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<div class="title">memory.h</div> </div>
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<a href="3rdparty_2dmlc-core_2include_2dmlc_2memory_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160; </div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="preprocessor">#ifndef DMLC_MEMORY_H_</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#define DMLC_MEMORY_H_</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160; </div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &lt;memory&gt;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &lt;utility&gt;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="3rdparty_2dmlc-core_2include_2dmlc_2base_8h.html">./base.h</a>&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;./logging.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="thread__local_8h.html">./thread_local.h</a>&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160; </div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacedmlc.html">dmlc</a> {</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160; </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="keyword">template</span>&lt;<span class="keywordtype">size_t</span> size, <span class="keywordtype">size_t</span> align&gt;</div>
<div class="line"><a name="l00024"></a><span class="lineno"><a class="line" href="classdmlc_1_1MemoryPool.html"> 24</a></span>&#160;<span class="keyword">class </span><a class="code" href="classdmlc_1_1MemoryPool.html">MemoryPool</a> {</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="classdmlc_1_1MemoryPool.html#a740c11194c904ee61a3f78e70dda3ae8"> 27</a></span>&#160; <a class="code" href="classdmlc_1_1MemoryPool.html#a740c11194c904ee61a3f78e70dda3ae8">MemoryPool</a>() {</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; static_assert(align % <span class="keyword">alignof</span>(LinkedList) == 0,</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; <span class="stringliteral">&quot;alignment requirement failed.&quot;</span>);</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; curr_page_.reset(<span class="keyword">new</span> Page());</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; }</div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="classdmlc_1_1MemoryPool.html#a891d237cfb487524ee4934d9c9c91a48"> 33</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">void</span>* <a class="code" href="classdmlc_1_1MemoryPool.html#a891d237cfb487524ee4934d9c9c91a48">allocate</a>() {</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <span class="keywordflow">if</span> (head_ != <span class="keyword">nullptr</span>) {</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; LinkedList* ret = head_;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; head_ = head_-&gt;next;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="keywordflow">if</span> (page_ptr_ &lt; kPageSize) {</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keywordflow">return</span> &amp;(curr_page_-&gt;data[page_ptr_++]);</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; allocated_.push_back(std::move(curr_page_));</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; curr_page_.reset(<span class="keyword">new</span> Page());</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; page_ptr_ = 1;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="keywordflow">return</span> &amp;(curr_page_-&gt;data[0]);</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; }</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; }</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; }</div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="classdmlc_1_1MemoryPool.html#af79108ad8be488fa46dffec19a43cc92"> 53</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classdmlc_1_1MemoryPool.html#af79108ad8be488fa46dffec19a43cc92">deallocate</a>(<span class="keywordtype">void</span>* p) {</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; LinkedList* ptr = <span class="keyword">static_cast&lt;</span>LinkedList*<span class="keyword">&gt;</span>(p);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; ptr-&gt;next = head_;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; head_ = ptr;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; }</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="comment">// page size of each member</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> kPageSize = ((1 &lt;&lt; 22) / size);</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="comment">// page to be requested.