Paper/Spigot-Server-Patches/0101-Optimize-UserCache-Thread-Safe.patch
2019-12-11 17:43:22 -06:00

111 Zeilen
4.4 KiB
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From 025d5128eaa1e73d661b4545dc3e44ed1b49414c 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 2a40bb0b8..38bf3ea44 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -759,7 +759,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
// 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 65659996c..566f3db39 100644
--- a/src/main/java/net/minecraft/server/UserCache.java
+++ b/src/main/java/net/minecraft/server/UserCache.java
@@ -43,8 +43,8 @@ public class UserCache {
public static final SimpleDateFormat a = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss Z");
private static boolean c;
- private final Map<String, UserCache.UserCacheEntry> d = Maps.newHashMap();
- private final Map<UUID, UserCache.UserCacheEntry> e = Maps.newHashMap();
+ private final Map<String, UserCache.UserCacheEntry> d = new java.util.concurrent.ConcurrentHashMap<>(); // Paper
+ private final Map<UUID, UserCache.UserCacheEntry> e = new java.util.concurrent.ConcurrentHashMap<>(); // Paper
private final Deque<GameProfile> f = new java.util.concurrent.LinkedBlockingDeque<GameProfile>(); // CraftBukkit
private final GameProfileRepository g;
protected final Gson b;
@@ -108,7 +108,7 @@ 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) {
@@ -121,8 +121,9 @@ public class UserCache {
UserCache.UserCacheEntry usercache_usercacheentry = new UserCache.UserCacheEntry(gameprofile, date);
- 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);
@@ -135,7 +136,7 @@ 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);
@@ -164,6 +165,7 @@ 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 getProfile(UUID uuid) {
UserCache.UserCacheEntry usercache_usercacheentry = (UserCache.UserCacheEntry) this.e.get(uuid);
@@ -220,8 +222,15 @@ 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 {
@@ -235,6 +244,14 @@ public class UserCache {
} finally {
IOUtils.closeQuietly(bufferedwriter);
}
+ // Paper start
+ };
+ if (asyncSave) {
+ MCUtil.scheduleAsyncTask(save);
+ } else {
+ save.run();
+ }
+ // Paper end
}
--
2.17.1