711 lines
26 KiB
C#
711 lines
26 KiB
C#
//using HunterProtobufCore;
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using System;
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using System.Buffers;
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using System.Collections.Generic;
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using System.IO;
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using System.Net;
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using System.Net.Sockets;
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using System.Threading;
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using static HaoYueNet.ClientNetwork.BaseData;
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namespace HaoYueNet.ClientNetwork.IOCPMode
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{
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public class TcpSaeaClient
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{
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#region 定义属性
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protected int MaxRevIndexNum = 50;//响应倒计时计数最大值
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protected int MaxSendIndexNum = 3;//发送倒计时计数最大值
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protected static int TimerInterval = 3000;//计时器间隔
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protected System.Timers.Timer _heartTimer;//心跳包计数器
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public int m_maxConnectNum; //最大连接数
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public int m_revBufferSize; //最大接收字节数
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protected BufferManager m_bufferManager;
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protected const int opsToAlloc = 2;
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protected SocketEventPool m_Receivepool;
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protected SocketEventPool m_Sendpool;
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protected TokenMsgPool msg_pool;
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protected int m_clientCount; //连接的客户端数量
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protected Semaphore m_maxNumberAcceptedClients;//信号量
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protected Dictionary<Socket, AsyncUserToken> _DictSocketAsyncUserToken = new Dictionary<Socket, AsyncUserToken>();
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List<AsyncUserToken> m_clients; //客户端列表
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public List<AsyncUserToken> ClientList { private set { m_clients = value; } get { return m_clients; } } //获取客户端列表
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#endregion
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#region 定义委托
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/// <summary>
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/// 客户端连接数量变化时触发
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/// </summary>
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/// <param name="num">当前增加客户的个数(用户退出时为负数,增加时为正数,一般为1)</param>
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/// <param name="token">增加用户的信息</param>
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public delegate void OnClientNumberChangeHandler(int num, AsyncUserToken token);
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/// <summary>
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/// 接收到客户端的数据
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/// </summary>
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/// <param name="token">客户端</param>
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/// <param name="buff">客户端数据</param>
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public delegate void OnReceiveDataHandler(AsyncUserToken sk, int CMDID, int ErrID, byte[] data);
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/// <summary>
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/// 断开连接
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/// </summary>
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/// <param name="sk"></param>
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public delegate void OnDisconnectHandler(AsyncUserToken sk);
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/// <summary>
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/// 日志
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/// </summary>
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/// <param name="sk"></param>
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public delegate void OnNetLogHandler(string msg);
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#endregion
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#region 定义事件
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/// <summary>
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/// 客户端连接数量变化事件
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/// </summary>
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public event OnClientNumberChangeHandler OnClientNumberChange;
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/// <summary>
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/// 接收到客户端的数据事件
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/// </summary>
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public event OnReceiveDataHandler OnReceive;
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/// <summary>
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/// 接收到客户端的断开连接
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/// </summary>
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public event OnDisconnectHandler OnDisconnected;
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/// <summary>
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/// 网络库内部输出
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/// </summary>
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public event OnNetLogHandler OnNetLog;
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#endregion
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/// <summary>
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/// 构造函数
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/// </summary>
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/// <param name="numConnections">最大连接数</param>
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/// <param name="receiveBufferSize">缓存区大小</param>
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public TcpSaeaClient(int numConnections, int receiveBufferSize)
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{
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m_clientCount = 0;
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m_maxConnectNum = numConnections;
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m_revBufferSize = receiveBufferSize;
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// allocate buffers such that the maximum number of sockets can have one outstanding read and
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//write posted to the socket simultaneously
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m_bufferManager = new BufferManager(receiveBufferSize * numConnections * opsToAlloc, receiveBufferSize);
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m_Receivepool = new SocketEventPool(numConnections);
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m_Sendpool = new SocketEventPool(numConnections);
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msg_pool = new TokenMsgPool(numConnections);
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m_maxNumberAcceptedClients = new Semaphore(numConnections, numConnections);
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}
