Paper/patches/server/0400-Wait-for-Async-Tasks-during-shutdown.patch
Jake Potrebic 773dd72446
Updated Upstream (Bukkit/CraftBukkit) (#9739)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
69c7ce23 PR-990: Use Mockito instead of InvocationHandler for test mocking
997de31d PR-893: Add a stream method to Registry to make it easier to use and to avoid unnecessary wrapping
6a8ce581 Fix malformed javadoc in previous commit
26c74f6d PR-890: Add more Sculk API (bloom, shriek, bloom event)
aa067abf PR-895: Load GameEvent and MusicInstrument from registry

CraftBukkit Changes:
78796c9de Add support for Java 21
ddc9a2dad SPIGOT-7475: Don't fire SculkBloomEvent during world generation
caee2311a PR-1245: Add a stream method to Registry to make it easier to use and to avoid unnecessary wrapping
de421cf56 PR-1242: Add more Sculk API (bloom, shriek, bloom event)
00f5a80fb PR-1252: Fix error when generating a tree in water
10219df3a PR-1248: Load GameEvent and MusicInstrument from registry
2023-09-21 18:48:55 +02:00

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Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 10 May 2020 22:16:17 -0400
Subject: [PATCH] Wait for Async Tasks during shutdown
Server.reload() had this logic to give time for tasks to shutdown,
however shutdown did not...
Adds a 5 second grace period for any async tasks to finish and warns
if any are still running after that delay just as reload does.
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 8b1a92c1a0e9505ebc11de0e6b54b48343ef8e60..ccf238c12c416e2aa7ee83a14bbbb96f5b2f8b51 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -927,6 +927,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
// CraftBukkit start
if (this.server != null) {
this.server.disablePlugins();
+ this.server.waitForAsyncTasksShutdown(); // Paper
}
// CraftBukkit end
if (this.getConnection() != null) {
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index d07c3a06ab9e6f65090b8df999b7edcfc1b32727..7909cf20ab3cd4948ed13c6eba0cdf503b557a70 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -1016,6 +1016,31 @@ public final class CraftServer implements Server {
org.spigotmc.WatchdogThread.hasStarted = true; // Paper - Disable watchdog early timeout on reload
}
+ // Paper start
+ public void waitForAsyncTasksShutdown() {
+ int pollCount = 0;
+
+ // Wait for at most 5 seconds for plugins to close their threads
+ while (pollCount < 10*5 && getScheduler().getActiveWorkers().size() > 0) {
+ try {
+ Thread.sleep(100);
+ } catch (InterruptedException e) {}
+ pollCount++;
+ }
+
+ List<BukkitWorker> overdueWorkers = getScheduler().getActiveWorkers();
+ for (BukkitWorker worker : overdueWorkers) {
+ Plugin plugin = worker.getOwner();
+ getLogger().log(Level.SEVERE, String.format(
+ "Nag author(s): '%s' of '%s' about the following: %s",
+ plugin.getPluginMeta().getAuthors(),
+ plugin.getPluginMeta().getDisplayName(),
+ "This plugin is not properly shutting down its async tasks when it is being shut down. This task may throw errors during the final shutdown logs and might not complete before process dies."
+ ));
+ }
+ }
+ // Paper end
+
@Override
public void reloadData() {
ReloadCommand.reload(console);