/repo: _exit.html annotate

annotate _exit.html @ 7330:0eae4b049f93

<oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html

author	HackBot
date	Thu, 31 Mar 2016 09:29:40 +0000
parents
children

rev	line source
7330 0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	2 <html>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	3 <head>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	4 <meta name="generator" content="HTML Tidy, see www.w3.org">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	5 <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	6 <link type="text/css" rel="stylesheet" href="style.css">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	7 <!-- Generated by The Open Group's rhtm tool v1.2.1 -->
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	8 <!-- Copyright (c) 2001-2004 IEEE and The Open Group, All Rights Reserved -->
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	9 <title>exit</title>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	10 </head>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	11 <body bgcolor="white">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	12 <script type="text/javascript" language="JavaScript" src="../jscript/codes.js">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	13 </script>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	14
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	15 <basefont size="3"> <a name="exit"></a> <a name="tag_03_131"></a><!-- exit -->
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	16 <!--header start-->
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	17 <center><font size="2">The Open Group Base Specifications Issue 6<br>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	18 IEEE Std 1003.1, 2004 Edition<br>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	19 Copyright © 2001-2004 The IEEE and The Open Group, All Rights reserved.</font></center><center><font color="red">A newer edition of this document exists <a href="http://pubs.opengroup.org/onlinepubs/9699919799/" target="_parent">here</a></font></center>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	20
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	21 <!--header end-->
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	22 <hr size="2" noshade>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	23 <h4><a name="tag_03_131_01"></a>NAME</h4>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	24
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	25 <blockquote>exit, _Exit, _exit - terminate a process</blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	26
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	27 <h4><a name="tag_03_131_02"></a>SYNOPSIS</h4>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	28
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	29 <blockquote class="synopsis">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	30 <p><code><tt>#include <<a href="../basedefs/stdlib.h.html">stdlib.h</a>><br>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	31 <br>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	32 void exit(int</tt> <i>status</i><tt>);<br>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	33 void _Exit(int</tt> <i>status</i><tt>);<br>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	34 <br>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	35 <br>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	36 #include <<a href="../basedefs/unistd.h.html">unistd.h</a>><br>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	37 void _exit(int</tt> <i>status</i><tt>);<br>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	38 </tt></code></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	39 </blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	40
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	41 <h4><a name="tag_03_131_03"></a>DESCRIPTION</h4>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	42
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	43 <blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	44 <p>For <i>exit</i>() and <i>_Exit</i>(): <sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	45 "../images/opt-start.gif" alt="[Option Start]" border="0"> The functionality described on this reference page is aligned with the
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	46 ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	47 of IEEE Std 1003.1-2001 defers to the ISO C standard. <img src="../images/opt-end.gif" alt="[Option End]" border=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	48 "0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	49
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	50 <p>The value of <i>status</i> may be 0, EXIT_SUCCESS, EXIT_FAILURE, <sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	51 src="../images/opt-start.gif" alt="[Option Start]" border="0">  or any other value, though only the least significant 8 bits
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	52 (that is, <i>status</i> & 0377) shall be available to a waiting parent process. <img src="../images/opt-end.gif" alt=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	53 "[Option End]" border="0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	54
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	55 <p>The <i>exit</i>() function shall first call all functions registered by <a href="../functions/atexit.html"><i>atexit</i>()</a>,
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	56 in the reverse order of their registration, except that a function is called after any previously registered functions that had
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	57 already been called at the time it was registered. Each function is called as many times as it was registered. If, during the call
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	58 to any such function, a call to the <a href="../functions/longjmp.html"><i>longjmp</i>()</a> function is made that would terminate
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	59 the call to the registered function, the behavior is undefined.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	60
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	61 <p>If a function registered by a call to <a href="../functions/atexit.html"><i>atexit</i>()</a> fails to return, the remaining
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	62 registered functions shall not be called and the rest of the <i>exit</i>() processing shall not be completed. If <i>exit</i>() is
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	63 called more than once, the behavior is undefined.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	64
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	65 <p>The <i>exit</i>() function shall then flush all open streams with unwritten buffered data, close all open streams, and remove
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	66 all files created by <a href="../functions/tmpfile.html"><i>tmpfile</i>()</a>. Finally, control shall be terminated with the
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	67 consequences described below.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	68
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	69 <p><sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0"> The
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	70 <i>_Exit</i>() and <i>_exit</i>() functions shall be functionally equivalent. <img src="../images/opt-end.gif" alt="[Option End]"
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	71 border="0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	72
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	73 <p>The <i>_Exit</i>() <sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	74 "[Option Start]" border="0">  and <i>_exit</i>() <img src="../images/opt-end.gif" alt="[Option End]" border="0"> functions
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	75 shall not call functions registered with <a href="../functions/atexit.html"><i>atexit</i>()</a> nor any registered signal handlers.
