mirror of
https://github.com/TheAlgorithms/C-Plus-Plus.git
synced 2026-03-22 21:01:50 +08:00
443 lines
34 KiB
HTML
443 lines
34 KiB
HTML
<!-- HTML header for doxygen 1.12.0-->
|
|
<!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" lang="en-US">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=11"/>
|
|
<meta name="generator" content="Doxygen 1.14.0"/>
|
|
<meta name="viewport" content="width=device-width, initial-scale=1"/>
|
|
<title>TheAlgorithms/C++: SJF< S, T, E > Class Template Reference</title>
|
|
<link rel="icon" href="../../favicon.svg" type="image/x-icon" />
|
|
<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>
|
|
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/@xpack-3rd-party/doxygen-awesome-css@2.2.0-1/doxygen-awesome-darkmode-toggle.js"></script>
|
|
<script type="text/javascript">
|
|
DoxygenAwesomeDarkModeToggle.init()
|
|
</script>
|
|
<script type="text/javascript" src="../../clipboard.js"></script>
|
|
<link href="../../navtree.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="../../navtreedata.js"></script>
|
|
<script type="text/javascript" src="../../navtree.js"></script>
|
|
<script type="text/javascript" src="../../cookie.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>
|
|
<script type="text/javascript">
|
|
window.MathJax = {
|
|
options: {
|
|
ignoreHtmlClass: 'tex2jax_ignore',
|
|
processHtmlClass: 'tex2jax_process'
|
|
},
|
|
loader: {
|
|
load: ['[tex]/ams']
|
|
},
|
|
tex: {
|
|
macros: {},
|
|
packages: ['base','configmacros','ams']
|
|
}
|
|
};
|
|
</script>
|
|
<script type="text/javascript" id="MathJax-script" async="async" src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-chtml.js"></script>
|
|
<link href="../../doxygen.css" rel="stylesheet" type="text/css" />
|
|
<link href="../../doxygen-awesome.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 id="projectrow">
|
|
<td id="projectlogo"><img alt="Logo" src="../../project_logo.png"/></td>
|
|
<td id="projectalign">
|
|
<div id="projectname">TheAlgorithms/C++<span id="projectnumber"> 1.0.0</span>
|
|
</div>
|
|
<div id="projectbrief">All the algorithms implemented in C++</div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<!-- end header part -->
|
|
<!-- Generated by Doxygen 1.14.0 -->
|
|
<script type="text/javascript">
|
|
var searchBox = new SearchBox("searchBox", "../../search/",'.html');
|
|
</script>
|
|
<script type="text/javascript">
|
|
$(function() { codefold.init(); });
|
|
</script>
|
|
<script type="text/javascript" src="../../menudata.js"></script>
|
|
<script type="text/javascript" src="../../menu.js"></script>
|
|
<script type="text/javascript">
|
|
$(function() {
|
|
initMenu('../../',true,false,'search.php','Search',true);
|
|
$(function() { init_search(); });
|
|
});
|
|
</script>
|
|
<div id="main-nav"></div>
|
|
</div><!-- top -->
|
|
<div id="side-nav" class="ui-resizable side-nav-resizable">
|
|
<div id="nav-tree">
|
|
<div id="nav-tree-contents">
|
|
<div id="nav-sync" class="sync"></div>
|
|
</div>
|
|
</div>
|
|
<div id="splitbar" style="-moz-user-select:none;"
|
|
class="ui-resizable-handle">
|
|
</div>
|
|
</div>
|
|
<script type="text/javascript">
|
|
$(function(){initNavTree('d7/d9f/class_s_j_f.html','../../','d9/de5/class_s_j_f-members'); });
|
|
</script>
|
|
<div id="container">
|
|
<div id="doc-content">
|
|
<!-- 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">
|
|
<div id="MSearchResults">
|
|
<div class="SRPage">
|
|
<div id="SRIndex">
|
|
<div id="SRResults"></div>
|
|
<div class="SRStatus" id="Loading">Loading...</div>
|
|
<div class="SRStatus" id="Searching">Searching...</div>
|
|
<div class="SRStatus" id="NoMatches">No Matches</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="header">
|
|
<div class="headertitle"><div class="title">SJF< S, T, E > Class Template Reference</div></div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
|
|
<p>Class which implements the <a class="el" href="../../d7/d9f/class_s_j_f.html" title="Class which implements the SJF scheduling algorithm.">SJF</a> scheduling algorithm.
