A Discrete-Event Network Simulator
API
ipv6-queue-disc-item.h
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3  * Copyright (c) 2016 Universita' degli Studi di Napoli Federico II
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18 
19 #ifndef IPV6_QUEUE_DISC_ITEM_H
20 #define IPV6_QUEUE_DISC_ITEM_H
21 
22 #include "ns3/packet.h"
23 #include "ns3/queue-item.h"
24 #include "ipv6-header.h"
25 
26 namespace ns3 {
27 
37 public:
45  Ipv6QueueDiscItem (Ptr<Packet> p, const Address & addr, uint16_t protocol, const Ipv6Header & header);
46 
47  virtual ~Ipv6QueueDiscItem ();
48 
49  // Delete default constructor, copy constructor and assignment operator to avoid misuse
50  Ipv6QueueDiscItem () = delete;
53 
57  virtual uint32_t GetSize (void) const;
58 
62  const Ipv6Header & GetHeader (void) const;
63 
67  virtual void AddHeader (void);
68 
73  virtual void Print (std::ostream &os) const;
74 
75  /*
76  * The values for the fields of the Ipv6 header are taken from m_header and
77  * thus might differ from those present in the packet in case the header is
78  * modified after being added to the packet. However, this function is likely
79  * to be called before the header is added to the packet (i.e., before the
80  * packet is dequeued from the queue disc)
81  */
82  virtual bool GetUint8Value (Uint8Values field, uint8_t &value) const;
83 
89  virtual bool Mark (void);
90 
101  virtual uint32_t Hash (uint32_t perturbation) const;
102 
103 private:
106 };
107 
108 } // namespace ns3
109 
110 #endif /* IPV6_QUEUE_DISC_ITEM_H */
a polymophic address class
Definition: address.h:91
Packet header for IPv6.
Definition: ipv6-header.h:36
Ipv6QueueDiscItem is a subclass of QueueDiscItem which stores IPv6 packets.
virtual void AddHeader(void)
Add the header to the packet.
Ipv6QueueDiscItem(const Ipv6QueueDiscItem &)=delete
Ipv6Header m_header
The IPv6 header.
virtual uint32_t Hash(uint32_t perturbation) const
Computes the hash of the packet's 5-tuple.
const Ipv6Header & GetHeader(void) const
virtual bool GetUint8Value(Uint8Values field, uint8_t &value) const
Retrieve the value of a given field from the packet, if present.
virtual bool Mark(void)
Marks the packet by setting ECN_CE bits if the packet has ECN_ECT0 or ECN_ECT1 set.
virtual void Print(std::ostream &os) const
Print the item contents.
Ipv6QueueDiscItem & operator=(const Ipv6QueueDiscItem &)=delete
bool m_headerAdded
True if the header has already been added to the packet.
virtual uint32_t GetSize(void) const
QueueDiscItem is the abstract base class for items that are stored in a queue disc.
Definition: queue-item.h:133
Uint8Values
1-byte fields of the packet whose value can be retrieved, if present
Definition: queue-item.h:82
Every class exported by the ns3 library is enclosed in the ns3 namespace.