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<div class="headertitle"><div class="title">fcfs_scheduling.cpp</div></div>
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<a href="../../df/d47/fcfs__scheduling_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> </div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include <algorithm></span> </div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include <cassert></span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include <cstdint></span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include <cstdlib></span> </div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <ctime></span> </div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <iomanip></span> </div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <iostream></span> </div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include <queue></span> </div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include <unordered_set></span> </div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include <vector></span> </div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="keyword">using </span>std::cin;</div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="keyword">using </span>std::cout;</div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="keyword">using </span>std::endl;</div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="keyword">using </span>std::get;</div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="keyword">using </span>std::left;</div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="keyword">using </span>std::make_tuple;</div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword">using </span>std::priority_queue;</div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="keyword">using </span>std::rand;</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">using </span>std::srand;</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="keyword">using </span>std::tuple;</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="keyword">using </span>std::unordered_set;</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="keyword">using </span>std::vector;</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="keyword">template</span> <<span class="keyword">typename</span> S, <span class="keyword">typename</span> T, <span class="keyword">typename</span> E></div>
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<div class="foldopen" id="foldopen00046" data-start="{" data-end="}">
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"><a class="line" href="../../df/d47/fcfs__scheduling_8cpp.html#a18920aa331faf4476b251c8cdb2c2bec"> 46</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="../../df/d47/fcfs__scheduling_8cpp.html#a18920aa331faf4476b251c8cdb2c2bec">sortcol</a>(tuple<S, T, E>& t1, tuple<S, T, E>& t2) {</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keywordflow">if</span> (get<1>(t1) < get<1>(t2)) {</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (get<1>(t1) == get<1>(t2) && get<0>(t1) < get<0>(t2)) {</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> }</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span>}</div>
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</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span></div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="keyword">template</span> <<span class="keyword">typename</span> S, <span class="keyword">typename</span> T, <span class="keyword">typename</span> E></div>
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<div class="foldopen" id="foldopen00063" data-start="{" data-end="};">
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"><a class="line" href="../../de/d4a/class_compare.html"> 63</a></span><span class="keyword">class </span><a class="code hl_class" href="../../de/d4a/class_compare.html">Compare</a> {</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keyword">public</span>:</div>
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<div class="foldopen" id="foldopen00076" data-start="{" data-end="}">
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"><a class="line" href="../../de/d4a/class_compare.html#afbdf9a44adb49728dc704155d7d1570c"> 76</a></span> <span class="keywordtype">bool</span> <a class="code hl_function" href="../../de/d4a/class_compare.html#afbdf9a44adb49728dc704155d7d1570c">operator()</a>(tuple<S, T, E, double, double, double>& t1,</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> tuple<S, T, E, double, double, double>& t2) {</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="comment">// Compare arrival times</span></div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keywordflow">if</span> (get<1>(t2) < get<1>(t1)) {</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> }</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// If arrival times are same, then compare Process IDs</span></div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (get<1>(t2) == get<1>(t1)) {</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keywordflow">return</span> get<0>(t2) < get<0>(t1);</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> }</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> }</div>
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</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span>};</div>
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</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span></div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span><span class="keyword">template</span> <<span class="keyword">typename</span> S, <span class="keyword">typename</span> T, <span class="keyword">typename</span> E></div>
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<div class="foldopen" id="foldopen00098" data-start="{" data-end="};">
