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| <div class="title">CouponHashSet-internal.hpp</div> </div> |
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| <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div> |
| <div class="line"><a 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 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 name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * distributed with this work for additional information</span></div> |
| <div class="line"><a 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 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 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 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 name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div> |
| <div class="line"><a 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 name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> *</span></div> |
| <div class="line"><a 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 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 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 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 name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * specific language governing permissions and limitations</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * under the License.</span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  </div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#ifndef _COUPONHASHSET_INTERNAL_HPP_</span></div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#define _COUPONHASHSET_INTERNAL_HPP_</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 "CouponHashSet.hpp"</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="preprocessor">#include <cstring></span></div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <exception></span></div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <stdexcept></span></div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">namespace </span><a class="code" href="namespacedatasketches.html">datasketches</a> {</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  </div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a 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 name="l00033"></a><span class="lineno"> 33</span>  </div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> CouponHashSet<A>::CouponHashSet(uint8_t lgConfigK, <a class="code" href="namespacedatasketches.html#a76c1ad9235877691984d49415bb263e4">target_hll_type</a> tgtHllType, <span class="keyword">const</span> A& allocator)</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  : CouponList<A>(lgConfigK, tgtHllType, hll_mode::SET, allocator)</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> {</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">if</span> (lgConfigK <= 7) {</div> |
| <div class="line"><a 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 name="l00040"></a><span class="lineno"> 40</span>  + std::to_string(lgConfigK));</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  }</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> }</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  </div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a 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 name="l00046"></a><span class="lineno"> 46</span>  : CouponList<A>(that, tgtHllType) {}</div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  </div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a 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 name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">return</span> [](HllSketchImpl<A>* ptr) {</div> |
| <div class="line"><a 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 name="l00052"></a><span class="lineno"> 52</span>  ChsAlloc chsa(chs->getAllocator());</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  chs->~CouponHashSet();</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  chsa.deallocate(chs, 1);</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  };</div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span> }</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  </div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a 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 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 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 name="l00062"></a><span class="lineno"> 62</span>  }</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  </div> |
| <div class="line"><a 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 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 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 name="l00067"></a><span class="lineno"> 67</span>  }</div> |
| <div class="line"><a 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 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 name="l00070"></a><span class="lineno"> 70</span>  }</div> |
| <div class="line"><a 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 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 name="l00073"></a><span class="lineno"> 73</span>  }</div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  </div> |
| <div class="line"><a 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 name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (mode != SET) {</div> |
| <div class="line"><a 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 name="l00078"></a><span class="lineno"> 78</span>  }</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">const</span> <a class="code" href="namespacedatasketches.html#a76c1ad9235877691984d49415bb263e4">target_hll_type</a> tgtHllType = HllSketchImpl<A>::extractTgtHllType(data[hll_constants::MODE_BYTE]);</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  </div> |
| <div class="line"><a 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 name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">if</span> (lgK <= 7) {</div> |
| <div class="line"><a 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 name="l00085"></a><span class="lineno"> 85</span>  + std::to_string(lgK));</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  } </div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  uint8_t lgArrInts = data[hll_constants::LG_ARR_BYTE];</div> |
| <div class="line"><a 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> : <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  </div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  uint32_t couponCount;</div> |
| <div class="line"><a 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 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 name="l00093"></a><span class="lineno"> 93</span>  lgArrInts = HllUtil<>::computeLgArrInts(SET, couponCount, lgK);</div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="comment">// Don't set couponCount in sketch here;</span></div> |
| <div class="line"><a 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 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 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 name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">if</span> (len < expectedLength) {</div> |
