mirror of https://github.com/go-redis/redis.git
2396 lines
46 KiB
Go
2396 lines
46 KiB
Go
package redis
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import (
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"context"
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"fmt"
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"net"
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"strconv"
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"time"
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"github.com/go-redis/redis/v8/internal"
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"github.com/go-redis/redis/v8/internal/proto"
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"github.com/go-redis/redis/v8/internal/util"
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)
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type Cmder interface {
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Name() string
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FullName() string
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Args() []interface{}
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String() string
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stringArg(int) string
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firstKeyPos() int8
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setFirstKeyPos(int8)
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readTimeout() *time.Duration
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readReply(rd *proto.Reader) error
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SetErr(error)
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Err() error
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}
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func setCmdsErr(cmds []Cmder, e error) {
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for _, cmd := range cmds {
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if cmd.Err() == nil {
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cmd.SetErr(e)
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}
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}
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}
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func cmdsFirstErr(cmds []Cmder) error {
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for _, cmd := range cmds {
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if err := cmd.Err(); err != nil {
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return err
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}
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}
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return nil
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}
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func writeCmds(wr *proto.Writer, cmds []Cmder) error {
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for _, cmd := range cmds {
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if err := writeCmd(wr, cmd); err != nil {
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return err
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}
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}
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return nil
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}
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func writeCmd(wr *proto.Writer, cmd Cmder) error {
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return wr.WriteArgs(cmd.Args())
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}
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func cmdFirstKeyPos(cmd Cmder, info *CommandInfo) int {
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if pos := cmd.firstKeyPos(); pos != 0 {
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return int(pos)
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}
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switch cmd.Name() {
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case "eval", "evalsha":
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if cmd.stringArg(2) != "0" {
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return 3
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}
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return 0
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case "publish":
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return 1
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case "memory":
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// https://github.com/redis/redis/issues/7493
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if cmd.stringArg(1) == "usage" {
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return 2
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}
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}
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if info != nil {
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return int(info.FirstKeyPos)
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}
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return 0
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}
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func cmdString(cmd Cmder, val interface{}) string {
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b := make([]byte, 0, 64)
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for i, arg := range cmd.Args() {
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if i > 0 {
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b = append(b, ' ')
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}
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b = internal.AppendArg(b, arg)
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}
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if err := cmd.Err(); err != nil {
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b = append(b, ": "...)
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b = append(b, err.Error()...)
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} else if val != nil {
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b = append(b, ": "...)
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b = internal.AppendArg(b, val)
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}
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return internal.String(b)
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}
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//------------------------------------------------------------------------------
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type baseCmd struct {
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ctx context.Context
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args []interface{}
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err error
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keyPos int8
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_readTimeout *time.Duration
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}
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var _ Cmder = (*Cmd)(nil)
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func (cmd *baseCmd) Name() string {
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if len(cmd.args) == 0 {
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return ""
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}
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// Cmd name must be lower cased.
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return internal.ToLower(cmd.stringArg(0))
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}
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func (cmd *baseCmd) FullName() string {
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switch name := cmd.Name(); name {
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case "cluster", "command":
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if len(cmd.args) == 1 {
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return name
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}
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if s2, ok := cmd.args[1].(string); ok {
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return name + " " + s2
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}
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return name
