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Berkeley DB: DB_ENV->set_tx_timestamp
DB_ENV->set_tx_timestamp
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#include <db.h>
int
DB_ENV->set_tx_timestamp(DB_ENV *dbenv, time_t *timestamp);
Description
Recover to the time specified by timestamp rather than to the most
current possible date.
The timestamp argument should be the number of seconds since 0
hours, 0 minutes, 0 seconds, January 1, 1970, Coordinated Universal
Time; that is, the Epoch.
Once a database environment has been upgraded to a new version of Berkeley DB
involving a log format change (see Upgrading Berkeley DB installations), it is no longer possible to recover
to a specific time before that upgrade.
The DB_ENV->set_tx_timestamp interface may be used only to configure Berkeley DB before
the DB_ENV->open interface is called.
The DB_ENV->set_tx_timestamp function returns a non-zero error value on failure and 0 on success.
Errors
The DB_ENV->set_tx_timestamp function may fail and return a non-zero error for the following conditions:
- EINVAL
- An invalid flag value or parameter was specified.
It is not possible to recover to the specified time using the log files
currently present in the environment.
The DB_ENV->set_tx_timestamp function may fail and return a non-zero error for errors specified for other Berkeley DB and C library or system functions.
If a catastrophic error has occurred, the DB_ENV->set_tx_timestamp function may fail and return
DB_RUNRECOVERY, in which case all subsequent Berkeley DB calls will fail
in the same way.
See Also
DB_ENV->set_tx_max,
DB_ENV->set_tx_recover,
DB_ENV->set_tx_timestamp,
txn_abort,
txn_begin,
txn_checkpoint,
txn_commit,
txn_discard,
txn_id,
txn_prepare,
txn_recover,
and
txn_stat.
Copyright Sleepycat Software
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