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	76 Whether open streams are flushed or closed, or temporary files are removed is implementation-defined. Finally, the calling process
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	77 is terminated with the consequences described below.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	78
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	79 <p>These functions shall terminate the calling process <sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	80 "../images/opt-start.gif" alt="[Option Start]" border="0">  with the following consequences: <img src="../images/opt-end.gif"
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	81 alt="[Option End]" border="0"> <basefont size="2"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	82
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	83 <dl>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	84 <dt><b>Note:</b></dt>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	85
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	86 <dd>These consequences are all extensions to the ISO C standard and are not further CX shaded. However, XSI extensions are
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	87 shaded.</dd>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	88 </dl>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	89
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	90 <basefont size="3">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	91
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	92 <ul>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	93 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	94 <p>All of the file descriptors, directory streams, <sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup> <img src=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	95 "../images/opt-start.gif" alt="[Option Start]" border="0">  conversion descriptors, and message catalog descriptors <img src=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	96 "../images/opt-end.gif" alt="[Option End]" border="0">  open in the calling process shall be closed.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	97 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	98
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	99 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	100 <p>If the parent process of the calling process is executing a <a href="../functions/wait.html"><i>wait</i>()</a> or <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	101 "../functions/waitpid.html"><i>waitpid</i>()</a>, <sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup> <img src=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	102 "../images/opt-start.gif" alt="[Option Start]" border="0">  and has neither set its SA_NOCLDWAIT flag nor set SIGCHLD to
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	103 SIG_IGN, <img src="../images/opt-end.gif" alt="[Option End]" border="0"> it shall be notified of the calling process' termination
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	104 and the low-order eight bits (that is, bits 0377) of <i>status</i> shall be made available to it. If the parent is not waiting, the
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	105 child's status shall be made available to it when the parent subsequently executes <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	106 "../functions/wait.html"><i>wait</i>()</a> or <a href="../functions/waitpid.html"><i>waitpid</i>()</a>.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	107
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	108 <p><sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	109 The semantics of the <a href="../functions/waitid.html"><i>waitid</i>()</a> function shall be equivalent to <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	110 "../functions/wait.html"><i>wait</i>()</a>. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	111 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	112
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	113 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	114 <p>If the parent process of the calling process is not executing a <a href="../functions/wait.html"><i>wait</i>()</a> or <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	115 "../functions/waitpid.html"><i>waitpid</i>()</a>, <sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup> <img src=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	116 "../images/opt-start.gif" alt="[Option Start]" border="0">  and has neither set its SA_NOCLDWAIT flag nor set SIGCHLD to
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	117 SIG_IGN, <img src="../images/opt-end.gif" alt="[Option End]" border="0"> the calling process shall be transformed into a <i>zombie
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	118 process</i>. A <i>zombie process</i> is an inactive process and it shall be deleted at some later time when its parent process
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	119 executes <a href="../functions/wait.html"><i>wait</i>()</a> or <a href="../functions/waitpid.html"><i>waitpid</i>()</a>.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	120
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	121 <p><sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	122 The semantics of the <a href="../functions/waitid.html"><i>waitid</i>()</a> function shall be equivalent to <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	123 "../functions/wait.html"><i>wait</i>()</a>. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	124 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	125
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	126 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	127 <p>Termination of a process does not directly terminate its children. The sending of a SIGHUP signal as described below indirectly
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	128 terminates children in some circumstances.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	129 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	130
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	131 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	132 <p>Either:</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	133
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	134 <p>If the implementation supports the SIGCHLD signal, a SIGCHLD shall be sent to the parent process.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	135
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	136 <p>Or:</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	137
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	138 <p><sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	139 If the parent process has set its SA_NOCLDWAIT flag, or set SIGCHLD to SIG_IGN, the status shall be discarded, and the lifetime of
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	140 the calling process shall end immediately. If SA_NOCLDWAIT is set, it is implementation-defined whether a SIGCHLD signal is sent to
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	141 the parent process. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	142 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	143
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	144 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	145 <p>The parent process ID of all of the calling process' existing child processes and zombie processes shall be set to the process
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	146 ID of an implementation-defined system process. That is, these processes shall be inherited by a special system process.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	147 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	148