|
|
<a href="#details">More...</a></p>
|
|
<table class="memberdecls">
|
|
<tr class="heading"><td colspan="2"><h2 id="header-pub-methods" class="groupheader"><a id="pub-methods" name="pub-methods"></a>
|
|
Public Member Functions</h2></td></tr>
|
|
<tr class="memitem:af73fe815835075184724a13c12f613ed" id="r_af73fe815835075184724a13c12f613ed"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="#af73fe815835075184724a13c12f613ed">addProcess</a> (S id, T arrival, E burst)</td></tr>
|
|
<tr class="memdesc:af73fe815835075184724a13c12f613ed"><td class="mdescLeft"> </td><td class="mdescRight">Adds the process to the ready queue if it isn't already there. <br /></td></tr>
|
|
<tr class="memitem:a61b76afcc94e573d7232ab51c351fd30" id="r_a61b76afcc94e573d7232ab51c351fd30"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d7/dfc/classvector.html">vector</a>< tuple< S, T, E, double, double, double > > </td><td class="memItemRight" valign="bottom"><a class="el" href="#a61b76afcc94e573d7232ab51c351fd30">scheduleForSJF</a> ()</td></tr>
|
|
<tr class="memdesc:a61b76afcc94e573d7232ab51c351fd30"><td class="mdescLeft"> </td><td class="mdescRight">Algorithm for scheduling CPU processes according to the Shortest Job First (<a class="el" href="../../d7/d9f/class_s_j_f.html" title="Class which implements the SJF scheduling algorithm.">SJF</a>) scheduling algorithm. <br /></td></tr>
|
|
<tr class="memitem:a42d7016523e3adfe5b946fab18ce7905" id="r_a42d7016523e3adfe5b946fab18ce7905"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="#a42d7016523e3adfe5b946fab18ce7905">printResult</a> (const <a class="el" href="../../d7/dfc/classvector.html">vector</a>< tuple< S, T, E, double, double, double > > &processes)</td></tr>
|
|
<tr class="memdesc:a42d7016523e3adfe5b946fab18ce7905"><td class="mdescLeft"> </td><td class="mdescRight">Utility function for printing the status of each process after execution. <br /></td></tr>
|
|
</table><table class="memberdecls">
|
|
<tr class="heading"><td colspan="2"><h2 id="header-pri-attribs" class="groupheader"><a id="pri-attribs" name="pri-attribs"></a>
|
|
Private Attributes</h2></td></tr>
|
|
<tr class="memitem:ac86d31ea081e671adeb82b3f92376fea" id="r_ac86d31ea081e671adeb82b3f92376fea"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d1/d1b/classpriority__queue.html">priority_queue</a>< tuple< S, T, E, double, double, double >, <a class="el" href="../../d7/dfc/classvector.html">vector</a>< tuple< S, T, E, double, double, double > >, <a class="el" href="../../de/d4a/class_compare.html">Compare</a>< S, T, E > > </td><td class="memItemRight" valign="bottom"><a class="el" href="#ac86d31ea081e671adeb82b3f92376fea">schedule</a></td></tr>
|
|
<tr class="memitem:a9a6516fba2ce58331eea17b7292f11b8" id="r_a9a6516fba2ce58331eea17b7292f11b8"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d7/dfc/classvector.html">vector</a>< tuple< S, T, E, double, double, double > > </td><td class="memItemRight" valign="bottom"><a class="el" href="#a9a6516fba2ce58331eea17b7292f11b8">result</a></td></tr>
|
|
<tr class="memitem:a398475ed7fe2671fe42b9b57d5866916" id="r_a398475ed7fe2671fe42b9b57d5866916"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d3/d6d/classunordered__set.html">unordered_set</a>< S > </td><td class="memItemRight" valign="bottom"><a class="el" href="#a398475ed7fe2671fe42b9b57d5866916">idList</a></td></tr>
|
|
</table>
|
|
<a name="details" id="details"></a><h2 id="header-details" class="groupheader">Detailed Description</h2>
|
|
<div class="textblock"><div class="compoundTemplParams">template<typename S, typename T, typename E><br />
|
|
class SJF< S, T, E ></div><p>Class which implements the <a class="el" href="../../d7/d9f/class_s_j_f.html" title="Class which implements the SJF scheduling algorithm.">SJF</a> scheduling algorithm. </p>
|
|
<dl class="tparams"><dt>Template Parameters</dt><dd>
|
|
<table class="tparams">
|
|
<tr><td class="paramname">S</td><td>Data type of Process ID </td></tr>
|
|
<tr><td class="paramname">T</td><td>Data type of Arrival time </td></tr>
|
|
<tr><td class="paramname">E</td><td>Data type of Burst time </td></tr>
|
|
</table>
|
|
</dd>
|
|
</dl>
|
|
|
|
<p class="definition">Definition at line <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html#l00096">96</a> of file <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html">non_preemptive_sjf_scheduling.cpp</a>.</p>
|
|
</div><a name="doc-func-members" id="doc-func-members"></a><h2 id="header-doc-func-members" class="groupheader">Member Function Documentation</h2>
