_ Git - ldk-java/blob - c_sharp/src/org/ldk/structs/RoutingMessageHandler.cs

   1 using org.ldk.impl;
   2 using org.ldk.enums;
   3 using org.ldk.util;
   4 using System;
   5
   6 namespace org { namespace ldk { namespace structs {
   7
   8 /**
   9  * A trait to describe an object which can receive routing messages.
  10  *
  11  * # Implementor DoS Warnings
  12  *
  13  * For `gossip_queries` messages there are potential DoS vectors when handling
  14  * inbound queries. Implementors using an on-disk network graph should be aware of
  15  * repeated disk I/O for queries accessing different parts of the network graph.
  16  */
  17 public class RoutingMessageHandler : CommonBase {
  18         internal readonly bindings.LDKRoutingMessageHandler bindings_instance;
  19         internal RoutingMessageHandler(object _dummy, long ptr) : base(ptr) { bindings_instance = null; }
  20         private RoutingMessageHandler(bindings.LDKRoutingMessageHandler arg, bindings.LDKMessageSendEventsProvider MessageSendEventsProvider) : base(bindings.LDKRoutingMessageHandler_new(arg, MessageSendEventsProvider)) {
  21                 this.ptrs_to.AddLast(arg);
  22                 this.ptrs_to.AddLast(MessageSendEventsProvider);
  23                 this.bindings_instance = arg;
  24         }
  25         ~RoutingMessageHandler() {
  26                 if (ptr != 0) { bindings.RoutingMessageHandler_free(ptr); }
  27         }
  28
  29         public interface RoutingMessageHandlerInterface {
  30                 /**
  31                  * Handle an incoming node_announcement message, returning true if it should be forwarded on,
  32                  * false or returning an Err otherwise.
  33                  */
  34                 Result_boolLightningErrorZ handle_node_announcement(NodeAnnouncement _msg);
  35                 /**
  36                  * Handle a channel_announcement message, returning true if it should be forwarded on, false
  37                  * or returning an Err otherwise.
  38                  */
  39                 Result_boolLightningErrorZ handle_channel_announcement(ChannelAnnouncement _msg);
  40                 /**
  41                  * Handle an incoming channel_update message, returning true if it should be forwarded on,
  42                  * false or returning an Err otherwise.
  43                  */
  44                 Result_boolLightningErrorZ handle_channel_update(ChannelUpdate _msg);
  45                 /**
  46                  * Gets channel announcements and updates required to dump our routing table to a remote node,
  47                  * starting at the short_channel_id indicated by starting_point and including announcements
  48                  * for a single channel.
  49                  */
  50                 Option_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ get_next_channel_announcement(long _starting_point);
  51                 /**
  52                  * Gets a node announcement required to dump our routing table to a remote node, starting at
  53                  * the node *after* the provided pubkey and including up to one announcement immediately
  54                  * higher (as defined by <PublicKey as Ord>::cmp) than starting_point.
  55                  * If None is provided for starting_point, we start at the first node.
  56                  *
  57                  * Note that starting_point (or a relevant inner pointer) may be NULL or all-0s to represent None
  58                  * Note that the return value (or a relevant inner pointer) may be NULL or all-0s to represent None
  59                  */
  60                 NodeAnnouncement get_next_node_announcement(byte[] _starting_point);
  61                 /**
  62                  * Called when a connection is established with a peer. This can be used to
  63                  * perform routing table synchronization using a strategy defined by the
  64                  * implementor.
  65                  *
  66                  * May return an `Err(())` if the features the peer supports are not sufficient to communicate
  67                  * with us. Implementors should be somewhat conservative about doing so, however, as other
  68                  * message handlers may still wish to communicate with this peer.
  69                  */
  70                 Result_NoneNoneZ peer_connected(byte[] _their_node_id, Init _init);
  71                 /**
  72                  * Handles the reply of a query we initiated to learn about channels
  73                  * for a given range of blocks. We can expect to receive one or more
  74                  * replies to a single query.
