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| <div class="title">ByteBlockPool.cs</div> </div> |
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| <a href="_byte_block_pool_8cs.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* </span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * this work for additional information regarding copyright ownership.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * (the "License"); you may not use this file except in compliance with</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * limitations under the License.</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">/* Class that Posting and PostingVector use to write byte</span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">* streams into shared fixed-size byte[] arrays. The idea</span></div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">* is to allocate slices of increasing lengths For</span></div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">* example, the first slice is 5 bytes, the next slice is</span></div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">* 14, etc. We start by writing our bytes into the first</span></div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">* 5 bytes. When we hit the end of the slice, we allocate</span></div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">* the next slice and then write the address of the new</span></div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">* slice into the last 4 bytes of the previous slice (the</span></div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">* "forwarding address").</span></div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">*</span></div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">* Each slice is filled with 0's initially, and we mark</span></div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">* the end with a non-zero byte. This way the methods</span></div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">* that are writing into the slice don't need to record</span></div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">* its length and instead allocate a new slice once they</span></div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">* hit a non-zero byte. */</span></div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">using</span> System;</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">using</span> System.Collections.Generic;</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">using</span> Lucene.Net.Support;</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">namespace </span>Lucene.Net.Index</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> {</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div> |
| <div class="line"><a name="l00042"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html"> 42</a></span>  sealed <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html">ByteBlockPool</a></div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  {</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">private</span> <span class="keywordtype">void</span> InitBlock()</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  {</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  byteUpto = <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_documents_writer.html" title="This class accepts multiple added documents and directly writes a single segment file. It does this more efficiently than creating a single segment per document (with DocumentWriter) and doing standard merges on those segments.">DocumentsWriter</a>.BYTE_BLOCK_SIZE;</div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  }</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  </div> |
| <div class="line"><a name="l00049"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool_1_1_allocator.html"> 49</a></span>  <span class="keyword">public</span> <span class="comment">/*internal*/</span> <span class="keyword">abstract</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool_1_1_allocator.html">Allocator</a></div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  {</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">public</span> <span class="comment">/*internal*/</span> <span class="keyword">abstract</span> <span class="keywordtype">void</span> RecycleByteBlocks(byte[][] blocks, <span class="keywordtype">int</span> start, <span class="keywordtype">int</span> end);</div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">public</span> <span class="comment">/*internal*/</span> <span class="keyword">abstract</span> <span class="keywordtype">void</span> RecycleByteBlocks(IList<byte[]> blocks);</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">public</span> <span class="comment">/*internal*/</span> <span class="keyword">abstract</span> byte[] GetByteBlock(<span class="keywordtype">bool</span> trackAllocations);</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  </div> |
| <div class="line"><a name="l00056"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html#a7822ad2aec7f512152842b2263d292d3"> 56</a></span>  <span class="keyword">public</span> byte[][] buffers = <span class="keyword">new</span> byte[10][];</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  </div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">internal</span> <span class="keywordtype">int</span> bufferUpto = - 1; <span class="comment">// Which buffer we are upto</span></div> |
| <div class="line"><a name="l00059"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html#aa35d08085547a7ba69104a8efdf3672f"> 59</a></span>  <span class="keyword">public</span> <span class="keywordtype">int</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html#aa35d08085547a7ba69104a8efdf3672f">byteUpto</a>; <span class="comment">// Where we are in head buffer</span></div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div> |
| <div class="line"><a name="l00061"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html#a00b02f49fb974ec53356856a4a853328"> 61</a></span>  <span class="keyword">public</span> byte[] <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html#a00b02f49fb974ec53356856a4a853328">buffer</a>; <span class="comment">// Current head buffer</span></div> |
