Mercurial Hosting > luan
diff src/org/eclipse/jetty/io/ThreadLocalBuffers.java @ 802:3428c60d7cfc
replace jetty jars with source
author | Franklin Schmidt <fschmidt@gmail.com> |
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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; + } +}