  75                  */
  76                 Result_NoneLightningErrorZ handle_reply_channel_range(byte[] _their_node_id, ReplyChannelRange _msg);
  77                 /**
  78                  * Handles the reply of a query we initiated asking for routing gossip
  79                  * messages for a list of channels. We should receive this message when
  80                  * a node has completed its best effort to send us the pertaining routing
  81                  * gossip messages.
  82                  */
  83                 Result_NoneLightningErrorZ handle_reply_short_channel_ids_end(byte[] _their_node_id, ReplyShortChannelIdsEnd _msg);
  84                 /**
  85                  * Handles when a peer asks us to send a list of short_channel_ids
  86                  * for the requested range of blocks.
  87                  */
  88                 Result_NoneLightningErrorZ handle_query_channel_range(byte[] _their_node_id, QueryChannelRange _msg);
  89                 /**
  90                  * Handles when a peer asks us to send routing gossip messages for a
  91                  * list of short_channel_ids.
  92                  */
  93                 Result_NoneLightningErrorZ handle_query_short_channel_ids(byte[] _their_node_id, QueryShortChannelIds _msg);
  94                 /**
  95                  * Gets the node feature flags which this handler itself supports. All available handlers are
  96                  * queried similarly and their feature flags are OR'd together to form the [`NodeFeatures`]
  97                  * which are broadcasted in our [`NodeAnnouncement`] message.
  98                  */
  99                 NodeFeatures provided_node_features();
 100                 /**
 101                  * Gets the init feature flags which should be sent to the given peer. All available handlers
 102                  * are queried similarly and their feature flags are OR'd together to form the [`InitFeatures`]
 103                  * which are sent in our [`Init`] message.
 104                  *
 105                  * Note that this method is called before [`Self::peer_connected`].
 106                  */
 107                 InitFeatures provided_init_features(byte[] _their_node_id);
 108         }
 109         private class LDKRoutingMessageHandlerHolder { internal RoutingMessageHandler held; }
 110         private class LDKRoutingMessageHandlerImpl : bindings.LDKRoutingMessageHandler {
 111                 internal LDKRoutingMessageHandlerImpl(RoutingMessageHandlerInterface arg, LDKRoutingMessageHandlerHolder impl_holder) { this.arg = arg; this.impl_holder = impl_holder; }
 112                 private RoutingMessageHandlerInterface arg;
 113                 private LDKRoutingMessageHandlerHolder impl_holder;
 114                 public long handle_node_announcement(long _msg) {
 115                         org.ldk.structs.NodeAnnouncement _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.NodeAnnouncement(null, _msg); }
 116                         Result_boolLightningErrorZ ret = arg.handle_node_announcement(_msg_hu_conv);
 117                                 GC.KeepAlive(arg);
 118                         long result = ret == null ? 0 : ret.clone_ptr();
 119                         return result;
 120                 }
 121                 public long handle_channel_announcement(long _msg) {
 122                         org.ldk.structs.ChannelAnnouncement _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.ChannelAnnouncement(null, _msg); }
 123                         Result_boolLightningErrorZ ret = arg.handle_channel_announcement(_msg_hu_conv);
 124                                 GC.KeepAlive(arg);
 125                         long result = ret == null ? 0 : ret.clone_ptr();
 126                         return result;
 127                 }
 128                 public long handle_channel_update(long _msg) {
 129                         org.ldk.structs.ChannelUpdate _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.ChannelUpdate(null, _msg); }
 130                         Result_boolLightningErrorZ ret = arg.handle_channel_update(_msg_hu_conv);
 131                                 GC.KeepAlive(arg);
 132                         long result = ret == null ? 0 : ret.clone_ptr();
 133                         return result;
 134                 }
 135                 public long get_next_channel_announcement(long _starting_point) {
 136                         Option_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ ret = arg.get_next_channel_announcement(_starting_point);
 137                                 GC.KeepAlive(arg);
 138                         long result = ret == null ? 0 : ret.clone_ptr();
 139                         return result;
 140                 }
 141                 public long get_next_node_announcement(byte[] _starting_point) {
