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<div class="title">rle-encoding.h</div> </div>
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<a href="rle-encoding_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2012 Cloudera Inc.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// you may not use this file except in compliance with the License.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// You may obtain a copy of the License at</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment">// distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment">// See the License for the specific language governing permissions and</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment">// limitations under the License.</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;</div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#ifndef IMPALA_RLE_ENCODING_H</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define IMPALA_RLE_ENCODING_H</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &lt;math.h&gt;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="compiler-util_8h.html">common/compiler-util.h</a>&quot;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="bit-stream-utils_8inline_8h.html">util/bit-stream-utils.inline.h</a>&quot;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="bit-util_8h.html">util/bit-util.h</a>&quot;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="keyword">namespace </span>impala {</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;<span class="comment"></span><span class="comment">//</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;<span class="comment"></span><span class="comment">//</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;<span class="comment"></span><span class="comment">//</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;<span class="comment"></span><span class="comment">//</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160;<span class="comment"></span><span class="comment">//</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;</div>
<div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="classimpala_1_1RleDecoder.html"> 77</a></span>&#160;<span class="keyword">class </span><a class="code" href="classimpala_1_1RleDecoder.html">RleDecoder</a> {</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="classimpala_1_1RleDecoder.html#adde04341cd1436e2144761539befeb84"> 81</a></span>&#160; <a class="code" href="classimpala_1_1RleDecoder.html#adde04341cd1436e2144761539befeb84">RleDecoder</a>(uint8_t* buffer, <span class="keywordtype">int</span> buffer_len, <span class="keywordtype">int</span> bit_width)</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; : <a class="code" href="classimpala_1_1RleDecoder.html#a0f8f070a454a0fcd3f1139c31f247c63">bit_reader_</a>(buffer, buffer_len),</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <a class="code" href="classimpala_1_1RleDecoder.html#aff32874eedf659c90c13e7b92ce4e9a2">bit_width_</a>(bit_width),</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <a class="code" href="classimpala_1_1RleDecoder.html#af82d1ca8d5496040b4428377b4bc7155">current_value_</a>(0),</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <a class="code" href="classimpala_1_1RleDecoder.html#a2d95e59b922993f708207d386298040c">repeat_count_</a>(0),</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <a class="code" href="classimpala_1_1RleDecoder.html#a877169623a30f30f50e1e5322a8a435a">literal_count_</a>(0) {</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; DCHECK_GE(<a class="code" href="classimpala_1_1RleDecoder.html#aff32874eedf659c90c13e7b92ce4e9a2">bit_width_</a>, 0);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; DCHECK_LE(<a class="code" href="classimpala_1_1RleDecoder.html#aff32874eedf659c90c13e7b92ce4e9a2">bit_width_</a>, 64);</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; }</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;</div>
<div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="classimpala_1_1RleDecoder.html#a6bb0768fa4fd51118d536f6a44fcdc91"> 91</a></span>&#160; <a class="code" href="classimpala_1_1RleDecoder.html#a6bb0768fa4fd51118d536f6a44fcdc91">RleDecoder</a>() {}</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1RleDecoder.html#a249483a95b175ad3ec2fd21cbdd384f5">Get</a>(T* val);</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="classimpala_1_1RleDecoder.html#a0f8f070a454a0fcd3f1139c31f247c63"> 98</a></span>&#160; <a class="code" href="classimpala_1_1BitReader.html">BitReader</a> <a class="code" href="classimpala_1_1RleDecoder.html#a0f8f070a454a0fcd3f1139c31f247c63">bit_reader_</a>;</div>
<div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="classimpala_1_1RleDecoder.html#aff32874eedf659c90c13e7b92ce4e9a2"> 99</a></span>&#160; <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1RleDecoder.html#aff32874eedf659c90c13e7b92ce4e9a2">bit_width_</a>;</div>
<div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="classimpala_1_1RleDecoder.html#af82d1ca8d5496040b4428377b4bc7155"> 100</a></span>&#160; <a class="code" href="classuint64__t.html">uint64_t</a> <a class="code" href="classimpala_1_1RleDecoder.html#af82d1ca8d5496040b4428377b4bc7155">current_value_</a>;</div>
<div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="classimpala_1_1RleDecoder.html#a2d95e59b922993f708207d386298040c"> 101</a></span>&#160; uint32_t <a class="code" href="classimpala_1_1RleDecoder.html#a2d95e59b922993f708207d386298040c">repeat_count_</a>;</div>
<div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="classimpala_1_1RleDecoder.html#a877169623a30f30f50e1e5322a8a435a"> 102</a></span>&#160; uint32_t <a class="code" href="classimpala_1_1RleDecoder.html#a877169623a30f30f50e1e5322a8a435a">literal_count_</a>;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;};</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;</div>
<div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html"> 111</a></span>&#160;<span class="keyword">class </span><a class="code" href="classimpala_1_1RleEncoder.html">RleEncoder</a> {</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#ae8d541a9367301cbaa9c0ef1faa70856"> 119</a></span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#ae8d541a9367301cbaa9c0ef1faa70856">RleEncoder</a>(uint8_t* <a class="code" href="classimpala_1_1RleEncoder.html#a69a504bd942d4e3489258fa9dc6f969a">buffer</a>, <span class="keywordtype">int</span> buffer_len, <span class="keywordtype">int</span> bit_width)</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; : <a class="code" href="classimpala_1_1RleEncoder.html#a6a4315a9e5bba6b9487d85611795015f">bit_width_</a>(bit_width),</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">bit_writer_</a>(buffer, buffer_len) {</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; DCHECK_GE(<a class="code" href="classimpala_1_1RleEncoder.html#a6a4315a9e5bba6b9487d85611795015f">bit_width_</a>, 1);</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; DCHECK_LE(<a class="code" href="classimpala_1_1RleEncoder.html#a6a4315a9e5bba6b9487d85611795015f">bit_width_</a>, 64);</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a3ea4c2080b477c0116f934a652556c70">max_run_byte_size_</a> = <a class="code" href="classimpala_1_1RleEncoder.html#a526b08c19c9e81ce69b4e3fa355e568f">MinBufferSize</a>(bit_width);</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; DCHECK_GE(buffer_len, <a class="code" href="classimpala_1_1RleEncoder.html#a3ea4c2080b477c0116f934a652556c70">max_run_byte_size_</a>) &lt;&lt; <span class="stringliteral">&quot;Input buffer not big enough.&quot;</span>;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#ab57915a7b0ca64ee1e640f66fc92afc3">Clear</a>();</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; }</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160;</div>
