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God::instance()->IsNeighbor(i , j)

  • Charles Pandian
    Keymaster

    If you are talking about wireless scenario, then you can not detect neighbors of a node like this.

    Try the following link.
    [url]
    http://www.cse.msu.edu/~wangbo1/ns2/nshowto2.html
    [/url]

    #691 September 19, 2008 at 2:58 pm
    "> Details
  • Mustafa
    Participant

    @CharlesPandian wrote:

    If you are talking about wireless scenario, then you can not detect neighbors of a node like this.

    Try the following link.
    [url]
    http://www.cse.msu.edu/~wangbo1/ns2/nshowto2.html
    [/url]

    Dear CharlesPandian,
    I disable energy checking in IsNeighbor function in mobile/god.cc, and run make command in order to modify the change. but I still have the same error

    invalid command name “God::instance()->IsNeighbor(i”
    while executing
    “God::instance()->IsNeighbor(i , j)”
    (“for” body line 3)
    invoked from within
    “for {set i 0} {$i < $num_row*$num_row} {incr i} {
    for {set j 0} {$i < $num_row*$num_row} {incr j} {
    God::instance()->IsNeighbor(i , j);…”
    (file “pbcast_sim.tcl” line 155)
    I do not where is the problem.
    thank you so much for your help.

    #692 September 19, 2008 at 3:33 pm
    "> Details
  • Mustafa
    Participant

    Dear CharlesPandian,
    I disable energy checking in IsNeighbor function in mobile/god.cc, and run make command in order to modify the change. but I still have the same error

    invalid command name “God::instance()->IsNeighbor(i”
    while executing
    “God::instance()->IsNeighbor(i , j)”
    (“for” body line 3)
    invoked from within
    “for {set i 0} {$i < $num_row*$num_row} {incr i} {
    for {set j 0} {$i < $num_row*$num_row} {incr j} {
    God::instance()->IsNeighbor(i , j);…”
    (file “pbcast_sim.tcl” line 155)
    I do not where is the problem.
    thank you so much for your help.

    #693 September 19, 2008 at 4:02 pm
    "> Details
  • Charles Pandian
    Keymaster

    I hope that you can not call
    God::instance()->IsNeighbor from tcl script since it is a c++ function.

    Reply to this post if I am wrong.

    #694 September 21, 2008 at 10:09 am
    "> Details
  • Mustafa
    Participant

    Dear CharlesPandian.
    you are right, but what is the correct way to use this function inside TCL file or what is the correct way to use the value which return by this function inside TCL file?
    thanks

    #695 September 21, 2008 at 10:51 am
    "> Details
  • Charles Pandian
    Keymaster

    The answer is not simple. Once I did that for a research project (It may be a indirect way and there may be some other simple way of doing the same).

    First, you have to learn the basic idea from the above said link.

    I can not upload the full code due to some privacy/copyright reasons.

    You have to do the necessary coding in a c++ level agent and pass the values through a tcl function. The tcl function (AddNeighborToList) will populate a tcl list type variable.

    The main part of C++ level agent code.


    
void MyAgent::FillNeighborList()
    
{
    
Tcl& tcl = Tcl::instance();
    

    
int TotalNodes=God::instance()->nodes();
    

    
for(int i=0;i
{
    
if(God::instance()->IsNeighbor(i , here_.addr_))
    
{
    
tcl.evalf("%s AddNeighborToList %d ",name(), i);
    
}
    
}
    
}

    The tcl code which is actually populating the neighbor list “NeighborList_”


    
Agent/MyTclAgent instproc AddNeighborToList {nodeid} {
    
$self instvar NeighborList_
    
lappend NeighborList_ $nodeid
    
}
    #696 September 21, 2008 at 9:55 pm
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