 142                         NodeAnnouncement ret = arg.get_next_node_announcement(_starting_point);
 143                                 GC.KeepAlive(arg);
 144                         long result = ret == null ? 0 : ret.clone_ptr();
 145                         return result;
 146                 }
 147                 public long peer_connected(byte[] _their_node_id, long _init) {
 148                         org.ldk.structs.Init _init_hu_conv = null; if (_init < 0 || _init > 4096) { _init_hu_conv = new org.ldk.structs.Init(null, _init); }
 149                         Result_NoneNoneZ ret = arg.peer_connected(_their_node_id, _init_hu_conv);
 150                                 GC.KeepAlive(arg);
 151                         long result = ret == null ? 0 : ret.clone_ptr();
 152                         return result;
 153                 }
 154                 public long handle_reply_channel_range(byte[] _their_node_id, long _msg) {
 155                         org.ldk.structs.ReplyChannelRange _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.ReplyChannelRange(null, _msg); }
 156                         if (_msg_hu_conv != null) { _msg_hu_conv.ptrs_to.AddLast(this); };
 157                         Result_NoneLightningErrorZ ret = arg.handle_reply_channel_range(_their_node_id, _msg_hu_conv);
 158                                 GC.KeepAlive(arg);
 159                         long result = ret == null ? 0 : ret.clone_ptr();
 160                         return result;
 161                 }
 162                 public long handle_reply_short_channel_ids_end(byte[] _their_node_id, long _msg) {
 163                         org.ldk.structs.ReplyShortChannelIdsEnd _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.ReplyShortChannelIdsEnd(null, _msg); }
 164                         if (_msg_hu_conv != null) { _msg_hu_conv.ptrs_to.AddLast(this); };
 165                         Result_NoneLightningErrorZ ret = arg.handle_reply_short_channel_ids_end(_their_node_id, _msg_hu_conv);
 166                                 GC.KeepAlive(arg);
 167                         long result = ret == null ? 0 : ret.clone_ptr();
 168                         return result;
 169                 }
 170                 public long handle_query_channel_range(byte[] _their_node_id, long _msg) {
 171                         org.ldk.structs.QueryChannelRange _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.QueryChannelRange(null, _msg); }
 172                         if (_msg_hu_conv != null) { _msg_hu_conv.ptrs_to.AddLast(this); };
 173                         Result_NoneLightningErrorZ ret = arg.handle_query_channel_range(_their_node_id, _msg_hu_conv);
 174                                 GC.KeepAlive(arg);
 175                         long result = ret == null ? 0 : ret.clone_ptr();
 176                         return result;
 177                 }
 178                 public long handle_query_short_channel_ids(byte[] _their_node_id, long _msg) {
 179                         org.ldk.structs.QueryShortChannelIds _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.QueryShortChannelIds(null, _msg); }
 180                         if (_msg_hu_conv != null) { _msg_hu_conv.ptrs_to.AddLast(this); };
 181                         Result_NoneLightningErrorZ ret = arg.handle_query_short_channel_ids(_their_node_id, _msg_hu_conv);
 182                                 GC.KeepAlive(arg);
 183                         long result = ret == null ? 0 : ret.clone_ptr();
 184                         return result;
 185                 }
 186                 public long provided_node_features() {
 187                         NodeFeatures ret = arg.provided_node_features();
 188                                 GC.KeepAlive(arg);
 189                         long result = ret == null ? 0 : ret.clone_ptr();
 190                         return result;
 191                 }
 192                 public long provided_init_features(byte[] _their_node_id) {
 193                         InitFeatures ret = arg.provided_init_features(_their_node_id);
 194                                 GC.KeepAlive(arg);
 195                         long result = ret == null ? 0 : ret.clone_ptr();
 196                         return result;
 197                 }
 198         }
 199         public static RoutingMessageHandler new_impl(RoutingMessageHandlerInterface arg, MessageSendEventsProvider.MessageSendEventsProviderInterface MessageSendEventsProvider_impl) {
 200                 LDKRoutingMessageHandlerHolder impl_holder = new LDKRoutingMessageHandlerHolder();
 201                 impl_holder.held = new RoutingMessageHandler(new LDKRoutingMessageHandlerImpl(arg, impl_holder), MessageSendEventsProvider.new_impl(MessageSendEventsProvider_impl).bindings_instance);
 202                 return impl_holder.held;
 203         }
 204
 205         /**
 206          * Gets the underlying MessageSendEventsProvider.
