+
using org.ldk.impl;
using org.ldk.enums;
using org.ldk.util;
namespace org { namespace ldk { namespace structs {
+
+
+/** An implementation of CoinSelectionSource */
+public interface CoinSelectionSourceInterface {
+ /**Performs coin selection of a set of UTXOs, with at least 1 confirmation each, that are
+ * available to spend. Implementations are free to pick their coin selection algorithm of
+ * choice, as long as the following requirements are met:
+ *
+ * 1. `must_spend` contains a set of [`Input`]s that must be included in the transaction
+ * throughout coin selection, but must not be returned as part of the result.
+ * 2. `must_pay_to` contains a set of [`TxOut`]s that must be included in the transaction
+ * throughout coin selection. In some cases, like when funding an anchor transaction, this
+ * set is empty. Implementations should ensure they handle this correctly on their end,
+ * e.g., Bitcoin Core's `fundrawtransaction` RPC requires at least one output to be
+ * provided, in which case a zero-value empty OP_RETURN output can be used instead.
+ * 3. Enough inputs must be selected/contributed for the resulting transaction (including the
+ * inputs and outputs noted above) to meet `target_feerate_sat_per_1000_weight`.
+ *
+ * Implementations must take note that [`Input::satisfaction_weight`] only tracks the weight of
+ * the input's `script_sig` and `witness`. Some wallets, like Bitcoin Core's, may require
+ * providing the full input weight. Failing to do so may lead to underestimating fee bumps and
+ * delaying block inclusion.
+ *
+ * The `claim_id` must map to the set of external UTXOs assigned to the claim, such that they
+ * can be re-used within new fee-bumped iterations of the original claiming transaction,
+ * ensuring that claims don't double spend each other. If a specific `claim_id` has never had a
+ * transaction associated with it, and all of the available UTXOs have already been assigned to
+ * other claims, implementations must be willing to double spend their UTXOs. The choice of
+ * which UTXOs to double spend is left to the implementation, but it must strive to keep the
+ * set of other claims being double spent to a minimum.
+ */
+ Result_CoinSelectionNoneZ select_confirmed_utxos(byte[] claim_id, Input[] must_spend, TxOut[] must_pay_to, int target_feerate_sat_per_1000_weight);
+ /**Signs and provides the full witness for all inputs within the transaction known to the
+ * trait (i.e., any provided via [`CoinSelectionSource::select_confirmed_utxos`]).
+ */
+ Result_TransactionNoneZ sign_tx(byte[] tx);
+}
+
/**
* An abstraction over a bitcoin wallet that can perform coin selection over a set of UTXOs and can
* sign for them. The coin selection method aims to mimic Bitcoin Core's `fundrawtransaction` RPC,
* which can provide a default implementation of this trait when used with [`Wallet`].
*/
public class CoinSelectionSource : CommonBase {
- internal readonly bindings.LDKCoinSelectionSource bindings_instance;
+ internal bindings.LDKCoinSelectionSource bindings_instance;
+ internal long instance_idx;
+
internal CoinSelectionSource(object _dummy, long ptr) : base(ptr) { bindings_instance = null; }
- private CoinSelectionSource(bindings.LDKCoinSelectionSource arg) : base(bindings.LDKCoinSelectionSource_new(arg)) {
- this.ptrs_to.AddLast(arg);
- this.bindings_instance = arg;
- }
~CoinSelectionSource() {
if (ptr != 0) { bindings.CoinSelectionSource_free(ptr); }
}
- public interface CoinSelectionSourceInterface {
- /**
- * Performs coin selection of a set of UTXOs, with at least 1 confirmation each, that are
- * available to spend. Implementations are free to pick their coin selection algorithm of
- * choice, as long as the following requirements are met:
- *
- * 1. `must_spend` contains a set of [`Input`]s that must be included in the transaction
- * throughout coin selection, but must not be returned as part of the result.
- * 2. `must_pay_to` contains a set of [`TxOut`]s that must be included in the transaction
- * throughout coin selection. In some cases, like when funding an anchor transaction, this
- * set is empty. Implementations should ensure they handle this correctly on their end,
- * e.g., Bitcoin Core's `fundrawtransaction` RPC requires at least one output to be
- * provided, in which case a zero-value empty OP_RETURN output can be used instead.
