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<?xml version="1.0" encoding="utf-8"?>
<refentry xml:id='function.pcntl-unshare' xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>pcntl_unshare</refname>
<refpurpose>Dissociates parts of the process execution context</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>pcntl_unshare</methodname>
<methodparam><type>int</type><parameter>flags</parameter></methodparam>
</methodsynopsis>
<para>
<function>pcntl_unshare</function> allows a process to disassociate parts of its execution context that are
currently being shared with other processes.
The main use of <function>pcntl_unshare</function> is to allow a process to control
its shared execution context without creating a new process.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>flags</parameter></term>
<listitem>
<para>
The <parameter>flags</parameter> parameter is a bitmask that specifies which parts of the execution context should be unshared.
This parameter is specified by ORing together zero or more of the <literal>CLONE_*</literal> constants:
<simplelist>
<member><constant>CLONE_NEWNS</constant></member>
<member><constant>CLONE_NEWIPC</constant></member>
<member><constant>CLONE_NEWUTS</constant></member>
<member><constant>CLONE_NEWNET</constant></member>
<member><constant>CLONE_NEWPID</constant></member>
<member><constant>CLONE_NEWUSER</constant></member>
<member><constant>CLONE_NEWCGROUP</constant></member>
</simplelist>
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns <literal>0</literal> on success, <literal>-1</literal> otherwise.
On failure it sets an error code, that can be retrieved with <function>pcntl_get_last_error</function>.
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><link linkend="pcntl.constants.clone">PCNTL Constants</link></member>
<member><function>pcntl_get_last_error</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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