mirror of
https://github.com/PaperMC/Paper.git
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f8fd607e04
Upstream has released updates that appears 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: bbfd13dd Hyperlink 'Events' in raid event package documentation b2095bed SPIGOT-5413: Add TrustedPlayer API for foxes 1bf1f3f4 Block trace methods do not require hash sets abf0cfdc Javadoc improvements per checkstyle c4a2b425 Add TimeSkipEvent CraftBukkit Changes:817116deSPIGOT-5413: Add TrustedPlayer API for foxes062680a8SPIGOT-5467: Calm down bees that cannot exit hive75fac431SPIGOT-5472: Spurious warning when using clone command on tile entities85106731SPIGOT-5471: Allow empty title/author for books2d9db47fAdd TimeSkipEvent384225c2Add thread name to TerminalConsoleWriterThread Spigot Changes: 05bb8bcf Postpone stopping the watchdog until the server is completely stopped 18e2b9be Add package-info.java for Spigot APIs
94 lines
4.3 KiB
Diff
94 lines
4.3 KiB
Diff
From 05ccd4a953088abcf6c53aa0c838659284e9c092 Mon Sep 17 00:00:00 2001
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From: crast <contact@jamescrasta.com>
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Date: Sat, 1 Jun 2013 13:52:30 -0600
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Subject: [PATCH] Reduce thread synchronization in MetadataStoreBase
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Use ConcurrentHashMap to allow thread-safe access methods and very
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limited synchronized portions to allow much higher concurrency in
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MetadataStore as well as far less locking, especially on reads
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diff --git a/src/main/java/org/bukkit/metadata/MetadataStoreBase.java b/src/main/java/org/bukkit/metadata/MetadataStoreBase.java
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index baf85022..d363d517 100644
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--- a/src/main/java/org/bukkit/metadata/MetadataStoreBase.java
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+++ b/src/main/java/org/bukkit/metadata/MetadataStoreBase.java
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@@ -12,7 +12,7 @@ import org.bukkit.plugin.Plugin;
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import org.jetbrains.annotations.NotNull;
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public abstract class MetadataStoreBase<T> {
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- private Map<String, Map<Plugin, MetadataValue>> metadataMap = new HashMap<String, Map<Plugin, MetadataValue>>();
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+ private Map<String, Map<Plugin, MetadataValue>> metadataMap = new java.util.concurrent.ConcurrentHashMap<String, Map<Plugin, MetadataValue>>(); // Paper
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/**
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* Adds a metadata value to an object. Each metadata value is owned by a
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@@ -46,7 +46,9 @@ public abstract class MetadataStoreBase<T> {
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entry = new WeakHashMap<Plugin, MetadataValue>(1);
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metadataMap.put(key, entry);
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}
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- entry.put(owningPlugin, newMetadataValue);
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+ synchronized (entry) {
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+ entry.put(owningPlugin, newMetadataValue);
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+ }
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}
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/**
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@@ -60,10 +62,11 @@ public abstract class MetadataStoreBase<T> {
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* @see MetadataStore#getMetadata(Object, String)
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*/
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@NotNull
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- public synchronized List<MetadataValue> getMetadata(@NotNull T subject, @NotNull String metadataKey) {
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+ public List<MetadataValue> getMetadata(@NotNull T subject, @NotNull String metadataKey) { // Paper
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String key = disambiguate(subject, metadataKey);
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- if (metadataMap.containsKey(key)) {
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- Collection<MetadataValue> values = metadataMap.get(key).values();
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+ Map<Plugin, MetadataValue> entry = metadataMap.get(key);
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+ if (entry != null) {
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+ Collection<MetadataValue> values = entry.values();
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return Collections.unmodifiableList(new ArrayList<MetadataValue>(values));
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} else {
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return Collections.emptyList();
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@@ -78,7 +81,7 @@ public abstract class MetadataStoreBase<T> {
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* @param metadataKey the unique metadata key being queried.
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* @return the existence of the metadataKey within subject.
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*/
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- public synchronized boolean hasMetadata(@NotNull T subject, @NotNull String metadataKey) {
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+ public boolean hasMetadata(@NotNull T subject, @NotNull String metadataKey) { // Paper
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String key = disambiguate(subject, metadataKey);
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return metadataMap.containsKey(key);
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}
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@@ -94,17 +97,18 @@ public abstract class MetadataStoreBase<T> {
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* @see MetadataStore#removeMetadata(Object, String,
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* org.bukkit.plugin.Plugin)
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*/
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- public synchronized void removeMetadata(@NotNull T subject, @NotNull String metadataKey, @NotNull Plugin owningPlugin) {
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+ public void removeMetadata(@NotNull T subject, @NotNull String metadataKey, @NotNull Plugin owningPlugin) { // Paper
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Validate.notNull(owningPlugin, "Plugin cannot be null");
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String key = disambiguate(subject, metadataKey);
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Map<Plugin, MetadataValue> entry = metadataMap.get(key);
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if (entry == null) {
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return;
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}
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-
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- entry.remove(owningPlugin);
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- if (entry.isEmpty()) {
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- metadataMap.remove(key);
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+ synchronized (entry) {
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+ entry.remove(owningPlugin);
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+ if (entry.isEmpty()) {
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+ metadataMap.remove(key);
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+ }
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}
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}
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@@ -117,7 +121,7 @@ public abstract class MetadataStoreBase<T> {
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* @throws IllegalArgumentException If plugin is null
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* @see MetadataStore#invalidateAll(org.bukkit.plugin.Plugin)
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*/
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- public synchronized void invalidateAll(@NotNull Plugin owningPlugin) {
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+ public void invalidateAll(@NotNull Plugin owningPlugin) { // Paper
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Validate.notNull(owningPlugin, "Plugin cannot be null");
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for (Map<Plugin, MetadataValue> values : metadataMap.values()) {
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if (values.containsKey(owningPlugin)) {
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--
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2.24.1
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