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#region Client操作
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/// <summary>
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/// 初始化
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/// </summary>
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public void Init()
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{
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// Allocates one large byte buffer which all I/O operations use a piece of. This gaurds
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// against memory fragmentation
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m_bufferManager.InitBuffer();
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m_clients = new List<AsyncUserToken>();
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// preallocate pool of SocketAsyncEventArgs objects
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SocketAsyncEventArgs readWriteEventArg;
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for (int i = 0; i < m_maxConnectNum; i++)
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{
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readWriteEventArg = new SocketAsyncEventArgs();
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readWriteEventArg.Completed += new EventHandler<SocketAsyncEventArgs>(IO_Completed);
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readWriteEventArg.UserToken = new AsyncUserToken();
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// assign a byte buffer from the buffer pool to the SocketAsyncEventArg object
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m_bufferManager.SetBuffer(readWriteEventArg);
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// add SocketAsyncEventArg to the pool
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m_Receivepool.Push(readWriteEventArg);
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}
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for (int i = 0; i < m_maxConnectNum; i++)
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{
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readWriteEventArg = new SocketAsyncEventArgs();
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readWriteEventArg.Completed += new EventHandler<SocketAsyncEventArgs>(IO_Completed);
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readWriteEventArg.UserToken = new AsyncUserToken();
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//发送是否需要如此设置 TODO
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m_bufferManager.SetBuffer(readWriteEventArg);
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m_Sendpool.Push(readWriteEventArg);
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}
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OutNetLog("初始化完毕");
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}
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/// <summary>
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/// 启动服务
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/// </summary>
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/// <param name="localEndPoint"></param>
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/// <param name="bReuseAddress">是否端口重用</param>
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/// <returns></returns>
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public bool Start()
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{
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try
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{
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ClearUserToken();
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_heartTimer = new System.Timers.Timer();
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_heartTimer.Interval = TimerInterval;
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_heartTimer.Elapsed += CheckUpdatetimer_Elapsed;
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_heartTimer.AutoReset = true;
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_heartTimer.Enabled = true;
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OutNetLog("开启定时心跳包");
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return true;
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}
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catch (Exception)
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{
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return false;
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}
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}
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/// <summary>
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/// 停止服务
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/// </summary>
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public void Stop()
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{
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foreach (AsyncUserToken token in m_clients)
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{
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try
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{
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token.Socket.Shutdown(SocketShutdown.Both);
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}
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catch (Exception) { }
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}
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try
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{
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for (int i = 0; i < m_clients.Count; i++)
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{
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m_clients[i].Socket.Shutdown(SocketShutdown.Both);
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}
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//listenSocket.Shutdown(SocketShutdown.Both);
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for (int i = 0; i < m_clients.Count; i++)
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{
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m_clients[i].Socket.Close();
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}
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}
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catch (Exception) { }
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//listenSocket.Close();
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int c_count = m_clients.Count;
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ClearUserToken();
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if (OnClientNumberChange != null)
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OnClientNumberChange(-c_count, null);
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}
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public void CloseClient(AsyncUserToken token)
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{
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try { token.Socket.Shutdown(SocketShutdown.Both); }
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catch (Exception) { }
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}
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/// <summary>
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/// 关闭客户端连接
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/// </summary>
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/// <param name="e"></param>
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void CloseClientSocket(SocketAsyncEventArgs e)
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{
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AsyncUserToken token = e.UserToken as AsyncUserToken;
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CloseReady(token);
