/* * antnet.h * * 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. * * If you are using this program for any publication, we kindly request that you cite: * "Ant Colony Optimisation Based Routing on NS-2",  * V. Laxmi, Lavina Jain and M. S. Gaur,  * International Conference on Wireless Communication and Sensor Networks (WCSN),  * India, December 2006. * * 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: Lavina Jain * *//////////////////////////////////////////////////// \file antnet.h/// \brief Definition file for Agent Antnet////////////////////////////////////////////////#ifndef __antnet_h__#define __antnet_h__#include <agent.h>#include <node.h>#include <packet.h>#include <ip.h>#include <trace.h>#include <timer-handler.h>#include <random.h>#include <classifier-port.h>#include<tools/rng.h>#include "trace/cmu-trace.h"#include "tools/queue-monitor.h"#include "queue/drop-tail.h"#include "ant_pkt.h"#include "antnet_common.h"#include "antnet_rtable.h"#include "antnet_traffic.h"#include <map>#include <vector>#include <list>class Antnet;	// forward declaration/////////////////////////////////////////////////////////////////////////////////////// \brief Class to implement timer for interval between generation of forward ants///////////////////////////////////////////////////////////////////////////////////class Ant_timer: public TimerHandler {	public:		Ant_timer(Antnet* agent) : TimerHandler() {			agent_ = agent;		}	protected:		Antnet* agent_;		virtual void expire(Event* e);};////////////////////////////////////////////////// \brief Class to implement Antnet agent////// This agent implements AntNet algorithm///////////////////////////////////////////////class Antnet: public Agent {		friend class Ant_timer;		nsaddr_t ra_addr_;	///< address of the agent	antnet_rtable rtable_;	///< instance of routing table class	state_t state_;		///< local traffic model	window_t window_;	///< window of trip times to all destinations	u_int8_t ant_seq_num_;	///< sequence number for ant packets		// parameters that can be set from tcl script	// default values defined in ns-default.tcl	double r_factor_;	///< reinforcement factors	double timer_ant_;	///< interval between generation of forward ants	int num_nodes_;		///< total number ofnodes in topology	int num_nodes_x_;	///< number of nodes in row (only for regular mesh topology)	int num_nodes_y_;	///< number of nodes in column (only for regular mesh topology)		protected:		PortClassifier* dmux_;	///< for passing packets to agent		Trace* logtarget_;	///< for logging		Ant_timer ant_timer_;	///< timer for generation of ants				inline nsaddr_t& ra_addr() {return ra_addr_;}		inline int& num_nodes_x() {return num_nodes_x_;}		inline int& num_nodes_y() {return num_nodes_y_;}		inline u_int8_t& ant_seq_num() {return ant_seq_num_;}		inline state_t& state() {return state_;}		inline window_t& window() {return window_;}		void reset_ant_timer();		///< reset ant timer		void send_ant_pkt();		///< generate forward ant		void recv_ant_pkt(Packet*);	///< recieve an ant packet		void create_backward_ant_pkt(Packet*);	///< generate backward ant		void forward_ant_pkt(Packet*);		///< send a forward ant to next hop as per AntNet algorithm		void backward_ant_pkt(Packet*);		///< send a backward ant to next hop as per AntNet algorithm		void memorize(Packet*);		///< add visited node to memory of forward ant		void update_table(Packet*);	///< update routing table		void update_traffic(Packet*);	///< update traffic model				/// print neighbors of a node		// implemented to test and debug		void print_neighbors();		/// add two nodes to each other's neighbor list (assuming duplex link)		void add_Neighbor(Node* node1, Node* node2);				void initialize_rtable();	///< initialize routing table		int get_win_size(nsaddr_t dest);///< return size of observation window			public:		Antnet(nsaddr_t);	///< Constructor		int command(int , const char*const*);	///< interface for tcl commands		void recv(Packet*, Handler*);		///< method to handle packet recieve events at the Agent};#endif