193 lines
18 KiB
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193 lines
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<div id="projectname">GpgFrontend Project
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<div id="projectbrief">A Free, Powerful, Easy-to-Use, Compact, Cross-Platform, and Installation-Free OpenPGP(pgp) Crypto Tool.</div>
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<div class="title">secmem++.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* STL allocator for secmem</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2008 Marc Mutz <marc@kdab.com></span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * This program is free software; you can redistribute it and/or modify</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * it under the terms of the GNU General Public License as published by</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * (at your option) any later version.</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * This program is distributed in the hope that it will be useful,</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * GNU General Public License for more details.</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * You should have received a copy of the GNU General Public License</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * along with this program; if not, see <https://www.gnu.org/licenses/>.</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * SPDX-License-Identifier: GPL-2.0+</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  </div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#ifndef __SECMEM_SECMEMPP_H__</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#define __SECMEM_SECMEMPP_H__</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  </div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "../secmem/secmem.h"</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <cstddef></span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  </div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">namespace </span>secmem {</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  </div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="classsecmem_1_1alloc.html"> 28</a></span>  <span class="keyword">class </span><a class="code" href="classsecmem_1_1alloc.html">alloc</a> {</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="comment">// type definitions:</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keyword">typedef</span> <span class="keywordtype">size_t</span> size_type;</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">typedef</span> ptrdiff_t difference_type;</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">typedef</span> T* pointer;</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keyword">typedef</span> <span class="keyword">const</span> T* const_pointer;</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">typedef</span> T& reference;</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">typedef</span> <span class="keyword">const</span> T& const_reference;</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">typedef</span> T value_type;</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  </div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="comment">// rebind</span></div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> U></div>
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<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="structsecmem_1_1alloc_1_1rebind.html"> 41</a></span>  <span class="keyword">struct </span><a class="code" href="structsecmem_1_1alloc_1_1rebind.html">rebind</a> {</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">typedef</span> <a class="code" href="classsecmem_1_1alloc.html">alloc<U></a> <a class="code" href="classsecmem_1_1alloc.html">other</a>;</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  };</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  </div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="comment">// address</span></div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  pointer address( reference value )<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">return</span> &value;</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  }</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  const_pointer address( const_reference value )<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">return</span> &value;</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  }</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  </div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="comment">// (trivial) ctors and dtors</span></div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  alloc() {}</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  alloc( <span class="keyword">const</span> alloc & ) {}</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> U> alloc( <span class="keyword">const</span> alloc<U> & ) {}</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">// copy ctor is ok</span></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  ~alloc() {}</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  </div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// de/allocation</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  size_type max_size()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">return</span> secmem_get_max_size();</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  }</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  </div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  pointer allocate( size_type n, <span class="keywordtype">void</span> * =0 ) {</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>pointer<span class="keyword">></span>( secmem_malloc( n * <span class="keyword">sizeof</span>(T) ) );</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  }</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  </div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">void</span> deallocate( pointer p, size_type ) {</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  secmem_free( p );</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  </div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">// de/construct</span></div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">void</span> construct( pointer p, <span class="keyword">const</span> T & value ) {</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">void</span> * loc = p;</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">new</span> (loc)T(value);</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  }</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordtype">void</span> destruct( pointer p ) {</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  p->~T();</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  }</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  };</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  </div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="comment">// equality comparison</span></div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T1,<span class="keyword">typename</span> T2></div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">bool</span> operator==( <span class="keyword">const</span> alloc<T1> &, <span class="keyword">const</span> alloc<T2> & ) { <span class="keywordflow">return</span> <span class="keyword">true</span>; }</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T1, <span class="keyword">typename</span> T2></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordtype">bool</span> operator!=( <span class="keyword">const</span> alloc<T1> &, <span class="keyword">const</span> alloc<T2> & ) { <span class="keywordflow">return</span> <span class="keyword">false</span>; }</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  </div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> }</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  </div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="preprocessor">#endif </span><span class="comment">/* __SECMEM_SECMEMPP_H__ */</span><span class="preprocessor"></span></div>
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<div class="ttc" id="aclasssecmem_1_1alloc_html"><div class="ttname"><a href="classsecmem_1_1alloc.html">secmem::alloc</a></div><div class="ttdef"><b>Definition:</b> secmem++.h:28</div></div>
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<div class="ttc" id="astructsecmem_1_1alloc_1_1rebind_html"><div class="ttname"><a href="structsecmem_1_1alloc_1_1rebind.html">secmem::alloc::rebind</a></div><div class="ttdef"><b>Definition:</b> secmem++.h:41</div></div>
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