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// 释放SocketAsyncEventArg，以便其他客户端可以重用它们
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ReleaseSocketAsyncEventArgs(e);
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}
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void CloseReady(AsyncUserToken token)
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{
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OnDisconnected?.Invoke(token);
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RemoveUserToken(token);
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//如果有事件,则调用事件,发送客户端数量变化通知
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OnClientNumberChange?.Invoke(-1, token);
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// 关闭与客户端关联的套接字
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try { token.Socket.Shutdown(SocketShutdown.Send); } catch (Exception) { }
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token.Socket.Close();
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// 递减计数器以跟踪连接到服务器的客户端总数
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Interlocked.Decrement(ref m_clientCount);
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m_maxNumberAcceptedClients.Release();
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}
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#endregion
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#region Token管理
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public AsyncUserToken GetAsyncUserTokenForSocket(Socket sk)
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{
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AsyncUserToken result;
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if (_DictSocketAsyncUserToken.TryGetValue(sk, out result))
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return result;
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return null;
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//return _DictSocketAsyncUserToken.ContainsKey(sk) ? _DictSocketAsyncUserToken[sk] : null;
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}
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void AddUserToken(AsyncUserToken userToken)
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{
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lock (_DictSocketAsyncUserToken)
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{
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m_clients.Add(userToken);
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_DictSocketAsyncUserToken.Add(userToken.Socket, userToken);
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}
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}
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void RemoveUserToken(AsyncUserToken userToken)
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{
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lock (_DictSocketAsyncUserToken)
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{
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m_clients.Remove(userToken);
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_DictSocketAsyncUserToken.Remove(userToken.Socket);
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}
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}
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void ClearUserToken()
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{
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lock (_DictSocketAsyncUserToken)
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{
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m_clients.Clear();
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_DictSocketAsyncUserToken.Clear();
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}
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}
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/// <summary>
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/// 回收SocketAsyncEventArgs
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/// </summary>
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/// <param name="saea"></param>
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/// <exception cref="ArgumentException"></exception>
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void ReleaseSocketAsyncEventArgs(SocketAsyncEventArgs saea)
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{
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//saea.UserToken = null;//TODO
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//saea.SetBuffer(null, 0, 0);
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//saea.Dispose();
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//↑ 这里不要自作主张去清东西，否则回收回去不可用
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switch (saea.LastOperation)
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{
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case SocketAsyncOperation.Receive:
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m_Receivepool.Push(saea);
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break;
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case SocketAsyncOperation.Send:
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m_Sendpool.Push(saea);
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break;
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default:
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throw new ArgumentException("ReleaseSocketAsyncEventArgs > The last operation completed on the socket was not a receive or send");
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}
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}
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#endregion
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#region 连接
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public void StartConnect(string ip, int port, Socket socket, SocketAsyncEventArgs connectEventArg = null)
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{
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if (connectEventArg == null)
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{
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connectEventArg = new SocketAsyncEventArgs();
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connectEventArg.Completed += new EventHandler<SocketAsyncEventArgs>(IO_Completed);
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}
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else
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{
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// socket must be cleared since the context object is being reused
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connectEventArg.AcceptSocket = null;
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//TODO ??
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//这里其实AcceptSocket是服务端用的，非监听的客户端用，本来就为空，清不清理没什么卵用，但是connectEventArg.ConnectSocket是只读的的
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}
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connectEventArg.RemoteEndPoint = new DnsEndPoint(ip, port);
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m_maxNumberAcceptedClients.WaitOne();
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if (!socket.ConnectAsync(connectEventArg))
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{
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ProcessConnect(connectEventArg);
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}
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}
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private void ProcessConnect(SocketAsyncEventArgs e)
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{
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try
