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| <li class="navelem"><a class="el" href="dir_bc45e258c7269dbde5716543a4c54103.html">hll</a></li><li class="navelem"><a class="el" href="dir_aa059cbaaa7f4410839cee554e9ff9ba.html">include</a></li> </ul> |
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| <div class="headertitle"><div class="title">CouponHashSet-internal.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 _COUPONHASHSET_INTERNAL_HPP_</span></div> |
| <div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#define _COUPONHASHSET_INTERNAL_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 "CouponHashSet.hpp"</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="preprocessor">#include <cstring></span></div> |
| <div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include <exception></span></div> |
| <div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include <stdexcept></span></div> |
| <div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> </div> |
| <div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacedatasketches.html">datasketches</a> {</div> |
| <div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div> |
| <div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="keyword">static</span> int32_t find(<span class="keyword">const</span> uint32_t* array, uint8_t lgArrInts, uint32_t coupon);</div> |
| <div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div> |
| <div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span>CouponHashSet<A>::CouponHashSet(uint8_t lgConfigK, <a class="code hl_enumeration" href="namespacedatasketches.html#a76c1ad9235877691984d49415bb263e4">target_hll_type</a> tgtHllType, <span class="keyword">const</span> A& allocator)</div> |
| <div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> : CouponList<A>(lgConfigK, tgtHllType, hll_mode::SET, allocator)</div> |
| <div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span>{</div> |
| <div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="keywordflow">if</span> (lgConfigK <= 7) {</div> |
| <div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"CouponHashSet must be initialized with lgConfigK > 7. Found: "</span></div> |
| <div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> + std::to_string(lgConfigK));</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>}</div> |
| <div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div> |
| <div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span>CouponHashSet<A>::CouponHashSet(<span class="keyword">const</span> CouponHashSet<A>& that, <span class="keyword">const</span> target_hll_type tgtHllType)</div> |
| <div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> : CouponList<A>(that, tgtHllType) {}</div> |
| <div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div> |
| <div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span>std::function<void(HllSketchImpl<A>*)> CouponHashSet<A>::get_deleter()<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keywordflow">return</span> [](HllSketchImpl<A>* ptr) {</div> |
| <div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> CouponHashSet<A>* chs = <span class="keyword">static_cast<</span>CouponHashSet<A>*<span class="keyword">></span>(ptr);</div> |
| <div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> ChsAlloc chsa(chs->getAllocator());</div> |
| <div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> chs->~CouponHashSet();</div> |
| <div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> chsa.deallocate(chs, 1);</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>}</div> |
| <div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div> |
| <div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span>CouponHashSet<A>* CouponHashSet<A>::newSet(<span class="keyword">const</span> <span class="keywordtype">void</span>* bytes, <span class="keywordtype">size_t</span> len, <span class="keyword">const</span> A& allocator) {</div> |
| <div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">if</span> (len < hll_constants::HASH_SET_INT_ARR_START) { <span class="comment">// hard-coded</span></div> |
| <div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keywordflow">throw</span> std::out_of_range(<span class="stringliteral">"Input data length insufficient to hold CouponHashSet"</span>);</div> |
| <div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> }</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> <span class="keyword">const</span> uint8_t* data = <span class="keyword">static_cast<</span><span class="keyword">const </span>uint8_t*<span class="keyword">></span>(bytes);</div> |
| <div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keywordflow">if</span> (data[hll_constants::PREAMBLE_INTS_BYTE] != hll_constants::HASH_SET_PREINTS) {</div> |
| <div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Incorrect number of preInts in input stream"</span>);</div> |
| <div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> }</div> |
| <div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordflow">if</span> (data[hll_constants::SER_VER_BYTE] != hll_constants::SER_VER) {</div> |
| <div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Wrong ser ver in input stream"</span>);</div> |
| <div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> }</div> |
| <div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordflow">if</span> (data[hll_constants::FAMILY_BYTE] != hll_constants::FAMILY_ID) {</div> |
| <div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Input stream is not an HLL sketch"</span>);</div> |
| <div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> }</div> |
