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| <li class="navelem"><a class="el" href="dir_0449671fe79755ed26e25ef166543162.html">req</a></li><li class="navelem"><a class="el" href="dir_33f2f37c686242631bbdb651f95cf35d.html">include</a></li> </ul> |
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| <div class="headertitle"><div class="title">req_compactor.hpp</div></div> |
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| <div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div> |
| <div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div> |
| <div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div> |
| <div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * distributed with this work for additional information</span></div> |
| <div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div> |
| <div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div> |
| <div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * "License"); you may not use this file except in compliance</span></div> |
| <div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * with the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div> |
| <div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * software distributed under the License is distributed on an</span></div> |
| <div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div> |
| <div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> * KIND, either express or implied. See the License for the</span></div> |
| <div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * specific language governing permissions and limitations</span></div> |
| <div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> * under the License.</span></div> |
| <div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> */</span></div> |
| <div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div> |
| <div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#ifndef REQ_COMPACTOR_HPP_</span></div> |
| <div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#define REQ_COMPACTOR_HPP_</span></div> |
| <div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div> |
| <div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include <memory></span></div> |
| <div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div> |
| <div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacedatasketches.html">datasketches</a> {</div> |
| <div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div> |
| <div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="keyword">template</span><</div> |
| <div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="keyword">typename</span> T,</div> |
| <div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword">typename</span> Comparator,</div> |
| <div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="keyword">typename</span> Allocator</div> |
| <div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span>></div> |
| <div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="keyword">class </span>req_compactor {</div> |
| <div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="keyword">public</span>:</div> |
| <div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> req_compactor(<span class="keywordtype">bool</span> hra, uint8_t lg_weight, uint32_t section_size, <span class="keyword">const</span> Comparator& comparator,</div> |
| <div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">const</span> Allocator& allocator, <span class="keywordtype">bool</span> sorted = <span class="keyword">true</span>);</div> |
| <div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> ~req_compactor();</div> |
| <div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> req_compactor(<span class="keyword">const</span> req_compactor& other);</div> |
| <div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> req_compactor(req_compactor&& other) <span class="keyword">noexcept</span>;</div> |
| <div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> req_compactor& operator=(<span class="keyword">const</span> req_compactor& other);</div> |
| <div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> req_compactor& operator=(req_compactor&& other);</div> |
| <div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> </div> |
| <div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">template</span><<span class="keyword">typename</span> TT, <span class="keyword">typename</span> CC, <span class="keyword">typename</span> AA></div> |
| <div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> req_compactor(<span class="keyword">const</span> req_compactor<TT, CC, AA>& other, <span class="keyword">const</span> Comparator& comparator, <span class="keyword">const</span> Allocator& allocator);</div> |
| <div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> </div> |
| <div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keywordtype">bool</span> is_sorted() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> uint32_t get_num_items() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> uint32_t get_nom_capacity() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> uint8_t get_lg_weight() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">const</span> T* begin() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">const</span> T* end() <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> T* begin();</div> |
| <div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> T* end();</div> |
| <div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> </div> |
| <div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> uint64_t compute_weight(<span class="keyword">const</span> T& item, <span class="keywordtype">bool</span> inclusive) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div> |
| <div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">template</span><<span class="keyword">typename</span> FwdT></div> |
| <div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordtype">void</span> append(FwdT&& item);</div> |
| <div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div> |
| <div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keyword">template</span><<span class="keyword">typename</span> FwdC></div> |
| <div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordtype">void</span> merge(FwdC&& other);</div> |
| <div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> </div> |
| <div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keywordtype">void</span> sort();</div> |
| <div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> </div> |
| <div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> std::pair<uint32_t, uint32_t> compact(req_compactor& next);</div> |
| <div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div> |
| <div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> template<typename S, typename TT = T, typename std::enable_if<std::is_arithmetic<TT>::value, <span class="keywordtype">int</span>>::type = 0></div> |
| <div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordtype">size_t</span> get_serialized_size_bytes(<span class="keyword">const</span> S& serde) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> </div> |
| <div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> template<typename S, typename TT = T, typename std::enable_if<!std::is_arithmetic<TT>::value, <span class="keywordtype">int</span>>::type = 0></div> |
| <div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keywordtype">size_t</span> get_serialized_size_bytes(<span class="keyword">const</span> S& serde) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> </div> |
| <div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="keyword">template</span><<span class="keyword">typename</span> S></div> |
| <div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keywordtype">void</span> serialize(std::ostream& os, <span class="keyword">const</span> S& serde) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> </div> |
| <div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="keyword">template</span><<span class="keyword">typename</span> S></div> |
| <div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keywordtype">size_t</span> serialize(<span class="keywordtype">void</span>* dst, <span class="keywordtype">size_t</span> capacity, <span class="keyword">const</span> S& serde) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> </div> |
| <div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keyword">template</span><<span class="keyword">typename</span> S></div> |
| <div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keyword">static</span> req_compactor deserialize(std::istream& is, <span class="keyword">const</span> S& serde, <span class="keyword">const</span> Comparator& comparator,</div> |