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default:
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return name
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}
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}
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func (cmd *baseCmd) Args() []interface{} {
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return cmd.args
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}
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func (cmd *baseCmd) stringArg(pos int) string {
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if pos < 0 || pos >= len(cmd.args) {
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return ""
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}
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s, _ := cmd.args[pos].(string)
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return s
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}
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func (cmd *baseCmd) firstKeyPos() int8 {
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return cmd.keyPos
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}
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func (cmd *baseCmd) setFirstKeyPos(keyPos int8) {
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cmd.keyPos = keyPos
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}
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func (cmd *baseCmd) SetErr(e error) {
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cmd.err = e
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}
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func (cmd *baseCmd) Err() error {
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return cmd.err
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}
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func (cmd *baseCmd) readTimeout() *time.Duration {
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return cmd._readTimeout
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}
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func (cmd *baseCmd) setReadTimeout(d time.Duration) {
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cmd._readTimeout = &d
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}
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//------------------------------------------------------------------------------
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type Cmd struct {
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baseCmd
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val interface{}
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}
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func NewCmd(ctx context.Context, args ...interface{}) *Cmd {
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return &Cmd{
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baseCmd: baseCmd{
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ctx: ctx,
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args: args,
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},
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}
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}
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func (cmd *Cmd) String() string {
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return cmdString(cmd, cmd.val)
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}
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func (cmd *Cmd) Val() interface{} {
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return cmd.val
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}
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func (cmd *Cmd) Result() (interface{}, error) {
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return cmd.val, cmd.err
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}
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func (cmd *Cmd) Text() (string, error) {
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if cmd.err != nil {
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return "", cmd.err
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}
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switch val := cmd.val.(type) {
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case string:
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return val, nil
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default:
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err := fmt.Errorf("redis: unexpected type=%T for String", val)
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return "", err
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}
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}
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func (cmd *Cmd) Int() (int, error) {
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if cmd.err != nil {
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return 0, cmd.err
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}
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switch val := cmd.val.(type) {
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case int64:
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return int(val), nil
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case string:
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return strconv.Atoi(val)
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default:
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err := fmt.Errorf("redis: unexpected type=%T for Int", val)
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return 0, err
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}
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}
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func (cmd *Cmd) Int64() (int64, error) {
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if cmd.err != nil {
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return 0, cmd.err
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}
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switch val := cmd.val.(type) {
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case int64:
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return val, nil
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case string:
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return strconv.ParseInt(val, 10, 64)
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default:
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err := fmt.Errorf("redis: unexpected type=%T for Int64", val)
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return 0, err
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}
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}
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func (cmd *Cmd) Uint64() (uint64, error) {
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if cmd.err != nil {
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return 0, cmd.err
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}
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switch val := cmd.val.(type) {
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case int64:
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return uint64(val), nil
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case string:
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return strconv.ParseUint(val, 10, 64)
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default:
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err := fmt.Errorf("redis: unexpected type=%T for Uint64", val)
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return 0, err
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}
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}
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func (cmd *Cmd) Float32() (float32, error) {
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if cmd.err != nil {
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return 0, cmd.err
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}
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switch val := cmd.val.(type) {
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case int64:
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return float32(val), nil
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case string:
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f, err := strconv.ParseFloat(val, 32)
