# log_flush |

`

###

    #include <db.h>

    int
    log_flush(DB_ENV *env, const DB_LSN *lsn);

# Description

The log_flush function guarantees that all log records whose DB_LSN values are less than or equal to the lsn argument have been written to disk. If lsn is NULL, all records in the log are flushed.

The log_flush function returns a non-zero error value on failure and 0 on success.

# Errors

If a fatal error occurs in Berkeley DB, the log_flush function will fail and return DB_RUNRECOVERY, at which point all subsequent database calls will fail in the same way.

In addition, the log_flush function may fail and return a non-zero error for the following conditions:

EINVAL
  An invalid flag value or parameter was specified.

In addition, the log_flush function may fail and return a non-zero error for errors specified for other Berkeley DB and C library or system functions.

# See Also

DBENV->set_lg_bsize, DBENV->set_lg_max, log_archive, log_compare, log_file, log_flush, log_get, log_put, log_register, log_stat and log_unregister.`

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