public async Task RunServerAsync(TcpServerParams args)
{
IEventLoopGroup bossGroup;
IEventLoopGroup workerGroup;
bossGroup = new MultithreadEventLoopGroup(1);
workerGroup = new MultithreadEventLoopGroup();
try
{
var bootstrap = new ServerBootstrap();
bootstrap
.Group(bossGroup, workerGroup)
.Channel <TcpServerSocketChannel>()
.Option(ChannelOption.SoBacklog, args.Backlog) //设置网络IO参数等
.Option(ChannelOption.SoKeepalive, true) //保持连接
.Handler(new LoggingHandler("SRV-LSTN")) //在主线程组上设置一个打印日志的处理器
.ChildHandler(new ActionChannelInitializer <IChannel>(channel =>
{
//工作线程连接器 是设置了一个管道，服务端主线程所有接收到的信息都会通过这个管道一层层往下传输
//同时所有出栈的消息 也要这个管道的所有处理器进行一步步处理
IChannelPipeline pipeline = channel.Pipeline;
//IdleStateHandler 心跳
pipeline.AddLast(new IdleStateHandler(150, 0, 0)); //第一个参数为读，第二个为写，第三个为读写全部
//出栈消息，通过这个handler 在消息顶部加上消息的长度
pipeline.AddLast("framing-enc", new LengthFieldPrepender(2));
//入栈消息通过该Handler,解析消息的包长信息，并将正确的消息体发送给下一个处理Handler
pipeline.AddLast("framing-dec", new LengthFieldBasedFrameDecoder(ushort.MaxValue, 0, 2, 0, 2));
pipeline.AddLast("NettyServer", new ServerHandler());
}));
IChannel boundChannel = await bootstrap.BindAsync(args.ServerPort);
//运行至此处，服务启动成功
IsServerRunning = true;
ClosingArrivedEvent.Reset();
ClosingArrivedEvent.WaitOne();
await boundChannel.CloseAsync();
}
finally
{
await Task.WhenAll(
bossGroup.ShutdownGracefullyAsync(TimeSpan.FromMilliseconds(100), TimeSpan.FromSeconds(1)),
workerGroup.ShutdownGracefullyAsync(TimeSpan.FromMilliseconds(100), TimeSpan.FromSeconds(1)));
}
}
private void ThreadPoolCallback(object state)
{
TcpServerParams Args = state as TcpServerParams;
RunServerAsync(Args).Wait();
}