<div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a526b08c19c9e81ce69b4e3fa355e568f"> 132</a></span>&#160; <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1RleEncoder.html#a526b08c19c9e81ce69b4e3fa355e568f">MinBufferSize</a>(<span class="keywordtype">int</span> bit_width) {</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <span class="keywordtype">int</span> max_literal_run_size = 1 +</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <a class="code" href="classimpala_1_1BitUtil.html#a372c4cce3b2fd79c710ec36d01afda07">BitUtil::Ceil</a>(<a class="code" href="classimpala_1_1RleEncoder.html#aa2edeb56adf31302aac09c5a761d8a72">MAX_VALUES_PER_LITERAL_RUN</a> * bit_width, 8);</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="keywordtype">int</span> max_repeated_run_size = <a class="code" href="classimpala_1_1BitReader.html#a82d53654593c787d056b6186f50a941b">BitReader::MAX_VLQ_BYTE_LEN</a> + <a class="code" href="classimpala_1_1BitUtil.html#a372c4cce3b2fd79c710ec36d01afda07">BitUtil::Ceil</a>(bit_width, 8);</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="keywordflow">return</span> std::max(max_literal_run_size, max_repeated_run_size);</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; }</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160;</div>
<div class="line"><a name="l00142"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#ada8347d90efafb040133874037f3af87"> 142</a></span>&#160; <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1RleEncoder.html#ada8347d90efafb040133874037f3af87">MaxBufferSize</a>(<span class="keywordtype">int</span> bit_width, <span class="keywordtype">int</span> num_values) {</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keywordtype">int</span> bytes_per_run = <a class="code" href="classimpala_1_1BitUtil.html#a372c4cce3b2fd79c710ec36d01afda07">BitUtil::Ceil</a>(bit_width * <a class="code" href="classimpala_1_1RleEncoder.html#aa2edeb56adf31302aac09c5a761d8a72">MAX_VALUES_PER_LITERAL_RUN</a>, 8.0);</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; <span class="keywordtype">int</span> num_runs = <a class="code" href="classimpala_1_1BitUtil.html#a372c4cce3b2fd79c710ec36d01afda07">BitUtil::Ceil</a>(num_values, MAX_VALUES_PER_LITERAL_RUN);</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <span class="keywordtype">int</span> literal_max_size = num_runs + num_runs * bytes_per_run;</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; <span class="keywordflow">return</span> std::max(<a class="code" href="classimpala_1_1RleEncoder.html#a526b08c19c9e81ce69b4e3fa355e568f">MinBufferSize</a>(bit_width), literal_max_size);</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; }</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1RleEncoder.html#a8040c037f3b5abbe1a014c5bf2119dc1">Put</a>(<a class="code" href="classuint64__t.html">uint64_t</a> value);</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1RleEncoder.html#a42de9e2eaadc17ccc243ca2bb4be4859">Flush</a>();</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1RleEncoder.html#ab57915a7b0ca64ee1e640f66fc92afc3">Clear</a>();</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160;</div>
<div class="line"><a name="l00161"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a69a504bd942d4e3489258fa9dc6f969a"> 161</a></span>&#160; uint8_t* <a class="code" href="classimpala_1_1RleEncoder.html#a69a504bd942d4e3489258fa9dc6f969a">buffer</a>() { <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">bit_writer_</a>.<a class="code" href="classimpala_1_1BitWriter.html#af0b648c79e0484b4559b445eee296a32">buffer</a>(); }</div>
<div class="line"><a name="l00162"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a25b97dd185bb0e633e24a32aec7d5b16"> 162</a></span>&#160; int32_t <a class="code" href="classimpala_1_1RleEncoder.html#a25b97dd185bb0e633e24a32aec7d5b16">len</a>() { <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">bit_writer_</a>.<a class="code" href="classimpala_1_1BitWriter.html#a556a5c41e337ace2f621f84d6b86e285">bytes_written</a>(); }</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1RleEncoder.html#a968549e6e82ae6b8487213d0c965dfee">FlushBufferedValues</a>(<span class="keywordtype">bool</span> done);</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160;</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1RleEncoder.html#ac7226051efa7c3459c93eb7a91b3ef86">FlushLiteralRun</a>(<span class="keywordtype">bool</span> update_indicator_byte);</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1RleEncoder.html#acd7257d9930bb73cbbaac0398a32b7e3">FlushRepeatedRun</a>();</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1RleEncoder.html#a8e3187630cead6a3f66fdb1913fa3c79">CheckBufferFull</a>();</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160;</div>
<div class="line"><a name="l00188"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#aa2edeb56adf31302aac09c5a761d8a72"> 188</a></span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1RleEncoder.html#aa2edeb56adf31302aac09c5a761d8a72">MAX_VALUES_PER_LITERAL_RUN</a> = (1 &lt;&lt; 6) * 8;</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160;</div>
<div class="line"><a name="l00191"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a6a4315a9e5bba6b9487d85611795015f"> 191</a></span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1RleEncoder.html#a6a4315a9e5bba6b9487d85611795015f">bit_width_</a>;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160;</div>
<div class="line"><a name="l00194"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586"> 194</a></span>&#160; <a class="code" href="classimpala_1_1BitWriter.html">BitWriter</a> <a class="code" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">bit_writer_</a>;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160;</div>
<div class="line"><a name="l00197"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a66545ef6a3d5bd006c310cf9ce2ec25a"> 197</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1RleEncoder.html#a66545ef6a3d5bd006c310cf9ce2ec25a">buffer_full_</a>;</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160;</div>
<div class="line"><a name="l00200"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a3ea4c2080b477c0116f934a652556c70"> 200</a></span>&#160; <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1RleEncoder.html#a3ea4c2080b477c0116f934a652556c70">max_run_byte_size_</a>;</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160;</div>
<div class="line"><a name="l00205"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#abe013073ded278d0fa5117b1e2813caf"> 205</a></span>&#160; int64_t <a class="code" href="classimpala_1_1RleEncoder.html#abe013073ded278d0fa5117b1e2813caf">buffered_values_</a>[8];</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160;</div>
<div class="line"><a name="l00208"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128"> 208</a></span>&#160; <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a>;</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160;</div>
<div class="line"><a name="l00214"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#adf81da88d825c9140c17b49339052611"> 214</a></span>&#160; int64_t <a class="code" href="classimpala_1_1RleEncoder.html#adf81da88d825c9140c17b49339052611">current_value_</a>;</div>
