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Fix 977604ef: [Linkgraph] Add a special case for unknown travel times on link update

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This commit is contained in:
Nicolas Chappe 2021-08-17 21:14:29 +02:00 committed by Michael Lutz
parent 325d031082
commit de28817d9f
1 changed files with 6 additions and 6 deletions
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12
src/linkgraph/linkgraph.cpp
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@ -74,6 +74,8 @@ void LinkGraph::Compress()
if (edge.capacity > 0) {
edge.capacity = std::max(1U, edge.capacity / 2);
edge.usage /= 2;
}
if (edge.travel_time_sum > 0) {
edge.travel_time_sum = std::max(1ULL, edge.travel_time_sum / 2);
}
}
@ -279,14 +281,12 @@ void LinkGraph::Edge::Update(uint capacity, uint usage, uint32 travel_time, Edge
this->edge.capacity += capacity;
this->edge.usage += usage;
} else if (mode & EUM_REFRESH) {
/* If travel time is not provided, we scale the stored time based on
* the capacity increase. */
if (capacity > this->edge.capacity && travel_time == 0) {
if (this->edge.travel_time_sum == 0) {
this->edge.capacity = std::max(this->edge.capacity, capacity);
this->edge.travel_time_sum = travel_time * this->edge.capacity;
} else if (capacity > this->edge.capacity) {
this->edge.travel_time_sum = this->edge.travel_time_sum / this->edge.capacity * capacity;
this->edge.capacity = capacity;
} else {
this->edge.capacity = std::max(this->edge.capacity, capacity);
this->edge.travel_time_sum = std::max<uint64>(this->edge.travel_time_sum, travel_time * capacity);
}
this->edge.usage = std::max(this->edge.usage, usage);
}