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if err != nil {
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return 0, err
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}
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return float32(f), nil
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default:
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err := fmt.Errorf("redis: unexpected type=%T for Float32", val)
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return 0, err
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}
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}
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func (cmd *Cmd) Float64() (float64, error) {
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if cmd.err != nil {
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return 0, cmd.err
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}
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switch val := cmd.val.(type) {
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case int64:
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return float64(val), nil
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case string:
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return strconv.ParseFloat(val, 64)
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default:
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err := fmt.Errorf("redis: unexpected type=%T for Float64", val)
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return 0, err
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}
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}
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func (cmd *Cmd) Bool() (bool, error) {
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if cmd.err != nil {
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return false, cmd.err
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}
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switch val := cmd.val.(type) {
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case int64:
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return val != 0, nil
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case string:
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return strconv.ParseBool(val)
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default:
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err := fmt.Errorf("redis: unexpected type=%T for Bool", val)
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return false, err
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}
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}
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func (cmd *Cmd) readReply(rd *proto.Reader) (err error) {
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cmd.val, err = rd.ReadReply(sliceParser)
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return err
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}
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// sliceParser implements proto.MultiBulkParse.
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func sliceParser(rd *proto.Reader, n int64) (interface{}, error) {
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vals := make([]interface{}, n)
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for i := 0; i < len(vals); i++ {
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v, err := rd.ReadReply(sliceParser)
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if err != nil {
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if err == Nil {
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vals[i] = nil
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continue
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}
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if err, ok := err.(proto.RedisError); ok {
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vals[i] = err
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continue
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}
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return nil, err
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}
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vals[i] = v
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}
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return vals, nil
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}
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//------------------------------------------------------------------------------
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type SliceCmd struct {
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baseCmd
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val []interface{}
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}
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var _ Cmder = (*SliceCmd)(nil)
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func NewSliceCmd(ctx context.Context, args ...interface{}) *SliceCmd {
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return &SliceCmd{
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baseCmd: baseCmd{
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ctx: ctx,
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args: args,
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},
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}
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}
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func (cmd *SliceCmd) Val() []interface{} {
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return cmd.val
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}
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func (cmd *SliceCmd) Result() ([]interface{}, error) {
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return cmd.val, cmd.err
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}
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func (cmd *SliceCmd) String() string {
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return cmdString(cmd, cmd.val)
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}
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func (cmd *SliceCmd) readReply(rd *proto.Reader) error {
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v, err := rd.ReadArrayReply(sliceParser)
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if err != nil {
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return err
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}
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cmd.val = v.([]interface{})
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return nil
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}
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//------------------------------------------------------------------------------
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type StatusCmd struct {
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baseCmd
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val string
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}
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var _ Cmder = (*StatusCmd)(nil)
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func NewStatusCmd(ctx context.Context, args ...interface{}) *StatusCmd {
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return &StatusCmd{
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baseCmd: baseCmd{
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ctx: ctx,
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args: args,
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},
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}
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}
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func (cmd *StatusCmd) Val() string {
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return cmd.val
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}
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func (cmd *StatusCmd) Result() (string, error) {
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return cmd.val, cmd.err
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}
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func (cmd *StatusCmd) String() string {
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return cmdString(cmd, cmd.val)
