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<html xmlns="http://www.w3.org/1999/xhtml">
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    <title>DbEnv::log_flush()</title>
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        <p>Library Version 11.2.5.3</p>
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      <table width="100%" summary="Navigation header">
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          <th colspan="3" align="center">DbEnv::log_flush()</th>
        </tr>
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          <td width="20%" align="left"><a accesskey="p" href="logfile.html">Prev</a> </td>
          <th width="60%" align="center">Chapter 8. 
                The DbLsn Handle
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    <div class="sect1" lang="en" xml:lang="en">
      <div class="titlepage">
        <div>
          <div>
            <h2 class="title" style="clear: both"><a id="logflush"></a>DbEnv::log_flush()</h2>
          </div>
        </div>
      </div>
      <pre class="programlisting">#include &lt;db_cxx.h&gt;
 
int
DbEnv::log_flush(const DbLsn *lsn);</pre>
      <p>
        The <code class="methodname">DbEnv::log_flush()</code> method writes log records to disk.
    </p>
      <p>
         The <code class="methodname">DbEnv::log_flush()</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">
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            <div>
              <h3 class="title"><a id="idp8326688"></a>Parameters</h3>
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        <div class="sect3" lang="en" xml:lang="en">
          <div class="titlepage">
            <div>
              <div>
                <h4 class="title"><a id="idp8326040"></a>lsn</h4>
              </div>
            </div>
          </div>
          <p>
                          All log records with <a class="link" href="lsn.html" title="Chapter 8.  The DbLsn Handle">DbLsn</a>  
                          values less than or equal
                          to the <span class="bold"><strong>lsn</strong></span> parameter are written to
                          disk.  If <span class="bold"><strong>lsn</strong></span> is NULL, all records in
                          the log are flushed.
                     </p>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="idp8318576"></a>Errors</h3>
            </div>
          </div>
        </div>
        <p>
                         The <code class="methodname">DbEnv::log_flush()</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="idp8332592"></a>EINVAL</h4>
              </div>
            </div>
          </div>
          <p>
                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="idp8331296"></a>Class</h3>
            </div>
          </div>
        </div>
        <p>
                    <a class="link" href="env.html" title="Chapter 5.  The DbEnv Handle">DbEnv</a>, 
                    <a class="link" href="logc.html" title="The DbLogc Handle">DbLogc</a>, 
                    <a class="link" href="lsn.html" title="Chapter 8.  The DbLsn Handle">DbLsn</a> 
            </p>
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      <div class="sect2" lang="en" xml:lang="en">
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            <div>
              <h3 class="title"><a id="idp8333888"></a>See Also</h3>
            </div>
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        <p>
                     <a class="xref" href="lsn.html#loglist" title="Logging Subsystem and Related Methods">Logging Subsystem and Related Methods</a> 
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            <a accesskey="u" href="lsn.html">Up</a>
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