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"><a class="line" href="../../dd/dca/class_f_c_f_s.html"> 98</a></span><span class="keyword">class </span><a class="code hl_class" href="../../dd/dca/class_f_c_f_s.html">FCFS</a> {</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> priority_queue<tuple<S, T, E, double, double, double>,</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> vector<tuple<S, T, E, double, double, double>>,</div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <a class="code hl_class" href="../../de/d4a/class_compare.html">Compare<S, T, E></a>></div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"><a class="line" href="../../dd/dca/class_f_c_f_s.html#af2594e22a867b308e027623940193d46"> 112</a></span> <a class="code hl_variable" href="../../dd/dca/class_f_c_f_s.html#af2594e22a867b308e027623940193d46">schedule</a>;</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> </div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="comment">// Stores final status of all the processes after completing the execution.</span></div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> vector<tuple<S, T, E, double, double, double>> result;</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> </div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="comment">// Stores process IDs. Used for confirming absence of a process while adding</span></div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="comment">// it.</span></div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> unordered_set<S> idList;</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> </div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <span class="keyword">public</span>:</div>
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<div class="foldopen" id="foldopen00130" data-start="{" data-end="}">
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"><a class="line" href="../../dd/dca/class_f_c_f_s.html#a8fbfe4d85f7576b4a7aade07d29fbd69"> 130</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="../../dd/dca/class_f_c_f_s.html#a8fbfe4d85f7576b4a7aade07d29fbd69">addProcess</a>(S <span class="keywordtype">id</span>, T arrival, E burst) {</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="comment">// Add if a process with process ID as id is not found in idList.</span></div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">if</span> (idList.find(<span class="keywordtype">id</span>) == idList.end()) {</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> tuple<S, T, E, double, double, double> t =</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> make_tuple(<span class="keywordtype">id</span>, arrival, burst, 0, 0, 0);</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <a class="code hl_variable" href="../../dd/dca/class_f_c_f_s.html#af2594e22a867b308e027623940193d46">schedule</a>.push(t);</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> idList.insert(<span class="keywordtype">id</span>);</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> }</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> }</div>
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</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span></div>
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<div class="foldopen" id="foldopen00155" data-start="{" data-end="}">
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"><a class="line" href="../../dd/dca/class_f_c_f_s.html#aa25dbe30ba9930b5a7c1a6d11758bd91"> 155</a></span> vector<tuple<S, T, E, double, double, double>> <a class="code hl_function" href="../../dd/dca/class_f_c_f_s.html#aa25dbe30ba9930b5a7c1a6d11758bd91">scheduleForFcfs</a>() {</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="comment">// Variable to keep track of time elapsed so far</span></div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="keywordtype">double</span> timeElapsed = 0;</div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> </div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keywordflow">while</span> (!<a class="code hl_variable" href="../../dd/dca/class_f_c_f_s.html#af2594e22a867b308e027623940193d46">schedule</a>.empty()) {</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> tuple<S, T, E, double, double, double> cur = <a class="code hl_variable" href="../../dd/dca/class_f_c_f_s.html#af2594e22a867b308e027623940193d46">schedule</a>.top();</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> </div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="comment">// If the current process arrived at time t2, the last process</span></div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="comment">// completed its execution at time t1, and t2 > t1.</span></div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keywordflow">if</span> (get<1>(cur) > timeElapsed) {</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> timeElapsed += get<1>(cur) - timeElapsed;</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> }</div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> </div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="comment">// Add Burst time to time elapsed</span></div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> timeElapsed += get<2>(cur);</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> </div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> <span class="comment">// Completion time of the current process will be same as time</span></div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="comment">// elapsed so far</span></div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> get<3>(cur) = timeElapsed;</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> </div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="comment">// Turnaround time = Completion time - Arrival time</span></div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> get<4>(cur) = get<3>(cur) - get<1>(cur);</div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> </div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="comment">// Waiting time = Turnaround time - Burst time</span></div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> get<5>(cur) = get<4>(cur) - get<2>(cur);</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> </div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> result.push_back(cur);</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <a class="code hl_variable" href="../../dd/dca/class_f_c_f_s.html#af2594e22a867b308e027623940193d46">schedule</a>.pop();</div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> }</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="keywordflow">return</span> result;</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> }</div>
