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+<table class="head">
+ <tr>
+ <td class="head-ltitle">PTHREAD_NP(3)</td>
+ <td class="head-vol">Library Functions Manual</td>
+ <td class="head-rtitle">PTHREAD_NP(3)</td>
+ </tr>
+</table>
+<div class="manual-text">
+<section class="Sh">
+<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
+<p class="Pp"><code class="Nm">pthread_np</code> &#x2014;
+ <span class="Nd">FreeBSD extensions to POSIX thread functions</span></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="LIBRARY"><a class="permalink" href="#LIBRARY">LIBRARY</a></h1>
+<p class="Pp"><span class="Lb">POSIX Threads Library (libpthread,
+ -lpthread)</span></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
+<p class="Pp"><code class="In">#include
+ &lt;<a class="In">pthread_np.h</a>&gt;</code></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
+<p class="Pp">This manual page documents extensions to the POSIX thread
+ functions. These extensions may or may not be portable to other operating
+ systems.</p>
+<p class="Pp">The POSIX thread functions are summarized in this section in the
+ following groups:</p>
+<p class="Pp"></p>
+<ul class="Bl-bullet Bd-indent Bl-compact">
+ <li>Thread Routines</li>
+ <li>Attribute Object Routines</li>
+ <li>Mutex Routines</li>
+</ul>
+<section class="Ss">
+<h2 class="Ss" id="Thread_Routines"><a class="permalink" href="#Thread_Routines">Thread
+ Routines</a></h2>
+<dl class="Bl-tag">
+ <dt id="pthread_getaffinity_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_getaffinity_np"><code class="Fn">pthread_getaffinity_np</code></a>(<var class="Fa">pthread_t
+ td</var>, <var class="Fa">size_t cpusetsize</var>, <var class="Fa">cpuset_t
+ *cpusetp</var>);</dt>
+ <dd>Get the CPU affinity of a specified thread.</dd>
+ <dt id="pthread_get_name_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_get_name_np"><code class="Fn">pthread_get_name_np</code></a>(<var class="Fa">pthread_t
+ thread</var>, <var class="Fa">char *name</var>, <var class="Fa">size_t
+ len</var>)</dt>
+ <dd>Get the name of a specified thread.</dd>
+ <dt id="pthread_getname_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_getname_np"><code class="Fn">pthread_getname_np</code></a>(<var class="Fa">pthread_t
+ thread</var>, <var class="Fa">char *name</var>, <var class="Fa">size_t
+ len</var>)</dt>
+ <dd>Get the name of a specified thread.</dd>
+ <dt id="pthread_getthreadid_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_getthreadid_np"><code class="Fn">pthread_getthreadid_np</code></a>(<var class="Fa">void</var>)</dt>
+ <dd>Get the calling thread's integral ID.</dd>
+ <dt id="pthread_main_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_main_np"><code class="Fn">pthread_main_np</code></a>(<var class="Fa">void</var>)</dt>
+ <dd>Identify the initial thread.</dd>
+ <dt id="pthread_multi_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_multi_np"><code class="Fn">pthread_multi_np</code></a>(<var class="Fa">void</var>)</dt>
+ <dd>Sets the thread's scheduling mode to multi-threaded.</dd>
+ <dt id="pthread_peekjoin_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_peekjoin_np"><code class="Fn">pthread_peekjoin_np</code></a>(<var class="Fa">pthread_t
+ thread</var>, <var class="Fa">void **value_ptr</var>)</dt>
+ <dd>Peek into the exit status of a specified thread.</dd>
+ <dt id="pthread_resume_all_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_resume_all_np"><code class="Fn">pthread_resume_all_np</code></a>(<var class="Fa">void</var>)</dt>
+ <dd>Resume all suspended threads.</dd>
+ <dt id="pthread_setaffinity_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_setaffinity_np"><code class="Fn">pthread_setaffinity_np</code></a>(<var class="Fa">pthread_t
+ td</var>, <var class="Fa">size_t cpusetsize</var>, <var class="Fa">const
+ cpuset_t *cpusetp</var>);</dt>
+ <dd>Set the CPU affinity of a specified thread.</dd>
+ <dt id="pthread_set_name_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_set_name_np"><code class="Fn">pthread_set_name_np</code></a>(<var class="Fa">pthread_t
+ thread</var>, <var class="Fa">char *name</var>)</dt>
+ <dd>Sets the specified thread's name.</dd>
+ <dt id="pthread_setname_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_setname_np"><code class="Fn">pthread_setname_np</code></a>(<var class="Fa">pthread_t
+ thread</var>, <var class="Fa">char *name</var>)</dt>
+ <dd>Sets the specified thread's name.</dd>
+ <dt id="pthread_signals_block_np"><var class="Ft">void</var>
+ <a class="permalink" href="#pthread_signals_block_np"><code class="Fn">pthread_signals_block_np</code></a>(<var class="Fa">void</var>)</dt>
+ <dd>Blocks all asynchronous signals, quickly.</dd>
