126 lines
4.2 KiB
HTML
126 lines
4.2 KiB
HTML
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<!-- Copyright (c) 2001 The Open Group, All Rights Reserved -->
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<title>pthread_getcpuclockid</title>
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<basefont size="3"> <a name="pthread_getcpuclockid"></a> <a name="tag_03_530"></a><!-- pthread_getcpuclockid -->
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<!--header start-->
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<center><font size="2">The Open Group Base Specifications Issue 6<br>
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IEEE Std 1003.1-2001<br>
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Copyright © 2001 The IEEE and The Open Group, All Rights reserved.</font></center>
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<!--header end-->
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<hr size="2" noshade>
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<h4><a name="tag_03_530_01"></a>NAME</h4>
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<blockquote>pthread_getcpuclockid - access a thread CPU-time clock (<b>ADVANCED REALTIME THREADS</b>)</blockquote>
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<h4><a name="tag_03_530_02"></a>SYNOPSIS</h4>
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<blockquote class="synopsis">
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<div class="box"><code><tt><sup>[<a href="javascript:open_code('THR TCT')">THR TCT</a>]</sup> <img src="../images/opt-start.gif" alt=
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"[Option Start]" border="0"> #include <<a href="../basedefs/pthread.h.html">pthread.h</a>><br>
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#include <<a href="../basedefs/time.h.html">time.h</a>><br>
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<br>
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int pthread_getcpuclockid(pthread_t</tt> <i>thread_id</i><tt>, clockid_t *</tt><i>clock_id</i><tt>); <img src=
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"../images/opt-end.gif" alt="[Option End]" border="0"></tt></code></div>
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<tt><br>
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</tt></blockquote>
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<h4><a name="tag_03_530_03"></a>DESCRIPTION</h4>
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<blockquote>
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<p>The <i>pthread_getcpuclockid</i>() function shall return in <i>clock_id</i> the clock ID of the CPU-time clock of the thread
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specified by <i>thread_id</i>, if the thread specified by <i>thread_id</i> exists.</p>
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</blockquote>
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<h4><a name="tag_03_530_04"></a>RETURN VALUE</h4>
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<blockquote>
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<p>Upon successful completion, <i>pthread_getcpuclockid</i>() shall return zero; otherwise, an error number shall be returned to
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indicate the error.</p>
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</blockquote>
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<h4><a name="tag_03_530_05"></a>ERRORS</h4>
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<blockquote>
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<p>The <i>pthread_getcpuclockid</i>() function may fail if:</p>
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<dl compact>
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<dt>[ESRCH]</dt>
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<dd>The value specified by <i>thread_id</i> does not refer to an existing thread.</dd>
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</dl>
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</blockquote>
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<hr>
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<div class="box"><em>The following sections are informative.</em></div>
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<h4><a name="tag_03_530_06"></a>EXAMPLES</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_530_07"></a>APPLICATION USAGE</h4>
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<blockquote>
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<p>The <i>pthread_getcpuclockid</i>() function is part of the Thread CPU-Time Clocks option and need not be provided on all
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implementations.</p>
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</blockquote>
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<h4><a name="tag_03_530_08"></a>RATIONALE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_530_09"></a>FUTURE DIRECTIONS</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_530_10"></a>SEE ALSO</h4>
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<blockquote>
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<p><a href="clock_getcpuclockid.html"><i>clock_getcpuclockid</i>()</a> , <a href="clock_getres.html"><i>clock_getres</i>()</a> , <a
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href="timer_create.html"><i>timer_create</i>()</a> , the Base Definitions volume of IEEE Std 1003.1-2001, <a href=
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"../basedefs/pthread.h.html"><i><pthread.h></i></a>, <a href="../basedefs/time.h.html"><i><time.h></i></a></p>
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</blockquote>
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<h4><a name="tag_03_530_11"></a>CHANGE HISTORY</h4>
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<blockquote>
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<p>First released in Issue 6. Derived from IEEE Std 1003.1d-1999.</p>
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<p>In the SYNOPSIS, the inclusion of <a href="../basedefs/sys/types.h.html"><i><sys/types.h></i></a> is no longer
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required.</p>
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</blockquote>
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<div class="box"><em>End of informative text.</em></div>
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