|
|
<a id="af73fe815835075184724a13c12f613ed" name="af73fe815835075184724a13c12f613ed"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#af73fe815835075184724a13c12f613ed">◆ </a></span>addProcess()</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<div class="memtemplate">
|
|
template<typename S, typename T, typename E> </div>
|
|
<table class="mlabels">
|
|
<tr>
|
|
<td class="mlabels-left">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">void <a class="el" href="../../d7/d9f/class_s_j_f.html">SJF</a>< S, T, E >::addProcess </td>
|
|
<td>(</td>
|
|
<td class="paramtype">S</td> <td class="paramname"><span class="paramname"><em>id</em></span>, </td>
|
|
</tr>
|
|
<tr>
|
|
<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype">T</td> <td class="paramname"><span class="paramname"><em>arrival</em></span>, </td>
|
|
</tr>
|
|
<tr>
|
|
<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype">E</td> <td class="paramname"><span class="paramname"><em>burst</em></span> )</td>
|
|
</tr>
|
|
</table>
|
|
</td>
|
|
<td class="mlabels-right">
|
|
<span class="mlabels"><span class="mlabel inline">inline</span></span> </td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
<p>Adds the process to the ready queue if it isn't already there. </p>
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
|
<table class="params">
|
|
<tr><td class="paramname">id</td><td>Process ID </td></tr>
|
|
<tr><td class="paramname">arrival</td><td>Arrival time of the process </td></tr>
|
|
<tr><td class="paramname">burst</td><td>Burst time of the process </td></tr>
|
|
</table>
|
|
</dd>
|
|
</dl>
|
|
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
|
|
|
|
<p class="definition">Definition at line <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html#l00127">127</a> of file <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html">non_preemptive_sjf_scheduling.cpp</a>.</p>
|
|
<div class="fragment"><div class="line"><span class="lineno"> 127</span> {</div>
|
|
<div class="line"><span class="lineno"> 128</span> <span class="comment">// Add if a process with process ID as id is not found in idList.</span></div>
|
|
<div class="line"><span class="lineno"> 129</span> <span class="keywordflow">if</span> (idList.find(<span class="keywordtype">id</span>) == idList.end()) {</div>
|
|
<div class="line"><span class="lineno"> 130</span> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">tuple<S, T, E, double, double, double></a> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">t</a> =</div>
|
|
<div class="line"><span class="lineno"> 131</span> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">make_tuple</a>(<span class="keywordtype">id</span>, <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">arrival</a>, <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">burst</a>, 0, 0, 0);</div>
|
|
<div class="line"><span class="lineno"> 132</span> <a class="code hl_variable" href="#ac86d31ea081e671adeb82b3f92376fea">schedule</a>.push(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">t</a>);</div>
|
|
<div class="line"><span class="lineno"> 133</span> idList.insert(<span class="keywordtype">id</span>);</div>
|
|
<div class="line"><span class="lineno"> 134</span> }</div>
|
|
<div class="line"><span class="lineno"> 135</span> }</div>
|
|
<div class="ttc" id="aclass_s_j_f_html"><div class="ttname"><a href="../../d7/d9f/class_s_j_f.html">SJF</a></div><div class="ttdoc">Class which implements the SJF scheduling algorithm.</div><div class="ttdef"><b>Definition</b> <a href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html#l00096">non_preemptive_sjf_scheduling.cpp:96</a></div></div>
|
|
<div class="ttc" id="aclass_s_j_f_html_ac86d31ea081e671adeb82b3f92376fea"><div class="ttname"><a href="#ac86d31ea081e671adeb82b3f92376fea">SJF::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="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html#l00110">non_preemptive_sjf_scheduling.cpp:110</a></div></div>
|
|
</div><!-- fragment -->
|
|
</div>
|
|
</div>
|
|
<a id="a42d7016523e3adfe5b946fab18ce7905" name="a42d7016523e3adfe5b946fab18ce7905"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#a42d7016523e3adfe5b946fab18ce7905">◆ </a></span>printResult()</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<div class="memtemplate">
|
|
template<typename S, typename T, typename E> </div>
|
|
<table class="mlabels">
|
|
<tr>
|
|
<td class="mlabels-left">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">void <a class="el" href="../../d7/d9f/class_s_j_f.html">SJF</a>< S, T, E >::printResult </td>
|
|
<td>(</td>
|
|
<td class="paramtype">const <a class="el" href="../../d7/dfc/classvector.html">vector</a>< tuple< S, T, E, double, double, double > > &</td> <td class="paramname"><span class="paramname"><em>processes</em></span></td><td>)</td>
|
|
<td></td>
|
|
</tr>
|
|
</table>
|
|
</td>
|
|
<td class="mlabels-right">
|
|
<span class="mlabels"><span class="mlabel inline">inline</span></span> </td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
<p>Utility function for printing the status of each process after execution. </p>
|
|
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
|
|
|
|
<p class="definition">Definition at line <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html#l00197">197</a> of file <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html">non_preemptive_sjf_scheduling.cpp</a>.</p>
|
|
<div class="fragment"><div class="line"><span class="lineno"> 198</span> {</div>
|
|
<div class="line"><span class="lineno"> 199</span> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cout</a> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::setw</a>(17) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">left</a> << <span class="stringliteral">"Process ID"</span> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::setw</a>(17) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">left</a></div>
|
|
<div class="line"><span class="lineno"> 200</span> << <span class="stringliteral">"Arrival Time"</span> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::setw</a>(17) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">left</a> << <span class="stringliteral">"Burst Time"</span></div>
|
|
<div class="line"><span class="lineno"> 201</span> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::setw</a>(17) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">left</a> << <span class="stringliteral">"Completion Time"</span> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::setw</a>(17)</div>
|
|
<div class="line"><span class="lineno"> 202</span> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">left</a> << <span class="stringliteral">"Turnaround Time"</span> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::setw</a>(17) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">left</a></div>
|
|
<div class="line"><span class="lineno"> 203</span> << <span class="stringliteral">"Waiting Time"</span> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">endl</a>;</div>
|
|
<div class="line"><span class="lineno"> 204</span> </div>
|
|
<div class="line"><span class="lineno"> 205</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">process</a> : <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">processes</a>) {</div>
|
|
<div class="line"><span class="lineno"> 206</span> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cout</a> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::setprecision</a>(2) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::fixed</a> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::setw</a>(17) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">left</a></div>
|
|
<div class="line"><span class="lineno"> 207</span> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<0></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">process</a>) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::setw</a>(17) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">left << get<1></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">process</a>)</div>
|
|
<div class="line"><span class="lineno"> 208</span> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::setw</a>(17) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">left << get<2></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">process</a>) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::setw</a>(17)</div>
|
|
<div class="line"><span class="lineno"> 209</span> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">left << get<3></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">process</a>) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::setw</a>(17) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">left</a></div>
|
|
<div class="line"><span class="lineno"> 210</span> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<4></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">process</a>) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">std::setw</a>(17) << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">left << get<5></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">process</a>)</div>
