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Ref-docs/POSIX/susv3/functions/raise.html
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Ref-docs/POSIX/susv3/functions/raise.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<meta name="generator" content="HTML Tidy, see www.w3.org">
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<link type="text/css" rel="stylesheet" href="style.css"><!-- Generated by The Open Group's rhtm tool v1.2.1 -->
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<!-- Copyright (c) 2001 The Open Group, All Rights Reserved -->
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<title>raise</title>
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</head>
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<body bgcolor="white">
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<script type="text/javascript" language="JavaScript" src="../jscript/codes.js">
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</script>
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<basefont size="3"> <a name="raise"></a> <a name="tag_03_591"></a><!-- raise -->
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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_591_01"></a>NAME</h4>
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<blockquote>raise - send a signal to the executing process</blockquote>
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<h4><a name="tag_03_591_02"></a>SYNOPSIS</h4>
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<blockquote class="synopsis">
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<p><code><tt>#include <<a href="../basedefs/signal.h.html">signal.h</a>><br>
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<br>
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int raise(int</tt> <i>sig</i><tt>);<br>
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</tt></code></p>
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</blockquote>
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<h4><a name="tag_03_591_03"></a>DESCRIPTION</h4>
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<blockquote>
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<div class="box"><sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]"
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border="0"> The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the
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requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 defers to
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the ISO C standard. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></div>
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<p>The <i>raise</i>() function shall send the signal <i>sig</i> to the executing <sup>[<a href=
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"javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0"> thread or
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process. <img src="../images/opt-end.gif" alt="[Option End]" border="0"> If a signal handler is called, the <i>raise</i>() function
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shall not return until after the signal handler does.</p>
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<p><sup>[<a href="javascript:open_code('THR')">THR</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
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If the implementation supports the Threads option, the effect of the <i>raise</i>() function shall be equivalent to calling:</p>
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<pre>
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<tt>pthread_kill(pthread_self(), sig);
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</tt>
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</pre>
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<img src="../images/opt-end.gif" alt="[Option End]" border="0">
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<p><sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
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Otherwise, the effect of the <i>raise</i>() function shall be equivalent to calling:</p>
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<pre>
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<tt>kill(getpid(), sig);
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</tt>
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</pre>
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<img src="../images/opt-end.gif" alt="[Option End]" border="0"></blockquote>
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<h4><a name="tag_03_591_04"></a>RETURN VALUE</h4>
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<blockquote>
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<p>Upon successful completion, 0 shall be returned. Otherwise, a non-zero value shall be returned <sup>[<a href=
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"javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0"> and
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<i>errno</i> shall be set to indicate the error. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></p>
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</blockquote>
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<h4><a name="tag_03_591_05"></a>ERRORS</h4>
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<blockquote>
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<p>The <i>raise</i>() function shall fail if:</p>
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<dl compact>
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<dt>[EINVAL]</dt>
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<dd><sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
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The value of the <i>sig</i> argument is an invalid signal number. <img src="../images/opt-end.gif" alt="[Option End]" border=
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"0"></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_591_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_591_07"></a>APPLICATION USAGE</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_591_08"></a>RATIONALE</h4>
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<blockquote>
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<p>The term "thread" is an extension to the ISO C standard.</p>
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</blockquote>
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<h4><a name="tag_03_591_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_591_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="sigaction.html"><i>sigaction</i>()</a> , the Base Definitions volume of
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IEEE Std 1003.1-2001, <a href="../basedefs/signal.h.html"><i><signal.h></i></a>, <a href=
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"../basedefs/sys/types.h.html"><i><sys/types.h></i></a></p>
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</blockquote>
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<h4><a name="tag_03_591_11"></a>CHANGE HISTORY</h4>
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<blockquote>
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<p>First released in Issue 4. Derived from the ANSI C standard.</p>
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</blockquote>
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<h4><a name="tag_03_591_12"></a>Issue 5</h4>
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<blockquote>
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<p>The DESCRIPTION is updated for alignment with the POSIX Threads Extension.</p>
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</blockquote>
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<h4><a name="tag_03_591_13"></a>Issue 6</h4>
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<blockquote>
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<p>Extensions beyond the ISO C standard are marked.</p>
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<p>The following new requirements on POSIX implementations derive from alignment with the Single UNIX Specification:</p>
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<ul>
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<li>
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<p>In the RETURN VALUE section, the requirement to set <i>errno</i> on error is added.</p>
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</li>
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<li>
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<p>The [EINVAL] error condition is added.</p>
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</li>
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</ul>
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</blockquote>
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<div class="box"><em>End of informative text.</em></div>
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UNIX ® is a registered Trademark of The Open Group.<br>
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POSIX ® is a registered Trademark of The IEEE.<br>
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[ <a href="../mindex.html">Main Index</a> | <a href="../basedefs/contents.html">XBD</a> | <a href=
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"../utilities/contents.html">XCU</a> | <a href="../functions/contents.html">XSH</a> | <a href="../xrat/contents.html">XRAT</a>
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