the common communication between nodes is fine, but when i want to test the perimeter mode it has throw the error "Wrong the other node", it seems that it couldn't find its next hop node.
i trace the code as show below
Code:
int
GPSRNeighbors::intersect(nsaddr_t theother, double sx, double sy,
double dx, double dy){
//line 1 (x1,y1)--(x2,y2) is the segment
//line 2 (x3,y3)--(x4,y4) is the xD
struct gpsr_neighbor *other = getnb(theother);
if(other==NULL){
printf("Wrong the other node\n");
exit(1);
}
****************
struct gpsr_neighbor*
GPSRNeighbors::getnb(nsaddr_t nid){
struct gpsr_neighbor *temp = head_;
while(temp){
if(temp->id_ == nid){
if((GPSR_CURRENT - temp->ts_) < DEFAULT_GPSR_TIMEOUT)
return temp;
else {
delnb(temp); //if this entry expire, delete it and return NULL
return NULL;
}
return temp;
}
temp = temp->next_;
}
return NULL;
}
the simulation scene was shown in the attachment.
when i make node 0 send packet to node 1, the error will occur.
would somebody know how to solve it?
thank you for your time!