|
|
<div class="line"><span class="lineno"> 211</span> << <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">endl</a>;</div>
|
|
<div class="line"><span class="lineno"> 212</span> }</div>
|
|
<div class="line"><span class="lineno"> 213</span> }</div>
|
|
</div><!-- fragment -->
|
|
</div>
|
|
</div>
|
|
<a id="a61b76afcc94e573d7232ab51c351fd30" name="a61b76afcc94e573d7232ab51c351fd30"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#a61b76afcc94e573d7232ab51c351fd30">◆ </a></span>scheduleForSJF()</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<div class="memtemplate">
|
|
template<typename S, typename T, typename E> </div>
|
|
<table class="mlabels">
|
|
<tr>
|
|
<td class="mlabels-left">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname"><a class="el" href="../../d7/dfc/classvector.html">vector</a>< tuple< S, T, E, double, double, double > > <a class="el" href="../../d7/d9f/class_s_j_f.html">SJF</a>< S, T, E >::scheduleForSJF </td>
|
|
<td>(</td>
|
|
<td class="paramname"><span class="paramname"><em></em></span></td><td>)</td>
|
|
<td></td>
|
|
</tr>
|
|
</table>
|
|
</td>
|
|
<td class="mlabels-right">
|
|
<span class="mlabels"><span class="mlabel inline">inline</span></span> </td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
<p>Algorithm for scheduling CPU processes according to the Shortest Job First (<a class="el" href="../../d7/d9f/class_s_j_f.html" title="Class which implements the SJF scheduling algorithm.">SJF</a>) scheduling algorithm. </p>
|
|
<p>Non pre-emptive <a class="el" href="../../d7/d9f/class_s_j_f.html" title="Class which implements the SJF scheduling algorithm.">SJF</a> is an algorithm that schedules processes based on the length of their burst times. The process with the smallest burst time is executed first.In a non-preemptive scheduling algorithm, once a process starts executing,it runs to completion without being interrupted.</p>
|
|
<p>I used a min priority queue because it allows you to efficiently pick the process with the smallest burst time in constant time, by maintaining a priority order where the shortest burst process is always at the front.</p>
|
|
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
|
|
|
|
<p class="definition">Definition at line <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html#l00154">154</a> of file <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html">non_preemptive_sjf_scheduling.cpp</a>.</p>
|
|
<div class="fragment"><div class="line"><span class="lineno"> 154</span> {</div>
|
|
<div class="line"><span class="lineno"> 155</span> <span class="comment">// Variable to keep track of time elapsed so far</span></div>
|
|
<div class="line"><span class="lineno"> 156</span> <span class="keywordtype">double</span> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">timeElapsed</a> = 0;</div>
|
|
<div class="line"><span class="lineno"> 157</span> </div>
|
|
<div class="line"><span class="lineno"> 158</span> <span class="keywordflow">while</span> (!<a class="code hl_variable" href="#ac86d31ea081e671adeb82b3f92376fea">schedule</a>.empty()) {</div>
|
|
<div class="line"><span class="lineno"> 159</span> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">tuple<S, T, E, double, double, double></a> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a> = <a class="code hl_variable" href="#ac86d31ea081e671adeb82b3f92376fea">schedule</a>.top();</div>
|
|
<div class="line"><span class="lineno"> 160</span> </div>
|
|
<div class="line"><span class="lineno"> 161</span> <span class="comment">// If the current process arrived at time t2, the last process</span></div>
|
|
<div class="line"><span class="lineno"> 162</span> <span class="comment">// completed its execution at time t1, and t2 > t1.</span></div>
|
|
<div class="line"><span class="lineno"> 163</span> <span class="keywordflow">if</span> (<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<1></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>) > <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">timeElapsed</a>) {</div>
|
|
<div class="line"><span class="lineno"> 164</span> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">timeElapsed</a> += <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<1></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>) - <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">timeElapsed</a>;</div>
|
|
<div class="line"><span class="lineno"> 165</span> }</div>
|
|
<div class="line"><span class="lineno"> 166</span> </div>
