* Manager which keeps track of a number of channels and sends messages to the appropriate
* channel, also tracking HTLC preimages and forwarding onion packets appropriately.
*
- * Implements ChannelMessageHandler, handling the multi-channel parts and passing things through
+ * Implements [`ChannelMessageHandler`], handling the multi-channel parts and passing things through
* to individual Channels.
*
- * Implements Writeable to write out all channel state to disk. Implies peer_disconnected() for
+ * Implements [`Writeable`] to write out all channel state to disk. Implies [`peer_disconnected`] for
* all peers during write/read (though does not modify this instance, only the instance being
- * serialized). This will result in any channels which have not yet exchanged funding_created (ie
- * called funding_transaction_generated for outbound channels).
+ * serialized). This will result in any channels which have not yet exchanged [`funding_created`] (i.e.,
+ * called [`funding_transaction_generated`] for outbound channels) being closed.
*
- * Note that you can be a bit lazier about writing out ChannelManager than you can be with
- * ChannelMonitors. With ChannelMonitors you MUST write each monitor update out to disk before
- * returning from chain::Watch::watch_/update_channel, with ChannelManagers, writing updates
- * happens out-of-band (and will prevent any other ChannelManager operations from occurring during
+ * Note that you can be a bit lazier about writing out `ChannelManager` than you can be with
+ * [`ChannelMonitor`]. With [`ChannelMonitor`] you MUST write each monitor update out to disk before
+ * returning from [`chain::Watch::watch_channel`]/[`update_channel`], with ChannelManagers, writing updates
+ * happens out-of-band (and will prevent any other `ChannelManager` operations from occurring during
* the serialization process). If the deserialized version is out-of-date compared to the
- * ChannelMonitors passed by reference to read(), those channels will be force-closed based on the
- * ChannelMonitor state and no funds will be lost (mod on-chain transaction fees).
+ * [`ChannelMonitor`] passed by reference to [`read`], those channels will be force-closed based on the
+ * `ChannelMonitor` state and no funds will be lost (mod on-chain transaction fees).
*
- * Note that the deserializer is only implemented for (BlockHash, ChannelManager), which
- * tells you the last block hash which was block_connect()ed. You MUST rescan any blocks along
- * the \"reorg path\" (ie call block_disconnected() until you get to a common block and then call
- * block_connected() to step towards your best block) upon deserialization before using the
- * object!
+ * Note that the deserializer is only implemented for `(`[`BlockHash`]`, `[`ChannelManager`]`)`, which
+ * tells you the last block hash which was connected. You should get the best block tip before using the manager.
+ * See [`chain::Listen`] and [`chain::Confirm`] for more details.
*
- * Note that ChannelManager is responsible for tracking liveness of its channels and generating
- * ChannelUpdate messages informing peers that the channel is temporarily disabled. To avoid
+ * Note that `ChannelManager` is responsible for tracking liveness of its channels and generating
+ * [`ChannelUpdate`] messages informing peers that the channel is temporarily disabled. To avoid
* spam due to quick disconnection/reconnection, updates are not sent until the channel has been
* offline for a full minute. In order to track this, you must call
- * timer_tick_occurred roughly once per minute, though it doesn't have to be perfect.
+ * [`timer_tick_occurred`] roughly once per minute, though it doesn't have to be perfect.
*
- * Rather than using a plain ChannelManager, it is preferable to use either a SimpleArcChannelManager
- * a SimpleRefChannelManager, for conciseness. See their documentation for more details, but
- * essentially you should default to using a SimpleRefChannelManager, and use a
- * SimpleArcChannelManager when you require a ChannelManager with a static lifetime, such as when
+ * To avoid trivial DoS issues, `ChannelManager` limits the number of inbound connections and
+ * inbound channels without confirmed funding transactions. This may result in nodes which we do
+ * not have a channel with being unable to connect to us or open new channels with us if we have
+ * many peers with unfunded channels.
+ *
+ * Because it is an indication of trust, inbound channels which we've accepted as 0conf are
+ * exempted from the count of unfunded channels. Similarly, outbound channels and connections are
+ * never limited. Please ensure you limit the count of such channels yourself.
+ *
+ * Rather than using a plain `ChannelManager`, it is preferable to use either a [`SimpleArcChannelManager`]
+ * a [`SimpleRefChannelManager`], for conciseness. See their documentation for more details, but
+ * essentially you should default to using a [`SimpleRefChannelManager`], and use a
+ * [`SimpleArcChannelManager`] when you require a `ChannelManager` with a static lifetime, such as when
* you're using lightning-net-tokio.
+ *
+ * [`peer_disconnected`]: msgs::ChannelMessageHandler::peer_disconnected
+ * [`funding_created`]: msgs::FundingCreated
+ * [`funding_transaction_generated`]: Self::funding_transaction_generated
+ * [`BlockHash`]: bitcoin::hash_types::BlockHash
+ * [`update_channel`]: chain::Watch::update_channel
+ * [`ChannelUpdate`]: msgs::ChannelUpdate
+ * [`timer_tick_occurred`]: Self::timer_tick_occurred
+ * [`read`]: ReadableArgs::read
*/
@SuppressWarnings("unchecked") // We correctly assign various generic arrays
public class ChannelManager extends CommonBase {
}
/**
- * Constructs a new ChannelManager to hold several channels and route between them.
+ * Constructs a new `ChannelManager` to hold several channels and route between them.
*
* This is the main \"logic hub\" for all channel-related actions, and implements
- * ChannelMessageHandler.
+ * [`ChannelMessageHandler`].
*
* Non-proportional fees are fixed according to our risk using the provided fee estimator.
*
- * Users need to notify the new ChannelManager when a new block is connected or
- * disconnected using its `block_connected` and `block_disconnected` methods, starting
- * from after `params.latest_hash`.