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	149 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	150 <p><sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	151 Each attached shared-memory segment is detached and the value of <i>shm_nattch</i> (see <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	152 "../functions/shmget.html"><i>shmget</i>()</a>) in the data structure associated with its shared memory ID shall be decremented by
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	153 1. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	154 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	155
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	156 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	157 <p><sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	158 For each semaphore for which the calling process has set a <i>semadj</i> value (see <a href="semop.html"><i>semop</i>()</a> ), that
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	159 value shall be added to the <i>semval</i> of the specified semaphore. <img src="../images/opt-end.gif" alt="[Option End]" border=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	160 "0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	161 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	162
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	163 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	164 <p>If the process is a controlling process, the SIGHUP signal shall be sent to each process in the foreground process group of the
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	165 controlling terminal belonging to the calling process.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	166 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	167
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	168 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	169 <p>If the process is a controlling process, the controlling terminal associated with the session shall be disassociated from the
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	170 session, allowing it to be acquired by a new controlling process.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	171 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	172
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	173 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	174 <p>If the exit of the process causes a process group to become orphaned, and if any member of the newly-orphaned process group is
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	175 stopped, then a SIGHUP signal followed by a SIGCONT signal shall be sent to each process in the newly-orphaned process group.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	176 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	177
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	178 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	179 <p><sup>[<a href="javascript:open_code('SEM')">SEM</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	180 All open named semaphores in the calling process shall be closed as if by appropriate calls to <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	181 "../functions/sem_close.html"><i>sem_close</i>()</a>. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	182 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	183
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	184 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	185 <p><sup>[<a href="javascript:open_code('ML')">ML</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0"> Any
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	186 memory locks established by the process via calls to <a href="../functions/mlockall.html"><i>mlockall</i>()</a> or <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	187 "../functions/mlock.html"><i>mlock</i>()</a> shall be removed. If locked pages in the address space of the calling process are also
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	188 mapped into the address spaces of other processes and are locked by those processes, the locks established by the other processes
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	189 shall be unaffected by the call by this process to <i>_Exit</i>() or <i>_exit</i>(). <img src="../images/opt-end.gif" alt=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	190 "[Option End]" border="0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	191 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	192
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	193 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	194 <p><sup>[<a href="javascript:open_code('MF')">MF\|SHM</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	195 Memory mappings that were created in the process shall be unmapped before the process is destroyed. <img src=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	196 "../images/opt-end.gif" alt="[Option End]" border="0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	197 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	198
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	199 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	200 <p><sup>[<a href="javascript:open_code('TYM')">TYM</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	201 Any blocks of typed memory that were mapped in the calling process shall be unmapped, as if <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	202 "../functions/munmap.html"><i>munmap</i>()</a> was implicitly called to unmap them. <img src="../images/opt-end.gif" alt=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	203 "[Option End]" border="0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	204 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	205
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	206 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	207 <p><sup>[<a href="javascript:open_code('MSG')">MSG</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	208 All open message queue descriptors in the calling process shall be closed as if by appropriate calls to <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	209 "../functions/mq_close.html"><i>mq_close</i>()</a>. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	210 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	211
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	212 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	213 <p><sup>[<a href="javascript:open_code('AIO')">AIO</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	214 Any outstanding cancelable asynchronous I/O operations may be canceled. Those asynchronous I/O operations that are not canceled
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	215 shall complete as if the <i>_Exit</i>() or <i>_exit</i>() operation had not yet occurred, but any associated signal notifications
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	216 shall be suppressed. The <i>_Exit</i>() or <i>_exit</i>() operation may block awaiting such I/O completion. Whether any I/O is
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	217 canceled, and which I/O may be canceled upon <i>_Exit</i>() or <i>_exit</i>(), is implementation-defined. <img src=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	218 "../images/opt-end.gif" alt="[Option End]" border="0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	219 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	220
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	221 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	222 <p>Threads terminated by a call to <i>_Exit</i>() or <i>_exit</i>() shall not invoke their cancellation cleanup handlers or