<div class="line"><a name="l00215"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25"> 215</a></span>&#160; <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a>;</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160;</div>
<div class="line"><a name="l00220"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8"> 220</a></span>&#160; <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a>;</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160;</div>
<div class="line"><a name="l00225"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a139ef636b4f3d53b3d7b85f61cc55a7c"> 225</a></span>&#160; uint8_t* <a class="code" href="classimpala_1_1RleEncoder.html#a139ef636b4f3d53b3d7b85f61cc55a7c">literal_indicator_byte_</a>;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160;};</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160;</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00229"></a><span class="lineno"><a class="line" href="classimpala_1_1RleDecoder.html#a249483a95b175ad3ec2fd21cbdd384f5"> 229</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1RleDecoder.html#a249483a95b175ad3ec2fd21cbdd384f5">RleDecoder::Get</a>(T* val) {</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="compiler-util_8h.html#a9acc330d508b9a3b775cfdf7ce405e7d">UNLIKELY</a>(<a class="code" href="classimpala_1_1RleDecoder.html#a877169623a30f30f50e1e5322a8a435a">literal_count_</a> == 0 &amp;&amp; <a class="code" href="classimpala_1_1RleDecoder.html#a2d95e59b922993f708207d386298040c">repeat_count_</a> == 0)) {</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; <span class="comment">// Read the next run&#39;s indicator int, it could be a literal or repeated run</span></div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; <span class="comment">// The int is encoded as a vlq-encoded value.</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; int32_t indicator_value = 0;</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; <span class="keywordtype">bool</span> result = <a class="code" href="classimpala_1_1RleDecoder.html#a0f8f070a454a0fcd3f1139c31f247c63">bit_reader_</a>.<a class="code" href="classimpala_1_1BitReader.html#a9b43f9b49478ce5b78adea9e651ba170">GetVlqInt</a>(&amp;indicator_value);</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; <span class="keywordflow">if</span> (!result) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160;</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; <span class="comment">// lsb indicates if it is a literal run or repeated run</span></div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="keywordtype">bool</span> is_literal = indicator_value &amp; 1;</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; <span class="keywordflow">if</span> (is_literal) {</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; <a class="code" href="classimpala_1_1RleDecoder.html#a877169623a30f30f50e1e5322a8a435a">literal_count_</a> = (indicator_value &gt;&gt; 1) * 8;</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; <a class="code" href="classimpala_1_1RleDecoder.html#a2d95e59b922993f708207d386298040c">repeat_count_</a> = indicator_value &gt;&gt; 1;</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; <span class="keywordtype">bool</span> result = <a class="code" href="classimpala_1_1RleDecoder.html#a0f8f070a454a0fcd3f1139c31f247c63">bit_reader_</a>.<a class="code" href="classimpala_1_1BitReader.html#a868c7d0fb2b466b6bc6ed357e4137635">GetAligned</a>&lt;T&gt;(</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; <a class="code" href="classimpala_1_1BitUtil.html#a372c4cce3b2fd79c710ec36d01afda07">BitUtil::Ceil</a>(<a class="code" href="classimpala_1_1RleDecoder.html#aff32874eedf659c90c13e7b92ce4e9a2">bit_width_</a>, 8), <span class="keyword">reinterpret_cast&lt;</span>T*<span class="keyword">&gt;</span>(&amp;<a class="code" href="classimpala_1_1RleDecoder.html#af82d1ca8d5496040b4428377b4bc7155">current_value_</a>));</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; DCHECK(result);</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; }</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; }</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160;</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="compiler-util_8h.html#a262afcfe437f4addb13fb1b47a6a7086">LIKELY</a>(<a class="code" href="classimpala_1_1RleDecoder.html#a2d95e59b922993f708207d386298040c">repeat_count_</a> &gt; 0)) {</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; *val = <a class="code" href="classimpala_1_1RleDecoder.html#af82d1ca8d5496040b4428377b4bc7155">current_value_</a>;</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; --<a class="code" href="classimpala_1_1RleDecoder.html#a2d95e59b922993f708207d386298040c">repeat_count_</a>;</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; DCHECK(<a class="code" href="classimpala_1_1RleDecoder.html#a877169623a30f30f50e1e5322a8a435a">literal_count_</a> &gt; 0);</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; <span class="keywordtype">bool</span> result = <a class="code" href="classimpala_1_1RleDecoder.html#a0f8f070a454a0fcd3f1139c31f247c63">bit_reader_</a>.<a class="code" href="classimpala_1_1BitReader.html#a6fb11125149229ec58ec2340d7d457c8">GetValue</a>(<a class="code" href="classimpala_1_1RleDecoder.html#aff32874eedf659c90c13e7b92ce4e9a2">bit_width_</a>, val);</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; DCHECK(result);</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; --<a class="code" href="classimpala_1_1RleDecoder.html#a877169623a30f30f50e1e5322a8a435a">literal_count_</a>;</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; }</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160;</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160;}</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160;</div>
<div class="line"><a name="l00264"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a8040c037f3b5abbe1a014c5bf2119dc1"> 264</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1RleEncoder.html#a8040c037f3b5abbe1a014c5bf2119dc1">RleEncoder::Put</a>(<a class="code" href="classuint64__t.html">uint64_t</a> value) {</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160; DCHECK(<a class="code" href="classimpala_1_1RleEncoder.html#a6a4315a9e5bba6b9487d85611795015f">bit_width_</a> == 64 || value &lt; (1LL &lt;&lt; <a class="code" href="classimpala_1_1RleEncoder.html#a6a4315a9e5bba6b9487d85611795015f">bit_width_</a>));</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="compiler-util_8h.html#a9acc330d508b9a3b775cfdf7ce405e7d">UNLIKELY</a>(<a class="code" href="classimpala_1_1RleEncoder.html#a66545ef6a3d5bd006c310cf9ce2ec25a">buffer_full_</a>)) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160;</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="compiler-util_8h.html#a262afcfe437f4addb13fb1b47a6a7086">LIKELY</a>(<a class="code" href="classimpala_1_1RleEncoder.html#adf81da88d825c9140c17b49339052611">current_value_</a> == value)) {</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; ++<a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a>;</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a> &gt; 8) {</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; <span class="comment">// This is just a continuation of the current run, no need to buffer the</span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; <span class="comment">// values.