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| <div class="title">base-sequence-scanner.h</div> </div> |
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| <div class="contents"> |
| <a href="base-sequence-scanner_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">// Copyright 2012 Cloudera Inc.</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <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> <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> <span class="comment">//</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <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> <span class="comment">//</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <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> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <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> <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> <span class="comment">// limitations under the License.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#ifndef IMPALA_EXEC_BASE_SEQUENCE_SCANNER_H</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor"></span><span class="preprocessor">#define IMPALA_EXEC_BASE_SEQUENCE_SCANNER_H</span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <vector></span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <memory></span></div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <stdint.h></span></div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "<a class="code" href="hdfs-scanner_8h.html">exec/hdfs-scanner.h</a>"</span></div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">namespace </span>impala {</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">struct </span>HdfsFileDesc;</div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">class </span>ScannerContext;</div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div> |
| <div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="classimpala_1_1BaseSequenceScanner.html"> 35</a></span> <span class="keyword">class </span><a class="code" href="classimpala_1_1BaseSequenceScanner.html">BaseSequenceScanner</a> : <span class="keyword">public</span> <a class="code" href="classimpala_1_1HdfsScanner.html">HdfsScanner</a> {</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">public</span>:</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">static</span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a6b84385660f88ed592fd61ac62c15793">IssueInitialRanges</a>(<a class="code" href="classimpala_1_1HdfsScanNode.html">HdfsScanNode</a>* scan_node,</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">const</span> std::vector<HdfsFileDesc*>& files);</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keyword">virtual</span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#acc3c090b8b5e1c282c828be221697d5b">Prepare</a>(<a class="code" href="classimpala_1_1ScannerContext.html">ScannerContext</a>* context);</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a1a37621b600b55d162832e8744fc6a17">Close</a>();</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">virtual</span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#acc59a2d650453eb5c12670519342c846">ProcessSplit</a>();</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">virtual</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#aae0d5cf9f400c07db437b4fa94b6be8a">~BaseSequenceScanner</a>();</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">protected</span>:</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="classimpala_1_1BaseSequenceScanner.html#a5814338e23714b1d66022f75bbb48c5b"> 49</a></span>  <span class="keyword">const</span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a5814338e23714b1d66022f75bbb48c5b">SYNC_HASH_SIZE</a> = 16;</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div> |
| <div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html"> 53</a></span>  <span class="keyword">struct </span><a class="code" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html">FileHeader</a> {</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#adfe16f3cdff7c0f609fd04da8e86a406"> 54</a></span>  <span class="keyword">virtual</span> <a class="code" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#adfe16f3cdff7c0f609fd04da8e86a406">~FileHeader</a>() {}</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div> |
| <div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#ab57f8bf94e3f23b8e9ed076b786d7a23"> 57</a></span>  uint8_t <a class="code" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#ab57f8bf94e3f23b8e9ed076b786d7a23">sync</a>[<a class="code" href="classimpala_1_1BaseSequenceScanner.html#a5814338e23714b1d66022f75bbb48c5b">SYNC_HASH_SIZE</a>];</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div> |
