-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathanalyzer_8c.html
More file actions
166 lines (161 loc) · 11.4 KB
/
analyzer_8c.html
File metadata and controls
166 lines (161 loc) · 11.4 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
<!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 1.9.6"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>CPU Usage Tracker: analyzer.c File Reference</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr id="projectrow">
<td id="projectalign">
<div id="projectname">CPU Usage Tracker<span id="projectnumber"> 1.0</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.9.6 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */
var searchBox = new SearchBox("searchBox", "search/",'.html');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
/* @license-end */
</script>
<div id="main-nav"></div>
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<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><!-- top -->
<div class="header">
<div class="summary">
<a href="#func-members">Functions</a> </div>
<div class="headertitle"><div class="title">analyzer.c File Reference</div></div>
</div><!--header-->
<div class="contents">
<div class="textblock"><code>#include "analyzer.h"</code><br />
</div>
<p><a href="analyzer_8c_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a60d1e2bdc5c39558234c421a071d6f1c"><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="analyzer_8c.html#a60d1e2bdc5c39558234c421a071d6f1c">analyzer</a> (void *arg)</td></tr>
<tr class="memdesc:a60d1e2bdc5c39558234c421a071d6f1c"><td class="mdescLeft"> </td><td class="mdescRight">Analyzer function. <br /></td></tr>
<tr class="separator:a60d1e2bdc5c39558234c421a071d6f1c"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<h2 class="groupheader">Function Documentation</h2>
<a id="a60d1e2bdc5c39558234c421a071d6f1c" name="a60d1e2bdc5c39558234c421a071d6f1c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a60d1e2bdc5c39558234c421a071d6f1c">◆ </a></span>analyzer()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void * analyzer </td>
<td>(</td>
<td class="paramtype">void * </td>
<td class="paramname"><em>arg</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Analyzer function. </p>
<p>The Analyzer is responsible for taking data from the buffer and processing it into % CPU usage. </p>
<p class="definition">Definition at line <a class="el" href="analyzer_8c_source.html#l00035">35</a> of file <a class="el" href="analyzer_8c_source.html">analyzer.c</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 35</span> {</div>
<div class="line"><span class="lineno"> 36</span> <span class="keyword">struct </span><a class="code hl_struct" href="structproc__stat.html">proc_stat</a> *prev;</div>
<div class="line"><span class="lineno"> 37</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> *avg;</div>
<div class="line"><span class="lineno"> 38</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> *bufforAvg;</div>
<div class="line"><span class="lineno"> 39</span> <span class="keyword">struct </span><a class="code hl_struct" href="structproc__stat.html">proc_stat</a> *stats;</div>
<div class="line"><span class="lineno"> 40</span> </div>
<div class="line"><span class="lineno"> 41</span> (void)arg;</div>
<div class="line"><span class="lineno"> 42</span> </div>
<div class="line"><span class="lineno"> 43</span> <span class="keywordflow">if</span> ((prev = malloc((<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)g_nproc * <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="structproc__stat.html">proc_stat</a>))) ==</div>
<div class="line"><span class="lineno"> 44</span> NULL) {</div>
<div class="line"><span class="lineno"> 45</span> <span class="keywordflow">return</span> NULL;</div>
<div class="line"><span class="lineno"> 46</span> }</div>
<div class="line"><span class="lineno"> 47</span> <span class="keywordflow">if</span> ((avg = malloc((<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)g_nproc * <span class="keyword">sizeof</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>))) == NULL) {</div>
<div class="line"><span class="lineno"> 48</span> free(prev);</div>
<div class="line"><span class="lineno"> 49</span> <span class="keywordflow">return</span> NULL;</div>
<div class="line"><span class="lineno"> 50</span> }</div>
<div class="line"><span class="lineno"> 51</span> pthread_cleanup_push(free, prev) pthread_cleanup_push(free, avg) <span class="keywordflow">while</span> (1) {</div>
