicate
 106                  * with us. Implementors should be somewhat conservative about doing so, however, as other
 107                  * message handlers may still wish to communicate with this peer.
 108                  */
 109                 Result_NoneNoneZ peer_connected(byte[] their_node_id, Init msg);
 110                 /**
 111                  * Handle an incoming channel_reestablish message from the given peer.
 112                  */
 113                 void handle_channel_reestablish(byte[] their_node_id, ChannelReestablish msg);
 114                 /**
 115                  * Handle an incoming channel update from the given peer.
 116                  */
 117                 void handle_channel_update(byte[] their_node_id, ChannelUpdate msg);
 118                 /**
 119                  * Handle an incoming error message from the given peer.
 120                  */
 121                 void handle_error(byte[] their_node_id, ErrorMessage msg);
 122                 /**
 123                  * Gets the node feature flags which this handler itself supports. All available handlers are
 124                  * queried similarly and their feature flags are OR'd together to form the [`NodeFeatures`]
 125                  * which are broadcasted in our [`NodeAnnouncement`] message.
 126                  */
 127                 NodeFeatures provided_node_features();
 128                 /**
 129                  * Gets the init feature flags which should be sent to the given peer. All available handlers
 130                  * are queried similarly and their feature flags are OR'd together to form the [`InitFeatures`]
 131                  * which are sent in our [`Init`] message.
 132                  *
 133                  * Note that this method is called before [`Self::peer_connected`].
 134                  */
 135                 InitFeatures provided_init_features(byte[] their_node_id);
 136         }
 137         private static class LDKChannelMessageHandlerHolder { ChannelMessageHandler held; }
 138         public static ChannelMessageHandler new_impl(ChannelMessageHandlerInterface arg, MessageSendEventsProvider.MessageSendEventsProviderInterface MessageSendEventsProvider_impl) {
 139                 final LDKChannelMessageHandlerHolder impl_holder = new LDKChannelMessageHandlerHolder();
 140                 impl_holder.held = new ChannelMessageHandler(new bindings.LDKChannelMessageHandler() {
 141                         @Override public void handle_open_channel(byte[] their_node_id, long their_features, long msg) {
 142                                 org.ldk.structs.InitFeatures their_features_hu_conv = null; if (their_features < 0 || their_features > 4096) { their_features_hu_conv = new org.ldk.structs.InitFeatures(null, their_features); }
 143                                 if (their_features_hu_conv != null) { their_features_hu_conv.ptrs_to.add(this); };
 144                                 org.ldk.structs.OpenChannel msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.OpenChannel(null, msg); }
 145                                 arg.handle_open_channel(their_node_id, their_features_hu_conv, msg_hu_conv);
 146                                 Reference.reachabilityFence(arg);
 147                         }
 148                         @Override public void handle_accept_channel(byte[] their_node_id, long their_features, long msg) {
 149                                 org.ldk.structs.InitFeatures their_features_hu_conv = null; if (their_features < 0 || their_features > 4096) { their_features_hu_conv = new org.ldk.structs.InitFeatures(null, their_features); }
 150                                 if (their_features_hu_conv != null) { their_features_hu_conv.ptrs_to.add(this); };
 151                                 org.ldk.structs.AcceptChannel msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.AcceptChannel(null, msg); }
 152                                 arg.handle_accept_channel(their_node_id, their_features_hu_conv, msg_hu_conv);
 153                                 Reference.reachabilityFence(arg);
 154                         }
 155                         @Override public void handle_funding_created(byte[] their_node_id, long msg) {
 156                                 org.ldk.structs.FundingCreated msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.FundingCreated(null, msg); }
 157                                 arg.handle_funding_created(their_node_id, msg_hu_conv);
 158                                 Reference.reachabilityFence(arg);
 159                         }
 160                         @Override public void handle_funding_signed(byte[] their_node_id, long msg) {
 161                                 org.ldk.structs.FundingSigned msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.FundingSigned(null, msg); }
 162                                 arg.handle_funding_signed(their_node_id, msg_hu_conv);
 163                                 Reference.reachabilityFence(arg);
