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/*!
* \file
* \brief Definition of a Packet generator class
* \author Anders Persson and Tony Ottosson
*
* -------------------------------------------------------------------------
*
* IT++ - C++ library of mathematical, signal processing, speech processing,
* and communications classes and functions
*
* Copyright (C) 1995-2008 (see AUTHORS file for a list of contributors)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* -------------------------------------------------------------------------
*/
#ifndef PACKET_GENERATOR_H
#define PACKET_GENERATOR_H
#include <itpp/protocol/packet.h>
#include <itpp/base/random.h>
namespace itpp {
//! \addtogroup protocol
//@{
/*! ADD DOCUMENTATION HERE
*/
class Packet_Generator {
public:
//! ADD DOCUMENTATION HERE
Packet_Generator(const int Packet_size = 150, const unsigned long int Max_packets = 0);
//! ADD DOCUMENTATION HERE
virtual ~Packet_Generator();
//! ADD DOCUMENTATION HERE
Signal<Packet*> output;
//! ADD DOCUMENTATION HERE
Slot<Packet_Generator, bool> start;
//! ADD DOCUMENTATION HERE
void set_parameters(const int Packet_size, const unsigned long int Max_packets);
//! ADD DOCUMENTATION HERE
int get_packet_size();
//! ADD DOCUMENTATION HERE
int get_max_packets();
protected:
//! ADD DOCUMENTATION HERE
virtual Ttype delta_t() = 0;
private:
Slot<Packet_Generator, Packet*> next;
void handle_next(Packet*);
void handle_start(const bool run);
bool keep_running;
unsigned long int id;
int packet_size;
unsigned long int max_packets;
};
/*! ADD DOCUMENTATION HERE
*/
class Poisson_Packet_Generator : public Packet_Generator {
public:
//! ADD DOCUMENTATION HERE
Poisson_Packet_Generator(const double Avg_bit_rate = 1.0, const int Packet_size = 150, const unsigned long int Max_packets = 0);
//! ADD DOCUMENTATION HERE
virtual ~Poisson_Packet_Generator();
//! ADD DOCUMENTATION HERE
void set_parameters(const double Avg_bit_rate, const int Packet_size, const unsigned long int Max_packets);
//! ADD DOCUMENTATION HERE
double get_avg_bit_rate();
protected:
//! ADD DOCUMENTATION HERE
virtual Ttype delta_t();
//! ADD DOCUMENTATION HERE
double avg_delta_t;
//! ADD DOCUMENTATION HERE
double avg_bit_rate;
//! ADD DOCUMENTATION HERE
Exponential_RNG ee;
};
/*! ADD DOCUMENTATION HERE
*/
class Constant_Rate_Packet_Generator : public Poisson_Packet_Generator {
public:
//! ADD DOCUMENTATION HERE
Constant_Rate_Packet_Generator(const double Avg_bit_rate = 1.0, const int Packet_size = 150, const unsigned long int Max_packets = 0);
//! ADD DOCUMENTATION HERE
virtual ~Constant_Rate_Packet_Generator();
protected:
//! ADD DOCUMENTATION HERE
virtual Ttype delta_t();
};
/*! ADD DOCUMENTATION HERE
*/
class Burst_WWW_Packet_Generator : public Poisson_Packet_Generator {
public:
//! ADD DOCUMENTATION HERE
Burst_WWW_Packet_Generator(const double Avg_bit_rate = 1.0, const int Packet_size = 150, const int Max_packets = 0);
//! ADD DOCUMENTATION HERE
virtual ~Burst_WWW_Packet_Generator();
protected:
//! ADD DOCUMENTATION HERE
virtual Ttype delta_t();
//! ADD DOCUMENTATION HERE
int N;
//! ADD DOCUMENTATION HERE
int Navg;
//! ADD DOCUMENTATION HERE
double Ti;
//! ADD DOCUMENTATION HERE
double Tr;
};
/*! ADD DOCUMENTATION HERE
*/
class Sink {
public:
//! ADD DOCUMENTATION HERE
Sink(const unsigned long int Max_packets = 1000);
//! ADD DOCUMENTATION HERE
~Sink();
// -- Slots -- //
//! ADD DOCUMENTATION HERE
Slot<Sink, Packet*> packet_input;
private:
void handle_packet_input(Packet* packet);
unsigned long int Ncp;
unsigned long int Nbytes;
unsigned long int max_packets;
Ttype start_time;
};
//@}
} // namespace itpp
#endif // #ifndef PACKET_GENERATOR_H
|
