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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta name="generator" content="HTML Tidy, see www.w3.org"><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><link type="text/css" rel="stylesheet" href="style.css"><!-- Generated by The Open Group's rhtm tool v1.2.1 --><!-- Copyright (c) 2001-2003 The Open Group, All Rights Reserved --><title>pthread_attr_getstacksize</title></head><body bgcolor="white"><script type="text/javascript" language="JavaScript" src="../jscript/codes.js"></script><basefont size="3"> <a name="pthread_attr_getstacksize"></a> <a name="tag_03_496"></a><!-- pthread_attr_getstacksize --> <!--header start--><center><font size="2">The Open Group Base Specifications Issue 6<br>IEEE Std 1003.1, 2003 Edition<br>Copyright © 2001-2003 The IEEE and The Open Group, All Rights reserved.</font></center><!--header end--><hr size="2" noshade><h4><a name="tag_03_496_01"></a>NAME</h4><blockquote>pthread_attr_getstacksize, pthread_attr_setstacksize - get and set the stacksize attribute</blockquote><h4><a name="tag_03_496_02"></a>SYNOPSIS</h4><blockquote class="synopsis"><div class="box"><code><tt><sup>[<a href="javascript:open_code('THR TSS')">THR TSS</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0"> #include <<a href="../basedefs/pthread.h.html">pthread.h</a>><br><br> int pthread_attr_getstacksize(const pthread_attr_t *restrict</tt> <i>attr</i><tt>,<br> size_t *restrict</tt> <i>stacksize</i><tt>);<br> int pthread_attr_setstacksize(pthread_attr_t *</tt><i>attr</i><tt>, size_t</tt> <i>stacksize</i><tt>); <img src="../images/opt-end.gif" alt="[Option End]" border="0"></tt></code></div><tt><br></tt></blockquote><h4><a name="tag_03_496_03"></a>DESCRIPTION</h4><blockquote><p>The <i>pthread_attr_getstacksize</i>() and <i>pthread_attr_setstacksize</i>() functions, respectively, shall get and set thethread creation <i>stacksize</i> attribute in the <i>attr</i> object.</p><p>The <i>stacksize</i> attribute shall define the minimum stack size (in bytes) allocated for the created threads stack.</p></blockquote><h4><a name="tag_03_496_04"></a>RETURN VALUE</h4><blockquote><p>Upon successful completion, <i>pthread_attr_getstacksize</i>() and <i>pthread_attr_setstacksize</i>() shall return a value of 0;otherwise, an error number shall be returned to indicate the error.</p><p>The <i>pthread_attr_getstacksize</i>() function stores the <i>stacksize</i> attribute value in <i>stacksize</i> ifsuccessful.</p></blockquote><h4><a name="tag_03_496_05"></a>ERRORS</h4><blockquote><p>The <i>pthread_attr_setstacksize</i>() function shall fail if:</p><dl compact><dt>[EINVAL]</dt><dd>The value of <i>stacksize</i> is less than {PTHREAD_STACK_MIN} or exceeds a system-imposed limit.</dd></dl><p>These functions shall not return an error code of [EINTR].</p></blockquote><hr><div class="box"><em>The following sections are informative.</em></div><h4><a name="tag_03_496_06"></a>EXAMPLES</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_496_07"></a>APPLICATION USAGE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_496_08"></a>RATIONALE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_496_09"></a>FUTURE DIRECTIONS</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_496_10"></a>SEE ALSO</h4><blockquote><p><a href="pthread_attr_destroy.html"><i>pthread_attr_destroy</i>()</a> , <a href="pthread_attr_getstackaddr.html"><i>pthread_attr_getstackaddr</i>()</a> , <a href="pthread_attr_getdetachstate.html"><i>pthread_attr_getdetachstate</i>()</a> , <a href="pthread_create.html"><i>pthread_create</i>()</a> , the Base Definitions volume of IEEE Std 1003.1-2001, <a href="../basedefs/limits.h.html"><i><limits.h></i></a>, <a href="../basedefs/pthread.h.html"><i><pthread.h></i></a></p></blockquote><h4><a name="tag_03_496_11"></a>CHANGE HISTORY</h4><blockquote><p>First released in Issue 5. Included for alignment with the POSIX Threads Extension.</p></blockquote><h4><a name="tag_03_496_12"></a>Issue 6</h4><blockquote><p>The <i>pthread_attr_getstacksize</i>() and <i>pthread_attr_setstacksize</i>() functions are marked as part of the Threads andThread Stack Size Attribute options.</p><p>The <b>restrict</b> keyword is added to the <i>pthread_attr_getstacksize</i>() prototype for alignment with theISO/IEC 9899:1999 standard.</p><p>IEEE Std 1003.1-2001/Cor 1-2002, item XSH/TC1/D6/43 is applied, correcting the margin code in the SYNOPSIS from TSA toTSS and updating the CHANGE HISTORY from ``Thread Stack Address Attribute'' option to ``Thread Stack Size Attribute'' option.</p></blockquote><div class="box"><em>End of informative text.</em></div><hr><hr size="2" noshade><center><font size="2"><!--footer start-->UNIX ® is a registered Trademark of The Open Group.<br>POSIX ® is a registered Trademark of The IEEE.<br>[ <a href="../mindex.html">Main Index</a> | <a href="../basedefs/contents.html">XBD</a> | <a href="../utilities/contents.html">XCU</a> | <a href="../functions/contents.html">XSH</a> | <a href="../xrat/contents.html">XRAT</a>]</font></center><!--footer end--><hr size="2" noshade></body></html>⌨️ 快捷键说明
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