public NodeConnectionParameters(NodeConnectionParameters other)
{
Version = other.Version;
IsRelay = other.IsRelay;
Services = other.Services;
ReceiveBufferSize = other.ReceiveBufferSize;
SendBufferSize = other.SendBufferSize;
ConnectCancellation = other.ConnectCancellation;
UserAgent = other.UserAgent;
AddressFrom = other.AddressFrom;
Nonce = other.Nonce;
Advertize = other.Advertize;
PreferredTransactionOptions = other.PreferredTransactionOptions;
foreach (var behavior in other.TemplateBehaviors)
{
TemplateBehaviors.Add(behavior.Clone());
}
}
internal void DiscoverPeers(ProtocolData network, NodeConnectionParameters parameters, int peerToFind)
{
//TraceCorrelation traceCorrelation = new TraceCorrelation(NodeServerTrace.Trace, "Discovering nodes");
int found = 0;
while (found < peerToFind)
{
parameters.ConnectCancellation.ThrowIfCancellationRequested();
//NodeServerTrace.PeerTableRemainingPeerToGet(-found + peerToFind);
List <NetworkAddress> peers = new List <NetworkAddress>();
peers.AddRange(this.GetAddr());
CancellationTokenSource peerTableFull = new CancellationTokenSource();
CancellationToken loopCancel = CancellationTokenSource.CreateLinkedTokenSource(peerTableFull.Token, parameters.ConnectCancellation).Token;
try
{
Parallel.ForEach(peers, new ParallelOptions()
{
MaxDegreeOfParallelism = 5,
CancellationToken = loopCancel,
}, p =>
{
CancellationTokenSource timeout = new CancellationTokenSource(TimeSpan.FromSeconds(5));
var cancelConnection = CancellationTokenSource.CreateLinkedTokenSource(timeout.Token, loopCancel);
Node n = null;
try
{
var param2 = parameters.Clone();
param2.ConnectCancellation = cancelConnection.Token;
var addrman = param2.TemplateBehaviors.Find <AddressManagerBehavior>();
param2.TemplateBehaviors.Clear();
param2.TemplateBehaviors.Add(addrman);
n = Node.Connect(network, p.Endpoint, param2);
n.VersionHandshake(cancelConnection.Token);
n.MessageReceived += (s, a) =>
{
var addr = (a.Message.Payload as AddrPayload);
if (addr != null)
{
Interlocked.Add(ref found, addr.Addresses.Length);
if (found >= peerToFind)
{
peerTableFull.Cancel();
}
}
};
n.SendMessageAsync(new GetAddrPayload());
loopCancel.WaitHandle.WaitOne(2000);
}
catch
{
}
finally
{
if (n != null)
{
n.DisconnectAsync();
}
}
if (found >= peerToFind)
{
peerTableFull.Cancel();
}
//else
// NodeServerTrace.Information("Need " + (-found + peerToFind) + " more peers");
});
}
catch (OperationCanceledException)
{
if (parameters.ConnectCancellation.IsCancellationRequested)
{
throw;
}
}
}
}