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常用工具集/Utility/Network/TimeOutSocket.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Sockets;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace 常用工具集.Utility.Network
+{
+    public class TimeOutSocket
+    {
+        private bool IsConnectionSuccessful = false;
+        private Exception socketexception;
+        private ManualResetEvent TimeoutObject = new ManualResetEvent(false);
+        private string ip;
+        private int port;
+        private int timeout;
+        private TcpClient tcpClient;
+        public TimeOutSocket(string hostname, int port, int timeout_milliseconds)
+        {
+            this.ip = hostname;
+            this.port = port;
+            this.timeout = timeout_milliseconds;
+        }
+
+        public TcpClient Connect()
+        {
+            TimeoutObject.Reset();
+            socketexception = null;
+
+            TcpClient tcpclient = new TcpClient();
+            tcpclient.BeginConnect(this.ip, this.port, new AsyncCallback(CallBackMethod), tcpclient);
+
+            if (TimeoutObject.WaitOne(timeout, false))
+            {
+                if (IsConnectionSuccessful)
+                {
+                    return tcpclient;
+                }
+                else
+                {
+                    throw socketexception;
+                }
+            }
+            else
+            {
+                tcpclient.Close();
+                throw new TimeoutException("TimeOut Exception");
+            }
+        }
+
+        public void Disconnect()
+        {
+            tcpClient.Close();
+        }
+        private void CallBackMethod(IAsyncResult asyncresult)
+        {
+            try
+            {
+                IsConnectionSuccessful = false;
+                TcpClient tcpclient = asyncresult.AsyncState as TcpClient;
+
+                if (tcpclient.Client != null)
+                {
+                    tcpclient.EndConnect(asyncresult);
+                    IsConnectionSuccessful = true;
+                }
+            }
+            catch (Exception ex)
+            {
+                IsConnectionSuccessful = false;
+                socketexception = ex;
+            }
+            finally
+            {
+                TimeoutObject.Set();
+            }
+        }
+    }
+}