#include <db.h> int DB_ENV->log_flush(DB_ENV *env, const DB_LSN *lsn);
The DB_ENV->log_flush()
method writes log records to disk.
The DB_ENV->log_flush()
method returns a non-zero error value on failure and 0 on success.
All log records with DB_LSN values less than or equal to the lsn parameter are written to disk. If lsn is NULL, all records in the log are flushed.
The DB_ENV->log_flush()
method may fail and return one of the following non-zero errors: