X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Forg%2Fldk%2Fstructs%2FUtxoLookup.java;fp=src%2Fmain%2Fjava%2Forg%2Fldk%2Fstructs%2FUtxoLookup.java;h=6087060d97cd03f887dbfeff647fbf84e2b7effa;hb=eab9331afd014558a982441138e222999a9955d1;hp=0000000000000000000000000000000000000000;hpb=397201c278ded558e45d406967f153770784ff88;p=ldk-java diff --git a/src/main/java/org/ldk/structs/UtxoLookup.java b/src/main/java/org/ldk/structs/UtxoLookup.java new file mode 100644 index 00000000..6087060d --- /dev/null +++ b/src/main/java/org/ldk/structs/UtxoLookup.java @@ -0,0 +1,81 @@ +package org.ldk.structs; + +import org.ldk.impl.bindings; +import org.ldk.enums.*; +import org.ldk.util.*; +import java.util.Arrays; +import java.lang.ref.Reference; +import javax.annotation.Nullable; + +/** + * The `UtxoLookup` trait defines behavior for accessing on-chain UTXOs. + */ +@SuppressWarnings("unchecked") // We correctly assign various generic arrays +public class UtxoLookup extends CommonBase { + final bindings.LDKUtxoLookup bindings_instance; + UtxoLookup(Object _dummy, long ptr) { super(ptr); bindings_instance = null; } + private UtxoLookup(bindings.LDKUtxoLookup arg) { + super(bindings.LDKUtxoLookup_new(arg)); + this.ptrs_to.add(arg); + this.bindings_instance = arg; + } + @Override @SuppressWarnings("deprecation") + protected void finalize() throws Throwable { + if (ptr != 0) { bindings.UtxoLookup_free(ptr); } super.finalize(); + } + /** + * Destroys the object, freeing associated resources. After this call, any access + * to this object may result in a SEGFAULT or worse. + * + * You should generally NEVER call this method. You should let the garbage collector + * do this for you when it finalizes objects. However, it may be useful for types + * which represent locks and should be closed immediately to avoid holding locks + * until the GC runs. + */ + public void destroy() { + if (ptr != 0) { bindings.UtxoLookup_free(ptr); } + ptr = 0; + } + public static interface UtxoLookupInterface { + /** + * Returns the transaction output of a funding transaction encoded by [`short_channel_id`]. + * Returns an error if `genesis_hash` is for a different chain or if such a transaction output + * is unknown. + * + * [`short_channel_id`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#definition-of-short_channel_id + */ + UtxoResult get_utxo(byte[] genesis_hash, long short_channel_id); + } + private static class LDKUtxoLookupHolder { UtxoLookup held; } + public static UtxoLookup new_impl(UtxoLookupInterface arg) { + final LDKUtxoLookupHolder impl_holder = new LDKUtxoLookupHolder(); + impl_holder.held = new UtxoLookup(new bindings.LDKUtxoLookup() { + @Override public long get_utxo(byte[] genesis_hash, long short_channel_id) { + UtxoResult ret = arg.get_utxo(genesis_hash, short_channel_id); + Reference.reachabilityFence(arg); + long result = ret == null ? 0 : ret.clone_ptr(); + if (impl_holder.held != null) { impl_holder.held.ptrs_to.add(ret); }; + return result; + } + }); + return impl_holder.held; + } + /** + * Returns the transaction output of a funding transaction encoded by [`short_channel_id`]. + * Returns an error if `genesis_hash` is for a different chain or if such a transaction output + * is unknown. + * + * [`short_channel_id`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#definition-of-short_channel_id + */ + public UtxoResult get_utxo(byte[] genesis_hash, long short_channel_id) { + long ret = bindings.UtxoLookup_get_utxo(this.ptr, InternalUtils.check_arr_len(genesis_hash, 32), short_channel_id); + Reference.reachabilityFence(this); + Reference.reachabilityFence(genesis_hash); + Reference.reachabilityFence(short_channel_id); + if (ret >= 0 && ret <= 4096) { return null; } + org.ldk.structs.UtxoResult ret_hu_conv = org.ldk.structs.UtxoResult.constr_from_ptr(ret); + if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); }; + return ret_hu_conv; + } + +}