755 lines
28 KiB
C#
755 lines
28 KiB
C#
using Google.Protobuf;
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using HunterProtobufCore;
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using System.Net;
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using System.Net.Sockets;
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namespace HaoYueNet.ServerNetwork
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{
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public class TcpSaeaServer
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{
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/// <summary>
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/// 心跳包数据
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/// </summary>
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static byte[] HeartbeatData = new byte[5] { 0x05, 0x00, 0x00, 0x00, 0x00 };
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//响应倒计时计数最大值
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//public int MaxRevIndexNum { get; set; } = 5;
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////发送倒计时计数最大值
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//public int MaxSendIndexNum { get; set; } = 3;
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//响应倒计时计数最大值
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public int MaxRevIndexNum { get; set; } = 50;
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//发送倒计时计数最大值
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public int MaxSendIndexNum { get; set; } = 3;
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//计时器间隔
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private static int TimerInterval = 3000;
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/// <summary>
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/// 心跳包计数器
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/// </summary>
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private System.Timers.Timer _heartTimer;
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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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Socket listenSocket; //监听Socket
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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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List<AsyncUserToken> m_clients; //客户端列表
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protected Dictionary<Socket, AsyncUserToken> _DictSocketAsyncUserToken = new Dictionary<Socket, AsyncUserToken>();
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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, 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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#region 定义属性
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/// <summary>
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/// 获取客户端列表
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/// </summary>
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public List<AsyncUserToken> ClientList { get { return m_clients; } }
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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 TcpSaeaServer(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 连接操作
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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(IPEndPoint localEndPoint, bool bReuseAddress = false)
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{
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try
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{
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ClearUserToken();
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listenSocket = new Socket(localEndPoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
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if (bReuseAddress)
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{
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listenSocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
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}
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listenSocket.Bind(localEndPoint);
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// start the server with a listen backlog of 100 connections
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listenSocket.Listen(m_maxConnectNum);
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// post accepts on the listening socket
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StartAccept(null);
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OutNetLog("监听:" + listenSocket.LocalEndPoint.ToString());
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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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listenSocket.Shutdown(SocketShutdown.Both);
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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
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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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//关闭客户端连接
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private void CloseClientSocket(SocketAsyncEventArgs e)
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{
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AsyncUserToken token = e.UserToken as AsyncUserToken;
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//调用关闭连接
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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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// close the socket associated with the client
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try { token.Socket.Shutdown(SocketShutdown.Send); }
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catch (Exception) { }
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token.Socket.Close();
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// decrement the counter keeping track of the total number of clients connected to the server
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Interlocked.Decrement(ref m_clientCount);
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m_maxNumberAcceptedClients.Release();
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// Free the SocketAsyncEventArg so they can be reused by another client
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ReleaseSocketAsyncEventArgs(e);
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}
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#endregion
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#region Token管理
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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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public AsyncUserToken GetAsyncUserTokenForSocket(Socket sk)
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{
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return _DictSocketAsyncUserToken.ContainsKey(sk) ? _DictSocketAsyncUserToken[sk] : null;
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}
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#endregion
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#region 监听客户端建立连接
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// Begins an operation to accept a connection request from the client
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//
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// <param name="acceptEventArg">The context object to use when issuing
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// the accept operation on the server's listening socket</param>
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public void StartAccept(SocketAsyncEventArgs acceptEventArg)
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{
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if (acceptEventArg == null)
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{
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acceptEventArg = new SocketAsyncEventArgs();
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acceptEventArg.Completed += new EventHandler<SocketAsyncEventArgs>(AcceptEventArg_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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acceptEventArg.AcceptSocket = null;
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}
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m_maxNumberAcceptedClients.WaitOne();
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if (!listenSocket.AcceptAsync(acceptEventArg))
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{
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ProcessAccept(acceptEventArg);
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}
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}
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// This method is the callback method associated with Socket.AcceptAsync
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// operations and is invoked when an accept operation is complete
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//
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void AcceptEventArg_Completed(object sender, SocketAsyncEventArgs e)
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{
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ProcessAccept(e);
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}
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private void ProcessAccept(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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// 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.AcceptSocket;
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userToken.ConnectTime = DateTime.Now;
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userToken.Remote = e.AcceptSocket.RemoteEndPoint;
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userToken.IPAddress = ((IPEndPoint)(e.AcceptSocket.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.AcceptSocket.ReceiveAsync(readEventArgs))
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{
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ProcessReceive(readEventArgs);
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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 完成端口收发处理
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// This method is invoked when an asynchronous receive operation completes.