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}
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func (cmd *StatusCmd) readReply(rd *proto.Reader) (err error) {
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cmd.val, err = rd.ReadString()
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return err
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}
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//------------------------------------------------------------------------------
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type IntCmd struct {
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baseCmd
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val int64
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}
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var _ Cmder = (*IntCmd)(nil)
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func NewIntCmd(ctx context.Context, args ...interface{}) *IntCmd {
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return &IntCmd{
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baseCmd: baseCmd{
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ctx: ctx,
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args: args,
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},
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}
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}
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func (cmd *IntCmd) Val() int64 {
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return cmd.val
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}
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func (cmd *IntCmd) Result() (int64, error) {
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return cmd.val, cmd.err
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}
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func (cmd *IntCmd) Uint64() (uint64, error) {
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return uint64(cmd.val), cmd.err
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}
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func (cmd *IntCmd) String() string {
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return cmdString(cmd, cmd.val)
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}
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func (cmd *IntCmd) readReply(rd *proto.Reader) (err error) {
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cmd.val, err = rd.ReadIntReply()
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return err
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}
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//------------------------------------------------------------------------------
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type IntSliceCmd struct {
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baseCmd
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val []int64
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}
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var _ Cmder = (*IntSliceCmd)(nil)
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func NewIntSliceCmd(ctx context.Context, args ...interface{}) *IntSliceCmd {
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return &IntSliceCmd{
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baseCmd: baseCmd{
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ctx: ctx,
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args: args,
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},
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}
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}
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func (cmd *IntSliceCmd) Val() []int64 {
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return cmd.val
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}
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func (cmd *IntSliceCmd) Result() ([]int64, error) {
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return cmd.val, cmd.err
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}
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func (cmd *IntSliceCmd) String() string {
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return cmdString(cmd, cmd.val)
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}
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func (cmd *IntSliceCmd) readReply(rd *proto.Reader) error {
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_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
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cmd.val = make([]int64, n)
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for i := 0; i < len(cmd.val); i++ {
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num, err := rd.ReadIntReply()
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if err != nil {
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return nil, err
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}
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cmd.val[i] = num
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}
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return nil, nil
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})
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return err
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}
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|
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//------------------------------------------------------------------------------
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type DurationCmd struct {
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baseCmd
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val time.Duration
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precision time.Duration
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}
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var _ Cmder = (*DurationCmd)(nil)
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func NewDurationCmd(ctx context.Context, precision time.Duration, args ...interface{}) *DurationCmd {
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return &DurationCmd{
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baseCmd: baseCmd{
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ctx: ctx,
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args: args,
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},
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precision: precision,
|
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}
|
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}
|
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|
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func (cmd *DurationCmd) Val() time.Duration {
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return cmd.val
|
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}
|
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|
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func (cmd *DurationCmd) Result() (time.Duration, error) {
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return cmd.val, cmd.err
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}
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|
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func (cmd *DurationCmd) String() string {
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return cmdString(cmd, cmd.val)
|
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}
|
|
|
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func (cmd *DurationCmd) readReply(rd *proto.Reader) error {
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n, err := rd.ReadIntReply()
|
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if err != nil {
|
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return err
|
|
}
|
|
switch n {
|
|
// -2 if the key does not exist
|
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// -1 if the key exists but has no associated expire
|
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case -2, -1:
|
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cmd.val = time.Duration(n)
|
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default:
|
|
cmd.val = time.Duration(n) * cmd.precision
|
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}
|
|
return nil
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type TimeCmd struct {
