#ifndef IPV4_INTERFACE_CONTAINER_H

#define IPV4_INTERFACE_CONTAINER_H

#include <stdint.h>

#include <vector>

#include "ns3/ipv4.h"

#include "ns3/ipv4-address.h"

namespace ns3 {

/**

 * \brief keep track of a set of ipv4 interfaces.

 *

 */

class Ipv4InterfaceContainer

{

public:

  /**

   * Create an empty Ipv4InterfaceContainer.

   */

  Ipv4InterfaceContainer ();

  /**

   * Concatenate the entries in the other container with ours.

   */

  void Add (Ipv4InterfaceContainer other);

  /**

   * \returns the number of interfaces stored in this Ipv4InterfaceContainer.

   */

  uint32_t GetN (void) const;

  /**

   * \returns the IPv4 address of the j'th address of the interface

   *  corresponding to index i.

   * 

   * If the second parameter is omitted, the zeroth indexed address of 

   * the interface is returned.  Unless IP aliaising is being used on

   * the interface, the second parameter may typically be omitted.

   */

  Ipv4Address GetAddress (uint32_t i, uint32_t j = 0) const;

  void SetMetric (uint32_t i, uint16_t metric);

  /**

   * \param ipv4 pointer to Ipv4 object

   * \param interface interface index of the Ipv4Interface to add to the container

   */

  void Add (Ptr<Ipv4> ipv4, uint32_t interface);

  void Add (std::string ipv4Name, uint32_t interface);

 private:

  typedef std::vector<std::pair<Ptr<Ipv4>,uint32_t> > InterfaceVector;

  InterfaceVector m_interfaces;

};

} // namespace ns3

#endif /* IPV4_INTERFACE_CONTAINER_H */