#include <db.h>

int
DB->get_partition_callback(DB *db, u_int32_t *partsp,
	u_int32_t (**callback_fcn) (DB *dbp, DBT *key);  

The DB->get_partition_callback() method returns the database partitioning callback as set by the DB->set_partition() method.

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

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