[ns] Mobile Node Positions and neighbor lists in MANET

[Saeed SHAHBAZI]

Hi all,

I have tried different ways to access the list of neighbors and their
locations including:

1- Node *nd = nd->get_node_by_address(addr());
    neighbor_list_node* nb = nd->neighbor_list_;
but nb is always NULL

2- bool Adian::IsNeighbor(int id)
{
    if(addr() == id)
         return false;
    Node *nd1 = nd1->get_node_by_address(addr());
    Node *nd2 = nd2->get_node_by_address(id);
    vector a(nd1->location()->X, nd1->location()->Y, nd1->location()->Z);
    vector b(nd2->location()->X, nd2->location()->Y, nd2->location()->Z);
    vector d = a - b;

    if (d.length() < 250)
         return true;
    return false;
}
but location() is always NULL and cause segment fault

3- int* neighborLstNode = God::instance()->GetNeighborList(addr());

I have added GetNeighborList(int) to the GOD but the result is NULL (segment
fault)
int* God::GetNeighborList(int id)
{
    //list<int> neighborlist;
    int neighborlist /*[] = new int*/ [nodes() + 1];
    int i = -1;
    neighborlist[0] = 0;

    while(mb_node[++i] != NULL)
    {
         if (i == id)
              continue;

         vector a(mb_node[i]->X(), mb_node[i]->Y(), mb_node[i]->Z());
         vector b(mb_node[id]->X(), mb_node[id]->Y(), mb_node[id]->Z());
         vector d = a - b;

         if (d.length() < RANGE)
         {
              //neighborlist.push_back(i);
              neighborlist[0]++;
              neighborlist[neighborlist[0]] = i;
         }
    }
}

Is there any solution to access to the location of mobile nodes or their
neighbors? 

--
Best Regards,
Saeed Shahbazi