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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2011 Bucknell University
 *
 * 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: L. Felipe Perrone (perrone@bucknell.edu)
 *          Tiago G. Rodrigues (tgr002@bucknell.edu)
 */

#ifndef PROBE_H
#define PROBE_H

#include "ns3/data-collection-object.h"
#include "ns3/nstime.h"

namespace ns3 {

/**
 * \ingroup probes
 *
 * Base class for probes.
 *
 * This class provides general functionality to control each
 * probe and the data generated by it.
 */

class Probe : public DataCollectionObject
{
public:
  /**
   * \brief Get the type ID.
   * \return the object TypeId
   */
  static TypeId GetTypeId ();
  Probe ();
  virtual ~Probe ();

  /**
   * \return true if Probe is currently enabled
   */
  virtual bool IsEnabled (void) const;

  /**
   * \brief connect to a trace source attribute provided by a given object
   *
   * \param traceSource the name of the attribute TraceSource to connect to
   * \param obj ns3::Object to connect to
   * \return true if the trace source was successfully connected
   */
  virtual bool ConnectByObject (std::string traceSource, Ptr<Object> obj) = 0;

  /**
   * \brief connect to a trace source provided by a config path
   *
   * \param path Config path to bind to
   *
   * Note, if an invalid path is provided, the probe will not be connected
   * to anything.
   */
  virtual void ConnectByPath (std::string path) = 0;

protected:
  /// Time when logging starts.
  Time m_start;

  /// Time when logging stops.
  Time m_stop;

};

} // namespace ns3

#endif // PROBE_H