</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="keyword">struct </span>Page {</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="keyword">typename</span> std::aligned_storage&lt;size, align&gt;::type data[kPageSize];</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; };</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="comment">// internal linked list structure.</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="keyword">struct </span>LinkedList {</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; LinkedList* next{<span class="keyword">nullptr</span>};</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; };</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="comment">// head of free list</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; LinkedList* head_{<span class="keyword">nullptr</span>};</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="comment">// current free page</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; std::unique_ptr&lt;Page&gt; curr_page_;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="comment">// pointer to the current free page position.</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="keywordtype">size_t</span> page_ptr_{0};</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="comment">// allocated pages.</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; std::vector&lt;std::unique_ptr&lt;Page&gt; &gt; allocated_;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;};</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="classdmlc_1_1ThreadlocalAllocator.html"> 87</a></span>&#160;<span class="keyword">class </span><a class="code" href="classdmlc_1_1ThreadlocalAllocator.html">ThreadlocalAllocator</a> {</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="classdmlc_1_1ThreadlocalAllocator.html#aa9509829a2b96a97eca105cfc918f8ee"> 90</a></span>&#160; <span class="keyword">typedef</span> T* <a class="code" href="classdmlc_1_1ThreadlocalAllocator.html#aa9509829a2b96a97eca105cfc918f8ee">pointer</a>;</div>
<div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="classdmlc_1_1ThreadlocalAllocator.html#a8532d289334d9ba00bb12aa3177ccef2"> 92</a></span>&#160; <span class="keyword">typedef</span> <span class="keyword">const</span> T* <a class="code" href="classdmlc_1_1ThreadlocalAllocator.html#a8532d289334d9ba00bb12aa3177ccef2">const_ptr</a>;</div>
<div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="classdmlc_1_1ThreadlocalAllocator.html#a15e68f08f76d0dca8fd10bd09ace570c"> 94</a></span>&#160; <span class="keyword">typedef</span> T <a class="code" href="classdmlc_1_1ThreadlocalAllocator.html#a15e68f08f76d0dca8fd10bd09ace570c">value_type</a>;</div>
<div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="classdmlc_1_1ThreadlocalAllocator.html#a647ff459997d57e201cf295a8afea966"> 96</a></span>&#160; <a class="code" href="classdmlc_1_1ThreadlocalAllocator.html#a647ff459997d57e201cf295a8afea966">ThreadlocalAllocator</a>() {}</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> U&gt;</div>
<div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="classdmlc_1_1ThreadlocalAllocator.html#adc4594319463c55342eccaf3e49b0109"> 103</a></span>&#160; <a class="code" href="classdmlc_1_1ThreadlocalAllocator.html#adc4594319463c55342eccaf3e49b0109">ThreadlocalAllocator</a>(<span class="keyword">const</span> <a class="code" href="classdmlc_1_1ThreadlocalAllocator.html">ThreadlocalAllocator&lt;U&gt;</a>&amp; other) {}</div>
<div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="classdmlc_1_1ThreadlocalAllocator.html#ae0d77e0a063397c0f769f04947e662bd"> 109</a></span>&#160; <span class="keyword">inline</span> T* <a class="code" href="classdmlc_1_1ThreadlocalAllocator.html#ae0d77e0a063397c0f769f04947e662bd">allocate</a>(<span class="keywordtype">size_t</span> n) {</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; CHECK_EQ(n, 1);</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keyword">typedef</span> <a class="code" href="classdmlc_1_1ThreadLocalStore.html">ThreadLocalStore</a>&lt;<a class="code" href="classdmlc_1_1MemoryPool.html">MemoryPool</a>&lt;<span class="keyword">sizeof</span>(T), <span class="keyword">alignof</span>(T)&gt; &gt; Store;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>T*<span class="keyword">&gt;</span>(Store::Get()-&gt;allocate());</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; }</div>