</span></div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; <span class="comment">// Note that this is the fast path for long repeated runs.</span></div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; }</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a> &gt;= 8) {</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; <span class="comment">// We had a run that was long enough but it has ended. Flush the</span></div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; <span class="comment">// current repeated run.</span></div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; DCHECK_EQ(<a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a>, 0);</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#acd7257d9930bb73cbbaac0398a32b7e3">FlushRepeatedRun</a>();</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; }</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a> = 1;</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#adf81da88d825c9140c17b49339052611">current_value_</a> = value;</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; }</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160;</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#abe013073ded278d0fa5117b1e2813caf">buffered_values_</a>[<a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a>] = value;</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; <span class="keywordflow">if</span> (++<a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a> == 8) {</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; DCHECK_EQ(<a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> % 8, 0);</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a968549e6e82ae6b8487213d0c965dfee">FlushBufferedValues</a>(<span class="keyword">false</span>);</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; }</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160;}</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160;</div>
<div class="line"><a name="l00295"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#ac7226051efa7c3459c93eb7a91b3ef86"> 295</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1RleEncoder.html#ac7226051efa7c3459c93eb7a91b3ef86">RleEncoder::FlushLiteralRun</a>(<span class="keywordtype">bool</span> update_indicator_byte) {</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classimpala_1_1RleEncoder.html#a139ef636b4f3d53b3d7b85f61cc55a7c">literal_indicator_byte_</a> == NULL) {</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; <span class="comment">// The literal indicator byte has not been reserved yet, get one now.</span></div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a139ef636b4f3d53b3d7b85f61cc55a7c">literal_indicator_byte_</a> = <a class="code" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">bit_writer_</a>.<a class="code" href="classimpala_1_1BitWriter.html#ac2497dce674f6dfdc6b29049ccfb2d43">GetNextBytePtr</a>();</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160; DCHECK(<a class="code" href="classimpala_1_1RleEncoder.html#a139ef636b4f3d53b3d7b85f61cc55a7c">literal_indicator_byte_</a> != NULL);</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160; }</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160;</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; <span class="comment">// Write all the buffered values as bit packed literals</span></div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; <a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a>; ++i) {</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160; <span class="keywordtype">bool</span> success = <a class="code" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">bit_writer_</a>.<a class="code" href="classimpala_1_1BitWriter.html#ae21363cc6a60255901c4fbfe12401a97">PutValue</a>(<a class="code" href="classimpala_1_1RleEncoder.html#abe013073ded278d0fa5117b1e2813caf">buffered_values_</a>[i], <a class="code" href="classimpala_1_1RleEncoder.html#a6a4315a9e5bba6b9487d85611795015f">bit_width_</a>);</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160; DCHECK(success) &lt;&lt; <span class="stringliteral">&quot;There is a bug in using CheckBufferFull()&quot;</span>;</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; }</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160; num_buffered_values_ = 0;</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160;</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; <span class="keywordflow">if</span> (update_indicator_byte) {</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160; <span class="comment">// At this point we need to write the indicator byte for the literal run.</span></div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160; <span class="comment">// We only reserve one byte, to allow for streaming writes of literal values.</span></div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; <span class="comment">// The logic makes sure we flush literal runs often enough to not overrun</span></div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; <span class="comment">// the 1 byte.</span></div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160; DCHECK_EQ(<a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> % 8, 0);</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160; <span class="keywordtype">int</span> num_groups = <a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> / 8;</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; int32_t indicator_value = (num_groups &lt;&lt; 1) | 1;</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160; DCHECK_EQ(indicator_value &amp; 0xFFFFFF00, 0);</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; *<a class="code" href="classimpala_1_1RleEncoder.html#a139ef636b4f3d53b3d7b85f61cc55a7c">literal_indicator_byte_</a> = indicator_value;</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a139ef636b4f3d53b3d7b85f61cc55a7c">literal_indicator_byte_</a> = NULL;</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> = 0;</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a8e3187630cead6a3f66fdb1913fa3c79">CheckBufferFull</a>();</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; }</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160;}</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160;</div>
<div class="line"><a name="l00325"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#acd7257d9930bb73cbbaac0398a32b7e3"> 325</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1RleEncoder.html#acd7257d9930bb73cbbaac0398a32b7e3">RleEncoder::FlushRepeatedRun</a>() {</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160; DCHECK_GT(<a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a>, 0);</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160; <span class="keywordtype">bool</span> result = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160; <span class="comment">// The lsb of 0 indicates this is a repeated run</span></div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; int32_t indicator_value = <a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a> &lt;&lt; 1 | 0;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; result &amp;= <a class="code" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">bit_writer_</a>.<a class="code" href="classimpala_1_1BitWriter.html#a002cb318632b647a3ff75ebfb224e3e2">PutVlqInt</a>(indicator_value);</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; result &amp;= <a class="code" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">bit_writer_</a>.<a class="code" href="classimpala_1_1BitWriter.html#a9306b1719419818d0b97201bb01795f4">PutAligned</a>(<a class="code" href="classimpala_1_1RleEncoder.html#adf81da88d825c9140c17b49339052611">current_value_</a>, <a class="code" href="classimpala_1_1BitUtil.html#a372c4cce3b2fd79c710ec36d01afda07">BitUtil::Ceil</a>(<a class="code" href="classimpala_1_1RleEncoder.html#a6a4315a9e5bba6b9487d85611795015f">bit_width_</a>, 8));</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160; DCHECK(result);</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a> = 0;</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a> = 0;</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a8e3187630cead6a3f66fdb1913fa3c79">CheckBufferFull</a>();</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160;}</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160;</div>
