C# Socket 测试客户端

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.Threading;

namespace Socket.Test
{

    public partial class frmSocketClient : Form
    {

        System.Collections.Concurrent.ConcurrentQueue<string> logs = new System.Collections.Concurrent.ConcurrentQueue<string>();
        // The response from the remote device.  
        //private static String response = String.Empty;
        private List<GSocket> sockets = new List<GSocket>();

        public frmSocketClient()
        {
            InitializeComponent();
        }
        private int successcount = 0;
        delegate void DeAppend(string txt);
        delegate void DeEnable(bool enable);
        delegate void DeCount();

        private string ip;
        private int port, clientsperthread, threads;
        private string data;
        private int repeat;
        private int interval, intervalPerSend, count;
        private bool islog = false;
        
        private void AppendToTextBox(string txt)
        {
            if (txtLog.InvokeRequired)
            {
                DeAppend de = new DeAppend(AppendToTextBox);
                this.Invoke(de, new object[] { txt });
            }
            else
            {
                if (chkBoxLog.Checked)
                {
                    txtLog.AppendText(txt);
                    txtLog.AppendText("
");
                }
            }
        }

        private void Append(string s)
        {
            if (!islog) return;
            Monitor.Enter(logs);
            logs.Enqueue(string.Concat(s, "
"));
            Monitor.Exit(logs);
        }
        private void AppendLogToTextBox()
        {
            while (true)
            {
                if (logs.Count > 0)
                {
                    StringBuilder sb = new StringBuilder();
                    Monitor.Enter(logs);
                    string s;
                    while (logs.TryDequeue(out s))
                    {
                        sb.Append(s);
                    }
                    Monitor.Exit(logs);
                    AppendToTextBox(sb.ToString());
                    sb.Clear();
                }
                System.Threading.Thread.Sleep(300);
            }
        }
        private void Count()
        {
            if (this.InvokeRequired)
            {
                DeCount de = new DeCount(Count);
                this.Invoke(de, new object[] { });
            }
            else
            {
                successcount++;
                this.Text = string.Concat("Socket Client Test - [Success connected: ", successcount, "]");
            }
        }
        private void Error(string txt)
        {
            if (txtLog.InvokeRequired)
            {
                DeAppend de = new DeAppend(Error);
                this.Invoke(de, new object[] { txt });
            }
            else
            {
                Console.WriteLine(txt);
                txtLog.AppendText(txt);
                txtLog.AppendText("
");
            }
        }
        private void Enable(bool enable)
        {
            if (txtLog.InvokeRequired)
            {
                DeEnable de = new DeEnable(Enable);
                this.Invoke(de, new object[] { enable });
            }
            else
            {
                btnConnect.Text = enable? "Close" : "Connect";
                txtData.Enabled = enable;
                cmbRepeat.Enabled = enable;
                btnSend.Enabled = enable;
                cmbInterval.Enabled = enable;
                cmbIntervalPerSend.Enabled = enable;
                chkBoxLog.Enabled = enable;
                cmbCount.Enabled = enable;

                txtIP.Enabled = !enable;
                txtPort.Enabled = !enable;
                cmbThreads.Enabled = !enable;
                cmbClients.Enabled = !enable;
            }
        }

        private void btnConnect_Click(object sender, EventArgs e)
        {
            if (btnConnect.Text == "Connect")
            {
                Connect();
            }
            else
            {
                try
                { 
                    foreach(var item in sockets)
                    {
                        item.Close();
                    }
                    sockets.Clear();
                }
                catch (Exception ex)
                {
                    Error(ex.ToString());
                }
                Enable(false);
            }
        }
        private void Connect()
        {
            islog = chkBoxLog.Checked;
            successcount = 0;
            ip = txtIP.Text;
            if(!int.TryParse(txtPort.Text, out port) || port == 0)
            {
                MessageBox.Show("port Required");
                txtPort.Focus();
                return;
            }
            if (!int.TryParse(cmbThreads.Text, out threads))
            {
                MessageBox.Show("invaild Threads");
                cmbThreads.Focus();
                return;
            }
            if (!int.TryParse(cmbClients.Text, out clientsperthread))
            {
                MessageBox.Show("invaild Clients");
                cmbThreads.Focus();
                return;
            }
            if (clientsperthread <= 0) clientsperthread = 1;
            if (threads <= 0) threads = 1;

