import org.ldk.structs.*;
import org.ldk.util.TwoTuple;
+import java.io.IOException;
+
/**
* A simple utility class which assists in constructing a fresh or deserializing from disk a ChannelManager and one or
* more ChannelMonitors.
+ *
+ * Also constructs a PeerManager and spawns a background thread to monitor for and notify you of relevant Events.
*/
public class ChannelManagerConstructor {
/**
* and then continue to normal application operation.
*/
public final TwoTuple<ChannelMonitor, byte[]>[] channel_monitors;
+ /**
+ * A PeerManager which is constructed to pass messages and handle connections to peers.
+ */
+ public final PeerManager peer_manager;
+ /**
+ * A NioPeerHandler which manages a background thread to handle socket events and pass them to the peer_manager.
+ */
+ public final NioPeerHandler nio_peer_handler;
private final ChainMonitor chain_monitor;
+ private final Logger logger;
+
/**
* Deserializes a channel manager and a set of channel monitors from the given serialized copies and interface implementations
*
*/
public ChannelManagerConstructor(byte[] channel_manager_serialized, byte[][] channel_monitors_serialized,
KeysInterface keys_interface, FeeEstimator fee_estimator, ChainMonitor chain_monitor, @Nullable Filter filter,
+ @Nullable NetGraphMsgHandler router,
BroadcasterInterface tx_broadcaster, Logger logger) throws InvalidSerializedDataException {
final ChannelMonitor[] monitors = new ChannelMonitor[channel_monitors_serialized.length];
this.channel_monitors = new TwoTuple[monitors.length];
for (int i = 0; i < monitors.length; i++) {
- Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ res = UtilMethods.constructor_BlockHashChannelMonitorZ_read(channel_monitors_serialized[i], keys_interface);
+ Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ res = UtilMethods.BlockHashChannelMonitorZ_read(channel_monitors_serialized[i], keys_interface);
if (res instanceof Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_Err) {
throw new InvalidSerializedDataException();
}
this.channel_monitors[i] = new TwoTuple<>(monitors[i], ((Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK)res).res.a);
}
Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ res =
- UtilMethods.constructor_BlockHashChannelManagerZ_read(channel_manager_serialized, keys_interface, fee_estimator, chain_monitor.as_Watch(), tx_broadcaster,
- logger, UserConfig.constructor_default(), monitors);
+ UtilMethods.BlockHashChannelManagerZ_read(channel_manager_serialized, keys_interface, fee_estimator, chain_monitor.as_Watch(), tx_broadcaster,
+ logger, UserConfig.with_default(), monitors);
if (res instanceof Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_Err) {
throw new InvalidSerializedDataException();
}
this.channel_manager = ((Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_OK)res).res.b;
this.channel_manager_latest_block_hash = ((Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_OK)res).res.a;
this.chain_monitor = chain_monitor;
+ this.logger = logger;
+ byte[] random_data = keys_interface.get_secure_random_bytes();
+ if (router != null) {
+ this.peer_manager = PeerManager.of(channel_manager.as_ChannelMessageHandler(), router.as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, logger);
+ } else {
+ this.peer_manager = PeerManager.of(channel_manager.as_ChannelMessageHandler(), (IgnoringMessageHandler.of()).as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, logger);
+ }
+ NioPeerHandler nio_peer_handler = null;
+ try { nio_peer_handler = new NioPeerHandler(this.peer_manager); } catch (IOException e) { assert false; }
+ this.nio_peer_handler = nio_peer_handler;
if (filter != null) {
for (ChannelMonitor monitor : monitors) {
monitor.load_outputs_to_watch(filter);
*/
public ChannelManagerConstructor(LDKNetwork network, UserConfig config, byte[] current_blockchain_tip_hash, int current_blockchain_tip_height,
KeysInterface keys_interface, FeeEstimator fee_estimator, ChainMonitor chain_monitor,
