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Firstly, the old methods all routed to the CompletableFuture method. However, the CF method could not guarantee that if the caller was off-main that the future would be "completed" on-main. Since the callback methods used the CF one, this meant that the callback methods did not guarantee that the callbacks were to be called on the main thread. Now, all methods route to getChunkAtAsync(x, z, gen, urgent, cb) so that the methods with the callback are guaranteed to invoke the callback on the main thread. The CF behavior remains unchanged; it may still appear to complete on main if invoked off-main. Secondly, remove the scheduleOnMain invocation in the async chunk completion. This unnecessarily delays the callback by 1 tick. Thirdly, add getChunksAtAsync(minX, minZ, maxX, maxZ, ...) which will load chunks within an area. This method is provided as a helper as keeping all chunks loaded within an area can be complicated to implement for plugins (due to the lacking ticket API), and is already implemented internally anyways. Fourthly, remove the ticket addition that occured with getChunkAt and getChunkAtAsync. The ticket addition may delay the unloading of the chunk unnecessarily. It also fixes a very rare timing bug where the future/callback would be completed after the chunk unloads.
37 lines
1.7 KiB
Diff
37 lines
1.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Tue, 28 Dec 2021 07:19:01 -0800
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Subject: [PATCH] Execute chunk tasks fairly for worlds while waiting for next
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tick
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Currently, only the first world would have had tasks executed.
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This might result in chunks loading far slower in the nether,
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for example.
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index 0db44e8205d795cbeca1d6411aca0da5edf40d21..606c63342dcfb88e5c5d34c2e841ec8fa12e38e7 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -1404,6 +1404,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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if (super.pollTask()) {
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return true;
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} else {
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+ boolean ret = false; // Paper - force execution of all worlds, do not just bias the first
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if (this.tickRateManager.isSprinting() || this.haveTime()) {
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Iterator iterator = this.getAllLevels().iterator();
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@@ -1411,12 +1412,12 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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ServerLevel worldserver = (ServerLevel) iterator.next();
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if (worldserver.getChunkSource().pollTask()) {
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- return true;
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+ ret = true; // Paper - force execution of all worlds, do not just bias the first
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}
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}
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}
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- return false;
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+ return ret; // Paper - force execution of all worlds, do not just bias the first
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}
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}
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