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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_0103a8ad82dcc2c51f5cde661b4b5cb7.html">xrpl</a></li><li class="navelem"><a class="el" href="dir_f534ca90a4985f34ab325acfbcd39b84.html">basics</a></li> </ul>
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<div class="headertitle"><div class="title">SlabAllocator.h</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">/*</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> This file is part of rippled: https://github.com/ripple/rippled</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> Copyright 2022, Nikolaos D. Bougalis &lt;nikb@bougalis.net&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"></span> </div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> Permission to use, copy, modify, and/or distribute this software for any</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> purpose with or without fee is hereby granted, provided that the above</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> copyright notice and this permission notice appear in all copies.</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"> THE SOFTWARE IS PROVIDED &quot;AS IS&quot; AND THE AUTHOR DISCLAIMS ALL WARRANTIES</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment">*/</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 RIPPLE_BASICS_SLABALLOCATOR_H_INCLUDED</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#define RIPPLE_BASICS_SLABALLOCATOR_H_INCLUDED</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 &lt;xrpl/basics/ByteUtilities.h&gt;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include &lt;xrpl/beast/type_name.h&gt;</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include &lt;xrpl/beast/utility/instrumentation.h&gt;</span></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="preprocessor">#include &lt;boost/align.hpp&gt;</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include &lt;boost/container/static_vector.hpp&gt;</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include &lt;boost/predef.h&gt;</span></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="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/algorithm.html">algorithm</a>&gt;</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/atomic.html">atomic</a>&gt;</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/cstdint.html">cstdint</a>&gt;</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/cstring.html">cstring</a>&gt;</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/mutex.html">mutex</a>&gt;</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/vector.html">vector</a>&gt;</span></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="preprocessor">#if BOOST_OS_LINUX</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="preprocessor">#include &lt;sys/mman.h&gt;</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="preprocessor">#endif</span></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">namespace </span><a class="code hl_namespace" href="namespaceripple.html">ripple</a> {</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> &lt;<span class="keyword">typename</span> Type&gt;</div>
<div class="foldopen" id="foldopen00045" data-start="{" data-end="};">
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocator.html"> 45</a></span><span class="keyword">class </span><a class="code hl_class" href="classripple_1_1SlabAllocator.html">SlabAllocator</a></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span>{</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">static_assert</span>(</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">sizeof</span>(Type) &gt;= <span class="keyword">sizeof</span>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>*),</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="stringliteral">&quot;SlabAllocator: the requested object must be larger than a pointer.&quot;</span>);</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">static_assert</span>(<span class="keyword">alignof</span>(Type) == 8 || <span class="keyword">alignof</span>(Type) == 4);</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="foldopen" id="foldopen00054" data-start="{" data-end="};">
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html"> 54</a></span> <span class="keyword">struct </span><a class="code hl_struct" href="structripple_1_1SlabAllocator_1_1SlabBlock.html">SlabBlock</a></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="comment">// A mutex to protect the freelist for this block:</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a531411f3231aa0ae9aa735da7c739ce4"> 57</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/mutex.html">std::mutex</a> <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a531411f3231aa0ae9aa735da7c739ce4">m_</a>;</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="comment">// A linked list of appropriately sized free buffers:</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#ae86708a8fd44754f5955cae59a42d0ae"> 60</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>* <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#ae86708a8fd44754f5955cae59a42d0ae">l_</a> = <span class="keyword">nullptr</span>;</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="comment">// The next memory block</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a1c8358e65cf81019737a66dffe0887af"> 63</a></span> <a class="code hl_struct" href="structripple_1_1SlabAllocator_1_1SlabBlock.html">SlabBlock</a>* <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a1c8358e65cf81019737a66dffe0887af">next_</a>;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="comment">// The underlying memory block:</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a8db542e10fce31f924163e4cc3d04a62"> 66</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a> <span class="keyword">const</span>* <span class="keyword">const</span> <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a8db542e10fce31f924163e4cc3d04a62">p_</a> = <span class="keyword">nullptr</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="comment">// The extent of the underlying memory block:</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#aafc185f1180caa56ca93985bd66a1d24"> 69</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <span class="keyword">const</span> <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#aafc185f1180caa56ca93985bd66a1d24">size_</a>;</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="foldopen" id="foldopen00071" data-start="{" data-end="}">
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#aae3b881e26f20ed039f89906952ee9ba"> 71</a></span> <a class="code hl_function" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#aae3b881e26f20ed039f89906952ee9ba">SlabBlock</a>(</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <a class="code hl_struct" href="structripple_1_1SlabAllocator_1_1SlabBlock.html">SlabBlock</a>* next,</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>* data,</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <a class="code hl_function" href="classripple_1_1SlabAllocator.html#a6d6d7d449e67409f252d02bdf3af20fe">size</a>,</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> item)</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> : <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a1c8358e65cf81019737a66dffe0887af">next_</a>(next), <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a8db542e10fce31f924163e4cc3d04a62">p_</a>(data), <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#aafc185f1180caa56ca93985bd66a1d24">size_</a>(<a class="code hl_function" href="classripple_1_1SlabAllocator.html#a6d6d7d449e67409f252d02bdf3af20fe">size</a>)</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> {</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="comment">// We don&#39;t need to grab the mutex here, since we&#39;re the only</span></div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="comment">// ones with access at this moment.</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> </div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keywordflow">while</span> (data + item &lt;= <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a8db542e10fce31f924163e4cc3d04a62">p_</a> + <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#aafc185f1180caa56ca93985bd66a1d24">size_</a>)</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> {</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="comment">// Use memcpy to avoid unaligned UB</span></div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="comment">// (will optimize to equivalent code)</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/string/byte/memcpy.html">std::memcpy</a>(data, &amp;<a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#ae86708a8fd44754f5955cae59a42d0ae">l_</a>, <span class="keyword">sizeof</span>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>*));</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#ae86708a8fd44754f5955cae59a42d0ae">l_</a> = data;</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> data += item;</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> }</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> }</div>
