142 lines
5.0 KiB
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142 lines
5.0 KiB
HTML
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<title>pthread_attr_getstacksize</title>
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<basefont size="3"> <a name="pthread_attr_getstacksize"></a> <a name="tag_03_496"></a><!-- pthread_attr_getstacksize -->
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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_496_01"></a>NAME</h4>
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<blockquote>pthread_attr_getstacksize, pthread_attr_setstacksize - get and set the stacksize attribute</blockquote>
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<h4><a name="tag_03_496_02"></a>SYNOPSIS</h4>
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<blockquote class="synopsis">
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<div class="box"><code><tt><sup>[<a href="javascript:open_code('THR TSA')">THR TSA</a>]</sup> <img src="../images/opt-start.gif" alt=
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"[Option Start]" border="0"> #include <<a href="../basedefs/pthread.h.html">pthread.h</a>><br>
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<br>
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int pthread_attr_getstacksize(const pthread_attr_t *restrict</tt> <i>attr</i><tt>,<br>
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size_t *restrict</tt> <i>stacksize</i><tt>);<br>
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int pthread_attr_setstacksize(pthread_attr_t *</tt><i>attr</i><tt>, size_t</tt> <i>stacksize</i><tt>); <img src=
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"../images/opt-end.gif" alt="[Option End]" border="0"></tt></code></div>
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<tt><br>
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</tt></blockquote>
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<h4><a name="tag_03_496_03"></a>DESCRIPTION</h4>
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<blockquote>
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<p>The <i>pthread_attr_getstacksize</i>() and <i>pthread_attr_setstacksize</i>() functions, respectively, shall get and set the
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thread creation <i>stacksize</i> attribute in the <i>attr</i> object.</p>
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<p>The <i>stacksize</i> attribute shall define the minimum stack size (in bytes) allocated for the created threads stack.</p>
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</blockquote>
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<h4><a name="tag_03_496_04"></a>RETURN VALUE</h4>
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<blockquote>
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<p>Upon successful completion, <i>pthread_attr_getstacksize</i>() and <i>pthread_attr_setstacksize</i>() shall return a value of 0;
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otherwise, an error number shall be returned to indicate the error.</p>
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<p>The <i>pthread_attr_getstacksize</i>() function stores the <i>stacksize</i> attribute value in <i>stacksize</i> if
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successful.</p>
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</blockquote>
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<h4><a name="tag_03_496_05"></a>ERRORS</h4>
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<blockquote>
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<p>The <i>pthread_attr_setstacksize</i>() function shall fail if:</p>
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<dl compact>
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<dt>[EINVAL]</dt>
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<dd>The value of <i>stacksize</i> is less than {PTHREAD_STACK_MIN} or exceeds a system-imposed limit.</dd>
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</dl>
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<p>These functions shall not return an error code of [EINTR].</p>
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</blockquote>
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<hr>
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<div class="box"><em>The following sections are informative.</em></div>
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<h4><a name="tag_03_496_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_496_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_496_08"></a>RATIONALE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_496_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_496_10"></a>SEE ALSO</h4>
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<blockquote>
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<p><a href="pthread_attr_destroy.html"><i>pthread_attr_destroy</i>()</a> , <a href=
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"pthread_attr_getstackaddr.html"><i>pthread_attr_getstackaddr</i>()</a> , <a href=
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"pthread_attr_getdetachstate.html"><i>pthread_attr_getdetachstate</i>()</a> , <a href=
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"pthread_create.html"><i>pthread_create</i>()</a> , the Base Definitions volume of IEEE Std 1003.1-2001, <a href=
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"../basedefs/limits.h.html"><i><limits.h></i></a>, <a href="../basedefs/pthread.h.html"><i><pthread.h></i></a></p>
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</blockquote>
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<h4><a name="tag_03_496_11"></a>CHANGE HISTORY</h4>
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<blockquote>
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<p>First released in Issue 5. Included for alignment with the POSIX Threads Extension.</p>
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</blockquote>
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<h4><a name="tag_03_496_12"></a>Issue 6</h4>
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<blockquote>
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<p>The <i>pthread_attr_getstacksize</i>() and <i>pthread_attr_setstacksize</i>() functions are marked as part of the Threads and
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Thread Stack Address Attribute options.</p>
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<p>The <b>restrict</b> keyword is added to the <i>pthread_attr_getstacksize</i>() prototype for alignment with the
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ISO/IEC 9899:1999 standard.</p>
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</blockquote>
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<div class="box"><em>End of informative text.</em></div>
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