Examples with DHTOperationAdapter com.biglybt.core.dht.DHTOperationAdapter used on opensource projects

Example 1 with DHTOperationAdapter

use of com.biglybt.core.dht.DHTOperationAdapter in project BiglyBT by BiglySoftware.

the class DHTNATPuncherImpl method getRendezvous.

protected DHTTransportContact getRendezvous(String reason, DHTTransportContact target) {
    DHTTransportContact explicit = (DHTTransportContact) explicit_rendezvous_map.get(target.getAddress());
    if (explicit != null) {
        return (explicit);
    }
    String target_key = target.getAddress().toString();
    DHTTransportValue[] result_value = null;
    AESemaphore sem = null;
    long now = SystemTime.getMonotonousTime();
    synchronized (rendezvous_lookup_cache) {
        if (rendezvous_lookup_cache_tidy_time == -1) {
            rendezvous_lookup_cache_tidy_time = now;
        } else if (now - rendezvous_lookup_cache_tidy_time >= 2 * 60 * 1000) {
            rendezvous_lookup_cache_tidy_time = now;
            Iterator<Object[]> it = rendezvous_lookup_cache.values().iterator();
            while (it.hasNext()) {
                Object[] entry = it.next();
                long time = (Long) entry[0];
                if (time != -1 && now - time > 2 * 60 * 1000) {
                    it.remove();
                }
            }
        }
        Object[] existing = rendezvous_lookup_cache.get(target_key);
        boolean do_lookup;
        if (existing != null) {
            long time = (Long) existing[0];
            if (time == -1 || now - time < 2 * 60 * 1000) {
                sem = (AESemaphore) existing[1];
                result_value = (DHTTransportValue[]) existing[2];
                do_lookup = false;
            } else {
                do_lookup = true;
            }
        } else {
            do_lookup = true;
        }
        if (do_lookup) {
            result_value = new DHTTransportValue[1];
            sem = new AESemaphore("getRend");
            final Object[] entry = new Object[] { -1L, sem, result_value };
            byte[] key = getPublishKey(target);
            dht.get(key, reason + ": lookup for '" + target.getString() + "'", (byte) 0, 1, RENDEZVOUS_LOOKUP_TIMEOUT, false, true, new DHTOperationAdapter() {

                @Override
                public void read(DHTTransportContact contact, DHTTransportValue value) {
                    synchronized (rendezvous_lookup_cache) {
                        entry[0] = SystemTime.getMonotonousTime();
                        ((DHTTransportValue[]) entry[2])[0] = value;
                        ((AESemaphore) entry[1]).releaseForever();
                    }
                }

                @Override
                public void complete(boolean timeout) {
                    synchronized (rendezvous_lookup_cache) {
                        AESemaphore sem = (AESemaphore) entry[1];
                        if (!sem.isReleasedForever()) {
                            entry[0] = SystemTime.getMonotonousTime();
                            sem.releaseForever();
                        }
                    }
                }
            });
            rendezvous_lookup_cache.put(target_key, entry);
        }
    }
    sem.reserve();
    DHTTransportContact result = null;
    if (result_value[0] != null) {
        byte[] bytes = result_value[0].getValue();
        try {
            ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
            DataInputStream dis = new DataInputStream(bais);
            byte version = dis.readByte();
            if (version != 0) {
                throw (new Exception("Unsupported rendezvous version '" + version + "'"));
            }
            result = dht.getTransport().importContact(dis, false);
        } catch (Throwable e) {
            log(e);
        }
    }
    log("Lookup of rendezvous for " + target.getString() + " -> " + (result == null ? "None" : result.getString()));
    return (result);
}

Example 2 with DHTOperationAdapter

use of com.biglybt.core.dht.DHTOperationAdapter in project BiglyBT by BiglySoftware.

the class DHTNATPuncherImpl method destroy.

@Override
public void destroy() {
    try {
        server_mon.enter();
        Iterator<BindingData> it = rendezvous_bindings.values().iterator();
        while (it.hasNext()) {
            BindingData entry = it.next();
            final DHTTransportUDPContact contact = entry.getContact();
            new AEThread2("DHTNATPuncher:destroy", true) {

                @Override
                public void run() {
                    sendClose(contact);
                }
            }.start();
        }
        byte[] lpk = last_publish_key;
        List<DHTTransportContact> lws = last_write_set;
        if (lpk != null && lws != null) {
            log("Removing publish on closedown");
            DHTTransportContact[] contacts = lws.toArray(new DHTTransportContact[lws.size()]);
            dht.remove(contacts, lpk, "NAT Puncher destroy", new DHTOperationAdapter());
        }
    } catch (Throwable e) {
        log(e);
    } finally {
        server_mon.exit();
    }
}