| <div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div> |
| <div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keyword">const</span> hll_mode mode = HllSketchImpl<A>::extractCurMode(data[hll_constants::MODE_BYTE]);</div> |
| <div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordflow">if</span> (mode != SET) {</div> |
| <div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Calling set constructor with non-set mode data"</span>);</div> |
| <div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> }</div> |
| <div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> </div> |
| <div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="namespacedatasketches.html#a76c1ad9235877691984d49415bb263e4">target_hll_type</a> tgtHllType = HllSketchImpl<A>::extractTgtHllType(data[hll_constants::MODE_BYTE]);</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">const</span> uint8_t lgK = data[hll_constants::LG_K_BYTE];</div> |
| <div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keywordflow">if</span> (lgK <= 7) {</div> |
| <div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Attempt to deserialize invalid CouponHashSet with lgConfigK <= 7. Found: "</span></div> |
| <div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> + std::to_string(lgK));</div> |
| <div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> } </div> |
| <div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> uint8_t lgArrInts = data[hll_constants::LG_ARR_BYTE];</div> |
| <div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> compactFlag = ((data[hll_constants::FLAGS_BYTE] & hll_constants::COMPACT_FLAG_MASK) ? <span class="keyword">true</span> : false);</div> |
| <div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> </div> |
| <div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> uint32_t couponCount;</div> |
| <div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> std::memcpy(&couponCount, data + hll_constants::HASH_SET_COUNT_INT, <span class="keyword">sizeof</span>(couponCount));</div> |
| <div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keywordflow">if</span> (lgArrInts < hll_constants::LG_INIT_SET_SIZE) {</div> |
| <div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> lgArrInts = HllUtil<>::computeLgArrInts(SET, couponCount, lgK);</div> |
| <div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> }</div> |
| <div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="comment">// Don't set couponCount in sketch here;</span></div> |
| <div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="comment">// we'll set later if updatable, and increment with updates if compact</span></div> |
| <div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keyword">const</span> uint32_t couponsInArray = (compactFlag ? couponCount : (1 << lgArrInts));</div> |
| <div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> expectedLength = hll_constants::HASH_SET_INT_ARR_START + (couponsInArray * <span class="keyword">sizeof</span>(uint32_t));</div> |
| <div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keywordflow">if</span> (len < expectedLength) {</div> |
| <div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="keywordflow">throw</span> std::out_of_range(<span class="stringliteral">"Byte array too short for sketch. Expected "</span> + std::to_string(expectedLength)</div> |
| <div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> + <span class="stringliteral">", found: "</span> + std::to_string(len));</div> |
| <div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> }</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> ChsAlloc chsa(allocator);</div> |
| <div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> CouponHashSet<A>* sketch = <span class="keyword">new</span> (chsa.allocate(1)) CouponHashSet<A>(lgK, tgtHllType, allocator);</div> |
| <div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> </div> |
| <div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordflow">if</span> (compactFlag) {</div> |
| <div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keyword">const</span> uint8_t* curPos = data + hll_constants::HASH_SET_INT_ARR_START;</div> |
| <div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> uint32_t coupon;</div> |
| <div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordflow">for</span> (uint32_t i = 0; i < couponCount; ++i, curPos += <span class="keyword">sizeof</span>(coupon)) {</div> |
| <div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> std::memcpy(&coupon, curPos, <span class="keyword">sizeof</span>(coupon));</div> |
| <div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> sketch->couponUpdate(coupon);</div> |
| <div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> }</div> |
| <div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> sketch->coupons_.resize(1ULL << lgArrInts);</div> |
| <div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> sketch->couponCount_ = couponCount;</div> |
| <div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> std::memcpy(sketch->coupons_.data(),</div> |
| <div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> data + hll_constants::HASH_SET_INT_ARR_START,</div> |
| <div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> couponsInArray * <span class="keyword">sizeof</span>(uint32_t));</div> |
| <div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> }</div> |
| <div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> </div> |
| <div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="keywordflow">return</span> sketch;</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> </div> |
