Source: ../../fea/ifconfig_property.hh


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

// Copyright (c) 2007-2009 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_property.hh,v 1.6 2009/01/05 18:30:49 jtc Exp $

#ifndef __FEA_IFCONFIG_PROPERTY_HH__
#define __FEA_IFCONFIG_PROPERTY_HH__

#include "fea_data_plane_manager.hh"

class IfConfig;


class IfConfigProperty {
public:
    /**
     * Constructor.
     *
     * @param fea_data_plane_manager the corresponding data plane manager
     * (@ref FeaDataPlaneManager).
     */
    IfConfigProperty(FeaDataPlaneManager& fea_data_plane_manager);

    /**
     * Virtual destructor.
     */
    virtual ~IfConfigProperty();

    /**
     * Get the @ref IfConfig instance.
     *
     * @return the @ref IfConfig instance.
     */
    IfConfig& ifconfig() { return _ifconfig; }

    /**
     * Get the @ref FeaDataPlaneManager instance.
     *
     * @return the @ref FeaDataPlaneManager instance.
     */
    FeaDataPlaneManager& fea_data_plane_manager() { return _fea_data_plane_manager; }

    /**
     * Test whether this instance is running.
     *
     * @return true if the instance is running, otherwise false.
     */
    virtual bool is_running() const { return _is_running; }

    /**
     * Start operation.
     * 
     * @param error_msg the error message (if error).
     * @return XORP_OK on success, otherwise XORP_ERROR.
     */
    virtual int start(string& error_msg);
    
    /**
     * Stop operation.
     * 
     * @param error_msg the error message (if error).
     * @return XORP_OK on success, otherwise XORP_ERROR.
     */
    virtual int stop(string& error_msg);
    
    /**
     * Return true if the underlying system supports IPv4.
     * 
     * @return true if the underlying system supports IPv4, otherwise false.
     */
    virtual bool have_ipv4() const { return (_have_ipv4); }

    /**
     * Return true if the underlying system supports IPv6.
     * 
     * @return true if the underlying system supports IPv6, otherwise false.
     */
    virtual bool have_ipv6() const { return (_have_ipv6); }

    /**
     * Test whether the underlying system supports IPv4.
     * 
     * @return true if the underlying system supports IPv4, otherwise false.
     */
    virtual bool test_have_ipv4() const = 0;

    /**
     * Test whether the underlying system supports IPv6.
     * 
     * @return true if the underlying system supports IPv6, otherwise false.
     */
    virtual bool test_have_ipv6() const = 0;

protected:
    // Misc other state
    bool	_is_running;

private:
    IfConfig&			_ifconfig;
    FeaDataPlaneManager&	_fea_data_plane_manager;

    // Cached state whether the system has IPv4 or IPv6 support
    bool	_have_ipv4;
    bool	_have_ipv6;

    bool	_first_start;	// True if started for first time
};

#endif // __FEA_IFCONFIG_PROPERTY_HH__

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