func (txn *Txn) DBIOpen(name *string, flags uint) (DBI, error) {
var _dbi C.MDB_dbi
var cname *C.char
if name == nil {
cname = nil
} else {
cname = C.CString(*name)
defer C.free(unsafe.Pointer(cname))
}
ret := C.mdb_dbi_open(txn._txn, cname, C.uint(flags), &_dbi)
if ret != SUCCESS {
return DBI(math.NaN()), Errno(ret)
}
return DBI(_dbi), nil
}
// openDBI returns returns whatever DBI value was set by mdb_open_dbi. In an
// error case, LMDB does not currently set DBI in case of failure, so zero is
// returned in those cases. This is not a big deal for now because
// applications are expected to handle any error encountered opening a
// database.
func (txn *Txn) openDBI(cname *C.char, flags uint) (DBI, error) {
var dbi C.MDB_dbi
ret := C.mdb_dbi_open(txn._txn, cname, C.uint(flags), &dbi)
return DBI(dbi), operrno("mdb_dbi_open", ret)
}
