Yatopia/patches/server/0041-Stop-wasting-resources-on-JsonList-get.patch
Ivan Pekov e2d915fabd
Updated Upstream and Sidestream(s) (Tuinity/Origami/Purpur)
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:
aaef5d7 Updated Upstream (Paper)
31e1268 Merge https://github.com/Spottedleaf/Tuinity into ver/1.16.4
957a2ef Fix chunk object leak

Origami Changes:
d41f0b3 Update Paper to 1.16.4

Purpur Changes:
519ac08 Updated Upstream (Paper)
be5fcdd Fix book bug
21e0b98 Updated Upstream (Paper & Tuinity)
2020-11-15 15:39:13 +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 6e20c86977258ddbca59936e28f2f5d04f2944fb..ad756029c97bf73594eabb7ef5c803b205477777 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -636,6 +636,7 @@ 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) {
@@ -643,7 +644,11 @@ 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