<div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="classdmlc_1_1ThreadlocalAllocator.html#aa13d2a783f533d59a3d00c84c547a647"> 119</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classdmlc_1_1ThreadlocalAllocator.html#aa13d2a783f533d59a3d00c84c547a647">deallocate</a>(T* p, <span class="keywordtype">size_t</span> n) {</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; CHECK_EQ(n, 1);</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="keyword">typedef</span> <a class="code" href="classdmlc_1_1ThreadLocalStore.html">ThreadLocalStore</a>&lt;<a class="code" href="classdmlc_1_1MemoryPool.html">MemoryPool</a>&lt;<span class="keyword">sizeof</span>(T), <span class="keyword">alignof</span>(T)&gt; &gt; Store;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; Store::Get()-&gt;<a class="code" href="classdmlc_1_1MemoryPool.html#af79108ad8be488fa46dffec19a43cc92">deallocate</a>(p);</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; }</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;};</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; </div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00134"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html"> 134</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html">ThreadlocalSharedPtr</a> {</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#ada84fe8ca4b84369f19cd0348598498d"> 137</a></span>&#160; <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#ada84fe8ca4b84369f19cd0348598498d">ThreadlocalSharedPtr</a>() : block_(nullptr) {}</div>
<div class="line"><a name="l00142"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#adc6034034fd64b3cdb4080840936748c"> 142</a></span>&#160; <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#adc6034034fd64b3cdb4080840936748c">ThreadlocalSharedPtr</a>(std::nullptr_t other) : block_(nullptr) {} <span class="comment">// NOLINT(*)</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#ae8cc365543b3aa0811129b3eeba69a60"> 147</a></span>&#160;<span class="comment"></span> <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#ae8cc365543b3aa0811129b3eeba69a60">ThreadlocalSharedPtr</a>(<span class="keyword">const</span> <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html">ThreadlocalSharedPtr&lt;T&gt;</a>&amp; other)</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; : block_(other.block_) {</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; IncRef(block_);</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; }</div>
<div class="line"><a name="l00155"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#ab6746ec2195a54211481c89f88f29985"> 155</a></span>&#160; <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#ab6746ec2195a54211481c89f88f29985">ThreadlocalSharedPtr</a>(<a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html">ThreadlocalSharedPtr&lt;T&gt;</a>&amp;&amp; other)</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; : block_(other.block_) {</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; other.block_ = <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; }</div>
<div class="line"><a name="l00162"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#ae8245ab0d440647cb88e33a14b5c34a3"> 162</a></span>&#160; <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#ae8245ab0d440647cb88e33a14b5c34a3">~ThreadlocalSharedPtr</a>() {</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; DecRef(block_);</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; }</div>
<div class="line"><a name="l00170"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#acc5ff965498e28003342e4b877405f35"> 170</a></span>&#160; <span class="keyword">inline</span> <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html">ThreadlocalSharedPtr&lt;T&gt;</a>&amp; <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#acc5ff965498e28003342e4b877405f35">operator=</a>(<a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html">ThreadlocalSharedPtr&lt;T&gt;</a>&amp;&amp; other) {</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; DecRef(block_);</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; block_ = other.block_;</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; other.block_ = <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; }</div>
<div class="line"><a name="l00181"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#a2171de98438e57a3a0bd1f49670df4ba"> 181</a></span>&#160; <span class="keyword">inline</span> <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html">ThreadlocalSharedPtr&lt;T&gt;</a> &amp;<a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#a2171de98438e57a3a0bd1f49670df4ba">operator=</a>(<span class="keyword">const</span> <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html">ThreadlocalSharedPtr&lt;T&gt;</a>&amp; other) {</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; DecRef(block_);</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; block_ = other.block_;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; IncRef(block_);</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; }</div>
