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<h2 class="title" style="clear: both"><a id="repmgrstat"></a>DbEnv::repmgr_stat()</h2>
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</div>
<pre class="programlisting">#include <db_cxx.h>
int
DbEnv::repmgr_stat(DB_REPMGR_STAT **statp, u_int32_t flags); </pre>
<p>
The <code class="methodname">DbEnv::repmgr_stat()</code> method returns the Replication Manager
statistics.
</p>
<p>
The <code class="methodname">DbEnv::repmgr_stat()</code> method creates a statistical structure of
type <code class="literal">DB_REPMGR_STAT</code> and copies a pointer to it into a user-specified
memory location.
</p>
<p>
Statistical structures are stored in allocated memory. If application-specific allocation
routines have been declared (see <a class="xref" href="envset_alloc.html" title="DbEnv::set_alloc()">DbEnv::set_alloc()</a>
for more information), they are used to allocate the memory; otherwise, the standard
C library <span class="bold"><strong>malloc</strong></span>(3) is used. The caller is responsible
for deallocating the memory. To deallocate the memory, free the memory reference;
references inside the returned memory need not be individually freed.
</p>
<p>
The following <code class="literal">DB_REPMGR_STAT</code> fields will be filled in:
</p>
<div class="itemizedlist">
<ul type="disc">
<li>
<p>
<span class="bold"><strong>uintmax_t st_connect_fail;</strong></span>
</p>
<p>
The number of times an attempt to open a new TCP/IP connection failed.
</p>
</li>
<li>
<p>
<span class="bold"><strong>uintmax_t st_connection_drop;</strong></span>
</p>
<p>
The number of times an existing TCP/IP connection
failed.
</p>
</li>
<li>
<p>
<span class="bold"><strong>uintmax_t st_msgs_dropped;</strong></span>
</p>
<p>
The number of outgoing messages that were completely dropped, because
the outgoing message queue was full. (Berkeley DB replication is
tolerant of dropped messages, and will automatically request
retransmission of any missing messages as needed.)
</p>
</li>
<li>
<p>
<span class="bold"><strong>uintmax_t st_msgs_queued;</strong></span>
</p>
<p>
The number of outgoing messages which could not be transmitted
immediately, due to a full network buffer, and had to be queued for
later delivery.
</p>
</li>
<li>
<p>
<span class="bold"><strong>uintmax_t st_perm_failed;</strong></span>
</p>
<p>
The number of times a message critical for maintaining database
integrity (for example, a transaction commit), originating at this
site, did not receive sufficient acknowledgement from clients,
according to the configured acknowledgement policy and acknowledgement
timeout.
</p>
</li>
<li>
<p>
<span class="bold"><strong>uintmax_t st_elect_threads;</strong></span>
</p>
<p>
The number of currently active election threads.
</p>
</li>
<li>
<p>
<span class="bold"><strong>uintmax_t st_max_elect_threads;</strong></span>
</p>
<p>
The number of election threads for which space is reserved.
</p>
</li>
</ul>
</div>
<p>
The <code class="methodname">DbEnv::repmgr_stat()</code> method may not be called before the
<a class="xref" href="envopen.html" title="DbEnv::open()">DbEnv::open()</a> method is called.
</p>
<p>
The <code class="methodname">DbEnv::repmgr_stat()</code> <span>
<span>
method either returns a non-zero error value or throws an
exception that encapsulates a non-zero error value on
failure, and returns 0 on success.
</span>
</span>
</p>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="idp9992152"></a>Parameters</h3>
</div>
</div>
</div>
<div class="sect3" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a id="idp9991248"></a>statp</h4>
</div>
</div>
</div>
<p>
The <span class="bold"><strong>statp</strong></span> parameter references memory
into which a pointer to the allocated statistics structure is copied.
</p>
</div>
<div class="sect3" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a id="idp9945752"></a>flags</h4>
</div>
</div>
</div>
<p>
The <span class="bold"><strong>flags</strong></span> parameter must be set to 0
or the following value:
</p>
<div class="itemizedlist">
<ul type="disc">
<li>
<p>
<code class="literal">DB_STAT_CLEAR</code>
</p>
<p>
Reset statistics after returning their values.
</p>
</li>
</ul>
</div>
</div>
</div>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="idp10001464"></a>Errors</h3>
</div>
</div>
</div>
<p>
The <code class="methodname">DbEnv::repmgr_stat()</code> <span>
<span>
method may fail and throw a <a class="link" href="dbexception.html" title="Chapter 6. The DbException Class">DbException</a>
exception, encapsulating one of the following non-zero errors, or 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="idp10009304"></a>EINVAL</h4>
</div>
</div>
</div>
<p>
If the method was called before <a class="xref" href="envopen.html" title="DbEnv::open()">DbEnv::open()</a>
was called; 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="idp10005936"></a>Class</h3>
</div>
</div>
</div>
<p>
<a class="link" href="env.html" title="Chapter 5. The DbEnv Handle">DbEnv</a>
</p>
</div>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="idp10003992"></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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