_ Git - ldk-java/blob - c_sharp/src/org/ldk/structs/ScoreLookUp.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 ScoreLookUp */
  12 public interface ScoreLookUpInterface {
  13         /**Returns the fee in msats willing to be paid to avoid routing `send_amt_msat` through the
  14          * given channel in the direction from `source` to `target`.
  15          *
  16          * The channel's capacity (less any other MPP parts that are also being considered for use in
  17          * the same payment) is given by `capacity_msat`. It may be determined from various sources
  18          * such as a chain data, network gossip, or invoice hints. For invoice hints, a capacity near
  19          * [`u64::max_value`] is given to indicate sufficient capacity for the invoice's full amount.
  20          * Thus, implementations should be overflow-safe.
  21          */
  22         long channel_penalty_msat(CandidateRouteHop candidate, ChannelUsage usage, ProbabilisticScoringFeeParameters score_params);
  23 }
  24
  25 /**
  26  * An interface used to score payment channels for path finding.
  27  *
  28  * `ScoreLookUp` is used to determine the penalty for a given channel.
  29  *
  30  * Scoring is in terms of fees willing to be paid in order to avoid routing through a channel.
  31  */
  32 public class ScoreLookUp : CommonBase {
  33         internal bindings.LDKScoreLookUp bindings_instance;
  34         internal long instance_idx;
  35
  36         internal ScoreLookUp(object _dummy, long ptr) : base(ptr) { bindings_instance = null; }
  37         ~ScoreLookUp() {
  38                 if (ptr != 0) { bindings.ScoreLookUp_free(ptr); }
  39         }
  40
  41         private class LDKScoreLookUpHolder { internal ScoreLookUp held; }
  42         private class LDKScoreLookUpImpl : bindings.LDKScoreLookUp {
  43                 internal LDKScoreLookUpImpl(ScoreLookUpInterface arg, LDKScoreLookUpHolder impl_holder) { this.arg = arg; this.impl_holder = impl_holder; }
  44                 private ScoreLookUpInterface arg;
  45                 private LDKScoreLookUpHolder impl_holder;
  46                 public long channel_penalty_msat(long _candidate, long _usage, long _score_params) {
  47                         CandidateRouteHop _candidate_hu_conv = CandidateRouteHop.constr_from_ptr(_candidate);
  48                         org.ldk.structs.ChannelUsage _usage_hu_conv = null; if (_usage < 0 || _usage > 4096) { _usage_hu_conv = new org.ldk.structs.ChannelUsage(null, _usage); }
  49                         if (_usage_hu_conv != null) { _usage_hu_conv.ptrs_to.AddLast(this); };
  50                         org.ldk.structs.ProbabilisticScoringFeeParameters _score_params_hu_conv = null; if (_score_params < 0 || _score_params > 4096) { _score_params_hu_conv = new org.ldk.structs.ProbabilisticScoringFeeParameters(null, _score_params); }
  51                         long ret = arg.channel_penalty_msat(_candidate_hu_conv, _usage_hu_conv, _score_params_hu_conv);
  52                                 GC.KeepAlive(arg);
  53                         return ret;
  54                 }
  55         }
  56
  57         /** Creates a new instance of ScoreLookUp from a given implementation */
  58         public static ScoreLookUp new_impl(ScoreLookUpInterface arg) {
  59                 LDKScoreLookUpHolder impl_holder = new LDKScoreLookUpHolder();
  60                 LDKScoreLookUpImpl impl = new LDKScoreLookUpImpl(arg, impl_holder);
  61                 long[] ptr_idx = bindings.LDKScoreLookUp_new(impl);
  62
  63                 impl_holder.held = new ScoreLookUp(null, ptr_idx[0]);
  64                 impl_holder.held.instance_idx = ptr_idx[1];
  65                 impl_holder.held.bindings_instance = impl;
  66                 return impl_holder.held;
  67         }
  68
  69         /**
  70          * Returns the fee in msats willing to be paid to avoid routing `send_amt_msat` through the
  71          * given channel in the direction from `source` to `target`.
  72          *
  73          * The channel's capacity (less any other MPP parts that are also being considered for use in
  74          * the same payment) is given by `capacity_msat`. It may be determined from various sources
  75          * such as a chain data, network gossip, or invoice hints. For invoice hints, a capacity near
  76          * [`u64::max_value`] is given to indicate sufficient capacity for the invoice's full amount.
  77          * Thus, implementations should be overflow-safe.
  78          */
  79         public long channel_penalty_msat(org.ldk.structs.CandidateRouteHop candidate, org.ldk.structs.ChannelUsage usage, org.ldk.structs.ProbabilisticScoringFeeParameters score_params) {
  80                 long ret = bindings.ScoreLookUp_channel_penalty_msat(this.ptr, candidate == null ? 0 : candidate.ptr, usage == null ? 0 : usage.ptr, score_params == null ? 0 : score_params.ptr);
  81                 GC.KeepAlive(this);
  82                 GC.KeepAlive(candidate);
  83                 GC.KeepAlive(usage);
  84                 GC.KeepAlive(score_params);
  85                 if (this != null) { this.ptrs_to.AddLast(usage); };
  86                 if (this != null) { this.ptrs_to.AddLast(score_params); };
  87                 return ret;
  88         }
  89
  90 }
  91 } } }