xorp

policy_varrw.hh

00001 // -*- c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t -*-
00002 // vim:set sts=4 ts=8:
00003 
00004 // Copyright (c) 2001-2009 XORP, Inc.
00005 //
00006 // This program is free software; you can redistribute it and/or modify
00007 // it under the terms of the GNU General Public License, Version 2, June
00008 // 1991 as published by the Free Software Foundation. Redistribution
00009 // and/or modification of this program under the terms of any other
00010 // version of the GNU General Public License is not permitted.
00011 // 
00012 // This program is distributed in the hope that it will be useful, but
00013 // WITHOUT ANY WARRANTY; without even the implied warranty of
00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For more details,
00015 // see the GNU General Public License, Version 2, a copy of which can be
00016 // found in the XORP LICENSE.gpl file.
00017 // 
00018 // XORP Inc, 2953 Bunker Hill Lane, Suite 204, Santa Clara, CA 95054, USA;
00019 // http://xorp.net
00020 
00021 // $XORP: xorp/ospf/policy_varrw.hh,v 1.15 2008/10/02 21:57:48 bms Exp $
00022 
00023 #ifndef __OSPF_POLICY_VARRRW_HH__
00024 #define __OSPF_POLICY_VARRRW_HH__
00025 
00026 #include "policy/backend/single_varrw.hh"
00027 #include "policy/common/element_factory.hh"
00028 #include "policy/backend/policy_filters.hh"
00029 #include "policy/backend/policytags.hh"
00030 
00031 template <typename A>
00032 class OspfVarRW : public SingleVarRW {
00033  public:
00034     enum {
00035     VAR_NETWORK = VAR_PROTOCOL,
00036     VAR_NEXTHOP,
00037     VAR_METRIC,
00038     VAR_EBIT,
00039     };
00040 
00041     OspfVarRW(IPNet<A>& network, A& nexthop, uint32_t& metric, bool& e_bit,
00042           uint32_t& tag, bool& tag_set, PolicyTags& policytags);
00043 
00044     // SingleVarRW inteface:
00045     void    start_read();
00046     Element*    single_read(const Id& id);
00047     void    single_write(const Id& id, const Element& e);
00048 
00049  private:
00050     void start_read_common();
00051     void single_write_common(const Id& id, const Element& e);
00052 
00053     IPNet<A>&       _network;
00054     A&          _nexthop;
00055     uint32_t&       _metric;
00056     bool&       _e_bit;
00057     uint32_t&       _tag;
00058     bool&       _tag_set;
00059     PolicyTags&     _policytags;
00060     ElementFactory  _ef;
00061 };
00062 
00063 #endif // __OSPF_POLICY_VARRRW_HH__
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