310 lines
10 KiB
C#
310 lines
10 KiB
C#
using System;
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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
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{
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public class NetworkHelperP2PCore
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{
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private Socket client;
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//响应倒计时计数最大值
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private static int MaxRevIndexNum = 50;
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//发送倒计时计数最大值
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private static int MaxSendIndexNum = 3;
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//响应倒计时计数
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private static int RevIndex=0;
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//发送倒计时计数
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private static int SendIndex=0;
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//计时器间隔
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private static int TimerInterval = 3000;
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private System.Timers.Timer _heartTimer;
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public void Init(bool bBindReuseAddress = false,int bBindport = 0, AddressFamily addressFamily = AddressFamily.InterNetwork)
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{
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LogOut("==>初始化网络核心");
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RevIndex = MaxRevIndexNum;
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SendIndex = MaxSendIndexNum;
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client = new Socket(addressFamily,SocketType.Stream, ProtocolType.Tcp);
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if (bBindReuseAddress)
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{
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client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
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IPEndPoint ipe = new IPEndPoint(IPAddress.Any, Convert.ToInt32(bBindport));
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client.Bind(ipe);
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}
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}
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public bool Connect(string IP, int port)
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{
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//带回调的
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try
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{
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LogOut("连接到远程IP " + IP + ":" + port);
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client.Connect(IP, port);
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Thread thread = new Thread(Recive);
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thread.IsBackground = true;
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thread.Start(client);
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int localport = ((IPEndPoint)client.LocalEndPoint).Port;
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LogOut($"连接成功!连接到远程IP->{IP}:{port} | 本地端口->{localport}");
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if (_heartTimer == null)
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{
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_heartTimer = new System.Timers.Timer();
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}
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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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LogOut("开启心跳包检测");
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OnConnected(true);
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return true;
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}
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catch (Exception ex)
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{
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LogOut("连接失败：" + ex.ToString());
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OnConnected(false);
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return false;
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}
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}
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~NetworkHelperP2PCore()
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{
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client.Close();
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}
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private void SendToSocket(byte[] data)
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{
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//已拼接包长度，这里不再需要拼接长度
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//data = SendDataWithHead(data);
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try
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{
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SendWithIndex(data);
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}
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catch (Exception ex)
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{
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//连接断开
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OnCloseReady();
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return;
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}
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//LogOut("发送消息，消息长度=> "+data.Length);
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}
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private void SendHeartbeat()
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{
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try
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{
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SendWithIndex(BaseData.HeartbeatData);
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}
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catch (Exception ex)
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{
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//连接断开
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OnCloseReady();
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return;
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}
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//LogOut("发送心跳包");
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}
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/// <summary>
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/// 发送数据并计数
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/// </summary>
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/// <param name="data"></param>
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private void SendWithIndex(byte[] data)
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{
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//增加发送计数
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SendIndex = MaxSendIndexNum;
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//发送数据
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client.Send(data);
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}
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/// <summary>
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/// 供外部调用 发送消息
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/// </summary>
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/// <param name="CMDID"></param>
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/// <param name="ERRCODE"></param>
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/// <param name="data"></param>
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public void SendToSocket(int CMDID, int ERRCODE, byte[] data)
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{
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byte[] _finaldata = HunterNet_S2C.CreatePkgData((ushort)CMDID, (ushort)ERRCODE, data);
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SendToSocket(_finaldata);
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}
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public delegate void OnDataCallBack_Data(int CMDID, int ERRCODE, byte[] data);
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public event OnDataCallBack_Data OnDataCallBack;
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public delegate void delegate_NoData();
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public delegate void delegate_Bool(bool IsConnected);
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public event delegate_NoData OnClose;
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public event delegate_Bool OnConnected;
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public delegate void delegate_str(string Msg);
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/// <summary>
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/// 网络库调试日志输出
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/// </summary>
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public event delegate_str OnLogOut;
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/// <summary>
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/// 做好处理的连接管理
