three-gpp-http-client.h

Go to the documentation of this file.

/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2013 Magister Solutions
 *
 * 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: Budiarto Herman <budiarto.herman@magister.fi>
 *
 */
 
#ifndef THREE_GPP_HTTP_CLIENT_H
#define THREE_GPP_HTTP_CLIENT_H
 
#include <ns3/application.h>
#include <ns3/address.h>
#include <ns3/traced-callback.h>
#include <ns3/three-gpp-http-header.h>
 
 
namespace ns3 {
 
 
class Socket;
class Packet;
class ThreeGppHttpVariables;
 
 
class ThreeGppHttpClient : public Application
{
public:
  ThreeGppHttpClient ();
 
  static TypeId GetTypeId ();
 
  Ptr<Socket> GetSocket () const;
 
  enum State_t
  {
    NOT_STARTED = 0,
    CONNECTING,
    EXPECTING_MAIN_OBJECT,
    PARSING_MAIN_OBJECT,
    EXPECTING_EMBEDDED_OBJECT,
    READING,
    STOPPED
  };
 
  State_t GetState () const;
 
  std::string GetStateString () const;
 
  static std::string GetStateString (State_t state);
 
  typedef void (*TracedCallback)(Ptr<const ThreeGppHttpClient> httpClient);
 
protected:
  // Inherited from Object base class.
  virtual void DoDispose ();
 
  // Inherited from Application base class.
  virtual void StartApplication ();
  virtual void StopApplication ();
 
private:
  // SOCKET CALLBACK METHODS
 
  void ConnectionSucceededCallback (Ptr<Socket> socket);
  void ConnectionFailedCallback (Ptr<Socket> socket);
  void NormalCloseCallback (Ptr<Socket> socket);
  void ErrorCloseCallback (Ptr<Socket> socket);
  void ReceivedDataCallback (Ptr<Socket> socket);
 
  // CONNECTION-RELATED METHOD
 
  void OpenConnection ();
 
  // TX-RELATED METHODS
 
  void RequestMainObject ();
  void RequestEmbeddedObject ();
 
  // RX-RELATED METHODS
 
  void ReceiveMainObject (Ptr<Packet> packet, const Address &from);
  void ReceiveEmbeddedObject (Ptr<Packet> packet, const Address &from);
  void Receive (Ptr<Packet> packet);
 
  // OFF-TIME-RELATED METHODS
 
  void EnterParsingTime ();
  void ParseMainObject ();
  void EnterReadingTime ();
  void CancelAllPendingEvents ();
 
  void SwitchToState (State_t state);
 
  State_t      m_state;
  Ptr<Socket>  m_socket;
  uint32_t     m_objectBytesToBeReceived;
  Ptr<Packet>  m_constructedPacket;
  Time         m_objectClientTs;
  Time         m_objectServerTs;
  uint32_t     m_embeddedObjectsToBeRequested;
 
  // ATTRIBUTES
 
  Ptr<ThreeGppHttpVariables>    m_httpVariables;
  Address                               m_remoteServerAddress;
  uint16_t                              m_remoteServerPort;
 
  // TRACE SOURCES
 
  ns3::TracedCallback<Ptr<const ThreeGppHttpClient> > m_connectionEstablishedTrace;
  ns3::TracedCallback<Ptr<const ThreeGppHttpClient> > m_connectionClosedTrace;
  ns3::TracedCallback<Ptr<const Packet> >   m_txTrace;
  ns3::TracedCallback<Ptr<const Packet> >     m_txMainObjectRequestTrace;
  ns3::TracedCallback<Ptr<const Packet> >     m_txEmbeddedObjectRequestTrace;
  ns3::TracedCallback<Ptr<const Packet> >     m_rxMainObjectPacketTrace;
  ns3::TracedCallback<Ptr<const ThreeGppHttpClient>, Ptr<const Packet>  > m_rxMainObjectTrace;
  ns3::TracedCallback<Ptr<const Packet> >     m_rxEmbeddedObjectPacketTrace;
  ns3::TracedCallback<Ptr<const ThreeGppHttpClient>, Ptr<const Packet> > m_rxEmbeddedObjectTrace;
  ns3::TracedCallback<Ptr<const Packet>, const Address &> m_rxTrace;
  ns3::TracedCallback<const Time &, const Address &>  m_rxDelayTrace;
  ns3::TracedCallback<const Time &, const Address &>  m_rxRttTrace;
  ns3::TracedCallback<const std::string &, const std::string &> m_stateTransitionTrace;
 
  // EVENTS
 
  EventId m_eventRequestMainObject;
  EventId m_eventRequestEmbeddedObject;
  EventId m_eventParseMainObject;
 
}; // end of `class ThreeGppHttpClient`
 
 
}  // end of `namespace ns3`
 
 
#endif /* THREE_GPP_HTTP_CLIENT_H */