-
Notifications
You must be signed in to change notification settings - Fork 13
/
allocator_8h_source.html
263 lines (261 loc) · 36.9 KB
/
allocator_8h_source.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.9.1"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>Point Cloud Library (PCL): pcl/surface/3rdparty/poisson4/allocator.h Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></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 cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">Point Cloud Library (PCL)
 <span id="projectnumber">1.14.1-dev</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.9.1 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
var searchBox = new SearchBox("searchBox", "search",false,'Search','.html');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
/* @license-end */</script>
<div id="main-nav"></div>
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div id="nav-path" class="navpath">
<ul>
<li class="navelem"><a class="el" href="dir_c085629c2ec3cefd048e595d13476517.html">pcl</a></li><li class="navelem"><a class="el" href="dir_b042217bdec4068b97400d7bbc365877.html">surface</a></li><li class="navelem"><a class="el" href="dir_f289cf8a53139bf575d4708d4be18702.html">3rdparty</a></li><li class="navelem"><a class="el" href="dir_cb244bdbdd28d1e4f2f220ed9667ec05.html">poisson4</a></li> </ul>
</div>
</div><!-- top -->
<div class="header">
<div class="headertitle">
<div class="title">allocator.h</div> </div>
</div><!--header-->
<div class="contents">
<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#a34f1d89f68c95fa39b2e29eaee8fd419"> 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 </span><span class="comment">// ALLOCATOR_INCLUDE</span></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_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_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_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_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_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_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_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>
<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_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_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_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="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><!-- fragment --></div><!-- contents -->
<hr>
<div id="footer">
<p>
Except where otherwise noted, the PointClouds.org web pages are licensed under <a href="http://creativecommons.org/licenses/by/3.0/">Creative Commons Attribution 3.0</a>.
</p>
<p>Pages generated on Sat Dec 21 2024 21:36:22</p>
</div> <!-- #footer -->
</body>
</html>