private async ValueTask StartTcpListen()
{
using (await _asyncLock.LockAsync())
{
var listenAddressSet = new HashSet <OmniAddress>(_tcpAcceptOptions.ListenAddresses.ToArray());
var useUpnp = _tcpAcceptOptions.UseUpnp;
UpnpClient?upnpClient = null;
try
{
// TcpListenerの追加処理
foreach (var listenAddress in listenAddressSet)
{
if (!TryGetEndpoint(listenAddress, out var ipAddress, out ushort port, false))
{
continue;
}
var tcpListener = new TcpListener(ipAddress, port);
tcpListener.Start(3);
_tcpListeners.Add(tcpListener);
if (useUpnp)
{
// "0.0.0.0"以外はUPnPでのポート開放対象外
if (ipAddress == IPAddress.Any)
{
if (upnpClient == null)
{
upnpClient = new UpnpClient();
await upnpClient.ConnectAsync();
}
await upnpClient.OpenPortAsync(UpnpProtocolType.Tcp, port, port, "Xeus");
}
}
}
}
catch (Exception e)
{
_logger.Error(e);
throw e;
}
finally
{
if (upnpClient != null)
{
upnpClient.Dispose();
}
}
}
}
private async ValueTask StopTcpListen()
{
using (await _asyncLock.LockAsync())
{
var useUpnp = _tcpAcceptOptions.UseUpnp;
UpnpClient?upnpClient = null;
try
{
foreach (var tcpListener in _tcpListeners)
{
var ipEndpoint = (IPEndPoint)tcpListener.LocalEndpoint;
tcpListener.Stop();
if (useUpnp)
{
// "0.0.0.0"以外はUPnPでのポート開放対象外
if (ipEndpoint.Address == IPAddress.Any)
{
if (upnpClient == null)
{
upnpClient = new UpnpClient();
await upnpClient.ConnectAsync();
}
await upnpClient.ClosePortAsync(UpnpProtocolType.Tcp, ipEndpoint.Port);
}
}
}
_tcpListeners.Clear();
}
catch (Exception e)
{
_logger.Error(e);
throw e;
}
finally
{
if (upnpClient != null)
{
upnpClient.Dispose();
}
}
}
}