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| using System;
using System.Net;
using System.Net.Sockets;
using System.Collections;
using System.Threading;
using System.IO;
using YSPS_apps;
namespace YSPS_apps
{
//global variables
public static class Common
{
public static ArrayList acceptList = new ArrayList(); // liste to access the sockets variables of all the clients
public static ArrayList usernameList = new ArrayList(); // list of the usernames
}
public class Client
{
public Socket socketServer;
public Socket socketClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
public string username;
public int version;
private static Int32 bytesToInt32(byte[] FourByteArrToConvert)
{// convert a byte to an integer
return System.BitConverter.ToInt32(FourByteArrToConvert, 0);
}
private static byte[] int32ToBytes(Int32 int32Input)
{// convert an integer to a byte
byte[] numBytesBuf = new byte[4];
return System.BitConverter.GetBytes(int32Input);
}
private static byte[] byte_concat(byte[] array1, byte[] array2)
{
byte[] array3 = new byte[array1.Length + array2.Length];
array1.CopyTo(array3, 0);
array2.CopyTo(array3, array1.Length);
return array3;
}
public Client(System.Net.Sockets.Socket CurrentClient2)
{
socketServer = CurrentClient2;
IPEndPoint ipEnd = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 7914);
socketClient.Connect(ipEnd);// YSPS connects to the server
Console.Out.WriteLine(socketClient.Available + "et" + socketServer.Available);//debug output
while (socketServer.Available == 0)
{
Console.Out.WriteLine("sleep");//debug output
Thread.Sleep(200);//wait an expect an answer from the YSFS server
if (socketServer.Available != 0)
break;
}
byte[] msgFromServer = new Byte[socketServer.Available];
socketServer.Receive(msgFromServer, 0, socketServer.Available, SocketFlags.None);
//Console.Out.WriteLine("valeur" + System.Text.Encoding.UTF8.GetString(msgFromServer).Trim().IndexOf('\x0018') + System.Text.Encoding.UTF8.GetString(msgFromServer).Trim().IndexOf('\x0061') + System.Text.Encoding.UTF8.GetString(msgFromServer).Trim().IndexOf('\x007A') + System.Text.Encoding.UTF8.GetString(msgFromServer).Trim().IndexOf('\x0065'));
byte[] user=new byte[16];
for (int i = 0; i < 16; i++)
{
user[i] = 32;
}
for (int i = 8; i < 16;i++)
{
if (msgFromServer[i] == 0)
{
break;
}
user[i-8]=msgFromServer[i];
}
username = System.Text.Encoding.UTF8.GetString(user);
username=username.Normalize().Trim();
Console.Out.WriteLine(username.Length);
Console.Out.WriteLine("username " + username+ "end");
Common.usernameList.Add(username);
socketClient.Send(msgFromServer);
}
public void run()
{
while (true)
{
if (socketClient.Available > 0)
{//from server
byte[] msgToClient = new Byte[socketClient.Available];
socketClient.Receive(msgToClient);
//socketClient.Receive(msgToClient, 0, socketClient.Available, SocketFlags.None);
string messageReceived = System.Text.Encoding.UTF8.GetString(msgToClient).Trim();
try
{
socketServer.Send(msgToClient);
}
catch
{
Console.Out.WriteLine(username + " has left the server");
break;
}
}
if (socketServer.Available > 0)
{//from client
byte[] msgLength = new Byte[4];
socketServer.Receive(msgLength, 0, 4, SocketFlags.None);
int byte_length = bytesToInt32(msgLength);
if (byte_length <= socketServer.Available)
{//if the message-length match with the real length of the packet
byte[] msgToServer = new Byte[byte_length];
socketServer.Receive(msgToServer, 0, byte_length, SocketFlags.None);
int data_kind = bytesToInt32(msgToServer);
//Console.Out.WriteLine(data_kind.ToString());//debug
if (data_kind == 32)
{//if it's a chat message
Console.Out.WriteLine("chat message");
string message = System.Text.Encoding.UTF8.GetString(msgToServer).ToString().Trim();//the whole chat message
Console.Out.WriteLine(message);//debug
int send_to_pos = message.IndexOf("%", username.Length + 2);
if (send_to_pos != -1)
{//if we found "%"
Console.Out.WriteLine("to an user");
int end_send_to_pos = message.IndexOf('%', send_to_pos + 1);
if (end_send_to_pos != -1)
{
string to_user = message.Substring(send_to_pos + 1, end_send_to_pos - send_to_pos - 1).Trim();
//string chat_message = "[" + username + "] " + message.Substring(end_send_to_pos, message.Length - end_send_to_pos).Trim();
bool to_user_exist = false;
for (int i = 0; i < Common.usernameList.Count; i++)
{
Console.Out.WriteLine("testing " + ((string)Common.usernameList[i]).Trim() + " with " + to_user + " end");
if (((string)Common.usernameList[i]).Trim() == to_user)
{
to_user_exist = true;
Console.Out.WriteLine("User found");
((Socket)Common.acceptList[i]).Send(byte_concat(msgLength, msgToServer));
}
}
if (to_user_exist == false)
{
Console.Out.WriteLine("Unable to send this message to " + to_user);
}
}
else
{
Console.Out.WriteLine("Failed to find the 2nd %");
}
}
else
{
socketClient.Send(byte_concat(msgLength, msgToServer));//send the chat message to everybody
}
}
else
{
socketClient.Send(byte_concat(msgLength, msgToServer));//Send to the server
}
}
}
}
}
}
public class Server
{
public void Start()
{
IPHostEntry ipHostEntry = Dns.Resolve(Dns.GetHostName());
foreach (IPAddress ip in ipHostEntry.AddressList)
{
Console.Out.WriteLine(ip.ToString());
}
IPAddress ipAddress = ipHostEntry.AddressList[ipHostEntry.AddressList.Length - 1];
Socket CurrentClient = null;
Socket ServerSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
ServerSocket.Bind(new IPEndPoint(0, 7915));
ServerSocket.Listen(30);
while (true)
{
Console.WriteLine("Attente d'une nouvelle connexion...");
CurrentClient = ServerSocket.Accept();
Console.Out.WriteLine(CurrentClient.GetType().ToString());
Common.acceptList.Add(CurrentClient);
Client obj = new Client(CurrentClient);
Thread thread2 = new Thread(new ThreadStart(obj.run));
thread2.Start();
Console.WriteLine("Nouveau client:" + CurrentClient.GetHashCode());
}
}
catch (SocketException E)
{
Console.WriteLine(E.Message);
}
}
}
class MainClass
{
public static void Main(string[] args)
{
Server startIt = new Server();
startIt.Start();
}
}
} |
Programme qui consomme 100% CPU,des astuces pour optimiser les ressources processeur?
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