#include <db.h>

int
DB_SEQUENCE->get_cachesize(DB_SEQUENCE *seq, u_int32_t *sizep);  

The DB_SEQUENCE->get_cachesize() method returns the current cache size.

The DB_SEQUENCE->get_cachesize() method may be called at any time during the life of the application.

The DB_SEQUENCE->get_cachesize() method returns a non-zero error value on failure and 0 on success.