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{
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Interlocked.Increment(ref m_clientCount);
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//确保监听结束时，有连接才抛给数据接收
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if (e.ConnectSocket.RemoteEndPoint != null)
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{
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// Get the socket for the accepted client connection and put it into the
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//ReadEventArg object user token
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SocketAsyncEventArgs readEventArgs = m_Receivepool.Pop();
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//TODO readEventArgs.UserToken这里的 UserToken 有可能是空
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AsyncUserToken userToken;
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if (readEventArgs.UserToken == null)
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readEventArgs.UserToken = new AsyncUserToken();
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userToken = (AsyncUserToken)readEventArgs.UserToken;
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userToken.Socket = e.ConnectSocket;
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userToken.ConnectTime = DateTime.Now;
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userToken.Remote = e.ConnectSocket.RemoteEndPoint;
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userToken.IPAddress = ((IPEndPoint)e.ConnectSocket.RemoteEndPoint).Address;
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userToken.RevIndex = MaxRevIndexNum;
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userToken.SendIndex = MaxSendIndexNum;
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AddUserToken(userToken);
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OnClientNumberChange?.Invoke(1, userToken);
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if (!e.ConnectSocket.ReceiveAsync(readEventArgs))
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{
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ProcessReceive(readEventArgs);
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}
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}
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}
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catch (Exception me)
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{
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//RuncomLib.Log.LogUtils.Info(me.Message + "\r\n" + me.StackTrace);
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}
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// Accept the next connection request
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if (e.SocketError == SocketError.OperationAborted) return;
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//StartAccept(e);
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}
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#endregion
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#region 收发IOCP循环
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/// <summary>当异步接收操作完成时，会调用此方法。
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/// 如果远程主机关闭了连接，则套接字关闭。
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/// 如果接收到数据，则将数据回显到客户端。
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/// </summary>
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/// <param name="e"></param>
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private void ProcessReceive(SocketAsyncEventArgs e)
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{
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try
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{
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AsyncUserToken token = (AsyncUserToken)e.UserToken;
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if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success)
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{
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lock (token.memoryStream)
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{
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token.memoryStream.Write(e.Buffer, e.Offset, e.BytesTransferred);
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do
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{
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if (token.memoryStream.Length < 4) break;//包头不完整，继续接收
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long FristBeginPos = token.memoryStream.Position;
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//从Byte池申请
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byte[] lenBytes = ArrayPool<byte>.Shared.Rent(4);
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token.memoryStream.Seek(0, SeekOrigin.Begin);
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token.memoryStream.Read(lenBytes, 0, 4);
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int packageLen = BitConverter.ToInt32(lenBytes, 0) - 4;
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//归还byte[]
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ArrayPool<byte>.Shared.Return(lenBytes);
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if (packageLen > token.memoryStream.Length - 4)
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{
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token.memoryStream.Seek(FristBeginPos, SeekOrigin.Begin);
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break;//长度不够时,退出循环,让程序继续接收
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}
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//申请byte池 一定要记得回收!!
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byte[] rev_fromArrayPool = ArrayPool<byte>.Shared.Rent(packageLen);
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token.memoryStream.Seek(4, SeekOrigin.Begin);
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token.memoryStream.Read(rev_fromArrayPool, 0, packageLen);
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token.memoryStream.Seek(FristBeginPos, SeekOrigin.Begin);
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//从数据池中移除这组数据
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lock (token.memoryStream)
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{
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int numberOfBytesToRemove = packageLen + 4;
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byte[] buf = token.memoryStream.GetBuffer();
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Buffer.BlockCopy(buf, numberOfBytesToRemove, buf, 0, (int)token.memoryStream.Length - numberOfBytesToRemove);
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token.memoryStream.SetLength(token.memoryStream.Length - numberOfBytesToRemove);
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}
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//用Span内存切片，因为来自ArrayPool的byte长度，可能大于本身申请的长度
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Span<byte> rev_span = rev_fromArrayPool;
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rev_span = rev_span.Slice(0, packageLen);
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DataCallBackReady(token, rev_span);
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//回收（这里依赖DataCallBackReady中，有一次数据拷贝，这个后续还要进一步精进性能优化，否则不能在这里回收，否则影响业务层）
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ArrayPool<byte>.Shared.Return(rev_fromArrayPool);
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} while (token.memoryStream.Length > 4);
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}
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//如果返回为False则代表此刻已经完成，不必等待完成端口回调，则直接调用ProcessReceive
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if (!token.Socket.ReceiveAsync(e))