| <div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span>CouponHashSet<A>* CouponHashSet<A>::newSet(std::istream& is, <span class="keyword">const</span> A& allocator) {</div> |
| <div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> uint8_t listHeader[8];</div> |
| <div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> read(is, listHeader, 8 * <span class="keyword">sizeof</span>(uint8_t));</div> |
| <div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> </div> |
| <div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keywordflow">if</span> (listHeader[hll_constants::PREAMBLE_INTS_BYTE] != hll_constants::HASH_SET_PREINTS) {</div> |
| <div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Incorrect number of preInts in input stream"</span>);</div> |
| <div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> }</div> |
| <div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keywordflow">if</span> (listHeader[hll_constants::SER_VER_BYTE] != hll_constants::SER_VER) {</div> |
| <div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Wrong ser ver in input stream"</span>);</div> |
| <div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> }</div> |
| <div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordflow">if</span> (listHeader[hll_constants::FAMILY_BYTE] != hll_constants::FAMILY_ID) {</div> |
| <div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Input stream is not an HLL sketch"</span>);</div> |
| <div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> }</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> hll_mode mode = HllSketchImpl<A>::extractCurMode(listHeader[hll_constants::MODE_BYTE]);</div> |
| <div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keywordflow">if</span> (mode != SET) {</div> |
| <div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Calling set constructor with non-set mode data"</span>);</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="keyword">const</span> <a class="code hl_enumeration" href="namespacedatasketches.html#a76c1ad9235877691984d49415bb263e4">target_hll_type</a> tgtHllType = HllSketchImpl<A>::extractTgtHllType(listHeader[hll_constants::MODE_BYTE]);</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="keyword">const</span> uint8_t lgK = listHeader[hll_constants::LG_K_BYTE];</div> |
| <div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keywordflow">if</span> (lgK <= 7) {</div> |
| <div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Attempt to deserialize invalid CouponHashSet with lgConfigK <= 7. Found: "</span></div> |
| <div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> + std::to_string(lgK));</div> |
| <div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> }</div> |
| <div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> uint8_t lgArrInts = listHeader[hll_constants::LG_ARR_BYTE];</div> |
| <div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> compactFlag = ((listHeader[hll_constants::FLAGS_BYTE] & hll_constants::COMPACT_FLAG_MASK) ? <span class="keyword">true</span> : false);</div> |
| <div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> </div> |
| <div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keyword">const</span> <span class="keyword">auto</span> couponCount = read<uint32_t>(is);</div> |
| <div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordflow">if</span> (lgArrInts < hll_constants::LG_INIT_SET_SIZE) {</div> |
| <div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> lgArrInts = HllUtil<>::computeLgArrInts(SET, couponCount, lgK);</div> |
| <div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> }</div> |
| <div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> </div> |
| <div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> ChsAlloc chsa(allocator);</div> |
| <div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> CouponHashSet<A>* sketch = <span class="keyword">new</span> (chsa.allocate(1)) CouponHashSet<A>(lgK, tgtHllType, allocator);</div> |
| <div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keyword">typedef</span> std::unique_ptr<CouponHashSet<A>, std::function<void(HllSketchImpl<A>*)>> coupon_hash_set_ptr;</div> |
| <div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> coupon_hash_set_ptr ptr(sketch, sketch->get_deleter());</div> |
| <div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> </div> |
| <div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="comment">// Don't set couponCount here;</span></div> |
| <div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="comment">// we'll set later if updatable, and increment with updates if compact</span></div> |
| <div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <span class="keywordflow">if</span> (compactFlag) {</div> |
| <div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="keywordflow">for</span> (uint32_t i = 0; i < couponCount; ++i) {</div> |
| <div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keyword">const</span> <span class="keyword">auto</span> coupon = read<uint32_t>(is);</div> |
| <div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> sketch->couponUpdate(coupon);</div> |
| <div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> }</div> |
| <div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> sketch->coupons_.resize(1ULL << lgArrInts);</div> |
| <div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> sketch->couponCount_ = couponCount;</div> |
| <div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="comment">// for stream processing, read entire list so read pointer ends up set correctly</span></div> |
| <div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> read(is, sketch->coupons_.data(), sketch->coupons_.size() * <span class="keyword">sizeof</span>(uint32_t));</div> |
