3 import org.junit.jupiter.api.Test;
4 import org.ldk.impl.bindings;
5 import org.ldk.enums.*;
7 import java.util.Arrays;
8 import java.util.concurrent.ConcurrentLinkedQueue;
10 public class PeerTest {
13 final long fee_estimator;
14 final long tx_broadcaster;
15 final long chain_monitor;
17 final long keys_interface;
19 final long chan_manager;
20 final long chan_manager_events;
21 final long chan_handler;
23 final long route_handler;
24 final long message_handler;
25 final long peer_manager;
28 logger = bindings.LDKLogger_new((String arg)-> System.out.println(seed + ": " + arg));
29 this.fee_estimator = bindings.LDKFeeEstimator_new(confirmation_target -> 0);
30 this.tx_broadcaster = bindings.LDKBroadcasterInterface_new(tx -> {
31 // We should broadcast
33 this.chain_monitor = bindings.LDKWatch_new(new bindings.LDKWatch() {
35 public long watch_channel(long funding_txo, long monitor) {
36 return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
40 public long update_channel(long funding_txo, long update) {
41 return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
45 public long release_pending_monitor_events() {
46 return bindings.new_empty_slice_vec();
50 byte[] key_seed = new byte[32];
51 for (byte i = 0; i < 32; i++) { key_seed[i] = (byte) (i ^ seed); }
52 this.keys = bindings.KeysManager_new(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int)(System.currentTimeMillis() * 1000) & 0xffffffff);
53 this.keys_interface = bindings.KeysManager_as_KeysInterface(keys);
54 this.config = bindings.UserConfig_default();
55 this.chan_manager = bindings.ChannelManager_new(LDKNetwork.LDKNetwork_Bitcoin, fee_estimator, chain_monitor, tx_broadcaster, logger, keys_interface, config, 1);
56 this.chan_manager_events = bindings.ChannelManager_as_EventsProvider(chan_manager);
58 this.chan_handler = bindings.ChannelManager_as_ChannelMessageHandler(chan_manager);
59 this.router = bindings.NetGraphMsgHandler_new(0, logger);
60 this.route_handler = bindings.NetGraphMsgHandler_as_RoutingMessageHandler(router);
61 this.message_handler = bindings.MessageHandler_new(chan_handler, route_handler);
63 byte[] random_data = new byte[32];
64 for (byte i = 0; i < 32; i++) { random_data[i] = (byte) ((i ^ seed) ^ 0xf0); }
65 this.peer_manager = bindings.PeerManager_new(message_handler, bindings.LDKKeysInterface_call_get_node_secret(keys_interface), random_data, logger);
69 // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
70 bindings.Logger_free(logger);
71 bindings.FeeEstimator_free(fee_estimator);
72 bindings.BroadcasterInterface_free(tx_broadcaster);
73 bindings.Watch_free(chain_monitor);
74 bindings.KeysManager_free(keys);
75 bindings.KeysInterface_free(keys_interface);
76 bindings.ChannelManager_free(chan_manager);
77 bindings.EventsProvider_free(chan_manager_events);
78 bindings.ChannelMessageHandler_free(chan_handler);
79 bindings.NetGraphMsgHandler_free(router);
80 bindings.RoutingMessageHandler_free(route_handler);
81 //MessageHandler was actually moved into the route_handler!: bindings.MessageHandler_free(message_handler);
82 bindings.PeerManager_free(peer_manager);
86 class LongHolder { long val; }
88 byte[] do_read_event(ConcurrentLinkedQueue<Thread> list, long pm, long descriptor, long data) {
89 byte[] arr = bindings.get_u8_slice_bytes(data);
90 Thread thread = new Thread(() -> {
91 long arr_vec = bindings.bytes_to_u8_vec(arr);
92 long res = bindings.PeerManager_read_event(pm, descriptor, arr_vec);
93 assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
94 //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
95 bindings.CResult_boolPeerHandleErrorZ_free(res);
96 bindings.free_heap_ptr(arr_vec);
104 void test_message_handler() throws InterruptedException {
105 Peer peer1 = new Peer((byte) 1);
106 Peer peer2 = new Peer((byte) 2);
108 ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
109 LongHolder descriptor1 = new LongHolder();
110 LongHolder descriptor1ref = descriptor1;
