http://git-wip-us.apache.org/repos/asf/arrow-site/blob/8673db8b/docs/cpp/rle-encoding_8h_source.html ---------------------------------------------------------------------- diff --git a/docs/cpp/rle-encoding_8h_source.html b/docs/cpp/rle-encoding_8h_source.html index bd1b22e..67d0af9 100644 --- a/docs/cpp/rle-encoding_8h_source.html +++ b/docs/cpp/rle-encoding_8h_source.html @@ -5,7 +5,7 @@ <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.13"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> -<title>Apache Arrow (C++): /home/wesm/code/arrow/cpp/src/arrow/util/rle-encoding.h Source File</title> +<title>Apache Arrow (C++): /apache-arrow/arrow/cpp/src/arrow/util/rle-encoding.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> @@ -67,7 +67,7 @@ $(function() { <div class="title">rle-encoding.h</div> </div> </div><!--header--> <div class="contents"> -<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> <span class="comment">// Licensed to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// or more contributor license agreements. See the NOTICE file</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// distributed with this work for additional information</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// regarding copyright ownership. The ASF licenses this file</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// "License"); you may not use this file except in compliance</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// with 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,</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// software distribu ted under the License is distributed on an</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// KIND, either express or implied. See the License for the</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// specific language governing permissions and limitations</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// under the License.</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> <span class="comment">// Imported from Apache Impala (incubating) on 2016-01-29 and modified for use</span></div><div clas s="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// in parquet-cpp, Arrow</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#ifndef ARROW_UTIL_RLE_ENCODING_H</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#define ARROW_UTIL_RLE_ENCODING_H</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <math.h></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <algorithm></span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00 027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="bit-stream-utils_8h.html">arrow/util/bit-stream-utils.h</a>"</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "<a class="code" href="bit-util_8h.html">arrow/util/bit-util.h</a>"</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "<a class="code" href="macros_8h.html">arrow/util/macros.h</a>"</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">namespace </span><a class="code" href="namespacearrow.html">arrow</a> {</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00049"></a><span class="lineno "> 49</span> <span class="comment">//</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"></span><span class="comment">//</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"></span><span class="comment">//</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"></span><span class="comment">//</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"></span><span class="comment">//</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"></span><span class="comment">//</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_decoder.html"> 84</a></span>  ;<span class="keyword">class </span><a class="code" href="classarrow_1_1_rle_decoder.html">RleDecoder</a> {</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_decoder.html#ade5f27ef8425169de8bf02f058ca70ad"> 88</a></span>  <a class="code" href="classarrow_1_1_rle_decoder.html#ade5f27ef8425169de8bf02f058ca70ad">RleDecoder</a>(<span class="keyword">const</span> uint8_t* buffer, <span class="keywordtype">int</span> buffer_len, <span class="keywordtype">int</span> bit_width)</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  : <a class="code" href="classarrow_1_1_rle_decoder.html#ae322ce67872b6927016b391b5533d438">bit_reader_</a>(buffer, buffer_len),</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="classar row_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>(bit_width),</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a088d8f1f38b46f1e8c016224041d357d">current_value_</a>(0),</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a>(0),</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a>(0) {</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <a class="code" href="logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295">DCHECK_GE</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>, 0);</div><div class="l ine"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="code" href="logging_8h.html#a4395e95bab44e222cb2e77251017a0e2">DCHECK_LE</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>, 64);</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"><a class="line" href="classarrow_1_1_rle_decoder.html#a921fa80d36d40072e6c62a96e31aeecc"> 98</a></span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a921fa80d36d40072e6c62a96e31aeecc">RleDecoder</a>() : <a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>(-1) {}</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"><a class="line " href="classarrow_1_1_rle_decoder.html#aa360b061d9e7f3bcb2186dd3ffb14099"> 100</a></span>  <span class="keywordtype">void</span> <a class="code" href="classarrow_1_1_rle_decoder.html#aa360b061d9e7f3bcb2186dd3ffb14099">Reset</a>(<span class="keyword">const</span> uint8_t* buffer, <span class="keywordtype">int</span> buffer_len, <span class="keywordtype">int</span> bit_width) {</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <a class="code" href="logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295">DCHECK_GE</a>(bit_width, 0);</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <a class="code" href="logging_8h.html#a4395e95bab44e222cb2e77251017a0e2">DCHECK_LE</a>(bit_width, 64);</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#ae322ce67872b6927016b391b5533d438">bit_reader_</a>.