Method Set

db/string.go:69–87

Set set the string value of a key the num of expire slice is not zero and expire[0] is not zero ,the key add exprie queue otherwise the delete expire queue

(val []byte, expire ...int64)

// the num of expire slice is not zero and expire[0] is not zero ,the key add exprie queue
// otherwise the delete expire queue
func (s *String) Set(val []byte, expire ...int64) error {
	timestamp := Now()
	mkey := MetaKey(s.txn.db, s.key)
	if len(expire) != 0 && expire[0] > 0 {
		old := s.Meta.ExpireAt
		s.Meta.ExpireAt = timestamp + expire[0]
		if err := expireAt(s.txn.t, mkey, s.Meta.ID, s.Meta.Type, old, s.Meta.ExpireAt); err != nil {
			return err
		}
	} else {
		//maybe key is not expire queue,so unExpireAt will return err,but it is not relationship
		if err := unExpireAt(s.txn.t, mkey, s.Meta.ExpireAt); err != nil {
			zap.L().Error("add expire failed", zap.String("key", string(mkey)))
		}
		s.Meta.ExpireAt = 0
	}
	s.Meta.Value = val
	return s.txn.t.Set(mkey, s.encode())
}

// Len value len
func (s *String) Len() (int, error) {