 164                         }
 165                         @Override public void handle_channel_ready(byte[] their_node_id, long msg) {
 166                                 org.ldk.structs.ChannelReady msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.ChannelReady(null, msg); }
 167                                 arg.handle_channel_ready(their_node_id, msg_hu_conv);
 168                                 Reference.reachabilityFence(arg);
 169                         }
 170                         @Override public void handle_shutdown(byte[] their_node_id, long their_features, long msg) {
 171                                 org.ldk.structs.InitFeatures their_features_hu_conv = null; if (their_features < 0 || their_features > 4096) { their_features_hu_conv = new org.ldk.structs.InitFeatures(null, their_features); }
 172                                 org.ldk.structs.Shutdown msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.Shutdown(null, msg); }
 173                                 arg.handle_shutdown(their_node_id, their_features_hu_conv, msg_hu_conv);
 174                                 Reference.reachabilityFence(arg);
 175                         }
 176                         @Override public void handle_closing_signed(byte[] their_node_id, long msg) {
 177                                 org.ldk.structs.ClosingSigned msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.ClosingSigned(null, msg); }
 178                                 arg.handle_closing_signed(their_node_id, msg_hu_conv);
 179                                 Reference.reachabilityFence(arg);
 180                         }
 181                         @Override public void handle_update_add_htlc(byte[] their_node_id, long msg) {
 182                                 org.ldk.structs.UpdateAddHTLC msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.UpdateAddHTLC(null, msg); }
 183                                 arg.handle_update_add_htlc(their_node_id, msg_hu_conv);
 184                                 Reference.reachabilityFence(arg);
 185                         }
 186                         @Override public void handle_update_fulfill_htlc(byte[] their_node_id, long msg) {
 187                                 org.ldk.structs.UpdateFulfillHTLC msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.UpdateFulfillHTLC(null, msg); }
 188                                 arg.handle_update_fulfill_htlc(their_node_id, msg_hu_conv);
 189                                 Reference.reachabilityFence(arg);
 190                         }
 191                         @Override public void handle_update_fail_htlc(byte[] their_node_id, long msg) {
 192                                 org.ldk.structs.UpdateFailHTLC msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.UpdateFailHTLC(null, msg); }
 193                                 arg.handle_update_fail_htlc(their_node_id, msg_hu_conv);
 194                                 Reference.reachabilityFence(arg);
 195                         }
 196                         @Override public void handle_update_fail_malformed_htlc(byte[] their_node_id, long msg) {
 197                                 org.ldk.structs.UpdateFailMalformedHTLC msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.UpdateFailMalformedHTLC(null, msg); }
 198                                 arg.handle_update_fail_malformed_htlc(their_node_id, msg_hu_conv);
 199                                 Reference.reachabilityFence(arg);
 200                         }
 201                         @Override public void handle_commitment_signed(byte[] their_node_id, long msg) {
 202                                 org.ldk.structs.CommitmentSigned msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.CommitmentSigned(null, msg); }
 203                                 arg.handle_commitment_signed(their_node_id, msg_hu_conv);
 204                                 Reference.reachabilityFence(arg);
 205                         }
 206                         @Override public void handle_revoke_and_ack(byte[] their_node_id, long msg) {
 207                                 org.ldk.structs.RevokeAndACK msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.RevokeAndACK(null, msg); }
 208                                 arg.handle_revoke_and_ack(their_node_id, msg_hu_conv);
 209                                 Reference.reachabilityFence(arg);
 210                         }
 211                         @Override public void handle_update_fee(byte[] their_node_id, long msg) {
 212                                 org.ldk.structs.UpdateFee msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.UpdateFee(null, msg); }
 213                                 arg.handle_update_fee(their_node_id, msg_hu_conv);
 214                                 Reference.reachabilityFence(arg);
 215                         }
 216                         @Override public void handle_announcement_signatures(byte[] their_node_id, long msg) {