111 long descriptor2 = bindings.LDKSocketDescriptor_new(new bindings.LDKSocketDescriptor() {
113 public long send_data(long data, boolean resume_read) {
114 return do_read_event(list, peer1.peer_manager, descriptor1ref.val, data).length;
117 @Override public void disconnect_socket() { assert false; }
118 @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 2; }
119 @Override public long hash() { return 2; }
122 descriptor1.val = bindings.LDKSocketDescriptor_new(new bindings.LDKSocketDescriptor() {
124 public long send_data(long data, boolean resume_read) {
125 return do_read_event(list, peer2.peer_manager, descriptor2, data).length;
128 @Override public void disconnect_socket() { assert false; }
129 @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 1; }
130 @Override public long hash() { return 1; }
133 long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager, bindings.ChannelManager_get_our_node_id(peer2.chan_manager), descriptor1.val);
134 assert(bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
136 long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager, descriptor2);
137 assert(bindings.LDKCResult_NonePeerHandleErrorZ_result_ok(con_res));
138 bindings.CResult_NonePeerHandleErrorZ_free(con_res);
139 do_read_event(list, peer2.peer_manager, descriptor2, bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_inner(init_vec));
140 bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
142 while (!list.isEmpty()) { list.poll().join(); }
144 long cc_res = bindings.ChannelManager_create_channel(peer1.chan_manager, bindings.ChannelManager_get_our_node_id(peer2.chan_manager), 10000, 1000, 42, bindings.LDKUserConfig_optional_none());
145 assert bindings.LDKCResult_NoneAPIErrorZ_result_ok(cc_res);
146 bindings.CResult_NoneAPIErrorZ_free(cc_res);
148 bindings.PeerManager_process_events(peer1.peer_manager);
149 while (!list.isEmpty()) { list.poll().join(); }
150 bindings.PeerManager_process_events(peer2.peer_manager);
151 while (!list.isEmpty()) { list.poll().join(); }
153 long events = bindings.LDKEventsProvider_call_get_and_clear_pending_events(peer1.chan_manager_events);
154 bindings.VecOrSliceDef events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
155 assert events_arr_info.datalen == 1;
156 bindings.LDKEvent event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
157 assert event instanceof bindings.LDKEvent.FundingGenerationReady;
158 assert ((bindings.LDKEvent.FundingGenerationReady)event).channel_value_satoshis == 10000;
159 assert ((bindings.LDKEvent.FundingGenerationReady)event).user_channel_id == 42;
160 byte[] funding_spk = bindings.get_u8_slice_bytes(((bindings.LDKEvent.FundingGenerationReady)event).output_script);
161 assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
162 byte[] chan_id = ((bindings.LDKEvent.FundingGenerationReady)event).temporary_channel_id;
163 bindings.CVec_EventZ_free(events);
165 //bindings.ChannelManager_funding_transaction_generated(peer1.chan_manager, chan_id, bindings.OutPoint);
167 long peer1_chans = bindings.ChannelManager_list_channels(peer1.chan_manager);
168 long peer2_chans = bindings.ChannelManager_list_channels(peer2.chan_manager);
169 assert bindings.vec_slice_len(peer1_chans) == 1;
170 assert bindings.vec_slice_len(peer2_chans) == 1;
171 long peer_1_chan_info_ptr = bindings.LDKCVecTempl_ChannelDetails_arr_info(peer1_chans).dataptr;
172 assert bindings.ChannelDetails_get_channel_value_satoshis(peer_1_chan_info_ptr) == 10000;
173 assert !bindings.ChannelDetails_get_is_live(peer_1_chan_info_ptr);
174 assert Arrays.equals(bindings.ChannelDetails_get_channel_id(peer_1_chan_info_ptr), chan_id);
175 assert Arrays.equals(bindings.ChannelDetails_get_channel_id(bindings.LDKCVecTempl_ChannelDetails_arr_info(peer2_chans).dataptr), chan_id);
176 bindings.CVec_ChannelDetailsZ_free(peer1_chans);
177 bindings.CVec_ChannelDetailsZ_free(peer2_chans);
181 bindings.SocketDescriptor_free(descriptor2);
182 bindings.SocketDescriptor_free(descriptor1.val);