// Err returns nil if no errors happened during iteration, or the actual
// error otherwise.
func (iter *Iterator) Err() error {
var cErr *C.char
C.rocksdb_iter_get_error(iter.c, &cErr)
if cErr != nil {
defer C.rocksdb_free(unsafe.Pointer(cErr))
return errors.New(C.GoString(cErr))
}
return nil
}
func (db *DB) KeyMayExist(opts *ReadOptions, key []byte) bool {
var cErr *C.char
cKey := byteToChar(key)
ret := C.rocksdb_key_may_exist(db.c, opts.c, cKey, C.size_t(len(key)), &cErr)
if cErr != nil {
defer C.rocksdb_free(unsafe.Pointer(cErr))
return false
}
return ret != 0
}
func (self *Slice) Free() {
if !self.freed {
C.rocksdb_free(unsafe.Pointer(self.data))
self.freed = true
}
}