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<b>DB_ENV-&gt;log_flush</b>
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<b><pre>
#include &lt;db.h&gt;
<p>
int
DB_ENV-&gt;log_flush(DB_ENV *env, const DB_LSN *lsn);
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<b>Description: DB_ENV-&gt;log_flush</b>
<p>The DB_ENV-&gt;log_flush method writes log records to disk.</p>
<p>The DB_ENV-&gt;log_flush method
returns a non-zero error value on failure
and 0 on success.
</p>
<b>Parameters</b> <br>
 <b>lsn</b><ul compact><li>All log records with <a href="../api_c/lsn_class.html">DB_LSN</a> values less than or equal to the
<b>lsn</b> parameter are written to disk.  If <b>lsn</b> is NULL,
all records in the log are flushed.</ul>
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<br><b>Errors</b>
<p>The DB_ENV-&gt;log_flush method
may fail and return one of the following non-zero errors:</p>
<br>
<b>EINVAL</b><ul compact><li>An
invalid flag value or parameter was specified.</ul>
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<br><b>Class</b>
<a href="../api_c/env_class.html">DB_ENV</a>, <a href="../api_c/logc_class.html">DB_LOGC</a>, <a href="../api_c/lsn_class.html">DB_LSN</a>
<br><b>See Also</b>
<a href="../api_c/log_list.html">Logging Subsystem and Related Methods</a>
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