| <div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#a17899a9d57bf0246139d62029d40a7a3"> 60</a></span>  <span class="keywordtype">bool</span> <a class="code" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#a17899a9d57bf0246139d62029d40a7a3">is_compressed</a>;</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div> |
| <div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#abc53f9d2e221152f0cbab170c709eddb"> 63</a></span>  std::string <a class="code" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#abc53f9d2e221152f0cbab170c709eddb">codec</a>;</div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div> |
| <div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#a394cc7bb9ae9309bce7f4d9167b083fc"> 66</a></span>  THdfsCompression::type <a class="code" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#a394cc7bb9ae9309bce7f4d9167b083fc">compression_type</a>;</div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div> |
| <div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#a87d5f2145212f3a762255c4713357965"> 70</a></span>  int64_t <a class="code" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#a87d5f2145212f3a762255c4713357965">header_size</a>;</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  };</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">virtual</span> <a class="code" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html">FileHeader</a>* <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a519c086c9914fa0c9e2a2f608814a46b">AllocateFileHeader</a>() = 0;</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keyword">virtual</span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#af924a2719c3aedb31c17bd3f0bd80af3">ReadFileHeader</a>() = 0;</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">virtual</span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a7fb6c7a9e0bdf14e594d412f7e1bc600">ProcessRange</a>() = 0;</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">virtual</span> THdfsFileFormat::type <a class="code" href="classimpala_1_1BaseSequenceScanner.html#aa3ac35eed32d440edbd401600d9ee0c4">file_format</a>() <span class="keyword">const</span> = 0;</div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a240e63ad0129c83cb784f96031ad9f6d">BaseSequenceScanner</a>(<a class="code" href="classimpala_1_1HdfsScanNode.html">HdfsScanNode</a>*, <a class="code" href="classimpala_1_1RuntimeState.html">RuntimeState</a>*);</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a38bb92ef6416325aefafbcaed8f5010c">ReadSync</a>();</div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#ac583e95bbd1397d0ecbe526e7a35a445">SkipToSync</a>(<span class="keyword">const</span> uint8_t* sync, <span class="keywordtype">int</span> sync_size);</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div> |
| <div class="line"><a name="l00117"></a><span class="lineno"><a class="line" href="classimpala_1_1BaseSequenceScanner.html#a18b91ec35300d95c96b3203034a7c3f0"> 117</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a18b91ec35300d95c96b3203034a7c3f0">finished</a>() { <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#aa3430957bf7a888fddda01ac950ea46b">finished_</a>; }</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div> |
| <div class="line"><a name="l00121"></a><span class="lineno"><a class="line" href="classimpala_1_1BaseSequenceScanner.html#ac62358e62350918ee1a0c429cd74fd5c"> 121</a></span>  <span class="keyword">const</span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#ac62358e62350918ee1a0c429cd74fd5c">HEADER_SIZE</a>;</div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div> |
| <div class="line"><a name="l00124"></a><span class="lineno"><a class="line" href="classimpala_1_1BaseSequenceScanner.html#ae3d4eec40706fa6d653246a19d17e006"> 124</a></span>  <span class="keyword">const</span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#ae3d4eec40706fa6d653246a19d17e006">SYNC_MARKER</a>;</div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div> |
| <div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="classimpala_1_1BaseSequenceScanner.html#ac7f1cf14b61ed091ee80c4f2dbadba4c"> 127</a></span>  <a class="code" href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html">FileHeader</a>* <a class="code" href="classimpala_1_1BaseSequenceScanner.html#ac7f1cf14b61ed091ee80c4f2dbadba4c">header_</a>;</div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div> |