+ * Users need to notify the new `ChannelManager` when a new block is connected or
+ * disconnected using its [`block_connected`] and [`block_disconnected`] methods, starting
+ * from after [`params.best_block.block_hash`]. See [`chain::Listen`] and [`chain::Confirm`] for
+ * more details.
+ *
+ * [`block_connected`]: chain::Listen::block_connected
+ * [`block_disconnected`]: chain::Listen::block_disconnected
+ * [`params.best_block.block_hash`]: chain::BestBlock::block_hash
*/
- public static ChannelManager of(org.ldk.structs.FeeEstimator fee_est, org.ldk.structs.Watch chain_monitor, org.ldk.structs.BroadcasterInterface tx_broadcaster, org.ldk.structs.Logger logger, org.ldk.structs.KeysInterface keys_manager, org.ldk.structs.UserConfig config, org.ldk.structs.ChainParameters params) {
- long ret = bindings.ChannelManager_new(fee_est == null ? 0 : fee_est.ptr, chain_monitor == null ? 0 : chain_monitor.ptr, tx_broadcaster == null ? 0 : tx_broadcaster.ptr, logger == null ? 0 : logger.ptr, keys_manager == null ? 0 : keys_manager.ptr, config == null ? 0 : config.ptr, params == null ? 0 : params.ptr);
+ public static ChannelManager of(org.ldk.structs.FeeEstimator fee_est, org.ldk.structs.Watch chain_monitor, org.ldk.structs.BroadcasterInterface tx_broadcaster, org.ldk.structs.Router router, org.ldk.structs.Logger logger, org.ldk.structs.EntropySource entropy_source, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.SignerProvider signer_provider, org.ldk.structs.UserConfig config, org.ldk.structs.ChainParameters params) {
+ long ret = bindings.ChannelManager_new(fee_est == null ? 0 : fee_est.ptr, chain_monitor == null ? 0 : chain_monitor.ptr, tx_broadcaster == null ? 0 : tx_broadcaster.ptr, router == null ? 0 : router.ptr, logger == null ? 0 : logger.ptr, entropy_source == null ? 0 : entropy_source.ptr, node_signer == null ? 0 : node_signer.ptr, signer_provider == null ? 0 : signer_provider.ptr, config == null ? 0 : config.ptr, params == null ? 0 : params.ptr);
Reference.reachabilityFence(fee_est);
Reference.reachabilityFence(chain_monitor);
Reference.reachabilityFence(tx_broadcaster);
+ Reference.reachabilityFence(router);
Reference.reachabilityFence(logger);
- Reference.reachabilityFence(keys_manager);
+ Reference.reachabilityFence(entropy_source);
+ Reference.reachabilityFence(node_signer);
+ Reference.reachabilityFence(signer_provider);
Reference.reachabilityFence(config);
Reference.reachabilityFence(params);
if (ret >= 0 && ret <= 4096) { return null; }
if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(fee_est); };
if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(chain_monitor); };
if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(tx_broadcaster); };
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(router); };
if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(logger); };
- if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(keys_manager); };
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(entropy_source); };
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(node_signer); };
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(signer_provider); };
if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(config); };
if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(params); };
return ret_hu_conv;
}
/**
- * Gets the list of open channels, in random order. See ChannelDetail field documentation for
+ * Gets the list of open channels, in random order. See [`ChannelDetails`] field documentation for
* more information.
*/
public ChannelDetails[] list_channels() {
}
/**
- * Gets the list of usable channels, in random order. Useful as an argument to [`find_route`]
- * to ensure non-announced channels are used.
+ * Gets the list of usable channels, in random order. Useful as an argument to
+ * [`Router::find_route`] to ensure non-announced channels are used.
*
* These are guaranteed to have their [`ChannelDetails::is_usable`] value set to true, see the
* documentation for [`ChannelDetails::is_usable`] for more info on exactly what the criteria
* are.
- *
- * [`find_route`]: crate::routing::router::find_route
*/
public ChannelDetails[] list_usable_channels() {
long[] ret = bindings.ChannelManager_list_usable_channels(this.ptr);
return ret_conv_16_arr;
}
+ /**
+ * Gets the list of channels we have with a given counterparty, in random order.
+ */
+ public ChannelDetails[] list_channels_with_counterparty(byte[] counterparty_node_id) {
+ long[] ret = bindings.ChannelManager_list_channels_with_counterparty(this.ptr, InternalUtils.check_arr_len(counterparty_node_id, 33));
+ Reference.reachabilityFence(this);
+ Reference.reachabilityFence(counterparty_node_id);
+ int ret_conv_16_len = ret.length;
+ ChannelDetails[] ret_conv_16_arr = new ChannelDetails[ret_conv_16_len];
+ for (int q = 0; q < ret_conv_16_len; q++) {
+ long ret_conv_16 = ret[q];
+ org.ldk.structs.ChannelDetails ret_conv_16_hu_conv = null; if (ret_conv_16 < 0 || ret_conv_16 > 4096) { ret_conv_16_hu_conv = new org.ldk.structs.ChannelDetails(null, ret_conv_16); }
+ if (ret_conv_16_hu_conv != null) { ret_conv_16_hu_conv.ptrs_to.add(this); };
+ ret_conv_16_arr[q] = ret_conv_16_hu_conv;
+ }
+ return ret_conv_16_arr;
+ }
+
+ /**
+ * Returns in an undefined order recent payments that -- if not fulfilled -- have yet to find a
+ * successful path, or have unresolved HTLCs.
+ *
+ * This can be useful for payments that may have been prepared, but ultimately not sent, as a
+ * result of a crash. If such a payment exists, is not listed here, and an
+ * [`Event::PaymentSent`] has not been received, you may consider resending the payment.
