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

   1
   2 using org.ldk.impl;
   3 using org.ldk.enums;
   4 using org.ldk.util;
   5 using System;
   6
   7 namespace org { namespace ldk { namespace structs {
   8
   9
  10
  11 /** An implementation of OutputSpender */
  12 public interface OutputSpenderInterface {
  13         /**Creates a [`Transaction`] which spends the given descriptors to the given outputs, plus an
  14          * output to the given change destination (if sufficient change value remains). The
  15          * transaction will have a feerate, at least, of the given value.
  16          *
  17          * The `locktime` argument is used to set the transaction's locktime. If `None`, the
  18          * transaction will have a locktime of 0. It it recommended to set this to the current block
  19          * height to avoid fee sniping, unless you have some specific reason to use a different
  20          * locktime.
  21          *
  22          * Returns `Err(())` if the output value is greater than the input value minus required fee,
  23          * if a descriptor was duplicated, or if an output descriptor `script_pubkey`
  24          * does not match the one we can spend.
  25          */
  26         Result_TransactionNoneZ spend_spendable_outputs(SpendableOutputDescriptor[] descriptors, TxOut[] outputs, byte[] change_destination_script, int feerate_sat_per_1000_weight, Option_u32Z locktime);
  27 }
  28
  29 /**
  30  * A trait that describes a wallet capable of creating a spending [`Transaction`] from a set of
  31  * [`SpendableOutputDescriptor`]s.
  32  */
  33 public class OutputSpender : CommonBase {
  34         internal bindings.LDKOutputSpender bindings_instance;
  35         internal long instance_idx;
  36
  37         internal OutputSpender(object _dummy, long ptr) : base(ptr) { bindings_instance = null; }
  38         ~OutputSpender() {
  39                 if (ptr != 0) { bindings.OutputSpender_free(ptr); }
  40         }
  41
  42         private class LDKOutputSpenderHolder { internal OutputSpender held; }
  43         private class LDKOutputSpenderImpl : bindings.LDKOutputSpender {
  44                 internal LDKOutputSpenderImpl(OutputSpenderInterface arg, LDKOutputSpenderHolder impl_holder) { this.arg = arg; this.impl_holder = impl_holder; }
  45                 private OutputSpenderInterface arg;
  46                 private LDKOutputSpenderHolder impl_holder;
  47                 public long spend_spendable_outputs(long _descriptors, long _outputs, long _change_destination_script, int _feerate_sat_per_1000_weight, long _locktime) {
  48                         int _descriptors_conv_27_len = InternalUtils.getArrayLength(_descriptors);
  49                         SpendableOutputDescriptor[] _descriptors_conv_27_arr = new SpendableOutputDescriptor[_descriptors_conv_27_len];
  50                         for (int b = 0; b < _descriptors_conv_27_len; b++) {
  51                                 long _descriptors_conv_27 = InternalUtils.getU64ArrayElem(_descriptors, b);
  52                                 org.ldk.structs.SpendableOutputDescriptor _descriptors_conv_27_hu_conv = org.ldk.structs.SpendableOutputDescriptor.constr_from_ptr(_descriptors_conv_27);
  53                                 if (_descriptors_conv_27_hu_conv != null) { _descriptors_conv_27_hu_conv.ptrs_to.AddLast(this); };
  54                                 _descriptors_conv_27_arr[b] = _descriptors_conv_27_hu_conv;
  55                         }
  56                         bindings.free_buffer(_descriptors);
  57                         int _outputs_conv_7_len = InternalUtils.getArrayLength(_outputs);
  58                         TxOut[] _outputs_conv_7_arr = new TxOut[_outputs_conv_7_len];
  59                         for (int h = 0; h < _outputs_conv_7_len; h++) {
  60                                 long _outputs_conv_7 = InternalUtils.getU64ArrayElem(_outputs, h);
  61                                 TxOut _outputs_conv_7_conv = new TxOut(null, _outputs_conv_7);
