Exemple #1
0
void Scheduler::startNewRound() {
  // update flows so that they can be moved to the new round
  std::vector<Flow*> flowVec;
  while (pendingEvents.empty() == false) {
    Flow* f = const_cast<Flow*> (pendingEvents.top());
    pendingEvents.pop();
    if (f->getFlowType() == FlowType::WATCH) {
      // there is no point in carrying over watch flows, as they will be discarded
      BOOST_LOG_TRIVIAL(trace) << "Deleting watch flow for chunk" << f->getChunkId()
              << " of content " << f->getContent()->getName() << " for user "
              << f->getDestination().first << "," << f->getDestination().second;
      delete f;
      continue;
    }
    f->updateSizeDownloaded(this->roundDuration);
    f->setLastUpdate(0);
    f->setStart(f->getStart() - this->roundDuration); // negative
    SimTime oldEta = f->getEta();
    if (oldEta < this->roundDuration) {
      BOOST_LOG_TRIVIAL(error) << "Scheduler::startNewRound() - unresolved event has eta "
              << oldEta << " < roundDuration";
      abort();
    }
    f->setEta(oldEta - this->roundDuration);
    if (this->mode == IPTV && f->getContent()->getReleaseDay() <= currentRound-6) {
      // expired contents in IPTV will be deleted so flows can't be completed, 
      // this event should have been truncated last round
      BOOST_LOG_TRIVIAL(info) << "Scheduler::startNewRound() - carried over flow "
              "with expired content will not be completed";
      if (f->getFlowType() == FlowType::TRANSFER) {
        // this is hacky, but needs to be done. Ideally we should not get here at all.
        oracle->getTopology()->updateCapacity(f, this, false);
        f->setContent(nullptr);
      }
    } else
      flowVec.push_back(f);
  }
  handleMap.clear();
  BOOST_FOREACH (Flow* f, flowVec) {
    this->schedule(f);
  }