 207          */
 208         public MessageSendEventsProvider get_message_send_events_provider() {
 209                 MessageSendEventsProvider res = new MessageSendEventsProvider(null, bindings.LDKRoutingMessageHandler_get_MessageSendEventsProvider(this.ptr));
 210                 this.ptrs_to.AddLast(res);
 211                 return res;
 212         }
 213
 214         /**
 215          * Handle an incoming node_announcement message, returning true if it should be forwarded on,
 216          * false or returning an Err otherwise.
 217          */
 218         public Result_boolLightningErrorZ handle_node_announcement(org.ldk.structs.NodeAnnouncement msg) {
 219                 long ret = bindings.RoutingMessageHandler_handle_node_announcement(this.ptr, msg == null ? 0 : msg.ptr);
 220                 GC.KeepAlive(this);
 221                 GC.KeepAlive(msg);
 222                 if (ret >= 0 && ret <= 4096) { return null; }
 223                 Result_boolLightningErrorZ ret_hu_conv = Result_boolLightningErrorZ.constr_from_ptr(ret);
 224                 if (this != null) { this.ptrs_to.AddLast(msg); };
 225                 return ret_hu_conv;
 226         }
 227
 228         /**
 229          * Handle a channel_announcement message, returning true if it should be forwarded on, false
 230          * or returning an Err otherwise.
 231          */
 232         public Result_boolLightningErrorZ handle_channel_announcement(org.ldk.structs.ChannelAnnouncement msg) {
 233                 long ret = bindings.RoutingMessageHandler_handle_channel_announcement(this.ptr, msg == null ? 0 : msg.ptr);
 234                 GC.KeepAlive(this);
 235                 GC.KeepAlive(msg);
 236                 if (ret >= 0 && ret <= 4096) { return null; }
 237                 Result_boolLightningErrorZ ret_hu_conv = Result_boolLightningErrorZ.constr_from_ptr(ret);
 238                 if (this != null) { this.ptrs_to.AddLast(msg); };
 239                 return ret_hu_conv;
 240         }
 241
 242         /**
 243          * Handle an incoming channel_update message, returning true if it should be forwarded on,
 244          * false or returning an Err otherwise.
 245          */
 246         public Result_boolLightningErrorZ handle_channel_update(org.ldk.structs.ChannelUpdate msg) {
 247                 long ret = bindings.RoutingMessageHandler_handle_channel_update(this.ptr, msg == null ? 0 : msg.ptr);
 248                 GC.KeepAlive(this);
 249                 GC.KeepAlive(msg);
 250                 if (ret >= 0 && ret <= 4096) { return null; }
 251                 Result_boolLightningErrorZ ret_hu_conv = Result_boolLightningErrorZ.constr_from_ptr(ret);
 252                 if (this != null) { this.ptrs_to.AddLast(msg); };
 253                 return ret_hu_conv;
 254         }
 255
 256         /**
 257          * Gets channel announcements and updates required to dump our routing table to a remote node,
 258          * starting at the short_channel_id indicated by starting_point and including announcements
 259          * for a single channel.
