/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */

/*

 * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)

 *

 * 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: Manuel Requena <manuel.requena@cttc.es>

 */

#ifndef LTE_RLC_SDU_STATUS_TAG_H

#define LTE_RLC_SDU_STATUS_TAG_H

#include "ns3/tag.h"

namespace ns3 {

/**

 * \brief This class implements a tag that carries the status of a RLC SDU

 * for the fragmentation process

 * Status of RLC SDU

 */

class LteRlcSduStatusTag : public Tag

{

public:

  LteRlcSduStatusTag ();

  void SetStatus (uint8_t status);

  uint8_t GetStatus (void) const;

  static TypeId GetTypeId (void);

  virtual TypeId GetInstanceTypeId (void) const;

  virtual uint32_t GetSerializedSize (void) const;

  virtual void Serialize (TagBuffer i) const;

  virtual void Deserialize (TagBuffer i);

  virtual void Print (std::ostream &os) const;

  typedef enum { FULL_SDU       = 1,

                 FIRST_SEGMENT  = 2,

                 MIDDLE_SEGMENT = 3,

                 LAST_SEGMENT   = 4,

                 ANY_SEGMENT    = 5 } SduStatus_t;

private:

  uint8_t m_sduStatus;

};

}; // namespace ns3

#endif // LTE_RLC_SDU_STATUS_TAG_H