 217                                 org.ldk.structs.AnnouncementSignatures msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.AnnouncementSignatures(null, msg); }
 218                                 arg.handle_announcement_signatures(their_node_id, msg_hu_conv);
 219                                 Reference.reachabilityFence(arg);
 220                         }
 221                         @Override public void peer_disconnected(byte[] their_node_id, boolean no_connection_possible) {
 222                                 arg.peer_disconnected(their_node_id, no_connection_possible);
 223                                 Reference.reachabilityFence(arg);
 224                         }
 225                         @Override public long peer_connected(byte[] their_node_id, long msg) {
 226                                 org.ldk.structs.Init msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.Init(null, msg); }
 227                                 Result_NoneNoneZ ret = arg.peer_connected(their_node_id, msg_hu_conv);
 228                                 Reference.reachabilityFence(arg);
 229                                 long result = ret == null ? 0 : ret.clone_ptr();
 230                                 return result;
 231                         }
 232                         @Override public void handle_channel_reestablish(byte[] their_node_id, long msg) {
 233                                 org.ldk.structs.ChannelReestablish msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.ChannelReestablish(null, msg); }
 234                                 arg.handle_channel_reestablish(their_node_id, msg_hu_conv);
 235                                 Reference.reachabilityFence(arg);
 236                         }
 237                         @Override public void handle_channel_update(byte[] their_node_id, long msg) {
 238                                 org.ldk.structs.ChannelUpdate msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.ChannelUpdate(null, msg); }
 239                                 arg.handle_channel_update(their_node_id, msg_hu_conv);
 240                                 Reference.reachabilityFence(arg);
 241                         }
 242                         @Override public void handle_error(byte[] their_node_id, long msg) {
 243                                 org.ldk.structs.ErrorMessage msg_hu_conv = null; if (msg < 0 || msg > 4096) { msg_hu_conv = new org.ldk.structs.ErrorMessage(null, msg); }
 244                                 arg.handle_error(their_node_id, msg_hu_conv);
 245                                 Reference.reachabilityFence(arg);
 246                         }
 247                         @Override public long provided_node_features() {
 248                                 NodeFeatures ret = arg.provided_node_features();
 249                                 Reference.reachabilityFence(arg);
 250                                 long result = ret == null ? 0 : ret.clone_ptr();
 251                                 return result;
 252                         }
 253                         @Override public long provided_init_features(byte[] their_node_id) {
 254                                 InitFeatures ret = arg.provided_init_features(their_node_id);
 255                                 Reference.reachabilityFence(arg);
 256                                 long result = ret == null ? 0 : ret.clone_ptr();
 257                                 return result;
 258                         }
 259                 }, MessageSendEventsProvider.new_impl(MessageSendEventsProvider_impl).bindings_instance);
 260                 return impl_holder.held;
 261         }
 262
 263         /**
 264          * Gets the underlying MessageSendEventsProvider.
 265          */
 266         public MessageSendEventsProvider get_message_send_events_provider() {
 267                 MessageSendEventsProvider res = new MessageSendEventsProvider(null, bindings.LDKChannelMessageHandler_get_MessageSendEventsProvider(this.ptr));
 268                 this.ptrs_to.add(res);
 269                 return res;
 270         }
 271
 272         /**
 273          * Handle an incoming open_channel message from the given peer.
 274          */
 275         public void handle_open_channel(byte[] their_node_id, org.ldk.structs.InitFeatures their_features, org.ldk.structs.OpenChannel msg) {
 276                 bindings.ChannelMessageHandler_handle_open_channel(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), their_features == null ? 0 : their_features.ptr, msg == null ? 0 : msg.ptr);
 277                 Reference.reachabilityFence(this);
 278                 Reference.reachabilityFence(their_node_id);
 279                 Reference.reachabilityFence(their_features);
 280                 Reference.reachabilityFence(msg);
 281                 if (this != null) { this.ptrs_to.add(their_features); };
 282                 if (this != null) { this.ptrs_to.add(msg); };
 283         }
 284
 285         /**
 286          * Handle an incoming accept_channel message from the given peer.
