flame-rtable.h

Go to the documentation of this file.

/*
 * Copyright (c) 2009 IITP RAS
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * 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.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Kirill Andreev <andreev@iitp.ru>
 */
 
#ifndef FLAME_RTABLE_H
#define FLAME_RTABLE_H
 
#include "ns3/mac48-address.h"
#include "ns3/nstime.h"
#include "ns3/object.h"
 
#include <map>
 
namespace ns3
{
namespace flame
{
class FlameRtable : public Object
{
  public:
    const static uint32_t INTERFACE_ANY = 0xffffffff;
    const static uint32_t MAX_COST = 0xff;
 
    struct LookupResult
    {
        Mac48Address retransmitter; 
        uint32_t ifIndex;           
        uint8_t cost;               
        uint16_t seqnum;            
 
        LookupResult(Mac48Address r = Mac48Address::GetBroadcast(),
                     uint32_t i = INTERFACE_ANY,
                     uint8_t c = MAX_COST,
                     uint16_t s = 0)
            : retransmitter(r),
              ifIndex(i),
              cost(c),
              seqnum(s)
        {
        }
 
        bool IsValid() const;
        bool operator==(const LookupResult& o) const;
    };
 
  public:
    static TypeId GetTypeId();
 
    FlameRtable();
    ~FlameRtable() override;
 
    // Delete copy constructor and assignment operator to avoid misuse
    FlameRtable(const FlameRtable&) = delete;
    FlameRtable& operator=(const FlameRtable&) = delete;
 
    void DoDispose() override;
 
    void AddPath(const Mac48Address destination,
                 const Mac48Address retransmitter,
                 const uint32_t interface,
                 const uint8_t cost,
                 const uint16_t seqnum);
    LookupResult Lookup(Mac48Address destination);
 
  private:
    struct Route
    {
        Mac48Address retransmitter; 
        uint32_t interface;         
        uint32_t cost;              
        Time whenExpire;            
        uint32_t seqnum;            
    };
 
    Time m_lifetime;
    std::map<Mac48Address, Route> m_routes;
};
 
} // namespace flame
} // namespace ns3
#endif /* FLAME_PROTOCOL_H */