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annotate src/org/eclipse/jetty/io/View.java @ 1030:80cad9086593
remove Buffer.isVolatile()
| author | Franklin Schmidt <fschmidt@gmail.com> |
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| date | Thu, 03 Nov 2016 01:10:09 -0600 |
| parents | 4e5e9e3c25b3 |
| children | 921c25a05eaa |
| rev | line source |
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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 * A View on another buffer. Allows operations that do not change the _content or |
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23 * indexes of the backing buffer. |
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24 * |
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25 * |
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26 * |
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27 */ |
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28 public final class View extends AbstractBuffer |
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29 { |
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30 private Buffer _buffer; |
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31 |
| 1005 | 32 /** |
| 33 * @param buffer The <code>Buffer</code> on which we are presenting a <code>View</code>. | |
| 34 * @param mark The initial value of the {@link Buffer#markIndex mark index} | |
| 35 * @param get The initial value of the {@link Buffer#getIndex get index} | |
| 36 * @param put The initial value of the {@link Buffer#putIndex put index} | |
| 37 * @param access The access level - one of the constants from {@link Buffer}. | |
| 38 */ | |
| 39 public View(Buffer buffer, int mark, int get, int put,int access) | |
| 40 { | |
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41 super(READWRITE); |
| 1005 | 42 _buffer=buffer.buffer(); |
| 43 setPutIndex(put); | |
| 44 setGetIndex(get); | |
| 45 setMarkIndex(mark); | |
| 46 _access=access; | |
| 47 } | |
| 48 | |
| 49 public View(Buffer buffer) | |
| 50 { | |
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51 super(READWRITE); |
| 1005 | 52 _buffer=buffer.buffer(); |
| 53 setPutIndex(buffer.putIndex()); | |
| 54 setGetIndex(buffer.getIndex()); | |
| 55 setMarkIndex(buffer.markIndex()); | |
| 56 _access=buffer.isReadOnly()?READONLY:READWRITE; | |
| 57 } | |
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58 |
| 1005 | 59 public View() |
| 60 { | |
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61 super(READWRITE); |
| 1005 | 62 } |
| 63 | |
| 64 /** | |
| 65 * Update view to buffer | |
| 66 */ | |
| 67 public void update(Buffer buffer) | |
| 68 { | |
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69 _access = READWRITE; |
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70 _buffer = buffer.buffer(); |
| 1005 | 71 setGetIndex(0); |
| 72 setPutIndex(buffer.putIndex()); | |
| 73 setGetIndex(buffer.getIndex()); | |
| 74 setMarkIndex(buffer.markIndex()); | |
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75 _access = buffer.isReadOnly()?READONLY:READWRITE; |
| 1005 | 76 } |
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77 |
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78 @Override |
| 1005 | 79 public byte[] array() |
| 80 { | |
| 81 return _buffer.array(); | |
| 82 } | |
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83 |
| 1005 | 84 @Override |
| 85 public Buffer buffer() | |
| 86 { | |
| 87 return _buffer.buffer(); | |
| 88 } | |
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89 |
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90 @Override |
| 1005 | 91 public int capacity() |
| 92 { | |
| 93 return _buffer.capacity(); | |
| 94 } | |
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95 |
| 1005 | 96 @Override |
| 97 public void clear() | |
| 98 { | |
| 99 setMarkIndex(-1); | |
| 100 setGetIndex(0); | |
| 101 setPutIndex(_buffer.getIndex()); | |
| 102 setGetIndex(_buffer.getIndex()); | |
| 103 } | |
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104 |
| 1005 | 105 @Override |
| 106 public void compact() | |
| 107 { | |
| 108 // TODO | |
| 109 } | |
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110 |
| 1005 | 111 /* |
| 112 * (non-Javadoc) | |
| 113 * | |
| 114 * @see java.lang.Object#equals(java.lang.Object) | |
| 115 */ | |
| 116 @Override | |
| 117 public boolean equals(Object obj) | |
| 118 { | |
| 119 return this==obj ||((obj instanceof Buffer)&& obj.equals(this)) || super.equals(obj); | |
| 120 } | |
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121 |
| 1005 | 122 @Override |
| 123 public boolean isReadOnly() | |
| 124 { | |
| 125 return _buffer.isReadOnly(); | |
| 126 } | |
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127 |
| 1005 | 128 @Override |
| 129 public byte peek(int index) | |
| 130 { | |
| 131 return _buffer.peek(index); | |
| 132 } | |
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133 |
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134 @Override |
| 1005 | 135 public int peek(int index, byte[] b, int offset, int length) |
| 136 { | |
| 137 return _buffer.peek(index,b,offset,length); | |
| 138 } | |
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139 |
| 1005 | 140 @Override |
| 141 public Buffer peek(int index, int length) | |
| 142 { | |
| 143 return _buffer.peek(index, length); | |
| 144 } | |
| 145 | |
| 146 @Override | |
| 147 public int poke(int index, Buffer src) | |
| 148 { | |
| 149 return _buffer.poke(index,src); | |
| 150 } | |
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151 |
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152 @Override |
| 1005 | 153 public void poke(int index, byte b) |
| 154 { | |
| 155 _buffer.poke(index,b); | |
| 156 } | |
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157 |
| 1005 | 158 @Override |
| 159 public int poke(int index, byte[] b, int offset, int length) | |
| 160 { | |
| 161 return _buffer.poke(index,b,offset,length); | |
| 162 } | |
| 163 | |
| 164 @Override | |
| 165 public String toString() | |
| 166 { | |
| 167 if (_buffer==null) | |
| 168 return "INVALID"; | |
| 169 return super.toString(); | |
| 170 } | |
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171 } |