 287          */
 288         public void handle_accept_channel(byte[] their_node_id, org.ldk.structs.InitFeatures their_features, org.ldk.structs.AcceptChannel msg) {
 289                 bindings.ChannelMessageHandler_handle_accept_channel(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), their_features == null ? 0 : their_features.ptr, msg == null ? 0 : msg.ptr);
 290                 Reference.reachabilityFence(this);
 291                 Reference.reachabilityFence(their_node_id);
 292                 Reference.reachabilityFence(their_features);
 293                 Reference.reachabilityFence(msg);
 294                 if (this != null) { this.ptrs_to.add(their_features); };
 295                 if (this != null) { this.ptrs_to.add(msg); };
 296         }
 297
 298         /**
 299          * Handle an incoming funding_created message from the given peer.
 300          */
 301         public void handle_funding_created(byte[] their_node_id, org.ldk.structs.FundingCreated msg) {
 302                 bindings.ChannelMessageHandler_handle_funding_created(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 303                 Reference.reachabilityFence(this);
 304                 Reference.reachabilityFence(their_node_id);
 305                 Reference.reachabilityFence(msg);
 306                 if (this != null) { this.ptrs_to.add(msg); };
 307         }
 308
 309         /**
 310          * Handle an incoming funding_signed message from the given peer.
 311          */
 312         public void handle_funding_signed(byte[] their_node_id, org.ldk.structs.FundingSigned msg) {
 313                 bindings.ChannelMessageHandler_handle_funding_signed(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 314                 Reference.reachabilityFence(this);
 315                 Reference.reachabilityFence(their_node_id);
 316                 Reference.reachabilityFence(msg);
 317                 if (this != null) { this.ptrs_to.add(msg); };
 318         }
 319
 320         /**
 321          * Handle an incoming channel_ready message from the given peer.
 322          */
 323         public void handle_channel_ready(byte[] their_node_id, org.ldk.structs.ChannelReady msg) {
 324                 bindings.ChannelMessageHandler_handle_channel_ready(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 325                 Reference.reachabilityFence(this);
 326                 Reference.reachabilityFence(their_node_id);
 327                 Reference.reachabilityFence(msg);
 328                 if (this != null) { this.ptrs_to.add(msg); };
 329         }
 330
 331         /**
 332          * Handle an incoming shutdown message from the given peer.
 333          */
 334         public void handle_shutdown(byte[] their_node_id, org.ldk.structs.InitFeatures their_features, org.ldk.structs.Shutdown msg) {
 335                 bindings.ChannelMessageHandler_handle_shutdown(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), their_features == null ? 0 : their_features.ptr, msg == null ? 0 : msg.ptr);
 336                 Reference.reachabilityFence(this);
 337                 Reference.reachabilityFence(their_node_id);
 338                 Reference.reachabilityFence(their_features);
 339                 Reference.reachabilityFence(msg);
 340                 if (this != null) { this.ptrs_to.add(their_features); };
 341                 if (this != null) { this.ptrs_to.add(msg); };
 342         }
 343
 344         /**
 345          * Handle an incoming closing_signed message from the given peer.
 346          */
 347         public void handle_closing_signed(byte[] their_node_id, org.ldk.structs.ClosingSigned msg) {
 348                 bindings.ChannelMessageHandler_handle_closing_signed(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 349                 Reference.reachabilityFence(this);
 350                 Reference.reachabilityFence(their_node_id);
 351                 Reference.reachabilityFence(msg);
 352                 if (this != null) { this.ptrs_to.add(msg); };
 353         }
 354
 355         /**
 356          * Handle an incoming update_add_htlc message from the given peer.
 357          */
 358         public void handle_update_add_htlc(byte[] their_node_id, org.ldk.structs.UpdateAddHTLC msg) {
 359                 bindings.ChannelMessageHandler_handle_update_add_htlc(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 360                 Reference.reachabilityFence(this);
 361                 Reference.reachabilityFence(their_node_id);
 362                 Reference.reachabilityFence(msg);
 363                 if (this != null) { this.ptrs_to.add(msg); };
 364         }
 365
 366         /**
 367          * Handle an incoming update_fulfill_htlc message from the given peer.
 368          */
 369         public void handle_update_fulfill_htlc(byte[] their_node_id, org.ldk.structs.UpdateFulfillHTLC msg) {
 370                 bindings.ChannelMessageHandler_handle_update_fulfill_htlc(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 371                 Reference.reachabilityFence(this);
 372                 Reference.reachabilityFence(their_node_id);
 373                 Reference.reachabilityFence(msg);
 374                 if (this != null) { this.ptrs_to.add(msg); };
 375         }
 376
 377         /**
 378          * Handle an incoming update_fail_htlc message from the given peer.