</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> </div>
<div class="foldopen" id="foldopen00091" data-start="{" data-end="}">
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#adfeb156b3aabe7e20995c2ef0291829d"> 91</a></span> <a class="code hl_function" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#adfeb156b3aabe7e20995c2ef0291829d">~SlabBlock</a>()</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> {</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="comment">// Calling this destructor will release the allocated memory but</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="comment">// will not properly destroy any objects that are constructed in</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="comment">// the block itself.</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> }</div>
</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#adbdf9cfef60136abf24d8778e72487d9"> 98</a></span> <a class="code hl_function" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#adbdf9cfef60136abf24d8778e72487d9">SlabBlock</a>(<a class="code hl_struct" href="structripple_1_1SlabAllocator_1_1SlabBlock.html">SlabBlock</a> <span class="keyword">const</span>&amp; other) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <a class="code hl_struct" href="structripple_1_1SlabAllocator_1_1SlabBlock.html">SlabBlock</a>&amp;</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a41304305a62494bccb36844c088879ec"> 100</a></span> <a class="code hl_function" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a41304305a62494bccb36844c088879ec">operator=</a>(<a class="code hl_struct" href="structripple_1_1SlabAllocator_1_1SlabBlock.html">SlabBlock</a> <span class="keyword">const</span>&amp; other) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> </div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a5fdbf7befe4aef1abc3a3038f5351dca"> 102</a></span> <a class="code hl_function" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a5fdbf7befe4aef1abc3a3038f5351dca">SlabBlock</a>(<a class="code hl_struct" href="structripple_1_1SlabAllocator_1_1SlabBlock.html">SlabBlock</a>&amp;&amp; other) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <a class="code hl_struct" href="structripple_1_1SlabAllocator_1_1SlabBlock.html">SlabBlock</a>&amp;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#afc9167178ec20048b5f0d626d4face10"> 104</a></span> <a class="code hl_function" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#afc9167178ec20048b5f0d626d4face10">operator=</a>(<a class="code hl_struct" href="structripple_1_1SlabAllocator_1_1SlabBlock.html">SlabBlock</a>&amp;&amp; other) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordtype">bool</span></div>
<div class="foldopen" id="foldopen00108" data-start="{" data-end="}">
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a0857c5a2b90481de09acad1f7efedd74"> 108</a></span> <a class="code hl_function" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a0857c5a2b90481de09acad1f7efedd74">own</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a> <span class="keyword">const</span>* p) <span class="keyword">const</span> <span class="keyword">noexcept</span></div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> {</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordflow">return</span> (p &gt;= <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a8db542e10fce31f924163e4cc3d04a62">p_</a>) &amp;&amp; (p &lt; <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a8db542e10fce31f924163e4cc3d04a62">p_</a> + <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#aafc185f1180caa56ca93985bd66a1d24">size_</a>);</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> }</div>
</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>*</div>
<div class="foldopen" id="foldopen00114" data-start="{" data-end="}">
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#af4144237273edd77728808494ea467a9"> 114</a></span> <a class="code hl_function" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#af4144237273edd77728808494ea467a9">allocate</a>() noexcept</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> {</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>* ret;</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> </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> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> l(<a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a531411f3231aa0ae9aa735da7c739ce4">m_</a>);</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> ret = <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#ae86708a8fd44754f5955cae59a42d0ae">l_</a>;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordflow">if</span> (ret)</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="comment">// Use memcpy to avoid unaligned UB</span></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="comment">// (will optimize to equivalent code)</span></div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/string/byte/memcpy.html">std::memcpy</a>(&amp;<a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#ae86708a8fd44754f5955cae59a42d0ae">l_</a>, ret, <span class="keyword">sizeof</span>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>*));</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> }</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> </div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">return</span> ret;</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> }</div>
</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> </div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00144" data-start="{" data-end="}">
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"><a class="line" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a3d97e4d8de0778cd8f11a7c26c2f5301"> 144</a></span> <a class="code hl_function" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a3d97e4d8de0778cd8f11a7c26c2f5301">deallocate</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>* ptr) <span class="keyword">noexcept</span></div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> {</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <a class="code hl_function" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a0857c5a2b90481de09acad1f7efedd74">own</a>(ptr),</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="stringliteral">&quot;ripple::SlabAllocator::SlabBlock::deallocate : own input&quot;</span>);</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> </div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> l(<a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a531411f3231aa0ae9aa735da7c739ce4">m_</a>);</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> <span class="comment">// Use memcpy to avoid unaligned UB</span></div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="comment">// (will optimize to equivalent code)</span></div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/string/byte/memcpy.html">std::memcpy</a>(ptr, &amp;<a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#ae86708a8fd44754f5955cae59a42d0ae">l_</a>, <span class="keyword">sizeof</span>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>*));</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <a class="code hl_variable" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#ae86708a8fd44754f5955cae59a42d0ae">l_</a> = ptr;</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> }</div>
</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> };</div>
