diff src/org/eclipse/jetty/io/ThreadLocalBuffers.java @ 802:3428c60d7cfc

replace jetty jars with source
author Franklin Schmidt <fschmidt@gmail.com>
date Wed, 07 Sep 2016 21:15:48 -0600
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/eclipse/jetty/io/ThreadLocalBuffers.java	Wed Sep 07 21:15:48 2016 -0600
@@ -0,0 +1,135 @@
+//
+//  ========================================================================
+//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
+//  ------------------------------------------------------------------------
+//  All rights reserved. This program and the accompanying materials
+//  are made available under the terms of the Eclipse Public License v1.0
+//  and Apache License v2.0 which accompanies this distribution.
+//
+//      The Eclipse Public License is available at
+//      http://www.eclipse.org/legal/epl-v10.html
+//
+//      The Apache License v2.0 is available at
+//      http://www.opensource.org/licenses/apache2.0.php
+//
+//  You may elect to redistribute this code under either of these licenses.
+//  ========================================================================
+//
+
+package org.eclipse.jetty.io;
+
+
+
+/* ------------------------------------------------------------ */
+/** Abstract Buffer pool.
+ * simple unbounded pool of buffers for header, request and response sizes.
+ *
+ */
+public class ThreadLocalBuffers extends AbstractBuffers 
+{
+    /* ------------------------------------------------------------ */
+    private final ThreadLocal<ThreadBuffers> _buffers=new ThreadLocal<ThreadBuffers>()
+    {
+        @Override
+        protected ThreadBuffers initialValue()
+        {
+            return new ThreadBuffers();
+        }
+    };
+
+    /* ------------------------------------------------------------ */
+    public ThreadLocalBuffers(Buffers.Type headerType, int headerSize, Buffers.Type bufferType, int bufferSize, Buffers.Type otherType)
+    {
+        super(headerType,headerSize,bufferType,bufferSize,otherType);
+    }
+
+    /* ------------------------------------------------------------ */
+    public Buffer getBuffer()
+    {
+        ThreadBuffers buffers = _buffers.get();
+        if (buffers._buffer!=null)
+        {
+            Buffer b=buffers._buffer;
+            buffers._buffer=null;
+            return b;
+        }
+
+        if (buffers._other!=null && isBuffer(buffers._other))
+        {
+            Buffer b=buffers._other;
+            buffers._other=null;
+            return b;
+        }
+
+        return newBuffer();
+    }
+
+    /* ------------------------------------------------------------ */
+    public Buffer getHeader()
+    {
+        ThreadBuffers buffers = _buffers.get();
+        if (buffers._header!=null)
+        {
+            Buffer b=buffers._header;
+            buffers._header=null;
+            return b;
+        }
+
+        if (buffers._other!=null && isHeader(buffers._other))
+        {
+            Buffer b=buffers._other;
+            buffers._other=null;
+            return b;
+        }
+
+        return newHeader();
+    }
+
+    /* ------------------------------------------------------------ */
+    public Buffer getBuffer(int size)
+    {
+        ThreadBuffers buffers = _buffers.get();
+        if (buffers._other!=null && buffers._other.capacity()==size)
+        {
+            Buffer b=buffers._other;
+            buffers._other=null;
+            return b;
+        }
+
+        return newBuffer(size);
+    }
+
+    /* ------------------------------------------------------------ */
+    public void returnBuffer(Buffer buffer)
+    {
+        buffer.clear();
+        if (buffer.isVolatile() || buffer.isImmutable())
+            return;
+        
+        ThreadBuffers buffers = _buffers.get();
+        
+        if (buffers._header==null && isHeader(buffer))
+            buffers._header=buffer;
+        else if (buffers._buffer==null && isBuffer(buffer))
+            buffers._buffer=buffer;
+        else
+            buffers._other=buffer;
+    }
+
+
+    /* ------------------------------------------------------------ */
+    @Override
+    public String toString()
+    {
+        return "{{"+getHeaderSize()+","+getBufferSize()+"}}";
+    }
+    
+    /* ------------------------------------------------------------ */
+    /* ------------------------------------------------------------ */
+    protected static class ThreadBuffers
+    {
+        Buffer _buffer;
+        Buffer _header;
+        Buffer _other;
+    }
+}