/// <summary>
/// Resolve address
/// </summary>
static async Task <IEnumerable <DnsHostEntry> > ResolveAddressAsync(ProxySocketAddress addr,
int period, bool cache)
{
Console.WriteLine($"Resolving {addr} for {period} ms...");
var entries = new HashSet <DnsHostEntry>();
var cts = new CancellationTokenSource(period);
try {
using (var resolver = await Dns.ResolveAsync(addr, cache, cts.Token)) {
cts.Token.ThrowIfCancellationRequested();
while (await resolver.MoveNextAsync(cts.Token))
{
cts.Token.ThrowIfCancellationRequested();
Console.WriteLine($"{DateTime.Now}: {resolver.Current}");
entries.Add(resolver.Current);
}
}
}
catch (OperationCanceledException) { }
return(entries);
}