| <div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="classimpala_1_1BaseSequenceScanner.html#a0184e49248bc243ed45c77b8fb7aeac4"> 130</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a0184e49248bc243ed45c77b8fb7aeac4">only_parsing_header_</a>;</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keyword">private</span>:</div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">//</span></div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment"></span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00146"></a><span class="lineno"><a class="line" href="classimpala_1_1BaseSequenceScanner.html#aa3430957bf7a888fddda01ac950ea46b"> 146</a></span> <span class="comment"></span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#aa3430957bf7a888fddda01ac950ea46b">finished_</a>;</div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div> |
| <div class="line"><a name="l00150"></a><span class="lineno"><a class="line" href="classimpala_1_1BaseSequenceScanner.html#a5c06eddcf4b24c054328e7eeb28c5f1b"> 150</a></span>  int64_t <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a5c06eddcf4b24c054328e7eeb28c5f1b">block_start_</a>;</div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div> |
| <div class="line"><a name="l00154"></a><span class="lineno"><a class="line" href="classimpala_1_1BaseSequenceScanner.html#a4e114262860e1f844d498c802336973c"> 154</a></span>  <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a4e114262860e1f844d498c802336973c">total_block_size_</a>;</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div> |
| <div class="line"><a name="l00157"></a><span class="lineno"><a class="line" href="classimpala_1_1BaseSequenceScanner.html#a5be274fb82550166b716199805307992"> 157</a></span>  <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a5be274fb82550166b716199805307992">num_syncs_</a>;</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a9586fc33865674ed488abbbd0d7e2003">ReadPastSize</a>(int64_t file_offset);</div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a92d958bf8e7eaee48dad0398def2589d">FindSyncBlock</a>(<span class="keyword">const</span> uint8_t* buffer, <span class="keywordtype">int</span> buffer_len, <span class="keyword">const</span> uint8_t* sync,</div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordtype">int</span> sync_len);</div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1BaseSequenceScanner.html#adff67c7bd7dd6522b6db5682deefcdfe">CloseFileRanges</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* file);</div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div> |
| <div class="line"><a name="l00174"></a><span class="lineno"><a class="line" href="classimpala_1_1BaseSequenceScanner.html#a393b2ff9306ac4becc7ae3838099a4c7"> 174</a></span>  <a class="code" href="classimpala_1_1RuntimeProfile_1_1Counter.html">RuntimeProfile::Counter</a>* <a class="code" href="classimpala_1_1BaseSequenceScanner.html#a393b2ff9306ac4becc7ae3838099a4c7">bytes_skipped_counter_</a>;</div> |
| <div class="line"><a name="l00175"></a><span class="lineno"> 175</span> };</div> |
| <div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </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="l00179"></a><span class="lineno"> 179</span> <span class="preprocessor">#endif</span></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a6b84385660f88ed592fd61ac62c15793"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a6b84385660f88ed592fd61ac62c15793">impala::BaseSequenceScanner::IssueInitialRanges</a></div><div class="ttdeci">static Status IssueInitialRanges(HdfsScanNode *scan_node, const std::vector< HdfsFileDesc * > &files)</div><div class="ttdoc">Issue the initial ranges for all sequence container files. </div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8cc_source.html#l00040">base-sequence-scanner.cc:40</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a0184e49248bc243ed45c77b8fb7aeac4"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a0184e49248bc243ed45c77b8fb7aeac4">impala::BaseSequenceScanner::only_parsing_header_</a></div><div class="ttdeci">bool only_parsing_header_</div><div class="ttdoc">If true, this scanner object is only for processing the header. </div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00130">base-sequence-scanner.h:130</a></div></div> |
