| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
| |
| <html xmlns="http://www.w3.org/1999/xhtml"> |
| <head> |
| <meta content="text/xhtml;charset=utf-8" http-equiv="Content-Type"/> |
| <meta content="IE=9" http-equiv="X-UA-Compatible"/> |
| <meta content="Doxygen 1.8.11" name="generator"/> |
| <title>mxnet: src/common/object_pool.h Source File</title> |
| <link href="tabs.css" rel="stylesheet" type="text/css"/> |
| <script src="jquery.js" type="text/javascript"></script> |
| <script src="dynsections.js" type="text/javascript"></script> |
| <link href="search/search.css" rel="stylesheet" type="text/css"/> |
| <script src="search/searchdata.js" type="text/javascript"></script> |
| <script src="search/search.js" type="text/javascript"></script> |
| <script type="text/javascript"> |
| $(document).ready(function() { init_search(); }); |
| </script> |
| <link href="doxygen.css" rel="stylesheet" type="text/css"/> |
| </head> |
| <body> |
| <div id="top"><!-- do not remove this div, it is closed by doxygen! --> |
| <div id="titlearea"> |
| <table cellpadding="0" cellspacing="0"> |
| <tbody> |
| <tr style="height: 56px;"> |
| <td id="projectalign" style="padding-left: 0.5em;"> |
| <div id="projectname">mxnet |
| </div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <!-- end header part --> |
| <!-- Generated by Doxygen 1.8.11 --> |
| <script type="text/javascript"> |
| var searchBox = new SearchBox("searchBox", "search",false,'Search'); |
| </script> |
| <div class="tabs" id="navrow1"> |
| <ul class="tablist"> |
| <li><a href="index.html"><span>Main Page</span></a></li> |
| <li><a href="namespaces.html"><span>Namespaces</span></a></li> |
| <li><a href="annotated.html"><span>Classes</span></a></li> |
| <li class="current"><a href="files.html"><span>Files</span></a></li> |
| <li> |
| <div class="MSearchBoxInactive" id="MSearchBox"> |
| <span class="left"> |
| <img alt="" id="MSearchSelect" onmouseout="return searchBox.OnSearchSelectHide()" onmouseover="return searchBox.OnSearchSelectShow()" src="search/mag_sel.png"/> |
| <input accesskey="S" id="MSearchField" onblur="searchBox.OnSearchFieldFocus(false)" onfocus="searchBox.OnSearchFieldFocus(true)" onkeyup="searchBox.OnSearchFieldChange(event)" type="text" value="Search"/> |
| </span><span class="right"> |
| <a href="javascript:searchBox.CloseResultsWindow()" id="MSearchClose"><img alt="" border="0" id="MSearchCloseImg" src="search/close.png"/></a> |
| </span> |
| </div> |
| </li> |
| </ul> |
| </div> |
| <div class="tabs2" id="navrow2"> |
| <ul class="tablist"> |
| <li><a href="files.html"><span>File List</span></a></li> |
| <li><a href="globals.html"><span>File Members</span></a></li> |
| </ul> |
| </div> |
| <!-- window showing the filter options --> |
| <div id="MSearchSelectWindow" onkeydown="return searchBox.OnSearchSelectKey(event)" onmouseout="return searchBox.OnSearchSelectHide()" onmouseover="return searchBox.OnSearchSelectShow()"> |
| </div> |
| <!-- iframe showing the search results (closed by default) --> |
| <div id="MSearchResultsWindow"> |
| <iframe frameborder="0" id="MSearchResults" name="MSearchResults" src="javascript:void(0)"> |
| </iframe> |
| </div> |
| <div class="navpath" id="nav-path"> |
| <ul> |
| <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_fdedb0aba14d44ce9d99bc100e026e6a.html">common</a></li> </ul> |
| </div> |
| </div><!-- top --> |
| <div class="header"> |
| <div class="headertitle"> |
| <div class="title">object_pool.h</div> </div> |
| </div><!--header--> |
| <div class="contents"> |
| <a href="object__pool_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> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * distributed with this work for additional information</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * "License"); you may not use this file except in compliance</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * with the License. You may obtain a copy of the License at</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> *</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * software distributed under the License is distributed on an</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * KIND, either express or implied. See the License for the</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * specific language governing permissions and limitations</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * under the License.</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> */</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#ifndef MXNET_COMMON_OBJECT_POOL_H_</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#define MXNET_COMMON_OBJECT_POOL_H_</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <dmlc/logging.h></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <cstdlib></span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <mutex></span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <utility></span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <vector></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">namespace </span><a class="code" href="namespacemxnet.html">mxnet</a> {</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">namespace </span>common {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="classmxnet_1_1common_1_1ObjectPool.html"> 36</a></span> <span class="keyword">class </span><a class="code" href="classmxnet_1_1common_1_1ObjectPool.html">ObjectPool</a> {</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#aa5ff3f223210e5f3d0881c272462aedb">~ObjectPool</a>();</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">template</span> <<span