internal static NetworkPath InternalChooseDagNetworkPath(string targetName, string networkName, NetworkPath.ConnectionPurpose purpose)
{
string nodeNameFromFqdn = MachineName.GetNodeNameFromFqdn(targetName);
NetworkManager manager = NetworkManager.GetManager();
NetworkPath networkPath = null;
DagNetConfig dagNetConfig = null;
manager.TryWaitForInitialization();
if (manager.m_netMap != null)
{
networkPath = manager.m_netMap.ChoosePath(nodeNameFromFqdn, networkName);
}
else
{
DagNetRoute dagNetRoute = null;
DagNetRoute[] array = DagNetChooser.ProposeRoutes(targetName, out dagNetConfig);
if (networkName != null)
{
foreach (DagNetRoute dagNetRoute2 in array)
{
if (StringUtil.IsEqualIgnoreCase(dagNetRoute2.NetworkName, networkName))
{
dagNetRoute = dagNetRoute2;
break;
}
}
}
else if (array != null && array.Length > 0)
{
dagNetRoute = array[0];
}
if (dagNetRoute != null)
{
networkPath = new NetworkPath(targetName, dagNetRoute.TargetIPAddr, dagNetRoute.TargetPort, dagNetRoute.SourceIPAddr);
networkPath.NetworkName = dagNetRoute.NetworkName;
networkPath.CrossSubnet = dagNetRoute.IsCrossSubnet;
}
}
if (networkPath == null)
{
networkPath = NetworkManager.BuildDnsNetworkPath(targetName, NetworkManager.GetReplicationPort());
}
networkPath.Purpose = purpose;
if (dagNetConfig == null)
{
dagNetConfig = DagNetEnvironment.FetchNetConfig();
}
networkPath.ApplyNetworkPolicy(dagNetConfig);
return networkPath;
}
public TcpClientChannel OpenChannel(string targetServerName, ISimpleBufferPool socketStreamBufferPool, IPool <SocketStreamAsyncArgs> socketStreamAsyncArgPool, SocketStream.ISocketStreamPerfCounters perfCtrs, out NetworkPath netPath)
{
DagNetConfig dagConfig;
DagNetRoute[] array = DagNetChooser.ProposeRoutes(targetServerName, out dagConfig);
TcpClientChannel tcpClientChannel = null;
netPath = null;
NetworkTransportException ex = null;
if (array != null)
{
foreach (DagNetRoute dagNetRoute in array)
{
netPath = new NetworkPath(targetServerName, dagNetRoute.TargetIPAddr, dagNetRoute.TargetPort, dagNetRoute.SourceIPAddr);
netPath.CrossSubnet = dagNetRoute.IsCrossSubnet;
this.ApplySocketStreamArgs(netPath, socketStreamBufferPool, socketStreamAsyncArgPool, perfCtrs);
netPath.ApplyNetworkPolicy(dagConfig);
tcpClientChannel = this.TryConnect(netPath, out ex);
if (tcpClientChannel != null)
{
break;
}
}
}
if (tcpClientChannel == null)
{
netPath = this.BuildDnsNetworkPath(targetServerName, (int)NetworkManager.GetReplicationPort());
this.ApplySocketStreamArgs(netPath, socketStreamBufferPool, socketStreamAsyncArgPool, perfCtrs);
netPath.ApplyNetworkPolicy(dagConfig);
tcpClientChannel = this.TryConnect(netPath, out ex);
if (tcpClientChannel == null)
{
throw ex;
}
}
return(tcpClientChannel);
}