3 import org.junit.jupiter.api.Test;
4 import org.ldk.impl.bindings;
6 import java.util.concurrent.ConcurrentLinkedQueue;
8 public class PeerTest {
11 final long fee_estimator;
12 final long tx_broadcaster;
13 final long chain_monitor;
15 final long keys_interface;
17 final long chan_manager;
18 final long chan_handler;
20 final long route_handler;
21 final long message_handler;
22 final long peer_manager;
25 logger = bindings.LDKLogger_new((String arg)-> System.out.println(seed + ": " + arg));
26 this.fee_estimator = bindings.LDKFeeEstimator_new(confirmation_target -> 0);
27 this.tx_broadcaster = bindings.LDKBroadcasterInterface_new(tx -> {
28 // We should broadcast
30 this.chain_monitor = bindings.LDKWatch_new(new bindings.LDKWatch() {
32 public long watch_channel(long funding_txo, long monitor) {
37 public long update_channel(long funding_txo, long update) {
42 public long release_pending_monitor_events() {
47 byte[] key_seed = new byte[32];
48 for (byte i = 0; i < 32; i++) { key_seed[i] = (byte) (i ^ seed); }
49 this.keys = bindings.KeysManager_new(key_seed, bindings.LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int)(System.currentTimeMillis() * 1000) & 0xffffffff);
50 this.keys_interface = bindings.KeysManager_as_KeysInterface(keys);
51 this.config = bindings.UserConfig_default();
52 this.chan_manager = bindings.ChannelManager_new(bindings.LDKNetwork.LDKNetwork_Bitcoin, fee_estimator, chain_monitor, tx_broadcaster, logger, keys_interface, config, 1);
54 this.chan_handler = bindings.ChannelManager_as_ChannelMessageHandler(chan_manager);
55 this.router = bindings.NetGraphMsgHandler_new(0, logger);
56 this.route_handler = bindings.NetGraphMsgHandler_as_RoutingMessageHandler(router);
57 this.message_handler = bindings.MessageHandler_new(chan_handler, route_handler);
59 byte[] random_data = new byte[32];
60 for (byte i = 0; i < 32; i++) { random_data[i] = (byte) ((i ^ seed) ^ 0xf0); }
61 this.peer_manager = bindings.PeerManager_new(message_handler, bindings.LDKKeysInterface_call_get_node_secret(keys_interface), random_data, logger);
65 // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
66 bindings.Logger_free(logger);
67 bindings.FeeEstimator_free(fee_estimator);
68 bindings.BroadcasterInterface_free(tx_broadcaster);
69 bindings.Watch_free(chain_monitor);
70 bindings.KeysManager_free(keys);
71 bindings.KeysInterface_free(keys_interface);
72 bindings.ChannelManager_free(chan_manager);
73 bindings.ChannelMessageHandler_free(chan_handler);
74 bindings.NetGraphMsgHandler_free(router);
75 bindings.RoutingMessageHandler_free(route_handler);
76 //MessageHandler was actually moved into the route_handler!: bindings.MessageHandler_free(message_handler);
77 bindings.PeerManager_free(peer_manager);
81 class LongHolder { long val; }
83 byte[] do_read_event(ConcurrentLinkedQueue<Thread> list, long pm, long descriptor, long data) {
84 byte[] arr = bindings.get_u8_slice_bytes(data);
85 Thread thread = new Thread(() -> {
86 long arr_vec = bindings.bytes_to_u8_vec(arr);
87 long res = bindings.PeerManager_read_event(pm, descriptor, arr_vec);
88 assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
89 //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
90 bindings.CResult_boolPeerHandleErrorZ_free(res);
91 bindings.free_heap_ptr(arr_vec);
99 void test_message_handler() throws InterruptedException {
100 Peer peer1 = new Peer((byte) 1);
101 Peer peer2 = new Peer((byte) 2);
103 ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
104 LongHolder descriptor1 = new LongHolder();
105 LongHolder descriptor1ref = descriptor1;
106 long descriptor2 = bindings.LDKSocketDescriptor_new(new bindings.LDKSocketDescriptor() {
108 public long send_data(long data, boolean resume_read) {
109 return do_read_event(list, peer1.peer_manager, descriptor1ref.val, data).length;
112 @Override public void disconnect_socket() { assert false; }
113 @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 2; }
114 @Override public long hash() { return 2; }
117 descriptor1.val = bindings.LDKSocketDescriptor_new(new bindings.LDKSocketDescriptor() {
119 public long send_data(long data, boolean resume_read) {
120 return do_read_event(list, peer2.peer_manager, descriptor2, data).length;
123 @Override public void disconnect_socket() { assert false; }
124 @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 1; }
125 @Override public long hash() { return 1; }
128 long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager, bindings.ChannelManager_get_our_node_id(peer2.chan_manager), descriptor1.val);
129 assert(bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
131 long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager, descriptor2);
132 assert(bindings.LDKCResult_NonePeerHandleErrorZ_result_ok(con_res));
133 bindings.CResult_NonePeerHandleErrorZ_free(con_res);
134 do_read_event(list, peer2.peer_manager, descriptor2, bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_inner(init_vec));
135 bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
137 while (!list.isEmpty()) {
143 bindings.SocketDescriptor_free(descriptor2);
144 bindings.SocketDescriptor_free(descriptor1.val);