+ *
+ * [`Event::PaymentSent`]: events::Event::PaymentSent
+ */
+ public RecentPaymentDetails[] list_recent_payments() {
+ long[] ret = bindings.ChannelManager_list_recent_payments(this.ptr);
+ Reference.reachabilityFence(this);
+ int ret_conv_22_len = ret.length;
+ RecentPaymentDetails[] ret_conv_22_arr = new RecentPaymentDetails[ret_conv_22_len];
+ for (int w = 0; w < ret_conv_22_len; w++) {
+ long ret_conv_22 = ret[w];
+ org.ldk.structs.RecentPaymentDetails ret_conv_22_hu_conv = org.ldk.structs.RecentPaymentDetails.constr_from_ptr(ret_conv_22);
+ if (ret_conv_22_hu_conv != null) { ret_conv_22_hu_conv.ptrs_to.add(this); };
+ ret_conv_22_arr[w] = ret_conv_22_hu_conv;
+ }
+ return ret_conv_22_arr;
+ }
+
/**
* Begins the process of closing a channel. After this call (plus some timeout), no new HTLCs
* will be accepted on the given channel, and after additional timeout/the closing of all
* would appear on a force-closure transaction, whichever is lower. We will allow our
* counterparty to pay as much fee as they'd like, however.
*
- * May generate a SendShutdown message event on success, which should be relayed.
+ * May generate a [`SendShutdown`] message event on success, which should be relayed.
*
* [`ChannelConfig::force_close_avoidance_max_fee_satoshis`]: crate::util::config::ChannelConfig::force_close_avoidance_max_fee_satoshis
* [`Background`]: crate::chain::chaininterface::ConfirmationTarget::Background
* [`Normal`]: crate::chain::chaininterface::ConfirmationTarget::Normal
+ * [`SendShutdown`]: crate::events::MessageSendEvent::SendShutdown
*/
public Result_NoneAPIErrorZ close_channel(byte[] channel_id, byte[] counterparty_node_id) {
long ret = bindings.ChannelManager_close_channel(this.ptr, InternalUtils.check_arr_len(channel_id, 32), InternalUtils.check_arr_len(counterparty_node_id, 33));
* transaction feerate below `target_feerate_sat_per_1000_weight` (or the feerate which
* will appear on a force-closure transaction, whichever is lower).
*
- * May generate a SendShutdown message event on success, which should be relayed.
+ * May generate a [`SendShutdown`] message event on success, which should be relayed.
*
* [`ChannelConfig::force_close_avoidance_max_fee_satoshis`]: crate::util::config::ChannelConfig::force_close_avoidance_max_fee_satoshis
* [`Background`]: crate::chain::chaininterface::ConfirmationTarget::Background
* [`Normal`]: crate::chain::chaininterface::ConfirmationTarget::Normal
+ * [`SendShutdown`]: crate::events::MessageSendEvent::SendShutdown
*/
public Result_NoneAPIErrorZ close_channel_with_target_feerate(byte[] channel_id, byte[] counterparty_node_id, int target_feerate_sats_per_1000_weight) {
long ret = bindings.ChannelManager_close_channel_with_target_feerate(this.ptr, InternalUtils.check_arr_len(channel_id, 32), InternalUtils.check_arr_len(counterparty_node_id, 33), target_feerate_sats_per_1000_weight);
/**
* Sends a payment along a given route.
*
- * Value parameters are provided via the last hop in route, see documentation for RouteHop
+ * Value parameters are provided via the last hop in route, see documentation for [`RouteHop`]
* fields for more info.
*
+ * May generate [`UpdateHTLCs`] message(s) event on success, which should be relayed (e.g. via
+ * [`PeerManager::process_events`]).
+ *
+ * # Avoiding Duplicate Payments
+ *
* If a pending payment is currently in-flight with the same [`PaymentId`] provided, this
* method will error with an [`APIError::InvalidRoute`]. Note, however, that once a payment
* is no longer pending (either via [`ChannelManager::abandon_payment`], or handling of an
- * [`Event::PaymentSent`]) LDK will not stop you from sending a second payment with the same
- * [`PaymentId`].
+ * [`Event::PaymentSent`] or [`Event::PaymentFailed`]) LDK will not stop you from sending a
+ * second payment with the same [`PaymentId`].
*
* Thus, in order to ensure duplicate payments are not sent, you should implement your own
* tracking of payments, including state to indicate once a payment has completed. Because you
* consider using the [`PaymentHash`] as the key for tracking payments. In that case, the
* [`PaymentId`] should be a copy of the [`PaymentHash`] bytes.
*
- * May generate SendHTLCs message(s) event on success, which should be relayed (e.g. via
- * [`PeerManager::process_events`]).
+ * Additionally, in the scenario where we begin the process of sending a payment, but crash
+ * before `send_payment` returns (or prior to [`ChannelMonitorUpdate`] persistence if you're
+ * using [`ChannelMonitorUpdateStatus::InProgress`]), the payment may be lost on restart. See
+ * [`ChannelManager::list_recent_payments`] for more information.
+ *
+ * # Possible Error States on [`PaymentSendFailure`]
*
- * Each path may have a different return value, and PaymentSendValue may return a Vec with
+ * Each path may have a different return value, and [`PaymentSendFailure`] may return a `Vec` with
* each entry matching the corresponding-index entry in the route paths, see
- * PaymentSendFailure for more info.
+ * [`PaymentSendFailure`] for more info.
*
* In general, a path may raise:
* [`APIError::InvalidRoute`] when an invalid route or forwarding parameter (cltv_delta, fee,
* [`APIError::MonitorUpdateInProgress`] if a new monitor update failure prevented sending the
* relevant updates.
*
- * Note that depending on the type of the PaymentSendFailure the HTLC may have been
+ * Note that depending on the type of the [`PaymentSendFailure`] the HTLC may have been
* irrevocably committed to on our end. In such a case, do NOT retry the payment with a
* different route unless you intend to pay twice!