<a class="code" href="classarrow_1_1_bi t_reader.html#aaaefbf3fa141ce764cda52c0e1e55103">Reset</a>(buffer, buffer_len);</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a> = bit_width;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a088d8f1f38b46f1e8c016224041d357d">current_value_</a> = 0;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> = 0;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> = 0;</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  }</div><div class="line"><a n ame="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">bool</span> <a class="code" href="classarrow_1_1_rle_decoder.html#a162b61df5b8dfc2b976e164aeec6c557">Get</a>(T* val);</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordtype">int</span> <a class="code" href="classarrow_1_1_rle_decoder.html#ac5119fdc5c7575d3adb711182761d1f3">GetBatch</a>(T* values, <span class="keywordtype">int</span> batch_size);< /div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">int</span> <a class="code" href="classarrow_1_1_rle_decoder.html#a57fc03429dd19dddd43efb262dc318de">GetBatchWithDict</a>(<span class="keyword">const</span> T* <a class="code" href="namespacearrow.html#a60af355046f03b01c4fcbc6fcaed4ea1">dictionary</a>, T* values, <span class="keywordtype">int</span> batch_size);</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00124"></a><span class="lineno "> 124</span>  <span class="keywordtype">int</span> <a class="code" href="classarrow_1_1_rle_decoder.html#a40ddd386f477c6e16a0f3ef7116cb469">GetBatchWithDictSpaced</a>(<span class="keyword">const</span> T* dictionary, T* values, <span class="keywordtype">int</span> batch_size,</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordtype">int</span> null_count, <span class="keyword">const</span> uint8_t* valid_bits,</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  int64_t valid_bits_offset);</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00129"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_decoder.html#ae322ce67872b6927016b391b553 3d438"> 129</a></span>  <a class="code" href="classarrow_1_1_bit_reader.html">BitReader</a> <a class="code" href="classarrow_1_1_rle_decoder.html#ae322ce67872b6927016b391b5533d438">bit_reader_</a>;</div><div class="line"><a name="l00131"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a"> 131</a></span>  <span class="keywordtype">int</span> <a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>;</div><div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_decoder.html#a088d8f1f38b46f1e8c016224041d357d"> 132</a></span>  uint64_t <a class="code" href="classarrow_1_1_rle_decoder.html#a088d8f1f38b46f1e8c016224041d357d">current_value_</a>;</div><div class="line"><a name="l00133"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7"> 133</a></span>  uint32_t <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a>;</div><div class="line"><a name="l00134"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08"> 134</a></span>  uint32_t <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a>;</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>  <span class="keyword">private</span>:</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordtype">bool</span> NextCounts();</div><div class="line"><a name="l00141"></a><span class="lineno"> 1 41</span> };</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div><div class="line"><a name="l00149"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_encoder.html"> 149</a></span> <span class="keyword">class </span><a class="code" href="classarrow_1_1_rle_encoder.html">RleEncoder</a> {</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00157"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_encoder.html#adc0c885ceee5e917fe5a40d210ec5b03"> 157</a></span>  <a class="code" href="classarrow_1_1_rle_encoder.html#adc0c885ceee5e917fe5a40d210ec5b03">RleEncoder</a>(uint8_t* buffer, <span class="keywordtype">int</span> buffer_len, <span class="keywordtype">int</span> bit_width)</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  : <a class="code" href="classarrow_1_1_r le_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>(bit_width), bit_writer_(buffer, buffer_len) {</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <a class="code" href="logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295">DCHECK_GE</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>, 0);</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <a class="code" href="logging_8h.html#a4395e95bab44e222cb2e77251017a0e2">DCHECK_LE</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>, 64);</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  max_run_byte_size_ = MinBufferSize(bit_width);</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <a class="code" href="logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295">DCHECK_GE</a>(buffer_len , max_run_byte_size_) << <span class="stringliteral">"Input buffer not big enough."</span>;</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  Clear();</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  }</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div><div class="line"><a name="l00169"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_encoder.html#aef37304aaa5e6b58f819c74d03afedbc"> 169</a></span>  <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="classarrow_1_1_rle_encoder.html#aef37304aaa5e6b58f819c74d03afedbc">MinBufferSize</a>(<span class="keywordtype">int</span> bit_width) {</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordtype">int</span> max_literal_run_size =</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  1 + <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(BitUtil::Ceil(MAX_VALUES_PER_LITERAL_RUN * bit_width, 8));</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordtype">int</span> max_repeated_run_size =</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <a class="code" href="classarrow_1_1_bit_reader.html#aa5953074578c6d5e068574ab4ccb3e35">BitReader::MAX_VLQ_BYTE_LEN</a> + <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(BitUtil::Ceil(bit_width, 8));</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">return</span> std::max(max_literal_run_size, max_repeated_run_size);</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div><div class="line" ><a name="l00178"></a><span class="lineno"> 178</span> </div><div >class="line"><a name="l00180"></a><span class="lineno"><a class="line" >href="classarrow_1_1_rle_encoder.html#af421f0591967c246893182caf8d8db67"> >180</a></span>  <span class="keyword">static</span> <span >class="keywordtype">int</span> <a class="code" >href="classarrow_1_1_rle_encoder.html#af421f0591967c246893182caf8d8db67">MaxBufferSize</a>(<span > class="keywordtype">int</span> bit_width, <span >class="keywordtype">int</span> num_values) {</div><div class="line"><a >name="l00181"></a><span class="lineno"> 181</span>  <span >class="comment">// For a bit_width > 1, the worst case is the repetition >of "literal run of length 8</span></div><div class="line"><a >name="l00182"></a><span class="lineno"> 182</span>  <span >class="comment">// and then a repeated run of length >8".