DB->get_type |
 
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#include <db.h>
int
DB->get_type(DB *db, DBTYPE *type);
int DB->get_type(DB *db, DBTYPE *type);
Description
The DB->get_type function stores the type of the underlying access method (and file format) into the memory referenced by type. The returned 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 argument set to DB_UNKNOWN.
The DB->get_type interface may be called only after the DB->open interface has been called.
Errors
The DB->get_type function may fail and return a non-zero error for the following conditions:
- EINVAL
- An invalid flag value or parameter was specified.
Called before DB->open was called.
The DB->get_type function may fail and return a non-zero error for errors specified for other Berkeley DB and C library or system functions. If a catastrophic error has occurred, the DB->get_type function may fail and return DB_RUNRECOVERY, in which case all subsequent Berkeley DB calls will fail in the same way.
See Also
db_create, DB->associate, DB->close, DB->cursor, DB->del, DB->err, DB->errx DB->fd, DB->get, DB->pget, DB->get_byteswapped, DB->get_type, DB->join, DB->key_range, DB->open, DB->put, DB->remove, DB->rename, DB->set_alloc, DB->set_append_recno, DB->set_bt_compare, DB->set_bt_minkey, DB->set_bt_prefix, DB->set_cachesize, DB->set_dup_compare, DB->set_errcall, DB->set_errfile, DB->set_errpfx, DB->set_feedback, DB->set_flags, DB->set_h_ffactor, DB->set_h_hash, DB->set_h_nelem, DB->set_lorder, DB->set_pagesize, DB->set_paniccall, DB->set_q_extentsize, DB->set_re_delim, DB->set_re_len, DB->set_re_pad, DB->set_re_source, DB->stat, DB->sync, DB->truncate, DB->upgrade, and DB->verify.|
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