*
- * payment_secret is unrelated to payment_hash (or PaymentPreimage) and exists to authenticate
- * the sender to the recipient and prevent payment-probing (deanonymization) attacks. For
- * newer nodes, it will be provided to you in the invoice. If you do not have one, the Route
- * must not contain multiple paths as multi-path payments require a recipient-provided
- * payment_secret.
- *
- * If a payment_secret *is* provided, we assume that the invoice had the payment_secret feature
- * bit set (either as required or as available). If multiple paths are present in the Route,
- * we assume the invoice had the basic_mpp feature set.
- *
* [`Event::PaymentSent`]: events::Event::PaymentSent
+ * [`Event::PaymentFailed`]: events::Event::PaymentFailed
+ * [`UpdateHTLCs`]: events::MessageSendEvent::UpdateHTLCs
* [`PeerManager::process_events`]: crate::ln::peer_handler::PeerManager::process_events
- *
- * Note that payment_secret (or a relevant inner pointer) may be NULL or all-0s to represent None
+ * [`ChannelMonitorUpdateStatus::InProgress`]: crate::chain::ChannelMonitorUpdateStatus::InProgress
*/
- public Result_NonePaymentSendFailureZ send_payment(org.ldk.structs.Route route, byte[] payment_hash, @Nullable byte[] payment_secret, byte[] payment_id) {
- long ret = bindings.ChannelManager_send_payment(this.ptr, route == null ? 0 : route.ptr, InternalUtils.check_arr_len(payment_hash, 32), InternalUtils.check_arr_len(payment_secret, 32), InternalUtils.check_arr_len(payment_id, 32));
+ public Result_NonePaymentSendFailureZ send_payment_with_route(org.ldk.structs.Route route, byte[] payment_hash, org.ldk.structs.RecipientOnionFields recipient_onion, byte[] payment_id) {
+ long ret = bindings.ChannelManager_send_payment_with_route(this.ptr, route == null ? 0 : route.ptr, InternalUtils.check_arr_len(payment_hash, 32), recipient_onion == null ? 0 : recipient_onion.ptr, InternalUtils.check_arr_len(payment_id, 32));
Reference.reachabilityFence(this);
Reference.reachabilityFence(route);
Reference.reachabilityFence(payment_hash);
- Reference.reachabilityFence(payment_secret);
+ Reference.reachabilityFence(recipient_onion);
Reference.reachabilityFence(payment_id);
if (ret >= 0 && ret <= 4096) { return null; }
Result_NonePaymentSendFailureZ ret_hu_conv = Result_NonePaymentSendFailureZ.constr_from_ptr(ret);
if (this != null) { this.ptrs_to.add(route); };
+ if (this != null) { this.ptrs_to.add(recipient_onion); };
return ret_hu_conv;
}
/**
- * Retries a payment along the given [`Route`].
- *
- * Errors returned are a superset of those returned from [`send_payment`], so see
- * [`send_payment`] documentation for more details on errors. This method will also error if the
- * retry amount puts the payment more than 10% over the payment's total amount, if the payment
- * for the given `payment_id` cannot be found (likely due to timeout or success), or if
- * further retries have been disabled with [`abandon_payment`].
- *
- * [`send_payment`]: [`ChannelManager::send_payment`]
- * [`abandon_payment`]: [`ChannelManager::abandon_payment`]
+ * Similar to [`ChannelManager::send_payment`], but will automatically find a route based on
+ * `route_params` and retry failed payment paths based on `retry_strategy`.
*/
- public Result_NonePaymentSendFailureZ retry_payment(org.ldk.structs.Route route, byte[] payment_id) {
- long ret = bindings.ChannelManager_retry_payment(this.ptr, route == null ? 0 : route.ptr, InternalUtils.check_arr_len(payment_id, 32));
+ public Result_NoneRetryableSendFailureZ send_payment(byte[] payment_hash, org.ldk.structs.RecipientOnionFields recipient_onion, byte[] payment_id, org.ldk.structs.RouteParameters route_params, org.ldk.structs.Retry retry_strategy) {
+ long ret = bindings.ChannelManager_send_payment(this.ptr, InternalUtils.check_arr_len(payment_hash, 32), recipient_onion == null ? 0 : recipient_onion.ptr, InternalUtils.check_arr_len(payment_id, 32), route_params == null ? 0 : route_params.ptr, retry_strategy.ptr);
Reference.reachabilityFence(this);
- Reference.reachabilityFence(route);
+ Reference.reachabilityFence(payment_hash);
+ Reference.reachabilityFence(recipient_onion);
Reference.reachabilityFence(payment_id);
+ Reference.reachabilityFence(route_params);
+ Reference.reachabilityFence(retry_strategy);
if (ret >= 0 && ret <= 4096) { return null; }
- Result_NonePaymentSendFailureZ ret_hu_conv = Result_NonePaymentSendFailureZ.constr_from_ptr(ret);
- if (this != null) { this.ptrs_to.add(route); };
+ Result_NoneRetryableSendFailureZ ret_hu_conv = Result_NoneRetryableSendFailureZ.constr_from_ptr(ret);
+ if (this != null) { this.ptrs_to.add(recipient_onion); };
+ if (this != null) { this.ptrs_to.add(route_params); };
+ if (this != null) { this.ptrs_to.add(retry_strategy); };
return ret_hu_conv;
}
/**
- * Signals that no further retries for the given payment will occur.
+ * Signals that no further retries for the given payment should occur. Useful if you have a
+ * pending outbound payment with retries remaining, but wish to stop retrying the payment before
+ * retries are exhausted.
*
- * After this method returns, no future calls to [`retry_payment`] for the given `payment_id`
- * are allowed. If no [`Event::PaymentFailed`] event had been generated before, one will be
- * generated as soon as there are no remaining pending HTLCs for this payment.
