mqseries-back.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.mqseries-back" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>mqseries_back</refname>
  <refpurpose>MQSeries MQBACK</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>void</type><methodname>mqseries_back</methodname>
   <methodparam><type>resource</type><parameter>hconn</parameter></methodparam>
   <methodparam><type>resource</type><parameter role="reference">compCode</parameter></methodparam>
   <methodparam><type>resource</type><parameter role="reference">reason</parameter></methodparam>
  </methodsynopsis>
  <para>
   The
   <function>mqseries_back</function>
   (MQBACK) call indicates to the queue manager that all the message gets and
   puts that have occurred since the last syncpoint are to be backed out.
   Messages put as part of a unit of work are deleted; messages retrieved as
   part of a unit of work are reinstated on the queue.
  </para>
  <para>
   Using
   <function>mqseries_back</function>
   only works in conjunction with
   <function>mqseries_begin</function>
   and only function when connecting directly to a Queueu manager. Not via the
   mqclient interface.
  </para>
 </refsect1>
 
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term>
      <parameter>hConn</parameter>
     </term>
     <listitem>
      <para>Connection handle.</para>
      <para>This handle represents the connection to the queue manager.</para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term>
      <parameter>compCode</parameter>
     </term>
     <listitem>
      <para>Completion code.</para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term>
      <parameter>reason</parameter>
     </term>
     <listitem>
      <para>Reason code qualifying the compCode.</para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>&return.void;</para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>
     <function>mqseries_back</function>
     example
    </title>
    <programlisting role="php">
<![CDATA[
<?php
    mqseries_back($conn, $comp_code, $reason);

    if ($comp_code !== MQSERIES_MQCC_OK) {
        printf("CompCode:%d Reason:%d Text:%s<br>\n", $comp_code, $reason, mqseries_strerror($reason));
    }
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="notes">
  &reftitle.notes;
  <note>
   <para>
    <function>mqseries_back</function>
    will not function when using MQSeries Client to connect to a Queueu Manager.
   </para>
  </note>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>mqseries_conn</function></member>
    <member><function>mqseries_connx</function></member>
    <member><function>mqseries_begin</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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