src/common/packet.h
author Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
Tue, 05 Sep 2006 13:18:11 +0200
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/* -*-    Mode:C++; c-basic-offset:4; tab-width:4; indent-tabs-mode:f -*- */
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/*
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 * Copyright (c) 2005,2006 INRIA
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 * All rights reserved.
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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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#ifndef PACKET_H
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#define PACKET_H
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#include <stdint.h>
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#include "buffer.h"
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#include "chunk.h"
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#include "tags.h"
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#include "ns3/callback.h"
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namespace ns3 {
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class Packet {
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public:
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    typedef Callback<void,uint8_t *,uint32_t> PacketReadWriteCallback;
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    Packet ();
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    Packet (uint32_t size);
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    Packet createFragment (uint32_t start, uint32_t length) const;
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    uint32_t getSize (void) const;
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    void add (Chunk *chunk);
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    void peek (Chunk *chunk) const;
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    void remove (Chunk *chunk);
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    template <typename T>
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    void addTag (T const *tag);
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    template <typename T>
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    bool removeTag (T *tag);
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    bool peekTag (T *tag) const;
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    template <typename T>
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    bool updateTag (T const*tag);
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    void removeAllTags (void);
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    void write (PacketReadWriteCallback callback) const;
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    void addAtEnd (Packet packet);
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    void addAtEnd (Packet packet, uint32_t offset, uint32_t size);
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    void removeAtEnd (uint32_t size);
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    void removeAtStart (uint32_t size);
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private:
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    Packet (Buffer buffer, Tags tags);
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    Buffer m_buffer;
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    Tags m_tags;
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};
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}; // namespace ns3
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namespace ns3 {
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template <typename T>
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void Packet::addTag (T const*tag)
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{
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    m_tags.add (tag);
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}
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template <typename T>
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bool Packet::removeTag (T *tag)
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{
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    return m_tags.remove (tag);
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}
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bool Packet::peekTag (T *tag) const
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{
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    return m_tags.peek (tag);
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}
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template <typename T>
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bool Packet::updateTag (T const*tag)
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{
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    return m_tags.update (tag);
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}
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}; // namespace ns3
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#endif /* PACKET_H */