<div class="line"><a name="l00188"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#a1ffe575130056bb660638cc2b1639407"> 188</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#a1ffe575130056bb660638cc2b1639407">operator==</a>(std::nullptr_t other)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; <span class="keywordflow">return</span> block_ == <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; }</div>
<div class="line"><a name="l00194"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#a45de2433ee99061995facb9df5344bbe"> 194</a></span>&#160; <span class="keyword">inline</span> T* <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#a45de2433ee99061995facb9df5344bbe">get</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; <span class="keywordflow">if</span> (block_ == <span class="keyword">nullptr</span>) <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="keywordflow">return</span> <span class="keyword">reinterpret_cast&lt;</span>T*<span class="keyword">&gt;</span>(&amp;(block_-&gt;data));</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; }</div>
<div class="line"><a name="l00201"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#a36a14e7f0177bc7bc98cecd2cbd3490f"> 201</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#a36a14e7f0177bc7bc98cecd2cbd3490f">reset</a>() {</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; DecRef(block_);</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; block_ = <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; }</div>
<div class="line"><a name="l00206"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#aafbbdda0d78a6bedf83e90155cef4d80"> 206</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#aafbbdda0d78a6bedf83e90155cef4d80">unique</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; <span class="keywordflow">if</span> (block_ == <span class="keyword">nullptr</span>) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; <span class="keywordflow">return</span> block_-&gt;use_count_ == 1;</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; }</div>
<div class="line"><a name="l00211"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#a2f9de578e88848b1130815466dac36dd"> 211</a></span>&#160; <span class="keyword">inline</span> T* <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#a2f9de578e88848b1130815466dac36dd">operator*</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="keywordflow">return</span> <span class="keyword">reinterpret_cast&lt;</span>T*<span class="keyword">&gt;</span>(&amp;(block_-&gt;data));</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; }</div>
<div class="line"><a name="l00215"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#a2162981431d66324a5f8bf6beef18803"> 215</a></span>&#160; <span class="keyword">inline</span> T* <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#a2162981431d66324a5f8bf6beef18803">operator-&gt;</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; <span class="keywordflow">return</span> <span class="keyword">reinterpret_cast&lt;</span>T*<span class="keyword">&gt;</span>(&amp;(block_-&gt;data));</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; }</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a name="l00225"></a><span class="lineno"><a class="line" href="structdmlc_1_1ThreadlocalSharedPtr.html#ac32415b8af936299162aaabafe0fbe10"> 225</a></span>&#160; <span class="keyword">inline</span> <span class="keyword">static</span> <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html">ThreadlocalSharedPtr&lt;T&gt;</a> <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html#ac32415b8af936299162aaabafe0fbe10">Create</a>(Args&amp;&amp;... args) {</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; <a class="code" href="classdmlc_1_1ThreadlocalAllocator.html">ThreadlocalAllocator&lt;RefBlock&gt;</a> arena;</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; <a class="code" href="structdmlc_1_1ThreadlocalSharedPtr.html">ThreadlocalSharedPtr&lt;T&gt;</a> p;</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160; p.block_ = arena.