</span></div><div class="line"><a name="l00183"></a><span >class="lineno"> 183</span>  <span class="comment ">// 8 values per smallest run, 8 bits per byte</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// int bytes_per_run = BitUtil::Ceil(bit_width * 8, 8);</span></div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordtype">int</span> bytes_per_run = bit_width;</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordtype">int</span> num_runs = <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(BitUtil::Ceil(num_values, 8));</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordtype">int</span> literal_max_size = num_runs + num_runs * bytes_per_run;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div><div class="line"><a name="l00189"></a><span class="lineno"> 189</spa n>  <span class="comment">// In the very worst case scenario, the data is a concatenation of repeated</span></div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="comment">// runs of 8 values. Repeated run has a 1 byte varint followed by the</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="comment">// bit-packed repeated value</span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordtype">int</span> min_repeated_run_size = 1 + <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(BitUtil::Ceil(bit_width, 8));</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordtype">int</span> repeated_max_size =</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywo rd">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(BitUtil::Ceil(num_values, 8)) * min_repeated_run_size;</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">return</span> std::max(literal_max_size, repeated_max_size);</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  }</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordtype">bool</span> Put(uint64_t value);</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> </div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordtype">int</span> Flush();</div><div class="line"><a name="l00206"></a><span class="l ineno"> 206</span> </div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordtype">void</span> Clear();</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div><div class="line"><a name="l00211"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_encoder.html#a9ceaa6738680e32e35615a29425d1269"> 211</a></span>  uint8_t* <a class="code" href="classarrow_1_1_rle_encoder.html#a9ceaa6738680e32e35615a29425d1269">buffer</a>() { <span class="keywordflow">return</span> bit_writer_.buffer(); }</div><div class="line"><a name="l00212"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_encoder.html#a03b6b8d1147e9639f3071fa2916566e0"> 212</a></span>  int32_t <a class="code" href="classarrow_1_1_rle_encoder.html#a03b6b8d1147e9639f3071fa2916566e0">len</a>() { <span class="keywordflow">return</span> bit_writer_.bytes_written(); }</div><div class="line"><a name="l00213"></ a><span class="lineno"> 213</span> </div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordtype">void</span> FlushBufferedValues(<span class="keywordtype">bool</span> done);</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordtype">void</span> FlushLiteralRun(<span class="keywordtype">bool</span> update_indicator_byte);</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> </div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordtype">void</span> FlushRepeatedRun();</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordtype">void</span> CheckBufferFull();</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> MAX_VALUES_PER_LITERAL_RUN = (1 << 6) * 8;</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> </div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>;</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <a class="code" href="classarrow_1_1_bit_writer.html">BitWriter </a> bit_writer_;</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> </div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordtype">bool</span> buffer_full_;</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordtype">int</span> max_run_byte_size_;</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  int64_t buffered_values_[8];</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordtype">int</span> num_buffered_values_;</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span> </div><div class="line" ><a name="l00264"></a><span class="lineno"> 264</span>  uint64_t <a >class="code" >href="classarrow_1_1_rle_decoder.html#a088d8f1f38b46f1e8c016224041d357d">current_value_</a>;</div><div > class="line"><a name="l00265"></a><span class="lineno"> 265</span>  ><span class="keywordtype">int</span> <a class="code" >href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a>;</div><div > class="line"><a name="l00266"></a><span class="lineno"> >266</span> </div><div class="line"><a name="l00270"></a><span >class="lineno"> 270</span>  <span class="keywordtype">int</span> <a >class="code" >href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a>;</div><div > class="line"><a name="l00271"></a><span class="lineno"> >271</span> </div><div class="line"><a name="l00275"></a><span >class="lineno"> 275</span>  uint8_t* >literal_indicator_byte_;</div><div class="line"><a name="l00276"></a><span >class="lineno"> 2 76</span> };</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span> </div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00279"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_decoder.html#a162b61df5b8dfc2b976e164aeec6c557"> 279</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classarrow_1_1_rle_decoder.html#a162b61df5b8dfc2b976e164aeec6c557">RleDecoder::Get</a>(T* val) {</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">return</span> <a class="code" href="classarrow_1_1_rle_decoder.html#ac5119fdc5c7575d3adb711182761d1f3">GetBatch</a>(val, 1) == 1;</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> }</div><div class="line"><a name= "l00282"></a><span class="lineno"> 282</span> </div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00284"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_decoder.html#ac5119fdc5c7575d3adb711182761d1f3"> 284</a></span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classarrow_1_1_rle_decoder.html#ac5119fdc5c7575d3adb711182761d1f3">RleDecoder::GetBatch</a>(T* values, <span class="keywordtype">int</span> batch_size) {</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <a class="code" href="logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295">DCHECK_GE</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>, 0);</div><div class="line"><a name="l00286"></a><span class="lineno"> 28 6</span>  <span class="keywordtype">int</span> values_read = 0;</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> </div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keywordflow">while</span> (values_read < batch_size) {</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">if</span> (<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> > 0) {</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordtype">int</span> repeat_batch =</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  std::min(batch_size - values_read, static_cast<int>(<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a>));</div><div class="line"><a name="l00292"></a> <span class="lineno"> 292</span>  std::fill(values + values_read, values + values_read + repeat_batch,</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  static_cast<T>(<a class="code" href="classarrow_1_1_rle_decoder.html#a088d8f1f38b46f1e8c016224041d357d">current_value_</a>));</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> -= repeat_batch;</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  values_read += repeat_batch;</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> > 0) {</div><div class="line"><a name="l00297" ></a><span class="lineno"> 297</span>  <span >class="keywordtype">int</span> literal_batch =</div><div class="line"><a >name="l00298"></a><span class="lineno"> 298</span>  >std::min(batch_size - values_read, static_cast<int>(<a class="code" >href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a>));</div><div > class="line"><a name="l00299"></a><span class="lineno"> 299</span>  > <span class="keywordtype">int</span> actual_read =</div><div >class="line"><a name="l00300"></a><span class="lineno"> 300</span>  > <a class="code" >href="classarrow_1_1_rle_decoder.html#ae322ce67872b6927016b391b5533d438">bit_reader_</a>.