| <div class="ttc" id="hdfs-scanner_8h_html"><div class="ttname"><a href="hdfs-scanner_8h.html">hdfs-scanner.h</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_ac7f1cf14b61ed091ee80c4f2dbadba4c"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#ac7f1cf14b61ed091ee80c4f2dbadba4c">impala::BaseSequenceScanner::header_</a></div><div class="ttdeci">FileHeader * header_</div><div class="ttdoc">File header for this scan range. This is not owned by the parent scan node. </div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00127">base-sequence-scanner.h:127</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a5814338e23714b1d66022f75bbb48c5b"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a5814338e23714b1d66022f75bbb48c5b">impala::BaseSequenceScanner::SYNC_HASH_SIZE</a></div><div class="ttdeci">static const int SYNC_HASH_SIZE</div><div class="ttdoc">Size of the sync hash field. </div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00049">base-sequence-scanner.h:49</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a7fb6c7a9e0bdf14e594d412f7e1bc600"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a7fb6c7a9e0bdf14e594d412f7e1bc600">impala::BaseSequenceScanner::ProcessRange</a></div><div class="ttdeci">virtual Status ProcessRange()=0</div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_ac583e95bbd1397d0ecbe526e7a35a445"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#ac583e95bbd1397d0ecbe526e7a35a445">impala::BaseSequenceScanner::SkipToSync</a></div><div class="ttdeci">Status SkipToSync(const uint8_t *sync, int sync_size)</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8cc_source.html#l00212">base-sequence-scanner.cc:212</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a5c06eddcf4b24c054328e7eeb28c5f1b"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a5c06eddcf4b24c054328e7eeb28c5f1b">impala::BaseSequenceScanner::block_start_</a></div><div class="ttdeci">int64_t block_start_</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00150">base-sequence-scanner.h:150</a></div></div> |
| <div class="ttc" id="structimpala_1_1BaseSequenceScanner_1_1FileHeader_html_a87d5f2145212f3a762255c4713357965"><div class="ttname"><a href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#a87d5f2145212f3a762255c4713357965">impala::BaseSequenceScanner::FileHeader::header_size</a></div><div class="ttdeci">int64_t header_size</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00070">base-sequence-scanner.h:70</a></div></div> |
| <div class="ttc" id="structimpala_1_1BaseSequenceScanner_1_1FileHeader_html_adfe16f3cdff7c0f609fd04da8e86a406"><div class="ttname"><a href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#adfe16f3cdff7c0f609fd04da8e86a406">impala::BaseSequenceScanner::FileHeader::~FileHeader</a></div><div class="ttdeci">virtual ~FileHeader()</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00054">base-sequence-scanner.h:54</a></div></div> |
| <div class="ttc" id="classimpala_1_1ScannerContext_html"><div class="ttname"><a href="classimpala_1_1ScannerContext.html">impala::ScannerContext</a></div><div class="ttdef"><b>Definition:</b> <a href="scanner-context_8h_source.html#l00055">scanner-context.h:55</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_acc3c090b8b5e1c282c828be221697d5b"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#acc3c090b8b5e1c282c828be221697d5b">impala::BaseSequenceScanner::Prepare</a></div><div class="ttdeci">virtual Status Prepare(ScannerContext *context)</div><div class="ttdoc">One-time initialisation of state that is constant across scan ranges. </div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8cc_source.html#l00074">base-sequence-scanner.cc:74</a></div></div> |
| <div class="ttc" id="structimpala_1_1BaseSequenceScanner_1_1FileHeader_html_a394cc7bb9ae9309bce7f4d9167b083fc"><div class="ttname"><a href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#a394cc7bb9ae9309bce7f4d9167b083fc">impala::BaseSequenceScanner::FileHeader::compression_type</a></div><div class="ttdeci">THdfsCompression::type compression_type</div><div class="ttdoc">Enum for compression type. </div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00066">base-sequence-scanner.h:66</a></div></div> |
| <div class="ttc" id="classimpala_1_1RuntimeProfile_1_1Counter_html"><div class="ttname"><a href="classimpala_1_1RuntimeProfile_1_1Counter.html">impala::RuntimeProfile::Counter</a></div><div class="ttdef"><b>Definition:</b> <a href="runtime-profile_8h_source.html#l00085">runtime-profile.h:85</a></div></div> |
| <div class="ttc" id="classimpala_1_1Status_html"><div class="ttname"><a href="classimpala_1_1Status.html">impala::Status</a></div><div class="ttdef"><b>Definition:</b> <a href="status_8h_source.html#l00081">status.h:81</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_af924a2719c3aedb31c17bd3f0bd80af3"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#af924a2719c3aedb31c17bd3f0bd80af3">impala::BaseSequenceScanner::ReadFileHeader</a></div><div class="ttdeci">virtual Status ReadFileHeader()=0</div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_acc59a2d650453eb5c12670519342c846"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#acc59a2d650453eb5c12670519342c846">impala::BaseSequenceScanner::ProcessSplit</a></div><div