DB->get_type()
#include <db.h>
int
DB->get_type(DB *db, DBTYPE *type); The DB->get_type() method returns the type of the underlying access method (and file format). The type value is one of DB_BTREE, DB_HASH, DB_RECNO, or DB_QUEUE. This value may be used to determine the type of the database after a return from DB->open() with the type parameter set to DB_UNKNOWN.
The DB->get_type() method may not be called before the DB->open() method is called.
The DB->get_type() method returns a non-zero error value on failure and 0 on success.
Parameters
type
The type parameter references memory into which the type of the underlying access method is copied.
Errors
The DB->get_type() method may fail and return one of the following non-zero errors:
EINVAL
If the method was called before DB->open() was called; or if an invalid flag value or parameter was specified.