|
|
baseCmd
|
|
|
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val time.Time
|
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}
|
|
|
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var _ Cmder = (*TimeCmd)(nil)
|
|
|
|
func NewTimeCmd(ctx context.Context, args ...interface{}) *TimeCmd {
|
|
return &TimeCmd{
|
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baseCmd: baseCmd{
|
|
ctx: ctx,
|
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args: args,
|
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},
|
|
}
|
|
}
|
|
|
|
func (cmd *TimeCmd) Val() time.Time {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *TimeCmd) Result() (time.Time, error) {
|
|
return cmd.val, cmd.err
|
|
}
|
|
|
|
func (cmd *TimeCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *TimeCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
if n != 2 {
|
|
return nil, fmt.Errorf("got %d elements, expected 2", n)
|
|
}
|
|
|
|
sec, err := rd.ReadInt()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
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|
|
microsec, err := rd.ReadInt()
|
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if err != nil {
|
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return nil, err
|
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}
|
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|
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cmd.val = time.Unix(sec, microsec*1000)
|
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return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type BoolCmd struct {
|
|
baseCmd
|
|
|
|
val bool
|
|
}
|
|
|
|
var _ Cmder = (*BoolCmd)(nil)
|
|
|
|
func NewBoolCmd(ctx context.Context, args ...interface{}) *BoolCmd {
|
|
return &BoolCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
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args: args,
|
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},
|
|
}
|
|
}
|
|
|
|
func (cmd *BoolCmd) Val() bool {
|
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return cmd.val
|
|
}
|
|
|
|
func (cmd *BoolCmd) Result() (bool, error) {
|
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return cmd.val, cmd.err
|
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}
|
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|
|
func (cmd *BoolCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
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}
|
|
|
|
func (cmd *BoolCmd) readReply(rd *proto.Reader) error {
|
|
v, err := rd.ReadReply(nil)
|
|
// `SET key value NX` returns nil when key already exists. But
|
|
// `SETNX key value` returns bool (0/1). So convert nil to bool.
|
|
if err == Nil {
|
|
cmd.val = false
|
|
return nil
|
|
}
|
|
if err != nil {
|
|
return err
|
|
}
|
|
switch v := v.(type) {
|
|
case int64:
|
|
cmd.val = v == 1
|
|
return nil
|
|
case string:
|
|
cmd.val = v == "OK"
|
|
return nil
|
|
default:
|
|
return fmt.Errorf("got %T, wanted int64 or string", v)
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type StringCmd struct {
|
|
baseCmd
|
|
|
|
val string
|
|
}
|
|
|
|
var _ Cmder = (*StringCmd)(nil)
|
|
|
|
func NewStringCmd(ctx context.Context, args ...interface{}) *StringCmd {
|
|
return &StringCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *StringCmd) Val() string {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *StringCmd) Result() (string, error) {
|
|
return cmd.Val(), cmd.err
|
|
}
|
|
|
|
func (cmd *StringCmd) Bytes() ([]byte, error) {
|
|
return util.StringToBytes(cmd.val), cmd.err
|
|
}
|
|
|
|
func (cmd *StringCmd) Int() (int, error) {
|
|
if cmd.err != nil {
|
|
return 0, cmd.err
|
|
}
|
|
return strconv.Atoi(cmd.Val())
|
|
}
|
|
|
|
func (cmd *StringCmd) Int64() (int64, error) {
|
|
if cmd.err != nil {
|
|
return 0, cmd.err
|
|
}
|
|
return strconv.ParseInt(cmd.Val(), 10, 64)
|
|
}
|
|
|
|
func (cmd *StringCmd) Uint64() (uint64, error) {
|
|
if cmd.err != nil {
|
|
return 0, cmd.err
|
|
}
|
|
return strconv.ParseUint(cmd.Val(), 10, 64)
|
|
}
|
|
|
|
func (cmd *StringCmd) Float32() (float32, error) {
|
|
if cmd.err != nil {
|
|
return 0, cmd.err
|
|
}
|
|
f, err := strconv.ParseFloat(cmd.Val(), 32)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
return float32(f), nil
|
|
}
|
|
|
|
func (cmd *StringCmd) Float64() (float64, error) {
|
|
if cmd.err != nil {
|
|
return 0, cmd.err
|
|
}
|
|
return strconv.ParseFloat(cmd.Val(), 64)
|
|
}
|
|
|
|
func (cmd *StringCmd) Time() (time.Time, error) {
|
|
if cmd.err != nil {
|
|
return time.Time{}, cmd.err
|
|
}
|
|
return time.Parse(time.RFC3339Nano, cmd.Val())
|
|
}
|
|
|
|
func (cmd *StringCmd) Scan(val interface{}) error {
|
|
if cmd.err != nil {
|
|
return cmd.err
|
|
}
|
|
return proto.Scan([]byte(cmd.val), val)
|
|
}
|
|
|
|
func (cmd *StringCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *StringCmd) readReply(rd *proto.Reader) (err error) {
|
|
cmd.val, err = rd.ReadString()
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type FloatCmd struct {
|
|
baseCmd
|
|
|
|
val float64
|
|
}
|
|
|
|
var _ Cmder = (*FloatCmd)(nil)
|
|
|
|
func NewFloatCmd(ctx context.Context, args ...interface{}) *FloatCmd {
|
|
return &FloatCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *FloatCmd) Val() float64 {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *FloatCmd) Result() (float64, error) {
|
|
return cmd.Val(), cmd.Err()
|
|
}
|
|
|
|
func (cmd *FloatCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *FloatCmd) readReply(rd *proto.Reader) (err error) {
|
|
cmd.val, err = rd.ReadFloatReply()
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type StringSliceCmd struct {
|
|
baseCmd
|
|
|
|
val []string
|
|
}
|
|
|
|
var _ Cmder = (*StringSliceCmd)(nil)
|
|
|
|
func NewStringSliceCmd(ctx context.Context, args ...interface{}) *StringSliceCmd {
|
|
return &StringSliceCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *StringSliceCmd) Val() []string {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *StringSliceCmd) Result() ([]string, error) {
|
|
return cmd.Val(), cmd.Err()
|
|
}
|
|
|
|
func (cmd *StringSliceCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *StringSliceCmd) ScanSlice(container interface{}) error {
|
|
return proto.ScanSlice(cmd.Val(), container)
|
|
}
|
|
|
|
func (cmd *StringSliceCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.val = make([]string, n)
|
|
for i := 0; i < len(cmd.val); i++ {
|
|
switch s, err := rd.ReadString(); {
|
|
case err == Nil:
|
|
cmd.val[i] = ""
|
|
case err != nil:
|
|
return nil, err
|
|
default:
|
|
cmd.val[i] = s
|
|
}
|
|
}
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type BoolSliceCmd struct {
|
|
baseCmd
|
|
|
|
val []bool
|
|
}
|
|
|
|
var _ Cmder = (*BoolSliceCmd)(nil)
|
|
|
|
func NewBoolSliceCmd(ctx context.Context, args ...interface{}) *BoolSliceCmd {
|
|
return &BoolSliceCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *BoolSliceCmd) Val() []bool {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *BoolSliceCmd) Result() ([]bool, error) {
|
|
return cmd.val, cmd.err
|
|
}
|
|
|
|
func (cmd *BoolSliceCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *BoolSliceCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.val = make([]bool, n)
|
|
for i := 0; i < len(cmd.val); i++ {
|
|
n, err := rd.ReadIntReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
cmd.val[i] = n == 1
|
|
}
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type StringStringMapCmd struct {
|
|
baseCmd
|
|
|
|
val map[string]string
|
|
}
|
|
|
|
var _ Cmder = (*StringStringMapCmd)(nil)
|
|
|
|
func NewStringStringMapCmd(ctx context.Context, args ...interface{}) *StringStringMapCmd {
|
|
return &StringStringMapCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *StringStringMapCmd) Val() map[string]string {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *StringStringMapCmd) Result() (map[string]string, error) {
|
|
return cmd.val, cmd.err
|
|
}
|
|
|
|
func (cmd *StringStringMapCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *StringStringMapCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.val = make(map[string]string, n/2)
|
|
for i := int64(0); i < n; i += 2 {
|
|
key, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
value, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
cmd.val[key] = value
|
|
}
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type StringIntMapCmd struct {
|
|
baseCmd
|
|
|
|
val map[string]int64
|
|
}
|
|
|
|
