1 // ========================================================================
2 // Copyright (c) 2010 Mort Bay Consulting Pty. Ltd.
3 // ------------------------------------------------------------------------
4 // All rights reserved. This program and the accompanying materials
5 // are made available under the terms of the Eclipse Public License v1.0
6 // and Apache License v2.0 which accompanies this distribution.
7 // The Eclipse Public License is available at
8 // http://www.eclipse.org/legal/epl-v10.html
9 // The Apache License v2.0 is available at
10 // http://www.opensource.org/licenses/apache2.0.php
11 // You may elect to redistribute this code under either of these licenses.
12 // ========================================================================
13
14 package org.eclipse.jetty.websocket;
15
16 import org.eclipse.jetty.io.Buffer;
17 import org.eclipse.jetty.io.Buffers;
18 import org.eclipse.jetty.io.Buffers.Type;
19 import org.eclipse.jetty.io.BuffersFactory;
20
21
22 /* ------------------------------------------------------------ */
23 /** The WebSocket Buffer Pool.
24 *
25 * The normal buffers are byte array buffers so that user processes
26 * can access directly. However the generator uses direct buffers
27 * for the final output stage as they are filled in bulk and are more
28 * efficient to flush.
29 */
30 public class WebSocketBuffers
31 {
32 final private int _bufferSize;
33 final private Buffers _buffers;
34 final private int _maxBuffers=-1;
35
36 public WebSocketBuffers(final int bufferSize)
37 {
38 _bufferSize=bufferSize;
39 _buffers = BuffersFactory.newBuffers(Type.DIRECT,bufferSize,Type.INDIRECT,bufferSize,Type.INDIRECT,_maxBuffers);
40 }
41
42 public Buffer getBuffer()
43 {
44 return _buffers.getBuffer();
45 }
46
47 public Buffer getDirectBuffer()
48 {
49 return _buffers.getHeader();
50 }
51
52 public void returnBuffer(Buffer buffer)
53 {
54 _buffers.returnBuffer(buffer);
55 }
56
57 public int getBufferSize()
58 {
59 return _bufferSize;
60 }
61 }