static/freebsd/man9/pseudofs.9 4.html


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<table class="head">
  <tr>
    <td class="head-ltitle">PSEUDOFS(9)</td>
    <td class="head-vol">Kernel Developer's Manual</td>
    <td class="head-rtitle">PSEUDOFS(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">pseudofs</code> &#x2014; <span class="Nd">pseudo
    file system construction kit</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">fs/pseudofs/pseudofs.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">The <code class="Nm">pseudofs</code> module offers an abstract API
    for pseudo-file systems such as <a class="Xr">procfs(4)</a> and
    <a class="Xr">linprocfs(4)</a>. It takes care of all the hairy bits like
    interfacing with the VFS system, enforcing access control, keeping track of
    file numbers, and cloning files and directories that are process-specific.
    The consumer module, i.e., the module that implements the actual guts of the
    file system, needs only provide the directory structure (represented by a
    collection of structures declared and initialized by macros provided by
    <code class="Nm">pseudofs</code>) and callbacks that report file attributes
    or write the actual file contents into sbufs.</p>
</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">linprocfs(4)</a>, <a class="Xr">linsysfs(4)</a>,
    <a class="Xr">procfs(4)</a>, <a class="Xr">sbuf(9)</a>,
    <a class="Xr">vnode(9)</a></p>
</section>
<section class="Sh">
<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
<p class="Pp">The <code class="Nm">pseudofs</code> module appeared in
    <span class="Ux">FreeBSD 5.0</span>.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
<p class="Pp">The <code class="Nm">pseudofs</code> module and this manual page
    were written by <span class="An">Dag-Erling Sm&#x00F8;rgrav</span>
    &lt;<a class="Mt" href="mailto:des@FreeBSD.org">des@FreeBSD.org</a>&gt;.</p>
</section>
</div>
<table class="foot">
  <tr>
    <td class="foot-date">April 20, 2007</td>
    <td class="foot-os">FreeBSD 15.0</td>
  </tr>
</table>