public void GetAddresses(Region region, IpFilter filter, int maxResults, MasterIpCallback callback)
{
try
{
using (var client = new XWebClient())
{
var text = client.DownloadString(this.url);
if (text == null)
{
callback(null, null, false);
return;
}
var lines = text.Split('\n');
var endpoints = new List <Tuple <IPEndPoint, ServerInfo> >(lines.Length);
int i = 0;
foreach (var line in lines)
{
if (string.IsNullOrWhiteSpace(line))
{
continue;
}
var parts = line.Split(':');
if (parts.Length != 2)
{
continue;
}
IPAddress addr;
int port;
if (IPAddress.TryParse(parts[0], out addr) && int.TryParse(parts[1].TrimEnd(), out port))
{
endpoints.Add(new Tuple <IPEndPoint, ServerInfo>(new IPEndPoint(addr, port), null));
if (++i == maxResults)
{
break;
}
}
}
callback(new ReadOnlyCollection <Tuple <IPEndPoint, ServerInfo> >(endpoints), null, false);
}
}
catch (Exception ex)
{
callback(null, ex, false);
}
}
private void ProcessLoop()
{
using (var client = new XWebClient(5000))
{
while (true)
{
var ip = this.queue.Take();
if (ip == null)
{
break;
}
bool err = true;
var ipInt = Ip4Utils.ToInt(ip);
try
{
var url = string.Format(this.ServiceUrlFormat, ip);
var result = client.DownloadString(url);
if (result != null)
{
object o;
Action <GeoInfo> callbacks;
lock (cache)
callbacks = cache.TryGetValue(ipInt, out o) ? o as Action <GeoInfo> : null;
var geoInfo = this.HandleResult(ipInt, result);
if (callbacks != null && geoInfo != null)
{
ThreadPool.QueueUserWorkItem(ctx => callbacks(geoInfo));
}
err = false;
}
}
catch
{
// ignore
}
if (err)
{
lock (this.cache)
this.cache.Remove(ipInt);
}
}
}
}