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<title>Berkeley DB: DbEnv::log_flush</title>
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<h1>DbEnv::log_flush</h1>
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#include <db_cxx.h>
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DbEnv::log_flush(const DbLsn *lsn);
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<p>The DbEnv::log_flush method guarantees that all log records whose
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<a href="../api_cxx/lsn_class.html">DbLsn</a> values
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are less than or equal to the <b>lsn</b> argument have been
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written to disk. If <b>lsn</b> is NULL, all records in the
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<p>The DbEnv::log_flush method either returns a non-zero error value or throws an exception that
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encapsulates a non-zero error value on failure, and returns 0 on success.
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<p>The DbEnv::log_flush method may fail and throw an exception or return a non-zero error for the following conditions:
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<p><dt>EINVAL<dd>An invalid flag value or parameter was specified.
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<p>The DbEnv::log_flush method may fail and throw an exception or return a non-zero error for errors specified for other Berkeley DB and C library or system methods.
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If a catastrophic error has occurred, the DbEnv::log_flush method may fail and
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either return <a href="../ref/program/errorret.html#DB_RUNRECOVERY">DB_RUNRECOVERY</a> or throw a
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<a href="../api_cxx/runrec_class.html">DbRunRecoveryException</a>,
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in which case all subsequent Berkeley DB calls will fail in the same way.
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<a href="../api_cxx/env_class.html">DbEnv</a>, <a href="../api_cxx/logc_class.html">DbLogc</a>, <a href="../api_cxx/lsn_class.html">DbLsn</a>
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<a href="../api_cxx/log_list.html">Logging Subsystem and Related Methods</a>
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