ipv6-pmtu-cache.h

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/*
 * Copyright (c) 2013 Universita' di Firenze
 *
 * 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: Tommaso Pecorella <tommaso.pecorella@unifi.it>
 */
 
#ifndef IPV6_PMTU_CACHE_H
#define IPV6_PMTU_CACHE_H
 
#include "ns3/event-id.h"
#include "ns3/ipv6-address.h"
#include "ns3/nstime.h"
#include "ns3/object.h"
#include "ns3/type-id.h"
 
#include <map>
 
namespace ns3
{
 
class Ipv6PmtuCache : public Object
{
  public:
    class Entry;
 
    static TypeId GetTypeId();
 
    Ipv6PmtuCache();
 
    ~Ipv6PmtuCache() override;
 
    void DoDispose() override;
 
    uint32_t GetPmtu(Ipv6Address dst);
 
    void SetPmtu(Ipv6Address dst, uint32_t pmtu);
 
    Time GetPmtuValidityTime() const;
 
    bool SetPmtuValidityTime(Time validity);
 
  private:
    void ClearPmtu(Ipv6Address dst);
 
    std::map<Ipv6Address, uint32_t> m_pathMtu;
 
    typedef std::map<Ipv6Address, EventId>::iterator pathMtuTimerIter;
 
    std::map<Ipv6Address, EventId> m_pathMtuTimer;
 
    Time m_validityTime;
};
 
} // namespace ns3
 
#endif /* IPV6_PMTU_CACHE_H */