| <div class="line"><a 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 name="l00101"></a><span class="lineno"> 101</span>  + <span class="stringliteral">", found: "</span> + std::to_string(len));</div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  ChsAlloc chsa(allocator);</div> |
| <div class="line"><a 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 name="l00106"></a><span class="lineno"> 106</span>  </div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">if</span> (compactFlag) {</div> |
| <div class="line"><a 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 name="l00109"></a><span class="lineno"> 109</span>  uint32_t coupon;</div> |
| <div class="line"><a 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 name="l00111"></a><span class="lineno"> 111</span>  std::memcpy(&coupon, curPos, <span class="keyword">sizeof</span>(coupon));</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  sketch->couponUpdate(coupon);</div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  }</div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  sketch->coupons_.resize(1ULL << lgArrInts);</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  sketch->couponCount_ = couponCount;</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  std::memcpy(sketch->coupons_.data(),</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  data + hll_constants::HASH_SET_INT_ARR_START,</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  couponsInArray * <span class="keyword">sizeof</span>(uint32_t));</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  }</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  </div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">return</span> sketch;</div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span> }</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  </div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a 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 name="l00127"></a><span class="lineno"> 127</span>  uint8_t listHeader[8];</div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  read(is, listHeader, 8 * <span class="keyword">sizeof</span>(uint8_t));</div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  </div> |
| <div class="line"><a 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 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 name="l00132"></a><span class="lineno"> 132</span>  }</div> |
| <div class="line"><a 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 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 name="l00135"></a><span class="lineno"> 135</span>  }</div> |
| <div class="line"><a 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 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 name="l00138"></a><span class="lineno"> 138</span>  }</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  </div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  hll_mode mode = HllSketchImpl<A>::extractCurMode(listHeader[hll_constants::MODE_BYTE]);</div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">if</span> (mode != SET) {</div> |
| <div class="line"><a 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 name="l00143"></a><span class="lineno"> 143</span>  }</div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  </div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">const</span> <a class="code" href="namespacedatasketches.html#a76c1ad9235877691984d49415bb263e4">target_hll_type</a> tgtHllType = HllSketchImpl<A>::extractTgtHllType(listHeader[hll_constants::MODE_BYTE]);</div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  </div> |
| <div class="line"><a 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 name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">if</span> (lgK <= 7) {</div> |
| <div class="line"><a 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 name="l00150"></a><span class="lineno"> 150</span>  + std::to_string(lgK));</div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  }</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  uint8_t lgArrInts = listHeader[hll_constants::LG_ARR_BYTE];</div> |
| <div class="line"><a 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> : <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  </div> |
| <div class="line"><a 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 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 name="l00157"></a><span class="lineno"> 157</span>  lgArrInts = HllUtil<>::computeLgArrInts(SET, couponCount, lgK);</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  }</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  </div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  ChsAlloc chsa(allocator);</div> |
| <div class="line"><a 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 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 name="l00163"></a><span class="lineno"> 163</span>  coupon_hash_set_ptr ptr(sketch, sketch->get_deleter());</div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  </div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="comment">// Don't set couponCount here;</span></div> |
| <div class="line"><a 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 name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> (compactFlag) {</div> |
| <div class="line"><a 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 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 name="l00170"></a><span class="lineno"> 170</span>  sketch->couponUpdate(coupon);</div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  }</div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  sketch->coupons_.resize(1ULL << lgArrInts);</div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  sketch->couponCount_ = couponCount;</div> |
| <div class="line"><a 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 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 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="keywordflow">if</span> (!is.good())</div> |
| <div class="line"><a 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 name="l00181"></a><span class="lineno"> 181</span>  </div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">return</span> ptr.release();</div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span> }</div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  </div> |
| <div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a name="l00186"></a><span class="lineno"> 186</span> CouponHashSet<A>* CouponHashSet<A>::copy()<span class="keyword"> const </span>{</div> |
| <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  ChsAlloc chsa(this->coupons_.get_allocator());</div> |
| <div class="line"><a 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 name="l00189"></a><span class="lineno"> 189</span> }</div> |
| <div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  </div> |
| <div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a 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 name="l00193"></a><span class="lineno"> 193</span>  ChsAlloc chsa(this->coupons_.get_allocator());</div> |
