1 package org.ldk.structs;
3 import org.ldk.impl.bindings;
4 import org.ldk.enums.*;
6 import java.util.Arrays;
7 import java.lang.ref.Reference;
8 import javax.annotation.Nullable;
11 * A trait which should be implemented to provide feerate information on a number of time
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).
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;
26 @Override @SuppressWarnings("deprecation")
27 protected void finalize() throws Throwable {
28 if (ptr != 0) { bindings.FeeEstimator_free(ptr); } super.finalize();
31 public static interface FeeEstimatorInterface {
33 * Gets estimated satoshis of fee required per 1000 Weight-Units.
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).
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)
42 int get_est_sat_per_1000_weight(ConfirmationTarget confirmation_target);
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);
53 return impl_holder.held;
56 * Gets estimated satoshis of fee required per 1000 Weight-Units.
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).
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)
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);