var _ Cmder = (*StringIntMapCmd)(nil)
|
|
|
|
func NewStringIntMapCmd(ctx context.Context, args ...interface{}) *StringIntMapCmd {
|
|
return &StringIntMapCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *StringIntMapCmd) Val() map[string]int64 {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *StringIntMapCmd) Result() (map[string]int64, error) {
|
|
return cmd.val, cmd.err
|
|
}
|
|
|
|
func (cmd *StringIntMapCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *StringIntMapCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.val = make(map[string]int64, n/2)
|
|
for i := int64(0); i < n; i += 2 {
|
|
key, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
n, err := rd.ReadIntReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
cmd.val[key] = n
|
|
}
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type StringStructMapCmd struct {
|
|
baseCmd
|
|
|
|
val map[string]struct{}
|
|
}
|
|
|
|
var _ Cmder = (*StringStructMapCmd)(nil)
|
|
|
|
func NewStringStructMapCmd(ctx context.Context, args ...interface{}) *StringStructMapCmd {
|
|
return &StringStructMapCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *StringStructMapCmd) Val() map[string]struct{} {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *StringStructMapCmd) Result() (map[string]struct{}, error) {
|
|
return cmd.val, cmd.err
|
|
}
|
|
|
|
func (cmd *StringStructMapCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *StringStructMapCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.val = make(map[string]struct{}, n)
|
|
for i := int64(0); i < n; i++ {
|
|
key, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
cmd.val[key] = struct{}{}
|
|
}
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type XMessage struct {
|
|
ID string
|
|
Values map[string]interface{}
|
|
}
|
|
|
|
type XMessageSliceCmd struct {
|
|
baseCmd
|
|
|
|
val []XMessage
|
|
}
|
|
|
|
var _ Cmder = (*XMessageSliceCmd)(nil)
|
|
|
|
func NewXMessageSliceCmd(ctx context.Context, args ...interface{}) *XMessageSliceCmd {
|
|
return &XMessageSliceCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *XMessageSliceCmd) Val() []XMessage {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *XMessageSliceCmd) Result() ([]XMessage, error) {
|
|
return cmd.val, cmd.err
|
|
}
|
|
|
|
func (cmd *XMessageSliceCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *XMessageSliceCmd) readReply(rd *proto.Reader) error {
|
|
v, err := rd.ReadArrayReply(xMessageSliceParser)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
cmd.val = v.([]XMessage)
|
|
return nil
|
|
}
|
|
|
|
func readXMessage(rd *proto.Reader) (XMessage, error) {
|
|
n, err := rd.ReadArrayLen()
|
|
if err != nil {
|
|
return XMessage{}, err
|
|
}
|
|
if n != 2 {
|
|
return XMessage{}, fmt.Errorf("got %d, wanted 2", n)
|
|
}
|
|
|
|
id, err := rd.ReadString()
|
|
if err != nil {
|
|
return XMessage{}, err
|
|
}
|
|
|
|
var values map[string]interface{}
|
|
|
|
v, err := rd.ReadArrayReply(stringInterfaceMapParser)
|
|
if err != nil {
|
|
if err != proto.Nil {
|
|
return XMessage{}, err
|
|
}
|
|
} else {
|
|
values = v.(map[string]interface{})
|
|
}
|
|
|
|
return XMessage{
|
|
ID: id,
|
|
Values: values,
|
|
}, nil
|
|
}
|
|
|
|
// xMessageSliceParser implements proto.MultiBulkParse.
|
|
func xMessageSliceParser(rd *proto.Reader, n int64) (interface{}, error) {
|
|
msgs := make([]XMessage, n)
|
|
for i := int64(0); i < n; i++ {
|
|
var err error
|
|
msgs[i], err = readXMessage(rd)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
return msgs, nil
|
|
}
|
|
|
|
// stringInterfaceMapParser implements proto.MultiBulkParse.
|
|
func stringInterfaceMapParser(rd *proto.Reader, n int64) (interface{}, error) {
|
|
m := make(map[string]interface{}, n/2)
|
|
for i := int64(0); i < n; i += 2 {
|
|
key, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
value, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
m[key] = value
|
|
}
|
|
return m, nil
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type XStream struct {
|
|
Stream string
|
|
Messages []XMessage
|
|
}
|
|
|
|
type XStreamSliceCmd struct {
|
|
baseCmd
|
|
|
|
val []XStream
|
|
}
|
|
|
|
var _ Cmder = (*XStreamSliceCmd)(nil)
|
|
|
|
func NewXStreamSliceCmd(ctx context.Context, args ...interface{}) *XStreamSliceCmd {
|
|
return &XStreamSliceCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *XStreamSliceCmd) Val() []XStream {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *XStreamSliceCmd) Result() ([]XStream, error) {
|
|
return cmd.val, cmd.err
|
|
}
|
|
|
|
func (cmd *XStreamSliceCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *XStreamSliceCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.val = make([]XStream, n)
|
|
for i := 0; i < len(cmd.val); i++ {
|
|
i := i
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
if n != 2 {
|
|
return nil, fmt.Errorf("got %d, wanted 2", n)
|
|
}
|
|
|
|
stream, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
v, err := rd.ReadArrayReply(xMessageSliceParser)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
cmd.val[i] = XStream{
|
|
Stream: stream,
|
|
Messages: v.([]XMessage),
|
|
}
|
|
return nil, nil
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type XPending struct {
|
|
Count int64
|
|
Lower string
|
|
Higher string
|
|
Consumers map[string]int64
|
|
}
|
|
|
|
type XPendingCmd struct {
|
|
baseCmd
|
|
val *XPending
|
|
}
|
|
|
|
var _ Cmder = (*XPendingCmd)(nil)
|
|
|
|
func NewXPendingCmd(ctx context.Context, args ...interface{}) *XPendingCmd {
|
|
return &XPendingCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *XPendingCmd) Val() *XPending {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *XPendingCmd) Result() (*XPending, error) {
|
|
return cmd.val, cmd.err
|
|
}
|
|
|
|
func (cmd *XPendingCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *XPendingCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
if n != 4 {
|
|
return nil, fmt.Errorf("got %d, wanted 4", n)
|
|
}
|
|
|
|
count, err := rd.ReadIntReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
lower, err := rd.ReadString()
|
|
if err != nil && err != Nil {
|
|
return nil, err
|
|
}
|
|
|
|
higher, err := rd.ReadString()
|
|
if err != nil && err != Nil {
|
|
return nil, err
|
|
}
|
|
|
|
cmd.val = &XPending{
|
|
Count: count,
|
|
Lower: lower,
|
|
Higher: higher,
|
|
}
|
|
_, err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
for i := int64(0); i < n; i++ {
|
|
_, err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
if n != 2 {
|
|
return nil, fmt.Errorf("got %d, wanted 2", n)
|
|
}
|
|
|
|
consumerName, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
consumerPending, err := rd.ReadInt()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if cmd.val.Consumers == nil {
|
|
cmd.val.Consumers = make(map[string]int64)
|
|
}
|
|
cmd.val.Consumers[consumerName] = consumerPending
|
|
|
|
return nil, nil
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
return nil, nil
|
|
})
|
|
if err != nil && err != Nil {
|
|
return nil, err
|
|
}
|
|
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type XPendingExt struct {
|
|
ID string
|
|
Consumer string
|
|
Idle time.Duration
|
|
RetryCount int64
|
|
}
|
|
|
|
type XPendingExtCmd struct {
|
|
baseCmd
|
|
val []XPendingExt
|
|
}
|
|
|
|
var _ Cmder = (*XPendingExtCmd)(nil)
|
|
|
|
func NewXPendingExtCmd(ctx context.Context, args ...interface{}) *XPendingExtCmd {
|
|
return &XPendingExtCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *XPendingExtCmd) Val() []XPendingExt {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *XPendingExtCmd) Result() ([]XPendingExt, error) {
|
|
return cmd.val, cmd.err
|
|
}
|
|
|
|
func (cmd *XPendingExtCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *XPendingExtCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.val = make([]XPendingExt, 0, n)
|
|
for i := int64(0); i < n; i++ {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
if n != 4 {
|
|
return nil, fmt.Errorf("got %d, wanted 4", n)
|
|
}
|
|
|
|
id, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
consumer, err := rd.ReadString()
|
|
if err != nil && err != Nil {
|
|
return nil, err
|
|
}
|
|
|
|
idle, err := rd.ReadIntReply()
|
|
if err != nil && err != Nil {
|
|
return nil, err
|
|
}
|
|
|
|
retryCount, err := rd.ReadIntReply()
|
|
if err != nil && err != Nil {
|
|
return nil, err
|
|
}
|
|
|
|
cmd.val = append(cmd.val, XPendingExt{
|
|
ID: id,
|
|
Consumer: consumer,
|
|
Idle: time.Duration(idle) * time.Millisecond,
|
|
