Yatopia/patches/server/0031-Stop-wasting-resources-on-JsonList-get.patch
Simon Gardling c5f892d7b2
Updated Upstream and Sidestream(s) (Tuinity/Empirecraft) (#408)
Upstream/An Sidestream has released updates that appears to apply and compile correctly
This update has NOT been tested by YatopiaMC and as with ANY update, please do your own testing.

Tuinity Changes:
2dfd22e Fix incorrect isRealPlayer init
e5f54a3 Fix chunks refusing to unload at low TPS
4415b59 Improve behavior for hard colliding entities

Empirecraft Changes:
e8696c6d Updated Paper
1a4a079b Fix names in script (#9)
2021-02-16 12:29:28 -06:00

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 1fc0139cb9694ddea41f57d95774c3b47e8530c5..d683e3e509cc21d007d3e32f68235cfad007d0d0 100644
--- a/src/main/java/net/minecraft/server/JsonList.java
+++ b/src/main/java/net/minecraft/server/JsonList.java
@@ -69,9 +69,13 @@ 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
}
@@ -149,12 +153,22 @@ 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 8b3b0dd9f67a0462737d0c2d61948f33840fceb1..cf53c8fe805764e995cab8eced00f10f9c52fd8e 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -648,6 +648,7 @@ 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) {
@@ -655,7 +656,11 @@ 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