  62                                 _outputs_conv_7_arr[h] = _outputs_conv_7_conv;
  63                         }
  64                         bindings.free_buffer(_outputs);
  65                         byte[] _change_destination_script_conv = InternalUtils.decodeUint8Array(_change_destination_script);
  66                         org.ldk.structs.Option_u32Z _locktime_hu_conv = org.ldk.structs.Option_u32Z.constr_from_ptr(_locktime);
  67                         if (_locktime_hu_conv != null) { _locktime_hu_conv.ptrs_to.AddLast(this); };
  68                         Result_TransactionNoneZ ret = arg.spend_spendable_outputs(_descriptors_conv_27_arr, _outputs_conv_7_arr, _change_destination_script_conv, _feerate_sat_per_1000_weight, _locktime_hu_conv);
  69                                 GC.KeepAlive(arg);
  70                         long result = ret.clone_ptr();
  71                         return result;
  72                 }
  73         }
  74
  75         /** Creates a new instance of OutputSpender from a given implementation */
  76         public static OutputSpender new_impl(OutputSpenderInterface arg) {
  77                 LDKOutputSpenderHolder impl_holder = new LDKOutputSpenderHolder();
  78                 LDKOutputSpenderImpl impl = new LDKOutputSpenderImpl(arg, impl_holder);
  79                 long[] ptr_idx = bindings.LDKOutputSpender_new(impl);
  80
  81                 impl_holder.held = new OutputSpender(null, ptr_idx[0]);
  82                 impl_holder.held.instance_idx = ptr_idx[1];
  83                 impl_holder.held.bindings_instance = impl;
  84                 return impl_holder.held;
  85         }
  86
  87         /**
  88          * Creates a [`Transaction`] which spends the given descriptors to the given outputs, plus an
  89          * output to the given change destination (if sufficient change value remains). The
  90          * transaction will have a feerate, at least, of the given value.
  91          *
  92          * The `locktime` argument is used to set the transaction's locktime. If `None`, the
  93          * transaction will have a locktime of 0. It it recommended to set this to the current block
  94          * height to avoid fee sniping, unless you have some specific reason to use a different
  95          * locktime.
  96          *
  97          * Returns `Err(())` if the output value is greater than the input value minus required fee,
  98          * if a descriptor was duplicated, or if an output descriptor `script_pubkey`
  99          * does not match the one we can spend.
 100          */
 101         public Result_TransactionNoneZ spend_spendable_outputs(SpendableOutputDescriptor[] descriptors, TxOut[] outputs, byte[] change_destination_script, int feerate_sat_per_1000_weight, org.ldk.structs.Option_u32Z locktime) {
 102                 long ret = bindings.OutputSpender_spend_spendable_outputs(this.ptr, InternalUtils.encodeUint64Array(InternalUtils.mapArray(descriptors, descriptors_conv_27 => descriptors_conv_27.ptr)), InternalUtils.encodeUint64Array(InternalUtils.mapArray(outputs, outputs_conv_7 => outputs_conv_7.ptr)), InternalUtils.encodeUint8Array(change_destination_script), feerate_sat_per_1000_weight, locktime.ptr);
 103                 GC.KeepAlive(this);
 104                 GC.KeepAlive(descriptors);
 105                 GC.KeepAlive(outputs);
 106                 GC.KeepAlive(change_destination_script);
 107                 GC.KeepAlive(feerate_sat_per_1000_weight);
 108                 GC.KeepAlive(locktime);
 109                 if (ret >= 0 && ret <= 4096) { return null; }
 110                 Result_TransactionNoneZ ret_hu_conv = Result_TransactionNoneZ.constr_from_ptr(ret);
 111                 foreach (SpendableOutputDescriptor descriptors_conv_27 in descriptors) { if (this != null) { this.ptrs_to.AddLast(descriptors_conv_27); }; };
 112                 if (this != null) { this.ptrs_to.AddLast(locktime); };
 113                 return ret_hu_conv;
 114         }
 115
 116 }
 117 } } }