RetryCount: retryCount,
|
|
})
|
|
return nil, nil
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type XInfoGroupsCmd struct {
|
|
baseCmd
|
|
val []XInfoGroup
|
|
}
|
|
|
|
type XInfoGroup struct {
|
|
Name string
|
|
Consumers int64
|
|
Pending int64
|
|
LastDeliveredID string
|
|
}
|
|
|
|
var _ Cmder = (*XInfoGroupsCmd)(nil)
|
|
|
|
func NewXInfoGroupsCmd(ctx context.Context, stream string) *XInfoGroupsCmd {
|
|
return &XInfoGroupsCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: []interface{}{"xinfo", "groups", stream},
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *XInfoGroupsCmd) Val() []XInfoGroup {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *XInfoGroupsCmd) Result() ([]XInfoGroup, error) {
|
|
return cmd.val, cmd.err
|
|
}
|
|
|
|
func (cmd *XInfoGroupsCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *XInfoGroupsCmd) readReply(rd *proto.Reader) error {
|
|
n, err := rd.ReadArrayLen()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
cmd.val = make([]XInfoGroup, n)
|
|
|
|
for i := 0; i < n; i++ {
|
|
cmd.val[i], err = readXGroupInfo(rd)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func readXGroupInfo(rd *proto.Reader) (XInfoGroup, error) {
|
|
var group XInfoGroup
|
|
|
|
n, err := rd.ReadArrayLen()
|
|
if err != nil {
|
|
return group, err
|
|
}
|
|
if n != 8 {
|
|
return group, fmt.Errorf("redis: got %d elements in XINFO GROUPS reply, wanted 8", n)
|
|
}
|
|
|
|
for i := 0; i < 4; i++ {
|
|
key, err := rd.ReadString()
|
|
if err != nil {
|
|
return group, err
|
|
}
|
|
|
|
val, err := rd.ReadString()
|
|
if err != nil {
|
|
return group, err
|
|
}
|
|
|
|
switch key {
|
|
case "name":
|
|
group.Name = val
|
|
case "consumers":
|
|
group.Consumers, err = strconv.ParseInt(val, 0, 64)
|
|
if err != nil {
|
|
return group, err
|
|
}
|
|
case "pending":
|
|
group.Pending, err = strconv.ParseInt(val, 0, 64)
|
|
if err != nil {
|
|
return group, err
|
|
}
|
|
case "last-delivered-id":
|
|
group.LastDeliveredID = val
|
|
default:
|
|
return group, fmt.Errorf("redis: unexpected content %s in XINFO GROUPS reply", key)
|
|
}
|
|
}
|
|
|
|
return group, nil
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type XInfoStreamCmd struct {
|
|
baseCmd
|
|
val *XInfoStream
|
|
}
|
|
|
|
type XInfoStream struct {
|
|
Length int64
|
|
RadixTreeKeys int64
|
|
RadixTreeNodes int64
|
|
Groups int64
|
|
LastGeneratedID string
|
|
FirstEntry XMessage
|
|
LastEntry XMessage
|
|
}
|
|
|
|
var _ Cmder = (*XInfoStreamCmd)(nil)
|
|
|
|
func NewXInfoStreamCmd(ctx context.Context, stream string) *XInfoStreamCmd {
|
|
return &XInfoStreamCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: []interface{}{"xinfo", "stream", stream},
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *XInfoStreamCmd) Val() *XInfoStream {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *XInfoStreamCmd) Result() (*XInfoStream, error) {
|
|
return cmd.val, cmd.err
|
|
}
|
|
|
|
func (cmd *XInfoStreamCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *XInfoStreamCmd) readReply(rd *proto.Reader) error {
|
|
v, err := rd.ReadReply(xStreamInfoParser)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
cmd.val = v.(*XInfoStream)
|
|
return nil
|
|
}
|
|
|
|
func xStreamInfoParser(rd *proto.Reader, n int64) (interface{}, error) {
|
|
if n != 14 {
|
|
return nil, fmt.Errorf("redis: got %d elements in XINFO STREAM reply,"+
|
|
"wanted 14", n)
|
|
}
|
|
var info XInfoStream
|
|
for i := 0; i < 7; i++ {
|
|
key, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
switch key {
|
|
case "length":
|
|
info.Length, err = rd.ReadIntReply()
|
|
case "radix-tree-keys":
|
|
info.RadixTreeKeys, err = rd.ReadIntReply()
|
|
case "radix-tree-nodes":
|
|
info.RadixTreeNodes, err = rd.ReadIntReply()
|
|
case "groups":
|
|
info.Groups, err = rd.ReadIntReply()
|
|
case "last-generated-id":
|
|
info.LastGeneratedID, err = rd.ReadString()
|
|
case "first-entry":
|
|
info.FirstEntry, err = readXMessage(rd)
|
|
case "last-entry":
|
|
info.LastEntry, err = readXMessage(rd)
|
|
default:
|
|
return nil, fmt.Errorf("redis: unexpected content %s "+
|
|
"in XINFO STREAM reply", key)
|
|
}
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
return &info, nil
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type ZSliceCmd struct {
|
|
baseCmd
|
|
|
|
val []Z
|
|
}
|
|
|
|
var _ Cmder = (*ZSliceCmd)(nil)
|
|
|
|
func NewZSliceCmd(ctx context.Context, args ...interface{}) *ZSliceCmd {
|
|
return &ZSliceCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *ZSliceCmd) Val() []Z {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *ZSliceCmd) Result() ([]Z, error) {
|
|
return cmd.val, cmd.err
|
|
}
|
|
|
|
func (cmd *ZSliceCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *ZSliceCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.val = make([]Z, n/2)
|
|
for i := 0; i < len(cmd.val); i++ {
|
|
member, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
score, err := rd.ReadFloatReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
cmd.val[i] = Z{
|
|
Member: member,
|
|
Score: score,
|
|
}
|
|
}
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type ZWithKeyCmd struct {
|
|
baseCmd
|
|
|
|
val *ZWithKey
|
|
}
|
|
|
|
var _ Cmder = (*ZWithKeyCmd)(nil)
|
|
|
|
func NewZWithKeyCmd(ctx context.Context, args ...interface{}) *ZWithKeyCmd {
|
|
return &ZWithKeyCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *ZWithKeyCmd) Val() *ZWithKey {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *ZWithKeyCmd) Result() (*ZWithKey, error) {
|
|
return cmd.Val(), cmd.Err()
|
|
}
|
|
|
|
func (cmd *ZWithKeyCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *ZWithKeyCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
if n != 3 {
|
|
return nil, fmt.Errorf("got %d elements, expected 3", n)
|
|
}
|
|
|
|
cmd.val = &ZWithKey{}
|
|
var err error
|
|
|
|
cmd.val.Key, err = rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
cmd.val.Member, err = rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
cmd.val.Score, err = rd.ReadFloatReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type ScanCmd struct {
|
|
baseCmd
|
|
|
|
page []string
|
|
cursor uint64
|
|
|
|
process cmdable
|
|
}
|
|
|
|
var _ Cmder = (*ScanCmd)(nil)
|
|
|
|
func NewScanCmd(ctx context.Context, process cmdable, args ...interface{}) *ScanCmd {
|
|
return &ScanCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
process: process,
|
|
}
|
|
}
|
|
|
|
func (cmd *ScanCmd) Val() (keys []string, cursor uint64) {
|
|
return cmd.page, cmd.cursor
|
|
}
|
|
|
|
func (cmd *ScanCmd) Result() (keys []string, cursor uint64, err error) {
|
|
return cmd.page, cmd.cursor, cmd.err
|
|
}
|
|
|
|
func (cmd *ScanCmd) String() string {
|
|
return cmdString(cmd, cmd.page)
|
|
}
|
|
|
|
func (cmd *ScanCmd) readReply(rd *proto.Reader) (err error) {
|
|
cmd.page, cmd.cursor, err = rd.ReadScanReply()
|
|
return err
|
|
}
|
|
|
|
// Iterator creates a new ScanIterator.
|
|
func (cmd *ScanCmd) Iterator() *ScanIterator {
|
|
return &ScanIterator{
|
|
cmd: cmd,
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type ClusterNode struct {
|
|
ID string
|
|
Addr string
|
|
}
|
|
|
|
type ClusterSlot struct {
|
|
Start int
|
|
End int
|
|
Nodes []ClusterNode
|
|
}
|
|
|
|
type ClusterSlotsCmd struct {
|
|
baseCmd
|
|
|
|
val []ClusterSlot
|
|
}
|
|
|
|
var _ Cmder = (*ClusterSlotsCmd)(nil)
|
|
|
|
func NewClusterSlotsCmd(ctx context.Context, args ...interface{}) *ClusterSlotsCmd {
|
|
return &ClusterSlotsCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *ClusterSlotsCmd) Val() []ClusterSlot {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *ClusterSlotsCmd) Result() ([]ClusterSlot, error) {
|
|
return cmd.Val(), cmd.Err()
|
|
}
|
|
|
|
func (cmd *ClusterSlotsCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *ClusterSlotsCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.val = make([]ClusterSlot, n)
|
|
for i := 0; i < len(cmd.val); 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.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
port, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
nodes[j].Addr = net.JoinHostPort(ip, port)
|
|
|
|
if n == 3 {
|
|
id, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
nodes[j].ID = id
|
|
}
|
|
}
|
|
|
|
cmd.val[i] = ClusterSlot{
|
|
Start: int(start),
|
|
End: int(end),
|
|
Nodes: nodes,
|
|
}
|
|
}
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
// GeoLocation is used with GeoAdd to add geospatial location.
