This is an automated email from the ASF dual-hosted git repository.
remm pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/tomcat.git
The following commit(s) were added to refs/heads/master by this push:
new 3ed7483 Discard large byte buffers on request recycle
3ed7483 is described below
commit 3ed74837215700081a5917d4d871f973dd27745a
Author: remm <[email protected]>
AuthorDate: Thu Jul 18 00:32:38 2019 +0200
Discard large byte buffers on request recycle
With the ByteBuffer based code, buffers allocated when using
setBufferSize with a large value would never be discarded.
---
java/org/apache/catalina/connector/OutputBuffer.java | 10 ++++++++++
webapps/docs/changelog.xml | 4 ++++
2 files changed, 14 insertions(+)
diff --git a/java/org/apache/catalina/connector/OutputBuffer.java
b/java/org/apache/catalina/connector/OutputBuffer.java
index 22c8fa3..5fa8fc2 100644
--- a/java/org/apache/catalina/connector/OutputBuffer.java
+++ b/java/org/apache/catalina/connector/OutputBuffer.java
@@ -58,6 +58,11 @@ public class OutputBuffer extends Writer {
private final Map<Charset, C2BConverter> encoders = new HashMap<>();
+ /**
+ * Default buffer size.
+ */
+ private final int defaultBufferSize;
+
// ----------------------------------------------------- Instance Variables
/**
@@ -128,6 +133,7 @@ public class OutputBuffer extends Writer {
* @param size Buffer size to use
*/
public OutputBuffer(int size) {
+ defaultBufferSize = size;
bb = ByteBuffer.allocate(size);
clear(bb);
cb = CharBuffer.allocate(size);
@@ -188,6 +194,10 @@ public class OutputBuffer extends Writer {
bytesWritten = 0;
charsWritten = 0;
+ if (bb.capacity() > 16 * defaultBufferSize) {
+ // Discard buffers which are too large
+ bb = ByteBuffer.allocate(defaultBufferSize);
+ }
clear(bb);
clear(cb);
closed = false;
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index af61944..20dea22 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -56,6 +56,10 @@
<code>AsyncContext.start(Runnable)</code>, process it using the
standard
error page mechanism. (markt)
</fix>
+ <fix>
+ Discard large byte buffers allocated using setBufferSize when recycling
+ the request. (remm)
+ </fix>
</changelog>
</subsection>
<subsection name="Coyote">
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