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</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span></div>
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<div class="foldopen" id="foldopen00192" data-start="{" data-end="}">
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"><a class="line" href="../../dd/dca/class_f_c_f_s.html#abb361a612b18bb189aa6d3c49288b793"> 192</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="../../dd/dca/class_f_c_f_s.html#abb361a612b18bb189aa6d3c49288b793">printResult</a>() {</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> cout << <span class="stringliteral">"Status of all the proceses post completion is as follows:"</span></div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> << <a class="code hl_define" href="../../d7/d35/matrix__exponentiation_8cpp.html#a600eaf353befc174637855795f12d258">endl</a>;</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> </div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> cout << std::setw(17) << left << <span class="stringliteral">"Process ID"</span> << std::setw(17) << left</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> << <span class="stringliteral">"Arrival Time"</span> << std::setw(17) << left << <span class="stringliteral">"Burst Time"</span></div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> << std::setw(17) << left << <span class="stringliteral">"Completion Time"</span> << std::setw(17)</div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> << left << <span class="stringliteral">"Turnaround Time"</span> << std::setw(17) << left</div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> << <span class="stringliteral">"Waiting Time"</span> << <a class="code hl_define" href="../../d7/d35/matrix__exponentiation_8cpp.html#a600eaf353befc174637855795f12d258">endl</a>;</div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> </div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i{}; i < result.size(); i++) {</div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> cout << std::setprecision(2) << std::fixed << std::setw(17) << left</div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> << get<0>(result[i]) << std::setw(17) << left</div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> << get<1>(result[i]) << std::setw(17) << left</div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> << get<2>(result[i]) << std::setw(17) << left</div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> << get<3>(result[i]) << std::setw(17) << left</div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> << get<4>(result[i]) << std::setw(17) << left</div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> << get<5>(result[i]) << <a class="code hl_define" href="../../d7/d35/matrix__exponentiation_8cpp.html#a600eaf353befc174637855795f12d258">endl</a>;</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> }</div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> }</div>
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</div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span>};</div>
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</div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span></div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span><span class="keyword">template</span> <<span class="keyword">typename</span> S, <span class="keyword">typename</span> T, <span class="keyword">typename</span> E></div>
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<div class="foldopen" id="foldopen00226" data-start="{" data-end="}">
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"><a class="line" href="../../df/d47/fcfs__scheduling_8cpp.html#a8f2b90cb64d63a7080965e66a05ccf86"> 226</a></span>vector<tuple<S, T, E, double, double, double>> <a class="code hl_function" href="../../df/d47/fcfs__scheduling_8cpp.html#a8f2b90cb64d63a7080965e66a05ccf86">get_final_status</a>(</div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> vector<tuple<uint32_t, uint32_t, uint32_t>> input) {</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> sort(input.begin(), input.end(), <a class="code hl_function" href="../../df/d47/fcfs__scheduling_8cpp.html#a18920aa331faf4476b251c8cdb2c2bec">sortcol<S, T, E></a>);</div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> vector<tuple<S, T, E, double, double, double>> result(input.size());</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <span class="keywordtype">double</span> timeElapsed = 0;</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i{}; i < input.size(); i++) {</div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> T arrival = get<1>(input[i]);</div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> E burst = get<2>(input[i]);</div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> </div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keywordflow">if</span> (arrival > timeElapsed) {</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> timeElapsed += arrival - timeElapsed;</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> }</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> timeElapsed += burst;</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> <span class="keywordtype">double</span> completion = timeElapsed;</div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="keywordtype">double</span> turnaround = completion - arrival;</div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="keywordtype">double</span> waiting = turnaround - burst;</div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> </div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> get<0>(result[i]) = get<0>(input[i]);</div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> get<1>(result[i]) = arrival;</div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> get<2>(result[i]) = burst;</div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> get<3>(result[i]) = completion;</div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> get<4>(result[i]) = turnaround;</div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> get<5>(result[i]) = waiting;</div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> }</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keywordflow">return</span> result;</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span>}</div>
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</div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span></div>
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<div class="foldopen" id="foldopen00257" data-start="{" data-end="}">
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"><a class="line" href="../../df/d47/fcfs__scheduling_8cpp.html#aa8dca7b867074164d5f45b0f3851269d"> 257</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="../../df/d47/fcfs__scheduling_8cpp.html#aa8dca7b867074164d5f45b0f3851269d">test</a>() {</div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i{}; i < 1000; i++) {</div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> srand(time(<span class="keyword">nullptr</span>));</div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> uint32_t n = 1 + rand() % 1000;</div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <a class="code hl_class" href="../../dd/dca/class_f_c_f_s.html">FCFS<uint32_t, uint32_t, uint32_t></a> readyQueue;</div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> vector<tuple<uint32_t, uint32_t, uint32_t>> input(n);</div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> </div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <span class="keywordflow">for</span> (uint32_t i{}; i < n; i++) {</div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> get<0>(input[i]) = i;</div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> srand(time(<span class="keyword">nullptr</span>));</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> get<1>(input[i]) = 1 + rand() % 10000;</div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> srand(time(<span class="keyword">nullptr</span>));</div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> get<2>(input[i]) = 1 + rand() % 10000;</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> }</div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> </div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> <span class="keywordflow">for</span> (uint32_t i{}; i < n; i++) {</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> readyQueue.<a class="code hl_function" href="../../dd/dca/class_f_c_f_s.html#a8fbfe4d85f7576b4a7aade07d29fbd69">addProcess</a>(get<0>(input[i]), get<1>(input[i]),</div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> get<2>(input[i]));</div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> }</div>
|
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> vector<tuple<uint32_t, uint32_t, uint32_t, double, double, double>></div>
|
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> res = <a class="code hl_function" href="../../df/d47/fcfs__scheduling_8cpp.html#a8f2b90cb64d63a7080965e66a05ccf86">get_final_status<uint32_t, uint32_t, uint32_t></a>(input);</div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> assert(res == readyQueue.<a class="code hl_function" href="../../dd/dca/class_f_c_f_s.html#aa25dbe30ba9930b5a7c1a6d11758bd91">scheduleForFcfs</a>());</div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> <span class="comment">// readyQueue.printResult();</span></div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> }</div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> cout << <span class="stringliteral">"All the tests have successfully passed!"</span> << <a class="code hl_define" href="../../d7/d35/matrix__exponentiation_8cpp.html#a600eaf353befc174637855795f12d258">endl</a>;</div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span>}</div>
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</div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span></div>
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<div class="foldopen" id="foldopen00288" data-start="{" data-end="}">
|
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"><a class="line" href="../../df/d47/fcfs__scheduling_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4"> 288</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="../../df/d47/fcfs__scheduling_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>() {</div>
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<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> <a class="code hl_function" href="../../df/d47/fcfs__scheduling_8cpp.html#aa8dca7b867074164d5f45b0f3851269d">test</a>(); <span class="comment">// run self-test implementations</span></div>
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<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span>}</div>
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</div>
