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<a href="#libgtop-proctime.description" class="shortcut">Description</a>
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<div class="refentry">
<a name="libgtop-proctime"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="libgtop-proctime.top_of_page"></a>proctime</span></h2>
<p>proctime</p>
</td>
<td valign="top" align="right"></td>
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<div class="refsynopsisdiv">
<a name="libgtop-proctime.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include <glibtop/proctime.h>
#define <a class="link" href="libgtop-proctime.html#GLIBTOP-PROC-TIME-START-TIME:CAPS" title="GLIBTOP_PROC_TIME_START_TIME">GLIBTOP_PROC_TIME_START_TIME</a>
#define <a class="link" href="libgtop-proctime.html#GLIBTOP-PROC-TIME-RTIME:CAPS" title="GLIBTOP_PROC_TIME_RTIME">GLIBTOP_PROC_TIME_RTIME</a>
#define <a class="link" href="libgtop-proctime.html#GLIBTOP-PROC-TIME-UTIME:CAPS" title="GLIBTOP_PROC_TIME_UTIME">GLIBTOP_PROC_TIME_UTIME</a>
#define <a class="link" href="libgtop-proctime.html#GLIBTOP-PROC-TIME-STIME:CAPS" title="GLIBTOP_PROC_TIME_STIME">GLIBTOP_PROC_TIME_STIME</a>
#define <a class="link" href="libgtop-proctime.html#GLIBTOP-PROC-TIME-CUTIME:CAPS" title="GLIBTOP_PROC_TIME_CUTIME">GLIBTOP_PROC_TIME_CUTIME</a>
#define <a class="link" href="libgtop-proctime.html#GLIBTOP-PROC-TIME-CSTIME:CAPS" title="GLIBTOP_PROC_TIME_CSTIME">GLIBTOP_PROC_TIME_CSTIME</a>
#define <a class="link" href="libgtop-proctime.html#GLIBTOP-PROC-TIME-TIMEOUT:CAPS" title="GLIBTOP_PROC_TIME_TIMEOUT">GLIBTOP_PROC_TIME_TIMEOUT</a>
#define <a class="link" href="libgtop-proctime.html#GLIBTOP-PROC-TIME-IT-REAL-VALUE:CAPS" title="GLIBTOP_PROC_TIME_IT_REAL_VALUE">GLIBTOP_PROC_TIME_IT_REAL_VALUE</a>
#define <a class="link" href="libgtop-proctime.html#GLIBTOP-PROC-TIME-FREQUENCY:CAPS" title="GLIBTOP_PROC_TIME_FREQUENCY">GLIBTOP_PROC_TIME_FREQUENCY</a>
#define <a class="link" href="libgtop-proctime.html#GLIBTOP-PROC-TIME-XCPU-UTIME:CAPS" title="GLIBTOP_PROC_TIME_XCPU_UTIME">GLIBTOP_PROC_TIME_XCPU_UTIME</a>
#define <a class="link" href="libgtop-proctime.html#GLIBTOP-PROC-TIME-XCPU-STIME:CAPS" title="GLIBTOP_PROC_TIME_XCPU_STIME">GLIBTOP_PROC_TIME_XCPU_STIME</a>
#define <a class="link" href="libgtop-proctime.html#GLIBTOP-MAX-PROC-TIME:CAPS" title="GLIBTOP_MAX_PROC_TIME">GLIBTOP_MAX_PROC_TIME</a>
struct <a class="link" href="libgtop-proctime.html#glibtop-proc-time" title="struct glibtop_proc_time">glibtop_proc_time</a>;
<span class="returnvalue">void</span> <a class="link" href="libgtop-proctime.html#glibtop-get-proc-time" title="glibtop_get_proc_time ()">glibtop_get_proc_time</a> (<em class="parameter"><code><a class="link" href="libgtop-proctime.html#glibtop-proc-time" title="struct glibtop_proc_time"><span class="type">glibtop_proc_time</span></a> *buf</code></em>,
<em class="parameter"><code><span class="type">pid_t</span> pid</code></em>);
#define <a class="link" href="libgtop-proctime.html#glibtop-get-proc-time-r" title="glibtop_get_proc_time_r">glibtop_get_proc_time_r</a>
<span class="returnvalue">void</span> <a class="link" href="libgtop-proctime.html#glibtop-get-proc-time-l" title="glibtop_get_proc_time_l ()">glibtop_get_proc_time_l</a> (<em class="parameter"><code><a class="link" href="libgtop-GlibTop.html#glibtop" title="struct glibtop"><span class="type">glibtop</span></a> *server</code></em>,
<em class="parameter"><code><a class="link" href="libgtop-proctime.html#glibtop-proc-time" title="struct glibtop_proc_time"><span class="type">glibtop_proc_time</span></a> *buf</code></em>,
<em class="parameter"><code><span class="type">pid_t</span> pid</code></em>);
<span class="returnvalue">void</span> <a class="link" href="libgtop-proctime.html#glibtop-get-proc-time-p" title="glibtop_get_proc_time_p ()">glibtop_get_proc_time_p</a> (<em class="parameter"><code><a class="link" href="libgtop-GlibTop.html#glibtop" title="struct glibtop"><span class="type">glibtop</span></a> *server</code></em>,
