/usr/include/ns3.26/ns3/trailer.h is in libns3-dev 3.26+dfsg-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2005 INRIA
*
* 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
*/
#ifndef TRAILER_H
#define TRAILER_H
#include "chunk.h"
#include "buffer.h"
#include <stdint.h>
namespace ns3 {
/**
* \ingroup packet
*
* \brief Protocol trailer serialization and deserialization.
*
* Every Protocol trailer which needs to be inserted or removed
* from a Packet instance must derive from this base class and
* implement the pure virtual methods defined here.
*/
class Trailer : public Chunk
{
public:
/**
* \brief Get the type ID.
* \return the object TypeId
*/
static TypeId GetTypeId (void);
virtual ~Trailer ();
/**
* \returns the expected size of the trailer.
*
* This method is used by Packet::AddTrailer
* to store a trailer into the byte buffer of a packet. This method
* should return the number of bytes which are needed to store
* the full trailer data by Serialize.
*/
virtual uint32_t GetSerializedSize (void) const = 0;
/**
* \param start an iterator which points to where the trailer
* should be written.
*
* This method is used by Packet::AddTrailer to
* store a header into the byte buffer of a packet.
* The data written is expected to match bit-for-bit the
* representation of this trailer in real networks.
* The input iterator points to the end of the area where the
* data shall be written. This method is thus expected to call
* Buffer::Iterator::Prev prior to actually writing any data.
*/
virtual void Serialize (Buffer::Iterator start) const = 0;
/**
* \param end an iterator which points to the end of the buffer
* where the trailer should be read from.
* \returns the number of bytes read.
*
* This method is used by Packet::RemoveTrailer to
* re-create a trailer from the byte buffer of a packet.
* The data read is expected to match bit-for-bit the
* representation of this trailer in real networks.
* The input iterator points to the end of the area where the
* data shall be written. This method is thus expected to call
* Buffer::Iterator::Prev prio to actually reading any data.
*/
virtual uint32_t Deserialize (Buffer::Iterator end) = 0;
/**
* \param os output stream
* This method is used by Packet::Print to print the
* content of a trailer as ascii data to a c++ output stream.
* Although the trailer is free to format its output as it
* wishes, it is recommended to follow a few rules to integrate
* with the packet pretty printer: start with flags, small field
* values located between a pair of parens. Values should be separated
* by whitespace. Follow the parens with the important fields,
* separated by whitespace.
* i.e.: (field1 val1 field2 val2 field3 val3) field4 val4 field5 val5
*/
virtual void Print (std::ostream &os) const = 0;
};
/**
* \brief Stream insertion operator.
*
* \param os the stream
* \param trailer the trailer
* \returns a reference to the stream
*/
std::ostream & operator << (std::ostream &os, const Trailer &trailer);
} // namespace ns3
#endif /* TRAILER_H */
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