|
|
<div class="line"><span class="lineno"> 167</span> <span class="comment">// Add Burst time to time elapsed</span></div>
|
|
<div class="line"><span class="lineno"> 168</span> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">timeElapsed</a> += <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<2></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>);</div>
|
|
<div class="line"><span class="lineno"> 169</span> </div>
|
|
<div class="line"><span class="lineno"> 170</span> <span class="comment">// Completion time of the current process will be same as time</span></div>
|
|
<div class="line"><span class="lineno"> 171</span> <span class="comment">// elapsed so far</span></div>
|
|
<div class="line"><span class="lineno"> 172</span> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<3></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>) = <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">timeElapsed</a>;</div>
|
|
<div class="line"><span class="lineno"> 173</span> </div>
|
|
<div class="line"><span class="lineno"> 174</span> <span class="comment">// Turnaround time = Completion time - Arrival time</span></div>
|
|
<div class="line"><span class="lineno"> 175</span> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<4></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>) = <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<3></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>) - <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<1></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>);</div>
|
|
<div class="line"><span class="lineno"> 176</span> </div>
|
|
<div class="line"><span class="lineno"> 177</span> <span class="comment">// Waiting time = Turnaround time - Burst time</span></div>
|
|
<div class="line"><span class="lineno"> 178</span> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<5></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>) = <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<4></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>) - <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<2></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>);</div>
|
|
<div class="line"><span class="lineno"> 179</span> </div>
|
|
<div class="line"><span class="lineno"> 180</span> <span class="comment">// Turnaround time >= Burst time</span></div>
|
|
<div class="line"><span class="lineno"> 181</span> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">assert</a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<4></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>) >= <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<2></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>));</div>
|
|
<div class="line"><span class="lineno"> 182</span> </div>
|
|
<div class="line"><span class="lineno"> 183</span> <span class="comment">// Waiting time is never negative</span></div>
|
|
<div class="line"><span class="lineno"> 184</span> <a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">assert</a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">get<5></a>(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>) >= 0);</div>
|
|
<div class="line"><span class="lineno"> 185</span> </div>
|
|
<div class="line"><span class="lineno"> 186</span> result.push_back(<a class="code hl_class" href="../../d7/d9f/class_s_j_f.html">cur</a>);</div>
|
|
<div class="line"><span class="lineno"> 187</span> <a class="code hl_variable" href="#ac86d31ea081e671adeb82b3f92376fea">schedule</a>.pop();</div>
|
|
<div class="line"><span class="lineno"> 188</span> }</div>
|
|
<div class="line"><span class="lineno"> 189</span> <span class="keywordflow">return</span> result;</div>
|
|
<div class="line"><span class="lineno"> 190</span> }</div>
|
|
</div><!-- fragment -->
|
|
</div>
|
|
</div>
|
|
<a name="doc-variable-members" id="doc-variable-members"></a><h2 id="header-doc-variable-members" class="groupheader">Member Data Documentation</h2>
|
|
<a id="a398475ed7fe2671fe42b9b57d5866916" name="a398475ed7fe2671fe42b9b57d5866916"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#a398475ed7fe2671fe42b9b57d5866916">◆ </a></span>idList</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<div class="memtemplate">
|
|
template<typename S, typename T, typename E> </div>
|
|
<table class="mlabels">
|
|
<tr>
|
|
<td class="mlabels-left">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname"><a class="el" href="../../d3/d6d/classunordered__set.html">unordered_set</a><S> <a class="el" href="../../d7/d9f/class_s_j_f.html">SJF</a>< S, T, E >::idList</td>