<a > class="code" >href="classarrow_1_1_bit_reader.html#a6f023d4ce78bd6a9cbc2f372f441d964">GetBatch</a>(<a > class="code" >href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>, > values + values_read, literal_batch);</div><div class="line"><a >name="l00301"></a><span class="lineno"> 301</span>  <a class="code" href="logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(actual_read, literal_batch);</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> -= literal_batch;</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  values_read += literal_batch;</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keywordflow">if</span> (!NextCounts<T>()) <span class="keywordflow">return</span> values_read;</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  }</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  }< /div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span> </div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordflow">return</span> values_read;</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span> }</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00313"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_decoder.html#a57fc03429dd19dddd43efb262dc318de"> 313</a></span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classarrow_1_1_rle_decoder.html#a57fc03429dd19dddd43efb262dc318de">RleDecoder::GetBatchWithDict</a>(<span class="keyword">const</span> T* <a class="code" href="namesp acearrow.html#a60af355046f03b01c4fcbc6fcaed4ea1">dictionary</a>, T* values, <span class="keywordtype">int</span> batch_size) {</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <a class="code" href="logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295">DCHECK_GE</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>, 0);</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordtype">int</span> values_read = 0;</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span> </div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">while</span> (values_read < batch_size) {</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">if</span> (<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d 7">repeat_count_</a> > 0) {</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordtype">int</span> repeat_batch =</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  std::min(batch_size - values_read, static_cast<int>(<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a>));</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  std::fill(values + values_read, values + values_read + repeat_batch,</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  dictionary[<a class="code" href="classarrow_1_1_rle_decoder.html#a088d8f1f38b46f1e8c016224041d357d">current_value_</a>]);</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_ count_</a> -= repeat_batch;</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  values_read += repeat_batch;</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> > 0) {</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordtype">int</span> literal_batch =</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  std::min(batch_size - values_read, static_cast<int>(<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a>));</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span> 0; <span class="keyword">const</span> <span class="keywordtype">int</span> buffer_size = 1024;</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordtype">int</span> indices[buffer_size];</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  literal_batch = std::min(literal_batch, buffer_size);</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="keywordtype">int</span> actual_read = <a class="code" href="classarrow_1_1_rle_decoder.html#ae322ce67872b6927016b391b5533d438">bit_reader_</a>.<a class="code" href="classarrow_1_1_bit_reader.html#a6f023d4ce78bd6a9cbc2f372f441d964">GetBatch</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>, &indices[0], literal_batch);</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <a class="code" href="logging_8h. html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(actual_read, literal_batch);</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < literal_batch; ++i) {</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  values[values_read + i] = dictionary[indices[i]];</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  }</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> -= literal_batch;</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  values_read += literal_batch;</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  } <span class="keywordflow">else</span> {</div><div class="li ne"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keywordflow">if</span> (!NextCounts<T>()) <span class="keywordflow">return</span> values_read;</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  }</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  }</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span> </div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">return</span> values_read;</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> }</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span> </div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00348"></a><span class="lineno"><a class="li ne" href="classarrow_1_1_rle_decoder.html#a40ddd386f477c6e16a0f3ef7116cb469"> 348</a></span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classarrow_1_1_rle_decoder.html#a40ddd386f477c6e16a0f3ef7116cb469">RleDecoder::GetBatchWithDictSpaced</a>(<span class="keyword">const</span> T* <a class="code" href="namespacearrow.html#a60af355046f03b01c4fcbc6fcaed4ea1">dictionary</a>, T* values,</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keywordtype">int</span> batch_size, <span class="keywordtype">int</span> null_count,</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keyword">const</span> uint8_t* valid_bits,</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  int64_t valid_ bits_offset) {</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <a class="code" href="logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295">DCHECK_GE</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>, 0);</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="keywordtype">int</span> values_read = 0;</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordtype">int</span> remaining_nulls = null_count;</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <a class="code" href="bit-util_8h.html#a760bf109287895672418b5a7855d4464">INIT_BITSET</a>(valid_bits, static_cast<int>(valid_bits_offset));</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span> </div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span clas s="keywordflow">while</span> (values_read < batch_size) {</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="keywordtype">bool</span> is_valid = (bitset_valid_bits & (1 << bit_offset_valid_bits)) != 0;</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <a class="code" href="bit-util_8h.html#abd53b6fe5d0ee60b928d2813f89422cf">READ_NEXT_BITSET</a>(valid_bits);</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span> </div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">if</span> (is_valid) {</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordflow">if</span> ((<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> == 0) && (<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b 675bbc5394eb58eb33c08">literal_count_</a> == 0)) {</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keywordflow">if</span> (!NextCounts<T>()) <span class="keywordflow">return</span> values_read;</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  }</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">if</span> (<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> > 0) {</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  T value = dictionary[<a class="code" href="classarrow_1_1_rle_decoder.html#a088d8f1f38b46f1e8c016224041d357d">current_value_</a>];</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="comment">// The current index is already valid, we don't need to check that a gain</span></div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordtype">int</span> repeat_batch = 1;</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a>--;</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span> </div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keywordflow">while</span> (<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> > 0 && (values_read + repeat_batch) < batch_size) {</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keywordflow">if</span> (bitset_valid_bits & (1 << bit_offset_valid_bits)) {</div><div class="line"><a name="l00373"></a><span class="l ineno"> 373</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a>--;</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  remaining_nulls--;</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  }</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  repeat_batch++;</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span> </div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <a class="code" href="bit-util_8h.html#abd53b6fe5d0ee60b928d2813f89422cf">READ_NEXT_BITSET</a>(valid_bits);</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  }</div><div class="li ne"><a name="l00381"></a><span class="lineno"> 381</span>  std::fill(values + values_read, values + values_read + repeat_batch, value);</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  values_read += repeat_batch;</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> > 0) {</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordtype">int</span> literal_batch = std::min(batch_size - values_read - remaining_nulls,</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  static_cast<int>(<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_< /a>));</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> </div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="comment">// Decode the literals</span></div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  constexpr <span class="keywordtype">int</span> kBufferSize = 1024;</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keywordtype">int</span> indices[kBufferSize];</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  literal_batch = std::min(literal_batch, kBufferSize);</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordtype">int</span> actual_read = <a class="code" href="classarrow_1_1_rle_decoder.html#ae322ce67872b6927016b391b5533d438">bit_reader_</a>.<a class="code" href="classarrow_1_1_bit_reader.html#a6f023d4ce 78bd6a9cbc2f372f441d964">GetBatch</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>, &indices[0], literal_batch);</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <a class="code" href="logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(actual_read, literal_batch);</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span> </div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="keywordtype">int</span> skipped = 0;</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keywordtype">int</span> literals_read = 1;</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  values[values_read] = dictionary[indices[0]];</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span> </div><div class="line "><a name="l00398"></a><span class="lineno"> 398</span>  <span class="comment">// Read the first bitset to the end</span></div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keywordflow">while</span> (literals_read < literal_batch) {</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="keywordflow">if</span> (bitset_valid_bits & (1 << bit_offset_valid_bits)) {</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  values[values_read + literals_read + skipped] =</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  dictionary[indices[literals_read]];</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  literals_read++;</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  } <span class="keywo rdflow">else</span> {</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  skipped++;</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  }</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span> </div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <a class="code" href="bit-util_8h.html#abd53b6fe5d0ee60b928d2813f89422cf">READ_NEXT_BITSET</a>(valid_bits);</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  }</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> -= literal_batch;</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  values_read += literal_batch + skipped;</div><div class="line"><a name="l00412"></a><spa n class="lineno"> 412</span>  remaining_nulls -= skipped;</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  }</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  values_read++;</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  remaining_nulls--;</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  }</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  }</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span> </div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="keywordflow">return</span> values_read;</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span> }</div><div c lass="line"><a name="l00422"></a><span class="lineno"> 422</span> </div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="keywordtype">bool</span> RleDecoder::NextCounts() {</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="comment">// Read the next run's indicator int, it could be a literal or repeated run.</span></div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="comment">// The int is encoded as a vlq-encoded value.</span></div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  int32_t indicator_value = 0;</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordtype">bool</span> result = <a cla ss="code" href="classarrow_1_1_rle_decoder.html#ae322ce67872b6927016b391b5533d438">bit_reader_</a>.