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// If the remote host closed the connection, then the socket is closed.
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// If data was received then the data is echoed back to the client.
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//
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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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// check if the remote host closed the connection
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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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//读取数据
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//byte[] data = new byte[e.BytesTransferred];
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//Array.Copy(e.Buffer, e.Offset, data, 0, e.BytesTransferred);
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//lock (token.Buffer)
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lock(token.memoryStream)
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{
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//token.Buffer.AddRange(data);
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token.memoryStream.Write(e.Buffer, e.Offset, e.BytesTransferred);
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}
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do
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{
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//如果包头不完整
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//if (token.Buffer.Count < 4)
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if (token.memoryStream.Length < 4)
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break;
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//判断包的长度
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//byte[] lenBytes = token.Buffer.GetRange(0, 4).ToArray();
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//int packageLen = BitConverter.ToInt32(lenBytes, 0) - 4;
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//if (packageLen > token.Buffer.Count - 4)
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//{ //长度不够时,退出循环,让程序继续接收
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// break;
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//}
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long FristBeginPos = token.memoryStream.Position;
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byte[] lenBytes = new byte[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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if (packageLen > token.memoryStream.Length - 4)
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{ //长度不够时,退出循环,让程序继续接收
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break;
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}
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//包够长时,则提取出来,交给后面的程序去处理
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//byte[] rev = token.Buffer.GetRange(4, packageLen).ToArray();
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byte[] rev = new byte[packageLen];
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token.memoryStream.Seek(4, SeekOrigin.Begin);
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token.memoryStream.Read(rev, 0, packageLen);
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////从数据池中移除这组数据
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//lock (token.Buffer)
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//{
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// token.Buffer.RemoveRange(0, packageLen + 4);
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//}
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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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DataCallBackReady(token, rev);
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//这里API处理完后,并没有返回结果,当然结果是要返回的,却不是在这里, 这里的代码只管接收.
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//若要返回结果,可在API处理中调用此类对象的SendMessage方法,统一打包发送.不要被微软的示例给迷惑了.
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//} while (token.Buffer.Count > 4);
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} while (token.memoryStream.Length > 4);
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//继续接收. 为什么要这么写,请看Socket.ReceiveAsync方法的说明
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if (!token.Socket.ReceiveAsync(e))
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{
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this.ProcessReceive(e);
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}
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}
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else
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{
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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.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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/// <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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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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int sendrun = 0;
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private 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
|
||
{
|
||
TokenWithMsg msg = msg_pool.Dequeue();
|
||
//OutNetLog("从信息池取出发送");
|
||
SendMessage(msg.token, msg.message);
|
||
msg = null;
|
||
}
|
||
catch
|
||
{
|
||
OutNetLog("==============================================>");
|
||
}
|
||
}
|
||
sendrun--;
|
||
OutNetLog("!!!!!!!!!!!!!!!!!!!!!!!!!!");
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
OutNetLog(ex.ToString());
|
||
}
|
||
|
||
}
|
||
|
||
public void SendMessage(AsyncUserToken token, byte[] message,bool dontNeedHead = false)
|
||
{
|
||
if (token == null || token.Socket == null || !token.Socket.Connected)
|
||
return;
|
||
try
|
||
{
|
||
if (!dontNeedHead)
|
||
{
|
||
message = SendDataWithHead(message);
|
||
}
|
||
|
||
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.
