--- /dev/null
+using org.ldk.impl;
+using org.ldk.enums;
+using org.ldk.util;
+using System;
+
+namespace org { namespace ldk { namespace structs {
+
+/**
+ * A trait that can return signer instances for individual channels.
+ */
+public class SignerProvider : CommonBase {
+ internal readonly bindings.LDKSignerProvider bindings_instance;
+ internal SignerProvider(object _dummy, long ptr) : base(ptr) { bindings_instance = null; }
+ private SignerProvider(bindings.LDKSignerProvider arg) : base(bindings.LDKSignerProvider_new(arg)) {
+ this.ptrs_to.AddLast(arg);
+ this.bindings_instance = arg;
+ }
+ ~SignerProvider() {
+ if (ptr != 0) { bindings.SignerProvider_free(ptr); }
+ }
+
+ public interface SignerProviderInterface {
+ /**
+ * Generates a unique `channel_keys_id` that can be used to obtain a [`Self::Signer`] through
+ * [`SignerProvider::derive_channel_signer`]. The `user_channel_id` is provided to allow
+ * implementations of [`SignerProvider`] to maintain a mapping between itself and the generated
+ * `channel_keys_id`.
+ *
+ * This method must return a different value each time it is called.
+ */
+ byte[] generate_channel_keys_id(bool _inbound, long _channel_value_satoshis, UInt128 _user_channel_id);
+ /**
+ * Derives the private key material backing a `Signer`.
+ *
+ * To derive a new `Signer`, a fresh `channel_keys_id` should be obtained through
+ * [`SignerProvider::generate_channel_keys_id`]. Otherwise, an existing `Signer` can be
+ * re-derived from its `channel_keys_id`, which can be obtained through its trait method
+ * [`ChannelSigner::channel_keys_id`].
+ */
+ WriteableEcdsaChannelSigner derive_channel_signer(long _channel_value_satoshis, byte[] _channel_keys_id);
+ /**
+ * Reads a [`Signer`] for this [`SignerProvider`] from the given input stream.
+ * This is only called during deserialization of other objects which contain
+ * [`WriteableEcdsaChannelSigner`]-implementing objects (i.e., [`ChannelMonitor`]s and [`ChannelManager`]s).
+ * The bytes are exactly those which `<Self::Signer as Writeable>::write()` writes, and
+ * contain no versioning scheme. You may wish to include your own version prefix and ensure
+ * you've read all of the provided bytes to ensure no corruption occurred.
+ *
+ * This method is slowly being phased out -- it will only be called when reading objects
+ * written by LDK versions prior to 0.0.113.
+ *
+ * [`Signer`]: Self::Signer
+ * [`ChannelMonitor`]: crate::chain::channelmonitor::ChannelMonitor
+ * [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
+ */
+ Result_WriteableEcdsaChannelSignerDecodeErrorZ read_chan_signer(byte[] _reader);
+ /**
+ * Get a script pubkey which we send funds to when claiming on-chain contestable outputs.
+ *
+ * If this function returns an error, this will result in a channel failing to open.
+ *
+ * This method should return a different value each time it is called, to avoid linking
+ * on-chain funds across channels as controlled to the same user.
+ */
+ Result_ScriptNoneZ get_destination_script();
+ /**
+ * Get a script pubkey which we will send funds to when closing a channel.
+ *
+ * If this function returns an error, this will result in a channel failing to open or close.
+ * In the event of a failure when the counterparty is initiating a close, this can result in a
+ * channel force close.
+ *
+ * This method should return a different value each time it is called, to avoid linking
+ * on-chain funds across channels as controlled to the same user.
+ */
+ Result_ShutdownScriptNoneZ get_shutdown_scriptpubkey();
+ }
+ private class LDKSignerProviderHolder { internal SignerProvider held; }
+ private class LDKSignerProviderImpl : bindings.LDKSignerProvider {
+ internal LDKSignerProviderImpl(SignerProviderInterface arg, LDKSignerProviderHolder impl_holder) { this.arg = arg; this.impl_holder = impl_holder; }
+ private SignerProviderInterface arg;
+ private LDKSignerProviderHolder impl_holder;
+ public byte[] generate_channel_keys_id(bool _inbound, long _channel_value_satoshis, byte[] _user_channel_id) {
+ org.ldk.util.UInt128 _user_channel_id_conv = new org.ldk.util.UInt128(_user_channel_id);
+ byte[] ret = arg.generate_channel_keys_id(_inbound, _channel_value_satoshis, _user_channel_id_conv);
+ GC.KeepAlive(arg);
+ byte[] result = InternalUtils.check_arr_len(ret, 32);
+ return result;
+ }
+ public long derive_channel_signer(long _channel_value_satoshis, byte[] _channel_keys_id) {
+ WriteableEcdsaChannelSigner ret = arg.derive_channel_signer(_channel_value_satoshis, _channel_keys_id);
+ GC.KeepAlive(arg);
+ long result = ret.clone_ptr();
+ if (impl_holder.held != null) { impl_holder.held.ptrs_to.AddLast(ret); };
+ return result;
+ }
+ public long read_chan_signer(byte[] _reader) {
+ Result_WriteableEcdsaChannelSignerDecodeErrorZ ret = arg.read_chan_signer(_reader);
+ GC.KeepAlive(arg);
+ long result = ret == null ? 0 : ret.clone_ptr();
+ return result;
+ }
+ public long get_destination_script() {
+ Result_ScriptNoneZ ret = arg.get_destination_script();
+ GC.KeepAlive(arg);
+ long result = ret == null ? 0 : ret.clone_ptr();
+ return result;
+ }
+ public long get_shutdown_scriptpubkey() {
+ Result_ShutdownScriptNoneZ ret = arg.get_shutdown_scriptpubkey();
+ GC.KeepAlive(arg);
+ long result = ret == null ? 0 : ret.clone_ptr();
+ return result;
+ }
+ }
+ public static SignerProvider new_impl(SignerProviderInterface arg) {
+ LDKSignerProviderHolder impl_holder = new LDKSignerProviderHolder();
+ impl_holder.held = new SignerProvider(new LDKSignerProviderImpl(arg, impl_holder));
+ return impl_holder.held;
+ }
+ /**
+ * Generates a unique `channel_keys_id` that can be used to obtain a [`Self::Signer`] through
+ * [`SignerProvider::derive_channel_signer`]. The `user_channel_id` is provided to allow
+ * implementations of [`SignerProvider`] to maintain a mapping between itself and the generated
+ * `channel_keys_id`.