            if (ip == "")
            {
                MessageBox.Show("IP Required");
                txtIP.Focus();
                return;
            }
            try
            {
                for (int i = 0; i < threads; i++)
                {
                    Thread th = new Thread(new ParameterizedThreadStart(Start));
                    th.Start(i);
                }
            }
            catch (Exception ex)
            {
                Error(ex.ToString());
            }
        }
        private void Start(object o)
        {
            int t = (int)o;
            for (int i = 0; i < clientsperthread; i++)
            {
                GSocket socket = new GSocket(ip, port);
                socket.Name = string.Concat("S", t, "-", i.ToString().PadLeft(6, '0'));
                socket.Append = Append;
                socket.Error = Error;
                socket.Enable = Enable;
                socket.Count = Count;
                socket.Connect();
                AddSocket(socket);
            }
        }
        private void AddSocket(GSocket s)
        {
            Monitor.Enter(sockets);
            sockets.Add(s);
            Monitor.Exit(sockets);
        }

        private void frmSocketClient_Load(object sender, EventArgs e)
        {
            Thread th = new Thread(new System.Threading.ThreadStart(AppendLogToTextBox));
            th.IsBackground = true;
            th.Start();
        }

        private void btnSend_Click(object sender, EventArgs e)
        {
            btnSend.Enabled = false;
            try
            {
                islog = chkBoxLog.Checked;
                data = txtData.Text;
                repeat = int.Parse(cmbRepeat.Text);
                intervalPerSend = int.Parse(cmbIntervalPerSend.Text);
                interval = int.Parse(cmbInterval.Text);
                count = int.Parse(cmbCount.Text);
                Thread th = new Thread(new ThreadStart(Send));
                th.Start();
            }
            catch (Exception ex)
            {
                Error(ex.ToString());
            }
            btnSend.Enabled = true;
        }
        private void Send()
        {
            if (count == 0) count = 1;
            for (int j = 0; j < count; j++)
            {
                for (int i = 0; i < sockets.Count; i++)
                {
                    sockets[i].data = data;
                    sockets[i].interval = intervalPerSend;
                    sockets[i].repeat = repeat;
                    sockets[i].SendData();
                    Console.WriteLine("Send data");
                }
                if(interval > 0) Thread.Sleep(interval);
            }
        }
    }

    public class StateObject
    {
        // Client socket.  
        public Socket workSocket = null;
        // Size of receive buffer.  
        public const int BufferSize = 256;
        // Receive buffer.  
        public byte[] buffer = new byte[BufferSize];
        // Received data string.  
        //public StringBuilder sb = new StringBuilder();
    }
    public class GSocket
    {
        // ManualResetEvent instances signal completion.  
        private static ManualResetEvent connectDone = new ManualResetEvent(false);
        private static ManualResetEvent sendDone = new ManualResetEvent(false);
        private static ManualResetEvent receiveDone = new ManualResetEvent(false);
        private Socket client = null;
        public string data { get; set; }
        public int repeat { get; set; }
        public int interval { get; set; }

        private int _port = 0;
        private string Ip = null;
        private bool isconnected = false;

        private Random rd = new Random();
        private string GetRand()
        {
            return rd.Next(1, 100).ToString();
        }
        public GSocket(string ip, int port)
        {
            Ip = ip;
            _port = port;
        }

        public string Name { get; set; }
        public Action<string> Append { get; set; }
        public Action<string> Error { get; set; }
        public Action<bool> Enable { get; set; }
        public Action Count { get; set; }


        public void Connect()
        {
            try
            {
                // Establish the remote endpoint for the socket.  
                // The name of the
                // remote device is "host.contoso.com".  

                //IPHostEntry ipHostInfo = Dns.GetHostEntry(txtIP.Text);
                //IPAddress ipAddress = ipHostInfo.AddressList[0];
                IPAddress ipAddress = IPAddress.Parse(Ip);
                IPEndPoint remoteEP = new IPEndPoint(ipAddress, _port);

                // Create a TCP/IP socket.  
                client = new Socket(ipAddress.AddressFamily,
                    SocketType.Stream, ProtocolType.Tcp);

                // Connect to the remote endpoint.  
                client.BeginConnect(remoteEP,
                    new AsyncCallback(ConnectCallback), client);

                connectDone.WaitOne();
                Enable(true);
                //Append("Connected");


