Paper/CraftBukkit-Patches/0066-Optimize-DataWatcher.patch

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From fa836fb4ebe6b6827b60b56a600dd714f823dd08 Mon Sep 17 00:00:00 2001
2014-04-12 06:18:37 +02:00
From: md_5 <git@md-5.net>
Date: Fri, 13 Dec 2013 11:45:47 +1100
Subject: [PATCH] Optimize DataWatcher
Use primitive orientated collections, as well as more effective copies across collections.
diff --git a/src/main/java/net/minecraft/server/DataWatcher.java b/src/main/java/net/minecraft/server/DataWatcher.java
index 90a2a80..cca6bd9 100644
--- a/src/main/java/net/minecraft/server/DataWatcher.java
+++ b/src/main/java/net/minecraft/server/DataWatcher.java
@@ -14,8 +14,13 @@ public class DataWatcher {
private final Entity a;
private boolean b = true;
- private static final HashMap c = new HashMap();
- private final Map d = new HashMap();
+ // Spigot Start
+ private static final gnu.trove.map.TObjectIntMap classToId = new gnu.trove.map.hash.TObjectIntHashMap( 10, 0.5f, -1 );
+ private final gnu.trove.map.TIntObjectMap dataValues = new gnu.trove.map.hash.TIntObjectHashMap( 10, 0.5f, -1 );
+ // These exist as an attempt at backwards compatability for (broken) NMS plugins
+ private static final Map c = gnu.trove.TDecorators.wrap( classToId );
+ private final Map d = gnu.trove.TDecorators.wrap( dataValues );
+ // Spigot End
private boolean e;
private ReadWriteLock f = new ReentrantReadWriteLock();
@@ -24,19 +29,19 @@ public class DataWatcher {
}
public void a(int i, Object object) {
- Integer integer = (Integer) c.get(object.getClass());
+ int integer = classToId.get(object.getClass()); // Spigot
- if (integer == null) {
+ if (integer == -1) { // Spigot
throw new IllegalArgumentException("Unknown data type: " + object.getClass());
} else if (i > 31) {
throw new IllegalArgumentException("Data value id is too big with " + i + "! (Max is " + 31 + ")");
- } else if (this.d.containsKey(Integer.valueOf(i))) {
+ } else if (this.dataValues.containsKey(i)) { // Spigot
throw new IllegalArgumentException("Duplicate id value for " + i + "!");
} else {
- WatchableObject watchableobject = new WatchableObject(integer.intValue(), i, object);
+ WatchableObject watchableobject = new WatchableObject(integer, i, object); // Spigot
this.f.writeLock().lock();
- this.d.put(Integer.valueOf(i), watchableobject);
+ this.dataValues.put(i, watchableobject); // Spigot
this.f.writeLock().unlock();
this.b = false;
}
@@ -46,7 +51,7 @@ public class DataWatcher {
WatchableObject watchableobject = new WatchableObject(j, i, null);
this.f.writeLock().lock();
- this.d.put(Integer.valueOf(i), watchableobject);
+ this.dataValues.put(i, watchableobject); // Spigot
this.f.writeLock().unlock();
this.b = false;
}
@@ -81,7 +86,7 @@ public class DataWatcher {
WatchableObject watchableobject;
try {
- watchableobject = (WatchableObject) this.d.get(Integer.valueOf(i));
+ watchableobject = (WatchableObject) this.dataValues.get(i); // Spigot
} catch (Throwable throwable) {
CrashReport crashreport = CrashReport.a(throwable, "Getting synched entity data");
CrashReportSystemDetails crashreportsystemdetails = crashreport.a("Synched entity data");
@@ -133,7 +138,7 @@ public class DataWatcher {
if (this.e) {
this.f.readLock().lock();
- Iterator iterator = this.d.values().iterator();
+ Iterator iterator = this.dataValues.valueCollection().iterator(); // Spigot
while (iterator.hasNext()) {
WatchableObject watchableobject = (WatchableObject) iterator.next();
@@ -157,7 +162,7 @@ public class DataWatcher {
public void a(PacketDataSerializer packetdataserializer) {
this.f.readLock().lock();
- Iterator iterator = this.d.values().iterator();
+ Iterator iterator = this.dataValues.valueCollection().iterator(); // Spigot
while (iterator.hasNext()) {
WatchableObject watchableobject = (WatchableObject) iterator.next();
@@ -170,18 +175,11 @@ public class DataWatcher {
}
public List c() {
- ArrayList arraylist = null;
+ ArrayList arraylist = new ArrayList(); // Spigot
this.f.readLock().lock();
- WatchableObject watchableobject;
-
- for (Iterator iterator = this.d.values().iterator(); iterator.hasNext(); arraylist.add(watchableobject)) {
- watchableobject = (WatchableObject) iterator.next();
- if (arraylist == null) {
- arraylist = new ArrayList();
- }
- }
+ arraylist.addAll(this.dataValues.valueCollection()); // Spigot
this.f.readLock().unlock();
return arraylist;
@@ -295,12 +293,14 @@ public class DataWatcher {
}
static {
- c.put(Byte.class, Integer.valueOf(0));
- c.put(Short.class, Integer.valueOf(1));
- c.put(Integer.class, Integer.valueOf(2));
- c.put(Float.class, Integer.valueOf(3));
- c.put(String.class, Integer.valueOf(4));
- c.put(ItemStack.class, Integer.valueOf(5));
- c.put(ChunkCoordinates.class, Integer.valueOf(6));
+ // Spigot Start - remove valueOf
+ classToId.put(Byte.class, 0);
+ classToId.put(Short.class, 1);
+ classToId.put(Integer.class, 2);
+ classToId.put(Float.class, 3);
+ classToId.put(String.class, 4);
+ classToId.put(ItemStack.class, 5);
+ classToId.put(ChunkCoordinates.class, 6);
+ // Spigot End
}
}
--
1.8.3.2