 379          */
 380         public void handle_update_fail_htlc(byte[] their_node_id, org.ldk.structs.UpdateFailHTLC msg) {
 381                 bindings.ChannelMessageHandler_handle_update_fail_htlc(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 382                 Reference.reachabilityFence(this);
 383                 Reference.reachabilityFence(their_node_id);
 384                 Reference.reachabilityFence(msg);
 385                 if (this != null) { this.ptrs_to.add(msg); };
 386         }
 387
 388         /**
 389          * Handle an incoming update_fail_malformed_htlc message from the given peer.
 390          */
 391         public void handle_update_fail_malformed_htlc(byte[] their_node_id, org.ldk.structs.UpdateFailMalformedHTLC msg) {
 392                 bindings.ChannelMessageHandler_handle_update_fail_malformed_htlc(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 393                 Reference.reachabilityFence(this);
 394                 Reference.reachabilityFence(their_node_id);
 395                 Reference.reachabilityFence(msg);
 396                 if (this != null) { this.ptrs_to.add(msg); };
 397         }
 398
 399         /**
 400          * Handle an incoming commitment_signed message from the given peer.
 401          */
 402         public void handle_commitment_signed(byte[] their_node_id, org.ldk.structs.CommitmentSigned msg) {
 403                 bindings.ChannelMessageHandler_handle_commitment_signed(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 404                 Reference.reachabilityFence(this);
 405                 Reference.reachabilityFence(their_node_id);
 406                 Reference.reachabilityFence(msg);
 407                 if (this != null) { this.ptrs_to.add(msg); };
 408         }
 409
 410         /**
 411          * Handle an incoming revoke_and_ack message from the given peer.
 412          */
 413         public void handle_revoke_and_ack(byte[] their_node_id, org.ldk.structs.RevokeAndACK msg) {
 414                 bindings.ChannelMessageHandler_handle_revoke_and_ack(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 415                 Reference.reachabilityFence(this);
 416                 Reference.reachabilityFence(their_node_id);
 417                 Reference.reachabilityFence(msg);
 418                 if (this != null) { this.ptrs_to.add(msg); };
 419         }
 420
 421         /**
 422          * Handle an incoming update_fee message from the given peer.
 423          */
 424         public void handle_update_fee(byte[] their_node_id, org.ldk.structs.UpdateFee msg) {
 425                 bindings.ChannelMessageHandler_handle_update_fee(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 426                 Reference.reachabilityFence(this);
 427                 Reference.reachabilityFence(their_node_id);
 428                 Reference.reachabilityFence(msg);
 429                 if (this != null) { this.ptrs_to.add(msg); };
 430         }
 431
 432         /**
 433          * Handle an incoming announcement_signatures message from the given peer.
 434          */
 435         public void handle_announcement_signatures(byte[] their_node_id, org.ldk.structs.AnnouncementSignatures msg) {
 436                 bindings.ChannelMessageHandler_handle_announcement_signatures(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 437                 Reference.reachabilityFence(this);
 438                 Reference.reachabilityFence(their_node_id);
 439                 Reference.reachabilityFence(msg);
 440                 if (this != null) { this.ptrs_to.add(msg); };
 441         }
 442
 443         /**
 444          * Indicates a connection to the peer failed/an existing connection was lost. If no connection
 445          * is believed to be possible in the future (eg they're sending us messages we don't
 446          * understand or indicate they require unknown feature bits), no_connection_possible is set
 447          * and any outstanding channels should be failed.
 448          *
 449          * Note that in some rare cases this may be called without a corresponding
 450          * [`Self::peer_connected`].
 451          */
 452         public void peer_disconnected(byte[] their_node_id, boolean no_connection_possible) {
 453                 bindings.ChannelMessageHandler_peer_disconnected(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), no_connection_possible);
 454                 Reference.reachabilityFence(this);
 455                 Reference.reachabilityFence(their_node_id);
 456                 Reference.reachabilityFence(no_connection_possible);
 457         }
 458
 459         /**
 460          * Handle a peer reconnecting, possibly generating channel_reestablish message(s).
