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<div id="projectname">apt
 <span id="projectnumber">1.4.6</span>
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<div id="projectbrief">commandline package manager</div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// -*- mode: cpp; mode: fold -*-</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Description /*{{{*/</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">/* ######################################################################</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"> Order List - Represents and Manipulates an ordered list of packages.</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> </span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> A list of packages can be ordered by a number of conflicting criteria</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> each given a specific priority. Each package also has a set of flags</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> indicating some useful things about it that are derived in the </span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> course of sorting. The pkgPackageManager class uses this class for</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> all of it's installation ordering needs.</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"> ##################################################################### */</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  <span class="comment">/*}}}*/</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#ifndef PKGLIB_ORDERLIST_H</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#define PKGLIB_ORDERLIST_H</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <<a class="code" href="pkgcache_8h.xhtml">apt-pkg/pkgcache.h</a>></span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <apt-pkg/cacheiterators.h></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <apt-pkg/macros.h></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">class </span><a class="code" href="classpkgDepCache.xhtml">pkgDepCache</a>;</div><div class="line"><a name="l00025"></a><span class="lineno"><a class="line" href="classpkgOrderList.xhtml"> 25</a></span> <span class="keyword">class </span><a class="code" href="classpkgOrderList.xhtml">pkgOrderList</a> : <span class="keyword">protected</span> <a class="code" href="classpkgCache_1_1Namespace.xhtml">pkgCache::Namespace</a></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> {</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordtype">void</span> * <span class="keyword">const</span> d;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <a class="code" href="classpkgDepCache.xhtml">pkgDepCache</a> &Cache; </div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keyword">typedef</span> bool (<a class="code" href="classpkgOrderList.xhtml">pkgOrderList</a>::*DepFunc)(<a class="code" href="classpkgCache_1_1DepIterator.xhtml">DepIterator</a> D);</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="comment">// These are the currently selected ordering functions</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  DepFunc Primary;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  DepFunc Secondary;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  DepFunc RevDepends;</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  DepFunc Remove;</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="comment">// State</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  Package **End;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  Package **List;</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  Package **AfterEnd;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  std::string *FileList;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <a class="code" href="classpkgCache_1_1DepIterator.xhtml">DepIterator</a> Loops[20];</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">int</span> LoopCount;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">int</span> Depth;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> *Flags;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">bool</span> Debug;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  </div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// Main visit function</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  APT_DEPRECATED_MSG(<span class="stringliteral">"Add a unique calling identifier as parameter for debugging output"</span>) <span class="keywordtype">bool</span> VisitNode(<a class="code" href="classpkgCache_1_1PkgIterator.xhtml">PkgIterator</a> Pkg) { <span class="keywordflow">return</span> VisitNode(Pkg, <span class="stringliteral">"UNKNOWN"</span>); };</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">bool</span> VisitNode(<a class="code" href="classpkgCache_1_1PkgIterator.xhtml">PkgIterator</a> Pkg, <span class="keywordtype">char</span> <span class="keyword">const</span>* from);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">bool</span> VisitDeps(DepFunc F,<a class="code" href="classpkgCache_1_1PkgIterator.xhtml">PkgIterator</a> Pkg);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">bool</span> VisitRDeps(DepFunc F,<a class="code" href="classpkgCache_1_1PkgIterator.xhtml">PkgIterator</a> Pkg);</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">bool</span> VisitRProvides(DepFunc F,<a class="code" href="classpkgCache_1_1VerIterator.xhtml">VerIterator</a> Ver);</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordtype">bool</span> VisitProvides(<a class="code" href="classpkgCache_1_1DepIterator.xhtml">DepIterator</a> Pkg,<span class="keywordtype">bool</span> Critical);</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  </div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">// Dependency checking functions.