class="ttdeci">virtual Status ProcessSplit()</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8cc_source.html#l00100">base-sequence-scanner.cc:100</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a38bb92ef6416325aefafbcaed8f5010c"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a38bb92ef6416325aefafbcaed8f5010c">impala::BaseSequenceScanner::ReadSync</a></div><div class="ttdeci">Status ReadSync()</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8cc_source.html#l00170">base-sequence-scanner.cc:170</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a9586fc33865674ed488abbbd0d7e2003"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a9586fc33865674ed488abbbd0d7e2003">impala::BaseSequenceScanner::ReadPastSize</a></div><div class="ttdeci">int ReadPastSize(int64_t file_offset)</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8cc_source.html#l00284">base-sequence-scanner.cc:284</a></div></div> |
| <div class="ttc" id="classimpala_1_1RuntimeState_html"><div class="ttname"><a href="classimpala_1_1RuntimeState.html">impala::RuntimeState</a></div><div class="ttdef"><b>Definition:</b> <a href="runtime-state_8h_source.html#l00069">runtime-state.h:69</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a5be274fb82550166b716199805307992"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a5be274fb82550166b716199805307992">impala::BaseSequenceScanner::num_syncs_</a></div><div class="ttdeci">int num_syncs_</div><div class="ttdoc">The number of syncs seen by this scanner so far. </div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00157">base-sequence-scanner.h:157</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_aae0d5cf9f400c07db437b4fa94b6be8a"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#aae0d5cf9f400c07db437b4fa94b6be8a">impala::BaseSequenceScanner::~BaseSequenceScanner</a></div><div class="ttdeci">virtual ~BaseSequenceScanner()</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8cc_source.html#l00071">base-sequence-scanner.cc:71</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a393b2ff9306ac4becc7ae3838099a4c7"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a393b2ff9306ac4becc7ae3838099a4c7">impala::BaseSequenceScanner::bytes_skipped_counter_</a></div><div class="ttdeci">RuntimeProfile::Counter * bytes_skipped_counter_</div><div class="ttdoc">Number of bytes skipped when advancing to next sync on error. </div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00174">base-sequence-scanner.h:174</a></div></div> |
| <div class="ttc" id="classimpala_1_1HdfsScanNode_html"><div class="ttname"><a href="classimpala_1_1HdfsScanNode.html">impala::HdfsScanNode</a></div><div class="ttdef"><b>Definition:</b> <a href="hdfs-scan-node_8h_source.html#l00104">hdfs-scan-node.h:104</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a1a37621b600b55d162832e8744fc6a17"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a1a37621b600b55d162832e8744fc6a17">impala::BaseSequenceScanner::Close</a></div><div class="ttdeci">virtual void Close()</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8cc_source.html#l00082">base-sequence-scanner.cc:82</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_ae3d4eec40706fa6d653246a19d17e006"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#ae3d4eec40706fa6d653246a19d17e006">impala::BaseSequenceScanner::SYNC_MARKER</a></div><div class="ttdeci">static const int SYNC_MARKER</div><div class="ttdoc">Sync indicator. </div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00124">base-sequence-scanner.h:124</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_aa3ac35eed32d440edbd401600d9ee0c4"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#aa3ac35eed32d440edbd401600d9ee0c4">impala::BaseSequenceScanner::file_format</a></div><div class="ttdeci">virtual THdfsFileFormat::type file_format() const =0</div><div class="ttdoc">Returns type of scanner: e.g. rcfile, seqfile. </div></div> |
| <div class="ttc" id="structimpala_1_1BaseSequenceScanner_1_1FileHeader_html"><div class="ttname"><a href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html">impala::BaseSequenceScanner::FileHeader</a></div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00053">base-sequence-scanner.h:53</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a18b91ec35300d95c96b3203034a7c3f0"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a18b91ec35300d95c96b3203034a7c3f0">impala::BaseSequenceScanner::finished</a></div><div class="ttdeci">bool finished()</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00117">base-sequence-scanner.h:117</a></div></div> |