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	223 per-thread data destructors.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	224 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	225
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	226 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	227 <p><sup>[<a href="javascript:open_code('TRC')">TRC</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	228 If the calling process is a trace controller process, any trace streams that were created by the calling process shall be shut down
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	229 as described by the <a href="../functions/posix_trace_shutdown.html"><i>posix_trace_shutdown</i>()</a> function, and any process'
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	230 mapping of trace event names to trace event type identifiers built for these trace streams may be deallocated. <img src=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	231 "../images/opt-end.gif" alt="[Option End]" border="0"></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	232 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	233 </ul>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	234 </blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	235
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	236 <h4><a name="tag_03_131_04"></a>RETURN VALUE</h4>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	237
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	238 <blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	239 <p>These functions do not return.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	240 </blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	241
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	242 <h4><a name="tag_03_131_05"></a>ERRORS</h4>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	243
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	244 <blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	245 <p>No errors are defined.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	246 </blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	247
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	248 <hr>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	249 <div class="box"><em>The following sections are informative.</em></div>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	250
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	251 <h4><a name="tag_03_131_06"></a>EXAMPLES</h4>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	252
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	253 <blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	254 <p>None.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	255 </blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	256
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	257 <h4><a name="tag_03_131_07"></a>APPLICATION USAGE</h4>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	258
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	259 <blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	260 <p>Normally applications should use <i>exit</i>() rather than <i>_Exit</i>() or <i>_exit</i>().</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	261 </blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	262
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	263 <h4><a name="tag_03_131_08"></a>RATIONALE</h4>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	264
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	265 <blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	266 <h5><a name="tag_03_131_08_01"></a>Process Termination</h5>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	267
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	268 <p>Early proposals drew a distinction between normal and abnormal process termination. Abnormal termination was caused only by
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	269 certain signals and resulted in implementation-defined "actions", as discussed below. Subsequent proposals distinguished three
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	270 types of termination: <i>normal termination</i> (as in the current specification), <i>simple abnormal termination</i>, and
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	271 <i>abnormal termination with actions</i>. Again the distinction between the two types of abnormal termination was that they were
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	272 caused by different signals and that implementation-defined actions would result in the latter case. Given that these actions were
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	273 completely implementation-defined, the early proposals were only saying when the actions could occur and how their occurrence could
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	274 be detected, but not what they were. This was of little or no use to conforming applications, and thus the distinction is not made
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	275 in this volume of IEEE Std 1003.1-2001.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	276
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	277 <p>The implementation-defined actions usually include, in most historical implementations, the creation of a file named <b>core</b>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	278 in the current working directory of the process. This file contains an image of the memory of the process, together with
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	279 descriptive information about the process, perhaps sufficient to reconstruct the state of the process at the receipt of the
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	280 signal.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	281
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	282 <p>There is a potential security problem in creating a <b>core</b> file if the process was set-user-ID and the current user is not
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	283 the owner of the program, if the process was set-group-ID and none of the user's groups match the group of the program, or if the
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	284 user does not have permission to write in the current directory. In this situation, an implementation either should not create a
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	285 <b>core</b> file or should make it unreadable by the user.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	286
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	287 <p>Despite the silence of this volume of IEEE Std 1003.1-2001 on this feature, applications are advised not to create
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	288 files named <b>core</b> because of potential conflicts in many implementations. Some implementations use a name other than
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	289 <b>core</b> for the file; for example, by appending the process ID to the filename.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	290
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	291 <h5><a name="tag_03_131_08_02"></a>Terminating a Process</h5>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	292
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	293 <p>It is important that the consequences of process termination as described occur regardless of whether the process called
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	294 <i>_exit</i>() (perhaps indirectly through <i>exit</i>()) or instead was terminated due to a signal or for some other reason. Note