</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><span class="keyword">private</span>:</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="comment">// A linked list of slabs</span></div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocator.html#a706e50935a03ee1cba5aef0f292e702b"> 161</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/atomic/atomic.html">std::atomic&lt;SlabBlock*&gt;</a> <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a706e50935a03ee1cba5aef0f292e702b">slabs_</a> = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> </div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="comment">// The alignment requirements of the item we&#39;re allocating:</span></div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocator.html#a4e917232aa72be29e7341de8cd987e01"> 164</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <span class="keyword">const</span> <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a4e917232aa72be29e7341de8cd987e01">itemAlignment_</a>;</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="comment">// The size of an item, including the extra bytes requested and</span></div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <span class="comment">// any padding needed for alignment purposes:</span></div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocator.html#a3eae00a47fd0285023f116592a997ea1"> 168</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <span class="keyword">const</span> <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a3eae00a47fd0285023f116592a997ea1">itemSize_</a>;</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> </div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="comment">// The size of each individual slab:</span></div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocator.html#ad85f5730d223f0ba0be37c51b2cf660c"> 171</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <span class="keyword">const</span> <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#ad85f5730d223f0ba0be37c51b2cf660c">slabSize_</a>;</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> </div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span><span class="keyword">public</span>:</div>
<div class="foldopen" id="foldopen00182" data-start="{" data-end="}">
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocator.html#a0812a0805718c5c0967d4894b7822fe5"> 182</a></span> <span class="keyword">constexpr</span> <span class="keyword">explicit</span> <a class="code hl_function" href="classripple_1_1SlabAllocator.html#a0812a0805718c5c0967d4894b7822fe5">SlabAllocator</a>(</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> extra,</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> alloc = 0,</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> align = 0)</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> : <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a4e917232aa72be29e7341de8cd987e01">itemAlignment_</a>(align ? align : alignof(Type))</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> , <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a3eae00a47fd0285023f116592a997ea1">itemSize_</a>(</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <a class="code hl_namespace" href="namespaceboost.html">boost</a>::alignment::align_up(sizeof(Type) + extra, <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a4e917232aa72be29e7341de8cd987e01">itemAlignment_</a>))</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> , <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#ad85f5730d223f0ba0be37c51b2cf660c">slabSize_</a>(alloc)</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> XRPL_ASSERT(</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> (<a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a4e917232aa72be29e7341de8cd987e01">itemAlignment_</a> &amp; (<a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a4e917232aa72be29e7341de8cd987e01">itemAlignment_</a> - 1)) == 0,</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="stringliteral">&quot;ripple::SlabAllocator::SlabAllocator : valid alignment&quot;</span>);</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> }</div>
</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"><a class="line" href="classripple_1_1SlabAllocator.html#af3a0cd5ae8d6b24e2c5e169ddadbf7e6"> 196</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocator.html#af3a0cd5ae8d6b24e2c5e169ddadbf7e6">SlabAllocator</a>(<a class="code hl_class" href="classripple_1_1SlabAllocator.html">SlabAllocator</a> <span class="keyword">const</span>&amp; other) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <a class="code hl_class" href="classripple_1_1SlabAllocator.html">SlabAllocator</a>&amp;</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocator.html#a9ce13bc25d81a7df80141309ee8165c6"> 198</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocator.html#a9ce13bc25d81a7df80141309ee8165c6">operator=</a>(<a class="code hl_class" href="classripple_1_1SlabAllocator.html">SlabAllocator</a> <span class="keyword">const</span>&amp; other) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> </div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocator.html#af0953e1f8eb7b035b48c8f9cb223a815"> 200</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocator.html#af0953e1f8eb7b035b48c8f9cb223a815">SlabAllocator</a>(<a class="code hl_class" href="classripple_1_1SlabAllocator.html">SlabAllocator</a>&amp;&amp; other) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <a class="code hl_class" href="classripple_1_1SlabAllocator.html">SlabAllocator</a>&amp;</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocator.html#af54e471493108774671be0bb2bf23bd2"> 202</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocator.html#af54e471493108774671be0bb2bf23bd2">operator=</a>(<a class="code hl_class" href="classripple_1_1SlabAllocator.html">SlabAllocator</a>&amp;&amp; other) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> </div>
<div class="foldopen" id="foldopen00204" data-start="{" data-end="}">
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocator.html#abe19edc03ec24567c5f3d7e2858db715"> 204</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocator.html#abe19edc03ec24567c5f3d7e2858db715">~SlabAllocator</a>()</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> {</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="comment">// FIXME: We can&#39;t destroy the memory blocks we&#39;ve allocated, because</span></div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="comment">// we can&#39;t be sure that they are not being used. Cleaning the</span></div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> <span class="comment">// shutdown process up could make this possible.</span></div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> }</div>
</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> </div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a></div>
<div class="foldopen" id="foldopen00213" data-start="{" data-end="}">
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocator.html#a6d6d7d449e67409f252d02bdf3af20fe"> 213</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocator.html#a6d6d7d449e67409f252d02bdf3af20fe">size</a>() const noexcept</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> {</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a3eae00a47fd0285023f116592a997ea1">itemSize_</a>;</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> }</div>
</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> </div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>*</div>
<div class="foldopen" id="foldopen00224" data-start="{" data-end="}">
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocator.html#aa9718f6cac1c03a896f1517aa5079327"> 224</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocator.html#aa9718f6cac1c03a896f1517aa5079327">allocate</a>() noexcept</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> {</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> <span class="keyword">auto</span> slab = <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a706e50935a03ee1cba5aef0f292e702b">slabs_</a>.load();</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> </div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="keywordflow">while</span> (slab != <span class="keyword">nullptr</span>)</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> {</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <span class="keywordflow">if</span> (<span class="keyword">auto</span> ret = slab-&gt;allocate())</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="keywordflow">return</span> ret;</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> slab = slab-&gt;next_;</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> }</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> </div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="comment">// No slab can satisfy our request, so we attempt to allocate a new</span></div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="comment">// one here:</span></div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <a class="code hl_function" href="classripple_1_1SlabAllocator.html#a6d6d7d449e67409f252d02bdf3af20fe">size</a> = <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#ad85f5730d223f0ba0be37c51b2cf660c">slabSize_</a>;</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> </div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="comment">// We want to allocate the memory at a 2 MiB boundary, to make it</span></div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="comment">// possible to use hugepage mappings on Linux:</span></div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> <span class="keyword">auto</span> buf =</div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> boost::alignment::aligned_alloc(<a class="code hl_function" href="namespaceripple.html#a13d7c6c34d30731bbc221f629e03f8db">megabytes</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a>(2)), <a class="code hl_function" href="classripple_1_1SlabAllocator.html#a6d6d7d449e67409f252d02bdf3af20fe">size</a>);</div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> </div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="comment">// clang-format off</span></div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="keywordflow">if</span> (!buf) [[unlikely]]</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="comment">// clang-format on</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><span class="preprocessor">#if BOOST_OS_LINUX</span></div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="comment">// When allocating large blocks, attempt to leverage Linux&#39;s</span></div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> <span class="comment">// transparent hugepage support. It is unclear and difficult</span></div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> <span class="comment">// to accurately determine if doing this impacts performance</span></div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <span class="comment">// enough to justify using platform-specific tricks.</span></div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="classripple_1_1SlabAllocator.html#a6d6d7d449e67409f252d02bdf3af20fe">size</a> &gt;= <a class="code hl_function" href="namespaceripple.html#a13d7c6c34d30731bbc221f629e03f8db">megabytes</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a>(4)))</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> madvise(buf, <a class="code hl_function" href="classripple_1_1SlabAllocator.html#a6d6d7d449e67409f252d02bdf3af20fe">size</a>, MADV_HUGEPAGE);</div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> </div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <span class="comment">// We need to carve out a bit of memory for the slab header</span></div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <span class="comment">// and then align the rest appropriately:</span></div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="keyword">auto</span> slabData = <span class="keyword">reinterpret_cast&lt;</span><span class="keywordtype">void</span>*<span class="keyword">&gt;</span>(</div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> <span class="keyword">reinterpret_cast&lt;</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>*<span class="keyword">&gt;</span>(buf) + <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structripple_1_1SlabAllocator_1_1SlabBlock.html">SlabBlock</a>));</div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <span class="keyword">auto</span> slabSize = <a class="code hl_function" href="classripple_1_1SlabAllocator.html#a6d6d7d449e67409f252d02bdf3af20fe">size</a> - <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structripple_1_1SlabAllocator_1_1SlabBlock.html">SlabBlock</a>);</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> </div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> <span class="comment">// This operation is essentially guaranteed not to fail but</span></div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <span class="comment">// let&#39;s be careful anyways.</span></div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <span class="keywordflow">if</span> (!boost::alignment::align(</div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a4e917232aa72be29e7341de8cd987e01">itemAlignment_</a>, <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a3eae00a47fd0285023f116592a997ea1">itemSize_</a>, slabData, slabSize))</div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> {</div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> boost::alignment::aligned_free(buf);</div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> <span class="keywordflow">return</span> <span class="keyword">nullptr</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> slab = <span class="keyword">new</span> (buf) <a class="code hl_struct" href="structripple_1_1SlabAllocator_1_1SlabBlock.html">SlabBlock</a>(</div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a706e50935a03ee1cba5aef0f292e702b">slabs_</a>.load(),</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> <span class="keyword">reinterpret_cast&lt;</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>*<span class="keyword">&gt;</span>(slabData),</div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> slabSize,</div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a3eae00a47fd0285023f116592a997ea1">itemSize_</a>);</div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> </div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> <span class="comment">// Link the new slab</span></div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <span class="keywordflow">while</span> (!<a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a706e50935a03ee1cba5aef0f292e702b">slabs_</a>.compare_exchange_weak(</div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> slab-&gt;next_,</div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> slab,</div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_release</a>,</div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_relaxed</a>))</div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> {</div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> ; <span class="comment">// Nothing to do</span></div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> }</div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> </div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> <span class="keywordflow">return</span> slab-&gt;<a class="code hl_function" href="structripple_1_1SlabAllocator_1_1SlabBlock.html#af4144237273edd77728808494ea467a9">allocate</a>();</div>
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> }</div>
</div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> </div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> <span class="keywordtype">bool</span></div>
<div class="foldopen" id="foldopen00301" data-start="{" data-end="}">
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocator.html#aa696ee1e381a40ca0e52a1ad5632f866"> 301</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocator.html#aa696ee1e381a40ca0e52a1ad5632f866">deallocate</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>* ptr) <span class="keyword">noexcept</span></div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> {</div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> ptr,</div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> <span class="stringliteral">&quot;ripple::SlabAllocator::SlabAllocator::deallocate : non-null &quot;</span></div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> <span class="stringliteral">&quot;input&quot;</span>);</div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> </div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span> slab = <a class="code hl_variable" href="classripple_1_1SlabAllocator.html#a706e50935a03ee1cba5aef0f292e702b">slabs_</a>.load(); slab != <span class="keyword">nullptr</span>; slab = slab-&gt;next_)</div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> {</div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="keywordflow">if</span> (slab-&gt;own(ptr))</div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> {</div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> slab-&gt;deallocate(ptr);</div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> }</div>
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> }</div>
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> </div>
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> }</div>
</div>
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span>};</div>
</div>
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> </div>
