--- /dev/null
+using org.ldk.impl;
+using org.ldk.enums;
+using org.ldk.util;
+using System;
+
+namespace org { namespace ldk { namespace structs {
+
+/**
+ * The `Watch` trait defines behavior for watching on-chain activity pertaining to channels as
+ * blocks are connected and disconnected.
+ *
+ * Each channel is associated with a [`ChannelMonitor`]. Implementations of this trait are
+ * responsible for maintaining a set of monitors such that they can be updated accordingly as
+ * channel state changes and HTLCs are resolved. See method documentation for specific
+ * requirements.
+ *
+ * Implementations **must** ensure that updates are successfully applied and persisted upon method
+ * completion. If an update fails with a [`PermanentFailure`], then it must immediately shut down
+ * without taking any further action such as persisting the current state.
+ *
+ * If an implementation maintains multiple instances of a channel's monitor (e.g., by storing
+ * backup copies), then it must ensure that updates are applied across all instances. Otherwise, it
+ * could result in a revoked transaction being broadcast, allowing the counterparty to claim all
+ * funds in the channel. See [`ChannelMonitorUpdateStatus`] for more details about how to handle
+ * multiple instances.
+ *
+ * [`PermanentFailure`]: ChannelMonitorUpdateStatus::PermanentFailure
+ */
+public class Watch : CommonBase {
+ internal readonly bindings.LDKWatch bindings_instance;
+ internal Watch(object _dummy, long ptr) : base(ptr) { bindings_instance = null; }
+ private Watch(bindings.LDKWatch arg) : base(bindings.LDKWatch_new(arg)) {
+ this.ptrs_to.AddLast(arg);
+ this.bindings_instance = arg;
+ }
+ ~Watch() {
+ if (ptr != 0) { bindings.Watch_free(ptr); }
+ }
+
+ public interface WatchInterface {
+ /**
+ * Watches a channel identified by `funding_txo` using `monitor`.
+ *
+ * Implementations are responsible for watching the chain for the funding transaction along
+ * with any spends of outputs returned by [`get_outputs_to_watch`]. In practice, this means
+ * calling [`block_connected`] and [`block_disconnected`] on the monitor.
+ *
+ * Note: this interface MUST error with [`ChannelMonitorUpdateStatus::PermanentFailure`] if
+ * the given `funding_txo` has previously been registered via `watch_channel`.
+ *
+ * [`get_outputs_to_watch`]: channelmonitor::ChannelMonitor::get_outputs_to_watch
+ * [`block_connected`]: channelmonitor::ChannelMonitor::block_connected
+ * [`block_disconnected`]: channelmonitor::ChannelMonitor::block_disconnected
+ */
+ ChannelMonitorUpdateStatus watch_channel(OutPoint _funding_txo, ChannelMonitor _monitor);
+ /**
+ * Updates a channel identified by `funding_txo` by applying `update` to its monitor.
+ *
+ * Implementations must call [`update_monitor`] with the given update. See
+ * [`ChannelMonitorUpdateStatus`] for invariants around returning an error.
+ *
+ * [`update_monitor`]: channelmonitor::ChannelMonitor::update_monitor
+ */
+ ChannelMonitorUpdateStatus update_channel(OutPoint _funding_txo, ChannelMonitorUpdate _update);
+ /**
+ * Returns any monitor events since the last call. Subsequent calls must only return new
+ * events.
+ *
+ * Note that after any block- or transaction-connection calls to a [`ChannelMonitor`], no
+ * further events may be returned here until the [`ChannelMonitor`] has been fully persisted
+ * to disk.
+ *
+ * For details on asynchronous [`ChannelMonitor`] updating and returning
+ * [`MonitorEvent::Completed`] here, see [`ChannelMonitorUpdateStatus::InProgress`].
+ */
+ ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[] release_pending_monitor_events();
+ }
+ private class LDKWatchHolder { internal Watch held; }
+ private class LDKWatchImpl : bindings.LDKWatch {
+ internal LDKWatchImpl(WatchInterface arg, LDKWatchHolder impl_holder) { this.arg = arg; this.impl_holder = impl_holder; }
+ private WatchInterface arg;
+ private LDKWatchHolder impl_holder;
+ public ChannelMonitorUpdateStatus watch_channel(long _funding_txo, long _monitor) {
+ org.ldk.structs.OutPoint _funding_txo_hu_conv = null; if (_funding_txo < 0 || _funding_txo > 4096) { _funding_txo_hu_conv = new org.ldk.structs.OutPoint(null, _funding_txo); }
+ if (_funding_txo_hu_conv != null) { _funding_txo_hu_conv.ptrs_to.AddLast(this); };
+ org.ldk.structs.ChannelMonitor _monitor_hu_conv = null; if (_monitor < 0 || _monitor > 4096) { _monitor_hu_conv = new org.ldk.structs.ChannelMonitor(null, _monitor); }
+ if (_monitor_hu_conv != null) { _monitor_hu_conv.ptrs_to.AddLast(this); };
+ ChannelMonitorUpdateStatus ret = arg.watch_channel(_funding_txo_hu_conv, _monitor_hu_conv);
+ GC.KeepAlive(arg);
+ return ret;
+ }
+ public ChannelMonitorUpdateStatus update_channel(long _funding_txo, long _update) {
+ org.ldk.structs.OutPoint _funding_txo_hu_conv = null; if (_funding_txo < 0 || _funding_txo > 4096) { _funding_txo_hu_conv = new org.ldk.structs.OutPoint(null, _funding_txo); }
+ if (_funding_txo_hu_conv != null) { _funding_txo_hu_conv.ptrs_to.AddLast(this); };
+ org.ldk.structs.ChannelMonitorUpdate _update_hu_conv = null; if (_update < 0 || _update > 4096) { _update_hu_conv = new org.ldk.structs.ChannelMonitorUpdate(null, _update); }
+ if (_update_hu_conv != null) { _update_hu_conv.ptrs_to.AddLast(this); };
+ ChannelMonitorUpdateStatus ret = arg.update_channel(_funding_txo_hu_conv, _update_hu_conv);
+ GC.KeepAlive(arg);
+ return ret;
+ }
+ public long[] release_pending_monitor_events() {
+ ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[] ret = arg.release_pending_monitor_events();
+ GC.KeepAlive(arg);
+ long[] result = ret != null ? InternalUtils.mapArray(ret, ret_conv_49 => ret_conv_49 == null ? 0 : ret_conv_49.clone_ptr()) : null;
+ return result;
+ }
+ }
+ public static Watch new_impl(WatchInterface arg) {
+ LDKWatchHolder impl_holder = new LDKWatchHolder();
+ impl_holder.held = new Watch(new LDKWatchImpl(arg, impl_holder));
+ return impl_holder.held;
+ }
+ /**
+ * Watches a channel identified by `funding_txo` using `monitor`.