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	295 that in the specific case of <i>exit</i>() this means that the <i>status</i> argument to <i>exit</i>() is treated in the same way
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	296 as the <i>status</i> argument to <i>_exit</i>().</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	297
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	298 <p>A language other than C may have other termination primitives than the C-language <i>exit</i>() function, and programs written
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	299 in such a language should use its native termination primitives, but those should have as part of their function the behavior of
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	300 <i>_exit</i>() as described. Implementations in languages other than C are outside the scope of this version of this volume of
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	301 IEEE Std 1003.1-2001, however.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	302
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	303 <p>As required by the ISO C standard, using <b>return</b> from <i>main</i>() has the same behavior (other than with respect to
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	304 language scope issues) as calling <i>exit</i>() with the returned value. Reaching the end of the <i>main</i>() function has the
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	305 same behavior as calling <i>exit</i>(0).</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	306
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	307 <p>A value of zero (or EXIT_SUCCESS, which is required to be zero) for the argument <i>status</i> conventionally indicates
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	308 successful termination. This corresponds to the specification for <i>exit</i>() in the ISO C standard. The convention is
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	309 followed by utilities such as <a href="../utilities/make.html"><i>make</i></a> and various shells, which interpret a zero status
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	310 from a child process as success. For this reason, applications should not call <i>exit</i>(0) or <i>_exit</i>(0) when they
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	311 terminate unsuccessfully; for example, in signal-catching functions.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	312
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	313 <p>Historically, the implementation-defined process that inherits children whose parents have terminated without waiting on them is
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	314 called <i>init</i> and has a process ID of 1.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	315
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	316 <p>The sending of a SIGHUP to the foreground process group when a controlling process terminates corresponds to somewhat different
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	317 historical implementations. In System V, the kernel sends a SIGHUP on termination of (essentially) a controlling process. In 4.2
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	318 BSD, the kernel does not send SIGHUP in a case like this, but the termination of a controlling process is usually noticed by a
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	319 system daemon, which arranges to send a SIGHUP to the foreground process group with the <i>vhangup</i>() function. However, in 4.2
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	320 BSD, due to the behavior of the shells that support job control, the controlling process is usually a shell with no other processes
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	321 in its process group. Thus, a change to make <i>_exit</i>() behave this way in such systems should not cause problems with existing
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	322 applications.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	323
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	324 <p>The termination of a process may cause a process group to become orphaned in either of two ways. The connection of a process
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	325 group to its parent(s) outside of the group depends on both the parents and their children. Thus, a process group may be orphaned
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	326 by the termination of the last connecting parent process outside of the group or by the termination of the last direct descendant
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	327 of the parent process(es). In either case, if the termination of a process causes a process group to become orphaned, processes
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	328 within the group are disconnected from their job control shell, which no longer has any information on the existence of the process
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	329 group. Stopped processes within the group would languish forever. In order to avoid this problem, newly orphaned process groups
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	330 that contain stopped processes are sent a SIGHUP signal and a SIGCONT signal to indicate that they have been disconnected from
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	331 their session. The SIGHUP signal causes the process group members to terminate unless they are catching or ignoring SIGHUP. Under
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	332 most circumstances, all of the members of the process group are stopped if any of them are stopped.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	333
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	334 <p>The action of sending a SIGHUP and a SIGCONT signal to members of a newly orphaned process group is similar to the action of 4.2
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	335 BSD, which sends SIGHUP and SIGCONT to each stopped child of an exiting process. If such children exit in response to the SIGHUP,
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	336 any additional descendants receive similar treatment at that time. In this volume of IEEE Std 1003.1-2001, the signals
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	337 are sent to the entire process group at the same time. Also, in this volume of IEEE Std 1003.1-2001, but not in 4.2 BSD,
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	338 stopped processes may be orphaned, but may be members of a process group that is not orphaned; therefore, the action taken at
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	339 <i>_exit</i>() must consider processes other than child processes.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	340
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	341 <p>It is possible for a process group to be orphaned by a call to <a href="../functions/setpgid.html"><i>setpgid</i>()</a> or <a
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	342 href="../functions/setsid.html"><i>setsid</i>()</a>, as well as by process termination. This volume of
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	343 IEEE Std 1003.1-2001 does not require sending SIGHUP and SIGCONT in those cases, because, unlike process termination,
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	344 those cases are not caused accidentally by applications that are unaware of job control. An implementation can choose to send
