public void Start()
{
this.logger.LogTrace("()");
this.Parameters.UserAgent = $"{this.NodeSettings.Agent}:{this.GetVersion()}";
this.Parameters.Version = this.NodeSettings.ProtocolVersion;
NetworkPeerConnectionParameters clonedParameters = this.Parameters.Clone();
clonedParameters.TemplateBehaviors.Add(new ConnectionManagerBehavior(false, this, this.loggerFactory));
// Don't start peer discovery if we have specified any nodes using the -connect arg.
if (!this.connectionManagerSettings.Connect.Any())
{
if (this.Parameters.PeerAddressManagerBehaviour().Mode.HasFlag(PeerAddressManagerBehaviourMode.Discover))
{
this.logger.LogInformation("Starting peer discovery...");
this.peerDiscoveryLoop = new PeerDiscoveryLoop(this.asyncLoopFactory, this.Network, clonedParameters, this.nodeLifetime, this.peerAddressManager, this.networkPeerFactory);
this.peerDiscoveryLoop.DiscoverPeers();
}
this.DiscoverNodesPeerConnector = this.CreatePeerConnector(clonedParameters, this.discoveredNodeRequiredService, WellKnownPeerConnectorSelectors.ByNetwork, PeerIntroductionType.Discover);
}
else
{
// Use if we have specified any nodes using the -connect arg
var peers = this.connectionManagerSettings.Connect.Select(node => new NetworkAddress(node)).ToArray();
this.peerAddressManager.AddPeers(peers, IPAddress.Loopback, PeerIntroductionType.Connect);
clonedParameters.PeerAddressManagerBehaviour().Mode = PeerAddressManagerBehaviourMode.None;
this.ConnectNodePeerConnector = this.CreatePeerConnector(clonedParameters, NetworkPeerServices.Nothing, WellKnownPeerConnectorSelectors.ByEndpoint, PeerIntroductionType.Connect, this.connectionManagerSettings.Connect.Count);
}
{
// Use if we have specified any nodes using the -addnode arg
var peers = this.connectionManagerSettings.AddNode.Select(node => new NetworkAddress(node)).ToArray();
this.peerAddressManager.AddPeers(peers, IPAddress.Loopback, PeerIntroductionType.Add);
clonedParameters.PeerAddressManagerBehaviour().Mode = PeerAddressManagerBehaviourMode.AdvertiseDiscover;
this.AddNodePeerConnector = this.CreatePeerConnector(clonedParameters, NetworkPeerServices.Nothing, WellKnownPeerConnectorSelectors.ByEndpoint, PeerIntroductionType.Add, this.connectionManagerSettings.AddNode.Count);
}
// Relate the peer connectors to each other to prevent duplicate connections.
var relatedPeerConnectors = new RelatedPeerConnectors();
relatedPeerConnectors.Register("Discovery", this.DiscoverNodesPeerConnector);
relatedPeerConnectors.Register("Connect", this.ConnectNodePeerConnector);
relatedPeerConnectors.Register("AddNode", this.AddNodePeerConnector);
this.DiscoverNodesPeerConnector?.StartConnectAsync();
this.ConnectNodePeerConnector?.StartConnectAsync();
this.AddNodePeerConnector?.StartConnectAsync();
this.StartNodeServer();
this.logger.LogTrace("(-)");
}
/// <inheritdoc/>
public void DiscoverPeers(NetworkPeerConnectionParameters parameters)
{
// If peers are specified in the -connect arg then discovery does not happen.
if (this.nodeSettings.ConnectionManager.Connect.Any())
{
return;
}
if (!parameters.PeerAddressManagerBehaviour().Mode.HasFlag(PeerAddressManagerBehaviourMode.Discover))
{
return;
}
this.currentParameters = parameters;
this.peersToFind = this.currentParameters.PeerAddressManagerBehaviour().PeersToDiscover;
this.logger.LogInformation("Starting peer discovery...");
this.asyncLoop = this.asyncLoopFactory.Run(nameof(this.DiscoverPeersAsync), async token =>
{
if (this.peerAddressManager.Peers.Count < this.peersToFind)
{
await this.DiscoverPeersAsync();
}
},
this.nodeLifetime.ApplicationStopping,
TimeSpans.Minute);
}