[tomcat] 06/11: Back-port performance improvement for setting current thread name

[markt]

This is an automated email from the ASF dual-hosted git repository.

markt pushed a commit to branch 7.0.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git

commit 4e88cfc6b868f2af5d84b6ef9e76f74b4b1d754d
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Wed Jul 24 10:59:52 2019 +0100

    Back-port performance improvement for setting current thread name
---
 java/org/apache/catalina/connector/CoyoteAdapter.java | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/java/org/apache/catalina/connector/CoyoteAdapter.java 
b/java/org/apache/catalina/connector/CoyoteAdapter.java
index 02e5fbf..5245e84 100644
--- a/java/org/apache/catalina/connector/CoyoteAdapter.java
+++ b/java/org/apache/catalina/connector/CoyoteAdapter.java
@@ -81,6 +81,16 @@ public class CoyoteAdapter implements Adapter {
         
Boolean.parseBoolean(System.getProperty("org.apache.catalina.connector.CoyoteAdapter.ALLOW_BACKSLASH",
 "false"));
 
 
+    private static final ThreadLocal<String> THREAD_NAME =
+            new ThreadLocal<String>() {
+
+                @Override
+                protected String initialValue() {
+                    return Thread.currentThread().getName();
+                }
+
+    };
+
     // ----------------------------------------------------------- Constructors
 
 
@@ -273,7 +283,7 @@ public class CoyoteAdapter implements Adapter {
         boolean success = true;
         AsyncContextImpl asyncConImpl = request.getAsyncContextInternal();
 
-        
req.getRequestProcessor().setWorkerThreadName(Thread.currentThread().getName());
+        req.getRequestProcessor().setWorkerThreadName(THREAD_NAME.get());
 
         try {
             if (!request.isAsync() && !comet) {
@@ -428,10 +438,11 @@ public class CoyoteAdapter implements Adapter {
         boolean async = false;
         boolean postParseSuccess = false;
 
+        req.getRequestProcessor().setWorkerThreadName(THREAD_NAME.get());
+
         try {
             // Parse and set Catalina and configuration specific
             // request parameters
-            
req.getRequestProcessor().setWorkerThreadName(Thread.currentThread().getName());
             postParseSuccess = postParseRequest(req, request, res, response);
             if (postParseSuccess) {
                 //check valves if we support async


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