PaperMC/Spigot-Server-Patches/0116-Optimize-UserCache-Thread-Safe.patch
Aikar b62dfa0bf9
Updated Upstream (Bukkit/CraftBukkit)
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:
39ce5d3a SPIGOT-4399: ItemMeta.equals broken with AttributeModifiers

CraftBukkit Changes:
1cf8b5dc SPIGOT-4400: Populators running on existing chunks
116cb9a1 SPIGOT-4399: Add attribute modifier equality test
5ee1c18a SPIGOT-4398: Set ASM7_EXPERIMENTAL flag
2018-09-28 19:31:59 -04:00

102 lines
3.8 KiB
Diff

From 69dc8f855cc02a3f1b8016a9accd29960e48b796 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 16 May 2016 20:47:41 -0400
Subject: [PATCH] Optimize UserCache / Thread Safe
Because Techable keeps complaining about how this isn't thread safe,
easier to do this than replace the entire thing.
Additionally, move Saving of the User cache to be done async, incase
the user never changed the default setting for Spigot's save on stop only.
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index eb6ada935f..04d8c108b4 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -691,7 +691,7 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
// Spigot start
if (org.spigotmc.SpigotConfig.saveUserCacheOnStopOnly) {
LOGGER.info("Saving usercache.json");
- this.getUserCache().c();
+ this.getUserCache().c(false); // Paper
}
// Spigot end
}
diff --git a/src/main/java/net/minecraft/server/UserCache.java b/src/main/java/net/minecraft/server/UserCache.java
index 0e168ad349..f8b7d695c6 100644
--- a/src/main/java/net/minecraft/server/UserCache.java
+++ b/src/main/java/net/minecraft/server/UserCache.java
@@ -109,7 +109,7 @@ public class UserCache {
this.a(gameprofile, (Date) null);
}
- private void a(GameProfile gameprofile, Date date) {
+ private synchronized void a(GameProfile gameprofile, Date date) { // Paper - synchronize
UUID uuid = gameprofile.getId();
if (date == null) {
@@ -122,8 +122,9 @@ public class UserCache {
UserCache.UserCacheEntry usercache_usercacheentry = new UserCache.UserCacheEntry(gameprofile, date, null);
- if (this.e.containsKey(uuid)) {
+ //if (this.e.containsKey(uuid)) { // Paper
UserCache.UserCacheEntry usercache_usercacheentry1 = (UserCache.UserCacheEntry) this.e.get(uuid);
+ if (usercache_usercacheentry1 != null) { // Paper
this.d.remove(usercache_usercacheentry1.a().getName().toLowerCase(Locale.ROOT));
this.f.remove(gameprofile);
@@ -136,7 +137,7 @@ public class UserCache {
}
@Nullable
- public GameProfile getProfile(String s) {
+ public synchronized GameProfile getProfile(String s) { // Paper - synchronize
String s1 = s.toLowerCase(Locale.ROOT);
UserCache.UserCacheEntry usercache_usercacheentry = (UserCache.UserCacheEntry) this.d.get(s1);
@@ -165,8 +166,9 @@ public class UserCache {
return usercache_usercacheentry == null ? null : usercache_usercacheentry.a();
}
+ @Nullable public GameProfile getProfile(UUID uuid) { return a(uuid); } // Paper - OBFHELPER
@Nullable
- public GameProfile a(UUID uuid) {
+ public synchronized GameProfile a(UUID uuid) { // Paper - synchronize
UserCache.UserCacheEntry usercache_usercacheentry = (UserCache.UserCacheEntry) this.e.get(uuid);
return usercache_usercacheentry == null ? null : usercache_usercacheentry.a();
@@ -221,8 +223,15 @@ public class UserCache {
}
+ // Paper start
public void c() {
+ c(true);
+ }
+ public void c(boolean asyncSave) {
+ // Paper end
String s = this.b.toJson(this.a(org.spigotmc.SpigotConfig.userCacheCap));
+ Runnable save = () -> {
+
BufferedWriter bufferedwriter = null;
try {
@@ -236,6 +245,14 @@ public class UserCache {
} finally {
IOUtils.closeQuietly(bufferedwriter);
}
+ // Paper start
+ };
+ if (asyncSave) {
+ MCUtil.scheduleAsyncTask(save);
+ } else {
+ save.run();
+ }
+ // Paper end
}
--
2.19.0