[ns] shedule Null handler timer pb

[sarym binome]

hello
i introduced a new pkt in AODV protocol ,witch i want to send it once when i start a simulation  
i want to broadcast it , so i write a send_newpkt ()

and I have this error when
I run a tcl example 

Scheduler: attempt to
schedule an event with a NULL handler.  Don't DO that. 
i didn't use any timer cause i don't send the newpkt periodically but only once at the beginning

plz look the code below :

this is the code 

and i call it in AODV.CC
AODV::AODV(nsaddr_t id) : Agent(PT_AODV),
              btimer(this), htimer(this), ntimer(this),
              rtimer(this), lrtimer(this), rqueue() {


  index = id;
  seqno = 2;
  bid = 1;

  LIST_INIT(&nbhead);
  LIST_INIT(&bihead);


  logtarget = 0;
  ifqueue = 0;
  sendnewpkt();
  
}


void
AODV::sendnewpkt() {
Packet *p = Packet::alloc();
struct hdr_cmn *ch = HDR_CMN(p);
struct hdr_ip *ih = HDR_IP(p);
struct hdr_srs_aodv_reply *rh = HDR_srs_AODV_REPLY(p);

#ifdef DEBUG
fprintf(stderr, "sending newpkt from %d at %.2f\n", index, Scheduler::instance().clock());
#endif // DEBUG

 rh->rp_type = AODVTYPE_newpkt;
 //rh->rp_flags = 0x00;
 rh->rp_hop_count = 1;
 rh->rp_dst = index;
 rh->rp_dst_seqno = seqno;
 rh->rp_lifetime = (1 + ALLOWED_HELLO_LOSS) * HELLO_INTERVAL;

 // ch->uid() = 0;
 ch->ptype() = PT_AODV;
 ch->size() = IP_HDR_LEN + rh->size();
 ch->iface() = -2;
 ch->error() = 0;
 ch->addr_type() = NS_AF_NONE;
 ch->prev_hop_ = index;          //AODV hack

 ih->saddr() = index;
 ih->daddr() = IP_BROADCAST;
 ih->sport() = RT_PORT;
 ih->dport() = RT_PORT;
 ih->ttl_ = 1;

Scheduler::instance().schedule(target_, p, 0.0); //send(p,0);

}

i tried send(p,0) but i had a segment fault

best regards 

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