From 7a0b80cb9d662c4971c631b53c2ca9bb60ac30ab Mon Sep 17 00:00:00 2001
From: Ludovic Orban <lorban@bitronix.be>
Date: Tue, 14 Jun 2022 17:50:42 +0200
Subject: [PATCH]  #8161 add mod and xml config to configure
 RetainableByteBufferPool

Signed-off-by: Ludovic Orban <lorban@bitronix.be>
---
 .../etc/jetty-retainablebytebufferpool.xml    | 17 ++++++++++
 .../modules/retainablebytebufferpool.mod      | 31 +++++++++++++++++++
 2 files changed, 48 insertions(+)
 create mode 100644 jetty-server/src/main/config/etc/jetty-retainablebytebufferpool.xml
 create mode 100644 jetty-server/src/main/config/modules/retainablebytebufferpool.mod

diff --git a/jetty-server/src/main/config/etc/jetty-retainablebytebufferpool.xml b/jetty-server/src/main/config/etc/jetty-retainablebytebufferpool.xml
new file mode 100644
index 000000000000..e7ac808f2688
--- /dev/null
+++ b/jetty-server/src/main/config/etc/jetty-retainablebytebufferpool.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "https://www.eclipse.org/jetty/configure_10_0.dtd">
+
+<Configure id="Server" class="org.eclipse.jetty.server.Server">
+  <Call name="addBean">
+    <Arg>
+      <New class="org.eclipse.jetty.io.ArrayRetainableByteBufferPool">
+        <Arg type="int"><Property name="jetty.retainableByteBufferPool.minCapacity" default="0"/></Arg>
+        <Arg type="int"><Property name="jetty.retainableByteBufferPool.factor" default="-1"/></Arg>
+        <Arg type="int"><Property name="jetty.retainableByteBufferPool.maxCapacity" default="-1"/></Arg>
+        <Arg type="int"><Property name="jetty.retainableByteBufferPool.maxBucketSize" default="2147483647"/></Arg>
+        <Arg type="long"><Property name="jetty.retainableByteBufferPool.maxHeapMemory" default="0"/></Arg>
+        <Arg type="long"><Property name="jetty.retainableByteBufferPool.maxDirectMemory" default="0"/></Arg>
+      </New>
+    </Arg>
+  </Call>
+</Configure>
diff --git a/jetty-server/src/main/config/modules/retainablebytebufferpool.mod b/jetty-server/src/main/config/modules/retainablebytebufferpool.mod
new file mode 100644
index 000000000000..0199f061f808
--- /dev/null
+++ b/jetty-server/src/main/config/modules/retainablebytebufferpool.mod
@@ -0,0 +1,31 @@
+[description]
+Configures the RetainableByteBufferPool used by ServerConnectors.
+
+[tags]
+retainableByteBufferPool
+
+[xml]
+etc/jetty-retainablebytebufferpool.xml
+
+[ini-template]
+## Minimum capacity of a single ByteBuffer.
+#jetty.retainableByteBufferPool.minCapacity=0
+
+## Maximum capacity of a single ByteBuffer.
+## Requests for ByteBuffers larger than this value results
+## in the ByteBuffer being allocated but not pooled.
+#jetty.retainableByteBufferPool.maxCapacity=65536
+
+## Bucket capacity factor.
+## ByteBuffers are allocated out of buckets that have
+## a capacity that is multiple of this factor.
+#jetty.retainableByteBufferPool.factor=1024
+
+## Maximum size for each bucket.
+#jetty.retainableByteBufferPool.maxBucketSize=2147483647
+
+## Maximum heap memory retainable by the pool (0 for heuristic, -1 for unlimited).
+#jetty.retainableByteBufferPool.maxHeapMemory=0
+
+## Maximum direct memory retainable by the pool (0 for heuristic, -1 for unlimited).
+#jetty.retainableByteBufferPool.maxDirectMemory=0