_ Git - ldk-java/blob - c_sharp/src/org/ldk/structs/Listen.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  * The `Listen` trait is used to notify when blocks have been connected or disconnected from the
  10  * chain.
  11  *
  12  * Useful when needing to replay chain data upon startup or as new chain events occur. Clients
  13  * sourcing chain data using a block-oriented API should prefer this interface over [`Confirm`].
  14  * Such clients fetch the entire header chain whereas clients using [`Confirm`] only fetch headers
  15  * when needed.
  16  *
  17  * By using [`Listen::filtered_block_connected`] this interface supports clients fetching the
  18  * entire header chain and only blocks with matching transaction data using BIP 157 filters or
  19  * other similar filtering.
  20  */
  21 public class Listen : CommonBase {
  22         internal readonly bindings.LDKListen bindings_instance;
  23         internal Listen(object _dummy, long ptr) : base(ptr) { bindings_instance = null; }
  24         private Listen(bindings.LDKListen arg) : base(bindings.LDKListen_new(arg)) {
  25                 this.ptrs_to.AddLast(arg);
  26                 this.bindings_instance = arg;
  27         }
  28         ~Listen() {
  29                 if (ptr != 0) { bindings.Listen_free(ptr); }
  30         }
  31
  32         public interface ListenInterface {
  33                 /**
  34                  * Notifies the listener that a block was added at the given height, with the transaction data
  35                  * possibly filtered.
  36                  */
  37                 void filtered_block_connected(byte[] _header, TwoTuple_usizeTransactionZ[] _txdata, int _height);
  38                 /**
  39                  * Notifies the listener that a block was added at the given height.
  40                  */
  41                 void block_connected(byte[] _block, int _height);
  42                 /**
  43                  * Notifies the listener that a block was removed at the given height.
  44                  */
  45                 void block_disconnected(byte[] _header, int _height);
  46         }
  47         private class LDKListenHolder { internal Listen held; }
  48         private class LDKListenImpl : bindings.LDKListen {
  49                 internal LDKListenImpl(ListenInterface arg, LDKListenHolder impl_holder) { this.arg = arg; this.impl_holder = impl_holder; }
  50                 private ListenInterface arg;
  51                 private LDKListenHolder impl_holder;
  52                 public void filtered_block_connected(byte[] _header, long[] _txdata, int _height) {
  53                         int _txdata_conv_28_len = _txdata.Length;
  54                         TwoTuple_usizeTransactionZ[] _txdata_conv_28_arr = new TwoTuple_usizeTransactionZ[_txdata_conv_28_len];
  55                         for (int c = 0; c < _txdata_conv_28_len; c++) {
  56                                 long _txdata_conv_28 = _txdata[c];
  57                                 TwoTuple_usizeTransactionZ _txdata_conv_28_hu_conv = new TwoTuple_usizeTransactionZ(null, _txdata_conv_28);
  58                                 if (_txdata_conv_28_hu_conv != null) { _txdata_conv_28_hu_conv.ptrs_to.AddLast(this); };
  59                                 _txdata_conv_28_arr[c] = _txdata_conv_28_hu_conv;
  60                         }
  61                         arg.filtered_block_connected(_header, _txdata_conv_28_arr, _height);
  62                                 GC.KeepAlive(arg);
  63                 }
  64                 public void block_connected(byte[] _block, int _height) {
  65                         arg.block_connected(_block, _height);
  66                                 GC.KeepAlive(arg);
  67                 }
  68                 public void block_disconnected(byte[] _header, int _height) {
  69                         arg.block_disconnected(_header, _height);
  70                                 GC.KeepAlive(arg);
  71                 }
  72         }
  73         public static Listen new_impl(ListenInterface arg) {
  74                 LDKListenHolder impl_holder = new LDKListenHolder();
  75                 impl_holder.held = new Listen(new LDKListenImpl(arg, impl_holder));
  76                 return impl_holder.held;
  77         }
  78         /**
  79          * Notifies the listener that a block was added at the given height, with the transaction data
  80          * possibly filtered.
  81          */
  82         public void filtered_block_connected(byte[] header, TwoTuple_usizeTransactionZ[] txdata, int height) {
  83                 bindings.Listen_filtered_block_connected(this.ptr, InternalUtils.check_arr_len(header, 80), txdata != null ? InternalUtils.mapArray(txdata, txdata_conv_28 => txdata_conv_28 != null ? txdata_conv_28.ptr : 0) : null, height);
  84                 GC.KeepAlive(this);
  85                 GC.KeepAlive(header);
  86                 GC.KeepAlive(txdata);
  87                 GC.KeepAlive(height);
  88         }
  89
  90         /**
  91          * Notifies the listener that a block was added at the given height.
  92          */
  93         public void block_connected(byte[] block, int height) {
  94                 bindings.Listen_block_connected(this.ptr, block, height);
  95                 GC.KeepAlive(this);
  96                 GC.KeepAlive(block);
  97                 GC.KeepAlive(height);
  98         }
  99
 100         /**
 101          * Notifies the listener that a block was removed at the given height.
 102          */
 103         public void block_disconnected(byte[] header, int height) {
 104                 bindings.Listen_block_disconnected(this.ptr, InternalUtils.check_arr_len(header, 80), height);
 105                 GC.KeepAlive(this);
 106                 GC.KeepAlive(header);
 107                 GC.KeepAlive(height);
 108         }
 109
 110 }
 111 } } }