public void RemovePrefix(HttpListenerPrefix prefix, HttpListener listener)
{
List <HttpListenerPrefix> current, future;
if (prefix.Host == "*")
{
do
{
current = _unhandled;
if (current == null)
{
break;
}
future = new List <HttpListenerPrefix> (current);
if (!removeSpecial(future, prefix))
{
break; // The prefix wasn't found.
}
}while (Interlocked.CompareExchange(ref _unhandled, future, current) != current);
leaveIfNoPrefix();
return;
}
if (prefix.Host == "+")
{
do
{
current = _all;
if (current == null)
{
break;
}
future = new List <HttpListenerPrefix> (current);
if (!removeSpecial(future, prefix))
{
break; // The prefix wasn't found.
}
}while (Interlocked.CompareExchange(ref _all, future, current) != current);
leaveIfNoPrefix();
return;
}
Dictionary <HttpListenerPrefix, HttpListener> prefs, prefs2;
do
{
prefs = _prefixes;
if (!prefs.ContainsKey(prefix))
{
break;
}
prefs2 = new Dictionary <HttpListenerPrefix, HttpListener> (prefs);
prefs2.Remove(prefix);
}while (Interlocked.CompareExchange(ref _prefixes, prefs2, prefs) != prefs);
leaveIfNoPrefix();
}
internal bool TrySearchHttpListener(Uri uri, out HttpListener listener)
{
listener = null;
if (uri == null)
{
return(false);
}
var host = uri.Host;
var dns = Uri.CheckHostName(host) == UriHostNameType.Dns;
var port = uri.Port.ToString();
var path = HttpUtility.UrlDecode(uri.AbsolutePath);
var pathSlash = path[path.Length - 1] != '/' ? path + "/" : path;
if (host != null && host.Length > 0)
{
var bestLen = -1;
foreach (var pref in _prefixes.Keys)
{
if (dns)
{
var prefHost = pref.Host;
if (Uri.CheckHostName(prefHost) == UriHostNameType.Dns && prefHost != host)
{
continue;
}
}
if (pref.Port != port)
{
continue;
}
var prefPath = pref.Path;
var len = prefPath.Length;
if (len < bestLen)
{
continue;
}
if (path.StartsWith(prefPath) || pathSlash.StartsWith(prefPath))
{
bestLen = len;
listener = _prefixes[pref];
}
}
if (bestLen != -1)
{
return(true);
}
}
var prefs = _unhandled;
listener = searchHttpListenerFromSpecial(path, prefs);
if (listener == null && pathSlash != path)
{
listener = searchHttpListenerFromSpecial(pathSlash, prefs);
}
if (listener != null)
{
return(true);
}
prefs = _all;
listener = searchHttpListenerFromSpecial(path, prefs);
if (listener == null && pathSlash != path)
{
listener = searchHttpListenerFromSpecial(pathSlash, prefs);
}
return(listener != null);
}
