private void ServerBindButton_Click(object sender, EventArgs e)
{
IPAddress
ipAddress = IPAddress.Parse(IP);
IPEndPoint
anEndPoint = new IPEndPoint(ipAddress, Port);
ServerSocket = new ClientSocket("ServerSocket", MAX_LENGTH);
ServerSocket.socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
ServerSocket.socket.Blocking = checkBoxServerSocketBlocked.Checked;
ServerSocket.socket.Bind(anEndPoint);
ListBoxLog.Items.Add(string.Format("ServerSocket.Bind() (IsBound: {0})", ServerSocket.socket.IsBound));
ServerBindButton.Enabled = false;
ListBoxLog.Items.Add("ServerSocket.Listen()");
ServerSocket.socket.Listen(10);
ListBoxLog.Items.Add("ServerSocket.BeginAccept()");
ServerSocket.socket.BeginAccept(result => {
Socket
socket = (Socket)ServerSocket.socket.EndAccept(result);
if (ListBoxLog.InvokeRequired)
{
ListBoxLog.Invoke(new MethodInvoker(delegate { ListBoxLog.Items.Add("ServerSocket.EndAccept() (" + socket.RemoteEndPoint.ToString() + ")"); }));
}
else
{
ListBoxLog.Items.Add("ServerSocket.EndAccept() (" + socket.RemoteEndPoint.ToString() + ")");
}
if (ServerSocket.Sockets == null)
{
ServerSocket.Sockets = new List <Socket>();
}
ServerSocket.Sockets.Add(socket);
if (listBoxClients.InvokeRequired)
{
listBoxClients.Invoke(new MethodInvoker(delegate {
listBoxClients.Items.Add("Client# " + ServerSocket.Sockets.Count + " (" + socket.RemoteEndPoint.ToString() + ")");
listBoxClients.SelectedIndex = ServerSocket.Sockets.Count - 1;
ButtonReceiveServer.Enabled = true;
ButtonSendServer.Enabled = true;
}));
}
else
{
listBoxClients.Items.Add("Client# " + ServerSocket.Sockets.Count + " (" + socket.RemoteEndPoint.ToString() + ")");
listBoxClients.SelectedIndex = ServerSocket.Sockets.Count - 1;
ButtonReceiveServer.Enabled = true;
ButtonSendServer.Enabled = true;
}
}, null);
}
void ClientConnect(ClientSocket ClientSocket, IPEndPoint remoteEP)
{
ListBoxLog.Items.Add(string.Format("{0}.BeginConnect()", ClientSocket.Name));
ClientSocket.socket.BeginConnect(remoteEP, result => {
ClientSocket.socket.EndConnect(result);
if (ListBoxLog.InvokeRequired)
{
ListBoxLog.Invoke(new MethodInvoker(delegate
{
ListBoxLog.Items.Add(string.Format("{0}.EndConnect()", ClientSocket.Name));
ListBoxLog.Items.Add(string.Format("{0}.Connect() (Connected: {1})", ClientSocket1.Name, ClientSocket1.socket.Connected));
}));
}
else
{
ListBoxLog.Items.Add(string.Format("{0}.EndConnect()", ClientSocket.Name));
ListBoxLog.Items.Add(string.Format("{0}.Connect() (Connected: {1})", ClientSocket1.Name, ClientSocket1.socket.Connected));
}
}, null);
}
void SendCallback(IAsyncResult ar)
{
ClientSocket
Socket = (ClientSocket)ar.AsyncState;
int
SelectedIndex = -1;
if (listBoxClients.InvokeRequired)
{
listBoxClients.Invoke(new MethodInvoker(delegate { SelectedIndex = listBoxClients.SelectedIndex; }));
}
else
{
SelectedIndex = listBoxClients.SelectedIndex;
}
Socket
s;
if ((s = Socket.Sockets == null ? Socket.socket : (SelectedIndex >= 0 && SelectedIndex < Socket.Sockets.Count ? Socket.Sockets[SelectedIndex] : null)) == null)
{
return;
}
int
bytesSent = s.EndSend(ar);
if (ListBoxLog.InvokeRequired)
{
ListBoxLog.Invoke(new MethodInvoker(delegate { ListBoxLog.Items.Add(string.Format("{0}.EndSend() (Sent {1} bytes)", Socket.Name, bytesSent)); }));
}
else
{
ListBoxLog.Items.Add(string.Format("{0}.EndSend() (Sent {1} bytes)", Socket.Name, bytesSent));
}
}
void ReceiveCallback(IAsyncResult ar)
{
ClientSocket
Socket = (ClientSocket)ar.AsyncState;
int
SelectedIndex = -1;
if (listBoxClients.InvokeRequired)
{
listBoxClients.Invoke(new MethodInvoker(delegate { SelectedIndex = listBoxClients.SelectedIndex; }));
}
else
{
SelectedIndex = listBoxClients.SelectedIndex;
}
Socket
s;
if ((s = Socket.Sockets == null ? Socket.socket : (SelectedIndex >= 0 && SelectedIndex < Socket.Sockets.Count ? Socket.Sockets[SelectedIndex] : null)) == null)
{
return;
}
int
bytesRead = s.EndReceive(ar);
if (ListBoxLog.InvokeRequired)
{
ListBoxLog.Invoke(new MethodInvoker(delegate { ListBoxLog.Items.Add(string.Format("{0}.EndReceive()", Socket.Name)); }));
}
else
{
ListBoxLog.Invoke(new MethodInvoker(delegate { ListBoxLog.Items.Add(string.Format("{0}.EndReceive()", Socket.Name)); }));
}
if (bytesRead > 0)
{
Socket.sb.Append(Encoding.ASCII.GetString(Socket.buffer, 0, bytesRead));
if (s.Available > 0)
{
s.BeginReceive(Socket.buffer, 0, Socket.buffer.Length, 0, new AsyncCallback(ReceiveCallback), Socket);
}
else
{
if (Socket.sb.Length > 1)
{
string
tmpString = Socket.sb.ToString();
Socket.sb.Length = 0;
if (ListBoxLog.InvokeRequired)
{
ListBoxLog.Invoke(new MethodInvoker(delegate { ListBoxLog.Items.Add(string.Format("{0} (Received {1} bytes Data {2})", Socket.Name, tmpString.Length, tmpString)); }));
}
else
{
ListBoxLog.Items.Add(string.Format("{0} (Received {1} bytes Data {2})", Socket.Name, tmpString.Length, tmpString));
}
}
}
}
else
{
if (Socket.sb.Length > 1)
{
string
tmpString = Socket.sb.ToString();
if (ListBoxLog.InvokeRequired)
{
ListBoxLog.Invoke(new MethodInvoker(delegate { ListBoxLog.Items.Add(string.Format("{0} (Received {1} bytes Data {2})", Socket.Name, tmpString.Length, tmpString)); }));
}
else
{
ListBoxLog.Items.Add(string.Format("{0} (Received {1} bytes Data {2})", Socket.Name, tmpString.Length, tmpString));
}
}
}
}