+ *
+ * Implementations are responsible for watching the chain for the funding transaction along
+ * with any spends of outputs returned by [`get_outputs_to_watch`]. In practice, this means
+ * calling [`block_connected`] and [`block_disconnected`] on the monitor.
+ *
+ * Note: this interface MUST error with [`ChannelMonitorUpdateStatus::PermanentFailure`] if
+ * the given `funding_txo` has previously been registered via `watch_channel`.
+ *
+ * [`get_outputs_to_watch`]: channelmonitor::ChannelMonitor::get_outputs_to_watch
+ * [`block_connected`]: channelmonitor::ChannelMonitor::block_connected
+ * [`block_disconnected`]: channelmonitor::ChannelMonitor::block_disconnected
+ */
+ public ChannelMonitorUpdateStatus watch_channel(org.ldk.structs.OutPoint funding_txo, org.ldk.structs.ChannelMonitor monitor) {
+ ChannelMonitorUpdateStatus ret = bindings.Watch_watch_channel(this.ptr, funding_txo == null ? 0 : funding_txo.ptr, monitor == null ? 0 : monitor.ptr);
+ GC.KeepAlive(this);
+ GC.KeepAlive(funding_txo);
+ GC.KeepAlive(monitor);
+ if (this != null) { this.ptrs_to.AddLast(funding_txo); };
+ if (this != null) { this.ptrs_to.AddLast(monitor); };
+ return ret;
+ }
+
+ /**
+ * Updates a channel identified by `funding_txo` by applying `update` to its monitor.
+ *
+ * Implementations must call [`update_monitor`] with the given update. See
+ * [`ChannelMonitorUpdateStatus`] for invariants around returning an error.
+ *
+ * [`update_monitor`]: channelmonitor::ChannelMonitor::update_monitor
+ */
+ public ChannelMonitorUpdateStatus update_channel(org.ldk.structs.OutPoint funding_txo, org.ldk.structs.ChannelMonitorUpdate update) {
+ ChannelMonitorUpdateStatus ret = bindings.Watch_update_channel(this.ptr, funding_txo == null ? 0 : funding_txo.ptr, update == null ? 0 : update.ptr);
+ GC.KeepAlive(this);
+ GC.KeepAlive(funding_txo);
+ GC.KeepAlive(update);
+ if (this != null) { this.ptrs_to.AddLast(funding_txo); };
+ if (this != null) { this.ptrs_to.AddLast(update); };
+ return ret;
+ }
+
+ /**
+ * Returns any monitor events since the last call. Subsequent calls must only return new
+ * events.
+ *
+ * Note that after any block- or transaction-connection calls to a [`ChannelMonitor`], no
+ * further events may be returned here until the [`ChannelMonitor`] has been fully persisted
+ * to disk.
+ *
+ * For details on asynchronous [`ChannelMonitor`] updating and returning
+ * [`MonitorEvent::Completed`] here, see [`ChannelMonitorUpdateStatus::InProgress`].
+ */
+ public ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[] release_pending_monitor_events() {
+ long[] ret = bindings.Watch_release_pending_monitor_events(this.ptr);
+ GC.KeepAlive(this);
+ int ret_conv_49_len = ret.Length;
+ ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[] ret_conv_49_arr = new ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[ret_conv_49_len];
+ for (int x = 0; x < ret_conv_49_len; x++) {
+ long ret_conv_49 = ret[x];
+ ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ ret_conv_49_hu_conv = new ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ(null, ret_conv_49);
+ if (ret_conv_49_hu_conv != null) { ret_conv_49_hu_conv.ptrs_to.AddLast(this); };
+ ret_conv_49_arr[x] = ret_conv_49_hu_conv;
+ }
+ return ret_conv_49_arr;
+ }
+
+}
+} } }
projects / ldk-java / blobdiff