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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">Copyright (c) 2006, Michael Kazhdan and Matthew Bolitho</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">All rights reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"></span> </div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">Redistribution and use in source and binary forms, with or without modification,</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">are permitted provided that the following conditions are met:</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"></span> </div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">Redistributions of source code must retain the above copyright notice, this list of</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">conditions and the following disclaimer. Redistributions in binary form must reproduce</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">the above copyright notice, this list of conditions and the following disclaimer</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">in the documentation and/or other materials provided with the distribution. </span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"></span> </div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">Neither the name of the Johns Hopkins University nor the names of its contributors</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">may be used to endorse or promote products derived from this software without specific</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">prior written permission. </span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"></span> </div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO THE IMPLIED WARRANTIES </span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">DAMAGE.</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#ifndef ALLOCATOR_INCLUDED</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#define ALLOCATOR_INCLUDED</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <vector></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  </div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">namespace </span><a class="code" href="namespacepcl.html">pcl</a></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> {</div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="namespacepcl_1_1poisson.html"> 35</a></span>  <span class="keyword">namespace </span>poisson</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  {</div>
<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="classpcl_1_1poisson_1_1_allocator_state.html"> 37</a></span>  <span class="keyword">class </span><a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html">AllocatorState</a>{</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="classpcl_1_1poisson_1_1_allocator_state.html#ab8228b0ac7a1efc048546e3540c1cfba"> 39</a></span>  <span class="keywordtype">int</span> <a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#a34f1d89f68c95fa39b2e29eaee8fd419">index</a>,<a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#ab8228b0ac7a1efc048546e3540c1cfba">remains</a>;</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  };<span class="comment"></span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> /** This templated class assists in memory allocation and is well suited for instances</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * when it is known that the sequence of memory allocations is performed in a stack-based</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * manner, so that memory allocated last is released first. It also preallocates memory</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * in chunks so that multiple requests for small chunks of memory do not require separate</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * system calls to the memory manager.</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * The allocator is templated off of the class of objects that we would like it to allocate,</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * ensuring that appropriate constructors and destructors are called as necessary.</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">template</span><<span class="keyword">class</span> T></div>
<div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="classpcl_1_1poisson_1_1_allocator.html"> 50</a></span>  <span class="keyword">class </span><a class="code" href="classpcl_1_1poisson_1_1_allocator.html">Allocator</a>{</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">int</span> blockSize;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">int</span> index,remains;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  std::vector<T*> memory;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="classpcl_1_1poisson_1_1_allocator.html#ac16fd6379943eea55ef9a5284328081e"> 55</a></span>  <a class="code" href="classpcl_1_1poisson_1_1_allocator.html#ac16fd6379943eea55ef9a5284328081e">Allocator</a>(<span class="keywordtype">void</span>){</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  blockSize=index=remains=0;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  }</div>
