private static void UserSocketReceive(IAsyncResult result)
{
ListenState state = null;
try
{
state = (ListenState)result.AsyncState;
var br = state.UserSocket.EndReceive(result);
if (br > 0)
{
try
{
state.ClientSocket.BeginSend(state.UserBuffer, 0, br, SocketFlags.None, ClientSocketSend, state);
}
catch (Exception ex)
{
MainForm.SendMessage($"##error in ClientSocketReceive.Send: {ex.Message}");
}
state.UserSocket.BeginReceive(state.UserBuffer, 0, ListenState.Lenght, SocketFlags.None, UserSocketReceive, state);
}
}
catch (Exception ex)
{
MainForm.SendMessage($"##error in UserSocketReceive: {ex.Message}");
state.ClientSocket?.Close();
state.UserSocket?.Close();
}
}
public void ListenStart(IPEndPoint client)
{
if (_client_socket == null)
{
_client_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
}
_client_socket.Bind(client);
_client_socket.Listen(10);
var state = new ListenState();
try
{
state.ClientSocket = _client_socket.Accept();
MainForm.SendMessage($">>>>client connected : {(state.ClientSocket.RemoteEndPoint as IPEndPoint).Address}");
state.UserSocket = _client_socket.Accept();
MainForm.SendMessage($">>>>user connected : {(state.UserSocket.RemoteEndPoint as IPEndPoint).Address}");
state.ClientSocket.BeginReceive(state.ClientBuffer, 0, ListenState.Lenght, SocketFlags.None, ClientSocketReceive, state);
state.UserSocket.BeginReceive(state.UserBuffer, 0, ListenState.Lenght, SocketFlags.None, UserSocketReceive, state);
}
catch (Exception ex)
{
MainForm.SendMessage($"error in listen start : {ex.Message}");
state.ClientSocket?.Close();
state.UserSocket?.Close();
}
}
private static void UserSocketSend(IAsyncResult result)
{
ListenState state = null;
try
{
state = (ListenState)result.AsyncState;
state.UserSocket.EndSend(result);
}
catch (Exception ex)
{
MainForm.SendMessage($"##error in ClientSocketSend: {ex.Message}");
state.ClientSocket.Close();
state.UserSocket.Close();
}
}