<div class="line"><a name="l00340"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a968549e6e82ae6b8487213d0c965dfee"> 340</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1RleEncoder.html#a968549e6e82ae6b8487213d0c965dfee">RleEncoder::FlushBufferedValues</a>(<span class="keywordtype">bool</span> done) {</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a> &gt;= 8) {</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160; <span class="comment">// Clear the buffered values. They are part of the repeated run now and we</span></div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160; <span class="comment">// don&#39;t want to flush them out as literals.</span></div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a> = 0;</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> != 0) {</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>&#160; <span class="comment">// There was a current literal run. All the values in it have been flushed</span></div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160; <span class="comment">// but we still need to update the indicator byte.</span></div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>&#160; DCHECK_EQ(<a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> % 8, 0);</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160; DCHECK_EQ(<a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a>, 8);</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#ac7226051efa7c3459c93eb7a91b3ef86">FlushLiteralRun</a>(<span class="keyword">true</span>);</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160; }</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160; DCHECK_EQ(<a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a>, 0);</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160; <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160; }</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160;</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> += <a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a>;</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160; DCHECK_EQ(<a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> % 8, 0);</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>&#160; <span class="keywordtype">int</span> num_groups = <a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> / 8;</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>&#160; <span class="keywordflow">if</span> (num_groups + 1 &gt;= (1 &lt;&lt; 6)) {</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>&#160; <span class="comment">// We need to start a new literal run because the indicator byte we&#39;ve reserved</span></div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>&#160; <span class="comment">// cannot store more values.</span></div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>&#160; DCHECK(<a class="code" href="classimpala_1_1RleEncoder.html#a139ef636b4f3d53b3d7b85f61cc55a7c">literal_indicator_byte_</a> != NULL);</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#ac7226051efa7c3459c93eb7a91b3ef86">FlushLiteralRun</a>(<span class="keyword">true</span>);</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#ac7226051efa7c3459c93eb7a91b3ef86">FlushLiteralRun</a>(done);</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160; }</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a> = 0;</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>&#160;}</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160;</div>
<div class="line"><a name="l00370"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a42de9e2eaadc17ccc243ca2bb4be4859"> 370</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1RleEncoder.html#a42de9e2eaadc17ccc243ca2bb4be4859">RleEncoder::Flush</a>() {</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> &gt; 0 || <a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a> &gt; 0 || <a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a> &gt; 0) {</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160; <span class="keywordtype">bool</span> all_repeat = <a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> == 0 &amp;&amp;</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160; (<a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a> == <a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a> || <a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a> == 0);</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160; <span class="comment">// There is something pending, figure out if it&#39;s a repeated or literal run</span></div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a> &gt; 0 &amp;&amp; all_repeat) {</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#acd7257d9930bb73cbbaac0398a32b7e3">FlushRepeatedRun</a>();</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>&#160; DCHECK_EQ(<a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> % 8, 0);</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>&#160; <span class="comment">// Buffer the last group of literals to 8 by padding with 0s.</span></div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>&#160; <span class="keywordflow">for</span> (; <a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a> != 0 &amp;&amp; <a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a> &lt; 8;</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160; ++<a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a>) {</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#abe013073ded278d0fa5117b1e2813caf">buffered_values_</a>[<a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a>] = 0;</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>&#160; }</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> += <a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a>;</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#ac7226051efa7c3459c93eb7a91b3ef86">FlushLiteralRun</a>(<span class="keyword">true</span>);</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a> = 0;</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>&#160; }</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>&#160; }</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">bit_writer_</a>.<a class="code" href="classimpala_1_1BitWriter.html#ad13d095b59cc0a7a3653c01dbb2640b6">Flush</a>();</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>&#160; DCHECK_EQ(<a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a>, 0);</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>&#160; DCHECK_EQ(<a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a>, 0);</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>&#160; DCHECK_EQ(<a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a>, 0);</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>&#160;</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">bit_writer_</a>.<a class="code" href="classimpala_1_1BitWriter.html#a556a5c41e337ace2f621f84d6b86e285">bytes_written</a>();</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>&#160;}</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>&#160;</div>
