public bool Remove(IServerSession session)
{
if (session == null)
{
return(false);
}
bool exist = false;
lock (_sessions)
{
var unicastAddress = session.UnicastAddress;
exist = _sessions.RemoveValue(unicastAddress, session);
if (exist)
{
LeaveAll(session);
}
}
if (exist)
{
session.Close();
ServerEvents.AsyncRaiseClientDisconnectedEvent(_server, session);
}
return(exist);
}
/// <summary>
/// 运行
/// </summary>
public async Task Run()
{
if (_running)
{
return;
}
_running = true;
_bossGroup = new MultithreadEventLoopGroup(1);
_workerGroup = new MultithreadEventLoopGroup();
X509Certificate2 tlsCertificate = null;
if (this.Config.IsSsl)
{
tlsCertificate = new X509Certificate2(Path.Combine(AppContext.ProcessDirectory, "anycast.pfx"), "password");
}
var bootstrap = new ServerBootstrap();
bootstrap
.Group(_bossGroup, _workerGroup)
.Channel <TcpServerSocketChannel>()
.Option(ChannelOption.SoBacklog, 1024)
.ChildOption <bool>(ChannelOption.SoKeepalive, true)
.Handler(new LoggingHandler("AS-LSTN"))
.ChildHandler(new ActionChannelInitializer <IChannel>(channel =>
{
channel.Configuration.Allocator = UnpooledByteBufferAllocator.Default; //由于PooledByteBuffer有内存不释放，所以我们使用 非池的字节缓冲区
IChannelPipeline pipeline = channel.Pipeline;
if (tlsCertificate != null)
{
pipeline.AddLast("tls", TlsHandler.Server(tlsCertificate));
}
pipeline.AddLast("framing-enc", new MessageEncoder());
pipeline.AddLast("framing-dec", new MessageDecoder());
pipeline.AddLast("ReadTimeout", new ReadTimeoutHandler(Settings.Timeout)); //超过指定时间没有接收到客户端任何信息，自动关闭对应的客户端通道
pipeline.AddLast("LoginAuthResp", new LoginAuthRespHandler(this));
pipeline.AddLast("HeartBeatResp", new HeartBeatRespHandler(this));
pipeline.AddLast("ServerLogic", new ServerLogicHandler(this));
}));
try
{
_boundChannel = await bootstrap.BindAsync(this.Config.Port);
ServerEvents.AsyncRaiseRunning(this, this);
}
catch (Exception ex)
{
_running = false;
ServerEvents.AsyncRaiseError(this, new RunServerException(ex));
}
}
public void Add(IServerSession session)
{
lock (_sessions)
{
var unicastAddress = session.UnicastAddress;
_sessions.Add(unicastAddress, session);
}
ServerEvents.AsyncRaiseClientConnected(_server, session);
}
protected void SafeProcess(Action action, IChannelHandlerContext context)
{
try
{
action();
}
catch (Exception ex)
{
Offline(context);
ServerEvents.AsyncRaiseError(this.Server, ex);
}
}
public override void ExceptionCaught(IChannelHandlerContext context, Exception exception)
{
SafeProcess(() =>
{
Offline(context);
if (Util.OfflineHandle(context, exception))
{
return;
}
ServerEvents.AsyncRaiseError(this.Server, exception);
context.FireExceptionCaught(exception);
}, context);
}
public override void ChannelRead(IChannelHandlerContext context, object message)
{
SafeProcess(() =>
{
var msg = (Message)message;
if (msg.Type == MessageType.HeartBeatRequest)
{
//响应心跳请求
context.WriteAndFlushAsync(_heartBeatMsg);
ServerEvents.AsyncRaiseHeartBeatReceived(this.Server, this.Sessions.GetSession(context.Channel));
}
else
{
context.FireChannelRead(msg);
}
}, context);
}