<em class="parameter"><code><a class="link" href="libgtop-proctime.html#glibtop-proc-time" title="struct glibtop_proc_time"><span class="type">glibtop_proc_time</span></a> *buf</code></em>,
<em class="parameter"><code><span class="type">pid_t</span> pid</code></em>);
<span class="returnvalue">void</span> <a class="link" href="libgtop-proctime.html#glibtop-get-proc-time-s" title="glibtop_get_proc_time_s ()">glibtop_get_proc_time_s</a> (<em class="parameter"><code><a class="link" href="libgtop-GlibTop.html#glibtop" title="struct glibtop"><span class="type">glibtop</span></a> *server</code></em>,
<em class="parameter"><code><a class="link" href="libgtop-proctime.html#glibtop-proc-time" title="struct glibtop_proc_time"><span class="type">glibtop_proc_time</span></a> *buf</code></em>,
<em class="parameter"><code><span class="type">pid_t</span> pid</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="libgtop-proctime.description"></a><h2>Description</h2>
<p>
</p>
</div>
<div class="refsect1">
<a name="libgtop-proctime.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GLIBTOP-PROC-TIME-START-TIME:CAPS"></a><h3>GLIBTOP_PROC_TIME_START_TIME</h3>
<pre class="programlisting">#define GLIBTOP_PROC_TIME_START_TIME 0
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GLIBTOP-PROC-TIME-RTIME:CAPS"></a><h3>GLIBTOP_PROC_TIME_RTIME</h3>
<pre class="programlisting">#define GLIBTOP_PROC_TIME_RTIME 1
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GLIBTOP-PROC-TIME-UTIME:CAPS"></a><h3>GLIBTOP_PROC_TIME_UTIME</h3>
<pre class="programlisting">#define GLIBTOP_PROC_TIME_UTIME 2
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GLIBTOP-PROC-TIME-STIME:CAPS"></a><h3>GLIBTOP_PROC_TIME_STIME</h3>
<pre class="programlisting">#define GLIBTOP_PROC_TIME_STIME 3
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GLIBTOP-PROC-TIME-CUTIME:CAPS"></a><h3>GLIBTOP_PROC_TIME_CUTIME</h3>
<pre class="programlisting">#define GLIBTOP_PROC_TIME_CUTIME 4
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GLIBTOP-PROC-TIME-CSTIME:CAPS"></a><h3>GLIBTOP_PROC_TIME_CSTIME</h3>
<pre class="programlisting">#define GLIBTOP_PROC_TIME_CSTIME 5
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GLIBTOP-PROC-TIME-TIMEOUT:CAPS"></a><h3>GLIBTOP_PROC_TIME_TIMEOUT</h3>
<pre class="programlisting">#define GLIBTOP_PROC_TIME_TIMEOUT 6
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GLIBTOP-PROC-TIME-IT-REAL-VALUE:CAPS"></a><h3>GLIBTOP_PROC_TIME_IT_REAL_VALUE</h3>
<pre class="programlisting">#define GLIBTOP_PROC_TIME_IT_REAL_VALUE 7
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GLIBTOP-PROC-TIME-FREQUENCY:CAPS"></a><h3>GLIBTOP_PROC_TIME_FREQUENCY</h3>
<pre class="programlisting">#define GLIBTOP_PROC_TIME_FREQUENCY 8
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GLIBTOP-PROC-TIME-XCPU-UTIME:CAPS"></a><h3>GLIBTOP_PROC_TIME_XCPU_UTIME</h3>
<pre class="programlisting">#define GLIBTOP_PROC_TIME_XCPU_UTIME 9
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GLIBTOP-PROC-TIME-XCPU-STIME:CAPS"></a><h3>GLIBTOP_PROC_TIME_XCPU_STIME</h3>
<pre class="programlisting">#define GLIBTOP_PROC_TIME_XCPU_STIME 10
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GLIBTOP-MAX-PROC-TIME:CAPS"></a><h3>GLIBTOP_MAX_PROC_TIME</h3>
<pre class="programlisting">#define GLIBTOP_MAX_PROC_TIME 11
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="glibtop-proc-time"></a><h3>struct glibtop_proc_time</h3>
<pre class="programlisting">struct glibtop_proc_time {
guint64 flags;
guint64 start_time; /* start time of process --
* seconds since 1-1-70 */
guint64 rtime; /* real time accumulated by process */
guint64 utime; /* user-mode CPU time accumulated by process */
guint64 stime; /* kernel-mode CPU time accumulated by process */