| <div class="ttc" id="structimpala_1_1BaseSequenceScanner_1_1FileHeader_html_ab57f8bf94e3f23b8e9ed076b786d7a23"><div class="ttname"><a href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#ab57f8bf94e3f23b8e9ed076b786d7a23">impala::BaseSequenceScanner::FileHeader::sync</a></div><div class="ttdeci">uint8_t sync[SYNC_HASH_SIZE]</div><div class="ttdoc">The sync hash for this file. </div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00057">base-sequence-scanner.h:57</a></div></div> |
| <div class="ttc" id="classimpala_1_1HdfsScanner_html"><div class="ttname"><a href="classimpala_1_1HdfsScanner.html">impala::HdfsScanner</a></div><div class="ttdef"><b>Definition:</b> <a href="hdfs-scanner_8h_source.html#l00091">hdfs-scanner.h:91</a></div></div> |
| <div class="ttc" id="structimpala_1_1BaseSequenceScanner_1_1FileHeader_html_abc53f9d2e221152f0cbab170c709eddb"><div class="ttname"><a href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#abc53f9d2e221152f0cbab170c709eddb">impala::BaseSequenceScanner::FileHeader::codec</a></div><div class="ttdeci">std::string codec</div><div class="ttdoc">Codec name if it is compressed. </div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00063">base-sequence-scanner.h:63</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a92d958bf8e7eaee48dad0398def2589d"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a92d958bf8e7eaee48dad0398def2589d">impala::BaseSequenceScanner::FindSyncBlock</a></div><div class="ttdeci">int FindSyncBlock(const uint8_t *buffer, int buffer_len, const uint8_t *sync, int sync_len)</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8cc_source.html#l00194">base-sequence-scanner.cc:194</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a4e114262860e1f844d498c802336973c"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a4e114262860e1f844d498c802336973c">impala::BaseSequenceScanner::total_block_size_</a></div><div class="ttdeci">int total_block_size_</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00154">base-sequence-scanner.h:154</a></div></div> |
| <div class="ttc" id="structimpala_1_1BaseSequenceScanner_1_1FileHeader_html_a17899a9d57bf0246139d62029d40a7a3"><div class="ttname"><a href="structimpala_1_1BaseSequenceScanner_1_1FileHeader.html#a17899a9d57bf0246139d62029d40a7a3">impala::BaseSequenceScanner::FileHeader::is_compressed</a></div><div class="ttdeci">bool is_compressed</div><div class="ttdoc">true if the file is compressed </div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00060">base-sequence-scanner.h:60</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html">impala::BaseSequenceScanner</a></div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00035">base-sequence-scanner.h:35</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_ac62358e62350918ee1a0c429cd74fd5c"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#ac62358e62350918ee1a0c429cd74fd5c">impala::BaseSequenceScanner::HEADER_SIZE</a></div><div class="ttdeci">static const int HEADER_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00121">base-sequence-scanner.h:121</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_aa3430957bf7a888fddda01ac950ea46b"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#aa3430957bf7a888fddda01ac950ea46b">impala::BaseSequenceScanner::finished_</a></div><div class="ttdeci">bool finished_</div><div class="ttdoc">finished_ is set by ReadSync() and SkipToSync(). </div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8h_source.html#l00146">base-sequence-scanner.h:146</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_adff67c7bd7dd6522b6db5682deefcdfe"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#adff67c7bd7dd6522b6db5682deefcdfe">impala::BaseSequenceScanner::CloseFileRanges</a></div><div class="ttdeci">void CloseFileRanges(const char *file)</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8cc_source.html#l00274">base-sequence-scanner.cc:274</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a240e63ad0129c83cb784f96031ad9f6d"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a240e63ad0129c83cb784f96031ad9f6d">impala::BaseSequenceScanner::BaseSequenceScanner</a></div><div class="ttdeci">BaseSequenceScanner(HdfsScanNode *, RuntimeState *)</div><div class="ttdef"><b>Definition:</b> <a href="base-sequence-scanner_8cc_source.html#l00063">base-sequence-scanner.cc:63</a></div></div> |
| <div class="ttc" id="classimpala_1_1BaseSequenceScanner_html_a519c086c9914fa0c9e2a2f608814a46b"><div class="ttname"><a href="classimpala_1_1BaseSequenceScanner.html#a519c086c9914fa0c9e2a2f608814a46b">impala::BaseSequenceScanner::AllocateFileHeader</a></div><div class="ttdeci">virtual FileHeader * AllocateFileHeader()=0</div></div> |
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