static void OnCompleted(object sender, SimpleResolverEventArgs e)
{
DnsAsyncResult ares = (DnsAsyncResult)e.UserToken;
IPHostEntry entry = e.HostEntry;
if (entry == null || e.ResolverError != 0)
{
ares.SetCompleted(false, new Exception("Error: " + e.ResolverError));
return;
}
ares.SetCompleted(false, entry);
}
static IAsyncResult BeginAsyncCallAddresses(string host, AsyncCallback callback, object state)
{
SimpleResolverEventArgs e = new SimpleResolverEventArgs();
e.Completed += OnCompleted;
e.HostName = host;
DnsAsyncResult ares = new DnsAsyncResult(callback, state);
e.UserToken = ares;
if (resolver.GetHostAddressesAsync(e) == false)
{
ares.SetCompleted(true, e.HostEntry); // Completed synchronously
}
return(ares);
}
static IAsyncResult BeginAsyncCall (string host, AsyncCallback callback, object state)
{
SimpleResolverEventArgs e = new SimpleResolverEventArgs ();
e.Completed += OnCompleted;
e.HostName = host;
DnsAsyncResult ares = new DnsAsyncResult (callback, state);
e.UserToken = ares;
if (resolver.GetHostEntryAsync (e) == false)
ares.SetCompleted (true, e.HostEntry); // Completed synchronously
return ares;
}