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this.ProcessReceive(e);
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}
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else
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{
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//清理数据
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token.memoryStream.SetLength(0);
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token.memoryStream.Seek(0, SeekOrigin.Begin);
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CloseClientSocket(e);
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}
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}
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catch (Exception xe)
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{
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//RuncomLib.Log.LogUtils.Info(xe.Message + "\r\n" + xe.StackTrace);
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}
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}
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private void ProcessSend(SocketAsyncEventArgs e)
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{
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if (e.SocketError == SocketError.Success)
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{
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//TODO
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}
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else
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{
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CloseClientSocket(e);
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return;
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}
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ReleaseSocketAsyncEventArgs(e);
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SendForMsgPool();
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}
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void IO_Completed(object sender, SocketAsyncEventArgs e)
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{
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// determine which type of operation just completed and call the associated handler
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switch (e.LastOperation)
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{
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case SocketAsyncOperation.Connect:
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ProcessConnect(e);
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break;
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case SocketAsyncOperation.Receive:
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ProcessReceive(e);
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break;
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case SocketAsyncOperation.Send:
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ProcessSend(e);
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break;
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default:
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throw new ArgumentException("The last operation completed on the socket was not a receive or send");
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}
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}
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#endregion
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#region 发送
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int sendrun = 0;
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/// <summary>
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/// 对外暴露的发送消息
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/// </summary>
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/// <param name="CMDID"></param>
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/// <param name="data">序列化之后的数据</param>
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public void SendToSocket(Socket sk, int CMDID, byte[] data)
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{
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AsyncUserToken token = GetAsyncUserTokenForSocket(sk);
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SendWithIndex(token, (ushort)CMDID, data);
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}
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void SendForMsgPool()
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{
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//if (flag_SendForMsgPool) return;
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try
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{
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if (sendrun < msg_pool.Count || msg_pool.Count < 1)
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return;
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sendrun++;
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while (msg_pool.Count > 0)
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{
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try
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{
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TokenWithMsg msg = msg_pool.Dequeue();
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//OutNetLog("从信息池取出发送");
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//是心跳包
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if (msg.bHeartbeat)
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{
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SendHeartbeatMessage(msg.token);
|
||
}
|
||
else
|
||
{
|
||
SendMessage(msg.token, msg.CMDID, msg.data);
|
||
}
|
||
msg = null;
|
||
}
|
||
catch
|
||
{
|
||
OutNetLog("==============================================>");
|
||
}
|
||
}
|
||
sendrun--;
|
||
OutNetLog("!!!!!!!!!!!!!!!!!!!!!!!!!!");
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
OutNetLog(ex.ToString());
|
||
}
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 发送心跳包
|
||
/// </summary>
|
||
/// <param name="token"></param>
|
||
void SendHeartbeatMessage(AsyncUserToken token)
|
||
{
|
||
if (token == null || token.Socket == null || !token.Socket.Connected)
|
||
return;
|
||
try
|
||
{
|
||
if (m_Sendpool.Count > 0)
|
||
{
|
||
SocketAsyncEventArgs myreadEventArgs = m_Sendpool.Pop();
|
||
myreadEventArgs.UserToken = token;
|
||
//TODO ????客户端用这里是否应该直接就不设置
|
||
//myreadEventArgs.AcceptSocket = token.Socket;
|
||
|
||
//直接写入SocketAsyncEventArgs的Buff
|
||
HunterNet_Heartbeat.SetDataToSocketAsyncEventArgs(myreadEventArgs);
|
||
|
||
//若不需要等待
|
||
if (!token.Socket.SendAsync(myreadEventArgs))
|
||
{
|
||
m_Sendpool.Push(myreadEventArgs);
|
||
}
|
||
return;
|
||
}
|
||
else
|
||
{
|
||
//先压入队列，等待m_Sendpool回收
|
||
msg_pool.Enqueue(new TokenWithMsg() { token = token, bHeartbeat = true });
|
||
//OutNetLog("！！！！压入消息发送队列MSG_Pool");
|
||
return;
|
||
}
|
||
}
|
||
catch (Exception e)
|
||
{
|
||
OutNetLog(e.ToString());
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 发送数据并计数
|
||
/// </summary>
|
||
/// <param name="data"></param>
|
||
void SendWithIndex(AsyncUserToken token, ushort CmdID, byte[] data)
|
||
{
|
||
try
|
||
{
|
||
//发送数据
|
||
SendMessage(token, CmdID, data);
|
||
token.SendIndex = MaxSendIndexNum;
|
||
}
|
||
catch
|
||
{
|
||
CloseReady(token);
|
||
}
|
||
}
|
||
|
||
void SendMessage(AsyncUserToken token, ushort CmdID, byte[] data)
|
||
{
|
||
if (token == null || token.Socket == null || !token.Socket.Connected)
|
||
return;
|
||
try
|
||
{
|
||
if (m_Sendpool.Count > 0)
|
||
{
|
||
SocketAsyncEventArgs myreadEventArgs = m_Sendpool.Pop();
|
||
myreadEventArgs.UserToken = token;
|
||
myreadEventArgs.AcceptSocket = token.Socket;
|
||
//myreadEventArgs.SetBuffer(message, 0, message.Length); //将数据放置进去.
