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f37381ea8a
Removes synchronization from sending packets
Makes normal packet sends no longer need to be wrapped and queued like it use to work.
Adds more packet queue immunities on top of keep alive to let the following scenarios go out
without delay:
- Keep Alive
- Chat
- Kick
- All of the packets during the Player Joined World event
Hoping that latter one helps join timeout issues more too for slow connections.
Removes processing packet queue off of main thread
- for the few cases where it is allowed, order is not necessary nor
should it even be happening concurrently in first place (handshaking/login/status)
Ensures packets sent asynchronously are dispatched on main thread
This helps ensure safety for ProtocolLib as packet listeners
are commonly accessing world state. This will allow you to schedule
a packet to be sent async, but itll be dispatched sync for packet
listeners to process.
This should solve some deadlock risks
This may provide a decent performance improvement because thread synchronization incurs a cache reset
so by avoiding ever entering a synchronized block, we get to avoid that, and packet sending is a really
hot activity.
35 lines
1.6 KiB
Diff
35 lines
1.6 KiB
Diff
From 0508c10e21274ebf11d37c0814625ab35675e76f Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Tue, 21 May 2019 02:34:04 +0100
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Subject: [PATCH] improve CraftWorld#isChunkLoaded
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getChunkAt will request the chunk using vanillas chunk loading system,
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which while we're not going to load the chunk, does involve the server
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waiting for the execution queue to get to our request; We can just query
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the chunk status and get a response now, vs having to wait
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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index 0d5731429ab..5ea7b0b25ae 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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@@ -405,14 +405,13 @@ public class CraftWorld implements World {
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@Override
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public boolean isChunkLoaded(int x, int z) {
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- net.minecraft.server.Chunk chunk = world.getChunkProvider().getChunkAt(x, z, false);
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- return chunk != null;
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+ return world.getChunkProvider().getChunkAtIfLoadedImmediately(x, z) != null; // Paper
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}
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@Override
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public boolean isChunkGenerated(int x, int z) {
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try {
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- return isChunkLoaded(x, z) || world.getChunkProvider().playerChunkMap.read(new ChunkCoordIntPair(x, z)) != null;
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+ return world.getChunkProvider().getChunkAtIfCachedImmediately(x, z) != null || world.getChunkProvider().playerChunkMap.read(new ChunkCoordIntPair(x, z)) != null; // Paper (TODO check if the first part can be removed)
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} catch (IOException ex) {
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throw new RuntimeException(ex);
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}
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--
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2.26.2
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