                // Send test data to the remote device.  
                //Send(client, "This is a test<EOF>");
                //Send(client, txtData.Text);
                //sendDone.WaitOne();

                // Receive the response from the remote device.  
                Receive(client);
                //receiveDone.WaitOne();

                // Write the response to the console.  
                //Append(string.Concat("Response received : ", response));

                isconnected = true;
                Count();

            }
            catch (Exception ex)
            {
                isconnected = false;
                Error(string.Concat("[", Name, "]", ex.ToString()));
            }
        }
        public void Close()
        {
            try
            {
                Send(client, "exit");
                client.Shutdown(SocketShutdown.Both);
                //client.Close();
            }
            catch (Exception ex)
            {
                Error(string.Concat("[", Name, "]", ex.ToString()));
            }
        }
        private void ConnectCallback(IAsyncResult ar)
        {
            try
            {
                // Retrieve the socket from the state object.  
                Socket client = (Socket)ar.AsyncState;

                // Complete the connection.  
                client.EndConnect(ar);

                Append(string.Concat("[", Name, "]Socket connected"));

                // Signal that the connection has been made.  
                connectDone.Set();
            }
            catch (Exception ex)
            {
                Error(string.Concat("[", Name, "]", ex.ToString()));
            }
        }

        private void Receive(Socket client)
        {
            try
            {
                // Create the state object.  
                StateObject state = new StateObject();
                state.workSocket = client;
                //Append("Begin to receive");
                // Begin receiving the data from the remote device.  
                client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0,
                    new AsyncCallback(ReceiveCallback), state);
            }
            catch (Exception ex)
            {
                Error(string.Concat("[", Name, "]", ex.ToString()));
            }
        }

        private void ReceiveCallback(IAsyncResult ar)
        {
            try
            {
                //Append("Start to receive");
                // Retrieve the state object and the client socket
                // from the asynchronous state object.  
                StateObject state = (StateObject)ar.AsyncState;
                Socket client = state.workSocket;

                // Read data from the remote device.  
                int bytesRead = client.EndReceive(ar);
                //Append("Received " + bytesRead);

                if (bytesRead > 0)
                {
                    // There might be more data, so store the data received so far.  
                    Append(string.Concat("[", Name, "][", GetTime(), "]Received: ", Encoding.ASCII.GetString(state.buffer, 0, bytesRead)));

                    // Get the rest of the data.  
                    client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0,
                        new AsyncCallback(ReceiveCallback), state);
                }
                else
                {
                    // Signal that all bytes have been received.  
                    receiveDone.Set();
                }
            }
            catch (Exception ex)
            {
                Error(string.Concat("[", Name, "]", ex.ToString()));
            }
        }
        private string GetTime()
        {
            return DateTime.Now.ToString("yy-MM-dd HH:mm:ss");
        }
        private void Send(Socket client, String data)
        {
            try
            {
                string newdata = data.Replace("{rand}", GetRand());
                // Convert the string data to byte data using ASCII encoding.  
                byte[] byteData = Encoding.ASCII.GetBytes(newdata);

                // Begin sending the data to the remote device.  
                client.BeginSend(byteData, 0, byteData.Length, 0,
                    new AsyncCallback(SendCallback), client);
            }
            catch (Exception ex)
            {
                Error(string.Concat("[", Name, "]", ex.ToString()));
            }
        }

        private void SendCallback(IAsyncResult ar)
        {
            try
            {
                // Retrieve the socket from the state object.  
                Socket client = (Socket)ar.AsyncState;

                // Complete sending the data to the remote device.  
                int bytesSent = client.EndSend(ar);
                //Append(string.Format("Sent {0} bytes to server.", bytesSent));

                // Signal that all bytes have been sent.  
                sendDone.Set();
            }
            catch (Exception ex)
            {
                Error(string.Concat("[", Name, "]", ex.ToString()));
            }
        }

        public void SendData()
        {
            if (!isconnected)
            {
                return;
            }
            Append(string.Concat("[", Name, "][", GetTime(), "]Data sent[", repeat, " Times]"));
            if (repeat > 1)
            {
                for (int i = 0; i < repeat; i++)
                {
                    Send(client, data);
                    //sendDone.WaitOne();
                    if (interval > 1)
                    {
                        Thread.Sleep(interval);
                    }
                }
            }
            else
            {
                Send(client, data);
                //sendDone.WaitOne();
            }
        }
    }
}

socket多线程客户端。