internal static TcpClientChannel OpenConnection(ref NetworkPath actualPath, int timeoutInMsec, bool ignoreNodeDown)
{
NetworkPath networkPath = actualPath;
NetworkTransportException ex = null;
ITcpConnector tcpConnector = Dependencies.TcpConnector;
TcpClientChannel tcpClientChannel = tcpConnector.TryConnect(networkPath, timeoutInMsec, out ex);
if (tcpClientChannel != null)
{
return tcpClientChannel;
}
if (!networkPath.NetworkChoiceIsMandatory)
{
NetworkManager.TraceError("Attempting alternate routes", new object[0]);
List<NetworkPath> list = null;
ExchangeNetworkMap map = NetworkManager.GetMap();
if (map != null)
{
list = map.EnumeratePaths(networkPath.TargetNodeName, ignoreNodeDown);
if (list != null)
{
NetworkPath networkPath2 = null;
foreach (NetworkPath networkPath3 in list)
{
if (string.Equals(networkPath3.NetworkName, networkPath.NetworkName, DatabaseAvailabilityGroupNetwork.NameComparison))
{
networkPath2 = networkPath3;
break;
}
}
if (networkPath2 != null)
{
list.Remove(networkPath2);
}
DagNetConfig dagConfig = DagNetEnvironment.FetchNetConfig();
foreach (NetworkPath networkPath4 in list)
{
networkPath4.Purpose = networkPath.Purpose;
networkPath4.ApplyNetworkPolicy(dagConfig);
tcpClientChannel = tcpConnector.TryConnect(networkPath, timeoutInMsec, out ex);
if (tcpClientChannel != null)
{
actualPath = networkPath4;
return tcpClientChannel;
}
}
}
}
}
throw ex;
}
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;
}
