internal ResolveEntry(string host, int port, EndpointSelectionType selType, IPEndpoint endpoint, IEndpointConnectors callback)
{
Host = host;
Port = port;
SelType = selType;
Endpoint = endpoint;
Callback = callback;
}
public void Resolve(string host, int port, EndpointSelectionType selType, IPEndpoint endpoint,
IEndpointConnectors callback)
{
//
// Try to get the addresses without DNS lookup. If this doesn't work, we queue a resolve
// entry and the thread will take care of getting the endpoint addresses.
//
INetworkProxy?networkProxy = NetworkProxy;
if (networkProxy == null)
{
try
{
List <EndPoint> addrs = Network.GetAddresses(host, port, IPVersion, selType, PreferIPv6, false);
if (addrs.Count > 0)
{
callback.Connectors(endpoint.Connectors(addrs, null));
return;
}
}
catch (LocalException ex)
{
callback.Exception(ex);
return;
}
}
lock (_endpointHostResolverThread)
{
Debug.Assert(!_endpointHostResolverDestroyed);
var entry = new ResolveEntry(host, port, selType, endpoint, callback);
Instrumentation.ICommunicatorObserver?obsv = Observer;
if (obsv != null)
{
entry.Observer = obsv.GetEndpointLookupObserver(endpoint);
if (entry.Observer != null)
{
entry.Observer.Attach();
}
}
_enpointHostResolverQueue.AddLast(entry);
Monitor.Pulse(_endpointHostResolverThread);
}
}