<div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="classpcl_1_1poisson_1_1_allocator.html#ab937d9e491529c0f8ab8a76b4863d54e"> 58</a></span>  <a class="code" href="classpcl_1_1poisson_1_1_allocator.html#ab937d9e491529c0f8ab8a76b4863d54e">~Allocator</a>(<span class="keywordtype">void</span>){</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <a class="code" href="classpcl_1_1poisson_1_1_allocator.html#a5fb60e6321b4b65c11e8fc208b6ffda9">reset</a>();</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"></span> </div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> /** This method is the allocators destructor. It frees up any of the memory that</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> * it has allocated. */</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="classpcl_1_1poisson_1_1_allocator.html#a5fb60e6321b4b65c11e8fc208b6ffda9"> 64</a></span>  <span class="keywordtype">void</span> <a class="code" href="classpcl_1_1poisson_1_1_allocator.html#a5fb60e6321b4b65c11e8fc208b6ffda9">reset</a>(<span class="keywordtype">void</span>){</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">for</span>(std::size_t i=0;i<memory.size();i++){<span class="keyword">delete</span>[] memory[i];}</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  memory.clear();</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  blockSize=index=remains=0;</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  }<span class="comment"></span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> /** This method returns the memory state of the allocator. */</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="classpcl_1_1poisson_1_1_allocator.html#a0ab8c615328f98aaccc74e69dd893639"> 70</a></span>  <a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html">AllocatorState</a> <a class="code" href="classpcl_1_1poisson_1_1_allocator.html#a0ab8c615328f98aaccc74e69dd893639">getState</a>(<span class="keywordtype">void</span>)<span class="keyword"> const</span>{</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html">AllocatorState</a> s;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  s.index=index;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  s.remains=remains;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">return</span> s;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  }</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  </div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"></span> </div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"> /** This method rolls back the allocator so that it makes all of the memory previously</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> * allocated available for re-allocation. Note that it does it not call the constructor</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"> * again, so after this method has been called, assumptions about the state of the values</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"> * in memory are no longer valid. */</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="classpcl_1_1poisson_1_1_allocator.html#a7232a3a9f3501f73f6cf1bf9ff7aa316"> 82</a></span>  <span class="keywordtype">void</span> <a class="code" href="classpcl_1_1poisson_1_1_allocator.html#a7232a3a9f3501f73f6cf1bf9ff7aa316">rollBack</a>(<span class="keywordtype">void</span>){</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">if</span>(memory.size()){</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">for</span>(std::size_t i=0;i<memory.size();i++){</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> j=0;j<blockSize;j++){</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  memory[i][j].~T();</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">new</span>(&memory[i][j]) T();</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  }</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  index=0;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  remains=blockSize;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  }<span class="comment"></span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment"> /** This method rolls back the allocator to the previous memory state and makes all of the memory previously</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment"> * allocated available for re-allocation. Note that it does it not call the constructor</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment"> * again, so after this method has been called, assumptions about the state of the values</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"> * in memory are no longer valid. */</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="classpcl_1_1poisson_1_1_allocator.html#ae0029ac7164149702cbd0a2c6ccb68b4"> 98</a></span>  <span class="keywordtype">void</span> <a class="code" href="classpcl_1_1poisson_1_1_allocator.html#ae0029ac7164149702cbd0a2c6ccb68b4">rollBack</a>(<span class="keyword">const</span> <a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html">AllocatorState</a>& state){</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">if</span>(state.<a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#a34f1d89f68c95fa39b2e29eaee8fd419">index</a><index || (state.<a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#a34f1d89f68c95fa39b2e29eaee8fd419">index</a>==index && state.<a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#ab8228b0ac7a1efc048546e3540c1cfba">remains</a><remains)){</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">if</span>(state.<a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#a34f1d89f68c95fa39b2e29eaee8fd419">index</a><index){</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> j=state.<a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#ab8228b0ac7a1efc048546e3540c1cfba">remains</a>;j<blockSize;j++){</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  memory[state.<a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#a34f1d89f68c95fa39b2e29eaee8fd419">index</a>][j].~T();</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keyword">new</span>(&memory[state.<a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#a34f1d89f68c95fa39b2e29eaee8fd419">index</a>][j]) T();</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  }</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i=state.