100 lines
3.7 KiB
Diff
100 lines
3.7 KiB
Diff
From fadf46bd5f5d74c2a61e95601b3bd3704b16d71b Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Mon, 16 May 2016 20:47:41 -0400
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Subject: [PATCH] Optimize UserCache / Thread Safe
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Because Techable keeps complaining about how this isn't thread safe,
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easier to do this than replace the entire thing.
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Additionally, move Saving of the User cache to be done async, incase
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the user never changed the default setting for Spigot's save on stop only.
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index ec9f037..7e7ec23 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -497,7 +497,7 @@ public abstract class MinecraftServer implements Runnable, ICommandListener, IAs
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// Spigot start
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if (org.spigotmc.SpigotConfig.saveUserCacheOnStopOnly) {
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LOGGER.info("Saving usercache.json");
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- this.X.c();
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+ this.X.c(false); // Paper
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}
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// Spigot end
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}
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diff --git a/src/main/java/net/minecraft/server/UserCache.java b/src/main/java/net/minecraft/server/UserCache.java
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index 5cc2731..ca20b3d 100644
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--- a/src/main/java/net/minecraft/server/UserCache.java
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+++ b/src/main/java/net/minecraft/server/UserCache.java
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@@ -108,7 +108,7 @@ public class UserCache {
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this.a(gameprofile, (Date) null);
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}
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- private void a(GameProfile gameprofile, Date date) {
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+ private synchronized void a(GameProfile gameprofile, Date date) { // Paper - synchronize
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UUID uuid = gameprofile.getId();
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if (date == null) {
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@@ -122,8 +122,9 @@ public class UserCache {
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String s = gameprofile.getName().toLowerCase(Locale.ROOT);
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UserCache.UserCacheEntry usercache_usercacheentry = new UserCache.UserCacheEntry(gameprofile, date, null);
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- if (this.e.containsKey(uuid)) {
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+ //if (this.e.containsKey(uuid)) { // Paper
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UserCache.UserCacheEntry usercache_usercacheentry1 = (UserCache.UserCacheEntry) this.e.get(uuid);
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+ if (usercache_usercacheentry1 != null) { // Paper
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this.d.remove(usercache_usercacheentry1.a().getName().toLowerCase(Locale.ROOT));
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this.f.remove(gameprofile);
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@@ -136,7 +137,7 @@ public class UserCache {
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}
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@Nullable
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- public GameProfile getProfile(String s) {
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+ public synchronized GameProfile getProfile(String s) { // Paper - synchronize
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String s1 = s.toLowerCase(Locale.ROOT);
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UserCache.UserCacheEntry usercache_usercacheentry = (UserCache.UserCacheEntry) this.d.get(s1);
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@@ -165,7 +166,7 @@ public class UserCache {
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return usercache_usercacheentry == null ? null : usercache_usercacheentry.a();
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}
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- public String[] a() {
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+ public synchronized String[] a() { // Paper - synchronize
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ArrayList arraylist = Lists.newArrayList(this.d.keySet());
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return (String[]) arraylist.toArray(new String[arraylist.size()]);
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@@ -227,8 +228,15 @@ public class UserCache {
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}
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+ // Paper start
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public void c() {
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+ c(true);
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+ }
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+ public void c(boolean asyncSave) {
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+ // Paper end
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String s = this.b.toJson(this.a(org.spigotmc.SpigotConfig.userCacheCap));
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+ Runnable save = () -> { // Paper - ensure only 1 file is writing at same time by syncing to the FD
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+
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BufferedWriter bufferedwriter = null;
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try {
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@@ -242,6 +250,14 @@ public class UserCache {
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} finally {
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IOUtils.closeQuietly(bufferedwriter);
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}
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+ // Paper start
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+ }};
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+ if (asyncSave) {
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+ MCUtil.scheduleAsyncTask(save);
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+ } else {
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+ save.run();
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+ }
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+ // Paper end
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}
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--
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2.8.2
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