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https://github.com/PaperMC/Paper.git
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46 lines
1.2 KiB
Diff
46 lines
1.2 KiB
Diff
From f3a8ebcad45891f6cb7d243095d3739c1f1980d2 Mon Sep 17 00:00:00 2001
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From: vemacs <d@nkmem.es>
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Date: Wed, 23 Nov 2016 12:53:43 -0500
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Subject: [PATCH] Misc Utils
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diff --git a/src/main/java/com/destroystokyo/paper/utils/CachedSizeConcurrentLinkedQueue.java b/src/main/java/com/destroystokyo/paper/utils/CachedSizeConcurrentLinkedQueue.java
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new file mode 100644
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index 00000000..d60ecbb1
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--- /dev/null
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+++ b/src/main/java/com/destroystokyo/paper/utils/CachedSizeConcurrentLinkedQueue.java
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@@ -0,0 +1,31 @@
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+package com.destroystokyo.paper.utils;
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+
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+import java.util.concurrent.ConcurrentLinkedQueue;
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+import java.util.concurrent.atomic.LongAdder;
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+
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+public class CachedSizeConcurrentLinkedQueue<E> extends ConcurrentLinkedQueue<E> {
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+ private final LongAdder cachedSize = new LongAdder();
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+
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+ @Override
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+ public boolean add(E e) {
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+ boolean result = super.add(e);
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+ if (result) {
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+ cachedSize.increment();
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+ }
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+ return result;
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+ }
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+
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+ @Override
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+ public E poll() {
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+ E result = super.poll();
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+ if (result != null) {
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+ cachedSize.decrement();
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+ }
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+ return result;
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+ }
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+
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+ @Override
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+ public int size() {
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+ return cachedSize.intValue();
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+ }
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+}
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--
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2.18.0
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