Esempio n. 1
0
func commandInfoParser(rd *proto.Reader, n int64) (interface{}, error) {
	var cmd CommandInfo
	var err error

	if n != 6 {
		return nil, fmt.Errorf("redis: got %d elements in COMMAND reply, wanted 6")
	}

	cmd.Name, err = rd.ReadStringReply()
	if err != nil {
		return nil, err
	}

	arity, err := rd.ReadIntReply()
	if err != nil {
		return nil, err
	}
	cmd.Arity = int8(arity)

	flags, err := rd.ReadReply(stringSliceParser)
	if err != nil {
		return nil, err
	}
	cmd.Flags = flags.([]string)

	firstKeyPos, err := rd.ReadIntReply()
	if err != nil {
		return nil, err
	}
	cmd.FirstKeyPos = int8(firstKeyPos)

	lastKeyPos, err := rd.ReadIntReply()
	if err != nil {
		return nil, err
	}
	cmd.LastKeyPos = int8(lastKeyPos)

	stepCount, err := rd.ReadIntReply()
	if err != nil {
		return nil, err
	}
	cmd.StepCount = int8(stepCount)

	for _, flag := range cmd.Flags {
		if flag == "readonly" {
			cmd.ReadOnly = true
			break
		}
	}

	return &cmd, nil
}
Esempio n. 2
0
// Implements proto.MultiBulkParse
func stringSliceParser(rd *proto.Reader, n int64) (interface{}, error) {
	ss := make([]string, 0, n)
	for i := int64(0); i < n; i++ {
		s, err := rd.ReadStringReply()
		if err == Nil {
			ss = append(ss, "")
		} else if err != nil {
			return nil, err
		} else {
			ss = append(ss, s)
		}
	}
	return ss, nil
}
Esempio n. 3
0
// Implements proto.MultiBulkParse
func stringStringMapParser(rd *proto.Reader, n int64) (interface{}, error) {
	m := make(map[string]string, n/2)
	for i := int64(0); i < n; i += 2 {
		key, err := rd.ReadStringReply()
		if err != nil {
			return nil, err
		}

		value, err := rd.ReadStringReply()
		if err != nil {
			return nil, err
		}

		m[key] = value
	}
	return m, nil
}
Esempio n. 4
0
// Implements proto.MultiBulkParse
func stringIntMapParser(rd *proto.Reader, n int64) (interface{}, error) {
	m := make(map[string]int64, n/2)
	for i := int64(0); i < n; i += 2 {
		key, err := rd.ReadStringReply()
		if err != nil {
			return nil, err
		}

		n, err := rd.ReadIntReply()
		if err != nil {
			return nil, err
		}

		m[key] = n
	}
	return m, nil
}
Esempio n. 5
0
// Implements proto.MultiBulkParse
func zSliceParser(rd *proto.Reader, n int64) (interface{}, error) {
	zz := make([]Z, n/2)
	for i := int64(0); i < n; i += 2 {
		var err error

		z := &zz[i/2]

		z.Member, err = rd.ReadStringReply()
		if err != nil {
			return nil, err
		}

		z.Score, err = rd.ReadFloatReply()
		if err != nil {
			return nil, err
		}
	}
	return zz, nil
}
Esempio n. 6
0
// Implements proto.MultiBulkParse
func clusterSlotsParser(rd *proto.Reader, n int64) (interface{}, error) {
	slots := make([]ClusterSlot, n)
	for i := 0; i < len(slots); i++ {
		n, err := rd.ReadArrayLen()
		if err != nil {
			return nil, err
		}
		if n < 2 {
			err := fmt.Errorf("redis: got %d elements in cluster info, expected at least 2", n)
			return nil, err
		}

		start, err := rd.ReadIntReply()
		if err != nil {
			return nil, err
		}

		end, err := rd.ReadIntReply()
		if err != nil {
			return nil, err
		}

		nodes := make([]ClusterNode, n-2)
		for j := 0; j < len(nodes); j++ {
			n, err := rd.ReadArrayLen()
			if err != nil {
				return nil, err
			}
			if n != 2 && n != 3 {
				err := fmt.Errorf("got %d elements in cluster info address, expected 2 or 3", n)
				return nil, err
			}

			ip, err := rd.ReadStringReply()
			if err != nil {
				return nil, err
			}

			port, err := rd.ReadIntReply()
			if err != nil {
				return nil, err
			}
			nodes[j].Addr = net.JoinHostPort(ip, strconv.FormatInt(port, 10))

			if n == 3 {
				id, err := rd.ReadStringReply()
				if err != nil {
					return nil, err
				}
				nodes[j].Id = id
			}
		}

		slots[i] = ClusterSlot{
			Start: int(start),
			End:   int(end),
			Nodes: nodes,
		}
	}
	return slots, nil
}