// async Accept
public void StartAccept(SocketAcceptEventHandler externalCallback = null, object externalCallbackState = null)
{
AcceptStateObject state = new AcceptStateObject();
state.workSocket = _socket;
state.externalCallback = externalCallback;
state.externalCallbackState = externalCallbackState;
_socket.BeginAccept(
new System.AsyncCallback(AcceptCallback), state);
}
private void AcceptCallback(IAsyncResult ar)
{
try
{
AcceptStateObject state = (AcceptStateObject)ar.AsyncState;
// Get the socket that handles the client request.
Socket listener = state.workSocket;
Socket handler = listener.EndAccept(ar);
SockBase sockBase = new SockBase(handler, SocketRole.Client, true);
sockBase.IsConnected = true;
sockBase.StartReceive();
SocketAcceptEvent?.Invoke(this, new SocketAcceptEventArgs(state, sockBase));
if (state.externalCallback != null)
{
state.externalCallback(this, new SocketAcceptEventArgs(state, sockBase));
}
listener.BeginAccept(
new System.AsyncCallback(AcceptCallback), state);
}
catch (ObjectDisposedException) { } // listener closed
}
public SocketAcceptEventArgs(AcceptStateObject state, SockBase handler)
{
State = state; Handler = handler;
}