_ Git - ldk-java/blob - src/main/java/org/ldk/structs/FeeEstimator.java

   1 package org.ldk.structs;
   2
   3 import org.ldk.impl.bindings;
   4 import org.ldk.enums.*;
   5 import org.ldk.util.*;
   6 import java.util.Arrays;
   7 import java.lang.ref.Reference;
   8 import javax.annotation.Nullable;
   9
  10 /**
  11  * A trait which should be implemented to provide feerate information on a number of time
  12  * horizons.
  13  *
  14  * Note that all of the functions implemented here *must* be reentrant-safe (obviously - they're
  15  * called from inside the library in response to chain events, P2P events, or timer events).
  16  */
  17 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
  18 public class FeeEstimator extends CommonBase {
  19         final bindings.LDKFeeEstimator bindings_instance;
  20         FeeEstimator(Object _dummy, long ptr) { super(ptr); bindings_instance = null; }
  21         private FeeEstimator(bindings.LDKFeeEstimator arg) {
  22                 super(bindings.LDKFeeEstimator_new(arg));
  23                 this.ptrs_to.add(arg);
  24                 this.bindings_instance = arg;
  25         }
  26         @Override @SuppressWarnings("deprecation")
  27         protected void finalize() throws Throwable {
  28                 if (ptr != 0) { bindings.FeeEstimator_free(ptr); } super.finalize();
  29         }
  30
  31         public static interface FeeEstimatorInterface {
  32                 /**
  33                  * Gets estimated satoshis of fee required per 1000 Weight-Units.
  34                  *
  35                  * Must return a value no smaller than 253 (ie 1 satoshi-per-byte rounded up to ensure later
  36                  * round-downs don't put us below 1 satoshi-per-byte).
  37                  *
  38                  * This method can be implemented with the following unit conversions:
  39                  * max(satoshis-per-byte * 250, 253)
  40                  * max(satoshis-per-kbyte / 4, 253)
  41                  */
  42                 int get_est_sat_per_1000_weight(ConfirmationTarget confirmation_target);
  43         }
  44         private static class LDKFeeEstimatorHolder { FeeEstimator held; }
  45         public static FeeEstimator new_impl(FeeEstimatorInterface arg) {
  46                 final LDKFeeEstimatorHolder impl_holder = new LDKFeeEstimatorHolder();
  47                 impl_holder.held = new FeeEstimator(new bindings.LDKFeeEstimator() {
  48                         @Override public int get_est_sat_per_1000_weight(ConfirmationTarget confirmation_target) {
  49                                 int ret = arg.get_est_sat_per_1000_weight(confirmation_target);
  50                                 return ret;
  51                         }
  52                 });
  53                 return impl_holder.held;
  54         }
  55         /**
  56          * Gets estimated satoshis of fee required per 1000 Weight-Units.
  57          *
  58          * Must return a value no smaller than 253 (ie 1 satoshi-per-byte rounded up to ensure later
  59          * round-downs don't put us below 1 satoshi-per-byte).
  60          *
  61          * This method can be implemented with the following unit conversions:
  62          * max(satoshis-per-byte * 250, 253)
  63          * max(satoshis-per-kbyte / 4, 253)
  64          */
  65         public int get_est_sat_per_1000_weight(org.ldk.enums.ConfirmationTarget confirmation_target) {
  66                 int ret = bindings.FeeEstimator_get_est_sat_per_1000_weight(this.ptr, confirmation_target);
  67                 Reference.reachabilityFence(this);
  68                 Reference.reachabilityFence(confirmation_target);
  69                 return ret;
  70         }
  71
  72 }