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Type&gt;</div>
<div class="foldopen" id="foldopen00323" data-start="{" data-end="};">
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet.html"> 323</a></span><span class="keyword">class </span><a class="code hl_class" href="classripple_1_1SlabAllocatorSet.html">SlabAllocatorSet</a></div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span>{</div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> <span class="comment">// The list of allocators that belong to this set</span></div>
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet.html#a7e3c9651574fa345c32d8de9451e07aa"> 327</a></span> boost::container::static_vector&lt;SlabAllocator&lt;Type&gt;, 64&gt; <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet.html#a7e3c9651574fa345c32d8de9451e07aa">allocators_</a>;</div>
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> </div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet.html#a96e56f2b07cb747c0ec4a7ff3b79e1a5"> 329</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet.html#a96e56f2b07cb747c0ec4a7ff3b79e1a5">maxSize_</a> = 0;</div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> </div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span><span class="keyword">public</span>:</div>
<div class="foldopen" id="foldopen00332" data-start="{" data-end="};">
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html"> 332</a></span> <span class="keyword">class </span><a class="code hl_class" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html">SlabConfig</a></div>
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> {</div>
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#a78daa74b7baad73946d3d3f397e0f6d8"> 334</a></span> <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classripple_1_1SlabAllocatorSet.html">SlabAllocatorSet</a>;</div>
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> </div>
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#ad54951a71724414fb61a7dd990a9f5e5"> 337</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#ad54951a71724414fb61a7dd990a9f5e5">extra</a>;</div>
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#a3f88ab397efd3af31b7663fe11891ab1"> 338</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#a3f88ab397efd3af31b7663fe11891ab1">alloc</a>;</div>
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#a1cd5cfcdd3ed0be7a147cfbea4cb1ab8"> 339</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#a1cd5cfcdd3ed0be7a147cfbea4cb1ab8">align</a>;</div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> </div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> <span class="keyword">public</span>:</div>
<div class="foldopen" id="foldopen00342" data-start="{" data-end="}">
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#a7e77dc8f940be934583eb1927fd2aa2c"> 342</a></span> <span class="keyword">constexpr</span> <a class="code hl_function" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#a7e77dc8f940be934583eb1927fd2aa2c">SlabConfig</a>(</div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> extra_,</div>
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> alloc_ = 0,</div>
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> align_ = <span class="keyword">alignof</span>(Type))</div>
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> : <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#ad54951a71724414fb61a7dd990a9f5e5">extra</a>(extra_), <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#a3f88ab397efd3af31b7663fe11891ab1">alloc</a>(alloc_), <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#a1cd5cfcdd3ed0be7a147cfbea4cb1ab8">align</a>(align_)</div>
<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> {</div>
<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> }</div>
</div>
<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> };</div>
</div>
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> </div>
<div class="foldopen" id="foldopen00351" data-start="{" data-end="}">
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet.html#a4895e2fb1cc2a14b851347f9fb0696a7"> 351</a></span> <span class="keyword">constexpr</span> <a class="code hl_function" href="classripple_1_1SlabAllocatorSet.html#a4895e2fb1cc2a14b851347f9fb0696a7">SlabAllocatorSet</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;SlabConfig&gt;</a> cfg)</div>
<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> {</div>
<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> <span class="comment">// Ensure that the specified allocators are sorted from smallest to</span></div>
<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> <span class="comment">// largest by size:</span></div>
<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/algorithm/sort.html">std::sort</a>(</div>
<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/begin.html">std::begin</a>(cfg),</div>
<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/end.html">std::end</a>(cfg),</div>
<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> [](<a class="code hl_class" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html">SlabConfig</a> <span class="keyword">const</span>&amp; a, <a class="code hl_class" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html">SlabConfig</a> <span class="keyword">const</span>&amp; b) {</div>
<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> <span class="keywordflow">return</span> a.<a class="code hl_variable" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#ad54951a71724414fb61a7dd990a9f5e5">extra</a> &lt; b.<a class="code hl_variable" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#ad54951a71724414fb61a7dd990a9f5e5">extra</a>;</div>
<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> });</div>
<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> </div>
<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> <span class="comment">// We should never have two slabs of the same size</span></div>
<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> <span class="keywordflow">if</span> (<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/algorithm/adjacent_find.html">std::adjacent_find</a>(</div>
<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/begin.html">std::begin</a>(cfg),</div>
<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/end.html">std::end</a>(cfg),</div>
<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> [](<a class="code hl_class" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html">SlabConfig</a> <span class="keyword">const</span>&amp; a, <a class="code hl_class" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html">SlabConfig</a> <span class="keyword">const</span>&amp; b) {</div>
<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> <span class="keywordflow">return</span> a.<a class="code hl_variable" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#ad54951a71724414fb61a7dd990a9f5e5">extra</a> == b.<a class="code hl_variable" href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#ad54951a71724414fb61a7dd990a9f5e5">extra</a>;</div>
<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> }) != cfg.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/end.html">end</a>())</div>
<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> {</div>
<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span> <span class="keywordflow">throw</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/error/runtime_error.html">std::runtime_error</a>(</div>
<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> <span class="stringliteral">&quot;SlabAllocatorSet&lt;&quot;</span> + beast::type_name&lt;Type&gt;() +</div>
<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> <span class="stringliteral">&quot;&gt;: duplicate slab size&quot;</span>);</div>
<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> }</div>
<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> </div>
<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span> <span class="keyword">const</span>&amp; c : cfg)</div>
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> {</div>
<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> <span class="keyword">auto</span>&amp; a = <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet.html#a7e3c9651574fa345c32d8de9451e07aa">allocators_</a>.emplace_back(c.extra, c.alloc, c.align);</div>
<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> </div>
<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> <span class="keywordflow">if</span> (a.size() &gt; <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet.html#a96e56f2b07cb747c0ec4a7ff3b79e1a5">maxSize_</a>)</div>
