static/freebsd/man3/pthread_cond_destroy.3 4.html


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<table class="head">
  <tr>
    <td class="head-ltitle">PTHREAD_COND_DESTROY(3)</td>
    <td class="head-vol">Library Functions Manual</td>
    <td class="head-rtitle">PTHREAD_COND_DESTROY(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_cond_destroy</code> &#x2014;
    <span class="Nd">destroy a condition variable</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.h</a>&gt;</code></p>
<p class="Pp"><var class="Ft">int</var>
  <br/>
  <code class="Fn">pthread_cond_destroy</code>(<var class="Fa" style="white-space: nowrap;">pthread_cond_t
    *cond</var>);</p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<p class="Pp">The
    <a class="permalink" href="#pthread_cond_destroy"><code class="Fn" id="pthread_cond_destroy">pthread_cond_destroy</code></a>()
    function frees the resources allocated by the condition variable
    <var class="Fa">cond</var>.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="IMPLEMENTATION_NOTES"><a class="permalink" href="#IMPLEMENTATION_NOTES">IMPLEMENTATION
  NOTES</a></h1>
<p class="Pp">A condition variable can be destroyed immediately after all the
    threads that are blocked on it are awakened.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN
  VALUES</a></h1>
<p class="Pp">If successful, the <code class="Fn">pthread_cond_destroy</code>()
    function will return zero, otherwise an error number will be returned to
    indicate the error.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="ERRORS"><a class="permalink" href="#ERRORS">ERRORS</a></h1>
<p class="Pp">The <code class="Fn">pthread_cond_destroy</code>() function will
    fail if:</p>
<dl class="Bl-tag">
  <dt id="EINVAL">[<a class="permalink" href="#EINVAL"><code class="Er">EINVAL</code></a>]</dt>
  <dd>The value specified by <var class="Fa">cond</var> is invalid.</dd>
  <dt id="EBUSY">[<a class="permalink" href="#EBUSY"><code class="Er">EBUSY</code></a>]</dt>
  <dd>The variable <var class="Fa">cond</var> is locked by another thread.</dd>
</dl>
</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">pthread_cond_broadcast(3)</a>,
    <a class="Xr">pthread_cond_init(3)</a>,
    <a class="Xr">pthread_cond_signal(3)</a>,
    <a class="Xr">pthread_cond_timedwait(3)</a>,
    <a class="Xr">pthread_cond_wait(3)</a></p>
</section>
<section class="Sh">
<h1 class="Sh" id="STANDARDS"><a class="permalink" href="#STANDARDS">STANDARDS</a></h1>
<p class="Pp">The <code class="Fn">pthread_cond_destroy</code>() function
    conforms to <span class="St">ISO/IEC 9945-1:1996
    (&#x201C;POSIX.1&#x201D;)</span>.</p>
</section>
</div>
<table class="foot">
  <tr>
    <td class="foot-date">July 28, 1998</td>
    <td class="foot-os">FreeBSD 15.0</td>
  </tr>
</table>