147 lines
3.3 KiB
C#
147 lines
3.3 KiB
C#
/*
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* Created by SharpDevelop.
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* User: Alfred
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* Date: 28/12/2019
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* Time: 19:08
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*
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* To change this template use Tools | Options | Coding | Edit Standard Headers.
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*/
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using System;
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using System.Net;
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using System.Net.NetworkInformation;
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using System.Net.Sockets;
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using System.Threading;
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namespace captainalm.network.oc
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{
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public class OCNetworkListener {
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private Socket sSock;
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private Thread lThread;
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private Boolean listening;
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private OCNetworkClient acceptedClient;
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private Boolean cWaiting;
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private Boolean cExists;
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private Object slockcl = new Object();
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private IPEndPoint listeningAddress;
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public OCNetworkListener(IPEndPoint addressIn) {
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lThread = new Thread(new ThreadStart(this.run));
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lThread.IsBackground = true;
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listening = false;
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listeningAddress = addressIn;
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try {
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if (Environment.OSVersion.Version.Major >= 6 && addressIn.Address.Equals(IPAddress.IPv6Any)) {
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sSock = new Socket(AddressFamily.InterNetworkV6, SocketType.Stream, ProtocolType.Tcp);
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sSock.SetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.IPv6Only, false);
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} else {
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sSock = new Socket(addressIn.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
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}
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sSock.ReceiveBufferSize = Int16.MaxValue;
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sSock.SendBufferSize = Int16.MaxValue;
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sSock.ReceiveTimeout = 5000;
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sSock.SendTimeout = 5000;
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} catch (SocketException e) {
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sSock = null;
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}
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try {
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if (sSock == null) {
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throw new SocketException(0);
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}
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sSock.Bind(addressIn);
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sSock.Listen(1);
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listening = true;
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} catch (SocketException e) {
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}
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if (listening) {
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lThread.Start();
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}
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}
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public OCNetworkClient getAcceptedClient() {
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OCNetworkClient toret = null;
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lock (slockcl) {
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if (cWaiting && acceptedClient != null) {
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cExists = true;
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cWaiting = false;
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toret = acceptedClient;
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}
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}
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return toret;
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}
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public void returnAcceptedClient(OCNetworkClient toRet) {
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lock (slockcl) {
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if (cExists && toRet == acceptedClient) {
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toRet.shutdown();
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toRet.close();
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toRet = null;
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cExists = false;
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}
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}
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}
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public IPEndPoint getListeningAddress() {
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return listeningAddress;
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}
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public Boolean getIsThereGottenClient() {
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return cExists;
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}
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public Boolean getIsThereAcceptedClient() {
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return cWaiting;
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}
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public Boolean getIsListening() {
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return listening;
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}
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public void close() {
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if (acceptedClient != null && (cWaiting == true)) {
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this.getAcceptedClient();
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}
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if (acceptedClient != null && (cExists == true)) {
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this.returnAcceptedClient(acceptedClient);
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}
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if (listening) {
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sSock.Close();
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}
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listening = false;
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while (lThread.IsAlive) {
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try {
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Thread.Sleep(100);
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} catch (ThreadInterruptedException e) {
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}
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}
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sSock = null;
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}
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protected void run() {
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while (listening) {
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while (cExists) {
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try {
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Thread.Sleep(100);
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} catch (ThreadInterruptedException e) {
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}
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}
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try {
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Socket sa = sSock.Accept();
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sa.ReceiveBufferSize = Int16.MaxValue;
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sa.SendBufferSize = Int16.MaxValue;
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sa.ReceiveTimeout = 5000;
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sa.SendTimeout = 5000;
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acceptedClient = new OCNetworkClient(sa);
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cWaiting = true;
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while (cWaiting) {
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try {
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Thread.Sleep(100);
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} catch (ThreadInterruptedException e) {
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}
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}
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} catch (SocketException e) {
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}
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}
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}
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}
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}
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