|
|
</tr>
|
|
</table>
|
|
</td>
|
|
<td class="mlabels-right">
|
|
<span class="mlabels"><span class="mlabel private">private</span></span> </td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
<p class="definition">Definition at line <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html#l00116">116</a> of file <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html">non_preemptive_sjf_scheduling.cpp</a>.</p>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="a9a6516fba2ce58331eea17b7292f11b8" name="a9a6516fba2ce58331eea17b7292f11b8"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#a9a6516fba2ce58331eea17b7292f11b8">◆ </a></span>result</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<div class="memtemplate">
|
|
template<typename S, typename T, typename E> </div>
|
|
<table class="mlabels">
|
|
<tr>
|
|
<td class="mlabels-left">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname"><a class="el" href="../../d7/dfc/classvector.html">vector</a><tuple<S, T, E, double, double, double> > <a class="el" href="../../d7/d9f/class_s_j_f.html">SJF</a>< S, T, E >::result</td>
|
|
</tr>
|
|
</table>
|
|
</td>
|
|
<td class="mlabels-right">
|
|
<span class="mlabels"><span class="mlabel private">private</span></span> </td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
<p class="definition">Definition at line <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html#l00113">113</a> of file <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html">non_preemptive_sjf_scheduling.cpp</a>.</p>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ac86d31ea081e671adeb82b3f92376fea" name="ac86d31ea081e671adeb82b3f92376fea"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ac86d31ea081e671adeb82b3f92376fea">◆ </a></span>schedule</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<div class="memtemplate">
|
|
template<typename S, typename T, typename E> </div>
|
|
<table class="mlabels">
|
|
<tr>
|
|
<td class="mlabels-left">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname"><a class="el" href="../../d1/d1b/classpriority__queue.html">priority_queue</a><tuple<S, T, E, double, double, double>, <a class="el" href="../../d7/dfc/classvector.html">vector</a><tuple<S, T, E, double, double, double> >, <a class="el" href="../../de/d4a/class_compare.html">Compare</a><S, T, E> > <a class="el" href="../../d7/d9f/class_s_j_f.html">SJF</a>< S, T, E >::schedule</td>
|
|
</tr>
|
|
</table>
|
|
</td>
|
|
<td class="mlabels-right">
|
|
<span class="mlabels"><span class="mlabel private">private</span></span> </td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<p>Priority queue of schedules(stored as tuples) of processes. In each tuple </p><dl class="tparams"><dt>Template Parameters</dt><dd>
|
|
<table class="tparams">
|
|
<tr><td class="paramname">1st</td><td>element: Process ID </td></tr>
|
|
<tr><td class="paramname">2nd</td><td>element: Arrival Time </td></tr>
|
|
<tr><td class="paramname">3rd</td><td>element: Burst time </td></tr>
|
|
<tr><td class="paramname">4th</td><td>element: Completion time </td></tr>
|
|
<tr><td class="paramname">5th</td><td>element: Turnaround time </td></tr>
|
|
<tr><td class="paramname">6th</td><td>element: Waiting time </td></tr>
|
|
</table>
|
|
</dd>
|
|
</dl>
|
|
|
|
<p class="definition">Definition at line <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html#l00110">110</a> of file <a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html">non_preemptive_sjf_scheduling.cpp</a>.</p>
|
|
|
|
</div>
|
|
</div>
|
|
<hr/>The documentation for this class was generated from the following file:<ul>
|
|
<li>cpu_scheduling_algorithms/<a class="el" href="../../d7/d1a/non__preemptive__sjf__scheduling_8cpp_source.html">non_preemptive_sjf_scheduling.cpp</a></li>
|
|
</ul>
|
|
</div><!-- contents -->
|
|
</div><!-- doc-content -->
|
|
<div id="page-nav" class="page-nav-panel">
|
|
<div id="page-nav-resize-handle"></div>
|
|
<div id="page-nav-tree">
|
|
<div id="page-nav-contents">
|
|
</div><!-- page-nav-contents -->
|
|
</div><!-- page-nav-tree -->
|
|
</div><!-- page-nav -->
|
|
</div><!-- container -->
|
|
<!-- start footer part -->
|
|
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
|
|
<ul>
|
|
<li class="navelem"><a href="../../d7/d9f/class_s_j_f.html">SJF</a></li>
|
|
<li class="footer">Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="../../doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.14.0 </li>
|
|
</ul>
|
|
</div>
|
|
</body>
|
|
</html>
|