<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet.html#a96e56f2b07cb747c0ec4a7ff3b79e1a5">maxSize_</a> = a.size();</div>
<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> }</div>
<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> }</div>
</div>
<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> </div>
<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet.html#abe3829d9fbdf088785612cd77e5b1e5a"> 384</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocatorSet.html#abe3829d9fbdf088785612cd77e5b1e5a">SlabAllocatorSet</a>(<a class="code hl_class" href="classripple_1_1SlabAllocatorSet.html">SlabAllocatorSet</a> <span class="keyword">const</span>&amp; other) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> <a class="code hl_class" href="classripple_1_1SlabAllocatorSet.html">SlabAllocatorSet</a>&amp;</div>
<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet.html#af0542b7e0c0dacf2ff3912037c56c6b2"> 386</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocatorSet.html#af0542b7e0c0dacf2ff3912037c56c6b2">operator=</a>(<a class="code hl_class" href="classripple_1_1SlabAllocatorSet.html">SlabAllocatorSet</a> <span class="keyword">const</span>&amp; other) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span> </div>
<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet.html#a611d5a0e06b49b186d73bf3b484c59cf"> 388</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocatorSet.html#a611d5a0e06b49b186d73bf3b484c59cf">SlabAllocatorSet</a>(<a class="code hl_class" href="classripple_1_1SlabAllocatorSet.html">SlabAllocatorSet</a>&amp;&amp; other) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span> <a class="code hl_class" href="classripple_1_1SlabAllocatorSet.html">SlabAllocatorSet</a>&amp;</div>
<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet.html#a56e046a7551c846fb99da2d897758c34"> 390</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocatorSet.html#a56e046a7551c846fb99da2d897758c34">operator=</a>(<a class="code hl_class" href="classripple_1_1SlabAllocatorSet.html">SlabAllocatorSet</a>&amp;&amp; other) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span> </div>
<div class="foldopen" id="foldopen00392" data-start="{" data-end="}">
<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet.html#a41f6365b75ec1f8507f475b7285363af"> 392</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocatorSet.html#a41f6365b75ec1f8507f475b7285363af">~SlabAllocatorSet</a>()</div>
<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> {</div>
<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> }</div>
</div>
<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> </div>
<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>*</div>
<div class="foldopen" id="foldopen00405" data-start="{" data-end="}">
<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet.html#a9647fb9a3f49841ebacd67975e615a4c"> 405</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocatorSet.html#a9647fb9a3f49841ebacd67975e615a4c">allocate</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> extra) <span class="keyword">noexcept</span></div>
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span> {</div>
<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> <span class="keywordflow">if</span> (<span class="keyword">auto</span> <span class="keyword">const</span> size = <span class="keyword">sizeof</span>(Type) + extra; size &lt;= <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet.html#a96e56f2b07cb747c0ec4a7ff3b79e1a5">maxSize_</a>)</div>
<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span> {</div>
<div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span>&amp; a : <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet.html#a7e3c9651574fa345c32d8de9451e07aa">allocators_</a>)</div>
<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span> {</div>
<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> <span class="keywordflow">if</span> (a.size() &gt;= size)</div>
<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> <span class="keywordflow">return</span> a.allocate();</div>
<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> }</div>
<div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> }</div>
<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> </div>
<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> }</div>
</div>
<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> </div>
<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> <span class="keywordtype">bool</span></div>
<div class="foldopen" id="foldopen00427" data-start="{" data-end="}">
<div class="line"><a id="l00427" name="l00427"></a><span class="lineno"><a class="line" href="classripple_1_1SlabAllocatorSet.html#aaf360fb8c1f9471de8f48bba01a8ac90"> 427</a></span> <a class="code hl_function" href="classripple_1_1SlabAllocatorSet.html#aaf360fb8c1f9471de8f48bba01a8ac90">deallocate</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a>* ptr) <span class="keyword">noexcept</span></div>
<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> {</div>
<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span>&amp; a : <a class="code hl_variable" href="classripple_1_1SlabAllocatorSet.html#a7e3c9651574fa345c32d8de9451e07aa">allocators_</a>)</div>
<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> {</div>
<div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span> <span class="keywordflow">if</span> (a.deallocate(ptr))</div>
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span> }</div>
<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span> </div>
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> }</div>
</div>
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span>};</div>
</div>
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> </div>
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span>} <span class="comment">// namespace ripple</span></div>
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> </div>
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span><span class="preprocessor">#endif </span><span class="comment">// RIPPLE_BASICS_SLABALLOCATOR_H_INCLUDED</span></div>
<div class="ttc" id="aadjacent_find_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/adjacent_find.html">std::adjacent_find</a></div><div class="ttdeci">T adjacent_find(T... args)</div></div>
<div class="ttc" id="aalgorithm_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/algorithm.html">algorithm</a></div></div>
<div class="ttc" id="aatomic_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/atomic.html">atomic</a></div></div>
<div class="ttc" id="abegin_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/begin.html">std::begin</a></div><div class="ttdeci">T begin(T... args)</div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_1_1SlabConfig_html"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html">ripple::SlabAllocatorSet::SlabConfig</a></div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00332">SlabAllocator.h:333</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_1_1SlabConfig_html_a1cd5cfcdd3ed0be7a147cfbea4cb1ab8"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#a1cd5cfcdd3ed0be7a147cfbea4cb1ab8">ripple::SlabAllocatorSet::SlabConfig::align</a></div><div class="ttdeci">std::size_t align</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00339">SlabAllocator.h:339</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_1_1SlabConfig_html_a3f88ab397efd3af31b7663fe11891ab1"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#a3f88ab397efd3af31b7663fe11891ab1">ripple::SlabAllocatorSet::SlabConfig::alloc</a></div><div class="ttdeci">std::size_t alloc</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00338">SlabAllocator.h:338</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_1_1SlabConfig_html_a7e77dc8f940be934583eb1927fd2aa2c"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#a7e77dc8f940be934583eb1927fd2aa2c">ripple::SlabAllocatorSet::SlabConfig::SlabConfig</a></div><div class="ttdeci">constexpr SlabConfig(std::size_t extra_, std::size_t alloc_=0, std::size_t align_=alignof(Type))</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00342">SlabAllocator.h:342</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_1_1SlabConfig_html_ad54951a71724414fb61a7dd990a9f5e5"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet_1_1SlabConfig.html#ad54951a71724414fb61a7dd990a9f5e5">ripple::SlabAllocatorSet::SlabConfig::extra</a></div><div class="ttdeci">std::size_t extra</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00337">SlabAllocator.h:337</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_html"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet.html">ripple::SlabAllocatorSet</a></div><div class="ttdoc">A collection of slab allocators of various sizes for a given type.