| <div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> } </div> |
| <div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> </div> |
| <div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <span class="keywordflow">if</span> (!is.good())</div> |
| <div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">"error reading from std::istream"</span>); </div> |
| <div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> </div> |
| <div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <span class="keywordflow">return</span> ptr.release();</div> |
| <div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span>}</div> |
| <div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> </div> |
| <div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span>CouponHashSet<A>* CouponHashSet<A>::copy()<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> ChsAlloc chsa(this->coupons_.get_allocator());</div> |
| <div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="keywordflow">return</span> <span class="keyword">new</span> (chsa.allocate(1)) CouponHashSet<A>(*<span class="keyword">this</span>);</div> |
| <div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span>}</div> |
| <div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> </div> |
| <div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span>CouponHashSet<A>* CouponHashSet<A>::copyAs(target_hll_type tgtHllType)<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> ChsAlloc chsa(this->coupons_.get_allocator());</div> |
| <div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordflow">return</span> <span class="keyword">new</span> (chsa.allocate(1)) CouponHashSet<A>(*<span class="keyword">this</span>, tgtHllType);</div> |
| <div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span>}</div> |
| <div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> </div> |
| <div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span>HllSketchImpl<A>* CouponHashSet<A>::couponUpdate(uint32_t coupon) {</div> |
| <div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <span class="keyword">const</span> uint8_t lgCouponArrInts = count_trailing_zeros_in_u32(<span class="keyword">static_cast<</span>uint32_t<span class="keyword">></span>(this->coupons_.size()));</div> |
| <div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> <span class="keyword">const</span> int32_t index = find<A>(this->coupons_.data(), lgCouponArrInts, coupon);</div> |
| <div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="keywordflow">if</span> (index >= 0) {</div> |
| <div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> <span class="keywordflow">return</span> <span class="keyword">this</span>; <span class="comment">// found duplicate, ignore</span></div> |
| <div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> }</div> |
| <div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> this->coupons_[~index] = coupon; <span class="comment">// found empty</span></div> |
| <div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> ++this->couponCount_;</div> |
| <div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="keywordflow">if</span> (checkGrowOrPromote()) {</div> |
| <div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="keywordflow">return</span> this->promoteHeapListOrSetToHll(*<span class="keyword">this</span>);</div> |
| <div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> }</div> |
| <div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <span class="keywordflow">return</span> <span class="keyword">this</span>;</div> |
| <div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span>}</div> |
| <div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> </div> |
| <div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span>uint32_t CouponHashSet<A>::getMemDataStart()<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> <span class="keywordflow">return</span> hll_constants::HASH_SET_INT_ARR_START;</div> |
| <div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span>}</div> |
| <div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> </div> |
| <div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span>uint8_t CouponHashSet<A>::getPreInts()<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <span class="keywordflow">return</span> hll_constants::HASH_SET_PREINTS;</div> |
| <div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span>}</div> |
| <div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> </div> |
| <div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span><span class="keywordtype">bool</span> CouponHashSet<A>::checkGrowOrPromote() {</div> |
| <div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="keywordflow">if</span> (<span class="keyword">static_cast<</span><span class="keywordtype">size_t</span><span class="keyword">></span>(hll_constants::RESIZE_DENOM * this->couponCount_) > (hll_constants::RESIZE_NUMER * this->coupons_.size())) {</div> |
| <div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="keyword">const</span> uint8_t lgCouponArrInts = count_trailing_zeros_in_u32(<span class="keyword">static_cast<</span>uint32_t<span class="keyword">></span>(this->coupons_.size()));</div> |
| <div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> <span class="keywordflow">if</span> (lgCouponArrInts == (this->lgConfigK_ - 3)) { <span class="comment">// at max size</span></div> |
| <div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// promote to HLL</span></div> |
| <div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> }</div> |
| <div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> growHashSet(lgCouponArrInts + 1);</div> |
