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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2006 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 STATUS_CODE_H
#define STATUS_CODE_H

#include <stdint.h>
#include <ostream>
#include "ns3/buffer.h"

namespace ns3 {

/**
 * Status code for association response.
 */
class StatusCode
{
public:
  StatusCode ();
  /**
   * Set success bit to 0 (success).
   */
  void SetSuccess (void);
  /**
   * Set success bit to 1 (failure).
   */
  void SetFailure (void);

  /**
   * Return whether the status code is success.
   *
   * \return true if success,
   *         false otherwise
   */
  bool IsSuccess (void) const;

  /**
   * \returns the expected size of the status code.
   *
   * This method should return the number of bytes which are needed to store
   * the status code data by Serialize.
   */
  uint32_t GetSerializedSize (void) const;
  /**
   * \param start an iterator which points to where the status code should be written
   *
   * \return Buffer::Iterator
   *
   * This method is used to store a status code into the byte buffer.
   * The data written is expected to match bit-for-bit the representation of this
   * header in a real network.
   */
  Buffer::Iterator Serialize (Buffer::Iterator start) const;
  /**
   * \param start an iterator which points to where the status code should be read.
   *
   * \returns the number of bytes read.
   *
   * This method is used to re-create a status code from the byte buffer.
   * The data read is expected to match bit-for-bit the representation of this
   * header in real networks.
   */
  Buffer::Iterator Deserialize (Buffer::Iterator start);


private:
  uint16_t m_code;
};

std::ostream &operator << (std::ostream &os, const StatusCode &code);

} //namespace ns3

#endif /* STATUS_CODE_H */