// DBI returns the cursor's database handle. If c has been closed than an
// invalid DBI is returned.
func (c *Cursor) DBI() DBI {
// dbiInvalid is an invalid DBI (the max value for the type). it shouldn't
// be possible to create a database handle with value dbiInvalid because
// the process address space would be exhausted. it is also impractical to
// have many open databases in an environment.
const dbiInvalid = ^DBI(0)
// mdb_cursor_dbi segfaults when passed a nil value
if c._c == nil {
return dbiInvalid
}
return DBI(C.mdb_cursor_dbi(c._c))
}
func (cursor *Cursor) DBI() DBI {
var _dbi C.MDB_dbi
_dbi = C.mdb_cursor_dbi(cursor._cursor)
return DBI(_dbi)
}