guint64 cutime; /* cumulative utime of process and
* reaped children */
guint64 cstime; /* cumulative stime of process and
* reaped children */
guint64 timeout; /* The time (in jiffies) of the process's
* next timeout */
guint64 it_real_value; /* The time (in jiffies) before the
* next SIGALRM is sent to the process
* due to an interval timer. */
guint64 frequency; /* Tick frequency. */
guint64 xcpu_utime [GLIBTOP_NCPU]; /* utime and stime for all CPUs on */
guint64 xcpu_stime [GLIBTOP_NCPU]; /* SMP machines. */
};
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="glibtop-get-proc-time"></a><h3>glibtop_get_proc_time ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> glibtop_get_proc_time (<em class="parameter"><code><a class="link" href="libgtop-proctime.html#glibtop-proc-time" title="struct glibtop_proc_time"><span class="type">glibtop_proc_time</span></a> *buf</code></em>,
<em class="parameter"><code><span class="type">pid_t</span> pid</code></em>);</pre>
<p>
Please note that under Linux, <span class="type">start_time</span> value may be strange.
Linux kernel defines <span class="type">INITIAL_JIFFIES</span> which implies a time
shift. Because <span class="type">INITIAL_JIFFIES</span> is not user-space defined,
we cannot use it to compute accurate <em class="parameter"><code>code</code></em>{start_time}. On Linux2.6,
<span class="type">INITIAL_JIFFIES</span> is 300 so <span class="type">start_time</span> is
always 3s different from real start time of the given process. You
may also get shift results if your system clock is not synchronised
with your hardware clock. See <span class="command"><strong>man hwclock</strong></span>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>pid</code></em> :</span></p></td>
<td>Process id to get the user and tty information</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="glibtop-get-proc-time-r"></a><h3>glibtop_get_proc_time_r</h3>
<pre class="programlisting">#define glibtop_get_proc_time_r glibtop_get_proc_time_p
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="glibtop-get-proc-time-l"></a><h3>glibtop_get_proc_time_l ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> glibtop_get_proc_time_l (<em class="parameter"><code><a class="link" href="libgtop-GlibTop.html#glibtop" title="struct glibtop"><span class="type">glibtop</span></a> *server</code></em>,
<em class="parameter"><code><a class="link" href="libgtop-proctime.html#glibtop-proc-time" title="struct glibtop_proc_time"><span class="type">glibtop_proc_time</span></a> *buf</code></em>,
<em class="parameter"><code><span class="type">pid_t</span> pid</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="glibtop-get-proc-time-p"></a><h3>glibtop_get_proc_time_p ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> glibtop_get_proc_time_p (<em class="parameter"><code><a class="link" href="libgtop-GlibTop.html#glibtop" title="struct glibtop"><span class="type">glibtop</span></a> *server</code></em>,
<em class="parameter"><code><a class="link" href="libgtop-proctime.html#glibtop-proc-time" title="struct glibtop_proc_time"><span class="type">glibtop_proc_time</span></a> *buf</code></em>,
<em class="parameter"><code><span class="type">pid_t</span> pid</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="glibtop-get-proc-time-s"></a><h3>glibtop_get_proc_time_s ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> glibtop_get_proc_time_s (<em class="parameter"><code><a class="link" href="libgtop-GlibTop.html#glibtop" title="struct glibtop"><span class="type">glibtop</span></a> *server</code></em>,
<em class="parameter"><code><a class="link" href="libgtop-proctime.html#glibtop-proc-time" title="struct glibtop_proc_time"><span class="type">glibtop_proc_time</span></a> *buf</code></em>,
<em class="parameter"><code><span class="type">pid_t</span> pid</code></em>);</pre>
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