<a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#a34f1d89f68c95fa39b2e29eaee8fd419">index</a>+1;i<index-1;i++){</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> j=0;j<blockSize;j++){</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  memory[i][j].~T();</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">new</span>(&memory[i][j]) T();</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  }</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  }</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> j=0;j<remains;j++){</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  memory[index][j].~T();</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">new</span>(&memory[index][j]) T();</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  }</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  index=state.<a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#a34f1d89f68c95fa39b2e29eaee8fd419">index</a>;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  remains=state.<a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#ab8228b0ac7a1efc048546e3540c1cfba">remains</a>;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">else</span>{</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> j=0;j<state.<a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#ab8228b0ac7a1efc048546e3540c1cfba">remains</a>;j<remains){</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  memory[index][j].~T();</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">new</span>(&memory[index][j]) T();</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  }</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  remains=state.<a class="code" href="classpcl_1_1poisson_1_1_allocator_state.html#ab8228b0ac7a1efc048546e3540c1cfba">remains</a>;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  }</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  }</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment"></span> </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"> /** This method initiallizes the constructor and the blockSize variable specifies the</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> * the number of objects that should be pre-allocated at a time. */</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="classpcl_1_1poisson_1_1_allocator.html#a2f131d31e195009e744ae298d0a495b7"> 130</a></span>  <span class="keywordtype">void</span> <a class="code" href="classpcl_1_1poisson_1_1_allocator.html#a2f131d31e195009e744ae298d0a495b7">set</a>( <span class="keywordtype">int</span> blockSize){</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="classpcl_1_1poisson_1_1_allocator.html#a5fb60e6321b4b65c11e8fc208b6ffda9">reset</a>();</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  this->blockSize=blockSize;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  index=-1;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  remains=0;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  }</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment"></span> </div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment"> /** This method returns a pointer to an array of elements objects. If there is left over pre-allocated</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment"> * memory, this method simply returns a pointer to the next free piece of memory, otherwise it pre-allocates</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment"> * more memory. Note that if the number of objects requested is larger than the value blockSize with which</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> * the allocator was initialized, the request for memory will fail.</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"><a class="line" href="classpcl_1_1poisson_1_1_allocator.html#aab51229c4df33243499c3ed9634698ca"> 142</a></span>  T* <a class="code" href="classpcl_1_1poisson_1_1_allocator.html#aab51229c4df33243499c3ed9634698ca">newElements</a>( <span class="keywordtype">int</span> elements=1){</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  T* mem;</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">if</span>(!elements){<span class="keywordflow">return</span> NULL;}</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">if</span>(elements>blockSize){</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  fprintf(stderr,<span class="stringliteral">"Allocator Error, elements bigger than block-size: %d>%d\n"</span>,elements,blockSize);</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">return</span> NULL;</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>  <span class="keywordflow">if</span>(remains<elements){</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">if</span>(index==memory.size()-1){</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  mem=<span class="keyword">new</span> T[blockSize];</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">if</span>(!mem){fprintf(stderr,<span class="stringliteral">"Failed to allocate memory\n"</span>);exit(0);}</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  memory.push_back(mem);</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>  index++;</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  remains=blockSize;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  }</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  mem=&(memory[index][blockSize-remains]);</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  remains-=elements;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">return</span> mem;</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  }</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  };</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> }</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  </div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="preprocessor">#endif // ALLOCATOR_INCLUDE</span></div>