class="keyword">typename</span>... Args></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> T* <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#a5d711031f61dbd06d8c6975fd49e5632">New</a>(Args&&... args);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#a7dcdcbe9b6764cedc28a1de2fbc8dd6f">Delete</a>(T* ptr);</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">static</span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html">ObjectPool</a>* <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#a82b4d0c3577560a4f6f62f482b125471">Get</a>();</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">static</span> std::shared_ptr<ObjectPool> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#ac6e5e05a710c3f094efb4ba13d36ab89">_GetSharedRef</a>();</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="keyword">struct </span>LinkedList {</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#if defined(_MSC_VER)</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> T t;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> LinkedList* next{<span class="keyword">nullptr</span>};</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keyword">union </span>{</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> T t;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> LinkedList* next{<span class="keyword">nullptr</span>};</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> };</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> };</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> constexpr <span class="keyword">static</span> std::size_t kPageSize = 1 << 12;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> std::mutex m_;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> LinkedList* head_{<span class="keyword">nullptr</span>};</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> std::vector<void*> allocated_;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html">ObjectPool</a>();</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="keywordtype">void</span> AllocateChunk();</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> DISALLOW_COPY_AND_ASSIGN(<a class="code" href="classmxnet_1_1common_1_1ObjectPool.html">ObjectPool</a>);</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> }; <span class="comment">// class ObjectPool</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="structmxnet_1_1common_1_1ObjectPoolAllocatable.html"> 116</a></span> <span class="keyword">struct </span><a class="code" href="structmxnet_1_1common_1_1ObjectPoolAllocatable.html">ObjectPoolAllocatable</a> {</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="keyword">template</span> <<span class="keyword">typename</span>... Args></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="keyword">static</span> T* <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#a5d711031f61dbd06d8c6975fd49e5632">New</a>(Args&&... args);</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#a7dcdcbe9b6764cedc28a1de2fbc8dd6f">Delete</a>(T* ptr);</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> }; <span class="comment">// struct ObjectPoolAllocatable</span></div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00133"></a><span class="lineno"><a class="line" href="classmxnet_1_1common_1_1ObjectPool.html#aa5ff3f223210e5f3d0881c272462aedb"> 133</a></span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#aa5ff3f223210e5f3d0881c272462aedb">ObjectPool<T>::~ObjectPool</a>() {</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment">// TODO(hotpxl): mind destruction order</span></div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="comment">// for (auto i : allocated_) {</span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment">// free(i);</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment">// }</span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> }</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="keyword">template</span> <<span class="keyword">typename</span>... Args></div><div class="line"><a name="l00142"></a><span class="lineno"><a class="line" href="classmxnet_1_1common_1_1ObjectPool.html#a5d711031f61dbd06d8c6975fd49e5632"> 142</a></span> T* <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#a5d711031f61dbd06d8c6975fd49e5632">ObjectPool<T>::New</a>(Args&&... args) {</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> LinkedList* ret;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> {</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> std::lock_guard<std::mutex> lock{m_};</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="keywordflow">if</span> (head_->next == <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> AllocateChunk();</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> }</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> ret = head_;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> head_ = head_->next;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> }</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">return</span> <span class="keyword">new</span> (<span class="keyword">static_cast<</span><span class="keywordtype">void</span>*<span class="keyword">></span>(ret)) T(std::forward<Args>(args)...);</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> }</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00156"></a><span class="lineno"><a class="line" href="classmxnet_1_1common_1_1ObjectPool.html#a7dcdcbe9b6764cedc28a1de2fbc8dd6f"> 