Example #1
0
/**
 * Join the link graph job and destroy it.
 */
LinkGraphJob::~LinkGraphJob()
{
	assert(this->thread == NULL);

	/* Link graph has been merged into another one. */
	if (!LinkGraph::IsValidID(this->link_graph.index)) return;

	uint size = this->Size();
	for (NodeID node_id = 0; node_id < size; ++node_id) {
		Node from = (*this)[node_id];

		/* The station can have been deleted. */
		Station *st = Station::GetIfValid(from.Station());
		if (st == NULL) continue;

		/* Link graph merging and station deletion may change around IDs. Make
		 * sure that everything is still consistent or ignore it otherwise. */
		GoodsEntry &ge = st->goods[this->Cargo()];
		if (ge.link_graph != this->link_graph.index || ge.node != node_id) continue;

		LinkGraph *lg = LinkGraph::Get(ge.link_graph);
		FlowStatMap &flows = from.Flows();

		for (EdgeIterator it(from.Begin()); it != from.End(); ++it) {
			if (from[it->first].Flow() == 0) continue;
			StationID to = (*this)[it->first].Station();
			Station *st2 = Station::GetIfValid(to);
			if (st2 == NULL || st2->goods[this->Cargo()].link_graph != this->link_graph.index ||
					st2->goods[this->Cargo()].node != it->first ||
					(*lg)[node_id][it->first].LastUpdate() == INVALID_DATE) {
				/* Edge has been removed. Delete flows. */
				flows.DeleteFlows(to);
			}
		}

		/* Swap shares and invalidate ones that are completely deleted. Don't
		 * really delete them as we could then end up with unroutable cargo
		 * somewhere. */
		for (FlowStatMap::iterator it(ge.flows.begin()); it != ge.flows.end(); ++it) {
			FlowStatMap::iterator new_it = flows.find(it->first);
			if (new_it == flows.end()) {
				it->second.Invalidate();
			} else {
				it->second.SwapShares(new_it->second);
				flows.erase(new_it);
			}
		}
		ge.flows.insert(flows.begin(), flows.end());
		InvalidateWindowData(WC_STATION_VIEW, st->index, this->Cargo());
	}
}
Example #2
0
/**
 * Join the link graph job and destroy it.
 */
LinkGraphJob::~LinkGraphJob()
{
    assert(this->thread == NULL);

    /* Don't update stuff from other pools, when everything is being removed.
     * Accessing other pools may be invalid. */
    if (CleaningPool()) return;

    /* Link graph has been merged into another one. */
    if (!LinkGraph::IsValidID(this->link_graph.index)) return;

    uint size = this->Size();
    for (NodeID node_id = 0; node_id < size; ++node_id) {
        Node from = (*this)[node_id];

        /* The station can have been deleted. */
        Station *st = Station::GetIfValid(from.Station());
        if (st == NULL) continue;

        /* Link graph merging and station deletion may change around IDs. Make
         * sure that everything is still consistent or ignore it otherwise. */
        GoodsEntry &ge = st->goods[this->Cargo()];
        if (ge.link_graph != this->link_graph.index || ge.node != node_id) continue;

        LinkGraph *lg = LinkGraph::Get(ge.link_graph);
        FlowStatMap &flows = from.Flows();

        for (EdgeIterator it(from.Begin()); it != from.End(); ++it) {
            if (from[it->first].Flow() == 0) continue;
            StationID to = (*this)[it->first].Station();
            Station *st2 = Station::GetIfValid(to);
            if (st2 == NULL || st2->goods[this->Cargo()].link_graph != this->link_graph.index ||
                    st2->goods[this->Cargo()].node != it->first ||
                    (*lg)[node_id][it->first].LastUpdate() == INVALID_DATE) {
                /* Edge has been removed. Delete flows. */
                StationIDStack erased = flows.DeleteFlows(to);
                /* Delete old flows for source stations which have been deleted
                 * from the new flows. This avoids flow cycles between old and
                 * new flows. */
                while (!erased.IsEmpty()) ge.flows.erase(erased.Pop());
            } else if ((*lg)[node_id][it->first].LastUnrestrictedUpdate() == INVALID_DATE) {
                /* Edge is fully restricted. */
                flows.RestrictFlows(to);
            }
        }

        /* Swap shares and invalidate ones that are completely deleted. Don't
         * really delete them as we could then end up with unroutable cargo
         * somewhere. Do delete them if automatic distribution has been turned
         * off for that cargo, though. */
        for (FlowStatMap::iterator it(ge.flows.begin()); it != ge.flows.end();) {
            FlowStatMap::iterator new_it = flows.find(it->first);
            if (new_it == flows.end()) {
                if (_settings_game.linkgraph.GetDistributionType(this->Cargo()) != DT_MANUAL) {
                    it->second.Invalidate();
                    ++it;
                } else {
                    ge.flows.erase(it++);
                }
            } else {
                it->second.SwapShares(new_it->second);
                flows.erase(new_it);
                ++it;
            }
        }
        ge.flows.insert(flows.begin(), flows.end());
        InvalidateWindowData(WC_STATION_VIEW, st->index, this->Cargo());
    }
}