| <div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keyword">const</span> Allocator& allocator, <span class="keywordtype">bool</span> sorted, <span class="keywordtype">bool</span> hra);</div> |
| <div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> </div> |
| <div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keyword">template</span><<span class="keyword">typename</span> S></div> |
| <div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="keyword">static</span> std::pair<req_compactor, size_t> deserialize(<span class="keyword">const</span> <span class="keywordtype">void</span>* bytes, <span class="keywordtype">size_t</span> size, <span class="keyword">const</span> S& serde,</div> |
| <div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keyword">const</span> Comparator& comparator, <span class="keyword">const</span> Allocator& allocator, <span class="keywordtype">bool</span> sorted, <span class="keywordtype">bool</span> hra);</div> |
| <div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> </div> |
| <div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keyword">template</span><<span class="keyword">typename</span> S></div> |
| <div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keyword">static</span> req_compactor deserialize(std::istream& is, <span class="keyword">const</span> S& serde, <span class="keyword">const</span> Comparator& comparator,</div> |
| <div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keyword">const</span> Allocator& allocator, <span class="keywordtype">bool</span> sorted, uint16_t k, uint8_t num_items, <span class="keywordtype">bool</span> hra);</div> |
| <div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> </div> |
| <div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="keyword">template</span><<span class="keyword">typename</span> S></div> |
| <div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">static</span> std::pair<req_compactor, size_t> deserialize(<span class="keyword">const</span> <span class="keywordtype">void</span>* bytes, <span class="keywordtype">size_t</span> size, <span class="keyword">const</span> S& serde,</div> |
| <div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">const</span> Comparator& comparator, <span class="keyword">const</span> Allocator& allocator, <span class="keywordtype">bool</span> sorted, uint16_t k, uint8_t num_items, <span class="keywordtype">bool</span> hra);</div> |
| <div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> </div> |
| <div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span><span class="keyword">private</span>:</div> |
| <div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> Comparator comparator_;</div> |
| <div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> Allocator allocator_;</div> |
| <div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> uint8_t lg_weight_;</div> |
| <div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordtype">bool</span> hra_;</div> |
| <div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="keywordtype">bool</span> coin_; <span class="comment">// random bit for compaction</span></div> |
| <div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordtype">bool</span> sorted_;</div> |
| <div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="keywordtype">float</span> section_size_raw_;</div> |
| <div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> uint32_t section_size_;</div> |
| <div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> uint8_t num_sections_;</div> |
| <div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> uint64_t state_; <span class="comment">// state of the deterministic compaction schedule</span></div> |
| <div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> uint32_t num_items_;</div> |
| <div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> uint32_t capacity_;</div> |
| <div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> T* items_;</div> |
| <div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> </div> |
| <div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keywordtype">bool</span> ensure_enough_sections();</div> |
| <div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> std::pair<uint32_t, uint32_t> compute_compaction_range(uint32_t secs_to_compact) <span class="keyword">const</span>;</div> |
| <div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <span class="keywordtype">void</span> grow(uint32_t new_capacity);</div> |
| <div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="keywordtype">void</span> ensure_space(uint32_t num);</div> |
| <div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> </div> |
| <div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keyword">static</span> uint32_t nearest_even(<span class="keywordtype">float</span> value);</div> |
| <div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> </div> |
| <div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keyword">template</span><<span class="keyword">typename</span> InIter, <span class="keyword">typename</span> OutIter></div> |
| <div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keyword">static</span> <span class="keywordtype">void</span> promote_evens_or_odds(InIter from, InIter to, <span class="keywordtype">bool</span> flag, OutIter dst);</div> |
| <div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> </div> |
| <div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="comment">// for deserialization</span></div> |
| <div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keyword">class </span>items_deleter;</div> |
| <div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> req_compactor(<span class="keywordtype">bool</span> hra, uint8_t lg_weight, <span class="keywordtype">bool</span> sorted, <span class="keywordtype">float</span> section_size_raw, uint8_t num_sections, uint64_t state,</div> |
| <div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> std::unique_ptr<T, items_deleter> items, uint32_t num_items, <span class="keyword">const</span> Comparator& comparator, <span class="keyword">const</span> Allocator& allocator);</div> |
| <div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> </div> |
| <div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keyword">template</span><<span class="keyword">typename</span> S></div> |
| <div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <span class="keyword">static</span> std::unique_ptr<T, items_deleter> deserialize_items(std::istream& is, <span class="keyword">const</span> S& serde, <span class="keyword">const</span> Allocator& allocator, uint32_t num);</div> |
| <div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> </div> |
| <div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keyword">template</span><<span class="keyword">typename</span> S></div> |
| <div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keyword">static</span> std::pair<std::unique_ptr<T, items_deleter>, <span class="keywordtype">size_t</span>> deserialize_items(<span class="keyword">const</span> <span class="keywordtype">void</span>* bytes, <span class="keywordtype">size_t</span> size, <span class="keyword">const</span> S& serde, <span class="keyword">const</span> Allocator& allocator, uint32_t num);</div> |
| <div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> </div> |
| <div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="comment">// for type converting constructor</span></div> |
| <div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keyword">template</span><<span class="keyword">typename</span> TT, <span class="keyword">typename</span> CC, <span class="keyword">typename</span> AA></div> |
| <div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keyword">friend</span> <span class="keyword">class </span>req_compactor;</div> |
| <div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span>};</div> |
| <div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> </div> |
| <div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span>} <span class="comment">/* namespace datasketches */</span></div> |
| <div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> </div> |
| <div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span><span class="preprocessor">#include "req_compactor_impl.hpp"</span></div> |
| <div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div> |
| <div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span><span class="preprocessor">#endif</span></div> |
| <div class="ttc" id="anamespacedatasketches_html"><div class="ttname"><a href="namespacedatasketches.html">datasketches</a></div><div class="ttdoc">DataSketches namespace.</div><div class="ttdef"><b>Definition</b> binomial_bounds.hpp:38</div></div> |
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