|
||
|
||
//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, message = message });
|
||
//OutNetLog("！！！！压入消息发送队列MSG_Pool");
|
||
return;
|
||
}
|
||
}
|
||
catch (Exception e)
|
||
{
|
||
OutNetLog(e.ToString());
|
||
}
|
||
}
|
||
|
||
//拼接长度
|
||
private static byte[] SendDataWithHead(byte[] message)
|
||
{
|
||
|
||
MemoryStream memoryStream = new MemoryStream();//创建一个内存流
|
||
|
||
byte[] BagHead = BitConverter.GetBytes(message.Length + 4);//往字节数组中写入包头（包头自身的长度和消息体的长度）的长度
|
||
|
||
memoryStream.Write(BagHead, 0, BagHead.Length);//将包头写入内存流
|
||
|
||
memoryStream.Write(message, 0, message.Length);//将消息体写入内存流
|
||
|
||
byte[] HeadAndBody = memoryStream.ToArray();//将内存流中的数据写入字节数组
|
||
|
||
memoryStream.Close();//关闭内存
|
||
memoryStream.Dispose();//释放资源
|
||
|
||
return HeadAndBody;
|
||
}
|
||
|
||
#region
|
||
private void OnCloseReady(AsyncUserToken token)
|
||
{
|
||
OnDisconnected?.Invoke(token);
|
||
RemoveUserToken(token);
|
||
//如果有事件,则调用事件,发送客户端数量变化通知
|
||
OnClientNumberChange?.Invoke(-1, token);
|
||
// close the socket associated with the client
|
||
try
|
||
{
|
||
token.Socket.Shutdown(SocketShutdown.Send);
|
||
}
|
||
catch (Exception) { }
|
||
token.Socket.Close();
|
||
// decrement the counter keeping track of the total number of clients connected to the server
|
||
Interlocked.Decrement(ref m_clientCount);
|
||
m_maxNumberAcceptedClients.Release();
|
||
}
|
||
|
||
/// <summary>
|
||
/// 发送数据并计数
|
||
/// </summary>
|
||
/// <param name="data"></param>
|
||
private void SendWithIndex(AsyncUserToken token, byte[] data)
|
||
{
|
||
try
|
||
{
|
||
//发送数据
|
||
SendMessage(token, data);
|
||
token.SendIndex = MaxSendIndexNum;
|
||
}
|
||
catch
|
||
{
|
||
OnCloseReady(token);
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 对外暴露的发送消息
|
||
/// </summary>
|
||
/// <param name="CMDID"></param>
|
||
/// <param name="data">序列化之后的数据</param>
|
||
public void SendToSocket(Socket sk, int CMDID, int ERRCODE, byte[] data)
|
||
{
|
||
AsyncUserToken token = GetAsyncUserTokenForSocket(sk);
|
||
HunterNet_S2C _s2cdata = new HunterNet_S2C();
|
||
_s2cdata.HunterNetCoreCmdID = CMDID;
|
||
_s2cdata.HunterNetCoreData = ByteString.CopyFrom(data);
|
||
_s2cdata.HunterNetCoreERRORCode = ERRCODE;
|
||
byte[] _finaldata = Serizlize(_s2cdata);
|
||
SendWithIndex(token, _finaldata);
|
||
}
|
||
|
||
private void DataCallBackReady(AsyncUserToken sk, 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
|
||
{
|
||
HunterNet_C2S _s2c = DeSerizlize<HunterNet_C2S>(data);
|
||
//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.
|
||
OnReceive?.Invoke(sk, (int)_s2c.HunterNetCoreCmdID, _s2c.HunterNetCoreData.ToArray());
|
||
//DataCallBack(sk, (int)_s2c.HunterNetCoreCmdID, _s2c.HunterNetCoreData.ToArray());
|
||
}
|
||
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 SendHeartbeat(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;
|
||
SendMessage(token, HeartbeatData, true);
|
||
}
|
||
catch (Exception e)
|
||
{
|
||
OnCloseReady(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
|
||
OnCloseReady(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;
|
||
SendHeartbeat(m_clients[i]);
|
||
}
|
||
}
|
||
}
|
||
#endregion
|
||
|
||
public static byte[] Serizlize(IMessage msg)
|
||
{
|
||
return msg.ToByteArray();
|
||
}
|
||
|
||
public static T DeSerizlize<T>(byte[] bytes)
|
||
{
|
||
var msgType = typeof(T);
|
||
object msg = Activator.CreateInstance(msgType);
|
||
((IMessage)msg).MergeFrom(bytes);
|
||
return (T)msg;
|
||
}
|
||
}
|
||
}
|