queue-item.h

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/*
 * Copyright (c) 2016 Universita' degli Studi di Napoli Federico II
 *
 * 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: Stefano Avallone <stefano.avallone@unina.it>
 */
#ifndef QUEUE_ITEM_H
#define QUEUE_ITEM_H
 
#include "ns3/nstime.h"
#include "ns3/ptr.h"
#include "ns3/simple-ref-count.h"
#include <ns3/address.h>
 
namespace ns3
{
 
class Packet;
 
class QueueItem : public SimpleRefCount<QueueItem>
{
  public:
    QueueItem(Ptr<Packet> p);
 
    virtual ~QueueItem();
 
    // Delete default constructor, copy constructor and assignment operator to avoid misuse
    QueueItem() = delete;
    QueueItem(const QueueItem&) = delete;
    QueueItem& operator=(const QueueItem&) = delete;
 
    Ptr<Packet> GetPacket() const;
 
    virtual uint32_t GetSize() const;
 
    enum Uint8Values
    {
        IP_DSFIELD
    };
 
    virtual bool GetUint8Value(Uint8Values field, uint8_t& value) const;
 
    virtual void Print(std::ostream& os) const;
 
    typedef void (*TracedCallback)(Ptr<const QueueItem> item);
 
  private:
    Ptr<Packet> m_packet;
};
 
std::ostream& operator<<(std::ostream& os, const QueueItem& item);
 
class QueueDiscItem : public QueueItem
{
  public:
    QueueDiscItem(Ptr<Packet> p, const Address& addr, uint16_t protocol);
 
    ~QueueDiscItem() override;
 
    // Delete default constructor, copy constructor and assignment operator to avoid misuse
    QueueDiscItem() = delete;
    QueueDiscItem(const QueueDiscItem&) = delete;
    QueueDiscItem& operator=(const QueueDiscItem&) = delete;
 
    Address GetAddress() const;
 
    uint16_t GetProtocol() const;
 
    uint8_t GetTxQueueIndex() const;
 
    void SetTxQueueIndex(uint8_t txq);
 
    Time GetTimeStamp() const;
 
    void SetTimeStamp(Time t);
 
    virtual void AddHeader() = 0;
 
    void Print(std::ostream& os) const override;
 
    virtual bool Mark() = 0;
 
    virtual uint32_t Hash(uint32_t perturbation = 0) const;
 
  private:
    Address m_address;   
    uint16_t m_protocol; 
    uint8_t m_txq;       
    Time m_tstamp;       
};
 
} // namespace ns3
 
#endif /* QUEUE_ITEM_H */