+ <dt id="pthread_single_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_single_np"><code class="Fn">pthread_single_np</code></a>(<var class="Fa">void</var>)</dt>
+ <dd>Sets the thread's scheduling mode to single-threaded.</dd>
+ <dt id="pthread_suspend_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_suspend_np"><code class="Fn">pthread_suspend_np</code></a>(<var class="Fa">pthread_t
+ tid</var>)</dt>
+ <dd>Suspend the specified thread.</dd>
+ <dt id="pthread_suspend_all_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_suspend_all_np"><code class="Fn">pthread_suspend_all_np</code></a>(<var class="Fa">void</var>)</dt>
+ <dd>Suspend all active threads.</dd>
+ <dt id="pthread_timedjoin_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_timedjoin_np"><code class="Fn">pthread_timedjoin_np</code></a>(<var class="Fa">pthread_t
+ thread</var>, <var class="Fa">void **value_ptr</var>, <var class="Fa">const
+ struct timespec *abstime</var>);</dt>
+ <dd>A variant of
+ <a class="permalink" href="#pthread_join"><code class="Fn" id="pthread_join">pthread_join</code></a>()
+ with a timeout.</dd>
+</dl>
+</section>
+<section class="Ss">
+<h2 class="Ss" id="Attribute_Object_Routines"><a class="permalink" href="#Attribute_Object_Routines">Attribute
+ Object Routines</a></h2>
+<dl class="Bl-tag">
+ <dt id="pthread_attr_get_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_attr_get_np"><code class="Fn">pthread_attr_get_np</code></a>(<var class="Fa">pthread_t
+ pid</var>, <var class="Fa">pthread_attr_t *dst</var>);</dt>
+ <dd>Get the attributes of an existent thread.</dd>
+ <dt id="pthread_attr_getaffinity_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_attr_getaffinity_np"><code class="Fn">pthread_attr_getaffinity_np</code></a>(<var class="Fa">const
+ pthread_attr_t *pattr</var>, <var class="Fa">size_t cpusetsize</var>,
+ <var class="Fa">cpuset_t *cpusetp</var>);</dt>
+ <dd>Get the CPU affinity mask from the thread attribute object.</dd>
+ <dt id="pthread_attr_setaffinity_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_attr_setaffinity_np"><code class="Fn">pthread_attr_setaffinity_np</code></a>(<var class="Fa">pthread_attr_t
+ *pattr</var>, <var class="Fa">size_t cpusetsize</var>, <var class="Fa">const
+ cpuset_t *cpusetp</var>);</dt>
+ <dd>Set the CPU affinity mask for the thread attribute object.</dd>
+ <dt id="pthread_attr_setcreatesuspend_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_attr_setcreatesuspend_np"><code class="Fn">pthread_attr_setcreatesuspend_np</code></a>(<var class="Fa">pthread_attr_t
+ *attr</var>)</dt>
+ <dd>Permit creation of suspended threads.</dd>
+</dl>
+</section>
+<section class="Ss">
+<h2 class="Ss" id="Mutex_Routines"><a class="permalink" href="#Mutex_Routines">Mutex
+ Routines</a></h2>
+<dl class="Bl-tag">
+ <dt id="pthread_mutexattr_getkind_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_mutexattr_getkind_np"><code class="Fn">pthread_mutexattr_getkind_np</code></a>(<var class="Fa">pthread_mutexattr_t
+ attr</var>)</dt>
+ <dd>Deprecated, use <a class="Xr">pthread_mutexattr_gettype(3)</a>
+ instead.</dd>
+ <dt id="pthread_mutexattr_setkind_np"><var class="Ft">int</var>
+ <a class="permalink" href="#pthread_mutexattr_setkind_np"><code class="Fn">pthread_mutexattr_setkind_np</code></a>(<var class="Fa">pthread_mutexattr_t
+ *attr</var>)</dt>
+ <dd>Deprecated, use <a class="Xr">pthread_mutexattr_settype(3)</a>
+ instead.</dd>
+</dl>
+</section>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
+ ALSO</a></h1>
+<p class="Pp"><a class="Xr">libthr(3)</a>, <a class="Xr">pthread(3)</a>,
+ <a class="Xr">pthread_affinity_np(3)</a>,
+ <a class="Xr">pthread_attr_affinity_np(3)</a>,
+ <a class="Xr">pthread_attr_get_np(3)</a>,
+ <a class="Xr">pthread_attr_setcreatesuspend_np(3)</a>,
+ <a class="Xr">pthread_getthreadid_np(3)</a>,
+ <a class="Xr">pthread_join(3)</a>, <a class="Xr">pthread_main_np(3)</a>,
+ <a class="Xr">pthread_multi_np(3)</a>,
+ <a class="Xr">pthread_mutexattr_getkind_np(3)</a>,
+ <a class="Xr">pthread_resume_all_np(3)</a>,
+ <a class="Xr">pthread_resume_np(3)</a>,
+ <a class="Xr">pthread_set_name_np(3)</a>,
+ <a class="Xr">pthread_signals_block_np(3)</a>,
+ <a class="Xr">pthread_suspend_all_np(3)</a>,
+ <a class="Xr">pthread_suspend_np(3)</a>,
+ <a class="Xr">pthread_switch_add_np(3)</a></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="STANDARDS"><a class="permalink" href="#STANDARDS">STANDARDS</a></h1>
+<p class="Pp">All of these functions are non-portable extensions to POSIX
+ threads.</p>
+</section>
+</div>
+<table class="foot">
+ <tr>
+ <td class="foot-date">October 12, 2021</td>
+ <td class="foot-os">FreeBSD 15.0</td>
+ </tr>
+</table>