+ * If no [`Event::PaymentFailed`] event had been generated before, one will be generated as soon
+ * as there are no remaining pending HTLCs for this payment.
*
* Note that calling this method does *not* prevent a payment from succeeding. You must still
* wait until you receive either a [`Event::PaymentFailed`] or [`Event::PaymentSent`] event to
* determine the ultimate status of a payment.
*
* If an [`Event::PaymentFailed`] event is generated and we restart without this
- * [`ChannelManager`] having been persisted, the payment may still be in the pending state
- * upon restart. This allows further calls to [`retry_payment`] (and requiring a second call
- * to [`abandon_payment`] to mark the payment as failed again). Otherwise, future calls to
- * [`retry_payment`] will fail with [`PaymentSendFailure::ParameterError`].
+ * [`ChannelManager`] having been persisted, another [`Event::PaymentFailed`] may be generated.
*
- * [`abandon_payment`]: Self::abandon_payment
- * [`retry_payment`]: Self::retry_payment
* [`Event::PaymentFailed`]: events::Event::PaymentFailed
* [`Event::PaymentSent`]: events::Event::PaymentSent
*/
*
* Note that payment_preimage (or a relevant inner pointer) may be NULL or all-0s to represent None
*/
- public Result_PaymentHashPaymentSendFailureZ send_spontaneous_payment(org.ldk.structs.Route route, @Nullable byte[] payment_preimage, byte[] payment_id) {
- long ret = bindings.ChannelManager_send_spontaneous_payment(this.ptr, route == null ? 0 : route.ptr, InternalUtils.check_arr_len(payment_preimage, 32), InternalUtils.check_arr_len(payment_id, 32));
+ public Result_PaymentHashPaymentSendFailureZ send_spontaneous_payment(org.ldk.structs.Route route, @Nullable byte[] payment_preimage, org.ldk.structs.RecipientOnionFields recipient_onion, byte[] payment_id) {
+ long ret = bindings.ChannelManager_send_spontaneous_payment(this.ptr, route == null ? 0 : route.ptr, InternalUtils.check_arr_len(payment_preimage, 32), recipient_onion == null ? 0 : recipient_onion.ptr, InternalUtils.check_arr_len(payment_id, 32));
Reference.reachabilityFence(this);
Reference.reachabilityFence(route);
Reference.reachabilityFence(payment_preimage);
+ Reference.reachabilityFence(recipient_onion);
Reference.reachabilityFence(payment_id);
if (ret >= 0 && ret <= 4096) { return null; }
Result_PaymentHashPaymentSendFailureZ ret_hu_conv = Result_PaymentHashPaymentSendFailureZ.constr_from_ptr(ret);
if (this != null) { this.ptrs_to.add(route); };
+ if (this != null) { this.ptrs_to.add(recipient_onion); };
+ return ret_hu_conv;
+ }
+
+ /**
+ * Similar to [`ChannelManager::send_spontaneous_payment`], but will automatically find a route
+ * based on `route_params` and retry failed payment paths based on `retry_strategy`.
+ *
+ * See [`PaymentParameters::for_keysend`] for help in constructing `route_params` for spontaneous
+ * payments.
+ *
+ * [`PaymentParameters::for_keysend`]: crate::routing::router::PaymentParameters::for_keysend
+ *
+ * Note that payment_preimage (or a relevant inner pointer) may be NULL or all-0s to represent None
+ */
+ public Result_PaymentHashRetryableSendFailureZ send_spontaneous_payment_with_retry(@Nullable byte[] payment_preimage, org.ldk.structs.RecipientOnionFields recipient_onion, byte[] payment_id, org.ldk.structs.RouteParameters route_params, org.ldk.structs.Retry retry_strategy) {
+ long ret = bindings.ChannelManager_send_spontaneous_payment_with_retry(this.ptr, InternalUtils.check_arr_len(payment_preimage, 32), recipient_onion == null ? 0 : recipient_onion.ptr, InternalUtils.check_arr_len(payment_id, 32), route_params == null ? 0 : route_params.ptr, retry_strategy.ptr);
+ Reference.reachabilityFence(this);
+ Reference.reachabilityFence(payment_preimage);
+ Reference.reachabilityFence(recipient_onion);
+ Reference.reachabilityFence(payment_id);
+ Reference.reachabilityFence(route_params);
+ Reference.reachabilityFence(retry_strategy);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ Result_PaymentHashRetryableSendFailureZ ret_hu_conv = Result_PaymentHashRetryableSendFailureZ.constr_from_ptr(ret);
+ if (this != null) { this.ptrs_to.add(recipient_onion); };
+ if (this != null) { this.ptrs_to.add(route_params); };
+ if (this != null) { this.ptrs_to.add(retry_strategy); };
return ret_hu_conv;
}
* [`PaymentHash`] of probes based on a static secret and a random [`PaymentId`], which allows
* us to easily discern them from real payments.
*/
- public Result_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ send_probe(RouteHop[] hops) {
- long ret = bindings.ChannelManager_send_probe(this.ptr, hops != null ? Arrays.stream(hops).mapToLong(hops_conv_10 -> hops_conv_10 == null ? 0 : hops_conv_10.ptr).toArray() : null);
+ public Result_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ send_probe(org.ldk.structs.Path path) {
+ long ret = bindings.ChannelManager_send_probe(this.ptr, path == null ? 0 : path.ptr);
Reference.reachabilityFence(this);
- Reference.reachabilityFence(hops);
+ Reference.reachabilityFence(path);
if (ret >= 0 && ret <= 4096) { return null; }
Result_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ ret_hu_conv = Result_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ.constr_from_ptr(ret);
- for (RouteHop hops_conv_10: hops) { if (this != null) { this.ptrs_to.add(hops_conv_10); }; };
+ if (this != null) { this.ptrs_to.add(path); };
return ret_hu_conv;
}
* implemented by Bitcoin Core wallet. See <https://bitcoinops.org/en/topics/fee-sniping/>
* for more details.
