app-packet.h

模拟器提供了一个简单易用的平台

/**************************************************
 *
  File: app-packet.h
  Author: Suman Banerjee <[e-mail]>
  Date: 15th March, 2001
  Terms: GPL

  Narada implementation in myns

  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.  
 *
**************************************************/

#ifndef _APP_PACKET_H_
#define _APP_PACKET_H_

#include <stdlib.h>
#include <packet.h>
#include <agent.h>
#include <constants.h>

#define MAX_RET_NBRS 10
#define MAXMMARRAYSIZE 600

extern NamedConstant maxmeshmembers;
#define MAXMESHMEMBERS (maxmeshmembers.getval().u.i)

enum AppPacketSubType {

  PING_RP,
  PING_RP_RESPONSE,
  MESH_NEIGHBOR_SETUP_REQUEST,
  MESH_NEIGHBOR_SETUP_RESPONSE,
  MESH_NEIGHBOR_REFRESH,	
  //sri's code
  MESH_LINK_ADD,
  MESH_LINK_ADD_RESPONSE,
  MESH_LINK_DROP,
  MESH_RT_EXCHANGE,
  DATA
  //
};

struct ping_rp_pkt {

  int seek_nbr_cnt;
  // ping_rp_pkt (int s) { seek_nbr_cnt = s;}
};

struct PacketAgentInfo {

  int agent_id;
  int node_id;
};

struct ping_rp_response_pkt {

   int ret_nbr_cnt;
   PacketAgentInfo ret_nbrs[MAX_RET_NBRS];
};

struct mesh_neighbor_setup_req_pkt {
};

struct mesh_neighbor_setup_resp_pkt {
  bool accept;
};

struct mesh_neighbor_refresh_pkt {

  int neighbor_seq_no;
  bool is_alive;
  PacketAgentInfo origin;
  int origin_seq_no;
};

//sri's code
struct mesh_rt_exchange_pkt {

/*
  bool valid[MAXMMARRAYSIZE]; 
  int pathlen[MAXMMARRAYSIZE]; 
  struct AgentInfo *path[MAXMMARRAYSIZE]; 
  double cost[MAXMMARRAYSIZE]; 
*/

  bool * valid; 
  int * pathlen; 
  struct AgentInfo ** path; 
  double * cost; 
};

struct data_pkt {
  
  long seq_no; 
  int src_agent_id; 
  int src_node_id; 

}; 
//

class AppPacket : public Packet {

public :

  AppPacketSubType st;
  union {

    ping_rp_pkt ping_p;
    ping_rp_response_pkt pingresp_p;
    mesh_neighbor_setup_req_pkt meshneighborsetupreq_p;
    mesh_neighbor_setup_resp_pkt meshneighborsetupresp_p;
    mesh_neighbor_refresh_pkt meshrefresh_p;
    // sri's code
    mesh_rt_exchange_pkt meshrt_p; 
    data_pkt data_p; 
  //
  } u;

  AppPacket (AppPacketSubType St) : Packet() { t = PACKET_APP; st = St; };
  

  ~AppPacket (void) {
  
    switch (st) {
    
      case MESH_RT_EXCHANGE: 
        
        for(int i = 0; i < MAXMESHMEMBERS; i++) 
          if ((u.meshrt_p.valid[i]) && (u.meshrt_p.pathlen[i] > 1)) 
            free(u.meshrt_p.path[i]);
        
        delete[] u.meshrt_p.path;
        delete[] u.meshrt_p.valid;
        delete[] u.meshrt_p.pathlen; 
        delete[] u.meshrt_p.cost;
        break; 

      case MESH_LINK_ADD_RESPONSE: 
        
        for(int i = 0; i < MAXMESHMEMBERS; i++) 
          if ((u.meshrt_p.valid[i]) && (u.meshrt_p.pathlen[i] > 1)) 
            free(u.meshrt_p.path[i]);
        
        delete[] u.meshrt_p.path;
        delete[] u.meshrt_p.valid;
        delete[] u.meshrt_p.pathlen; 
        delete[] u.meshrt_p.cost;
        break; 

      default:
        break; 
    }
  }
  
};

#endif