 260          */
 261         public Option_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ get_next_channel_announcement(long starting_point) {
 262                 long ret = bindings.RoutingMessageHandler_get_next_channel_announcement(this.ptr, starting_point);
 263                 GC.KeepAlive(this);
 264                 GC.KeepAlive(starting_point);
 265                 if (ret >= 0 && ret <= 4096) { return null; }
 266                 org.ldk.structs.Option_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ ret_hu_conv = org.ldk.structs.Option_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ.constr_from_ptr(ret);
 267                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(this); };
 268                 return ret_hu_conv;
 269         }
 270
 271         /**
 272          * Gets a node announcement required to dump our routing table to a remote node, starting at
 273          * the node *after* the provided pubkey and including up to one announcement immediately
 274          * higher (as defined by <PublicKey as Ord>::cmp) than starting_point.
 275          * If None is provided for starting_point, we start at the first node.
 276          *
 277          * Note that starting_point (or a relevant inner pointer) may be NULL or all-0s to represent None
 278          * Note that the return value (or a relevant inner pointer) may be NULL or all-0s to represent None
 279          */
 280         public NodeAnnouncement get_next_node_announcement(byte[] starting_point) {
 281                 long ret = bindings.RoutingMessageHandler_get_next_node_announcement(this.ptr, InternalUtils.check_arr_len(starting_point, 33));
 282                 GC.KeepAlive(this);
 283                 GC.KeepAlive(starting_point);
 284                 if (ret >= 0 && ret <= 4096) { return null; }
 285                 org.ldk.structs.NodeAnnouncement ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.NodeAnnouncement(null, ret); }
 286                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(this); };
 287                 return ret_hu_conv;
 288         }
 289
 290         /**
 291          * Called when a connection is established with a peer. This can be used to
 292          * perform routing table synchronization using a strategy defined by the
 293          * implementor.
 294          *
 295          * May return an `Err(())` if the features the peer supports are not sufficient to communicate
 296          * with us. Implementors should be somewhat conservative about doing so, however, as other
 297          * message handlers may still wish to communicate with this peer.
 298          */
 299         public Result_NoneNoneZ peer_connected(byte[] their_node_id, org.ldk.structs.Init init) {
 300                 long ret = bindings.RoutingMessageHandler_peer_connected(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), init == null ? 0 : init.ptr);
 301                 GC.KeepAlive(this);
 302                 GC.KeepAlive(their_node_id);
 303                 GC.KeepAlive(init);
 304                 if (ret >= 0 && ret <= 4096) { return null; }
 305                 Result_NoneNoneZ ret_hu_conv = Result_NoneNoneZ.constr_from_ptr(ret);
 306                 if (this != null) { this.ptrs_to.AddLast(init); };
 307                 return ret_hu_conv;
 308         }
 309
 310         /**
 311          * Handles the reply of a query we initiated to learn about channels
 312          * for a given range of blocks. We can expect to receive one or more
 313          * replies to a single query.
 314          */
 315         public Result_NoneLightningErrorZ handle_reply_channel_range(byte[] their_node_id, org.ldk.structs.ReplyChannelRange msg) {
 316                 long ret = bindings.RoutingMessageHandler_handle_reply_channel_range(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 317                 GC.KeepAlive(this);
 318                 GC.KeepAlive(their_node_id);
 319                 GC.KeepAlive(msg);
 320                 if (ret >= 0 && ret <= 4096) { return null; }
 321                 Result_NoneLightningErrorZ ret_hu_conv = Result_NoneLightningErrorZ.constr_from_ptr(ret);
 322                 if (this != null) { this.ptrs_to.AddLast(msg); };
 323                 return ret_hu_conv;
 324         }
 325
 326         /**
 327          * Handles the reply of a query we initiated asking for routing gossip
 328          * messages for a list of channels. We should receive this message when
 329          * a node has completed its best effort to send us the pertaining routing
 330          * gossip messages.