| <div class="line"><a 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 name="l00195"></a><span class="lineno"> 195</span> }</div> |
| <div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  </div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a name="l00198"></a><span class="lineno"> 198</span> HllSketchImpl<A>* CouponHashSet<A>::couponUpdate(uint32_t coupon) {</div> |
| <div class="line"><a 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 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 name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">if</span> (index >= 0) {</div> |
| <div class="line"><a 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 name="l00203"></a><span class="lineno"> 203</span>  }</div> |
| <div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  this->coupons_[~index] = coupon; <span class="comment">// found empty</span></div> |
| <div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  ++this->couponCount_;</div> |
| <div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">if</span> (checkGrowOrPromote()) {</div> |
| <div class="line"><a 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 name="l00208"></a><span class="lineno"> 208</span>  }</div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">return</span> <span class="keyword">this</span>;</div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span> }</div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  </div> |
| <div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a name="l00213"></a><span class="lineno"> 213</span> uint32_t CouponHashSet<A>::getMemDataStart()<span class="keyword"> const </span>{</div> |
| <div class="line"><a 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 name="l00215"></a><span class="lineno"> 215</span> }</div> |
| <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  </div> |
| <div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a name="l00218"></a><span class="lineno"> 218</span> uint8_t CouponHashSet<A>::getPreInts()<span class="keyword"> const </span>{</div> |
| <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">return</span> hll_constants::HASH_SET_PREINTS;</div> |
| <div class="line"><a name="l00220"></a><span class="lineno"> 220</span> }</div> |
| <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  </div> |
| <div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="keywordtype">bool</span> CouponHashSet<A>::checkGrowOrPromote() {</div> |
| <div class="line"><a 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 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 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 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 name="l00228"></a><span class="lineno"> 228</span>  }</div> |
| <div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  growHashSet(lgCouponArrInts + 1);</div> |
| <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  }</div> |
| <div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00232"></a><span class="lineno"> 232</span> }</div> |
| <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  </div> |
| <div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="keywordtype">void</span> CouponHashSet<A>::growHashSet(uint8_t tgtLgCoupArrSize) {</div> |
| <div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keyword">const</span> uint32_t tgtLen = 1 << tgtLgCoupArrSize;</div> |
| <div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  vector_int coupons_new(tgtLen, 0, this->coupons_.get_allocator());</div> |
| <div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  </div> |
| <div class="line"><a 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 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 name="l00241"></a><span class="lineno"> 241</span>  <span class="keyword">const</span> uint32_t fetched = this->coupons_[i];</div> |
| <div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">if</span> (fetched != hll_constants::EMPTY) {</div> |
| <div class="line"><a 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 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 name="l00245"></a><span class="lineno"> 245</span>  coupons_new[~idx] = fetched; <span class="comment">// insert</span></div> |
| <div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">continue</span>;</div> |
| <div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  }</div> |
| <div class="line"><a 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 name="l00249"></a><span class="lineno"> 249</span>  }</div> |
| <div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  }</div> |
| <div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  this->coupons_ = std::move(coupons_new);</div> |
| <div class="line"><a name="l00252"></a><span class="lineno"> 252</span> }</div> |
| <div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  </div> |
| <div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="keyword">template</span><<span class="keyword">typename</span> A></div> |
| <div class="line"><a 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 name="l00256"></a><span class="lineno"> 256</span>  <span class="keyword">const</span> uint32_t arrMask = (1 << lgArrInts) - 1;</div> |
| <div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  uint32_t probe = coupon & arrMask;</div> |
| <div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keyword">const</span> uint32_t loopIndex = probe;</div> |
| <div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">do</span> {</div> |
| <div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keyword">const</span> uint32_t couponAtIdx = array[probe];</div> |
| <div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">if</span> (couponAtIdx == hll_constants::EMPTY) {</div> |
| <div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">return</span> ~probe; <span class="comment">//empty</span></div> |
| <div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  }</div> |
| <div class="line"><a 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 name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordflow">return</span> probe; <span class="comment">//duplicate</span></div> |
| <div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  }</div> |
| <div class="line"><a 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 name="l00268"></a><span class="lineno"> 268</span>  probe = (probe + stride) & arrMask;</div> |
| <div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  } <span class="keywordflow">while</span> (probe != loopIndex);</div> |
| <div class="line"><a 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 name="l00271"></a><span class="lineno"> 271</span> }</div> |
| <div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  </div> |
| <div class="line"><a name="l00273"></a><span class="lineno"> 273</span> }</div> |
| <div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  </div> |
| <div class="line"><a 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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