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Optimize Network Manager to not need synchronization

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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.
This commit is contained in:
Aikar
2020-05-06 05:22:03 -04:00
parent 30d007b163
commit fd5c98a9ef
141 changed files with 604 additions and 505 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
Spigot-Server-Patches/PlayerLaunchProjectileEvent.patch
View File

@@ -5,7 +5,7 @@ Subject: [PATCH] PlayerLaunchProjectileEvent
diff --git a/src/main/java/net/minecraft/server/InteractionResultWrapper.java b/src/main/java/net/minecraft/server/InteractionResultWrapper.java
index 5cab47a282..886babdcda 100644
index 5cab47a2821..886babdcda0 100644
--- a/src/main/java/net/minecraft/server/InteractionResultWrapper.java
+++ b/src/main/java/net/minecraft/server/InteractionResultWrapper.java
@@ -0,0 +0,0 @@ public class InteractionResultWrapper<T> {
@@ -17,7 +17,7 @@ index 5cab47a282..886babdcda 100644
return this.a;
}
diff --git a/src/main/java/net/minecraft/server/ItemEgg.java b/src/main/java/net/minecraft/server/ItemEgg.java
index 6fccd70a03..16f1b734e0 100644
index 6fccd70a034..16f1b734e01 100644
--- a/src/main/java/net/minecraft/server/ItemEgg.java
+++ b/src/main/java/net/minecraft/server/ItemEgg.java
@@ -0,0 +0,0 @@ public class ItemEgg extends Item {
@@ -61,7 +61,7 @@ index 6fccd70a03..16f1b734e0 100644
return InteractionResultWrapper.success(itemstack);
}
diff --git a/src/main/java/net/minecraft/server/ItemEnderPearl.java b/src/main/java/net/minecraft/server/ItemEnderPearl.java
index cab869e8e9..b57e9f7e72 100644
index cab869e8e9b..b57e9f7e72b 100644
--- a/src/main/java/net/minecraft/server/ItemEnderPearl.java
+++ b/src/main/java/net/minecraft/server/ItemEnderPearl.java
@@ -0,0 +0,0 @@ public class ItemEnderPearl extends Item {
@@ -113,7 +113,7 @@ index cab869e8e9..b57e9f7e72 100644
return InteractionResultWrapper.success(itemstack);
}
diff --git a/src/main/java/net/minecraft/server/ItemExpBottle.java b/src/main/java/net/minecraft/server/ItemExpBottle.java
index 071688b3ab..1d575af526 100644
index 071688b3ab4..1d575af5269 100644
--- a/src/main/java/net/minecraft/server/ItemExpBottle.java
+++ b/src/main/java/net/minecraft/server/ItemExpBottle.java
@@ -0,0 +0,0 @@ public class ItemExpBottle extends Item {
@@ -158,7 +158,7 @@ index 071688b3ab..1d575af526 100644
return InteractionResultWrapper.success(itemstack);
}
diff --git a/src/main/java/net/minecraft/server/ItemLingeringPotion.java b/src/main/java/net/minecraft/server/ItemLingeringPotion.java
index c19b678cfb..7672e31fc0 100644
index c19b678cfb2..7672e31fc0c 100644
--- a/src/main/java/net/minecraft/server/ItemLingeringPotion.java
+++ b/src/main/java/net/minecraft/server/ItemLingeringPotion.java
@@ -0,0 +0,0 @@ public class ItemLingeringPotion extends ItemPotionThrowable {
@@ -176,7 +176,7 @@ index c19b678cfb..7672e31fc0 100644
}
}
diff --git a/src/main/java/net/minecraft/server/ItemPotionThrowable.java b/src/main/java/net/minecraft/server/ItemPotionThrowable.java
index 5d1f118c51..d1beab1ab7 100644
index 5d1f118c513..d1beab1ab72 100644
--- a/src/main/java/net/minecraft/server/ItemPotionThrowable.java
+++ b/src/main/java/net/minecraft/server/ItemPotionThrowable.java
@@ -0,0 +0,0 @@ public class ItemPotionThrowable extends ItemPotion {
@@ -213,7 +213,7 @@ index 5d1f118c51..d1beab1ab7 100644
return InteractionResultWrapper.success(itemstack);
}
diff --git a/src/main/java/net/minecraft/server/ItemSnowball.java b/src/main/java/net/minecraft/server/ItemSnowball.java
index 56ec508959..e6044e654b 100644
index 56ec5089596..e6044e654b7 100644
--- a/src/main/java/net/minecraft/server/ItemSnowball.java
+++ b/src/main/java/net/minecraft/server/ItemSnowball.java
@@ -0,0 +0,0 @@ public class ItemSnowball extends Item {
@@ -251,7 +251,7 @@ index 56ec508959..e6044e654b 100644
/*
if (!entityhuman.abilities.canInstantlyBuild) {
diff --git a/src/main/java/net/minecraft/server/ItemSplashPotion.java b/src/main/java/net/minecraft/server/ItemSplashPotion.java
index 18bd846cee..e71e933fff 100644
index 18bd846ceec..e71e933fffb 100644
--- a/src/main/java/net/minecraft/server/ItemSplashPotion.java
+++ b/src/main/java/net/minecraft/server/ItemSplashPotion.java
@@ -0,0 +0,0 @@ public class ItemSplashPotion extends ItemPotionThrowable {