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<div class="ttc" id="aclass_compare_html"><div class="ttname"><a href="../../de/d4a/class_compare.html">Compare</a></div><div class="ttdoc">Comparator class for priority queue.</div><div class="ttdef"><b>Definition</b> <a href="#l00063">fcfs_scheduling.cpp:63</a></div></div>
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<div class="ttc" id="aclass_compare_html_afbdf9a44adb49728dc704155d7d1570c"><div class="ttname"><a href="../../de/d4a/class_compare.html#afbdf9a44adb49728dc704155d7d1570c">Compare::operator()</a></div><div class="ttdeci">bool operator()(tuple< S, T, E, double, double, double > &t1, tuple< S, T, E, double, double, double > &t2)</div><div class="ttdoc">A comparator function that checks whether to swap the two tuples or not. to https://www....</div><div class="ttdef"><b>Definition</b> <a href="#l00076">fcfs_scheduling.cpp:76</a></div></div>
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<div class="ttc" id="aclass_f_c_f_s_html"><div class="ttname"><a href="../../dd/dca/class_f_c_f_s.html">FCFS</a></div><div class="ttdoc">Class which implements the FCFS scheduling algorithm.</div><div class="ttdef"><b>Definition</b> <a href="#l00098">fcfs_scheduling.cpp:98</a></div></div>
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<div class="ttc" id="aclass_f_c_f_s_html_a8fbfe4d85f7576b4a7aade07d29fbd69"><div class="ttname"><a href="../../dd/dca/class_f_c_f_s.html#a8fbfe4d85f7576b4a7aade07d29fbd69">FCFS::addProcess</a></div><div class="ttdeci">void addProcess(S id, T arrival, E burst)</div><div class="ttdoc">Adds the process to the ready queue if it isn't already there.</div><div class="ttdef"><b>Definition</b> <a href="#l00130">fcfs_scheduling.cpp:130</a></div></div>
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<div class="ttc" id="aclass_f_c_f_s_html_aa25dbe30ba9930b5a7c1a6d11758bd91"><div class="ttname"><a href="../../dd/dca/class_f_c_f_s.html#aa25dbe30ba9930b5a7c1a6d11758bd91">FCFS::scheduleForFcfs</a></div><div class="ttdeci">vector< tuple< S, T, E, double, double, double > > scheduleForFcfs()</div><div class="ttdoc">Algorithm for scheduling CPU processes according to the First Come First Serve(FCFS) scheduling algor...</div><div class="ttdef"><b>Definition</b> <a href="#l00155">fcfs_scheduling.cpp:155</a></div></div>
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<div class="ttc" id="aclass_f_c_f_s_html_abb361a612b18bb189aa6d3c49288b793"><div class="ttname"><a href="../../dd/dca/class_f_c_f_s.html#abb361a612b18bb189aa6d3c49288b793">FCFS::printResult</a></div><div class="ttdeci">void printResult()</div><div class="ttdoc">Utility function for printing the status of each process after execution.</div><div class="ttdef"><b>Definition</b> <a href="#l00192">fcfs_scheduling.cpp:192</a></div></div>
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<div class="ttc" id="aclass_f_c_f_s_html_af2594e22a867b308e027623940193d46"><div class="ttname"><a href="../../dd/dca/class_f_c_f_s.html#af2594e22a867b308e027623940193d46">FCFS::schedule</a></div><div class="ttdeci">priority_queue< tuple< S, T, E, double, double, double >, vector< tuple< S, T, E, double, double, double > >, Compare< S, T, E > > schedule</div><div class="ttdef"><b>Definition</b> <a href="#l00112">fcfs_scheduling.cpp:112</a></div></div>
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<div class="ttc" id="afcfs__scheduling_8cpp_html_a18920aa331faf4476b251c8cdb2c2bec"><div class="ttname"><a href="../../df/d47/fcfs__scheduling_8cpp.html#a18920aa331faf4476b251c8cdb2c2bec">sortcol</a></div><div class="ttdeci">bool sortcol(tuple< S, T, E > &t1, tuple< S, T, E > &t2)</div><div class="ttdoc">Comparator function for sorting a vector.</div><div class="ttdef"><b>Definition</b> <a href="#l00046">fcfs_scheduling.cpp:46</a></div></div>
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<div class="ttc" id="afcfs__scheduling_8cpp_html_a8f2b90cb64d63a7080965e66a05ccf86"><div class="ttname"><a href="../../df/d47/fcfs__scheduling_8cpp.html#a8f2b90cb64d63a7080965e66a05ccf86">get_final_status</a></div><div class="ttdeci">vector< tuple< S, T, E, double, double, double > > get_final_status(vector< tuple< uint32_t, uint32_t, uint32_t > > input)</div><div class="ttdoc">Function to be used for testing purposes. This function guarantees the correct solution for FCFS sche...</div><div class="ttdef"><b>Definition</b> <a href="#l00226">fcfs_scheduling.cpp:226</a></div></div>
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<div class="ttc" id="afcfs__scheduling_8cpp_html_aa8dca7b867074164d5f45b0f3851269d"><div class="ttname"><a href="../../df/d47/fcfs__scheduling_8cpp.html#aa8dca7b867074164d5f45b0f3851269d">test</a></div><div class="ttdeci">static void test()</div><div class="ttdoc">Self-test implementations.</div><div class="ttdef"><b>Definition</b> <a href="#l00257">fcfs_scheduling.cpp:257</a></div></div>
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<div class="ttc" id="afcfs__scheduling_8cpp_html_ae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="../../df/d47/fcfs__scheduling_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a></div><div class="ttdeci">int main()</div><div class="ttdoc">Entry point of the program.</div><div class="ttdef"><b>Definition</b> <a href="#l00288">fcfs_scheduling.cpp:288</a></div></div>
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<div class="ttc" id="amatrix__exponentiation_8cpp_html_a600eaf353befc174637855795f12d258"><div class="ttname"><a href="../../d7/d35/matrix__exponentiation_8cpp.html#a600eaf353befc174637855795f12d258">endl</a></div><div class="ttdeci">#define endl</div><div class="ttdef"><b>Definition</b> <a href="../../d7/d35/matrix__exponentiation_8cpp_source.html#l00036">matrix_exponentiation.cpp:36</a></div></div>
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