</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">bool</span> DepUnPackCrit(<a class="code" href="classpkgCache_1_1DepIterator.xhtml">DepIterator</a> D);</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordtype">bool</span> DepUnPackPreD(<a class="code" href="classpkgCache_1_1DepIterator.xhtml">DepIterator</a> D);</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">bool</span> DepUnPackPre(<a class="code" href="classpkgCache_1_1DepIterator.xhtml">DepIterator</a> D);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">bool</span> DepUnPackDep(<a class="code" href="classpkgCache_1_1DepIterator.xhtml">DepIterator</a> D);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordtype">bool</span> DepConfigure(<a class="code" href="classpkgCache_1_1DepIterator.xhtml">DepIterator</a> D);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordtype">bool</span> DepRemove(<a class="code" href="classpkgCache_1_1DepIterator.xhtml">DepIterator</a> D);</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">// Analysis helpers</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordtype">bool</span> AddLoop(<a class="code" href="classpkgCache_1_1DepIterator.xhtml">DepIterator</a> D);</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">bool</span> CheckDep(<a class="code" href="classpkgCache_1_1DepIterator.xhtml">DepIterator</a> D);</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">bool</span> DoRun();</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  </div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="comment">// For pre sorting</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordtype">int</span> OrderCompareA(Package *a, Package *b) APT_PURE;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordtype">int</span> OrderCompareB(Package *a, Package *b) APT_PURE;</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">int</span> FileCmp(<a class="code" href="classpkgCache_1_1PkgIterator.xhtml">PkgIterator</a> A,<a class="code" href="classpkgCache_1_1PkgIterator.xhtml">PkgIterator</a> B) APT_PURE;</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>  <span class="keyword">public</span>:</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">typedef</span> Package **iterator;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">/* State flags</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"> The Loop flag can be set on a package that is currently being processed by either SmartConfigure or</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> SmartUnPack. This allows the package manager to tell when a loop has been formed as it will try to </span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> SmartUnPack or SmartConfigure a package with the Loop flag set. It will then either stop (as it knows</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"> that the operation is unnecessary as its already in process), or in the case of the conflicts resolution</span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"> in SmartUnPack, use EarlyRemove to resolve the situation. */</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">enum</span> Flags {Added = (1 << 0), AddPending = (1 << 1),</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  Immediate = (1 << 2), Loop = (1 << 3),</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  UnPacked = (1 << 4), Configured = (1 << 5),</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  Removed = (1 << 6), <span class="comment">// Early Remove</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  InList = (1 << 7),</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  After = (1 << 8),</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  States = (UnPacked | Configured | Removed)};</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="comment">// Flag manipulators</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span> IsFlag(<a class="code" href="classpkgCache_1_1PkgIterator.xhtml">PkgIterator</a> Pkg,<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> F) {<span class="keywordflow">return</span> (Flags[Pkg->ID] & F) == F;};</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span> IsFlag(Package *Pkg,<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> F) {<span class="keywordflow">return</span> (Flags[Pkg->ID] & F) == F;};</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordtype">void</span> <a class="code" href="structpkgCache_1_1Flag.xhtml">Flag</a>(<a class="code" href="classpkgCache_1_1PkgIterator.xhtml">PkgIterator</a> Pkg,<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> State, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> F) {Flags[Pkg->ID] = (Flags[Pkg->ID] & (~F)) | State;};</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="structpkgCache_1_1Flag.xhtml">Flag</a>(<a