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<title>Berkeley DB: DB_ENV->log_flush</title>
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<h1>DB_ENV->log_flush</h1>
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DB_ENV->log_flush(DB_ENV *env, const DB_LSN *lsn);
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<p>The DB_ENV->log_flush method guarantees that all log records whose
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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 DB_ENV->log_flush method returns a non-zero error value on failure and 0 on success.
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<p>The DB_ENV->log_flush method may fail and 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 DB_ENV->log_flush method may fail and return a non-zero error for errors specified for other Berkeley DB and C library or system functions.
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If a catastrophic error has occurred, the DB_ENV->log_flush method may fail and
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return <a href="../ref/program/errorret.html#DB_RUNRECOVERY">DB_RUNRECOVERY</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_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>
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<a href="../api_c/log_list.html">Logging Subsystem and Related Methods</a>
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