<div class="line"><span class="lineno"> 52</span> <a class="code hl_function" href="cputracker_8c.html#ac99b6069bf629214ce6258902739d613">notify_watchdog</a>(Analyzer);</div>
<div class="line"><span class="lineno"> 53</span> </div>
<div class="line"><span class="lineno"> 54</span> sem_wait(&g_dataFilledSpaceSemaphore);</div>
<div class="line"><span class="lineno"> 55</span> pthread_mutex_lock(&g_dataBufferMutex);</div>
<div class="line"><span class="lineno"> 56</span> </div>
<div class="line"><span class="lineno"> 57</span> stats = <a class="code hl_function" href="cputracker_8c.html#a6d7b4993bb9144e4cab9f9c7420c996a">get_item_from_data_buffer</a>();</div>
<div class="line"><span class="lineno"> 58</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < g_nproc; i++) {</div>
<div class="line"><span class="lineno"> 59</span> avg[i] = cpu_usage(prev[i], stats[i]);</div>
<div class="line"><span class="lineno"> 60</span> prev[i] = stats[i];</div>
<div class="line"><span class="lineno"> 61</span> }</div>
<div class="line"><span class="lineno"> 62</span> </div>
<div class="line"><span class="lineno"> 63</span> pthread_mutex_unlock(&g_dataBufferMutex);</div>
<div class="line"><span class="lineno"> 64</span> sem_post(&g_dataLeftSpaceSemaphore);</div>
<div class="line"><span class="lineno"> 65</span> </div>
<div class="line"><span class="lineno"> 66</span> <span class="comment">//</span></div>
<div class="line"><span class="lineno"> 67</span> </div>
<div class="line"><span class="lineno"> 68</span> sem_wait(&g_printLeftSpaceSemaphore);</div>
<div class="line"><span class="lineno"> 69</span> pthread_mutex_lock(&g_printBufferMutex);</div>
<div class="line"><span class="lineno"> 70</span> </div>
<div class="line"><span class="lineno"> 71</span> bufforAvg = <a class="code hl_function" href="cputracker_8c.html#a2b8f2341417ff6536dcfd85113bd3a5d">get_item_from_print_buffer</a>();</div>
<div class="line"><span class="lineno"> 72</span> memcpy(bufforAvg, avg, (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)g_nproc * <span class="keyword">sizeof</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>));</div>
<div class="line"><span class="lineno"> 73</span> </div>
<div class="line"><span class="lineno"> 74</span> pthread_mutex_unlock(&g_printBufferMutex);</div>
<div class="line"><span class="lineno"> 75</span> sem_post(&g_printFilledSpaceSemaphore);</div>
<div class="line"><span class="lineno"> 76</span> }</div>
<div class="line"><span class="lineno"> 77</span> pthread_cleanup_pop(1);</div>
<div class="line"><span class="lineno"> 78</span> pthread_cleanup_pop(1);</div>
<div class="line"><span class="lineno"> 79</span>}</div>
<div class="ttc" id="acputracker_8c_html_a2b8f2341417ff6536dcfd85113bd3a5d"><div class="ttname"><a href="cputracker_8c.html#a2b8f2341417ff6536dcfd85113bd3a5d">get_item_from_print_buffer</a></div><div class="ttdeci">unsigned long * get_item_from_print_buffer(void)</div><div class="ttdoc">Function getting item from print buffer.</div><div class="ttdef"><b>Definition:</b> <a href="cputracker_8c_source.html#l00079">cputracker.c:79</a></div></div>
<div class="ttc" id="acputracker_8c_html_a6d7b4993bb9144e4cab9f9c7420c996a"><div class="ttname"><a href="cputracker_8c.html#a6d7b4993bb9144e4cab9f9c7420c996a">get_item_from_data_buffer</a></div><div class="ttdeci">struct proc_stat * get_item_from_data_buffer(void)</div><div class="ttdoc">Function getting item from data buffer.</div><div class="ttdef"><b>Definition:</b> <a href="cputracker_8c_source.html#l00069">cputracker.c:69</a></div></div>
<div class="ttc" id="acputracker_8c_html_ac99b6069bf629214ce6258902739d613"><div class="ttname"><a href="cputracker_8c.html#ac99b6069bf629214ce6258902739d613">notify_watchdog</a></div><div class="ttdeci">void notify_watchdog(int id)</div><div class="ttdoc">Notify the watchdog that thread is alive.</div><div class="ttdef"><b>Definition:</b> <a href="cputracker_8c_source.html#l00089">cputracker.c:89</a></div></div>
<div class="ttc" id="astructproc__stat_html"><div class="ttname"><a href="structproc__stat.html">proc_stat</a></div><div class="ttdoc">Struct for /proc/stats info.</div><div class="ttdef"><b>Definition:</b> <a href="cputracker_8h_source.html#l00030">cputracker.h:30</a></div></div>
</div><!-- fragment -->
</div>
</div>
</div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.6
</small></address>
</body>
</html>