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


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<table class="head">
  <tr>
    <td class="head-ltitle">PTHREAD_RWLOCK_DESTROY(3)</td>
    <td class="head-vol">Library Functions Manual</td>
    <td class="head-rtitle">PTHREAD_RWLOCK_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_rwlock_destroy</code> &#x2014;
    <span class="Nd">destroy a read/write lock</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_rwlock_destroy</code>(<var class="Fa" style="white-space: nowrap;">pthread_rwlock_t
    *lock</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_rwlock_destroy"><code class="Fn" id="pthread_rwlock_destroy">pthread_rwlock_destroy</code></a>()
    function is used to destroy a read/write lock previously created with
    <a class="permalink" href="#pthread_rwlock_init"><code class="Fn" id="pthread_rwlock_init">pthread_rwlock_init</code></a>().</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_rwlock_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_rwlock_destroy</code>() function will
    fail if:</p>
<dl class="Bl-tag">
  <dt id="EPERM">[<a class="permalink" href="#EPERM"><code class="Er">EPERM</code></a>]</dt>
  <dd>The caller does not have the privilege to perform the operation.</dd>
</dl>
<p class="Pp">The <code class="Fn">pthread_rwlock_destroy</code>() function may
    fail if:</p>
<dl class="Bl-tag">
  <dt id="EBUSY">[<a class="permalink" href="#EBUSY"><code class="Er">EBUSY</code></a>]</dt>
  <dd>The system has detected an attempt to destroy the object referenced by
      <var class="Fa">lock</var> while it is locked.</dd>
  <dt id="EINVAL">[<a class="permalink" href="#EINVAL"><code class="Er">EINVAL</code></a>]</dt>
  <dd>The value specified by <var class="Fa">lock</var> is invalid.</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_rwlock_init(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_rwlock_destroy</code>() function is
    expected to conform to <span class="St">Version&#x00A0;2 of the Single UNIX
    Specification (&#x201C;SUSv2&#x201D;)</span>.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
<p class="Pp">The <code class="Fn">pthread_rwlock_destroy</code>() function
    first appeared in <span class="Ux">FreeBSD 3.0</span>.</p>
</section>
</div>
<table class="foot">
  <tr>
    <td class="foot-date">August 4, 1998</td>
    <td class="foot-os">FreeBSD 15.0</td>
  </tr>
</table>