Mercurial Hosting > luan
annotate src/org/eclipse/jetty/io/SimpleBuffers.java @ 941:c948f674a2d5
simplify Timeout
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Tue, 11 Oct 2016 00:34:19 -0600 |
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1 // |
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2 // ======================================================================== |
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
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4 // ------------------------------------------------------------------------ |
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5 // All rights reserved. This program and the accompanying materials |
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6 // are made available under the terms of the Eclipse Public License v1.0 |
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7 // and Apache License v2.0 which accompanies this distribution. |
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8 // |
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9 // The Eclipse Public License is available at |
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10 // http://www.eclipse.org/legal/epl-v10.html |
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11 // |
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12 // The Apache License v2.0 is available at |
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13 // http://www.opensource.org/licenses/apache2.0.php |
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14 // |
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15 // You may elect to redistribute this code under either of these licenses. |
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16 // ======================================================================== |
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17 // |
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18 |
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19 package org.eclipse.jetty.io; |
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20 |
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21 /* ------------------------------------------------------------ */ |
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22 /** SimpleBuffers. |
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23 * Simple implementation of Buffers holder. |
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24 * |
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25 * |
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26 */ |
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27 public class SimpleBuffers implements Buffers |
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28 { |
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29 final Buffer _header; |
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30 final Buffer _buffer; |
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31 boolean _headerOut; |
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32 boolean _bufferOut; |
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33 |
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34 /* ------------------------------------------------------------ */ |
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35 /** |
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36 * |
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37 */ |
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38 public SimpleBuffers(Buffer header, Buffer buffer) |
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39 { |
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40 _header=header; |
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41 _buffer=buffer; |
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42 } |
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43 |
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44 /* ------------------------------------------------------------ */ |
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45 public Buffer getBuffer() |
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46 { |
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47 synchronized(this) |
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48 { |
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49 if (_buffer!=null && !_bufferOut) |
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50 { |
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51 _bufferOut=true; |
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52 return _buffer; |
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53 } |
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54 |
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55 if (_buffer!=null && _header!=null && _header.capacity()==_buffer.capacity() && !_headerOut) |
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56 { |
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57 _headerOut=true; |
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58 return _header; |
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59 } |
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60 |
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61 if (_buffer!=null) |
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62 return new ByteArrayBuffer(_buffer.capacity()); |
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63 return new ByteArrayBuffer(4096); |
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64 } |
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65 } |
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66 |
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67 /* ------------------------------------------------------------ */ |
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68 public Buffer getHeader() |
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69 { |
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70 synchronized(this) |
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71 { |
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72 if (_header!=null && !_headerOut) |
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73 { |
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74 _headerOut=true; |
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75 return _header; |
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76 } |
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77 |
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78 if (_buffer!=null && _header!=null && _header.capacity()==_buffer.capacity() && !_bufferOut) |
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79 { |
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80 _bufferOut=true; |
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81 return _buffer; |
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82 } |
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83 |
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84 if (_header!=null) |
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85 return new ByteArrayBuffer(_header.capacity()); |
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86 return new ByteArrayBuffer(4096); |
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87 } |
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88 } |
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89 |
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90 /* ------------------------------------------------------------ */ |
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91 public Buffer getBuffer(int size) |
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92 { |
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93 synchronized(this) |
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94 { |
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95 if (_header!=null && _header.capacity()==size) |
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96 return getHeader(); |
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97 if (_buffer!=null && _buffer.capacity()==size) |
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98 return getBuffer(); |
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99 return null; |
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100 } |
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101 } |
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102 |
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103 /* ------------------------------------------------------------ */ |
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104 public void returnBuffer(Buffer buffer) |
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105 { |
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106 synchronized(this) |
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107 { |
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108 buffer.clear(); |
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109 if (buffer==_header) |
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110 _headerOut=false; |
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111 if (buffer==_buffer) |
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112 _bufferOut=false; |
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113 } |
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114 } |
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115 |
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116 |
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117 } |