<a class="code" href="classarrow_1_1_bit_reader.html#a93bcd15198d511bf77a3980e4a9d343d">GetVlqInt</a>(&indicator_value);</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordflow">if</span> (!result) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span> </div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="comment">// lsb indicates if it is a literal run or repeated run</span></div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keywordtype">bool</span> is_literal = indicator_value & 1;</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keywordflow">if</span> (is_literal) {</div><div class ="line"><a name="l00434"></a><span class="lineno"> 434</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> = (indicator_value >> 1) * 8;</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> = indicator_value >> 1;</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keywordtype">bool</span> result =</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#ae322ce67872b6927016b391b5533d438">bit_reader_</a>.<a class="code" href="classarrow_1_1_bit_reader.html#ae209b69dc854275c1425d4d11abf36bd">GetAligned</ a><T>(<span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(BitUtil::Ceil(<a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>, 8)),</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  reinterpret_cast<T*>(&<a class="code" href="classarrow_1_1_rle_decoder.html#a088d8f1f38b46f1e8c016224041d357d">current_value_</a>));</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <a class="code" href="logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(result);</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  }</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00443"></a><span class="lin eno"> 443</span> }</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span> </div><div class="line"><a name="l00447"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_encoder.html#aeb6b9c2fe21841200de722e4bac3d4ed"> 447</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classarrow_1_1_rle_encoder.html#aeb6b9c2fe21841200de722e4bac3d4ed">RleEncoder::Put</a>(uint64_t value) {</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <a class="code" href="logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a> == 64 || value < (1ULL << <a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>));</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class ="keywordflow">if</span> (<a class="code" href="macros_8h.html#a6f2ee7ad52872edb915cf48e163ac99c">ARROW_PREDICT_FALSE</a>(buffer_full_)) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span> </div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="keywordflow">if</span> (<a class="code" href="macros_8h.html#a1f418a9edc46d53e62732e7ccd06f329">ARROW_PREDICT_TRUE</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#a088d8f1f38b46f1e8c016224041d357d">current_value_</a> == value)) {</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  ++<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a>;</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="keywordflow">if</span> (<a class="code" href="classarrow_1_1_rle_ decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> > 8) {</div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="comment">// This is just a continuation of the current run, no need to buffer the</span></div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="comment">// values.</span></div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="comment">// Note that this is the fast path for long repeated runs.</span></div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  }</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00460"></a> <span class="lineno"> 460</span>  <span class="keywordflow">if</span> (<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> >= 8) {</div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="comment">// We had a run that was long enough but it has ended. Flush the</span></div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="comment">// current repeated run.</span></div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <a class="code" href="logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a>, 0);</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  FlushRepeatedRun();</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</sp an>  }</div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> = 1;</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a088d8f1f38b46f1e8c016224041d357d">current_value_</a> = value;</div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  }</div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span> </div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  buffered_values_[num_buffered_values_] = value;</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="keywordflow">if</span> (++num_buffered_values_ == 8) {</div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <a class="code" href="logging_8h.ht ml#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> % 8, 0);</div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  FlushBufferedValues(<span class="keyword">false</span>);</div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  }</div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span> }</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span> </div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> RleEncoder::FlushLiteralRun(<span class="keywordtype">bool</span> update_indicator_byte) {</div><div class="lin e"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="keywordflow">if</span> (literal_indicator_byte_ == NULL) {</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="comment">// The literal indicator byte has not been reserved yet, get one now.</span></div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  literal_indicator_byte_ = bit_writer_.GetNextBytePtr();</div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <a class="code" href="logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(literal_indicator_byte_ != NULL);</div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  }</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span> </div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <span class="comment">// Write all the buffered values as bit packed l iterals</span></div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_buffered_values_; ++i) {</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  <span class="keywordtype">bool</span> success = bit_writer_.PutValue(buffered_values_[i], <a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>);</div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  <a class="code" href="logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(success) << <span class="stringliteral">"There is a bug in using CheckBufferFull()"</span>;</div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  }</div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  num_buffered_values_ = 0;</div><div class="li ne"><a name="l00491"></a><span class="lineno"> 491</span> </div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="keywordflow">if</span> (update_indicator_byte) {</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  <span class="comment">// At this point we need to write the indicator byte for the literal run.