Berkeley DB

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

The DbEnv::txn_checkpoint method flushes the underlying memory pool, writes a checkpoint record to the log, and then flushes the log.

If either kbyte or min is non-zero, the checkpoint is only done if there has been activity since the last checkpoint and either more than min minutes have passed since the last checkpoint, or if more than kbyte kilobytes of log data have been written since the last checkpoint.

The flags parameter must be set to 0 or one of the following values:

DB_FORCE Force a checkpoint record even if there has been no activity since the last checkpoint.

The DbEnv::txn_checkpoint method ...