Viewing file:  txn_checkpoint.html (3.13 KB) -rw-r--r--
Select action/file-type:
 (+) | (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
Berkeley DB: DbEnv::txn_checkpoint
DbEnv::txn_checkpoint
|
 |
#include <db_cxx.h>
int
DbEnv::txn_checkpoint(u_int32_t kbyte, u_int32_t min, u_int32_t flags) const;
Description: DbEnv::txn_checkpoint
The DbEnv::txn_checkpoint method flushes the underlying memory pool, writes
a checkpoint record to the log, and then flushes the log.
The DbEnv::txn_checkpoint method
either returns a non-zero error value
or throws an exception that encapsulates a non-zero error value on
failure, and returns 0 on success.
Parameters
- flags
- The flags parameter must be set to 0 or
the following value:
- DB_FORCE
- Force a checkpoint record, even if there has been no activity since the
last checkpoint.
- kbyte
- If the kbyte parameter is non-zero, a checkpoint will be done
if more than kbyte kilobytes of log data have been written since
the last checkpoint.
- min
- If the min parameter is non-zero, a checkpoint will be done if
more than min minutes have passed since the last checkpoint.
Errors
The DbEnv::txn_checkpoint method
may fail and throw
DbException,
encapsulating one of the following non-zero errors, or return one of
the following non-zero errors:
- EINVAL
- An
invalid flag value or parameter was specified.
Class
DbEnv, DbTxn
See Also
Transaction Subsystem and Related Methods
Copyright (c) 1996-2004 Sleepycat Software, Inc. - All rights reserved.
|