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/// </summary>
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private void OnCloseReady()
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{
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LogOut("关闭心跳包计数");
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_heartTimer.Enabled = false;
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_heartTimer.Elapsed -= CheckUpdatetimer_Elapsed;
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LogOut("关闭连接");
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//关闭Socket连接
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client.Close();
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OnClose();
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}
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/// <summary>
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/// 主动关闭连接
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/// </summary>
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public void CloseConntect()
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{
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OnCloseReady();
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}
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private void DataCallBackReady(byte[] data)
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{
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//增加接收计数
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RevIndex = MaxRevIndexNum;
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//不处理心跳包
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if (data.Length == 1 && data[0] == 0x00)
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{
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//LogOut("收到心跳包");
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return;
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}
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HunterNet_S2C.AnalysisPkgData(data, out ushort CmdID, out ushort Error, out byte[] resultdata);
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OnDataCallBack(CmdID, Error, resultdata);
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}
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MemoryStream reciveMemoryStream = new MemoryStream();//开辟一个反复使用的内存流
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byte[] reciveBuffer = new byte[1024 * 1024 * 2];//开辟一个反复使用的byte[]
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private void Recive(object o)
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{
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var client = o as Socket;
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while (true)
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{
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int effective = 0;
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try
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{
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effective = client.Receive(reciveBuffer);
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if (effective == 0)//为0表示已经断开连接
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{
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//清理数据
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reciveMemoryStream.SetLength(0);
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reciveMemoryStream.Seek(0, SeekOrigin.Begin);
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//远程主机强迫关闭了一个现有的连接
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OnCloseReady();
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return;
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}
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}
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catch (Exception ex)
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{
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//清理数据
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reciveMemoryStream.SetLength(0);
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reciveMemoryStream.Seek(0, SeekOrigin.Begin);
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//远程主机强迫关闭了一个现有的连接
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OnCloseReady();
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return;
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//断开连接
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}
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reciveMemoryStream.Write(reciveBuffer, 0, effective);//将接受到的数据写入内存流中
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byte[] getData = reciveMemoryStream.ToArray();//将内存流中的消息体写入字节数组
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int StartIndex = 0;//设置一个读取数据的起始下标
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while (true)
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{
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if (effective > 0)//如果接受到的消息不为0（不为空）
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{
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int HeadLength = 0;//包头长度（包头+包体）
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if (getData.Length - StartIndex < 4)//包头接受不完整
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{
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HeadLength = -1;
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}
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else
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{
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//如果包头接受完整 转换成int类型的数值
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HeadLength = BitConverter.ToInt32(getData, StartIndex);
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}
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//包头接受完整但是消息体不完整 //包头接受不完整
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//↓↓↓↓↓↓↓↓ ↓↓↓
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if (getData.Length - StartIndex < HeadLength || HeadLength == -1)
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{
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//流复用的方式 不用重新new申请
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reciveMemoryStream.Position = 0;
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reciveMemoryStream.SetLength(0);
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reciveMemoryStream.Write(getData, StartIndex, getData.Length - StartIndex);//从新将接受的消息写入内存流
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break;
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}
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else
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{
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int CoreLenght = HeadLength - 4;
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//用Span
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Span<byte> getData_span = getData;
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getData_span = getData_span.Slice(StartIndex + 4, CoreLenght);
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DataCallBackReady(getData_span.ToArray());
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StartIndex += HeadLength;//当读取一条完整的数据后，读取数据的起始下标应为当前接受到的消息体的长度（当前数据的尾部或下一条消息的首部）
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}
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}
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}
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}
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}
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private void CheckUpdatetimer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
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{
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//接收服务器数据计数
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RevIndex--;
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if (RevIndex <= 0)
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{
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//判定掉线
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OnCloseReady();
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return;
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}
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//发送计数
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SendIndex--;
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if (SendIndex <= 0)//需要发送心跳包了
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{
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//重置倒计时计数
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SendIndex = MaxSendIndexNum;
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SendHeartbeat();
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}
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}
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public void LogOut(string Msg)
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{
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OnLogOut(Msg);
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}
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public Socket GetClientSocket()
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{
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return client;
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}
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}
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}
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