Exemplo n.º 1
0
func processDeleteCmd(c *bufio.ReadWriter, cache ybc.Cacher, line []byte, scratchBuf *[]byte) bool {
	n := -1

	key := nextToken(line, &n, "key")
	if key == nil {
		return false
	}

	noreply := false
	if n < len(line) {
		if !expectNoreply(line, &n) {
			return false
		}
		noreply = true
	}
	if !expectEof(line, n) {
		return false
	}

	ok := cache.Delete(key)
	if noreply {
		return true
	}

	response := strDeleted
	if !ok {
		response = strNotFound
	}
	return writeStr(c.Writer, response) && writeCrLf(c.Writer)
}
Exemplo n.º 2
0
func revalidateAndSetItemValueInternal(client Ccacher, cache ybc.Cacher, it *ybc.Item, item *Item, casid uint64, flags, validateTtl uint32, getFunc func() error) error {
	if err := getFunc(); err != nil {
		if err == ErrNotModified {
			if validateTtl > 0 {
				updateLocalItem(cache, it, item.Key, casid, flags, validateTtl)
			}
			return setItemValue(it, item)
		}
		if err == ErrCacheMiss {
			cache.Delete(item.Key)
		}
		return err
	}
	return cacheItem(cache, item)
}
Exemplo n.º 3
0
func processDeleteCmd(c *bufio.ReadWriter, cache ybc.Cacher, line []byte, scratchBuf *[]byte) bool {
	n := -1

	key := nextToken(line, &n, "key")
	if key == nil {
		return false
	}

	noreply := false
	if n < len(line) {
		s := nextToken(line, &n, "noreply_or_exptime")
		if s == nil {
			return false
		}
		if !bytes.Equal(s, strNoreply) {
			if _, ok := parseUint32(s); !ok {
				return false
			}
			if n < len(line) {
				if !expectNoreply(line, &n) {
					return false
				}
				noreply = true
			}
		} else {
			noreply = true
		}
	}
	if !expectEof(line, n) {
		return false
	}

	ok := cache.Delete(key)
	if noreply {
		return true
	}

	response := strDeletedCrLf
	if !ok {
		response = strNotFoundCrLf
	}
	return writeStr(c.Writer, response)
}
Exemplo n.º 4
0
func revalidateAndSetItemValueInternal(client Ccacher, cache ybc.Cacher, it *ybc.Item, item *Item, etag uint64, validateTtl uint32, getFunc func(*Citem) error) error {
	citem := Citem{
		Item: Item{
			Key: item.Key,
		},
		Etag: etag,
	}
	if err := getFunc(&citem); err != nil {
		if err == ErrNotModified {
			if validateTtl > 0 {
				updateLocalItem(cache, it, item, etag, validateTtl)
			}
			return setItemValue(it, item)
		}
		if err == ErrCacheMiss {
			cache.Delete(item.Key)
		}
		return err
	}
	cacheCitem(cache, &citem)
	item.Value = citem.Value
	return nil
}