*
- * [`Event::FundingGenerationReady`]: crate::util::events::Event::FundingGenerationReady
- * [`Event::ChannelClosed`]: crate::util::events::Event::ChannelClosed
+ * [`Event::FundingGenerationReady`]: crate::events::Event::FundingGenerationReady
+ * [`Event::ChannelClosed`]: crate::events::Event::ChannelClosed
*/
public Result_NoneAPIErrorZ funding_transaction_generated(byte[] temporary_channel_id, byte[] counterparty_node_id, byte[] funding_transaction) {
long ret = bindings.ChannelManager_funding_transaction_generated(this.ptr, InternalUtils.check_arr_len(temporary_channel_id, 32), InternalUtils.check_arr_len(counterparty_node_id, 33), funding_transaction);
* [`UserConfig::accept_intercept_htlcs`]: crate::util::config::UserConfig::accept_intercept_htlcs
* [`HTLCIntercepted`]: events::Event::HTLCIntercepted
*/
- public Result_NoneAPIErrorZ forward_intercepted_htlc(byte[] intercept_id, byte[] next_hop_channel_id, byte[] _next_node_id, long amt_to_forward_msat) {
- long ret = bindings.ChannelManager_forward_intercepted_htlc(this.ptr, InternalUtils.check_arr_len(intercept_id, 32), InternalUtils.check_arr_len(next_hop_channel_id, 32), InternalUtils.check_arr_len(_next_node_id, 33), amt_to_forward_msat);
+ public Result_NoneAPIErrorZ forward_intercepted_htlc(byte[] intercept_id, byte[] next_hop_channel_id, byte[] next_node_id, long amt_to_forward_msat) {
+ long ret = bindings.ChannelManager_forward_intercepted_htlc(this.ptr, InternalUtils.check_arr_len(intercept_id, 32), InternalUtils.check_arr_len(next_hop_channel_id, 32), InternalUtils.check_arr_len(next_node_id, 33), amt_to_forward_msat);
Reference.reachabilityFence(this);
Reference.reachabilityFence(intercept_id);
Reference.reachabilityFence(next_hop_channel_id);
- Reference.reachabilityFence(_next_node_id);
+ Reference.reachabilityFence(next_node_id);
Reference.reachabilityFence(amt_to_forward_msat);
if (ret >= 0 && ret <= 4096) { return null; }
Result_NoneAPIErrorZ ret_hu_conv = Result_NoneAPIErrorZ.constr_from_ptr(ret);
*
* This currently includes:
* Increasing or decreasing the on-chain feerate estimates for our outbound channels,
- * Broadcasting `ChannelUpdate` messages if we've been disconnected from our peer for more
+ * Broadcasting [`ChannelUpdate`] messages if we've been disconnected from our peer for more
* than a minute, informing the network that they should no longer attempt to route over
* the channel.
- * Expiring a channel's previous `ChannelConfig` if necessary to only allow forwarding HTLCs
- * with the current `ChannelConfig`.
+ * Expiring a channel's previous [`ChannelConfig`] if necessary to only allow forwarding HTLCs
+ * with the current [`ChannelConfig`].
+ * Removing peers which have disconnected but and no longer have any channels.
*
- * Note that this may cause reentrancy through `chain::Watch::update_channel` calls or feerate
+ * Note that this may cause reentrancy through [`chain::Watch::update_channel`] calls or feerate
* estimate fetches.
+ *
+ * [`ChannelUpdate`]: msgs::ChannelUpdate
+ * [`ChannelConfig`]: crate::util::config::ChannelConfig
*/
public void timer_tick_occurred() {
bindings.ChannelManager_timer_tick_occurred(this.ptr);
Reference.reachabilityFence(payment_hash);
}
+ /**
+ * This is a variant of [`ChannelManager::fail_htlc_backwards`] that allows you to specify the
+ * reason for the failure.
+ *
+ * See [`FailureCode`] for valid failure codes.
+ */
+ public void fail_htlc_backwards_with_reason(byte[] payment_hash, org.ldk.enums.FailureCode failure_code) {
+ bindings.ChannelManager_fail_htlc_backwards_with_reason(this.ptr, InternalUtils.check_arr_len(payment_hash, 32), failure_code);
+ Reference.reachabilityFence(this);
+ Reference.reachabilityFence(payment_hash);
+ Reference.reachabilityFence(failure_code);
+ }
+
/**
* Provides a payment preimage in response to [`Event::PaymentClaimable`], generating any
* [`MessageSendEvent`]s needed to claim the payment.
*
- * Note that calling this method does *not* guarantee that the payment has been claimed. You
- * must* wait for an [`Event::PaymentClaimed`] event which upon a successful claim will be
- * provided to your [`EventHandler`] when [`process_pending_events`] is next called.
+ * This method is guaranteed to ensure the payment has been claimed but only if the current
+ * height is strictly below [`Event::PaymentClaimable::claim_deadline`]. To avoid race
+ * conditions, you should wait for an [`Event::PaymentClaimed`] before considering the payment
+ * successful. It will generally be available in the next [`process_pending_events`] call.
*
* Note that if you did not set an `amount_msat` when calling [`create_inbound_payment`] or
* [`create_inbound_payment_for_hash`] you must check that the amount in the `PaymentClaimable`
* event matches your expectation. If you fail to do so and call this method, you may provide
* the sender \"proof-of-payment\" when they did not fulfill the full expected payment.