</span></div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <span class="comment">// We only reserve one byte, to allow for streaming writes of literal values.</span></div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="comment">// The logic makes sure we flush literal runs often enough to not overrun</span></div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="comment">// the 1 byte.</span></div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span> 60; <a class="code" href="logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> % 8, 0);</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keywordtype">int</span> num_groups = <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> / 8;</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  int32_t indicator_value = (num_groups << 1) | 1;</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <a class="code" href="logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(indicator_value & 0xFFFFFF00, 0);</div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  *literal_indicator_byte_ = <span class="keyword">static_cast<</span>uint8_t<span class="keyw ord">></span>(indicator_value);</div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  literal_indicator_byte_ = NULL;</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> = 0;</div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  CheckBufferFull();</div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  }</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span> }</div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span> </div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> RleEncoder::FlushRepeatedRun() {</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <a cla ss="code" href="logging_8h.html#ab4f56aa24c4c9cddc47a6abd2d747f9a">DCHECK_GT</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a>, 0);</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="keywordtype">bool</span> result = <span class="keyword">true</span>;</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="comment">// The lsb of 0 indicates this is a repeated run</span></div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  int32_t indicator_value = <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> << 1 | 0;</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  result &= bit_writer_.PutVlqInt(indicator_value);</div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  result &= bi t_writer_.PutAligned(<a class="code" href="classarrow_1_1_rle_decoder.html#a088d8f1f38b46f1e8c016224041d357d">current_value_</a>,</div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  static_cast<int>(BitUtil::Ceil(<a class="code" href="classarrow_1_1_rle_decoder.html#af5b7d1065870c531497185144788570a">bit_width_</a>, 8)));</div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  <a class="code" href="logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(result);</div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  num_buffered_values_ = 0;</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> = 0;</div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  CheckBufferFull();</div><div c lass="line"><a name="l00520"></a><span class="lineno"> 520</span> }</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span> </div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> RleEncoder::FlushBufferedValues(<span class="keywordtype">bool</span> done) {</div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="keywordflow">if</span> (<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> >= 8) {</div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="comment">// Clear the buffered values. They are part of the repeated run now and we</span></div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="comment">// don't want to flush them out as literals.</span></div><d iv class="line"><a name="l00528"></a><span class="lineno"> 528</span>  num_buffered_values_ = 0;</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="keywordflow">if</span> (<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> != 0) {</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  <span class="comment">// There was a current literal run. All the values in it have been flushed</span></div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="comment">// but we still need to update the indicator byte.</span></div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <a class="code" href="logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> % 8, 0);</div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <a class="code" href="logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a>, 8);</div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  FlushLiteralRun(<span class="keyword">true</span>);</div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  }</div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <a class="code" href="logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a>, 0);</div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00538"></a><span class="li neno"> 538</span>  }</div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span> </div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> += num_buffered_values_;</div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  <a class="code" href="logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> % 8, 0);</div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="keywordtype">int</span> num_groups = <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> / 8;</div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="keywordflow">if</span> (num_grou ps + 1 >= (1 << 6)) {</div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="comment">// We need to start a new literal run because the indicator byte we've reserved</span></div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  <span class="comment">// cannot store more values.</span></div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <a class="code" href="logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(literal_indicator_byte_ != NULL);</div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  FlushLiteralRun(<span class="keyword">true</span>);</div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  FlushLiteralRun(done);</div><div class="line"><a name="l00550"> </a><span class="lineno"> 550</span>  }</div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> = 0;</div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span> }</div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span> </div><div class="line"><a name="l00554"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_encoder.html#afa2d613daeb930316e02581751e5de08"> 554</a></span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classarrow_1_1_rle_encoder.html#afa2d613daeb930316e02581751e5de08">RleEncoder::Flush</a>() {</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="keywordflow">if</span> (<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_c ount_</a> > 0 || <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> > 