| <div class="line"><a name="l00062"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html#a7ada1f24d0341e01ee856d2bdc711ae9"> 62</a></span>  <span class="keyword">public</span> <span class="keywordtype">int</span> byteOffset = - <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_documents_writer.html" title="This class accepts multiple added documents and directly writes a single segment file. It does this more efficiently than creating a single segment per document (with DocumentWriter) and doing standard merges on those segments.">DocumentsWriter</a>.BYTE_BLOCK_SIZE; <span class="comment">// Current head offset</span></div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  </div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">private</span> readonly <span class="keywordtype">bool</span> trackAllocations;</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">private</span> readonly <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool_1_1_allocator.html">Allocator</a> allocator;</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  </div> |
| <div class="line"><a name="l00067"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html#a90a3ace00f03da4a76daf03debcb5042"> 67</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html">ByteBlockPool</a>(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool_1_1_allocator.html">Allocator</a> allocator, <span class="keywordtype">bool</span> trackAllocations)</div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  {</div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  InitBlock();</div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  this.allocator = allocator;</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  this.trackAllocations = trackAllocations;</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  }</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  </div> |
| <div class="line"><a name="l00074"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html#ada38dfed4a6d184b41ee8a2dbdb6951c"> 74</a></span>  <span class="keyword">public</span> <span class="keywordtype">void</span> Reset()</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  {</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (bufferUpto != - 1)</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  {</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// We allocated at least one buffer</span></div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < bufferUpto; i++)</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// Fully zero fill buffers that we fully used</span></div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  System.Array.Clear(buffers[i], 0, buffers[i].Length);</div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  </div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="comment">// Partial zero fill the final buffer</span></div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  System.Array.Clear(buffers[bufferUpto], 0, byteUpto);</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  </div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (bufferUpto > 0)</div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">// Recycle all but the first buffer</span></div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  allocator.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool_1_1_allocator.html#afa9244a26140581f4585c8a563f75762">RecycleByteBlocks</a>(buffers, 1, 1 + bufferUpto);</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  </div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// Re-use the first buffer</span></div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  bufferUpto = 0;</div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  byteUpto = 0;</div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  byteOffset = 0;</div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  buffer = buffers[0];</div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  }</div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  </div> |
| <div class="line"><a name="l00099"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html#a3329d05d933e05141c68c46656a26157"> 99</a></span>  <span class="keyword">public</span> <span class="keywordtype">void</span> NextBuffer()</div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  {</div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">if</span> (1 + bufferUpto == buffers.Length)</div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  {</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  var newBuffers = <span class="keyword">new</span> byte[(int) (buffers.Length * 1.5)][];</div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  Array.Copy(buffers, 0, newBuffers, 0, buffers.Length);</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  buffers = newBuffers;</div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  }</div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  buffer = buffers[1 + bufferUpto] = allocator.GetByteBlock(trackAllocations);</div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  bufferUpto++;</div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  </div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  byteUpto = 0;</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  byteOffset += <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_documents_writer.html" title="This class accepts multiple added documents and directly writes a single segment file. It does this more efficiently than creating a single segment per document (with DocumentWriter) and doing standard merges on those segments.">DocumentsWriter</a>.BYTE_BLOCK_SIZE;</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div> |
| <div class="line"><a name="l00114"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html#a10a8e1f1da7aa3ba7da83639a7aa9f9d"> 114</a></span>  <span class="keyword">public</span> <span class="keywordtype">int</span> NewSlice(<span class="keywordtype">int</span> size)</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  {</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">if</span> (byteUpto > <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_documents_writer.html" title="This class accepts multiple added documents and directly writes a single segment file. It does this more efficiently than creating a single segment per document (with DocumentWriter) and doing standard merges on those segments.">DocumentsWriter</a>.BYTE_BLOCK_SIZE - size)</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  NextBuffer();</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordtype">int</span> upto = byteUpto;</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  byteUpto += size;</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  buffer[byteUpto - 1] = 16;</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">return</span> upto;</div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  }</div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  </div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">// Size of each slice. These arrays should be at most 16</span></div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="comment">// elements (index is encoded with 4 bits). First array</span></div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="comment">// is just a compact way to encode X+1 with a max. Second</span></div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// array is the length of each slice, ie first slice is 5</span></div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// bytes, next slice is 14 bytes, etc.