 461          *
 462          * May return an `Err(())` if the features the peer supports are not sufficient to communicate
 463          * with us. Implementors should be somewhat conservative about doing so, however, as other
 464          * message handlers may still wish to communicate with this peer.
 465          */
 466         public Result_NoneNoneZ peer_connected(byte[] their_node_id, org.ldk.structs.Init msg) {
 467                 long ret = bindings.ChannelMessageHandler_peer_connected(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 468                 Reference.reachabilityFence(this);
 469                 Reference.reachabilityFence(their_node_id);
 470                 Reference.reachabilityFence(msg);
 471                 if (ret >= 0 && ret <= 4096) { return null; }
 472                 Result_NoneNoneZ ret_hu_conv = Result_NoneNoneZ.constr_from_ptr(ret);
 473                 if (this != null) { this.ptrs_to.add(msg); };
 474                 return ret_hu_conv;
 475         }
 476
 477         /**
 478          * Handle an incoming channel_reestablish message from the given peer.
 479          */
 480         public void handle_channel_reestablish(byte[] their_node_id, org.ldk.structs.ChannelReestablish msg) {
 481                 bindings.ChannelMessageHandler_handle_channel_reestablish(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 482                 Reference.reachabilityFence(this);
 483                 Reference.reachabilityFence(their_node_id);
 484                 Reference.reachabilityFence(msg);
 485                 if (this != null) { this.ptrs_to.add(msg); };
 486         }
 487
 488         /**
 489          * Handle an incoming channel update from the given peer.
 490          */
 491         public void handle_channel_update(byte[] their_node_id, org.ldk.structs.ChannelUpdate msg) {
 492                 bindings.ChannelMessageHandler_handle_channel_update(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 493                 Reference.reachabilityFence(this);
 494                 Reference.reachabilityFence(their_node_id);
 495                 Reference.reachabilityFence(msg);
 496                 if (this != null) { this.ptrs_to.add(msg); };
 497         }
 498
 499         /**
 500          * Handle an incoming error message from the given peer.
 501          */
 502         public void handle_error(byte[] their_node_id, org.ldk.structs.ErrorMessage msg) {
 503                 bindings.ChannelMessageHandler_handle_error(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 504                 Reference.reachabilityFence(this);
 505                 Reference.reachabilityFence(their_node_id);
 506                 Reference.reachabilityFence(msg);
 507                 if (this != null) { this.ptrs_to.add(msg); };
 508         }
 509
 510         /**
 511          * Gets the node feature flags which this handler itself supports. All available handlers are
 512          * queried similarly and their feature flags are OR'd together to form the [`NodeFeatures`]
 513          * which are broadcasted in our [`NodeAnnouncement`] message.
 514          */
 515         public NodeFeatures provided_node_features() {
 516                 long ret = bindings.ChannelMessageHandler_provided_node_features(this.ptr);
 517                 Reference.reachabilityFence(this);
 518                 if (ret >= 0 && ret <= 4096) { return null; }
 519                 org.ldk.structs.NodeFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.NodeFeatures(null, ret); }
 520                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
 521                 return ret_hu_conv;
 522         }
 523
 524         /**
 525          * Gets the init feature flags which should be sent to the given peer. All available handlers
 526          * are queried similarly and their feature flags are OR'd together to form the [`InitFeatures`]
 527          * which are sent in our [`Init`] message.
 528          *
 529          * Note that this method is called before [`Self::peer_connected`].
 530          */
 531         public InitFeatures provided_init_features(byte[] their_node_id) {
 532                 long ret = bindings.ChannelMessageHandler_provided_init_features(this.ptr, InternalUtils.check_arr_len(their_node_id, 33));
 533                 Reference.reachabilityFence(this);
 534                 Reference.reachabilityFence(their_node_id);
 535                 if (ret >= 0 && ret <= 4096) { return null; }
 536                 org.ldk.structs.InitFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.InitFeatures(null, ret); }
 537                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
 538                 return ret_hu_conv;
 539         }
 540
 541 }