/// <summary>
/// lap lai viec nhan du lieu tu server
/// </summary>
public void ReceiveData()
{
try
{
clientSocket.BeginReceive(receiveBuff, 0, receiveBuff.Length, SocketFlags.None, new AsyncCallback(ReceiveFromClient), clientSocket);
}
catch (Exception e) { ServerProgram.SetDataFunction(e.ToString()); }
}
public void SendData(byte[] data)
{
sendBuff = data;
try
{
clientSocket.BeginSend(sendBuff, 0, sendBuff.Length, SocketFlags.None, new AsyncCallback(SendToClient), clientSocket);
}
catch { ServerProgram.SetDataFunction("client ngat ket noi"); }
}
/// <summary>
/// ham call back gui du lieu, khoi tao lai gia tri cua buff
/// </summary>
/// <param name="ia">gia tri tra ve cua phuong thuc BeginSend</param>
private void SendToClient(IAsyncResult ia)
{
Socket s = (Socket)ia.AsyncState;
s.EndSend(ia);
string strData = Encoding.ASCII.GetString(sendBuff);
ServerProgram.SetDataFunction("to " + IPClient.ToString() + ": " + strData);
sendBuff = new byte[1024];
}
/// <summary>
/// ham call back nhan du lieu, in tin nhan ra man hinh va
/// </summary>
/// <param name="ia">gia tri tra ve cua phuong thuc BeginReceive</param>
private void ReceiveFromClient(IAsyncResult ia)
{
Socket s = (Socket)ia.AsyncState;
try
{
byteReceive = s.EndReceive(ia);
}
catch
{
ServerProgram.SetDataFunction("client ngat ket noi");
}
ServerProgram.Input(receiveBuff);
stringReceive = Encoding.ASCII.GetString(receiveBuff, 0, byteReceive);
ServerProgram.SetDataFunction("from " + IPClient.ToString() + ": " + stringReceive);
receiveBuff = new byte[1024];
ReceiveData();
}
public void RunClientThread()
{
try
{
//lay trang thai serverSocket
Socket e = (Socket)ia.AsyncState;
//chap nhan ket noi, tra ve 1 socket moi va su dung de ket noi voi client
clientSocket = serverSocket.EndAccept(ia);
IPClient = clientSocket.RemoteEndPoint;
string hello = "Xin chao client" + IPClient.ToString();
SendData(Encoding.ASCII.GetBytes(hello));
ServerProgram.SetDataFunction("Client: " + IPClient.ToString() + " da ket noi");
tReceive = new Thread(new ThreadStart(ReceiveData));
tReceive.Start();
AddClient();
UpdateClients();
}
catch (Exception e)
{
throw;
}
}