db::Database

can_write close create create_sequence create_table Database describe_table drop_sequence drop_table get_buffer_manager_stat get_buffer_stat get_default_completion_mode get_default_isolation_level get_library_config get_table_id get_timeout is_opened lock_table lock_table open set_default_completion_mode set_default_isolation_level set_library_config set_timeout tx_abort tx_begin tx_commit tx_flush unwatch_table update_table wait watch_table ~Database

int db::Database::set_default_completion_mode ( TxCompletionMode  mode  )  Set the default transaction completion mode. The given completion mode will be used for subsequent calls to tx_commit and tx_abort when DB_DEFAULT_COMPLETION is selected. Until set_default_completion_mode is called, the default completion mode is DB_GROUP_COMPLETION. Parameters: mode  The default transaction completion mode. (required) DB_LAZY_COMPLETION: Perform lazy completion. The transaction status is not written to disk, which may cause the transaction to abort if a crash occurs before the journal is flushed. Call Database::tx_flush to force lazily completed transactions to complete. DB_GROUP_COMPLETION: Perform group completion. The transaction will wait for all other active transactions to be committed and perform the commit for all transactions as a group. This improves performance when several transactions are active at the same time by reducing the amount of disk I/O that is performed. If no other transactions are active, or if 50 milliseconds elapses before the other transactions are committed, the transaction will stop waiting and complete immediately. Database::tx_commit will not return until the transaction is fully flushed to disk. DB_FORCED_COMPLETION: Force completion immediately. The transaction will be fully flushed to disk before Database::tx_commit returns. Returns: DB_NOERROR When successful. DB_EINVAL Caused by invalid completion mode. DB_ESTATE Database has not been opened. See also: tx_commit, tx_abort, get_default_completion_mode