Folia/patches/server/0004-Max-pending-logins.patch
Spottedleaf 6928284a56 Update Paper and add configurable region shift
The region shift is configurable under `grid-exponent`, which
allows setting the region shift to any value in [0, 31]. Note
that values above 6 affect the lock shift, as the lock shift
currently is computed as max(ticket shift = 6, region shift).
The shift is left configurable for now as the lower default
shift of 2 may have negative performance impacts.

The default region shift has been adjusted to 2 from 4, and
the empty chunk buffer has been reduced to 8 from 16. These
changes reduce, but do not eliminate, player spread
requirements. The previous block range was around ~1500 blocks
at VD = 10, but is now closer to ~900 blocks at VD = 10. This
roughly reduces the area that each player uses in the regioniser
by 2.5x.
2023-12-30 17:20:19 -08:00

43 lines
2.7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Thu, 9 Mar 2023 20:50:15 -0800
Subject: [PATCH] Max pending logins
Should help the floodgates on launch
diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
index 5834d5e10c0b9892f29977666e7b168a9463a3d9..5bac302f6aab2c61cba87ea3e32a260eeb0284b4 100644
--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
@@ -89,7 +89,7 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
if (this.server.getPlayerList().pushPendingJoin(name, uniqueId, this.connection)) {
// Folia end - region threading - rewrite login process
this.verifyLoginAndFinishConnectionSetup((GameProfile) Objects.requireNonNull(this.authenticatedProfile));
- } // Folia - region threading - rewrite login process
+ } else { --this.tick; } // Folia - region threading - rewrite login process // Folia - max concurrent logins
}
if (this.state == ServerLoginPacketListenerImpl.State.WAITING_FOR_DUPE_DISCONNECT && !this.isPlayerAlreadyInWorld((GameProfile) Objects.requireNonNull(this.authenticatedProfile))) {
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 184057aae74e8918bf05ab03429cb0419ae9ba06..eb797313a13b5a805f834b2e9f08989e381f0761 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -171,6 +171,17 @@ public abstract class PlayerList {
conflictingId = this.connectionById.get(byId);
if (conflictingName == null && conflictingId == null) {
+ // Folia start - max concurrent login
+ int loggedInCount = 0;
+ for (Connection value : this.connectionById.values()) {
+ if (value.getPacketListener() instanceof ServerGamePacketListenerImpl) {
+ ++loggedInCount;
+ }
+ }
+ if ((this.connectionById.size() - loggedInCount) >= io.papermc.paper.configuration.GlobalConfiguration.get().misc.maxJoinsPerTick) {
+ return false;
+ }
+ // Folia end - max concurrent login
this.connectionByName.put(userName, conn);
this.connectionById.put(byId, conn);
}