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Improve LongHash performance.

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By: Antony Riley <antony@cyberiantiger.org>
This commit is contained in:
Spigot 2014-06-09 17:52:31 +10:00
parent 226c6d1ef0
commit d81714641a
1 changed files with 13 additions and 4 deletions
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17
CraftBukkit-Patches/0010-LongHash-Tweaks.patch
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@ -1,19 +1,28 @@
From 0ed4d284bbdfffc523e2c2c731443a31df66de15 Mon Sep 17 00:00:00 2001
From c5c6774c86524fbd298556d556af855679b25223 Mon Sep 17 00:00:00 2001
From: md_5 <md_5@live.com.au>
Date: Fri, 21 Jun 2013 17:13:47 +1000
Subject: [PATCH] LongHash Tweaks
diff --git a/src/main/java/org/bukkit/craftbukkit/util/LongHash.java b/src/main/java/org/bukkit/craftbukkit/util/LongHash.java
index 691cafd..9d54472 100644
index 691cafd..fd0b6f9 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/LongHash.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/LongHash.java
@@ -2,7 +2,7 @@ package org.bukkit.craftbukkit.util;
public class LongHash {
public static long toLong(int msw, int lsw) {
- return ((long) msw << 32) + lsw - Integer.MIN_VALUE;
+ return ((long) msw << 32) | (lsw & 0xFFFFFFFF); // Spigot
}
public static int msw(long l) {
@@ -10,6 +10,6 @@ public class LongHash {
}
public static int lsw(long l) {
- return (int) (l & 0xFFFFFFFF) + Integer.MIN_VALUE;
+ return (int) (l) + Integer.MIN_VALUE; // Spigot - remove redundant &
+ return (int) (l & 0xFFFFFFFF);
}
}
diff --git a/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java b/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java
@ -220,5 +229,5 @@ index 0000000..9416f6e
+ }
+}
--
1.8.3.2
1.9.1