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<div class="refentry">
<a name="boost.interprocess.permissions"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle">Class permissions</span></h2>
<p>boost::interprocess::permissions</p>
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<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../interprocess/indexes_reference.html#header.boost.interprocess.permissions_hpp" title="Header <boost/interprocess/permissions.hpp>">boost/interprocess/permissions.hpp</a>>
</span>
<span class="keyword">class</span> <a class="link" href="permissions.html" title="Class permissions">permissions</a> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
<span class="comment">// <a class="link" href="permissions.html#boost.interprocess.permissionsconstruct-copy-destruct">construct/copy/destruct</a></span>
<a class="link" href="permissions.html#idp56044384-bb"><span class="identifier">permissions</span></a><span class="special">(</span><span class="identifier">os_permissions_type</span><span class="special">)</span><span class="special">;</span>
<a class="link" href="permissions.html#idp56045840-bb"><span class="identifier">permissions</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="comment">// <a class="link" href="permissions.html#idp56037424-bb">public member functions</a></span>
<span class="keyword">void</span> <a class="link" href="permissions.html#idp56037984-bb"><span class="identifier">set_default</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">void</span> <a class="link" href="permissions.html#idp56039328-bb"><span class="identifier">set_unrestricted</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">void</span> <a class="link" href="permissions.html#idp56040656-bb"><span class="identifier">set_permissions</span></a><span class="special">(</span><span class="identifier">os_permissions_type</span><span class="special">)</span><span class="special">;</span>
<span class="identifier">os_permissions_type</span> <a class="link" href="permissions.html#idp56042656-bb"><span class="identifier">get_permissions</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp278245200"></a><h2>Description</h2>
<p>The permissions class represents permissions to be set to shared memory or files, that can be constructed form usual permission representations: a SECURITY_ATTRIBUTES pointer in windows or ORed rwx chmod integer in UNIX. </p>
<div class="refsect2">
<a name="idp278246112"></a><h3>
<a name="boost.interprocess.permissionsconstruct-copy-destruct"></a><code class="computeroutput">permissions</code>
public
construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><a name="idp56044384-bb"></a><span class="identifier">permissions</span><span class="special">(</span><span class="identifier">os_permissions_type</span> type<span class="special">)</span><span class="special">;</span></pre>
<p>Constructs a permissions object from a user provided os-dependent permissions. </p>
</li>
<li class="listitem">
<pre class="literallayout"><a name="idp56045840-bb"></a><span class="identifier">permissions</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Constructs a default permissions object: A null security attributes pointer for windows or 0644 for UNIX. </p>
</li>
</ol></div>
</div>
<div class="refsect2">
<a name="idp278256944"></a><h3>
<a name="idp56037424-bb"></a><code class="computeroutput">permissions</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idp56037984-bb"></a><span class="identifier">set_default</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Sets permissions to default values: A null security attributes pointer for windows or 0644 for UNIX. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idp56039328-bb"></a><span class="identifier">set_unrestricted</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Sets permissions to unrestricted access: A null DACL for windows or 0666 for UNIX. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idp56040656-bb"></a><span class="identifier">set_permissions</span><span class="special">(</span><span class="identifier">os_permissions_type</span> perm<span class="special">)</span><span class="special">;</span></pre>
<p>Sets permissions from a user provided os-dependent permissions. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">os_permissions_type</span> <a name="idp56042656-bb"></a><span class="identifier">get_permissions</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns stored os-dependent permissions </p>
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