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