<div class="line"><a name="l00397"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#a8e3187630cead6a3f66fdb1913fa3c79"> 397</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1RleEncoder.html#a8e3187630cead6a3f66fdb1913fa3c79">RleEncoder::CheckBufferFull</a>() {</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>&#160; <span class="keywordtype">int</span> bytes_written = <a class="code" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">bit_writer_</a>.<a class="code" href="classimpala_1_1BitWriter.html#a556a5c41e337ace2f621f84d6b86e285">bytes_written</a>();</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>&#160; <span class="keywordflow">if</span> (bytes_written + <a class="code" href="classimpala_1_1RleEncoder.html#a3ea4c2080b477c0116f934a652556c70">max_run_byte_size_</a> &gt; <a class="code" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">bit_writer_</a>.<a class="code" href="classimpala_1_1BitWriter.html#af9bb67d6d32c22bb27d6c13229d7442c">buffer_len</a>()) {</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a66545ef6a3d5bd006c310cf9ce2ec25a">buffer_full_</a> = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>&#160; }</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>&#160;}</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>&#160;</div>
<div class="line"><a name="l00404"></a><span class="lineno"><a class="line" href="classimpala_1_1RleEncoder.html#ab57915a7b0ca64ee1e640f66fc92afc3"> 404</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1RleEncoder.html#ab57915a7b0ca64ee1e640f66fc92afc3">RleEncoder::Clear</a>() {</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a66545ef6a3d5bd006c310cf9ce2ec25a">buffer_full_</a> = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#adf81da88d825c9140c17b49339052611">current_value_</a> = 0;</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">repeat_count_</a> = 0;</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">num_buffered_values_</a> = 0;</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">literal_count_</a> = 0;</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a139ef636b4f3d53b3d7b85f61cc55a7c">literal_indicator_byte_</a> = NULL;</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">bit_writer_</a>.<a class="code" href="classimpala_1_1BitWriter.html#a0138cd016024f173e1236e0c1b02f98c">Clear</a>();</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>&#160;}</div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>&#160;</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>&#160;}</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="ttc" id="classimpala_1_1RleDecoder_html_aff32874eedf659c90c13e7b92ce4e9a2"><div class="ttname"><a href="classimpala_1_1RleDecoder.html#aff32874eedf659c90c13e7b92ce4e9a2">impala::RleDecoder::bit_width_</a></div><div class="ttdeci">int bit_width_</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00099">rle-encoding.h:99</a></div></div>
<div class="ttc" id="classimpala_1_1BitReader_html_a868c7d0fb2b466b6bc6ed357e4137635"><div class="ttname"><a href="classimpala_1_1BitReader.html#a868c7d0fb2b466b6bc6ed357e4137635">impala::BitReader::GetAligned</a></div><div class="ttdeci">bool GetAligned(int num_bytes, T *v)</div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8inline_8h_source.html#l00115">bit-stream-utils.inline.h:115</a></div></div>
<div class="ttc" id="classimpala_1_1BitWriter_html_ae21363cc6a60255901c4fbfe12401a97"><div class="ttname"><a href="classimpala_1_1BitWriter.html#ae21363cc6a60255901c4fbfe12401a97">impala::BitWriter::PutValue</a></div><div class="ttdeci">bool PutValue(uint64_t v, int num_bits)</div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8inline_8h_source.html#l00023">bit-stream-utils.inline.h:23</a></div></div>
<div class="ttc" id="classimpala_1_1RleDecoder_html_a6bb0768fa4fd51118d536f6a44fcdc91"><div class="ttname"><a href="classimpala_1_1RleDecoder.html#a6bb0768fa4fd51118d536f6a44fcdc91">impala::RleDecoder::RleDecoder</a></div><div class="ttdeci">RleDecoder()</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00091">rle-encoding.h:91</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html"><div class="ttname"><a href="classimpala_1_1RleEncoder.html">impala::RleEncoder</a></div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00111">rle-encoding.h:111</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a94817935d768d6f94d4b06e68902c128"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a94817935d768d6f94d4b06e68902c128">impala::RleEncoder::num_buffered_values_</a></div><div class="ttdeci">int num_buffered_values_</div><div class="ttdoc">Number of values in buffered_values_. </div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00208">rle-encoding.h:208</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_aa2edeb56adf31302aac09c5a761d8a72"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#aa2edeb56adf31302aac09c5a761d8a72">impala::RleEncoder::MAX_VALUES_PER_LITERAL_RUN</a></div><div class="ttdeci">static const int MAX_VALUES_PER_LITERAL_RUN</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00188">rle-encoding.h:188</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a8e3187630cead6a3f66fdb1913fa3c79"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a8e3187630cead6a3f66fdb1913fa3c79">impala::RleEncoder::CheckBufferFull</a></div><div class="ttdeci">void CheckBufferFull()</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00397">rle-encoding.h:397</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a494a21aaea3ffe03b22e628052c82586"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a494a21aaea3ffe03b22e628052c82586">impala::RleEncoder::bit_writer_</a></div><div class="ttdeci">BitWriter bit_writer_</div><div class="ttdoc">Underlying buffer. </div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00194">rle-encoding.h:194</a></div></div>
<div class="ttc" id="classimpala_1_1RleDecoder_html_a0f8f070a454a0fcd3f1139c31f247c63"><div class="ttname"><a href="classimpala_1_1RleDecoder.html#a0f8f070a454a0fcd3f1139c31f247c63">impala::RleDecoder::bit_reader_</a></div><div class="ttdeci">BitReader bit_reader_</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00098">rle-encoding.h:98</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a4ef584a4a9b5fd6be2019bef3bca6aa8"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a4ef584a4a9b5fd6be2019bef3bca6aa8">impala::RleEncoder::literal_count_</a></div><div class="ttdeci">int literal_count_</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00220">rle-encoding.h:220</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a6a4315a9e5bba6b9487d85611795015f"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a6a4315a9e5bba6b9487d85611795015f">impala::RleEncoder::bit_width_</a></div><div class="ttdeci">const int bit_width_</div><div class="ttdoc">Number of bits needed to encode the value. </div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00191">rle-encoding.h:191</a></div></div>