class="code" href="classpkgCache_1_1PkgIterator.xhtml">PkgIterator</a> Pkg,<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> F) {Flags[Pkg->ID] |= F;};</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="structpkgCache_1_1Flag.xhtml">Flag</a>(Package *Pkg,<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> F) {Flags[Pkg->ID] |= F;};</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// RmFlag removes a flag from a package </span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> RmFlag(Package *Pkg,<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> F) {Flags[Pkg->ID] &= ~F;};</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="comment">// IsNow will return true if the Pkg has been not been either configured or unpacked</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span> IsNow(<a class="code" href="classpkgCache_1_1PkgIterator.xhtml">PkgIterator</a> Pkg) {<span class="keywordflow">return</span> (Flags[Pkg->ID] & (States & (~Removed))) == 0;};</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordtype">bool</span> IsMissing(<a class="code" href="classpkgCache_1_1PkgIterator.xhtml">PkgIterator</a> Pkg) APT_PURE;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordtype">void</span> WipeFlags(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> F);</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordtype">void</span> SetFileList(std::string *FileList) {this->FileList = FileList;};</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="comment">// Accessors</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keyword">inline</span> iterator begin() {<span class="keywordflow">return</span> List;};</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keyword">inline</span> iterator end() {<span class="keywordflow">return</span> End;};</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> push_back(Package *Pkg) {*(End++) = Pkg;};</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> push_back(<a class="code" href="classpkgCache_1_1PkgIterator.xhtml">PkgIterator</a> Pkg) {*(End++) = Pkg;};</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> pop_back() {End--;};</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span> empty() {<span class="keywordflow">return</span> End == List;};</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size() {<span class="keywordflow">return</span> End - List;};</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="comment">// Ordering modes</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordtype">bool</span> OrderCritical();</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordtype">bool</span> OrderUnpack(std::string *FileList = 0);</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">bool</span> OrderConfigure();</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordtype">int</span> Score(<a class="code" href="classpkgCache_1_1PkgIterator.xhtml">PkgIterator</a> Pkg);</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keyword">explicit</span> <a class="code" href="classpkgOrderList.xhtml">pkgOrderList</a>(<a class="code" href="classpkgDepCache.xhtml">pkgDepCache</a> *Cache);</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keyword">virtual</span> ~<a class="code" href="classpkgOrderList.xhtml">pkgOrderList</a>();</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> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="classpkgCache_1_1DepIterator_xhtml"><div class="ttname"><a href="classpkgCache_1_1DepIterator.xhtml">pkgCache::DepIterator</a></div><div class="ttdef"><b>Definition:</b> cacheiterators.h:277</div></div>
<div class="ttc" id="structpkgCache_1_1Flag_xhtml"><div class="ttname"><a href="structpkgCache_1_1Flag.xhtml">pkgCache::Flag</a></div><div class="ttdef"><b>Definition:</b> pkgcache.h:177</div></div>
<div class="ttc" id="classpkgCache_1_1Namespace_xhtml"><div class="ttname"><a href="classpkgCache_1_1Namespace.xhtml">pkgCache::Namespace</a></div><div class="ttdef"><b>Definition:</b> pkgcache.h:805</div></div>
<div class="ttc" id="classpkgDepCache_xhtml"><div class="ttname"><a href="classpkgDepCache.xhtml">pkgDepCache</a></div><div class="ttdef"><b>Definition:</b> depcache.h:64</div></div>
<div class="ttc" id="classpkgCache_1_1VerIterator_xhtml"><div class="ttname"><a href="classpkgCache_1_1VerIterator.xhtml">pkgCache::VerIterator</a></div><div class="ttdef"><b>Definition:</b> cacheiterators.h:194</div></div>
<div class="ttc" id="pkgcache_8h_xhtml"><div class="ttname"><a href="pkgcache_8h.xhtml">pkgcache.h</a></div><div class="ttdoc">pkgCache - Structure definitions for the cache file </div></div>
<div class="ttc" id="classpkgOrderList_xhtml"><div class="ttname"><a href="classpkgOrderList.xhtml">pkgOrderList</a></div><div class="ttdef"><b>Definition:</b> orderlist.h:25</div></div>
<div class="ttc" id="classpkgCache_1_1PkgIterator_xhtml"><div class="ttname"><a href="classpkgCache_1_1PkgIterator.xhtml">pkgCache::PkgIterator</a></div><div class="ttdef"><b>Definition:</b> cacheiterators.h:144</div></div>
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