| <div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> }</div> |
| <div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span>}</div> |
| <div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> </div> |
| <div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span><span class="keywordtype">void</span> CouponHashSet<A>::growHashSet(uint8_t tgtLgCoupArrSize) {</div> |
| <div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="keyword">const</span> uint32_t tgtLen = 1 << tgtLgCoupArrSize;</div> |
| <div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> vector_int coupons_new(tgtLen, 0, this->coupons_.get_allocator());</div> |
| <div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> </div> |
| <div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> <span class="keyword">const</span> uint32_t srcLen = <span class="keyword">static_cast<</span>uint32_t<span class="keyword">></span>(this->coupons_.size());</div> |
| <div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="keywordflow">for</span> (uint32_t i = 0; i < srcLen; ++i) { <span class="comment">// scan existing array for non-zero values</span></div> |
| <div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="keyword">const</span> uint32_t fetched = this->coupons_[i];</div> |
| <div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> <span class="keywordflow">if</span> (fetched != hll_constants::EMPTY) {</div> |
| <div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> <span class="keyword">const</span> int32_t idx = find<A>(coupons_new.data(), tgtLgCoupArrSize, fetched); <span class="comment">// search TGT array</span></div> |
| <div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> <span class="keywordflow">if</span> (idx < 0) { <span class="comment">// found EMPTY</span></div> |
| <div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> coupons_new[~idx] = fetched; <span class="comment">// insert</span></div> |
| <div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="keywordflow">continue</span>;</div> |
| <div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> }</div> |
| <div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">"Error: Found duplicate coupon"</span>);</div> |
| <div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> }</div> |
| <div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> }</div> |
| <div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> this->coupons_ = std::move(coupons_new);</div> |
| <div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span>}</div> |
| <div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> </div> |
| <div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span><span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span><span class="keyword">static</span> int32_t find(<span class="keyword">const</span> uint32_t* array, uint8_t lgArrInts, uint32_t coupon) {</div> |
| <div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> <span class="keyword">const</span> uint32_t arrMask = (1 << lgArrInts) - 1;</div> |
| <div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> uint32_t probe = coupon & arrMask;</div> |
| <div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> <span class="keyword">const</span> uint32_t loopIndex = probe;</div> |
| <div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <span class="keywordflow">do</span> {</div> |
| <div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <span class="keyword">const</span> uint32_t couponAtIdx = array[probe];</div> |
| <div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="keywordflow">if</span> (couponAtIdx == hll_constants::EMPTY) {</div> |
| <div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> <span class="keywordflow">return</span> ~probe; <span class="comment">//empty</span></div> |
| <div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> }</div> |
| <div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (coupon == couponAtIdx) {</div> |
| <div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> <span class="keywordflow">return</span> probe; <span class="comment">//duplicate</span></div> |
| <div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> }</div> |
| <div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <span class="keyword">const</span> uint32_t stride = ((coupon & hll_constants::KEY_MASK_26) >> lgArrInts) | 1;</div> |
| <div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> probe = (probe + stride) & arrMask;</div> |
| <div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> } <span class="keywordflow">while</span> (probe != loopIndex);</div> |
| <div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Key not found and no empty slots!"</span>);</div> |
| <div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span>}</div> |
| <div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> </div> |
| <div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span>}</div> |
| <div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> </div> |
| <div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span><span class="preprocessor">#endif </span><span class="comment">// _COUPONHASHSET_INTERNAL_HPP_</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> |
| <div class="ttc" id="anamespacedatasketches_html_a76c1ad9235877691984d49415bb263e4"><div class="ttname"><a href="namespacedatasketches.html#a76c1ad9235877691984d49415bb263e4">datasketches::target_hll_type</a></div><div class="ttdeci">target_hll_type</div><div class="ttdoc">Specifies the target type of HLL sketch to be created.</div><div class="ttdef"><b>Definition</b> hll.hpp:72</div></div> |
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