</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00323">SlabAllocator.h:324</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_html_a41f6365b75ec1f8507f475b7285363af"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet.html#a41f6365b75ec1f8507f475b7285363af">ripple::SlabAllocatorSet::~SlabAllocatorSet</a></div><div class="ttdeci">~SlabAllocatorSet()</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00392">SlabAllocator.h:392</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_html_a4895e2fb1cc2a14b851347f9fb0696a7"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet.html#a4895e2fb1cc2a14b851347f9fb0696a7">ripple::SlabAllocatorSet::SlabAllocatorSet</a></div><div class="ttdeci">constexpr SlabAllocatorSet(std::vector&lt; SlabConfig &gt; cfg)</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00351">SlabAllocator.h:351</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_html_a56e046a7551c846fb99da2d897758c34"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet.html#a56e046a7551c846fb99da2d897758c34">ripple::SlabAllocatorSet::operator=</a></div><div class="ttdeci">SlabAllocatorSet &amp; operator=(SlabAllocatorSet &amp;&amp;other)=delete</div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_html_a611d5a0e06b49b186d73bf3b484c59cf"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet.html#a611d5a0e06b49b186d73bf3b484c59cf">ripple::SlabAllocatorSet::SlabAllocatorSet</a></div><div class="ttdeci">SlabAllocatorSet(SlabAllocatorSet &amp;&amp;other)=delete</div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_html_a7e3c9651574fa345c32d8de9451e07aa"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet.html#a7e3c9651574fa345c32d8de9451e07aa">ripple::SlabAllocatorSet::allocators_</a></div><div class="ttdeci">boost::container::static_vector&lt; SlabAllocator&lt; Type &gt;, 64 &gt; allocators_</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00327">SlabAllocator.h:327</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_html_a9647fb9a3f49841ebacd67975e615a4c"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet.html#a9647fb9a3f49841ebacd67975e615a4c">ripple::SlabAllocatorSet::allocate</a></div><div class="ttdeci">std::uint8_t * allocate(std::size_t extra) noexcept</div><div class="ttdoc">Returns a suitably aligned pointer, if one is available.</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00405">SlabAllocator.h:405</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_html_a96e56f2b07cb747c0ec4a7ff3b79e1a5"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet.html#a96e56f2b07cb747c0ec4a7ff3b79e1a5">ripple::SlabAllocatorSet::maxSize_</a></div><div class="ttdeci">std::size_t maxSize_</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00329">SlabAllocator.h:329</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_html_aaf360fb8c1f9471de8f48bba01a8ac90"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet.html#aaf360fb8c1f9471de8f48bba01a8ac90">ripple::SlabAllocatorSet::deallocate</a></div><div class="ttdeci">bool deallocate(std::uint8_t *ptr) noexcept</div><div class="ttdoc">Returns the memory block to the allocator.</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00427">SlabAllocator.h:427</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_html_abe3829d9fbdf088785612cd77e5b1e5a"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet.html#abe3829d9fbdf088785612cd77e5b1e5a">ripple::SlabAllocatorSet::SlabAllocatorSet</a></div><div class="ttdeci">SlabAllocatorSet(SlabAllocatorSet const &amp;other)=delete</div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocatorSet_html_af0542b7e0c0dacf2ff3912037c56c6b2"><div class="ttname"><a href="classripple_1_1SlabAllocatorSet.html#af0542b7e0c0dacf2ff3912037c56c6b2">ripple::SlabAllocatorSet::operator=</a></div><div class="ttdeci">SlabAllocatorSet &amp; operator=(SlabAllocatorSet const &amp;other)=delete</div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html"><div class="ttname"><a href="classripple_1_1SlabAllocator.html">ripple::SlabAllocator</a></div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00045">SlabAllocator.h:46</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html_a0812a0805718c5c0967d4894b7822fe5"><div class="ttname"><a href="classripple_1_1SlabAllocator.html#a0812a0805718c5c0967d4894b7822fe5">ripple::SlabAllocator::SlabAllocator</a></div><div class="ttdeci">constexpr SlabAllocator(std::size_t extra, std::size_t alloc=0, std::size_t align=0)</div><div class="ttdoc">Constructs a slab allocator able to allocate objects of a fixed size.</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00182">SlabAllocator.h:182</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html_a3eae00a47fd0285023f116592a997ea1"><div class="ttname"><a href="classripple_1_1SlabAllocator.html#a3eae00a47fd0285023f116592a997ea1">ripple::SlabAllocator::itemSize_</a></div><div class="ttdeci">std::size_t const itemSize_</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00168">SlabAllocator.h:168</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html_a4e917232aa72be29e7341de8cd987e01"><div class="ttname"><a href="classripple_1_1SlabAllocator.html#a4e917232aa72be29e7341de8cd987e01">ripple::SlabAllocator::itemAlignment_</a></div><div class="ttdeci">std::size_t const itemAlignment_</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00164">SlabAllocator.h:164</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html_a6d6d7d449e67409f252d02bdf3af20fe"><div class="ttname"><a href="classripple_1_1SlabAllocator.html#a6d6d7d449e67409f252d02bdf3af20fe">ripple::SlabAllocator::size</a></div><div class="ttdeci">constexpr std::size_t size() const noexcept</div><div class="ttdoc">Returns the size of the memory block this allocator returns.</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00213">SlabAllocator.h:213</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html_a706e50935a03ee1cba5aef0f292e702b"><div class="ttname"><a href="classripple_1_1SlabAllocator.html#a706e50935a03ee1cba5aef0f292e702b">ripple::SlabAllocator::slabs_</a></div><div class="ttdeci">std::atomic&lt; SlabBlock * &gt; slabs_</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00161">SlabAllocator.h:161</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html_a9ce13bc25d81a7df80141309ee8165c6"><div class="ttname"><a href="classripple_1_1SlabAllocator.html#a9ce13bc25d81a7df80141309ee8165c6">ripple::SlabAllocator::operator=</a></div><div class="ttdeci">SlabAllocator &amp; operator=(SlabAllocator const &amp;other)=delete</div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html_aa696ee1e381a40ca0e52a1ad5632f866"><div class="ttname"><a href="classripple_1_1SlabAllocator.html#aa696ee1e381a40ca0e52a1ad5632f866">ripple::SlabAllocator::deallocate</a></div><div class="ttdeci">bool deallocate(std::uint8_t *ptr) noexcept</div><div class="ttdoc">Returns the memory block to the allocator.</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00301">SlabAllocator.h:301</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html_aa9718f6cac1c03a896f1517aa5079327"><div class="ttname"><a href="classripple_1_1SlabAllocator.html#aa9718f6cac1c03a896f1517aa5079327">ripple::SlabAllocator::allocate</a></div><div class="ttdeci">std::uint8_t * allocate() noexcept</div><div class="ttdoc">Returns a suitably aligned pointer, if one is available.</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00224">SlabAllocator.h:224</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html_abe19edc03ec24567c5f3d7e2858db715"><div class="ttname"><a href="classripple_1_1SlabAllocator.html#abe19edc03ec24567c5f3d7e2858db715">ripple::SlabAllocator::~SlabAllocator</a></div><div class="ttdeci">~SlabAllocator()</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00204">SlabAllocator.h:204</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html_ad85f5730d223f0ba0be37c51b2cf660c"><div class="ttname"><a href="classripple_1_1SlabAllocator.html#ad85f5730d223f0ba0be37c51b2cf660c">ripple::SlabAllocator::slabSize_</a></div><div class="ttdeci">std::size_t const slabSize_</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00171">SlabAllocator.h:171</a></div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html_af0953e1f8eb7b035b48c8f9cb223a815"><div class="ttname"><a href="classripple_1_1SlabAllocator.html#af0953e1f8eb7b035b48c8f9cb223a815">ripple::SlabAllocator::SlabAllocator</a></div><div class="ttdeci">SlabAllocator(SlabAllocator &amp;&amp;other)=delete</div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html_af3a0cd5ae8d6b24e2c5e169ddadbf7e6"><div class="ttname"><a href="classripple_1_1SlabAllocator.html#af3a0cd5ae8d6b24e2c5e169ddadbf7e6">ripple::SlabAllocator::SlabAllocator</a></div><div class="ttdeci">SlabAllocator(SlabAllocator const &amp;other)=delete</div></div>
