private PeerEndPoint[] QueryAnnounce(NodeContact[] initialContacts, BinaryNumber networkID, ushort servicePort)
{
NodeContact[] contacts = QueryFindNode(initialContacts, networkID);
if ((contacts == null) || (contacts.Length == 0))
{
return(null);
}
List <PeerEndPoint> peers = new List <PeerEndPoint>();
lock (peers)
{
foreach (NodeContact contact in contacts)
{
Thread t = new Thread(delegate(object state)
{
DhtRpcPacket response = Query(DhtRpcPacket.CreateAnnouncePeerPacketQuery(_currentNode, networkID, servicePort), contact);
if ((response != null) && (response.Type == DhtRpcType.ANNOUNCE_PEER) && (response.Peers.Length > 0))
{
lock (peers)
{
foreach (PeerEndPoint peer in response.Peers)
{
if (!peers.Contains(peer))
{
peers.Add(peer);
}
}
Monitor.Pulse(peers);
}
}
});
t.IsBackground = true;
t.Start();
}
if (Monitor.Wait(peers, QUERY_TIMEOUT))
{
return(peers.ToArray());
}
return(null);
}
}
private void QueryAnnounceAsync(object state)
{
try
{
object[] parameters = state as object[];
NodeContact contact = parameters[0] as NodeContact;
BinaryID networkID = parameters[1] as BinaryID;
List <PeerEndPoint> peers = parameters[2] as List <PeerEndPoint>;
ushort servicePort = (ushort)parameters[3];
DhtRpcPacket responsePacket = Query(DhtRpcPacket.CreateFindPeersPacketQuery(_currentNode, networkID), contact);
if ((responsePacket != null) && (responsePacket.QueryType == RpcQueryType.FIND_PEERS))
{
if (responsePacket.Peers.Length > 0)
{
lock (peers)
{
foreach (PeerEndPoint peer in responsePacket.Peers)
{
if (!peers.Contains(peer))
{
peers.Add(peer);
}
}
//Monitor.Pulse(peers); //removed so that response from multiple nodes is collected till query times out
}
}
Query(DhtRpcPacket.CreateAnnouncePeerPacketQuery(_currentNode, networkID, servicePort, responsePacket.Token), contact);
}
}
catch
{ }
}