+ @Nullable NetGraphMsgHandler router,
BroadcasterInterface tx_broadcaster, Logger logger) throws InvalidSerializedDataException {
channel_monitors = new TwoTuple[0];
channel_manager_latest_block_hash = null;
this.chain_monitor = chain_monitor;
- BestBlock block = BestBlock.constructor_new(current_blockchain_tip_hash, current_blockchain_tip_height);
- channel_manager = ChannelManager.constructor_new(fee_estimator, chain_monitor.as_Watch(), tx_broadcaster, logger, keys_interface, config, network, block);
+ BestBlock block = BestBlock.of(current_blockchain_tip_hash, current_blockchain_tip_height);
+ ChainParameters params = ChainParameters.of(network, block);
+ channel_manager = ChannelManager.of(fee_estimator, chain_monitor.as_Watch(), tx_broadcaster, logger, keys_interface, config, params);
+ this.logger = logger;
+ byte[] random_data = keys_interface.get_secure_random_bytes();
+ if (router != null) {
+ this.peer_manager = PeerManager.of(channel_manager.as_ChannelMessageHandler(), router.as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, logger);
+ } else {
+ this.peer_manager = PeerManager.of(channel_manager.as_ChannelMessageHandler(), (IgnoringMessageHandler.of()).as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, logger);
+ }
+ NioPeerHandler nio_peer_handler = null;
+ try { nio_peer_handler = new NioPeerHandler(this.peer_manager); } catch (IOException e) { assert false; }
+ this.nio_peer_handler = nio_peer_handler;
}
/**
* a background thread is started which will automatically call these methods for you when events occur.
*/
public interface ChannelManagerPersister {
- void handle_events(Event[] events);
+ void handle_event(Event events);
void persist_manager(byte[] channel_manager_bytes);
}
- Thread persister_thread = null;
- volatile boolean shutdown = false;
+ BackgroundProcessor background_processor = null;
/**
* Utility which adds all of the deserialized ChannelMonitors to the chain watch so that further updates from the
* ChannelManagerPersister as required.
*/
public void chain_sync_completed(ChannelManagerPersister persister) {
- if (persister_thread != null) { return; }
+ if (background_processor != null) { return; }
for (TwoTuple<ChannelMonitor, byte[]> monitor: channel_monitors) {
this.chain_monitor.as_Watch().watch_channel(monitor.a.get_funding_txo().a, monitor.a);
}
- persister_thread = new Thread(() -> {
- long lastTimerTick = System.currentTimeMillis();
- while (true) {
- boolean need_persist = this.channel_manager.await_persistable_update_timeout(1);
- Event[] events = this.channel_manager.as_EventsProvider().get_and_clear_pending_events();
- if (events.length != 0) {
- persister.handle_events(events);
- need_persist = true;
- }
- events = this.chain_monitor.as_EventsProvider().get_and_clear_pending_events();
-
- if (events.length != 0) {
- persister.handle_events(events);
- need_persist = true;
- }
- if (need_persist) {
- persister.persist_manager(this.channel_manager.write());
- }
- if (shutdown) {
- return;
- }
- if (lastTimerTick < System.currentTimeMillis() - 60 * 1000) {
- this.channel_manager.timer_tick_occurred();
- lastTimerTick = System.currentTimeMillis();
- }
- }
- }, "NioPeerHandler NIO Thread");
- persister_thread.start();
+ background_processor = BackgroundProcessor.start(org.ldk.structs.ChannelManagerPersister.new_impl(channel_manager -> {
+ persister.persist_manager(channel_manager.write());
+ return Result_NoneErrorZ.ok();
+ }), EventHandler.new_impl(persister::handle_event),
+ this.chain_monitor, this.channel_manager, this.peer_manager, this.logger);
}
/**
- * Interrupt the background thread, stopping the background handling of
+ * Interrupt the background thread, stopping the background handling of events.
*/
public void interrupt() {
- shutdown = true;
- try {
- persister_thread.join();
- } catch (InterruptedException ignored) { }
+ this.background_processor.stop();
+ this.nio_peer_handler.interrupt();
}
}
projects / ldk-java / blobdiff