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-<table class="head">
- <tr>
- <td class="head-ltitle">UIDINFO(9)</td>
- <td class="head-vol">Kernel Developer's Manual</td>
- <td class="head-rtitle">UIDINFO(9)</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">uidinfo</code>,
- <code class="Nm">uihashinit</code>, <code class="Nm">uifind</code>,
- <code class="Nm">uihold</code>, <code class="Nm">uifree</code> &#x2014;
- <span class="Nd">functions for managing UID information</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">sys/param.h</a>&gt;</code>
- <br/>
- <code class="In">#include &lt;<a class="In">sys/proc.h</a>&gt;</code>
- <br/>
- <code class="In">#include
- &lt;<a class="In">sys/resourcevar.h</a>&gt;</code></p>
-<p class="Pp"><var class="Ft">void</var>
- <br/>
- <code class="Fn">uihashinit</code>(<var class="Fa" style="white-space: nowrap;">void</var>);</p>
-<p class="Pp"><var class="Ft">struct uidinfo *</var>
- <br/>
- <code class="Fn">uifind</code>(<var class="Fa" style="white-space: nowrap;">uid_t
- uid</var>);</p>
-<p class="Pp"><var class="Ft">void</var>
- <br/>
- <code class="Fn">uihold</code>(<var class="Fa" style="white-space: nowrap;">struct
- uidinfo *uip</var>);</p>
-<p class="Pp"><var class="Ft">void</var>
- <br/>
- <code class="Fn">uifree</code>(<var class="Fa" style="white-space: nowrap;">struct
- uidinfo *uip</var>);</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
-<p class="Pp">The <code class="Nm">uidinfo</code> family of functions is used to
- manage <var class="Vt">uidinfo</var> structures. Each
- <var class="Vt">uidinfo</var> structure maintains per uid resource
- consumption counts, including the process count and socket buffer space
- usage.</p>
-<p class="Pp" id="uihashinit">The
- <a class="permalink" href="#uihashinit"><code class="Fn">uihashinit</code></a>()
- function initializes the <var class="Vt">uidinfo</var> hash table and its
- mutex. This function should only be called during system initialization.</p>
-<p class="Pp" id="uifind">The
- <a class="permalink" href="#uifind"><code class="Fn">uifind</code></a>()
- function looks up and returns the <var class="Vt">uidinfo</var> structure
- for <var class="Fa">uid</var>. If no <var class="Vt">uidinfo</var> structure
- exists for <var class="Fa">uid</var>, a new structure will be allocated and
- initialized. The <code class="Nm">uidinfo</code> hash mutex is acquired and
- released.</p>
-<p class="Pp" id="uihold">The
- <a class="permalink" href="#uihold"><code class="Fn">uihold</code></a>()
- function increases the reference count on <var class="Fa">uip</var>.
- <var class="Fa">uip</var>'s lock is acquired and released.</p>
-<p class="Pp" id="uifree">The
- <a class="permalink" href="#uifree"><code class="Fn">uifree</code></a>()
- function decreases the reference count on <var class="Fa">uip</var>, and if
- the count reaches 0 <var class="Fa">uip</var> is freed.
- <var class="Fa">uip</var>'s lock is acquired and release and the uidinfo
- hash mutex may be acquired and released.</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN
- VALUES</a></h1>
-<p class="Pp"><code class="Fn">uifind</code>() returns a pointer to an
- initialized <var class="Vt">uidinfo</var> structure, and should not
- fail.</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
-<p class="Pp">This manual page was written by <span class="An">Chad David</span>
- &lt;<a class="Mt" href="mailto:davidc@acns.ab.ca">davidc@acns.ab.ca</a>&gt;.</p>
-</section>
-</div>
-<table class="foot">
- <tr>
- <td class="foot-date">July 10, 2001</td>
- <td class="foot-os">FreeBSD 15.0</td>
- </tr>
-</table>