C++ (Cpp) NextHop Examples

Example #1

File: congestion-control-strategy.cpp Project: Stumble/ccalgo

/** \brief determines whether a NextHop is eligible
 *  \param currentDownstream incoming FaceId of current Interest
 *  \param wantUnused if true, NextHop must not have unexpired OutRecord
 *  \param now time::steady_clock::now(), ignored if !wantUnused
 */
static inline bool
congestion_Predicate_NextHop_eligible(const shared_ptr<pit::Entry>& pitEntry,
  const fib::NextHop& nexthop, FaceId currentDownstream, const Name& prefix,
  bool wantUnused = false,
  time::steady_clock::TimePoint now = time::steady_clock::TimePoint::min())
{
  shared_ptr<Face> upstream = nexthop.getFace();

  // upstream is current downstream
  if (upstream->getId() == currentDownstream)
    return false;

  // forwarding would violate scope
  if (pitEntry->violatesScope(*upstream))
    return false;
  // BOOST_CHECK_MESSAGE(true, "f**k");
  if (!upstream->m_cc->available(prefix))
    return false;

  if (wantUnused) {
    // NextHop must not have unexpired OutRecord
    pit::OutRecordCollection::const_iterator outRecord = pitEntry->getOutRecord(*upstream);
    if (outRecord != pitEntry->getOutRecords().end() &&
        outRecord->getExpiry() > now) {
      return false;
    }
  }
  return true;
}

Example #2

File: random-load-balancer-strategy.cpp Project: AaronTien/ndnSIM

static bool
canForwardToNextHop(shared_ptr<pit::Entry> pitEntry, const fib::NextHop& nexthop)
{
  return pitEntry->canForwardTo(*nexthop.getFace());
}