show_interfaces.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/tools/show_interfaces.hh,v 1.11 2008/10/02 21:57:13 bms Exp $

#ifndef __FEA_TOOLS_SHOW_INTERFACES_HH__
#define __FEA_TOOLS_SHOW_INTERFACES_HH__


#include "libxorp/service.hh"

#include "libfeaclient/ifmgr_xrl_mirror.hh"


class EventLoop;


class InterfaceMonitor : public IfMgrHintObserver,
             public ServiceBase,
             public ServiceChangeObserverBase {
public:
    InterfaceMonitor(EventLoop&     eventloop,
             const string&  class_name,
             const string&  finder_hostname,
             uint16_t       finder_port,
             const string&  fea_target);

    ~InterfaceMonitor();

    int startup();

    int shutdown();

    void print_interfaces(const string& print_iface_name) const;

protected:
    //
    // IfMgrHintObserver methods
    //
    void tree_complete();
    void updates_made();

    void incr_startup_requests_n();
    void decr_startup_requests_n();
    void incr_shutdown_requests_n();
    void decr_shutdown_requests_n();
    void update_status();

private:
    void status_change(ServiceBase*  service,
               ServiceStatus old_status,
               ServiceStatus new_status);

    const ServiceBase* ifmgr_mirror_service_base() const { return dynamic_cast<const ServiceBase*>(&_ifmgr); }

    const IfMgrIfTree&  ifmgr_iftree() const { return _ifmgr.iftree(); }

    int ifmgr_startup();

    int ifmgr_shutdown();

    EventLoop&      _eventloop;

    IfMgrXrlMirror  _ifmgr;

    //
    // Status-related state
    //
    size_t      _startup_requests_n;
    size_t      _shutdown_requests_n;
};

#endif // __FEA_TOOLS_SHOW_INTERFACES_HH__