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1358d1e914
Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 881e06e5 PR-725: Add Item Unlimited Lifetime APIs CraftBukkit Changes: 74c08312 SPIGOT-6962: Call EntityChangeBlockEvent when when FallingBlockEntity starts to fall 64db5126 SPIGOT-6959: Make /loot command ignore empty items for spawn 2d760831 Increase outdated build delay 9ed7e4fb SPIGOT-6138, SPIGOT-6415: Don't call CreatureSpawnEvent after cross-dimensional travel fc4ad813 SPIGOT-6895: Trees grown with applyBoneMeal() don't fire the StructureGrowthEvent 59733a2e SPIGOT-6961: Actually return a copy of the ItemMeta Spigot Changes: ffceeae3 SPIGOT-6956: Drop unload queue patch as attempt at fixing stop issue e19ddabd PR-1011: Add Item Unlimited Lifetime APIs 34d40b0e SPIGOT-2942: give command fires PlayerDropItemEvent, cancelling it causes Item Duplication
106 lines
5.2 KiB
Diff
106 lines
5.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <spottedleaf@spottedleaf.dev>
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Date: Sat, 11 Jul 2020 05:09:28 -0700
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Subject: [PATCH] Separate lookup locking from state access in UserCache
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Prevent lookups from stalling simple state access/write calls
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diff --git a/src/main/java/net/minecraft/server/players/GameProfileCache.java b/src/main/java/net/minecraft/server/players/GameProfileCache.java
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index 95974d78196397136179f8d6acf1597c557e5a23..6349b33939909435120fdef5e506480108cfbfc1 100644
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--- a/src/main/java/net/minecraft/server/players/GameProfileCache.java
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+++ b/src/main/java/net/minecraft/server/players/GameProfileCache.java
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@@ -62,6 +62,11 @@ public class GameProfileCache {
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@Nullable
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private Executor executor;
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+ // Paper start
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+ protected final java.util.concurrent.locks.ReentrantLock stateLock = new java.util.concurrent.locks.ReentrantLock();
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+ protected final java.util.concurrent.locks.ReentrantLock lookupLock = new java.util.concurrent.locks.ReentrantLock();
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+ // Paper end
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+
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public GameProfileCache(GameProfileRepository profileRepository, File cacheFile) {
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this.profileRepository = profileRepository;
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this.file = cacheFile;
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@@ -69,6 +74,7 @@ public class GameProfileCache {
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}
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private void safeAdd(GameProfileCache.GameProfileInfo entry) {
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+ try { this.stateLock.lock(); // Paper - allow better concurrency
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GameProfile gameprofile = entry.getProfile();
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entry.setLastAccess(this.getNextOperation());
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@@ -83,6 +89,7 @@ public class GameProfileCache {
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if (uuid != null) {
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this.profilesByUUID.put(uuid, entry);
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}
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+ } finally { this.stateLock.unlock(); } // Paper - allow better concurrency
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}
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@@ -119,7 +126,7 @@ public class GameProfileCache {
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return com.destroystokyo.paper.PaperConfig.isProxyOnlineMode(); // Paper
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}
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- public synchronized void add(GameProfile profile) { // Paper - synchronize
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+ public void add(GameProfile profile) { // Paper - synchronize // Paper - allow better concurrency
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Calendar calendar = Calendar.getInstance();
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calendar.setTime(new Date());
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@@ -142,8 +149,9 @@ public class GameProfileCache {
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}
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// Paper end
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- public synchronized Optional<GameProfile> get(String name) { // Paper - synchronize
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+ public Optional<GameProfile> get(String name) { // Paper - synchronize // Paper start - allow better concurrency
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String s1 = name.toLowerCase(Locale.ROOT);
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+ boolean stateLocked = true; try { this.stateLock.lock(); // Paper - allow better concurrency
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GameProfileCache.GameProfileInfo usercache_usercacheentry = (GameProfileCache.GameProfileInfo) this.profilesByName.get(s1);
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boolean flag = false;
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@@ -159,8 +167,12 @@ public class GameProfileCache {
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if (usercache_usercacheentry != null) {
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usercache_usercacheentry.setLastAccess(this.getNextOperation());
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optional = Optional.of(usercache_usercacheentry.getProfile());
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+ stateLocked = false; this.stateLock.unlock(); // Paper - allow better concurrency
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} else {
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+ stateLocked = false; this.stateLock.unlock(); // Paper - allow better concurrency
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+ try { this.lookupLock.lock(); // Paper - allow better concurrency
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optional = GameProfileCache.lookupGameProfile(this.profileRepository, name); // Spigot - use correct case for offline players
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+ } finally { this.lookupLock.unlock(); } // Paper - allow better concurrency
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if (optional.isPresent()) {
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this.add((GameProfile) optional.get());
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flag = false;
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@@ -172,6 +184,7 @@ public class GameProfileCache {
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}
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return optional;
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+ } finally { if (stateLocked) { this.stateLock.unlock(); } } // Paper - allow better concurrency
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}
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public void getAsync(String username, Consumer<Optional<GameProfile>> consumer) {
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@@ -198,6 +211,7 @@ public class GameProfileCache {
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}
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public Optional<GameProfile> get(UUID uuid) {
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+ try { this.stateLock.lock(); // Paper - allow better concurrency
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GameProfileCache.GameProfileInfo usercache_usercacheentry = (GameProfileCache.GameProfileInfo) this.profilesByUUID.get(uuid);
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if (usercache_usercacheentry == null) {
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@@ -206,6 +220,7 @@ public class GameProfileCache {
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usercache_usercacheentry.setLastAccess(this.getNextOperation());
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return Optional.of(usercache_usercacheentry.getProfile());
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}
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+ } finally { this.stateLock.unlock(); } // Paper - allow better concurrency
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}
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public void setExecutor(Executor executor) {
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@@ -326,7 +341,9 @@ public class GameProfileCache {
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}
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private Stream<GameProfileCache.GameProfileInfo> getTopMRUProfiles(int limit) {
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+ try { this.stateLock.lock(); // Paper - allow better concurrency
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return ImmutableList.copyOf(this.profilesByUUID.values()).stream().sorted(Comparator.comparing(GameProfileCache.GameProfileInfo::getLastAccess).reversed()).limit((long) limit);
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+ } finally { this.stateLock.unlock(); } // Paper - allow better concurrency
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}
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private static JsonElement writeGameProfile(GameProfileCache.GameProfileInfo entry, DateFormat dateFormat) {
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