Yatopia/patches/server/0034-Stop-wasting-resources-on-JsonList-get.patch
Ivan Pekov 5c8274bd2f
Port requested patches from Purpur
Ported: TPSBar, custom growth rates and configurable lava speed
2020-12-23 09:46:56 +02:00

82 lines
4.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Ivan Pekov <ivan@mrivanplays.com>
Date: Fri, 4 Sep 2020 10:07:42 +0300
Subject: [PATCH] Stop wasting resources on JsonList#get
Previously, when a banned player attempted to join the server was removing all the stale entries.
This caused a resource waste, which was unnoticeable to users that use ban plugins which doesn't
use the ban list. Akarin's changes for saving it async lowered the pressure, however it was
still pretty high.
Our changes are the following:
1. Stop removing all stale entries when JsonList#get is called.
2. Only if a player joins and his ban has expired, remove his ban which triggers a save which then
triggers removing of all stale entries.
diff --git a/src/main/java/net/minecraft/server/JsonList.java b/src/main/java/net/minecraft/server/JsonList.java
index 4094ef76b7b05de1bfcc28aa0ef13033abadeb7e..0224a6d0e47e836fa485b39e7b4ce5b83ea554bf 100644
--- a/src/main/java/net/minecraft/server/JsonList.java
+++ b/src/main/java/net/minecraft/server/JsonList.java
@@ -71,9 +71,13 @@ public abstract class JsonList<K, V extends JsonListEntry<K>> {
// Paper start
// this.g();
// return (V) this.d.get(this.a(k0)); // CraftBukkit - fix decompile error
+ // Yatopia start - only remove if it expires and has been requested
+ return this.getBackingMap().get(this.getMappingKey(k0));
+ /*
return (V) this.getBackingMap().computeIfPresent(this.getMappingKey(k0), (k, v) -> {
return v.hasExpired() ? null : v;
});
+ */ // Yatopia end
// Paper end
}
@@ -154,12 +158,22 @@ public abstract class JsonList<K, V extends JsonListEntry<K>> {
this.removeStaleEntries(); // Paper - remove expired values before saving
JsonArray jsonarray = new JsonArray();
+ // Yatopia start - we're nuking streams wherever possible
+ /*
this.d.values().stream().map((jsonlistentry) -> {
JsonObject jsonobject = new JsonObject();
jsonlistentry.getClass();
return (JsonObject) SystemUtils.a(jsonobject, jsonlistentry::a); // CraftBukkit - decompile error
}).forEach(jsonarray::add);
+ */
+ for (V value : this.d.values()) {
+ JsonObject obj = new JsonObject();
+ // todo: obfhelper for this?
+ value.a(obj);
+ jsonarray.add(obj);
+ }
+ // Yatopia end
BufferedWriter bufferedwriter = Files.newWriter(this.c, StandardCharsets.UTF_8);
Throwable throwable = null;
diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
index d56ca11a30faeb4f1346b853f50c25f46e3bd49e..d52985bc8236ba78b9530b4465e1f6de895f3b72 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -638,6 +638,7 @@ public abstract class PlayerList {
GameProfileBanEntry gameprofilebanentry;
if (getProfileBans().isBanned(gameprofile) && (gameprofilebanentry = getProfileBans().get(gameprofile)) != null) {
// Paper end
+ if (!gameprofilebanentry.hasExpired()) { // Yatopia
chatmessage = new ChatMessage("multiplayer.disconnect.banned.reason", new Object[]{gameprofilebanentry.getReason()});
if (gameprofilebanentry.getExpires() != null) {
@@ -645,7 +646,11 @@ public abstract class PlayerList {
}
// return chatmessage;
- if (!gameprofilebanentry.hasExpired()) event.disallow(PlayerLoginEvent.Result.KICK_BANNED, CraftChatMessage.fromComponent(chatmessage)); // Spigot
+ // Yatopia start
+ /* if (!gameprofilebanentry.hasExpired()) */ event.disallow(PlayerLoginEvent.Result.KICK_BANNED, CraftChatMessage.fromComponent(chatmessage)); // Spigot
+ } else {
+ getProfileBans().remove(gameprofile);
+ } // Yatopia end
} else if (!this.isWhitelisted(gameprofile, event)) { // Paper
chatmessage = new ChatMessage("multiplayer.disconnect.not_whitelisted");
//event.disallow(PlayerLoginEvent.Result.KICK_WHITELIST, org.spigotmc.SpigotConfig.whitelistMessage); // Spigot // Paper - moved to isWhitelisted