|
||
//更换为CMDID和Data直接写入SocketAsyncEventArgs的Buff
|
||
HunterNet_C2S.SetDataToSocketAsyncEventArgs(myreadEventArgs, CmdID, data);
|
||
|
||
//若不需要等待
|
||
if (!token.Socket.SendAsync(myreadEventArgs))
|
||
{
|
||
m_Sendpool.Push(myreadEventArgs);
|
||
}
|
||
return;
|
||
}
|
||
else
|
||
{
|
||
//先压入队列，等待m_Sendpool回收
|
||
msg_pool.Enqueue(new TokenWithMsg() { token = token, CMDID = CmdID, data = data });
|
||
//OutNetLog("！！！！压入消息发送队列MSG_Pool");
|
||
return;
|
||
}
|
||
}
|
||
catch (Exception e)
|
||
{
|
||
OutNetLog(e.ToString());
|
||
}
|
||
}
|
||
#endregion
|
||
|
||
#region 处理前预备
|
||
private void DataCallBackReady(AsyncUserToken sk, Span<byte> data)
|
||
{
|
||
//增加接收计数
|
||
sk.RevIndex = MaxRevIndexNum;
|
||
|
||
if (data.Length == 1 && data[0] == 0x00)//心跳包
|
||
{
|
||
//OutNetLog("收到心跳包");
|
||
//无处理
|
||
}
|
||
else
|
||
{
|
||
try
|
||
{
|
||
//将数据包交给后台处理,这里你也可以新开个线程来处理.加快速度.
|
||
HunterNet_S2C.AnalysisPkgData(data, out ushort CmdID, out ushort Error, out byte[] resultdata);
|
||
OnReceive?.Invoke(sk, CmdID, Error, resultdata);
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
OutNetLog("数据解析错误");
|
||
}
|
||
}
|
||
}
|
||
private void OutNetLog(string msg)
|
||
{
|
||
OnNetLog?.Invoke(msg);
|
||
}
|
||
#endregion
|
||
|
||
#region 心跳包
|
||
/// <summary>
|
||
/// 发送心跳包
|
||
/// </summary>
|
||
/// <param name="sk"></param>
|
||
///
|
||
private void SendHeartbeatWithIndex(AsyncUserToken token)
|
||
{
|
||
if (token == null || token.Socket == null || !token.Socket.Connected)
|
||
return;
|
||
try
|
||
{
|
||
//OutNetLog(DateTime.Now.ToString() + "发送心跳包");
|
||
token.SendIndex = MaxSendIndexNum;
|
||
SendHeartbeatMessage(token);
|
||
}
|
||
catch (Exception e)
|
||
{
|
||
CloseReady(token);
|
||
}
|
||
}
|
||
/// <summary>
|
||
/// 心跳包时钟事件
|
||
/// </summary>
|
||
/// <param name="sender"></param>
|
||
/// <param name="e"></param>
|
||
private void CheckUpdatetimer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
|
||
{
|
||
for (int i = 0; i < m_clients.Count; i++)
|
||
{
|
||
//接收服务器数据计数
|
||
m_clients[i].RevIndex--;
|
||
if (m_clients[i].RevIndex <= 0)
|
||
{
|
||
//判定掉线
|
||
CloseReady(m_clients[i]);
|
||
return;
|
||
}
|
||
|
||
//发送计数
|
||
m_clients[i].SendIndex--;
|
||
if (m_clients[i].SendIndex <= 0)//需要发送心跳包了
|
||
{
|
||
//重置倒计时计数
|
||
m_clients[i].SendIndex = MaxSendIndexNum;
|
||
SendHeartbeatWithIndex(m_clients[i]);
|
||
}
|
||
}
|
||
}
|
||
#endregion
|
||
}
|
||
}
|