<div class="ttc" id="classimpala_1_1BitWriter_html_a556a5c41e337ace2f621f84d6b86e285"><div class="ttname"><a href="classimpala_1_1BitWriter.html#a556a5c41e337ace2f621f84d6b86e285">impala::BitWriter::bytes_written</a></div><div class="ttdeci">int bytes_written() const </div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8h_source.html#l00048">bit-stream-utils.h:48</a></div></div>
<div class="ttc" id="classimpala_1_1BitWriter_html_af0b648c79e0484b4559b445eee296a32"><div class="ttname"><a href="classimpala_1_1BitWriter.html#af0b648c79e0484b4559b445eee296a32">impala::BitWriter::buffer</a></div><div class="ttdeci">uint8_t * buffer() const </div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8h_source.html#l00049">bit-stream-utils.h:49</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a69a504bd942d4e3489258fa9dc6f969a"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a69a504bd942d4e3489258fa9dc6f969a">impala::RleEncoder::buffer</a></div><div class="ttdeci">uint8_t * buffer()</div><div class="ttdoc">Returns pointer to underlying buffer. </div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00161">rle-encoding.h:161</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_ae8d541a9367301cbaa9c0ef1faa70856"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#ae8d541a9367301cbaa9c0ef1faa70856">impala::RleEncoder::RleEncoder</a></div><div class="ttdeci">RleEncoder(uint8_t *buffer, int buffer_len, int bit_width)</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00119">rle-encoding.h:119</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a968549e6e82ae6b8487213d0c965dfee"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a968549e6e82ae6b8487213d0c965dfee">impala::RleEncoder::FlushBufferedValues</a></div><div class="ttdeci">void FlushBufferedValues(bool done)</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00340">rle-encoding.h:340</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_ac7226051efa7c3459c93eb7a91b3ef86"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#ac7226051efa7c3459c93eb7a91b3ef86">impala::RleEncoder::FlushLiteralRun</a></div><div class="ttdeci">void FlushLiteralRun(bool update_indicator_byte)</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00295">rle-encoding.h:295</a></div></div>
<div class="ttc" id="classimpala_1_1RleDecoder_html_a2d95e59b922993f708207d386298040c"><div class="ttname"><a href="classimpala_1_1RleDecoder.html#a2d95e59b922993f708207d386298040c">impala::RleDecoder::repeat_count_</a></div><div class="ttdeci">uint32_t repeat_count_</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00101">rle-encoding.h:101</a></div></div>
<div class="ttc" id="classimpala_1_1BitWriter_html_ac2497dce674f6dfdc6b29049ccfb2d43"><div class="ttname"><a href="classimpala_1_1BitWriter.html#ac2497dce674f6dfdc6b29049ccfb2d43">impala::BitWriter::GetNextBytePtr</a></div><div class="ttdeci">uint8_t * GetNextBytePtr(int num_bytes=1)</div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8inline_8h_source.html#l00057">bit-stream-utils.inline.h:57</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a2631cd230fe06f7c78b8b84f3465ba25"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a2631cd230fe06f7c78b8b84f3465ba25">impala::RleEncoder::repeat_count_</a></div><div class="ttdeci">int repeat_count_</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00215">rle-encoding.h:215</a></div></div>
<div class="ttc" id="bit-util_8h_html"><div class="ttname"><a href="bit-util_8h.html">bit-util.h</a></div></div>
<div class="ttc" id="classimpala_1_1BitWriter_html_a9306b1719419818d0b97201bb01795f4"><div class="ttname"><a href="classimpala_1_1BitWriter.html#a9306b1719419818d0b97201bb01795f4">impala::BitWriter::PutAligned</a></div><div class="ttdeci">bool PutAligned(T v, int num_bytes)</div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8inline_8h_source.html#l00067">bit-stream-utils.inline.h:67</a></div></div>
<div class="ttc" id="classuint64__t_html"><div class="ttname"><a href="classuint64__t.html">uint64_t</a></div></div>
<div class="ttc" id="classimpala_1_1BitReader_html_a9b43f9b49478ce5b78adea9e651ba170"><div class="ttname"><a href="classimpala_1_1BitReader.html#a9b43f9b49478ce5b78adea9e651ba170">impala::BitReader::GetVlqInt</a></div><div class="ttdeci">bool GetVlqInt(int32_t *v)</div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8inline_8h_source.html#l00136">bit-stream-utils.inline.h:136</a></div></div>
<div class="ttc" id="classimpala_1_1BitWriter_html_ad13d095b59cc0a7a3653c01dbb2640b6"><div class="ttname"><a href="classimpala_1_1BitWriter.html#ad13d095b59cc0a7a3653c01dbb2640b6">impala::BitWriter::Flush</a></div><div class="ttdeci">void Flush(bool align=false)</div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8inline_8h_source.html#l00045">bit-stream-utils.inline.h:45</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a25b97dd185bb0e633e24a32aec7d5b16"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a25b97dd185bb0e633e24a32aec7d5b16">impala::RleEncoder::len</a></div><div class="ttdeci">int32_t len()</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00162">rle-encoding.h:162</a></div></div>
<div class="ttc" id="classimpala_1_1BitUtil_html_a372c4cce3b2fd79c710ec36d01afda07"><div class="ttname"><a href="classimpala_1_1BitUtil.html#a372c4cce3b2fd79c710ec36d01afda07">impala::BitUtil::Ceil</a></div><div class="ttdeci">static int Ceil(int value, int divisor)</div><div class="ttdoc">Returns the ceil of value/divisor. </div><div class="ttdef"><b>Definition:</b> <a href="bit-util_8h_source.html#l00032">bit-util.h:32</a></div></div>
<div class="ttc" id="classimpala_1_1BitWriter_html_a002cb318632b647a3ff75ebfb224e3e2"><div class="ttname"><a href="classimpala_1_1BitWriter.html#a002cb318632b647a3ff75ebfb224e3e2">impala::BitWriter::PutVlqInt</a></div><div class="ttdeci">bool PutVlqInt(int32_t v)</div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8inline_8h_source.html#l00074">bit-stream-utils.inline.h:74</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a3ea4c2080b477c0116f934a652556c70"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a3ea4c2080b477c0116f934a652556c70">impala::RleEncoder::max_run_byte_size_</a></div><div class="ttdeci">int max_run_byte_size_</div><div class="ttdoc">The maximum byte size a single run can take. </div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00200">rle-encoding.h:200</a></div></div>
<div class="ttc" id="bit-stream-utils_8inline_8h_html"><div class="ttname"><a href="bit-stream-utils_8inline_8h.html">bit-stream-utils.inline.h</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a66545ef6a3d5bd006c310cf9ce2ec25a"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a66545ef6a3d5bd006c310cf9ce2ec25a">impala::RleEncoder::buffer_full_</a></div><div class="ttdeci">bool buffer_full_</div><div class="ttdoc">If true, the buffer is full and subsequent Put()&#39;s will fail. </div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00197">rle-encoding.h:197</a></div></div>
<div class="ttc" id="classimpala_1_1RleDecoder_html_af82d1ca8d5496040b4428377b4bc7155"><div class="ttname"><a href="classimpala_1_1RleDecoder.html#af82d1ca8d5496040b4428377b4bc7155">impala::RleDecoder::current_value_</a></div><div class="ttdeci">uint64_t current_value_</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00100">rle-encoding.h:100</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a526b08c19c9e81ce69b4e3fa355e568f"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a526b08c19c9e81ce69b4e3fa355e568f">impala::RleEncoder::MinBufferSize</a></div><div class="ttdeci">static int MinBufferSize(int bit_width)</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00132">rle-encoding.h:132</a></div></div>