- * 3. Enough inputs must be selected/contributed for the resulting transaction (including the
- * inputs and outputs noted above) to meet `target_feerate_sat_per_1000_weight`.
- *
- * Implementations must take note that [`Input::satisfaction_weight`] only tracks the weight of
- * the input's `script_sig` and `witness`. Some wallets, like Bitcoin Core's, may require
- * providing the full input weight. Failing to do so may lead to underestimating fee bumps and
- * delaying block inclusion.
- *
- * The `claim_id` must map to the set of external UTXOs assigned to the claim, such that they
- * can be re-used within new fee-bumped iterations of the original claiming transaction,
- * ensuring that claims don't double spend each other. If a specific `claim_id` has never had a
- * transaction associated with it, and all of the available UTXOs have already been assigned to
- * other claims, implementations must be willing to double spend their UTXOs. The choice of
- * which UTXOs to double spend is left to the implementation, but it must strive to keep the
- * set of other claims being double spent to a minimum.
- */
- Result_CoinSelectionNoneZ select_confirmed_utxos(byte[] _claim_id, Input[] _must_spend, TxOut[] _must_pay_to, int _target_feerate_sat_per_1000_weight);
- /**
- * Signs and provides the full witness for all inputs within the transaction known to the
- * trait (i.e., any provided via [`CoinSelectionSource::select_confirmed_utxos`]).
- */
- Result_TransactionNoneZ sign_tx(byte[] _tx);
- }
private class LDKCoinSelectionSourceHolder { internal CoinSelectionSource held; }
private class LDKCoinSelectionSourceImpl : bindings.LDKCoinSelectionSource {
internal LDKCoinSelectionSourceImpl(CoinSelectionSourceInterface arg, LDKCoinSelectionSourceHolder impl_holder) { this.arg = arg; this.impl_holder = impl_holder; }
private CoinSelectionSourceInterface arg;
private LDKCoinSelectionSourceHolder impl_holder;
- public long select_confirmed_utxos(byte[] _claim_id, long[] _must_spend, long[] _must_pay_to, int _target_feerate_sat_per_1000_weight) {
- int _must_spend_conv_7_len = _must_spend.Length;
+ public long select_confirmed_utxos(long _claim_id, long _must_spend, long _must_pay_to, int _target_feerate_sat_per_1000_weight) {
+ byte[] _claim_id_conv = InternalUtils.decodeUint8Array(_claim_id);
+ int _must_spend_conv_7_len = InternalUtils.getArrayLength(_must_spend);
Input[] _must_spend_conv_7_arr = new Input[_must_spend_conv_7_len];
for (int h = 0; h < _must_spend_conv_7_len; h++) {
- long _must_spend_conv_7 = _must_spend[h];
+ long _must_spend_conv_7 = InternalUtils.getU64ArrayElem(_must_spend, h);
org.ldk.structs.Input _must_spend_conv_7_hu_conv = null; if (_must_spend_conv_7 < 0 || _must_spend_conv_7 > 4096) { _must_spend_conv_7_hu_conv = new org.ldk.structs.Input(null, _must_spend_conv_7); }
if (_must_spend_conv_7_hu_conv != null) { _must_spend_conv_7_hu_conv.ptrs_to.AddLast(this); };
_must_spend_conv_7_arr[h] = _must_spend_conv_7_hu_conv;
}
- int _must_pay_to_conv_7_len = _must_pay_to.Length;
+ bindings.free_buffer(_must_spend);
+ int _must_pay_to_conv_7_len = InternalUtils.getArrayLength(_must_pay_to);
TxOut[] _must_pay_to_conv_7_arr = new TxOut[_must_pay_to_conv_7_len];
for (int h = 0; h < _must_pay_to_conv_7_len; h++) {
- long _must_pay_to_conv_7 = _must_pay_to[h];
