internal void Shutdown()
{
allChannels.Close().AwaitUninterruptibly();
tcpServer.ReleaseExternalResources();
udpServer.ReleaseExternalResources();
}
public virtual void Close()
{
allChannels.Close().AwaitUninterruptibly();
bossGroup.ShutdownGracefully();
workerGroup.ShutdownGracefully();
}
