rca-ll.cc

Matlab下的大名鼎鼎的Leach分簇算法实现。对网络研究的有用处

/*************************************************************************
 *
 * This code was developed as part of the MIT SPIN project. (June, 1999)
 *
 *************************************************************************/

#ifdef MIT_uAMPS
#include "delay.h"
//#include "object.h"
#include "packet.h"

//#include "debug.h"
#include <list>
#include "arp.h"
#include "topography.h"
#include "trace.h"
#include "node.h"
#include "mac.h"
#include "ll.h"
#include "mit/rca/rca-ll.h"
#include "random.h"

static class RCALinkLayerClass : public TclClass {
public:
  RCALinkLayerClass() : TclClass("RCALinkLayer") {}
  TclObject* create(int, const char*const*) {
    return (new RCALinkLayer);
  }
} class_rcalinklayer;

void RCALinkLayer::sendDown(Packet* p)
{  
  Scheduler& s = Scheduler::instance();
  hdr_rca *rcah = HDR_RCA(p);
  hdr_ll *llh = HDR_LL(p);
  char *mh = (char*)p->access(hdr_mac::offset_);

  llh->seqno() = ++seqno_;
  llh->lltype() = LL_DATA;

  mac_->hdr_src(mh, mac_->addr());
  mac_->hdr_type(mh, ETHERTYPE_IP);
  mac_->hdr_dst((char*) HDR_MAC(p), rcah->rca_mac_dst());
  
  //Packet::PrintRcHeader(p,"Link Outgoing");
  
  mac_->hdr_dst((char*)HDR_MAC(p),rcah->rca_mac_dst());
  //s.schedule(downtarget_, p, mindelay_ / 2 + delay_ * Random::uniform());
  s.schedule(downtarget_, p, delay_);
}


void RCALinkLayer::sendUp(Packet* p)
{  
  Scheduler& s = Scheduler::instance();
  hdr_rca *rcah = HDR_RCA(p);
  //Packet::PrintRcHeader(p,"Link Incomming");
  if (hdr_cmn::access(p)->error() > 0) {
    //printf("Warning!  %d dropping packet from %d b/c it has an error.\n", 
    //rcah->rca_src(), rcah->rca_link_dst());
    //fflush(stdout);
    drop(p);
  } else
    s.schedule(uptarget_, p, delay_);
}
#endif