ifconfig_observer.hh

// -*- c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t -*-

// Copyright (c) 2001-2009 XORP, Inc.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, Version 2, June
// 1991 as published by the Free Software Foundation. Redistribution
// and/or modification of this program under the terms of any other
// version of the GNU General Public License is not permitted.
// 
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For more details,
// see the GNU General Public License, Version 2, a copy of which can be
// found in the XORP LICENSE.gpl file.
// 
// XORP Inc, 2953 Bunker Hill Lane, Suite 204, Santa Clara, CA 95054, USA;
// http://xorp.net

// $XORP: xorp/fea/ifconfig_observer.hh,v 1.32 2008/10/02 21:56:47 bms Exp $

#ifndef __FEA_IFCONFIG_OBSERVER_HH__
#define __FEA_IFCONFIG_OBSERVER_HH__

#include "iftree.hh"
#include "fea_data_plane_manager.hh"

class IfConfig;


class IfConfigObserver {
public:
    IfConfigObserver(FeaDataPlaneManager& fea_data_plane_manager)
    : _is_running(false),
      _ifconfig(fea_data_plane_manager.ifconfig()),
      _fea_data_plane_manager(fea_data_plane_manager)
    {}

    virtual ~IfConfigObserver() {}

    IfConfig&   ifconfig() { return _ifconfig; }

    FeaDataPlaneManager& fea_data_plane_manager() { return _fea_data_plane_manager; }

    virtual bool is_running() const { return _is_running; }

    virtual int start(string& error_msg) = 0;
    
    virtual int stop(string& error_msg) = 0;
    
    virtual void receive_data(const vector<uint8_t>& buffer) = 0;

protected:
    // Misc other state
    bool    _is_running;

private:
    IfConfig&       _ifconfig;
    FeaDataPlaneManager& _fea_data_plane_manager;
};

#endif // __FEA_IFCONFIG_OBSERVER_HH__