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

/*

 * Copyright (c) 2007 INRIA, Gustavo Carneiro

 *

 * 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

 *

 * Authors: Gustavo Carneiro <gjcarneiro@gmail.com>,

 *          Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

 */

#ifndef INTERFACE_OBJECT_H

#define INTERFACE_OBJECT_H

#include <stdint.h>

#include <string>

#include "ptr.h"

namespace ns3 {

class MyInterfaceId

{

public:

  static MyInterfaceId LookupByName (std::string name);

  static MyInterfaceId LookupParent (MyInterfaceId iid);

private:

  MyInterfaceId (uint32_t iid);

  friend MyInterfaceId MakeInterfaceId (std::string name, const MyInterfaceId &parent);

  friend MyInterfaceId MakeObjectInterfaceId (void);

  friend class AggregateObject;

  friend bool operator == (const MyInterfaceId &a, const MyInterfaceId &b);

  friend bool operator != (const MyInterfaceId &a, const MyInterfaceId &b);

  uint32_t m_iid;

};

MyInterfaceId

MakeInterfaceId (std::string name, const MyInterfaceId &parent);

class AggregateObject;

class InterfaceObject

{

public:

  static const MyInterfaceId iid;

  InterfaceObject ();

  virtual ~InterfaceObject ();

  template <typename T>

  Ptr<T> QueryInterface (MyInterfaceId iid);

  void Dispose (void);

  void Add (Ptr<InterfaceObject> other);

protected:

  void SetInterfaceId (MyInterfaceId iid);

private:

  friend class AggregateObject;

  virtual void DoDispose (void);

  Ptr<InterfaceObject> DoQueryInterface (MyInterfaceId iid);

  bool Check (void);

  uint32_t m_count;

  MyInterfaceId m_iid;

  AggregateObject *m_aggregate;

};

} // namespace ns3

namespace ns3 {

template <typename T>

Ptr<T> 

InterfaceObject::QueryInterface (MyInterfaceId iid)

{

  Ptr<InterfaceObject> found = DoQueryInterface (iid);

  if (found != 0)

    {

      return Ptr<T> (dynamic_cast<T *> (PeekPointer (found)));

    }

  return 0;

}

} // namespace ns3

#endif /* INTERFACE_OBJECT_H */