156</a></span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#a7dcdcbe9b6764cedc28a1de2fbc8dd6f">ObjectPool<T>::Delete</a>(T* ptr) {</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> ptr->~T();</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="keyword">auto</span> linked_list_ptr = <span class="keyword">reinterpret_cast<</span>LinkedList*<span class="keyword">></span>(ptr);</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> {</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> std::lock_guard<std::mutex> lock{m_};</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> linked_list_ptr->next = head_;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> head_ = linked_list_ptr;</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> }</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> }</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00167"></a><span class="lineno"><a class="line" href="classmxnet_1_1common_1_1ObjectPool.html#a82b4d0c3577560a4f6f62f482b125471"> 167</a></span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html">ObjectPool<T></a>* <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#a82b4d0c3577560a4f6f62f482b125471">ObjectPool<T>::Get</a>() {</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="keywordflow">return</span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#ac6e5e05a710c3f094efb4ba13d36ab89">_GetSharedRef</a>().get();</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> }</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00172"></a><span class="lineno"><a class="line" href="classmxnet_1_1common_1_1ObjectPool.html#ac6e5e05a710c3f094efb4ba13d36ab89"> 172</a></span> std::shared_ptr<ObjectPool<T> > <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#ac6e5e05a710c3f094efb4ba13d36ab89">ObjectPool<T>::_GetSharedRef</a>() {</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="keyword">static</span> std::shared_ptr<ObjectPool<T> > inst_ptr(<span class="keyword">new</span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html">ObjectPool<T></a>());</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="keywordflow">return</span> inst_ptr;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> }</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html">ObjectPool<T>::ObjectPool</a>() {</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> AllocateChunk();</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> }</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html">ObjectPool<T>::AllocateChunk</a>() {</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> static_assert(<span class="keyword">sizeof</span>(LinkedList) <= kPageSize, <span class="stringliteral">"Object too big."</span>);</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> static_assert(<span class="keyword">sizeof</span>(LinkedList) % <span class="keyword">alignof</span>(LinkedList) == 0, <span class="stringliteral">"ObjectPooll Invariant"</span>);</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> static_assert(<span class="keyword">alignof</span>(LinkedList) % <span class="keyword">alignof</span>(T) == 0, <span class="stringliteral">"ObjectPooll Invariant"</span>);</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> static_assert(kPageSize % <span class="keyword">alignof</span>(LinkedList) == 0, <span class="stringliteral">"ObjectPooll Invariant"</span>);</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="keywordtype">void</span>* new_chunk_ptr;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="preprocessor">#ifdef _MSC_VER</span></div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> new_chunk_ptr = _aligned_malloc(kPageSize, kPageSize);</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> CHECK(new_chunk_ptr != NULL) << <span class="stringliteral">"Allocation failed"</span>;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="keywordtype">int</span> ret = posix_memalign(&new_chunk_ptr, kPageSize, kPageSize);</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> CHECK_EQ(ret, 0) << <span class="stringliteral">"Allocation failed"</span>;</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> allocated_.emplace_back(new_chunk_ptr);</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="keyword">auto</span> new_chunk = <span class="keyword">static_cast<</span>LinkedList*<span class="keyword">></span>(new_chunk_ptr);</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="keyword">auto</span> size = kPageSize / <span class="keyword">sizeof</span>(LinkedList);</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="keywordflow">for</span> (std::size_t i = 0; i < size - 1; ++i) {</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> new_chunk[i].next = &new_chunk[i + 1];</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> }</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> new_chunk[size - 1].next = head_;</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> head_ = new_chunk;</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> }</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="keyword">template</span> <<span class="keyword">typename</span>... Args></div><div class="line"><a name="l00208"></a><span class="lineno"><a class="line" href="structmxnet_1_1common_1_1ObjectPoolAllocatable.html#aaf92ecb0cb6542b5c3f70ec31a31db4e"> 208</a></span> T* <a