<div class="ttc" id="compiler-util_8h_html"><div class="ttname"><a href="compiler-util_8h.html">compiler-util.h</a></div></div>
<div class="ttc" id="classimpala_1_1RleDecoder_html_adde04341cd1436e2144761539befeb84"><div class="ttname"><a href="classimpala_1_1RleDecoder.html#adde04341cd1436e2144761539befeb84">impala::RleDecoder::RleDecoder</a></div><div class="ttdeci">RleDecoder(uint8_t *buffer, int buffer_len, int bit_width)</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00081">rle-encoding.h:81</a></div></div>
<div class="ttc" id="classimpala_1_1BitWriter_html_af9bb67d6d32c22bb27d6c13229d7442c"><div class="ttname"><a href="classimpala_1_1BitWriter.html#af9bb67d6d32c22bb27d6c13229d7442c">impala::BitWriter::buffer_len</a></div><div class="ttdeci">int buffer_len() const </div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8h_source.html#l00050">bit-stream-utils.h:50</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_adf81da88d825c9140c17b49339052611"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#adf81da88d825c9140c17b49339052611">impala::RleEncoder::current_value_</a></div><div class="ttdeci">int64_t current_value_</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00214">rle-encoding.h:214</a></div></div>
<div class="ttc" id="compiler-util_8h_html_a9acc330d508b9a3b775cfdf7ce405e7d"><div class="ttname"><a href="compiler-util_8h.html#a9acc330d508b9a3b775cfdf7ce405e7d">UNLIKELY</a></div><div class="ttdeci">#define UNLIKELY(expr)</div><div class="ttdef"><b>Definition:</b> <a href="compiler-util_8h_source.html#l00033">compiler-util.h:33</a></div></div>
<div class="ttc" id="classimpala_1_1BitReader_html"><div class="ttname"><a href="classimpala_1_1BitReader.html">impala::BitReader</a></div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8h_source.html#l00092">bit-stream-utils.h:92</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a8040c037f3b5abbe1a014c5bf2119dc1"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a8040c037f3b5abbe1a014c5bf2119dc1">impala::RleEncoder::Put</a></div><div class="ttdeci">bool Put(uint64_t value)</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00264">rle-encoding.h:264</a></div></div>
<div class="ttc" id="classimpala_1_1BitWriter_html"><div class="ttname"><a href="classimpala_1_1BitWriter.html">impala::BitWriter</a></div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8h_source.html#l00030">bit-stream-utils.h:30</a></div></div>
<div class="ttc" id="compiler-util_8h_html_a262afcfe437f4addb13fb1b47a6a7086"><div class="ttname"><a href="compiler-util_8h.html#a262afcfe437f4addb13fb1b47a6a7086">LIKELY</a></div><div class="ttdeci">#define LIKELY(expr)</div><div class="ttdef"><b>Definition:</b> <a href="compiler-util_8h_source.html#l00032">compiler-util.h:32</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a42de9e2eaadc17ccc243ca2bb4be4859"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a42de9e2eaadc17ccc243ca2bb4be4859">impala::RleEncoder::Flush</a></div><div class="ttdeci">int Flush()</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00370">rle-encoding.h:370</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_acd7257d9930bb73cbbaac0398a32b7e3"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#acd7257d9930bb73cbbaac0398a32b7e3">impala::RleEncoder::FlushRepeatedRun</a></div><div class="ttdeci">void FlushRepeatedRun()</div><div class="ttdoc">Flushes a repeated run to the underlying buffer. </div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00325">rle-encoding.h:325</a></div></div>
<div class="ttc" id="classimpala_1_1RleDecoder_html_a249483a95b175ad3ec2fd21cbdd384f5"><div class="ttname"><a href="classimpala_1_1RleDecoder.html#a249483a95b175ad3ec2fd21cbdd384f5">impala::RleDecoder::Get</a></div><div class="ttdeci">bool Get(T *val)</div><div class="ttdoc">Gets the next value. Returns false if there are no more. </div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00229">rle-encoding.h:229</a></div></div>
<div class="ttc" id="classimpala_1_1RleDecoder_html_a877169623a30f30f50e1e5322a8a435a"><div class="ttname"><a href="classimpala_1_1RleDecoder.html#a877169623a30f30f50e1e5322a8a435a">impala::RleDecoder::literal_count_</a></div><div class="ttdeci">uint32_t literal_count_</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00102">rle-encoding.h:102</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_ada8347d90efafb040133874037f3af87"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#ada8347d90efafb040133874037f3af87">impala::RleEncoder::MaxBufferSize</a></div><div class="ttdeci">static int MaxBufferSize(int bit_width, int num_values)</div><div class="ttdoc">Returns the maximum byte size it could take to encode &#39;num_values&#39;. </div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00142">rle-encoding.h:142</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_ab57915a7b0ca64ee1e640f66fc92afc3"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#ab57915a7b0ca64ee1e640f66fc92afc3">impala::RleEncoder::Clear</a></div><div class="ttdeci">void Clear()</div><div class="ttdoc">Resets all the state in the encoder. </div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00404">rle-encoding.h:404</a></div></div>
<div class="ttc" id="classimpala_1_1BitReader_html_a82d53654593c787d056b6186f50a941b"><div class="ttname"><a href="classimpala_1_1BitReader.html#a82d53654593c787d056b6186f50a941b">impala::BitReader::MAX_VLQ_BYTE_LEN</a></div><div class="ttdeci">static const int MAX_VLQ_BYTE_LEN</div><div class="ttdoc">Maximum byte length of a vlq encoded int. </div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8h_source.html#l00127">bit-stream-utils.h:127</a></div></div>
<div class="ttc" id="classimpala_1_1BitWriter_html_a0138cd016024f173e1236e0c1b02f98c"><div class="ttname"><a href="classimpala_1_1BitWriter.html#a0138cd016024f173e1236e0c1b02f98c">impala::BitWriter::Clear</a></div><div class="ttdeci">void Clear()</div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8h_source.html#l00040">bit-stream-utils.h:40</a></div></div>
<div class="ttc" id="classimpala_1_1RleDecoder_html"><div class="ttname"><a href="classimpala_1_1RleDecoder.html">impala::RleDecoder</a></div><div class="ttdoc">Decoder class for RLE encoded data. </div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00077">rle-encoding.h:77</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_a139ef636b4f3d53b3d7b85f61cc55a7c"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#a139ef636b4f3d53b3d7b85f61cc55a7c">impala::RleEncoder::literal_indicator_byte_</a></div><div class="ttdeci">uint8_t * literal_indicator_byte_</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00225">rle-encoding.h:225</a></div></div>
<div class="ttc" id="classimpala_1_1BitReader_html_a6fb11125149229ec58ec2340d7d457c8"><div class="ttname"><a href="classimpala_1_1BitReader.html#a6fb11125149229ec58ec2340d7d457c8">impala::BitReader::GetValue</a></div><div class="ttdeci">bool GetValue(int num_bits, T *v)</div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8inline_8h_source.html#l00085">bit-stream-utils.inline.h:85</a></div></div>
<div class="ttc" id="classimpala_1_1RleEncoder_html_abe013073ded278d0fa5117b1e2813caf"><div class="ttname"><a href="classimpala_1_1RleEncoder.html#abe013073ded278d0fa5117b1e2813caf">impala::RleEncoder::buffered_values_</a></div><div class="ttdeci">int64_t buffered_values_[8]</div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00205">rle-encoding.h:205</a></div></div>
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