<div class="ttc" id="aclassripple_1_1SlabAllocator_html_af54e471493108774671be0bb2bf23bd2"><div class="ttname"><a href="classripple_1_1SlabAllocator.html#af54e471493108774671be0bb2bf23bd2">ripple::SlabAllocator::operator=</a></div><div class="ttdeci">SlabAllocator &amp; operator=(SlabAllocator &amp;&amp;other)=delete</div></div>
<div class="ttc" id="acstdint_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/cstdint.html">cstdint</a></div></div>
<div class="ttc" id="acstring_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/cstring.html">cstring</a></div></div>
<div class="ttc" id="aend_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/end.html">std::end</a></div><div class="ttdeci">T end(T... args)</div></div>
<div class="ttc" id="ainteger_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a></div></div>
<div class="ttc" id="ais_same_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/is_same.html">std::is_same_v</a></div><div class="ttdeci">T is_same_v</div></div>
<div class="ttc" id="alock_guard_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a></div></div>
<div class="ttc" id="amemcpy_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/byte/memcpy.html">std::memcpy</a></div><div class="ttdeci">T memcpy(T... args)</div></div>
<div class="ttc" id="amutex_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/mutex.html">mutex</a></div></div>
<div class="ttc" id="anamespaceboost_html"><div class="ttname"><a href="namespaceboost.html">boost</a></div><div class="ttdef"><b>Definition</b> <a href="IPAddress_8h_source.html#l00101">IPAddress.h:101</a></div></div>
<div class="ttc" id="anamespaceripple_html"><div class="ttname"><a href="namespaceripple.html">ripple</a></div><div class="ttdoc">Use hash_* containers for keys that do not need a cryptographically secure hashing algorithm.</div><div class="ttdef"><b>Definition</b> <a href="algorithm_8h_source.html#l00025">algorithm.h:25</a></div></div>
<div class="ttc" id="anamespaceripple_html_a13d7c6c34d30731bbc221f629e03f8db"><div class="ttname"><a href="namespaceripple.html#a13d7c6c34d30731bbc221f629e03f8db">ripple::megabytes</a></div><div class="ttdeci">constexpr auto megabytes(T value) noexcept</div><div class="ttdef"><b>Definition</b> <a href="ByteUtilities_8h_source.html#l00034">ByteUtilities.h:34</a></div></div>
<div class="ttc" id="aruntime_error_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/error/runtime_error.html">std::runtime_error</a></div></div>
<div class="ttc" id="asize_t_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a></div></div>
<div class="ttc" id="asort_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/sort.html">std::sort</a></div><div class="ttdeci">T sort(T... args)</div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html">ripple::SlabAllocator::SlabBlock</a></div><div class="ttdoc">A block of memory that is owned by a slab allocator.</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00054">SlabAllocator.h:55</a></div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_a0857c5a2b90481de09acad1f7efedd74"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a0857c5a2b90481de09acad1f7efedd74">ripple::SlabAllocator::SlabBlock::own</a></div><div class="ttdeci">bool own(std::uint8_t const *p) const noexcept</div><div class="ttdoc">Determines whether the given pointer belongs to this allocator.</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00108">SlabAllocator.h:108</a></div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_a1c8358e65cf81019737a66dffe0887af"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a1c8358e65cf81019737a66dffe0887af">ripple::SlabAllocator::SlabBlock::next_</a></div><div class="ttdeci">SlabBlock * next_</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00063">SlabAllocator.h:63</a></div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_a3d97e4d8de0778cd8f11a7c26c2f5301"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a3d97e4d8de0778cd8f11a7c26c2f5301">ripple::SlabAllocator::SlabBlock::deallocate</a></div><div class="ttdeci">void deallocate(std::uint8_t *ptr) noexcept</div><div class="ttdoc">Return an item to this allocator's freelist.</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00144">SlabAllocator.h:144</a></div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_a41304305a62494bccb36844c088879ec"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a41304305a62494bccb36844c088879ec">ripple::SlabAllocator::SlabBlock::operator=</a></div><div class="ttdeci">SlabBlock &amp; operator=(SlabBlock const &amp;other)=delete</div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_a531411f3231aa0ae9aa735da7c739ce4"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a531411f3231aa0ae9aa735da7c739ce4">ripple::SlabAllocator::SlabBlock::m_</a></div><div class="ttdeci">std::mutex m_</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00057">SlabAllocator.h:57</a></div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_a5fdbf7befe4aef1abc3a3038f5351dca"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a5fdbf7befe4aef1abc3a3038f5351dca">ripple::SlabAllocator::SlabBlock::SlabBlock</a></div><div class="ttdeci">SlabBlock(SlabBlock &amp;&amp;other)=delete</div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_a8db542e10fce31f924163e4cc3d04a62"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#a8db542e10fce31f924163e4cc3d04a62">ripple::SlabAllocator::SlabBlock::p_</a></div><div class="ttdeci">std::uint8_t const *const p_</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00066">SlabAllocator.h:66</a></div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_aae3b881e26f20ed039f89906952ee9ba"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#aae3b881e26f20ed039f89906952ee9ba">ripple::SlabAllocator::SlabBlock::SlabBlock</a></div><div class="ttdeci">SlabBlock(SlabBlock *next, std::uint8_t *data, std::size_t size, std::size_t item)</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00071">SlabAllocator.h:71</a></div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_aafc185f1180caa56ca93985bd66a1d24"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#aafc185f1180caa56ca93985bd66a1d24">ripple::SlabAllocator::SlabBlock::size_</a></div><div class="ttdeci">std::size_t const size_</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00069">SlabAllocator.h:69</a></div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_adbdf9cfef60136abf24d8778e72487d9"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#adbdf9cfef60136abf24d8778e72487d9">ripple::SlabAllocator::SlabBlock::SlabBlock</a></div><div class="ttdeci">SlabBlock(SlabBlock const &amp;other)=delete</div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_adfeb156b3aabe7e20995c2ef0291829d"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#adfeb156b3aabe7e20995c2ef0291829d">ripple::SlabAllocator::SlabBlock::~SlabBlock</a></div><div class="ttdeci">~SlabBlock()</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00091">SlabAllocator.h:91</a></div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_ae86708a8fd44754f5955cae59a42d0ae"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#ae86708a8fd44754f5955cae59a42d0ae">ripple::SlabAllocator::SlabBlock::l_</a></div><div class="ttdeci">std::uint8_t * l_</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00060">SlabAllocator.h:60</a></div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_af4144237273edd77728808494ea467a9"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#af4144237273edd77728808494ea467a9">ripple::SlabAllocator::SlabBlock::allocate</a></div><div class="ttdeci">std::uint8_t * allocate() noexcept</div><div class="ttdef"><b>Definition</b> <a href="SlabAllocator_8h_source.html#l00114">SlabAllocator.h:114</a></div></div>
<div class="ttc" id="astructripple_1_1SlabAllocator_1_1SlabBlock_html_afc9167178ec20048b5f0d626d4face10"><div class="ttname"><a href="structripple_1_1SlabAllocator_1_1SlabBlock.html#afc9167178ec20048b5f0d626d4face10">ripple::SlabAllocator::SlabBlock::operator=</a></div><div class="ttdeci">SlabBlock &amp; operator=(SlabBlock &amp;&amp;other)=delete</div></div>
<div class="ttc" id="avector_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/vector.html">vector</a></div></div>
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