+ long _must_pay_to_conv_7 = InternalUtils.getU64ArrayElem(_must_pay_to, h);
TxOut _must_pay_to_conv_7_conv = new TxOut(null, _must_pay_to_conv_7);
_must_pay_to_conv_7_arr[h] = _must_pay_to_conv_7_conv;
}
- Result_CoinSelectionNoneZ ret = arg.select_confirmed_utxos(_claim_id, _must_spend_conv_7_arr, _must_pay_to_conv_7_arr, _target_feerate_sat_per_1000_weight);
+ bindings.free_buffer(_must_pay_to);
+ Result_CoinSelectionNoneZ ret = arg.select_confirmed_utxos(_claim_id_conv, _must_spend_conv_7_arr, _must_pay_to_conv_7_arr, _target_feerate_sat_per_1000_weight);
GC.KeepAlive(arg);
long result = ret == null ? 0 : ret.clone_ptr();
return result;
}
- public long sign_tx(byte[] _tx) {
- Result_TransactionNoneZ ret = arg.sign_tx(_tx);
+ public long sign_tx(long _tx) {
+ byte[] _tx_conv = InternalUtils.decodeUint8Array(_tx);
+ Result_TransactionNoneZ ret = arg.sign_tx(_tx_conv);
GC.KeepAlive(arg);
long result = ret == null ? 0 : ret.clone_ptr();
return result;
}
}
+
+ /** Creates a new instance of CoinSelectionSource from a given implementation */
public static CoinSelectionSource new_impl(CoinSelectionSourceInterface arg) {
LDKCoinSelectionSourceHolder impl_holder = new LDKCoinSelectionSourceHolder();
- impl_holder.held = new CoinSelectionSource(new LDKCoinSelectionSourceImpl(arg, impl_holder));
+ LDKCoinSelectionSourceImpl impl = new LDKCoinSelectionSourceImpl(arg, impl_holder);
+ long[] ptr_idx = bindings.LDKCoinSelectionSource_new(impl);
+
+ impl_holder.held = new CoinSelectionSource(null, ptr_idx[0]);
+ impl_holder.held.instance_idx = ptr_idx[1];
+ impl_holder.held.bindings_instance = impl;
return impl_holder.held;
}
+
/**
* Performs coin selection of a set of UTXOs, with at least 1 confirmation each, that are
* available to spend. Implementations are free to pick their coin selection algorithm of
* set of other claims being double spent to a minimum.
*/
public Result_CoinSelectionNoneZ select_confirmed_utxos(byte[] claim_id, Input[] must_spend, TxOut[] must_pay_to, int target_feerate_sat_per_1000_weight) {
- long ret = bindings.CoinSelectionSource_select_confirmed_utxos(this.ptr, InternalUtils.check_arr_len(claim_id, 32), must_spend != null ? InternalUtils.mapArray(must_spend, must_spend_conv_7 => must_spend_conv_7 == null ? 0 : must_spend_conv_7.ptr) : null, must_pay_to != null ? InternalUtils.mapArray(must_pay_to, must_pay_to_conv_7 => must_pay_to_conv_7.ptr) : null, target_feerate_sat_per_1000_weight);
+ long ret = bindings.CoinSelectionSource_select_confirmed_utxos(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(claim_id, 32)), InternalUtils.encodeUint64Array(InternalUtils.mapArray(must_spend, must_spend_conv_7 => must_spend_conv_7 == null ? 0 : must_spend_conv_7.ptr)), InternalUtils.encodeUint64Array(InternalUtils.mapArray(must_pay_to, must_pay_to_conv_7 => must_pay_to_conv_7.ptr)), target_feerate_sat_per_1000_weight);
GC.KeepAlive(this);
GC.KeepAlive(claim_id);
GC.KeepAlive(must_spend);
* trait (i.e., any provided via [`CoinSelectionSource::select_confirmed_utxos`]).
*/
public Result_TransactionNoneZ sign_tx(byte[] tx) {
- long ret = bindings.CoinSelectionSource_sign_tx(this.ptr, tx);
+ long ret = bindings.CoinSelectionSource_sign_tx(this.ptr, InternalUtils.encodeUint8Array(tx));
GC.KeepAlive(this);
GC.KeepAlive(tx);
if (ret >= 0 && ret <= 4096) { return null; }
projects / ldk-java / blobdiff