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	345 SIGHUP and SIGCONT in those cases as an extension; such an extension must be documented as required in <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	346 "../basedefs/signal.h.html"><i><signal.h></i></a>.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	347
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	348 <p>The ISO/IEC 9899:1999 standard adds the <i>_Exit</i>() function that results in immediate program termination without
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	349 triggering signals or <a href="../functions/atexit.html"><i>atexit</i>()</a>-registered functions. In
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	350 IEEE Std 1003.1-2001, this is equivalent to the <i>_exit</i>() function.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	351 </blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	352
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	353 <h4><a name="tag_03_131_09"></a>FUTURE DIRECTIONS</h4>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	354
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	355 <blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	356 <p>None.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	357 </blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	358
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	359 <h4><a name="tag_03_131_10"></a>SEE ALSO</h4>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	360
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	361 <blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	362 <p><a href="atexit.html"><i>atexit</i>()</a>, <a href="close.html"><i>close</i>()</a>, <a href="fclose.html"><i>fclose</i>()</a>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	363 , <a href="longjmp.html"><i>longjmp</i>()</a>, <a href="posix_trace_shutdown.html"><i>posix_trace_shutdown</i>()</a>, <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	364 "posix_trace_trid_eventid_open.html"><i>posix_trace_trid_eventid_open</i>()</a>, <a href="semop.html"><i>semop</i>()</a>, <a
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	365 href="shmget.html"><i>shmget</i>()</a>, <a href="sigaction.html"><i>sigaction</i>()</a>, <a href="wait.html"><i>wait</i>()</a>,
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	366 <a href="waitid.html"><i>waitid</i>()</a>, <a href="waitpid.html"><i>waitpid</i>()</a>, the Base Definitions volume of
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	367 IEEE Std 1003.1-2001, <a href="../basedefs/stdlib.h.html"><i><stdlib.h></i></a>, <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	368 "../basedefs/unistd.h.html"><i><unistd.h></i></a></p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	369 </blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	370
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	371 <h4><a name="tag_03_131_11"></a>CHANGE HISTORY</h4>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	372
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	373 <blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	374 <p>First released in Issue 1. Derived from Issue 1 of the SVID.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	375 </blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	376
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	377 <h4><a name="tag_03_131_12"></a>Issue 5</h4>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	378
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	379 <blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	380 <p>The DESCRIPTION is updated for alignment with the POSIX Realtime Extension and the POSIX Threads Extension.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	381
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	382 <p>Interactions with the SA_NOCLDWAIT flag and SIGCHLD signal are further clarified.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	383
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	384 <p>The values of <i>status</i> from <i>exit</i>() are better described.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	385 </blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	386
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	387 <h4><a name="tag_03_131_13"></a>Issue 6</h4>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	388
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	389 <blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	390 <p>Extensions beyond the ISO C standard are marked.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	391
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	392 <p>The DESCRIPTION is updated for alignment with IEEE Std 1003.1j-2000 by adding semantics for typed memory.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	393
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	394 <p>The following changes are made for alignment with the ISO/IEC 9899:1999 standard:</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	395
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	396 <ul>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	397 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	398 <p>The <i>_Exit</i>() function is included.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	399 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	400
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	401 <li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	402 <p>The DESCRIPTION is updated.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	403 </li>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	404 </ul>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	405
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	406 <p>The description of tracing semantics is added for alignment with IEEE Std 1003.1q-2000.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	407
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	408 <p>References to the <i>wait3</i>() function are removed.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	409
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	410 <p>IEEE Std 1003.1-2001/Cor 1-2002, item XSH/TC1/D6/16 is applied, correcting grammar in the DESCRIPTION.</p>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	411 </blockquote>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	412
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	413 <div class="box"><em>End of informative text.</em></div>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	414
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	415 <hr size="2" noshade>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	416 <center><font size="2"><!--footer start-->
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	417 UNIX ® is a registered Trademark of The Open Group.<br>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	418 POSIX ® is a registered Trademark of The IEEE.<br>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	419 [ <a href="../mindex.html">Main Index</a> \| <a href="../basedefs/contents.html">XBD</a> \| <a href=
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	420 "../utilities/contents.html">XCU</a> \| <a href="../functions/contents.html">XSH</a> \| <a href="../xrat/contents.html">XRAT</a>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	421 ]</font></center>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	422
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	423 <!--footer end-->
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	424 <hr size="2" noshade>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	425 </body>
0eae4b049f93 <oerjan> fetch http://pubs.opengroup.org/onlinepubs/009695399/functions/_exit.html HackBot parents: diff changeset	426 </html>
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