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8c5b837e05
Firstly, the old methods all routed to the CompletableFuture method. However, the CF method could not guarantee that if the caller was off-main that the future would be "completed" on-main. Since the callback methods used the CF one, this meant that the callback methods did not guarantee that the callbacks were to be called on the main thread. Now, all methods route to getChunkAtAsync(x, z, gen, urgent, cb) so that the methods with the callback are guaranteed to invoke the callback on the main thread. The CF behavior remains unchanged; it may still appear to complete on main if invoked off-main. Secondly, remove the scheduleOnMain invocation in the async chunk completion. This unnecessarily delays the callback by 1 tick. Thirdly, add getChunksAtAsync(minX, minZ, maxX, maxZ, ...) which will load chunks within an area. This method is provided as a helper as keeping all chunks loaded within an area can be complicated to implement for plugins (due to the lacking ticket API), and is already implemented internally anyways. Fourthly, remove the ticket addition that occured with getChunkAt and getChunkAtAsync. The ticket addition may delay the unloading of the chunk unnecessarily. It also fixes a very rare timing bug where the future/callback would be completed after the chunk unloads.
66 lines
4.1 KiB
Diff
66 lines
4.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Mon, 13 Jul 2020 06:22:54 -0700
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Subject: [PATCH] Fix AdvancementDataPlayer leak due from quitting early in
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login
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Move the criterion storage to the AdvancementDataPlayer object
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itself, so the criterion object stores no references - and thus
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needs no cleanup.
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diff --git a/src/main/java/net/minecraft/advancements/critereon/SimpleCriterionTrigger.java b/src/main/java/net/minecraft/advancements/critereon/SimpleCriterionTrigger.java
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index 9a387d5dc0925304d4163e3caa22206aaa68e3b7..f43053ba082f9772b6ec02828fa2d6f387c32d26 100644
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--- a/src/main/java/net/minecraft/advancements/critereon/SimpleCriterionTrigger.java
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+++ b/src/main/java/net/minecraft/advancements/critereon/SimpleCriterionTrigger.java
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@@ -15,32 +15,32 @@ import net.minecraft.server.level.ServerPlayer;
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import net.minecraft.world.level.storage.loot.LootContext;
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public abstract class SimpleCriterionTrigger<T extends SimpleCriterionTrigger.SimpleInstance> implements CriterionTrigger<T> {
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- private final Map<PlayerAdvancements, Set<CriterionTrigger.Listener<T>>> players = Maps.newIdentityHashMap();
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+ // private final Map<PlayerAdvancements, Set<CriterionTrigger.Listener<T>>> players = Maps.newIdentityHashMap(); // Paper - fix AdvancementDataPlayer leak; moved into AdvancementDataPlayer to fix memory leak
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@Override
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public final void addPlayerListener(PlayerAdvancements manager, CriterionTrigger.Listener<T> conditions) {
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- this.players.computeIfAbsent(manager, managerx -> Sets.newHashSet()).add(conditions);
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+ manager.criterionData.computeIfAbsent(this, managerx -> Sets.newHashSet()).add(conditions); // Paper - fix AdvancementDataPlayer leak
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}
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@Override
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public final void removePlayerListener(PlayerAdvancements manager, CriterionTrigger.Listener<T> conditions) {
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- Set<CriterionTrigger.Listener<T>> set = this.players.get(manager);
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+ Set<CriterionTrigger.Listener<T>> set = (Set) manager.criterionData.get(this); // Paper - fix AdvancementDataPlayer leak
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if (set != null) {
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set.remove(conditions);
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if (set.isEmpty()) {
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- this.players.remove(manager);
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+ manager.criterionData.remove(this); // Paper - fix AdvancementDataPlayer leak
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}
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}
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}
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@Override
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public final void removePlayerListeners(PlayerAdvancements tracker) {
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- this.players.remove(tracker);
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+ tracker.criterionData.remove(this); // Paper - fix AdvancementDataPlayer leak
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}
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protected void trigger(ServerPlayer player, Predicate<T> predicate) {
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PlayerAdvancements playerAdvancements = player.getAdvancements();
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- Set<CriterionTrigger.Listener<T>> set = this.players.get(playerAdvancements);
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+ Set<CriterionTrigger.Listener<T>> set = (Set) playerAdvancements.criterionData.get(this); // Paper - fix AdvancementDataPlayer leak
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if (set != null && !set.isEmpty()) {
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LootContext lootContext = EntityPredicate.createContext(player, player);
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List<CriterionTrigger.Listener<T>> list = null;
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diff --git a/src/main/java/net/minecraft/server/PlayerAdvancements.java b/src/main/java/net/minecraft/server/PlayerAdvancements.java
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index 0542b61053ed7039e54856eab86ba5842403e4fc..0fe941b0802f2966ad55509baac124f56ecef999 100644
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--- a/src/main/java/net/minecraft/server/PlayerAdvancements.java
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+++ b/src/main/java/net/minecraft/server/PlayerAdvancements.java
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@@ -63,6 +63,7 @@ public class PlayerAdvancements {
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private AdvancementHolder lastSelectedTab;
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private boolean isFirstPacket = true;
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private final Codec<PlayerAdvancements.Data> codec;
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+ public final Map<net.minecraft.advancements.critereon.SimpleCriterionTrigger<?>, Set<CriterionTrigger.Listener<?>>> criterionData = new java.util.IdentityHashMap<>(); // Paper - fix advancement data player leakage
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public PlayerAdvancements(DataFixer dataFixer, PlayerList playerManager, ServerAdvancementManager advancementLoader, Path filePath, ServerPlayer owner) {
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this.playerList = playerManager;
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