</span></div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keyword">internal</span> <span class="keyword">static</span> readonly <span class="keywordtype">int</span>[] nextLevelArray = <span class="keyword">new</span> <span class="keywordtype">int</span>[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 9};</div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keyword">internal</span> <span class="keyword">static</span> readonly <span class="keywordtype">int</span>[] levelSizeArray = <span class="keyword">new</span> <span class="keywordtype">int</span>[]{5, 14, 20, 30, 40, 40, 80, 80, 120, 200};</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">internal</span> <span class="keyword">static</span> readonly <span class="keywordtype">int</span> FIRST_LEVEL_SIZE = levelSizeArray[0];</div> |
| <div class="line"><a name="l00132"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html#ac43185c51475f9070721584ba8ecd52c"> 132</a></span>  <span class="keyword">public</span> readonly <span class="keyword">static</span> <span class="keywordtype">int</span> FIRST_LEVEL_SIZE_For_NUnit_Test = levelSizeArray[0];</div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  </div> |
| <div class="line"><a name="l00134"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html#a1716f88f5a7d022098065e02663d3edc"> 134</a></span>  <span class="keyword">public</span> <span class="keywordtype">int</span> AllocSlice(byte[] slice, <span class="keywordtype">int</span> upto)</div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  {</div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  </div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordtype">int</span> level = slice[upto] & 15;</div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordtype">int</span> newLevel = nextLevelArray[level];</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordtype">int</span> newSize = levelSizeArray[newLevel];</div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  </div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// Maybe allocate another block</span></div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">if</span> (byteUpto > <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_documents_writer.html" title="This class accepts multiple added documents and directly writes a single segment file. It does this more efficiently than creating a single segment per document (with DocumentWriter) and doing standard merges on those segments.">DocumentsWriter</a>.BYTE_BLOCK_SIZE - newSize)</div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  NextBuffer();</div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  </div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordtype">int</span> newUpto = byteUpto;</div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordtype">int</span> offset = newUpto + byteOffset;</div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  byteUpto += newSize;</div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  </div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// Copy forward the past 3 bytes (which we are about</span></div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// to overwrite with the forwarding address):</span></div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  buffer[newUpto] = slice[upto - 3];</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  buffer[newUpto + 1] = slice[upto - 2];</div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  buffer[newUpto + 2] = slice[upto - 1];</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  </div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="comment">// Write forwarding address at end of last slice:</span></div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  slice[upto - 3] = (byte) (<a class="code" href="class_lucene_1_1_net_1_1_support_1_1_number.html" title="A simple class for number conversions. ">Number</a>.<a class="code" href="class_lucene_1_1_net_1_1_support_1_1_number.html#aafe44e2acf7feacad6abd2a425730644" title="Performs an unsigned bitwise right shift with the specified number ">URShift</a>(offset, 24));</div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  slice[upto - 2] = (byte) (<a class="code" href="class_lucene_1_1_net_1_1_support_1_1_number.html" title="A simple class for number conversions. ">Number</a>.<a class="code" href="class_lucene_1_1_net_1_1_support_1_1_number.html#aafe44e2acf7feacad6abd2a425730644" title="Performs an unsigned bitwise right shift with the specified number ">URShift</a>(offset, 16));</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  slice[upto - 1] = (byte) (<a class="code" href="class_lucene_1_1_net_1_1_support_1_1_number.html" title="A simple class for number conversions. ">Number</a>.<a class="code" href="class_lucene_1_1_net_1_1_support_1_1_number.html#aafe44e2acf7feacad6abd2a425730644" title="Performs an unsigned bitwise right shift with the specified number ">URShift</a>(offset, 8));</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  slice[upto] = (byte) offset;</div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  </div> |
| <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">// Write new level:</span></div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  buffer[byteUpto - 1] = (byte) (16 | newLevel);</div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  </div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">return</span> newUpto + 3;</div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">int</span> FIRST_LEVEL_SIZE_ForNUnit</div> |
| <div class="line"><a name="l00168"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_block_pool.html#a7e8674a909a9e1fb4ac7172299e49daf"> 168</a></span>  {</div> |
| <div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> FIRST_LEVEL_SIZE; }</div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  }</div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  }</div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span> }</div> |
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