internal IAsyncResult BeginConnect(int timeout,
string server,
int port,
AsyncCallback cb,
object state)
{
CheckDisposed();
Connect_SO stateObj = null;
if (null == server)
{
throw new ArgumentNullException("server");
}
if (port < IPEndPoint.MinPort || port > IPEndPoint.MaxPort)
{
throw new ArgumentOutOfRangeException("port", "Value, specified for the port is out of valid range.");
}
SetProgress(true);
try
{
stateObj = new Connect_SO(timeout, cb, state);
_socket.ConnectTimeout = timeout;
_socket.BeginConnect(server, port,
new AsyncCallback(this.OnEndConnectCB),
stateObj);
}
catch (SocketException e)
{
SetProgress(false);
CheckDisposed();
CheckTimeoutException(e);
throw;
}
catch (Exception)
{
SetProgress(false);
CheckDisposed();
throw;
}
catch
{
SetProgress(false);
CheckDisposed();
throw;
}
return(stateObj);
}
internal override IAsyncResult BeginEstablish(int timeout, AsyncCallback cb, object state)
{
CheckDisposed();
try
{
_socket.ConnectTimeout = timeout;
return(_socket.BeginConnect(_remoteEP, cb, state));
}
catch (SocketException e)
{
CheckDisposed();
CheckTimeoutException(e);
throw;
}
catch
{
CheckDisposed();
throw;
}
}