<a class="code" href="classdmlc_1_1ThreadlocalAllocator.html#ae0d77e0a063397c0f769f04947e662bd">allocate</a>(1);</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; p.block_-&gt;use_count_ = 1;</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; <span class="keyword">new</span> (&amp;(p.block_-&gt;data)) T(std::forward&lt;Args&gt;(args)...);</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; <span class="keywordflow">return</span> p;</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; }</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; </div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; <span class="comment">// internal reference block</span></div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; <span class="keyword">struct </span>RefBlock {</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; <span class="keyword">typename</span> std::aligned_storage&lt;<span class="keyword">sizeof</span>(T), <span class="keyword">alignof</span>(T)&gt;::type data;</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="keywordtype">unsigned</span> use_count_;</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; };</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; <span class="comment">// decrease ref counter</span></div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">void</span> DecRef(RefBlock* block) {</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; <span class="keywordflow">if</span> (block != <span class="keyword">nullptr</span>) {</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; <span class="keywordflow">if</span> (--block-&gt;use_count_ == 0) {</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; ThreadlocalAllocator&lt;RefBlock&gt; arena;</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; T* dptr = <span class="keyword">reinterpret_cast&lt;</span>T*<span class="keyword">&gt;</span>(&amp;(block-&gt;data));</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; dptr-&gt;~T();</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; arena.deallocate(block, 1);</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; }</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; }</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; }</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; <span class="comment">// increase ref counter</span></div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">void</span> IncRef(RefBlock* block) {</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; <span class="keywordflow">if</span> (block != <span class="keyword">nullptr</span>) {</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; ++block-&gt;use_count_;</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; }</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; }</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; <span class="comment">// internal block</span></div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; RefBlock *block_;</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160;};</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; </div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160;} <span class="comment">// namespace dmlc</span></div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; </div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160;<span class="preprocessor">#endif // DMLC_MEMORY_H_</span></div>
</div><!-- fragment --></div><!-- contents -->
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_ae8cc365543b3aa0811129b3eeba69a60"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#ae8cc365543b3aa0811129b3eeba69a60">dmlc::ThreadlocalSharedPtr::ThreadlocalSharedPtr</a></div><div class="ttdeci">ThreadlocalSharedPtr(const ThreadlocalSharedPtr&lt; T &gt; &amp;other)</div><div class="ttdoc">copy constructor</div><div class="ttdef"><b>Definition:</b> memory.h:147</div></div>
<div class="ttc" id="aclassdmlc_1_1ThreadlocalAllocator_html"><div class="ttname"><a href="classdmlc_1_1ThreadlocalAllocator.html">dmlc::ThreadlocalAllocator</a></div><div class="ttdoc">A thread local allocator that get memory from a threadlocal memory pool. This is suitable to allocate...</div><div class="ttdef"><b>Definition:</b> memory.h:87</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_ab6746ec2195a54211481c89f88f29985"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#ab6746ec2195a54211481c89f88f29985">dmlc::ThreadlocalSharedPtr::ThreadlocalSharedPtr</a></div><div class="ttdeci">ThreadlocalSharedPtr(ThreadlocalSharedPtr&lt; T &gt; &amp;&amp;other)</div><div class="ttdoc">move constructor</div><div class="ttdef"><b>Definition:</b> memory.h:155</div></div>
<div class="ttc" id="anamespacedmlc_html"><div class="ttname"><a href="namespacedmlc.html">dmlc</a></div><div class="ttdoc">namespace for dmlc</div><div class="ttdef"><b>Definition:</b> array_view.h:12</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html">dmlc::ThreadlocalSharedPtr</a></div><div class="ttdoc">a shared pointer like type that allocate object from a threadlocal object pool. This object is not th...</div><div class="ttdef"><b>Definition:</b> memory.h:134</div></div>
<div class="ttc" id="aclassdmlc_1_1ThreadLocalStore_html"><div class="ttname"><a href="classdmlc_1_1ThreadLocalStore.html">dmlc::ThreadLocalStore</a></div><div class="ttdoc">A threadlocal store to store threadlocal variables. Will return a thread local singleton of type T.</div><div class="ttdef"><b>Definition:</b> thread_local.h:35</div></div>
