php-doc-en/reference/sem/functions/msg-get-queue.xml

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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.msg-get-queue">
 <refnamediv>
  <refname>msg_get_queue</refname>
  <refpurpose>Create or attach to a message queue</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>resource</type><methodname>msg_get_queue</methodname>
   <methodparam><type>int</type><parameter>key</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>perms</parameter><initializer>0666</initializer></methodparam>
  </methodsynopsis>
  <para>
   <function>msg_get_queue</function> returns an id that can be used to
   access the System V message queue with the given
   <parameter>key</parameter>. The first call creates the message queue with
   the optional <parameter>perms</parameter>.
   A second call to <function>msg_get_queue</function> for the same
   <parameter>key</parameter> will return a different message queue
   identifier, but both identifiers access the same underlying message
   queue.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>key</parameter></term>
     <listitem>
      <para>
       Message queue numeric ID
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>perms</parameter></term>
     <listitem>
      <para>
       Queue permissions. Default to 0666. If the message queue already
       exists, the <parameter>perms</parameter> will be ignored.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns a resource handle that can be used to access the System V message queue.
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>msg_remove_queue</function></member>
    <member><function>msg_receive</function></member>
    <member><function>msg_send</function></member>
    <member><function>msg_stat_queue</function></member>
    <member><function>msg_set_queue</function></member>
   </simplelist>
  </para>
 </refsect1>  

</refentry>

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