0 || num_buffered_values_ > 0) {</div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="keywordtype">bool</span> all_repeat = <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> == 0 && (<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> == num_buffered_values_ ||</div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  num_buffered_values_ == 0);</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <span class="comment">// There is something pending, figure out if it's a repeated or literal run</span></div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span>&# 160; <span class="keywordflow">if</span> (<a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> > 0 && all_repeat) {</div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  FlushRepeatedRun();</div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <a class="code" href="logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> % 8, 0);</div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <span class="comment">// Buffer the last group of literals to 8 by padding with 0s.</span></div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class=" keywordflow">for</span> (; num_buffered_values_ != 0 && num_buffered_values_ < 8;</div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  ++num_buffered_values_) {</div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  buffered_values_[num_buffered_values_] = 0;</div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  }</div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> += num_buffered_values_;</div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  FlushLiteralRun(<span class="keyword">true</span>);</div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> = 0;</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  }</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  }</div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  bit_writer_.Flush();</div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  <a class="code" href="logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(num_buffered_values_, 0);</div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <a class="code" href="logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(<a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a>, 0);</div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <a class="code" href="logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(<a class="code" href="classarrow_1_1_rle_decoder.html# a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a>, 0);</div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span> </div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="keywordflow">return</span> bit_writer_.bytes_written();</div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span> }</div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span> </div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> RleEncoder::CheckBufferFull() {</div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  <span class="keywordtype">int</span> bytes_written = bit_writer_.bytes_written();</div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  <span class="keywordflow">if</span> (bytes_written + max_run_byte_size_ > bit_writer_.bu ffer_len()) {</div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  buffer_full_ = <span class="keyword">true</span>;</div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  }</div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span> }</div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span> </div><div class="line"><a name="l00588"></a><span class="lineno"><a class="line" href="classarrow_1_1_rle_encoder.html#a944b1ef4608bb5ff8e64c85c225b56fe"> 588</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classarrow_1_1_rle_encoder.html#a944b1ef4608bb5ff8e64c85c225b56fe">RleEncoder::Clear</a>() {</div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  buffer_full_ = <span class="keyword">false</span>;</div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <a c lass="code" href="classarrow_1_1_rle_decoder.html#a088d8f1f38b46f1e8c016224041d357d">current_value_</a> = 0;</div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#a3322b6e9e41a478d05c0a771142d61d7">repeat_count_</a> = 0;</div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  num_buffered_values_ = 0;</div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  <a class="code" href="classarrow_1_1_rle_decoder.html#ad86a89aeb9b675bbc5394eb58eb33c08">literal_count_</a> = 0;</div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  literal_indicator_byte_ = NULL;</div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  bit_writer_.Clear();</div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span> }</div><div class="line"><a name="l00597"></a><span class="lineno"> 597</sp an> </div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span> } <span class="comment">// namespace arrow</span></div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span> </div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span> <span class="preprocessor">#endif // ARROW_UTIL_RLE_ENCODING_H</span></div><div class="ttc" id="classarrow_1_1_rle_encoder_html_afa2d613daeb930316e02581751e5de08"><div class="ttname"><a href="classarrow_1_1_rle_encoder.html#afa2d613daeb930316e02581751e5de08">arrow::RleEncoder::Flush</a></div><div class="ttdeci">int Flush()</div><div class="ttdoc">Flushes any pending values to the underlying buffer. </div><div class="ttdef"><b>Definition:</b> rle-encoding.h:554</div></div> +<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> <span class="comment">// Licensed to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// or more contributor license agreements. See the NOTICE file</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// distributed with this work for additional information</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// regarding copyright ownership. The ASF licenses this file</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// "License"); you may not use this file except in compliance</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// with 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,</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// software distribu ted under the License is distributed on an</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// KIND, either express or implied. See the License for the</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// specific language governing permissions and limitations</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// under the License.</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> <span class="comment">// Imported from Apache Impala (incubating) on 2016-01-29 and modified for use</span></div><div clas s="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// in parquet-cpp, Arrow</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#ifndef ARROW_UTIL_RLE_ENCODING_H</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#define ARROW_UTIL_RLE_ENCODING_H</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <math.h></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <algorithm></span><
<TRUNCATED>
