cpp/openttd-patchpack/source Changeset - r22474:64703652df96

Changeset - r22474:64703652df96

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fonsinchen - 8 years ago 2016-12-04 19:53:38
fonsinchen@openttd.org

(svn r27681) -Fix: When deleting stale links, iterate through order lists before iterating through vehicles

1 file changed with 24 insertions and 11 deletions:

src/station_cmd.cpp

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src/station_cmd.cpp

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@@ @@ -3459,8 +3459,8 @@ void DeleteStaleLinks(Station *from) @@
 			if ((uint)(_date - edge.LastUpdate()) > timeout) {
 				/* Have all vehicles refresh their next hops before deciding to
 				 * remove the node. */
 				bool updated = false;
 				OrderList *l;
 				SmallVector<Vehicle *, 32> vehicles;
 				FOR_ALL_ORDER_LISTS(l) {
 					bool found_from = false;
 					bool found_to = false;
@@ @@ -3475,18 +3475,31 @@ void DeleteStaleLinks(Station *from) @@
+						}
+					}
 					if (!found_to || !found_from) continue;
 					for (Vehicle *v = l->GetFirstSharedVehicle(); !updated && v != NULL; v = v->NextShared()) {
 						/* There is potential for optimization here:
 						 * - Usually consists of the same order list are the same. It's probably better to
 						 *   first check the first of each list, then the second of each list and so on.
 						 * - We could try to figure out if we've seen a consist with the same cargo on the
 						 *   same list already and if the consist can actually carry the cargo we're looking
 						 *   for. With conditional and refit orders this is not quite trivial, though. */
 						LinkRefresher::Run(v, false); // Don't allow merging. Otherwise lg might get deleted.
 						if (edge.LastUpdate() == _date) updated = true;
 					*(vehicles.Append()) = l->GetFirstSharedVehicle();
+				}
 				bool updated = false;
 				Vehicle **iter = vehicles.Begin();
 				while (iter != vehicles.End()) {
 					Vehicle *v = *iter;
 					LinkRefresher::Run(v, false); // Don't allow merging. Otherwise lg might get deleted.
 					if (edge.LastUpdate() == _date) {
 						updated = true;
 						break;
+					}
 					if (updated) break;
 					Vehicle *next_shared = v->NextShared();
 					if (next_shared) {
 						*iter = next_shared;
 						++iter;
 					} else {
 						vehicles.Erase(iter);
+					}
 					if (iter == vehicles.End()) iter = vehicles.Begin();
+				}
 				if (!updated) {
 					/* If it's still considered dead remove it. */
 					node.RemoveEdge(to->goods[c].node);

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