private void ServerTask()
{
using (ZmqContext context = ZmqContext.Create())
{
using (ZmqSocket socket = context.CreateSocket(SocketType.ROUTER))
{
socket.Identity = _localVIP.ToBytes();
socket.SendHighWatermark = 100000;
socket.Bind(_routerHost);
socket.ReceiveReady += ReceiveReady;
//建立本地路由和相邻远端路由连接的dealer
foreach (KeyValuePair <ushort, string> address in _remoteAddress)
{
//第一个构造函数参数:本地的RouterID左移8位加上远端的RouterID作为dealer的Identity 唯一标识
//第二个构造函数参数是远端的地址,第三个参数是通讯上下文
RouterDealer dealer = new RouterDealer((ushort)((_localVIP.Router << 8) + address.Key), address.Value, context);
dealer.Start();
_dealers.Add(address.Key, dealer);
}
//接受数据，如果当前没有数据到达，线程一直阻塞
_poller = new Poller(new List <ZmqSocket> {
socket
});
while (_isRuning)
{
_poller.Poll();
}
//收到停止命令后（外界调用Stop() _isRuning变为false），释放资源
RouterDealer[] routerDealer = _dealers.Values.ToArray <RouterDealer>();
for (int i = routerDealer.Length - 1; i >= 0; i--)
{
routerDealer[i].Dispose();
}
_dealers.Clear();
}
}
}
/// <summary>
/// 根据消息的目的地址，对消息进行转发
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ReceiveReady(object sender, SocketEventArgs e)
{
ZmqSocket socket = e.Socket;
ZmqMessage zmqMessage = socket.ReceiveMessage();
//不符合要求的包直接丢掉
if (zmqMessage.FrameCount != 7)
{
return;
}
VirtuaIP destVIP = new VirtuaIP(zmqMessage[2].Buffer);
#region 统计收到的数据包数量，转发速度p/s(每秒多少个包)，并通知主线程更新界面
//byte[] data = zmqMessage[6].Buffer;
//byte flage = data[0];
//switch (flage)
//{
// case 0: count++; count = 1; break;
// case 1: count++; break;
// case 2: count++; ; break;
//}
//if (DataAnalysis != null)
// DataAnalysis("in", count);
#endregion
#region 转发数据
if (destVIP.Router == _localVIP.Router)
{
if (destVIP.Node == _localVIP.Node)
{
//Router自己处理
Console.WriteLine("我的消息：{0}", Encoding.Unicode.GetString(zmqMessage[5].Buffer));
}
else
{
/*
* 接收数据--共六帧数据
* 0、目的地址
* 1、空帧
* 2、目的地址
* 3、源地址
* 4、目的端口
* 5、源端口
* 6、数据
* */
socket.SendMore(zmqMessage[2].Buffer);
socket.SendMore(zmqMessage[1].Buffer);
socket.SendMore(zmqMessage[2].Buffer);
socket.SendMore(zmqMessage[3].Buffer);
socket.SendMore(zmqMessage[4].Buffer);
socket.SendMore(zmqMessage[5].Buffer);
socket.Send(zmqMessage[6].Buffer);
//如果推断不错的话,这里应该是发往本机的应用程序服务器端
}
}
else
{
/*
* 转发到Router--共七帧数据
* 0、新的下一跳Router地址
* 1、空帧
* 2、目的地址
* 3、源地址
* 4、目的端口
* 5、源端口
* 6、数据
* */
//转发的下一个Router
//得到下一跳地址
ushort nodeID = destVIP.Router;
//TODO 此处可能得不到下一跳节点，因为目的节点不可到达,异常捕获比一般的判断速度慢10倍
ushort nextRouterID = _nextTripRouterDic[nodeID];
//得到连接到下一跳router的dealer
RouterDealer dealer = _dealers[nextRouterID];
//dealer.Socket.SendMore(nextRouterVIP.ToBytes());//下一跳地址
dealer.Socket.SendMore(zmqMessage[1].Buffer);
dealer.Socket.SendMore(zmqMessage[2].Buffer);
dealer.Socket.SendMore(zmqMessage[3].Buffer);
dealer.Socket.SendMore(zmqMessage[4].Buffer);
dealer.Socket.SendMore(zmqMessage[5].Buffer);
dealer.Socket.Send(zmqMessage[6].Buffer);
//if (DataAnalysis != null)
// DataAnalysis("out", count);
}
#endregion 转发数据
}