 331          */
 332         public Result_NoneLightningErrorZ handle_reply_short_channel_ids_end(byte[] their_node_id, org.ldk.structs.ReplyShortChannelIdsEnd msg) {
 333                 long ret = bindings.RoutingMessageHandler_handle_reply_short_channel_ids_end(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 334                 GC.KeepAlive(this);
 335                 GC.KeepAlive(their_node_id);
 336                 GC.KeepAlive(msg);
 337                 if (ret >= 0 && ret <= 4096) { return null; }
 338                 Result_NoneLightningErrorZ ret_hu_conv = Result_NoneLightningErrorZ.constr_from_ptr(ret);
 339                 if (this != null) { this.ptrs_to.AddLast(msg); };
 340                 return ret_hu_conv;
 341         }
 342
 343         /**
 344          * Handles when a peer asks us to send a list of short_channel_ids
 345          * for the requested range of blocks.
 346          */
 347         public Result_NoneLightningErrorZ handle_query_channel_range(byte[] their_node_id, org.ldk.structs.QueryChannelRange msg) {
 348                 long ret = bindings.RoutingMessageHandler_handle_query_channel_range(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 349                 GC.KeepAlive(this);
 350                 GC.KeepAlive(their_node_id);
 351                 GC.KeepAlive(msg);
 352                 if (ret >= 0 && ret <= 4096) { return null; }
 353                 Result_NoneLightningErrorZ ret_hu_conv = Result_NoneLightningErrorZ.constr_from_ptr(ret);
 354                 if (this != null) { this.ptrs_to.AddLast(msg); };
 355                 return ret_hu_conv;
 356         }
 357
 358         /**
 359          * Handles when a peer asks us to send routing gossip messages for a
 360          * list of short_channel_ids.
 361          */
 362         public Result_NoneLightningErrorZ handle_query_short_channel_ids(byte[] their_node_id, org.ldk.structs.QueryShortChannelIds msg) {
 363                 long ret = bindings.RoutingMessageHandler_handle_query_short_channel_ids(this.ptr, InternalUtils.check_arr_len(their_node_id, 33), msg == null ? 0 : msg.ptr);
 364                 GC.KeepAlive(this);
 365                 GC.KeepAlive(their_node_id);
 366                 GC.KeepAlive(msg);
 367                 if (ret >= 0 && ret <= 4096) { return null; }
 368                 Result_NoneLightningErrorZ ret_hu_conv = Result_NoneLightningErrorZ.constr_from_ptr(ret);
 369                 if (this != null) { this.ptrs_to.AddLast(msg); };
 370                 return ret_hu_conv;
 371         }
 372
 373         /**
 374          * Gets the node feature flags which this handler itself supports. All available handlers are
 375          * queried similarly and their feature flags are OR'd together to form the [`NodeFeatures`]
 376          * which are broadcasted in our [`NodeAnnouncement`] message.
 377          */
 378         public NodeFeatures provided_node_features() {
 379                 long ret = bindings.RoutingMessageHandler_provided_node_features(this.ptr);
 380                 GC.KeepAlive(this);
 381                 if (ret >= 0 && ret <= 4096) { return null; }
 382                 org.ldk.structs.NodeFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.NodeFeatures(null, ret); }
 383                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(this); };
 384                 return ret_hu_conv;
 385         }
 386
 387         /**
 388          * Gets the init feature flags which should be sent to the given peer. All available handlers
 389          * are queried similarly and their feature flags are OR'd together to form the [`InitFeatures`]
 390          * which are sent in our [`Init`] message.
 391          *
 392          * Note that this method is called before [`Self::peer_connected`].
 393          */
 394         public InitFeatures provided_init_features(byte[] their_node_id) {
 395                 long ret = bindings.RoutingMessageHandler_provided_init_features(this.ptr, InternalUtils.check_arr_len(their_node_id, 33));
 396                 GC.KeepAlive(this);
 397                 GC.KeepAlive(their_node_id);
 398                 if (ret >= 0 && ret <= 4096) { return null; }
 399                 org.ldk.structs.InitFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.InitFeatures(null, ret); }
 400                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(this); };
 401                 return ret_hu_conv;
 402         }
 403
 404 }
 405 } } }