*
- * [`Event::PaymentClaimable`]: crate::util::events::Event::PaymentClaimable
- * [`Event::PaymentClaimed`]: crate::util::events::Event::PaymentClaimed
+ * [`Event::PaymentClaimable`]: crate::events::Event::PaymentClaimable
+ * [`Event::PaymentClaimable::claim_deadline`]: crate::events::Event::PaymentClaimable::claim_deadline
+ * [`Event::PaymentClaimed`]: crate::events::Event::PaymentClaimed
* [`process_pending_events`]: EventsProvider::process_pending_events
* [`create_inbound_payment`]: Self::create_inbound_payment
* [`create_inbound_payment_for_hash`]: Self::create_inbound_payment_for_hash
* [`PaymentHash`] and [`PaymentPreimage`] for you.
*
* The [`PaymentPreimage`] will ultimately be returned to you in the [`PaymentClaimable`], which
- * will have the [`PaymentClaimable::payment_preimage`] field filled in. That should then be
+ * will have the [`PaymentClaimable::purpose`] be [`PaymentPurpose::InvoicePayment`] with
+ * its [`PaymentPurpose::InvoicePayment::payment_preimage`] field filled in. That should then be
* passed directly to [`claim_funds`].
*
* See [`create_inbound_payment_for_hash`] for detailed documentation on behavior and requirements.
*
* Errors if `min_value_msat` is greater than total bitcoin supply.
*
+ * If `min_final_cltv_expiry_delta` is set to some value, then the payment will not be receivable
+ * on versions of LDK prior to 0.0.114.
+ *
* [`claim_funds`]: Self::claim_funds
* [`PaymentClaimable`]: events::Event::PaymentClaimable
- * [`PaymentClaimable::payment_preimage`]: events::Event::PaymentClaimable::payment_preimage
+ * [`PaymentClaimable::purpose`]: events::Event::PaymentClaimable::purpose
+ * [`PaymentPurpose::InvoicePayment`]: events::PaymentPurpose::InvoicePayment
+ * [`PaymentPurpose::InvoicePayment::payment_preimage`]: events::PaymentPurpose::InvoicePayment::payment_preimage
* [`create_inbound_payment_for_hash`]: Self::create_inbound_payment_for_hash
*/
- public Result_C2Tuple_PaymentHashPaymentSecretZNoneZ create_inbound_payment(org.ldk.structs.Option_u64Z min_value_msat, int invoice_expiry_delta_secs) {
- long ret = bindings.ChannelManager_create_inbound_payment(this.ptr, min_value_msat.ptr, invoice_expiry_delta_secs);
+ public Result_C2Tuple_PaymentHashPaymentSecretZNoneZ create_inbound_payment(org.ldk.structs.Option_u64Z min_value_msat, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
+ long ret = bindings.ChannelManager_create_inbound_payment(this.ptr, min_value_msat.ptr, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
Reference.reachabilityFence(this);
Reference.reachabilityFence(min_value_msat);
Reference.reachabilityFence(invoice_expiry_delta_secs);
+ Reference.reachabilityFence(min_final_cltv_expiry_delta);
if (ret >= 0 && ret <= 4096) { return null; }
Result_C2Tuple_PaymentHashPaymentSecretZNoneZ ret_hu_conv = Result_C2Tuple_PaymentHashPaymentSecretZNoneZ.constr_from_ptr(ret);
+ if (this != null) { this.ptrs_to.add(min_value_msat); };
+ if (this != null) { this.ptrs_to.add(min_final_cltv_expiry_delta); };
return ret_hu_conv;
}
Reference.reachabilityFence(invoice_expiry_delta_secs);
if (ret >= 0 && ret <= 4096) { return null; }
Result_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ ret_hu_conv = Result_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ.constr_from_ptr(ret);
+ if (this != null) { this.ptrs_to.add(min_value_msat); };
return ret_hu_conv;
}
* If you need exact expiry semantics, you should enforce them upon receipt of
* [`PaymentClaimable`].
*
- * Note that invoices generated for inbound payments should have their `min_final_cltv_expiry`
- * set to at least [`MIN_FINAL_CLTV_EXPIRY`].
+ * Note that invoices generated for inbound payments should have their `min_final_cltv_expiry_delta`
+ * set to at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`].
*
* Note that a malicious eavesdropper can intuit whether an inbound payment was created by
* `create_inbound_payment` or `create_inbound_payment_for_hash` based on runtime.
*
* Errors if `min_value_msat` is greater than total bitcoin supply.
*
+ * If `min_final_cltv_expiry_delta` is set to some value, then the payment will not be receivable
+ * on versions of LDK prior to 0.0.114.
+ *
* [`create_inbound_payment`]: Self::create_inbound_payment
* [`PaymentClaimable`]: events::Event::PaymentClaimable
*/
- public Result_PaymentSecretNoneZ create_inbound_payment_for_hash(byte[] payment_hash, org.ldk.structs.Option_u64Z min_value_msat, int invoice_expiry_delta_secs) {
- long ret = bindings.ChannelManager_create_inbound_payment_for_hash(this.ptr, InternalUtils.check_arr_len(payment_hash, 32), min_value_msat.ptr, invoice_expiry_delta_secs);
+ public Result_PaymentSecretNoneZ create_inbound_payment_for_hash(byte[] payment_hash, org.ldk.structs.Option_u64Z min_value_msat, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry) {
+ long ret = bindings.ChannelManager_create_inbound_payment_for_hash(this.ptr, InternalUtils.check_arr_len(payment_hash, 32), min_value_msat.ptr, invoice_expiry_delta_secs, min_final_cltv_expiry.ptr);
Reference.reachabilityFence(this);
Reference.reachabilityFence(payment_hash);
Reference.reachabilityFence(min_value_msat);
Reference.reachabilityFence(invoice_expiry_delta_secs);
+ Reference.reachabilityFence(min_final_cltv_expiry);
if (ret >= 0 && ret <= 4096) { return null; }
Result_PaymentSecretNoneZ ret_hu_conv = Result_PaymentSecretNoneZ.constr_from_ptr(ret);
+ if (this != null) { this.ptrs_to.add(min_value_msat); };
+ if (this != null) { this.ptrs_to.add(min_final_cltv_expiry); };
return ret_hu_conv;
}
Reference.reachabilityFence(invoice_expiry_delta_secs);
if (ret >= 0 && ret <= 4096) { return null; }
Result_PaymentSecretAPIErrorZ ret_hu_conv = Result_PaymentSecretAPIErrorZ.constr_from_ptr(ret);
+ if (this != null) { this.ptrs_to.add(min_value_msat); };
return ret_hu_conv;
}
}
/**
- * Blocks until ChannelManager needs to be persisted or a timeout is reached. It returns a bool
- * indicating whether persistence is necessary. Only one listener on
- * [`await_persistable_update`], [`await_persistable_update_timeout`], or a future returned by
- * [`get_persistable_update_future`] is guaranteed to be woken up.
