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<th colspan="3" align="center">DB_ENV->rep_sync()</th>
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<th width="60%" align="center">Chapter 10.
Replication Methods
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<div class="sect1" lang="en" xml:lang="en">
<div class="titlepage">
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<div>
<h2 class="title" style="clear: both"><a id="repsync"></a>DB_ENV->rep_sync()</h2>
</div>
</div>
</div>
<pre class="programlisting">#include <db.h>
int
DB_ENV->rep_sync(DB_ENV *env, u_int32_t flags); </pre>
<p>
The <code class="methodname">DB_ENV->rep_sync()</code> method forces master synchronization to begin
for this client. This method is the other half of setting the
<a class="link" href="repconfig.html#config_DB_REP_CONF_DELAYCLIENT">DB_REP_CONF_DELAYCLIENT</a>
flag via the <a class="xref" href="repconfig.html" title="DB_ENV->rep_set_config()">DB_ENV->rep_set_config()</a>
method.
</p>
<p>
If an application has configured delayed master synchronization, the
application must synchronize explicitly (otherwise the client will
remain out-of-date and will ignore all database changes forwarded from
the replication group master). The <code class="methodname">DB_ENV->rep_sync()</code> method may be
called any time after the client application learns that the new
master has been established (by receiving a
<a class="link" href="envevent_notify.html#event_notify_DB_EVENT_REP_NEWMASTER">DB_EVENT_REP_NEWMASTER</a>
event notification).
</p>
<p>
Before calling this method, the enclosing database environment must
already have been opened by calling the
<a class="xref" href="envopen.html" title="DB_ENV->open()">DB_ENV->open()</a> method and must
already have been configured to send replication messages by
calling the <a class="xref" href="reptransport.html" title="DB_ENV->rep_set_transport()">DB_ENV->rep_set_transport()</a>
method.
</p>
<p>
The <code class="methodname">DB_ENV->rep_sync()</code> <span>
<span>
method returns a non-zero error value on failure and 0 on success.
</span>
</span>
</p>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="idp54340976"></a>Parameters</h3>
</div>
</div>
</div>
<div class="sect3" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a id="idp54333320"></a>flags</h4>
</div>
</div>
</div>
<p>
The <span class="bold"><strong>flags</strong></span> parameter is currently
unused, and must be set to 0.
</p>
</div>
</div>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="idp54348440"></a>Errors</h3>
</div>
</div>
</div>
<p>
The <code class="methodname">DB_ENV->rep_sync()</code> <span>
<span>
method may fail and return one of the following non-zero errors:
</span>
</span>
</p>
<div class="sect3" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a id="idp54346864"></a>EINVAL</h4>
</div>
</div>
</div>
<p>
If the database environment was not already configured to communicate
with a replication group by a call to
<a class="xref" href="reptransport.html" title="DB_ENV->rep_set_transport()">DB_ENV->rep_set_transport()</a>;
the database environment was not already opened;
or if an invalid flag value or parameter was specified.
</p>
</div>
</div>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="idp54337968"></a>Class</h3>
</div>
</div>
</div>
<p>
<a class="link" href="env.html" title="Chapter 5. The DB_ENV Handle">DB_ENV</a>
</p>
</div>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="idp54355736"></a>See Also</h3>
</div>
</div>
</div>
<p>
<a class="xref" href="rep.html#replist" title="Replication and Related Methods">Replication and Related Methods</a>
</p>
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