+ *
+ * This method must return a different value each time it is called.
+ */
+ public byte[] generate_channel_keys_id(bool inbound, long channel_value_satoshis, org.ldk.util.UInt128 user_channel_id) {
+ byte[] ret = bindings.SignerProvider_generate_channel_keys_id(this.ptr, inbound, channel_value_satoshis, user_channel_id.getLEBytes());
+ GC.KeepAlive(this);
+ GC.KeepAlive(inbound);
+ GC.KeepAlive(channel_value_satoshis);
+ GC.KeepAlive(user_channel_id);
+ return ret;
+ }
+
+ /**
+ * Derives the private key material backing a `Signer`.
+ *
+ * To derive a new `Signer`, a fresh `channel_keys_id` should be obtained through
+ * [`SignerProvider::generate_channel_keys_id`]. Otherwise, an existing `Signer` can be
+ * re-derived from its `channel_keys_id`, which can be obtained through its trait method
+ * [`ChannelSigner::channel_keys_id`].
+ */
+ public WriteableEcdsaChannelSigner derive_channel_signer(long channel_value_satoshis, byte[] channel_keys_id) {
+ long ret = bindings.SignerProvider_derive_channel_signer(this.ptr, channel_value_satoshis, InternalUtils.check_arr_len(channel_keys_id, 32));
+ GC.KeepAlive(this);
+ GC.KeepAlive(channel_value_satoshis);
+ GC.KeepAlive(channel_keys_id);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ WriteableEcdsaChannelSigner ret_hu_conv = new WriteableEcdsaChannelSigner(null, ret);
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(this); };
+ return ret_hu_conv;
+ }
+
+ /**
+ * Reads a [`Signer`] for this [`SignerProvider`] from the given input stream.
+ * This is only called during deserialization of other objects which contain
+ * [`WriteableEcdsaChannelSigner`]-implementing objects (i.e., [`ChannelMonitor`]s and [`ChannelManager`]s).
+ * The bytes are exactly those which `<Self::Signer as Writeable>::write()` writes, and
+ * contain no versioning scheme. You may wish to include your own version prefix and ensure
+ * you've read all of the provided bytes to ensure no corruption occurred.
+ *
+ * This method is slowly being phased out -- it will only be called when reading objects
+ * written by LDK versions prior to 0.0.113.
+ *
+ * [`Signer`]: Self::Signer
+ * [`ChannelMonitor`]: crate::chain::channelmonitor::ChannelMonitor
+ * [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
+ */
+ public Result_WriteableEcdsaChannelSignerDecodeErrorZ read_chan_signer(byte[] reader) {
+ long ret = bindings.SignerProvider_read_chan_signer(this.ptr, reader);
+ GC.KeepAlive(this);
+ GC.KeepAlive(reader);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ Result_WriteableEcdsaChannelSignerDecodeErrorZ ret_hu_conv = Result_WriteableEcdsaChannelSignerDecodeErrorZ.constr_from_ptr(ret);
+ return ret_hu_conv;
+ }
+
+ /**
+ * Get a script pubkey which we send funds to when claiming on-chain contestable outputs.
+ *
+ * If this function returns an error, this will result in a channel failing to open.
+ *
+ * This method should return a different value each time it is called, to avoid linking
+ * on-chain funds across channels as controlled to the same user.
+ */
+ public Result_ScriptNoneZ get_destination_script() {
+ long ret = bindings.SignerProvider_get_destination_script(this.ptr);
+ GC.KeepAlive(this);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ Result_ScriptNoneZ ret_hu_conv = Result_ScriptNoneZ.constr_from_ptr(ret);
+ return ret_hu_conv;
+ }
+
+ /**
+ * Get a script pubkey which we will send funds to when closing a channel.
+ *
+ * If this function returns an error, this will result in a channel failing to open or close.
+ * In the event of a failure when the counterparty is initiating a close, this can result in a
+ * channel force close.
+ *
+ * This method should return a different value each time it is called, to avoid linking
+ * on-chain funds across channels as controlled to the same user.
+ */
+ public Result_ShutdownScriptNoneZ get_shutdown_scriptpubkey() {
+ long ret = bindings.SignerProvider_get_shutdown_scriptpubkey(this.ptr);
+ GC.KeepAlive(this);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ Result_ShutdownScriptNoneZ ret_hu_conv = Result_ShutdownScriptNoneZ.constr_from_ptr(ret);
+ return ret_hu_conv;
+ }
+
+}
+} } }
projects / ldk-java / blobdiff