<div class="ttc" id="aclassdmlc_1_1MemoryPool_html_af79108ad8be488fa46dffec19a43cc92"><div class="ttname"><a href="classdmlc_1_1MemoryPool.html#af79108ad8be488fa46dffec19a43cc92">dmlc::MemoryPool::deallocate</a></div><div class="ttdeci">void deallocate(void *p)</div><div class="ttdoc">deallocate a piece of memory</div><div class="ttdef"><b>Definition:</b> memory.h:53</div></div>
<div class="ttc" id="aclassdmlc_1_1MemoryPool_html_a891d237cfb487524ee4934d9c9c91a48"><div class="ttname"><a href="classdmlc_1_1MemoryPool.html#a891d237cfb487524ee4934d9c9c91a48">dmlc::MemoryPool::allocate</a></div><div class="ttdeci">void * allocate()</div><div class="ttdoc">allocate a new memory of size</div><div class="ttdef"><b>Definition:</b> memory.h:33</div></div>
<div class="ttc" id="a3rdparty_2dmlc-core_2include_2dmlc_2base_8h_html"><div class="ttname"><a href="3rdparty_2dmlc-core_2include_2dmlc_2base_8h.html">base.h</a></div><div class="ttdoc">defines configuration macros</div></div>
<div class="ttc" id="aclassdmlc_1_1MemoryPool_html_a740c11194c904ee61a3f78e70dda3ae8"><div class="ttname"><a href="classdmlc_1_1MemoryPool.html#a740c11194c904ee61a3f78e70dda3ae8">dmlc::MemoryPool::MemoryPool</a></div><div class="ttdeci">MemoryPool()</div><div class="ttdoc">constructor</div><div class="ttdef"><b>Definition:</b> memory.h:27</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_ac32415b8af936299162aaabafe0fbe10"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#ac32415b8af936299162aaabafe0fbe10">dmlc::ThreadlocalSharedPtr::Create</a></div><div class="ttdeci">static ThreadlocalSharedPtr&lt; T &gt; Create(Args &amp;&amp;... args)</div><div class="ttdoc">create a new space from threadlocal storage and return it.</div><div class="ttdef"><b>Definition:</b> memory.h:225</div></div>
<div class="ttc" id="aclassdmlc_1_1ThreadlocalAllocator_html_adc4594319463c55342eccaf3e49b0109"><div class="ttname"><a href="classdmlc_1_1ThreadlocalAllocator.html#adc4594319463c55342eccaf3e49b0109">dmlc::ThreadlocalAllocator::ThreadlocalAllocator</a></div><div class="ttdeci">ThreadlocalAllocator(const ThreadlocalAllocator&lt; U &gt; &amp;other)</div><div class="ttdoc">constructor from another allocator</div><div class="ttdef"><b>Definition:</b> memory.h:103</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_a2f9de578e88848b1130815466dac36dd"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#a2f9de578e88848b1130815466dac36dd">dmlc::ThreadlocalSharedPtr::operator*</a></div><div class="ttdeci">T * operator*() const</div><div class="ttdef"><b>Definition:</b> memory.h:211</div></div>
<div class="ttc" id="aclassdmlc_1_1ThreadlocalAllocator_html_ae0d77e0a063397c0f769f04947e662bd"><div class="ttname"><a href="classdmlc_1_1ThreadlocalAllocator.html#ae0d77e0a063397c0f769f04947e662bd">dmlc::ThreadlocalAllocator::allocate</a></div><div class="ttdeci">T * allocate(size_t n)</div><div class="ttdoc">allocate memory</div><div class="ttdef"><b>Definition:</b> memory.h:109</div></div>
<div class="ttc" id="aclassdmlc_1_1ThreadlocalAllocator_html_a8532d289334d9ba00bb12aa3177ccef2"><div class="ttname"><a href="classdmlc_1_1ThreadlocalAllocator.html#a8532d289334d9ba00bb12aa3177ccef2">dmlc::ThreadlocalAllocator::const_ptr</a></div><div class="ttdeci">const typedef T * const_ptr</div><div class="ttdoc">const pointer type</div><div class="ttdef"><b>Definition:</b> memory.h:92</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_a45de2433ee99061995facb9df5344bbe"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#a45de2433ee99061995facb9df5344bbe">dmlc::ThreadlocalSharedPtr::get</a></div><div class="ttdeci">T * get() const</div><div class="ttdef"><b>Definition:</b> memory.h:194</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_adc6034034fd64b3cdb4080840936748c"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#adc6034034fd64b3cdb4080840936748c">dmlc::ThreadlocalSharedPtr::ThreadlocalSharedPtr</a></div><div class="ttdeci">ThreadlocalSharedPtr(std::nullptr_t other)</div><div class="ttdoc">constructor from nullptr</div><div class="ttdef"><b>Definition:</b> memory.h:142</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_a36a14e7f0177bc7bc98cecd2cbd3490f"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#a36a14e7f0177bc7bc98cecd2cbd3490f">dmlc::ThreadlocalSharedPtr::reset</a></div><div class="ttdeci">void reset()</div><div class="ttdoc">reset the pointer to nullptr.</div><div class="ttdef"><b>Definition:</b> memory.h:201</div></div>
