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<a href="lazy__alloc__array_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;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<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>&#160;<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>&#160;<span class="comment"> * distributed with this work for additional information</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<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>&#160;<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>&#160;<span class="comment"> * &quot;License&quot;); you may not use this file except in compliance</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<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>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<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>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<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>&#160;<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>&#160;<span class="comment"> * &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<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>&#160;<span class="comment"> * specific language governing permissions and limitations</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment"> * under the License.</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#ifndef MXNET_COMMON_LAZY_ALLOC_ARRAY_H_</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#define MXNET_COMMON_LAZY_ALLOC_ARRAY_H_</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#include &lt;dmlc/logging.h&gt;</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="preprocessor">#include &lt;memory&gt;</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="preprocessor">#include &lt;mutex&gt;</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="preprocessor">#include &lt;array&gt;</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="preprocessor">#include &lt;atomic&gt;</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacemxnet.html">mxnet</a> {</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="keyword">namespace </span>common {</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> TElem&gt;</div><div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="classmxnet_1_1common_1_1LazyAllocArray.html"> 39</a></span>&#160;<span class="keyword">class </span><a class="code" href="classmxnet_1_1common_1_1LazyAllocArray.html">LazyAllocArray</a> {</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <a class="code" href="classmxnet_1_1common_1_1LazyAllocArray.html#a1dd703a9eabfe691793a8398706bcc09">LazyAllocArray</a>();</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> FCreate&gt;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keyword">inline</span> std::shared_ptr&lt;TElem&gt; <a class="code" href="classmxnet_1_1common_1_1LazyAllocArray.html#ac4528ab581eda5b0aba35faa3687c201">Get</a>(<span class="keywordtype">int</span> index, FCreate creator);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> FVisit&gt;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1common_1_1LazyAllocArray.html#a43a89c8e7b4e1a09f346694073a2d998">ForEach</a>(FVisit fvisit);</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1common_1_1LazyAllocArray.html#a3af1ab75feb0ba07db5af7e6ef5717b1">Clear</a>();</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="keyword">template</span>&lt;<span class="keyword">typename</span> SyncObject&gt;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <span class="keyword">class </span>unique_unlock {</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="keyword">explicit</span> unique_unlock(std::unique_lock&lt;SyncObject&gt; *lock)</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; : lock_(lock) {</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <span class="keywordflow">if</span> (lock_) {</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; lock_-&gt;unlock();</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; }</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; }</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; ~unique_unlock() {</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keywordflow">if</span> (lock_) {</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; lock_-&gt;lock();</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; }</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; }</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; std::unique_lock&lt;SyncObject&gt; *lock_;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; };</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keyword">static</span> constexpr std::size_t kInitSize = 16;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; std::mutex create_mutex_;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; std::array&lt;std::shared_ptr&lt;TElem&gt;, kInitSize&gt; head_;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; std::vector&lt;std::shared_ptr&lt;TElem&gt; &gt; more_;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; std::atomic&lt;bool&gt; is_clearing_;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;};</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> TElem&gt;</div><div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="classmxnet_1_1common_1_1LazyAllocArray.html#a1dd703a9eabfe691793a8398706bcc09"> 91</a></span>&#160;<span class="keyword">inline</span> <a class="code" href="classmxnet_1_1common_1_1LazyAllocArray.html#a1dd703a9eabfe691793a8398706bcc09">LazyAllocArray&lt;TElem&gt;::LazyAllocArray</a>()</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; : is_clearing_(false) {</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160;}</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;<span class="comment">// implementations</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> TElem&gt;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> FCreate&gt;</div><div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="classmxnet_1_1common_1_1LazyAllocArray.html#ac4528ab581eda5b0aba35faa3687c201"> 98</a></span>&#160;<span class="keyword">inline</span> std::shared_ptr&lt;TElem&gt; <a class="code" href="classmxnet_1_1common_1_1LazyAllocArray.html#ac4528ab581eda5b0aba35faa3687c201">LazyAllocArray&lt;TElem&gt;::Get</a>(<span class="keywordtype">int</span> index, FCreate creator) {</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; CHECK_GE(index, 0);</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keywordtype">size_t</span> idx = <span class="keyword">static_cast&lt;</span><span class="keywordtype">size_t</span><span class="keyword">&gt;</span>(index);</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="keywordflow">if</span> (idx &lt; kInitSize) {</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; std::shared_ptr&lt;TElem&gt; ptr = head_[idx];</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <span class="keywordflow">if</span> (ptr) {</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keywordflow">return</span> ptr;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; std::lock_guard&lt;std::mutex&gt; lock(create_mutex_);</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keywordflow">if</span> (!is_clearing_.load()) {</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; std::shared_ptr&lt;TElem&gt; ptr = head_[idx];</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keywordflow">if</span> (ptr) {</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="keywordflow">return</span> ptr;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; }</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; ptr = head_[idx] = std::shared_ptr&lt;TElem&gt;(creator());</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keywordflow">return</span> ptr;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; }</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; }</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; std::lock_guard&lt;std::mutex&gt; lock(create_mutex_);</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keywordflow">if</span> (!is_clearing_.load()) {</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; idx -= kInitSize;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <span class="keywordflow">if</span> (more_.size() &lt;= idx) {</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; more_.reserve(idx + 1);</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="keywordflow">while</span> (more_.size() &lt;= idx) {</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; more_.push_back(std::shared_ptr&lt;TElem&gt;(<span class="keyword">nullptr</span>));</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; std::shared_ptr&lt;TElem&gt; ptr = more_[idx];</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="keywordflow">if</span> (ptr) {</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="keywordflow">return</span> ptr;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; }</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; ptr = more_[idx] = std::shared_ptr&lt;TElem&gt;(creator());</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keywordflow">return</span> ptr;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; }</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; }</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160;}</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> TElem&gt;</div><div class="line"><a name="l00138"></a><span class="lineno"><a class="line" href="classmxnet_1_1common_1_1LazyAllocArray.html#a3af1ab75feb0ba07db5af7e6ef5717b1"> 138</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1common_1_1LazyAllocArray.html#a3af1ab75feb0ba07db5af7e6ef5717b1">LazyAllocArray&lt;TElem&gt;::Clear</a>() {</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; std::unique_lock&lt;std::mutex&gt; lock(create_mutex_);</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; is_clearing_.store(<span class="keyword">true</span>);</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; <span class="comment">// Currently, head_ and more_ never get smaller, so it&#39;s safe to</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; <span class="comment">// iterate them outside of the lock. The loops should catch</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="comment">// any growth which might happen when create_mutex_ is unlocked</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; head_.size(); ++i) {</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; std::shared_ptr&lt;TElem&gt; p = head_[i];</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; head_[i] = std::shared_ptr&lt;TElem&gt;(<span class="keyword">nullptr</span>);</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; unique_unlock&lt;std::mutex&gt; unlocker(&amp;lock);</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; p = std::shared_ptr&lt;TElem&gt;(<span class="keyword">nullptr</span>);</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; }</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; more_.size(); ++i) {</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; std::shared_ptr&lt;TElem&gt; p = more_[i];</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; more_[i] = std::shared_ptr&lt;TElem&gt;(<span class="keyword">nullptr</span>);</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; unique_unlock&lt;std::mutex&gt; unlocker(&amp;lock);</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; p = std::shared_ptr&lt;TElem&gt;(<span class="keyword">nullptr</span>);</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; }</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; more_.clear();</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; is_clearing_.store(<span class="keyword">false</span>);</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160;}</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> TElem&gt;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> FVisit&gt;</div><div class="line"><a name="l00162"></a><span class="lineno"><a class="line" href="classmxnet_1_1common_1_1LazyAllocArray.html#a43a89c8e7b4e1a09f346694073a2d998"> 162</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1common_1_1LazyAllocArray.html#a43a89c8e7b4e1a09f346694073a2d998">LazyAllocArray&lt;TElem&gt;::ForEach</a>(FVisit fvisit) {</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; std::lock_guard&lt;std::mutex&gt; lock(create_mutex_);</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; head_.size(); ++i) {</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="keywordflow">if</span> (head_[i].<span class="keyword">get</span>() != <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; fvisit(i, head_[i].<span class="keyword">get</span>());</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; }</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; }</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; more_.size(); ++i) {</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="keywordflow">if</span> (more_[i].<span class="keyword">get</span>() != <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; fvisit(i + kInitSize, more_[i].<span class="keyword">get</span>());</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; }</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; }</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160;}</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160;} <span class="comment">// namespace common</span></div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160;} <span class="comment">// namespace mxnet</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160;<span class="preprocessor">#endif // MXNET_COMMON_LAZY_ALLOC_ARRAY_H_</span></div><div class="ttc" id="classmxnet_1_1common_1_1LazyAllocArray_html_ac4528ab581eda5b0aba35faa3687c201"><div class="ttname"><a href="classmxnet_1_1common_1_1LazyAllocArray.html#ac4528ab581eda5b0aba35faa3687c201">mxnet::common::LazyAllocArray::Get</a></div><div class="ttdeci">std::shared_ptr&lt; TElem &gt; Get(int index, FCreate creator)</div><div class="ttdoc">Get element of corresponding index, if it is not created create by creator. </div><div class="ttdef"><b>Definition:</b> lazy_alloc_array.h:98</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> api_registry.h:33</div></div>
<div class="ttc" id="classmxnet_1_1common_1_1LazyAllocArray_html_a3af1ab75feb0ba07db5af7e6ef5717b1"><div class="ttname"><a href="classmxnet_1_1common_1_1LazyAllocArray.html#a3af1ab75feb0ba07db5af7e6ef5717b1">mxnet::common::LazyAllocArray::Clear</a></div><div class="ttdeci">void Clear()</div><div class="ttdoc">clear all the allocated elements in array </div><div class="ttdef"><b>Definition:</b> lazy_alloc_array.h:138</div></div>
<div class="ttc" id="classmxnet_1_1common_1_1LazyAllocArray_html_a43a89c8e7b4e1a09f346694073a2d998"><div class="ttname"><a href="classmxnet_1_1common_1_1LazyAllocArray.html#a43a89c8e7b4e1a09f346694073a2d998">mxnet::common::LazyAllocArray::ForEach</a></div><div class="ttdeci">void ForEach(FVisit fvisit)</div><div class="ttdoc">for each not null element of the array, call fvisit </div><div class="ttdef"><b>Definition:</b> lazy_alloc_array.h:162</div></div>
<div class="ttc" id="classmxnet_1_1common_1_1LazyAllocArray_html"><div class="ttname"><a href="classmxnet_1_1common_1_1LazyAllocArray.html">mxnet::common::LazyAllocArray</a></div><div class="ttdef"><b>Definition:</b> lazy_alloc_array.h:39</div></div>
<div class="ttc" id="classmxnet_1_1common_1_1LazyAllocArray_html_a1dd703a9eabfe691793a8398706bcc09"><div class="ttname"><a href="classmxnet_1_1common_1_1LazyAllocArray.html#a1dd703a9eabfe691793a8398706bcc09">mxnet::common::LazyAllocArray::LazyAllocArray</a></div><div class="ttdeci">LazyAllocArray()</div><div class="ttdef"><b>Definition:</b> lazy_alloc_array.h:91</div></div>
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