+ * Gets a [`Future`] that completes when this [`ChannelManager`] needs to be persisted.
*
- * Note that this method is not available with the `no-std` feature.
- *
- * [`await_persistable_update`]: Self::await_persistable_update
- * [`await_persistable_update_timeout`]: Self::await_persistable_update_timeout
- * [`get_persistable_update_future`]: Self::get_persistable_update_future
+ * Note that callbacks registered on the [`Future`] MUST NOT call back into this
+ * [`ChannelManager`] and should instead register actions to be taken later.
*/
- public boolean await_persistable_update_timeout(long max_wait) {
- boolean ret = bindings.ChannelManager_await_persistable_update_timeout(this.ptr, max_wait);
+ public Future get_persistable_update_future() {
+ long ret = bindings.ChannelManager_get_persistable_update_future(this.ptr);
Reference.reachabilityFence(this);
- Reference.reachabilityFence(max_wait);
- return ret;
+ if (ret >= 0 && ret <= 4096) { return null; }
+ org.ldk.structs.Future ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.Future(null, ret); }
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
+ return ret_hu_conv;
}
/**
- * Blocks until ChannelManager needs to be persisted. Only one listener on
- * [`await_persistable_update`], `await_persistable_update_timeout`, or a future returned by
- * [`get_persistable_update_future`] is guaranteed to be woken up.
- *
- * [`await_persistable_update`]: Self::await_persistable_update
- * [`get_persistable_update_future`]: Self::get_persistable_update_future
+ * Gets the latest best block which was connected either via the [`chain::Listen`] or
+ * [`chain::Confirm`] interfaces.
*/
- public void await_persistable_update() {
- bindings.ChannelManager_await_persistable_update(this.ptr);
+ public BestBlock current_best_block() {
+ long ret = bindings.ChannelManager_current_best_block(this.ptr);
Reference.reachabilityFence(this);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ org.ldk.structs.BestBlock ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.BestBlock(null, ret); }
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
+ return ret_hu_conv;
}
/**
- * Gets a [`Future`] that completes when a persistable update is available. Note that
- * callbacks registered on the [`Future`] MUST NOT call back into this [`ChannelManager`] and
- * should instead register actions to be taken later.
+ * Fetches the set of [`NodeFeatures`] flags which are provided by or required by
+ * [`ChannelManager`].
*/
- public Future get_persistable_update_future() {
- long ret = bindings.ChannelManager_get_persistable_update_future(this.ptr);
+ public NodeFeatures node_features() {
+ long ret = bindings.ChannelManager_node_features(this.ptr);
Reference.reachabilityFence(this);
if (ret >= 0 && ret <= 4096) { return null; }
- org.ldk.structs.Future ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.Future(null, ret); }
+ org.ldk.structs.NodeFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.NodeFeatures(null, ret); }
if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
return ret_hu_conv;
}
/**
- * Gets the latest best block which was connected either via the [`chain::Listen`] or
- * [`chain::Confirm`] interfaces.
+ * Fetches the set of [`ChannelFeatures`] flags which are provided by or required by
+ * [`ChannelManager`].
*/
- public BestBlock current_best_block() {
- long ret = bindings.ChannelManager_current_best_block(this.ptr);
+ public ChannelFeatures channel_features() {
+ long ret = bindings.ChannelManager_channel_features(this.ptr);
Reference.reachabilityFence(this);
if (ret >= 0 && ret <= 4096) { return null; }
- org.ldk.structs.BestBlock ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.BestBlock(null, ret); }
+ org.ldk.structs.ChannelFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.ChannelFeatures(null, ret); }
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
+ return ret_hu_conv;
+ }
+
+ /**
+ * Fetches the set of [`ChannelTypeFeatures`] flags which are provided by or required by
+ * [`ChannelManager`].
+ */
+ public ChannelTypeFeatures channel_type_features() {
+ long ret = bindings.ChannelManager_channel_type_features(this.ptr);
+ Reference.reachabilityFence(this);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ org.ldk.structs.ChannelTypeFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.ChannelTypeFeatures(null, ret); }
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
+ return ret_hu_conv;
+ }
+
+ /**
+ * Fetches the set of [`InitFeatures`] flags which are provided by or required by
+ * [`ChannelManager`].
+ */
+ public InitFeatures init_features() {
+ long ret = bindings.ChannelManager_init_features(this.ptr);
+ Reference.reachabilityFence(this);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ org.ldk.structs.InitFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.InitFeatures(null, ret); }
if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
return ret_hu_conv;
}
return ret;
}
- /**
- * Constructs a new Payer which calls the relevant methods on this_arg.
- * This copies the `inner` pointer in this_arg and thus the returned Payer must be freed before this_arg is
- */
- public Payer as_Payer() {
- long ret = bindings.ChannelManager_as_Payer(this.ptr);
- Reference.reachabilityFence(this);
- if (ret >= 0 && ret <= 4096) { return null; }
- Payer ret_hu_conv = new Payer(null, ret);
- if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
- return ret_hu_conv;
- }
-
}
projects / ldk-java / blobdiff