121 lines
2.8 KiB
C++
121 lines
2.8 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2006,2007 INRIA
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*/
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#include "ns3/tag.h"
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#include "ns3/packet.h"
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#include "ns3/uinteger.h"
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#include <iostream>
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using namespace ns3;
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// define this class in a public header
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class MyTag : public Tag
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{
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public:
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static TypeId GetTypeId (void);
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virtual TypeId GetInstanceTypeId (void) const;
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virtual uint32_t GetSerializedSize (void) const;
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virtual void Serialize (TagBuffer i) const;
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virtual void Deserialize (TagBuffer i);
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virtual void Print (std::ostream &os) const;
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// these are our accessors to our tag structure
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void SetSimpleValue (uint8_t value);
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uint8_t GetSimpleValue (void) const;
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private:
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uint8_t m_simpleValue;
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};
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TypeId
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MyTag::GetTypeId (void)
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{
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static TypeId tid = TypeId ("ns3::MyTag")
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.SetParent<Tag> ()
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.AddConstructor<MyTag> ()
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.AddAttribute ("SimpleValue",
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"A simple value",
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EmptyAttributeValue (),
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MakeUintegerAccessor (&MyTag::GetSimpleValue),
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MakeUintegerChecker<uint8_t> ())
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;
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return tid;
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}
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TypeId
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MyTag::GetInstanceTypeId (void) const
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{
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return GetTypeId ();
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}
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uint32_t
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MyTag::GetSerializedSize (void) const
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{
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return 1;
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}
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void
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MyTag::Serialize (TagBuffer i) const
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{
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i.WriteU8 (m_simpleValue);
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}
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void
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MyTag::Deserialize (TagBuffer i)
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{
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m_simpleValue = i.ReadU8 ();
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}
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void
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MyTag::Print (std::ostream &os) const
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{
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os << "v=" << (uint32_t)m_simpleValue;
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}
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void
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MyTag::SetSimpleValue (uint8_t value)
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{
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m_simpleValue = value;
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}
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uint8_t
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MyTag::GetSimpleValue (void) const
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{
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return m_simpleValue;
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}
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int main (int argc, char *argv[])
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{
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// create a tag.
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MyTag tag;
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tag.SetSimpleValue (0x56);
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// store the tag in a packet.
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Ptr<Packet> p = Create<Packet> (100);
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p->AddTag (tag);
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// create a copy of the packet
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Ptr<Packet> aCopy = p->Copy ();
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// read the tag from the packet copy
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MyTag tagCopy;
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p->FindFirstMatchingTag (tagCopy);
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// the copy and the original are the same !
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NS_ASSERT (tagCopy.GetSimpleValue () == tag.GetSimpleValue ());
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aCopy->PrintTags (std::cout);
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std::cout << std::endl;
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return 0;
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}
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