141 lines
4.6 KiB
HTML
141 lines
4.6 KiB
HTML
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<!-- Copyright (c) 2001 The Open Group, All Rights Reserved -->
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<title>pthread_kill</title>
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<script type="text/javascript" language="JavaScript" src="../jscript/codes.js">
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<basefont size="3"> <a name="pthread_kill"></a> <a name="tag_03_536"></a><!-- pthread_kill -->
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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_536_01"></a>NAME</h4>
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<blockquote>pthread_kill - send a signal to a thread</blockquote>
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<h4><a name="tag_03_536_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')">THR</a>]</sup> <img src="../images/opt-start.gif" alt=
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"[Option Start]" border="0"> #include <<a href="../basedefs/signal.h.html">signal.h</a>><br>
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<br>
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int pthread_kill(pthread_t</tt> <i>thread</i><tt>, int</tt> <i>sig</i><tt>); <img src="../images/opt-end.gif" alt="[Option End]"
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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_536_03"></a>DESCRIPTION</h4>
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<blockquote>
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<p>The <i>pthread_kill</i>() function shall request that a signal be delivered to the specified thread.</p>
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<p>As in <a href="../functions/kill.html"><i>kill</i>()</a>, if <i>sig</i> is zero, error checking shall be performed but no signal
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shall actually be sent.</p>
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</blockquote>
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<h4><a name="tag_03_536_04"></a>RETURN VALUE</h4>
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<blockquote>
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<p>Upon successful completion, the function shall return a value of zero. Otherwise, the function shall return an error number. If
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the <i>pthread_kill</i>() function fails, no signal shall be sent.</p>
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</blockquote>
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<h4><a name="tag_03_536_05"></a>ERRORS</h4>
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<blockquote>
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<p>The <i>pthread_kill</i>() function shall fail if:</p>
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<dl compact>
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<dt>[ESRCH]</dt>
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<dd>No thread could be found corresponding to that specified by the given thread ID.</dd>
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<dt>[EINVAL]</dt>
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<dd>The value of the <i>sig</i> argument is an invalid or unsupported signal number.</dd>
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</dl>
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<p>The <i>pthread_kill</i>() function shall not return an error code of [EINTR].</p>
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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_536_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_536_07"></a>APPLICATION USAGE</h4>
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<blockquote>
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<p>The <i>pthread_kill</i>() function provides a mechanism for asynchronously directing a signal at a thread in the calling
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process. This could be used, for example, by one thread to affect broadcast delivery of a signal to a set of threads.</p>
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<p>Note that <i>pthread_kill</i>() only causes the signal to be handled in the context of the given thread; the signal action
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(termination or stopping) affects the process as a whole.</p>
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</blockquote>
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<h4><a name="tag_03_536_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_536_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_536_10"></a>SEE ALSO</h4>
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<blockquote>
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<p><a href="kill.html"><i>kill</i>()</a> , <a href="pthread_self.html"><i>pthread_self</i>()</a> , <a href=
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"raise.html"><i>raise</i>()</a> , the Base Definitions volume of IEEE Std 1003.1-2001, <a href=
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"../basedefs/signal.h.html"><i><signal.h></i></a></p>
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</blockquote>
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<h4><a name="tag_03_536_11"></a>CHANGE HISTORY</h4>
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<blockquote>
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<p>First released in Issue 5. Included for alignment with the POSIX Threads Extension.</p>
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</blockquote>
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<h4><a name="tag_03_536_12"></a>Issue 6</h4>
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<blockquote>
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<p>The <i>pthread_kill</i>() function is marked as part of the Threads option.</p>
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<p>The APPLICATION USAGE section is added.</p>
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</blockquote>
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<div class="box"><em>End of informative text.</em></div>
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