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_manager_events;
19 final long chan_handler;
21 final long route_handler;
22 final long message_handler;
23 final long peer_manager;
26 logger = bindings.LDKLogger_new((String arg)-> System.out.println(seed + ": " + arg));
27 this.fee_estimator = bindings.LDKFeeEstimator_new(confirmation_target -> 0);
28 this.tx_broadcaster = bindings.LDKBroadcasterInterface_new(tx -> {
29 // We should broadcast
31 this.chain_monitor = bindings.LDKWatch_new(new bindings.LDKWatch() {
33 public long watch_channel(long funding_txo, long monitor) {
34 return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
38 public long update_channel(long funding_txo, long update) {
39 return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
43 public long release_pending_monitor_events() {
44 return bindings.new_empty_slice_vec();
48 byte[] key_seed = new byte[32];
49 for (byte i = 0; i < 32; i++) { key_seed[i] = (byte) (i ^ seed); }
50 this.keys = bindings.KeysManager_new(key_seed, bindings.LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int)(System.currentTimeMillis() * 1000) & 0xffffffff);
51 this.keys_interface = bindings.KeysManager_as_KeysInterface(keys);
52 this.config = bindings.UserConfig_default();
53 this.chan_manager = bindings.ChannelManager_new(bindings.LDKNetwork.LDKNetwork_Bitcoin, fee_estimator, chain_monitor, tx_broadcaster, logger, keys_interface, config, 1);
54 this.chan_manager_events = bindings.ChannelManager_as_EventsProvider(chan_manager);
56 this.chan_handler = bindings.ChannelManager_as_ChannelMessageHandler(chan_manager);
57 this.router = bindings.NetGraphMsgHandler_new(0, logger);
58 this.route_handler = bindings.NetGraphMsgHandler_as_RoutingMessageHandler(router);
59 this.message_handler = bindings.MessageHandler_new(chan_handler, route_handler);
61 byte[] random_data = new byte[32];
62 for (byte i = 0; i < 32; i++) { random_data[i] = (byte) ((i ^ seed) ^ 0xf0); }
63 this.peer_manager = bindings.PeerManager_new(message_handler, bindings.LDKKeysInterface_call_get_node_secret(keys_interface), random_data, logger);
67 // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
68 bindings.Logger_free(logger);
69 bindings.FeeEstimator_free(fee_estimator);
70 bindings.BroadcasterInterface_free(tx_broadcaster);
71 bindings.Watch_free(chain_monitor);
72 bindings.KeysManager_free(keys);
73 bindings.KeysInterface_free(keys_interface);
74 bindings.ChannelManager_free(chan_manager);
75 bindings.EventsProvider_free(chan_manager_events);
76 bindings.ChannelMessageHandler_free(chan_handler);
77 bindings.NetGraphMsgHandler_free(router);
78 bindings.RoutingMessageHandler_free(route_handler);
79 //MessageHandler was actually moved into the route_handler!: bindings.MessageHandler_free(message_handler);
80 bindings.PeerManager_free(peer_manager);
84 class LongHolder { long val; }
86 byte[] do_read_event(ConcurrentLinkedQueue<Thread> list, long pm, long descriptor, long data) {
87 byte[] arr = bindings.get_u8_slice_bytes(data);
88 Thread thread = new Thread(() -> {
89 long arr_vec = bindings.bytes_to_u8_vec(arr);
90 long res = bindings.PeerManager_read_event(pm, descriptor, arr_vec);
91 assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
92 //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
93 bindings.CResult_boolPeerHandleErrorZ_free(res);
94 bindings.free_heap_ptr(arr_vec);
102 void test_message_handler() throws InterruptedException {
103 Peer peer1 = new Peer((byte) 1);
104 Peer peer2 = new Peer((byte) 2);
106 ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
107 LongHolder descriptor1 = new LongHolder();
108 LongHolder descriptor1ref = descriptor1;
109 long descriptor2 = bindings.LDKSocketDescriptor_new(new bindings.LDKSocketDescriptor() {
111 public long send_data(long data, boolean resume_read) {
112 return do_read_event(list, peer1.peer_manager, descriptor1ref.val, data).length;
115 @Override public void disconnect_socket() { assert false; }
116 @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 2; }
117 @Override public long hash() { return 2; }
120 descriptor1.val = bindings.LDKSocketDescriptor_new(new bindings.LDKSocketDescriptor() {
122 public long send_data(long data, boolean resume_read) {
123 return do_read_event(list, peer2.peer_manager, descriptor2, data).length;
126 @Override public void disconnect_socket() { assert false; }
127 @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 1; }
128 @Override public long hash() { return 1; }
131 long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager, bindings.ChannelManager_get_our_node_id(peer2.chan_manager), descriptor1.val);
132 assert(bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
134 long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager, descriptor2);
135 assert(bindings.LDKCResult_NonePeerHandleErrorZ_result_ok(con_res));
136 bindings.CResult_NonePeerHandleErrorZ_free(con_res);
137 do_read_event(list, peer2.peer_manager, descriptor2, bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_inner(init_vec));
138 bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
140 while (!list.isEmpty()) { list.poll().join(); }
142 long cc_res = bindings.ChannelManager_create_channel(peer1.chan_manager, bindings.ChannelManager_get_our_node_id(peer2.chan_manager), 10000, 1000, 0, bindings.LDKUserConfig_optional_none());
143 assert bindings.LDKCResult_NoneAPIErrorZ_result_ok(cc_res);
144 bindings.CResult_NoneAPIErrorZ_free(cc_res);
146 bindings.PeerManager_process_events(peer1.peer_manager);
147 while (!list.isEmpty()) { list.poll().join(); }
148 bindings.PeerManager_process_events(peer2.peer_manager);
149 while (!list.isEmpty()) { list.poll().join(); }
151 long events = bindings.LDKEventsProvider_call_get_and_clear_pending_events(peer1.chan_manager_events);
152 bindings.VecOrSliceDef events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
153 assert events_arr_info.datalen == 1;
154 bindings.CVec_EventZ_free(events);
156 long peer1_chans = bindings.ChannelManager_list_channels(peer1.chan_manager);
157 long peer2_chans = bindings.ChannelManager_list_channels(peer2.chan_manager);
158 assert bindings.vec_slice_len(peer1_chans) == 1;
159 assert bindings.vec_slice_len(peer2_chans) == 1;
160 bindings.CVec_ChannelDetailsZ_free(peer1_chans);
161 bindings.CVec_ChannelDetailsZ_free(peer2_chans);
165 bindings.SocketDescriptor_free(descriptor2);
166 bindings.SocketDescriptor_free(descriptor1.val);