<div class="ttc" id="aclassdmlc_1_1ThreadlocalAllocator_html_a647ff459997d57e201cf295a8afea966"><div class="ttname"><a href="classdmlc_1_1ThreadlocalAllocator.html#a647ff459997d57e201cf295a8afea966">dmlc::ThreadlocalAllocator::ThreadlocalAllocator</a></div><div class="ttdeci">ThreadlocalAllocator()</div><div class="ttdoc">default constructor</div><div class="ttdef"><b>Definition:</b> memory.h:96</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_aafbbdda0d78a6bedf83e90155cef4d80"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#aafbbdda0d78a6bedf83e90155cef4d80">dmlc::ThreadlocalSharedPtr::unique</a></div><div class="ttdeci">bool unique() const</div><div class="ttdef"><b>Definition:</b> memory.h:206</div></div>
<div class="ttc" id="aclassdmlc_1_1ThreadlocalAllocator_html_aa9509829a2b96a97eca105cfc918f8ee"><div class="ttname"><a href="classdmlc_1_1ThreadlocalAllocator.html#aa9509829a2b96a97eca105cfc918f8ee">dmlc::ThreadlocalAllocator::pointer</a></div><div class="ttdeci">T * pointer</div><div class="ttdoc">pointer type</div><div class="ttdef"><b>Definition:</b> memory.h:90</div></div>
<div class="ttc" id="aclassdmlc_1_1MemoryPool_html"><div class="ttname"><a href="classdmlc_1_1MemoryPool.html">dmlc::MemoryPool</a></div><div class="ttdoc">A memory pool that allocate memory of fixed size and alignment.</div><div class="ttdef"><b>Definition:</b> memory.h:24</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_a1ffe575130056bb660638cc2b1639407"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#a1ffe575130056bb660638cc2b1639407">dmlc::ThreadlocalSharedPtr::operator==</a></div><div class="ttdeci">bool operator==(std::nullptr_t other) const</div><div class="ttdoc">check if nullptr</div><div class="ttdef"><b>Definition:</b> memory.h:188</div></div>
<div class="ttc" id="aclassdmlc_1_1ThreadlocalAllocator_html_a15e68f08f76d0dca8fd10bd09ace570c"><div class="ttname"><a href="classdmlc_1_1ThreadlocalAllocator.html#a15e68f08f76d0dca8fd10bd09ace570c">dmlc::ThreadlocalAllocator::value_type</a></div><div class="ttdeci">T value_type</div><div class="ttdoc">value type</div><div class="ttdef"><b>Definition:</b> memory.h:94</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_ae8245ab0d440647cb88e33a14b5c34a3"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#ae8245ab0d440647cb88e33a14b5c34a3">dmlc::ThreadlocalSharedPtr::~ThreadlocalSharedPtr</a></div><div class="ttdeci">~ThreadlocalSharedPtr()</div><div class="ttdoc">destructor</div><div class="ttdef"><b>Definition:</b> memory.h:162</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_acc5ff965498e28003342e4b877405f35"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#acc5ff965498e28003342e4b877405f35">dmlc::ThreadlocalSharedPtr::operator=</a></div><div class="ttdeci">ThreadlocalSharedPtr&lt; T &gt; &amp; operator=(ThreadlocalSharedPtr&lt; T &gt; &amp;&amp;other)</div><div class="ttdoc">move assignment</div><div class="ttdef"><b>Definition:</b> memory.h:170</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_a2171de98438e57a3a0bd1f49670df4ba"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#a2171de98438e57a3a0bd1f49670df4ba">dmlc::ThreadlocalSharedPtr::operator=</a></div><div class="ttdeci">ThreadlocalSharedPtr&lt; T &gt; &amp; operator=(const ThreadlocalSharedPtr&lt; T &gt; &amp;other)</div><div class="ttdoc">copy assignment</div><div class="ttdef"><b>Definition:</b> memory.h:181</div></div>
<div class="ttc" id="athread__local_8h_html"><div class="ttname"><a href="thread__local_8h.html">thread_local.h</a></div><div class="ttdoc">Portable thread local storage.</div></div>
<div class="ttc" id="aclassdmlc_1_1ThreadlocalAllocator_html_aa13d2a783f533d59a3d00c84c547a647"><div class="ttname"><a href="classdmlc_1_1ThreadlocalAllocator.html#aa13d2a783f533d59a3d00c84c547a647">dmlc::ThreadlocalAllocator::deallocate</a></div><div class="ttdeci">void deallocate(T *p, size_t n)</div><div class="ttdoc">deallocate memory</div><div class="ttdef"><b>Definition:</b> memory.h:119</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_ada84fe8ca4b84369f19cd0348598498d"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#ada84fe8ca4b84369f19cd0348598498d">dmlc::ThreadlocalSharedPtr::ThreadlocalSharedPtr</a></div><div class="ttdeci">ThreadlocalSharedPtr()</div><div class="ttdoc">default constructor</div><div class="ttdef"><b>Definition:</b> memory.h:137</div></div>
<div class="ttc" id="astructdmlc_1_1ThreadlocalSharedPtr_html_a2162981431d66324a5f8bf6beef18803"><div class="ttname"><a href="structdmlc_1_1ThreadlocalSharedPtr.html#a2162981431d66324a5f8bf6beef18803">dmlc::ThreadlocalSharedPtr::operator-&gt;</a></div><div class="ttdeci">T * operator-&gt;() const</div><div class="ttdef"><b>Definition:</b> memory.h:215</div></div>
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