class="code" href="structmxnet_1_1common_1_1ObjectPoolAllocatable.html#aaf92ecb0cb6542b5c3f70ec31a31db4e">ObjectPoolAllocatable<T>::New</a>(Args&&... args) {</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="keywordflow">return</span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#a82b4d0c3577560a4f6f62f482b125471">ObjectPool<T>::Get</a>()-><a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#a5d711031f61dbd06d8c6975fd49e5632">New</a>(std::forward<Args>(args)...);</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> }</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00213"></a><span class="lineno"><a class="line" href="structmxnet_1_1common_1_1ObjectPoolAllocatable.html#a68ed487cb6de6194a4798fdbbfd04597"> 213</a></span> <span class="keywordtype">void</span> <a class="code" href="structmxnet_1_1common_1_1ObjectPoolAllocatable.html#a68ed487cb6de6194a4798fdbbfd04597">ObjectPoolAllocatable<T>::Delete</a>(T* ptr) {</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#a82b4d0c3577560a4f6f62f482b125471">ObjectPool<T>::Get</a>()-><a class="code" href="classmxnet_1_1common_1_1ObjectPool.html#a7dcdcbe9b6764cedc28a1de2fbc8dd6f">Delete</a>(ptr);</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> }</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> } <span class="comment">// namespace common</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> } <span class="comment">// namespace mxnet</span></div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="preprocessor">#endif // MXNET_COMMON_OBJECT_POOL_H_</span></div><div class="ttc" id="structmxnet_1_1common_1_1ObjectPoolAllocatable_html_a68ed487cb6de6194a4798fdbbfd04597"><div class="ttname"><a href="structmxnet_1_1common_1_1ObjectPoolAllocatable.html#a68ed487cb6de6194a4798fdbbfd04597">mxnet::common::ObjectPoolAllocatable::Delete</a></div><div class="ttdeci">static void Delete(T *ptr)</div><div class="ttdoc">Delete an existing object. </div><div class="ttdef"><b>Definition:</b> object_pool.h:213</div></div> |
| <div class="ttc" id="structmxnet_1_1common_1_1ObjectPoolAllocatable_html_aaf92ecb0cb6542b5c3f70ec31a31db4e"><div class="ttname"><a href="structmxnet_1_1common_1_1ObjectPoolAllocatable.html#aaf92ecb0cb6542b5c3f70ec31a31db4e">mxnet::common::ObjectPoolAllocatable::New</a></div><div class="ttdeci">static T * New(Args &&...args)</div><div class="ttdoc">Create new object. </div><div class="ttdef"><b>Definition:</b> object_pool.h:208</div></div> |
| <div class="ttc" id="namespacemxnet_html"><div class="ttname"><a href="namespacemxnet.html">mxnet</a></div><div class="ttdoc">namespace of mxnet </div><div class="ttdef"><b>Definition:</b> base.h:126</div></div> |
| <div class="ttc" id="classmxnet_1_1common_1_1ObjectPool_html_a5d711031f61dbd06d8c6975fd49e5632"><div class="ttname"><a href="classmxnet_1_1common_1_1ObjectPool.html#a5d711031f61dbd06d8c6975fd49e5632">mxnet::common::ObjectPool::New</a></div><div class="ttdeci">T * New(Args &&...args)</div><div class="ttdoc">Create new object. </div><div class="ttdef"><b>Definition:</b> object_pool.h:142</div></div> |
| <div class="ttc" id="classmxnet_1_1common_1_1ObjectPool_html_a82b4d0c3577560a4f6f62f482b125471"><div class="ttname"><a href="classmxnet_1_1common_1_1ObjectPool.html#a82b4d0c3577560a4f6f62f482b125471">mxnet::common::ObjectPool::Get</a></div><div class="ttdeci">static ObjectPool * Get()</div><div class="ttdoc">Get singleton instance of pool. </div><div class="ttdef"><b>Definition:</b> object_pool.h:167</div></div> |
| <div class="ttc" id="classmxnet_1_1common_1_1ObjectPool_html_ac6e5e05a710c3f094efb4ba13d36ab89"><div class="ttname"><a href="classmxnet_1_1common_1_1ObjectPool.html#ac6e5e05a710c3f094efb4ba13d36ab89">mxnet::common::ObjectPool::_GetSharedRef</a></div><div class="ttdeci">static std::shared_ptr< ObjectPool > _GetSharedRef()</div><div class="ttdoc">Get a shared ptr of the singleton instance of pool. </div><div class="ttdef"><b>Definition:</b> object_pool.h:172</div></div> |
| <div class="ttc" id="classmxnet_1_1common_1_1ObjectPool_html_a7dcdcbe9b6764cedc28a1de2fbc8dd6f"><div class="ttname"><a href="classmxnet_1_1common_1_1ObjectPool.html#a7dcdcbe9b6764cedc28a1de2fbc8dd6f">mxnet::common::ObjectPool::Delete</a></div><div class="ttdeci">void Delete(T *ptr)</div><div class="ttdoc">Delete an existing object. </div><div class="ttdef"><b>Definition:</b> object_pool.h:156</div></div> |
| <div class="ttc" id="structmxnet_1_1common_1_1ObjectPoolAllocatable_html"><div class="ttname"><a href="structmxnet_1_1common_1_1ObjectPoolAllocatable.html">mxnet::common::ObjectPoolAllocatable</a></div><div class="ttdoc">Helper trait class for easy allocation and deallocation. </div><div class="ttdef"><b>Definition:</b> object_pool.h:116</div></div> |
| <div class="ttc" id="classmxnet_1_1common_1_1ObjectPool_html_aa5ff3f223210e5f3d0881c272462aedb"><div class="ttname"><a href="classmxnet_1_1common_1_1ObjectPool.html#aa5ff3f223210e5f3d0881c272462aedb">mxnet::common::ObjectPool::~ObjectPool</a></div><div class="ttdeci">~ObjectPool()</div><div class="ttdoc">Destructor. </div><div class="ttdef"><b>Definition:</b> object_pool.h:133</div></div> |
| <div class="ttc" id="classmxnet_1_1common_1_1ObjectPool_html"><div class="ttname"><a href="classmxnet_1_1common_1_1ObjectPool.html">mxnet::common::ObjectPool</a></div><div class="ttdoc">Object pool for fast allocation and deallocation. </div><div class="ttdef"><b>Definition:</b> object_pool.h:36</div></div> |
| </div><!-- fragment --></div><!-- contents --> |
| <!-- start footer part --> |
| <hr class="footer"/><address class="footer"><small> |
| Generated on Thu Sep 19 2019 13:08:39 for mxnet by <a href="http://www.doxygen.org/index.html"> |
| <img alt="doxygen" class="footer" src="doxygen.png"/> |
| </a> 1.8.11 |
| </small></address> |
| </body> |
| </html> |