_ Git - ldk-java/blob - c_sharp/src/org/ldk/structs/CustomOnionMessageHandler.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  * Handler for custom onion messages. If you are using [`SimpleArcOnionMessenger`],
  10  * [`SimpleRefOnionMessenger`], or prefer to ignore inbound custom onion messages,
  11  * [`IgnoringMessageHandler`] must be provided to [`OnionMessenger::new`]. Otherwise, a custom
  12  * implementation of this trait must be provided, with [`CustomMessage`] specifying the supported
  13  * message types.
  14  *
  15  * See [`OnionMessenger`] for example usage.
  16  *
  17  * [`IgnoringMessageHandler`]: crate::ln::peer_handler::IgnoringMessageHandler
  18  * [`CustomMessage`]: Self::CustomMessage
  19  */
  20 public class CustomOnionMessageHandler : CommonBase {
  21         internal readonly bindings.LDKCustomOnionMessageHandler bindings_instance;
  22         internal CustomOnionMessageHandler(object _dummy, long ptr) : base(ptr) { bindings_instance = null; }
  23         private CustomOnionMessageHandler(bindings.LDKCustomOnionMessageHandler arg) : base(bindings.LDKCustomOnionMessageHandler_new(arg)) {
  24                 this.ptrs_to.AddLast(arg);
  25                 this.bindings_instance = arg;
  26         }
  27         ~CustomOnionMessageHandler() {
  28                 if (ptr != 0) { bindings.CustomOnionMessageHandler_free(ptr); }
  29         }
  30
  31         public interface CustomOnionMessageHandlerInterface {
  32                 /**
  33                  * Called with the custom message that was received, returning a response to send, if any.
  34                  */
  35                 Option_CustomOnionMessageContentsZ handle_custom_message(CustomOnionMessageContents _msg);
  36                 /**
  37                  * Read a custom message of type `message_type` from `buffer`, returning `Ok(None)` if the
  38                  * message type is unknown.
  39                  */
  40                 Result_COption_CustomOnionMessageContentsZDecodeErrorZ read_custom_message(long _message_type, byte[] _buffer);
  41         }
  42         private class LDKCustomOnionMessageHandlerHolder { internal CustomOnionMessageHandler held; }
  43         private class LDKCustomOnionMessageHandlerImpl : bindings.LDKCustomOnionMessageHandler {
  44                 internal LDKCustomOnionMessageHandlerImpl(CustomOnionMessageHandlerInterface arg, LDKCustomOnionMessageHandlerHolder impl_holder) { this.arg = arg; this.impl_holder = impl_holder; }
  45                 private CustomOnionMessageHandlerInterface arg;
  46                 private LDKCustomOnionMessageHandlerHolder impl_holder;
  47                 public long handle_custom_message(long _msg) {
  48                         CustomOnionMessageContents ret_hu_conv = new CustomOnionMessageContents(null, _msg);
  49                         if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(this); };
  50                         Option_CustomOnionMessageContentsZ ret = arg.handle_custom_message(ret_hu_conv);
  51                                 GC.KeepAlive(arg);
  52                         long result = ret == null ? 0 : ret.clone_ptr();
  53                         if (impl_holder.held != null) { impl_holder.held.ptrs_to.AddLast(ret); };
  54                         return result;
  55                 }
  56                 public long read_custom_message(long _message_type, byte[] _buffer) {
  57                         Result_COption_CustomOnionMessageContentsZDecodeErrorZ ret = arg.read_custom_message(_message_type, _buffer);
  58                                 GC.KeepAlive(arg);
  59                         long result = ret == null ? 0 : ret.clone_ptr();
  60                         return result;
  61                 }
  62         }
  63         public static CustomOnionMessageHandler new_impl(CustomOnionMessageHandlerInterface arg) {
  64                 LDKCustomOnionMessageHandlerHolder impl_holder = new LDKCustomOnionMessageHandlerHolder();
  65                 impl_holder.held = new CustomOnionMessageHandler(new LDKCustomOnionMessageHandlerImpl(arg, impl_holder));
  66                 return impl_holder.held;
  67         }
  68         /**
  69          * Called with the custom message that was received, returning a response to send, if any.
  70          */
  71         public Option_CustomOnionMessageContentsZ handle_custom_message(org.ldk.structs.CustomOnionMessageContents msg) {
  72                 long ret = bindings.CustomOnionMessageHandler_handle_custom_message(this.ptr, msg.ptr);
  73                 GC.KeepAlive(this);
  74                 GC.KeepAlive(msg);
  75                 if (ret >= 0 && ret <= 4096) { return null; }
  76                 org.ldk.structs.Option_CustomOnionMessageContentsZ ret_hu_conv = org.ldk.structs.Option_CustomOnionMessageContentsZ.constr_from_ptr(ret);
  77                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(this); };
  78                 if (this != null) { this.ptrs_to.AddLast(msg); };
  79                 return ret_hu_conv;
  80         }
  81
  82         /**
  83          * Read a custom message of type `message_type` from `buffer`, returning `Ok(None)` if the
  84          * message type is unknown.
  85          */
  86         public Result_COption_CustomOnionMessageContentsZDecodeErrorZ read_custom_message(long message_type, byte[] buffer) {
  87                 long ret = bindings.CustomOnionMessageHandler_read_custom_message(this.ptr, message_type, buffer);
  88                 GC.KeepAlive(this);
  89                 GC.KeepAlive(message_type);
  90                 GC.KeepAlive(buffer);
  91                 if (ret >= 0 && ret <= 4096) { return null; }
  92                 Result_COption_CustomOnionMessageContentsZDecodeErrorZ ret_hu_conv = Result_COption_CustomOnionMessageContentsZDecodeErrorZ.constr_from_ptr(ret);
  93                 return ret_hu_conv;
  94         }
  95
  96 }
  97 } } }