</div><!-- fragment --></div><!-- contents -->
<div class="ttc" id="anamespacepcl_html"><div class="ttname"><a href="namespacepcl.html">pcl</a></div><div class="ttdef"><b>Definition:</b> <a href="2d_2include_2pcl_22d_2convolution_8h_source.html#l00046">convolution.h:46</a></div></div>
<div class="ttc" id="aclasspcl_1_1poisson_1_1_allocator_html"><div class="ttname"><a href="classpcl_1_1poisson_1_1_allocator.html">pcl::poisson::Allocator</a></div><div class="ttdoc">This templated class assists in memory allocation and is well suited for instances when it is known t...</div><div class="ttdef"><b>Definition:</b> <a href="allocator_8h_source.html#l00050">allocator.h:50</a></div></div>
<div class="ttc" id="aclasspcl_1_1poisson_1_1_allocator_html_a7232a3a9f3501f73f6cf1bf9ff7aa316"><div class="ttname"><a href="classpcl_1_1poisson_1_1_allocator.html#a7232a3a9f3501f73f6cf1bf9ff7aa316">pcl::poisson::Allocator::rollBack</a></div><div class="ttdeci">void rollBack(void)</div><div class="ttdoc">This method rolls back the allocator so that it makes all of the memory previously allocated availabl...</div><div class="ttdef"><b>Definition:</b> <a href="allocator_8h_source.html#l00082">allocator.h:82</a></div></div>
<div class="ttc" id="aclasspcl_1_1poisson_1_1_allocator_html_ab937d9e491529c0f8ab8a76b4863d54e"><div class="ttname"><a href="classpcl_1_1poisson_1_1_allocator.html#ab937d9e491529c0f8ab8a76b4863d54e">pcl::poisson::Allocator::~Allocator</a></div><div class="ttdeci">~Allocator(void)</div><div class="ttdef"><b>Definition:</b> <a href="allocator_8h_source.html#l00058">allocator.h:58</a></div></div>
<div class="ttc" id="aclasspcl_1_1poisson_1_1_allocator_html_a5fb60e6321b4b65c11e8fc208b6ffda9"><div class="ttname"><a href="classpcl_1_1poisson_1_1_allocator.html#a5fb60e6321b4b65c11e8fc208b6ffda9">pcl::poisson::Allocator::reset</a></div><div class="ttdeci">void reset(void)</div><div class="ttdoc">This method is the allocators destructor.</div><div class="ttdef"><b>Definition:</b> <a href="allocator_8h_source.html#l00064">allocator.h:64</a></div></div>
<div class="ttc" id="aclasspcl_1_1poisson_1_1_allocator_html_a2f131d31e195009e744ae298d0a495b7"><div class="ttname"><a href="classpcl_1_1poisson_1_1_allocator.html#a2f131d31e195009e744ae298d0a495b7">pcl::poisson::Allocator::set</a></div><div class="ttdeci">void set(int blockSize)</div><div class="ttdoc">This method initiallizes the constructor and the blockSize variable specifies the the number of objec...</div><div class="ttdef"><b>Definition:</b> <a href="allocator_8h_source.html#l00130">allocator.h:130</a></div></div>
<div class="ttc" id="aclasspcl_1_1poisson_1_1_allocator_html_aab51229c4df33243499c3ed9634698ca"><div class="ttname"><a href="classpcl_1_1poisson_1_1_allocator.html#aab51229c4df33243499c3ed9634698ca">pcl::poisson::Allocator::newElements</a></div><div class="ttdeci">T * newElements(int elements=1)</div><div class="ttdoc">This method returns a pointer to an array of elements objects.</div><div class="ttdef"><b>Definition:</b> <a href="allocator_8h_source.html#l00142">allocator.h:142</a></div></div>
<div class="ttc" id="aclasspcl_1_1poisson_1_1_allocator_state_html_ab8228b0ac7a1efc048546e3540c1cfba"><div class="ttname"><a href="classpcl_1_1poisson_1_1_allocator_state.html#ab8228b0ac7a1efc048546e3540c1cfba">pcl::poisson::AllocatorState::remains</a></div><div class="ttdeci">int remains</div><div class="ttdef"><b>Definition:</b> <a href="allocator_8h_source.html#l00039">allocator.h:39</a></div></div>
<div class="ttc" id="aclasspcl_1_1poisson_1_1_allocator_state_html"><div class="ttname"><a href="classpcl_1_1poisson_1_1_allocator_state.html">pcl::poisson::AllocatorState</a></div><div class="ttdef"><b>Definition:</b> <a href="allocator_8h_source.html#l00037">allocator.h:37</a></div></div>
<div class="ttc" id="aclasspcl_1_1poisson_1_1_allocator_html_a0ab8c615328f98aaccc74e69dd893639"><div class="ttname"><a href="classpcl_1_1poisson_1_1_allocator.html#a0ab8c615328f98aaccc74e69dd893639">pcl::poisson::Allocator::getState</a></div><div class="ttdeci">AllocatorState getState(void) const</div><div class="ttdoc">This method returns the memory state of the allocator.</div><div class="ttdef"><b>Definition:</b> <a href="allocator_8h_source.html#l00070">allocator.h:70</a></div></div>
<div class="ttc" id="aclasspcl_1_1poisson_1_1_allocator_state_html_a34f1d89f68c95fa39b2e29eaee8fd419"><div class="ttname"><a href="classpcl_1_1poisson_1_1_allocator_state.html#a34f1d89f68c95fa39b2e29eaee8fd419">pcl::poisson::AllocatorState::index</a></div><div class="ttdeci">int index</div><div class="ttdef"><b>Definition:</b> <a href="allocator_8h_source.html#l00039">allocator.h:39</a></div></div>
<div class="ttc" id="aclasspcl_1_1poisson_1_1_allocator_html_ae0029ac7164149702cbd0a2c6ccb68b4"><div class="ttname"><a href="classpcl_1_1poisson_1_1_allocator.html#ae0029ac7164149702cbd0a2c6ccb68b4">pcl::poisson::Allocator::rollBack</a></div><div class="ttdeci">void rollBack(const AllocatorState &state)</div><div class="ttdoc">This method rolls back the allocator to the previous memory state and makes all of the memory previou...</div><div class="ttdef"><b>Definition:</b> <a href="allocator_8h_source.html#l00098">allocator.h:98</a></div></div>
<div class="ttc" id="aclasspcl_1_1poisson_1_1_allocator_html_ac16fd6379943eea55ef9a5284328081e"><div class="ttname"><a href="classpcl_1_1poisson_1_1_allocator.html#ac16fd6379943eea55ef9a5284328081e">pcl::poisson::Allocator::Allocator</a></div><div class="ttdeci">Allocator(void)</div><div class="ttdef"><b>Definition:</b> <a href="allocator_8h_source.html#l00055">allocator.h:55</a></div></div>
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