|
|
type GeoLocation struct {
|
|
Name string
|
|
Longitude, Latitude, Dist float64
|
|
GeoHash int64
|
|
}
|
|
|
|
// GeoRadiusQuery is used with GeoRadius to query geospatial index.
|
|
type GeoRadiusQuery struct {
|
|
Radius float64
|
|
// Can be m, km, ft, or mi. Default is km.
|
|
Unit string
|
|
WithCoord bool
|
|
WithDist bool
|
|
WithGeoHash bool
|
|
Count int
|
|
// Can be ASC or DESC. Default is no sort order.
|
|
Sort string
|
|
Store string
|
|
StoreDist string
|
|
}
|
|
|
|
type GeoLocationCmd struct {
|
|
baseCmd
|
|
|
|
q *GeoRadiusQuery
|
|
locations []GeoLocation
|
|
}
|
|
|
|
var _ Cmder = (*GeoLocationCmd)(nil)
|
|
|
|
func NewGeoLocationCmd(ctx context.Context, q *GeoRadiusQuery, args ...interface{}) *GeoLocationCmd {
|
|
return &GeoLocationCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: geoLocationArgs(q, args...),
|
|
},
|
|
q: q,
|
|
}
|
|
}
|
|
|
|
func geoLocationArgs(q *GeoRadiusQuery, args ...interface{}) []interface{} {
|
|
args = append(args, q.Radius)
|
|
if q.Unit != "" {
|
|
args = append(args, q.Unit)
|
|
} else {
|
|
args = append(args, "km")
|
|
}
|
|
if q.WithCoord {
|
|
args = append(args, "withcoord")
|
|
}
|
|
if q.WithDist {
|
|
args = append(args, "withdist")
|
|
}
|
|
if q.WithGeoHash {
|
|
args = append(args, "withhash")
|
|
}
|
|
if q.Count > 0 {
|
|
args = append(args, "count", q.Count)
|
|
}
|
|
if q.Sort != "" {
|
|
args = append(args, q.Sort)
|
|
}
|
|
if q.Store != "" {
|
|
args = append(args, "store")
|
|
args = append(args, q.Store)
|
|
}
|
|
if q.StoreDist != "" {
|
|
args = append(args, "storedist")
|
|
args = append(args, q.StoreDist)
|
|
}
|
|
return args
|
|
}
|
|
|
|
func (cmd *GeoLocationCmd) Val() []GeoLocation {
|
|
return cmd.locations
|
|
}
|
|
|
|
func (cmd *GeoLocationCmd) Result() ([]GeoLocation, error) {
|
|
return cmd.locations, cmd.err
|
|
}
|
|
|
|
func (cmd *GeoLocationCmd) String() string {
|
|
return cmdString(cmd, cmd.locations)
|
|
}
|
|
|
|
func (cmd *GeoLocationCmd) readReply(rd *proto.Reader) error {
|
|
v, err := rd.ReadArrayReply(newGeoLocationSliceParser(cmd.q))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
cmd.locations = v.([]GeoLocation)
|
|
return nil
|
|
}
|
|
|
|
func newGeoLocationSliceParser(q *GeoRadiusQuery) proto.MultiBulkParse {
|
|
return func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
locs := make([]GeoLocation, 0, n)
|
|
for i := int64(0); i < n; i++ {
|
|
v, err := rd.ReadReply(newGeoLocationParser(q))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
switch vv := v.(type) {
|
|
case string:
|
|
locs = append(locs, GeoLocation{
|
|
Name: vv,
|
|
})
|
|
case *GeoLocation:
|
|
// TODO: avoid copying
|
|
locs = append(locs, *vv)
|
|
default:
|
|
return nil, fmt.Errorf("got %T, expected string or *GeoLocation", v)
|
|
}
|
|
}
|
|
return locs, nil
|
|
}
|
|
}
|
|
|
|
func newGeoLocationParser(q *GeoRadiusQuery) proto.MultiBulkParse {
|
|
return func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
var loc GeoLocation
|
|
var err error
|
|
|
|
loc.Name, err = rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if q.WithDist {
|
|
loc.Dist, err = rd.ReadFloatReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
if q.WithGeoHash {
|
|
loc.GeoHash, err = rd.ReadIntReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
if q.WithCoord {
|
|
n, err := rd.ReadArrayLen()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if n != 2 {
|
|
return nil, fmt.Errorf("got %d coordinates, expected 2", n)
|
|
}
|
|
|
|
loc.Longitude, err = rd.ReadFloatReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
loc.Latitude, err = rd.ReadFloatReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
return &loc, nil
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type GeoPos struct {
|
|
Longitude, Latitude float64
|
|
}
|
|
|
|
type GeoPosCmd struct {
|
|
baseCmd
|
|
|
|
val []*GeoPos
|
|
}
|
|
|
|
var _ Cmder = (*GeoPosCmd)(nil)
|
|
|
|
func NewGeoPosCmd(ctx context.Context, args ...interface{}) *GeoPosCmd {
|
|
return &GeoPosCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *GeoPosCmd) Val() []*GeoPos {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *GeoPosCmd) Result() ([]*GeoPos, error) {
|
|
return cmd.Val(), cmd.Err()
|
|
}
|
|
|
|
func (cmd *GeoPosCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *GeoPosCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.val = make([]*GeoPos, n)
|
|
for i := 0; i < len(cmd.val); i++ {
|
|
i := i
|
|
_, err := rd.ReadReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
longitude, err := rd.ReadFloatReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
latitude, err := rd.ReadFloatReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
cmd.val[i] = &GeoPos{
|
|
Longitude: longitude,
|
|
Latitude: latitude,
|
|
}
|
|
return nil, nil
|
|
})
|
|
if err != nil {
|
|
if err == Nil {
|
|
cmd.val[i] = nil
|
|
continue
|
|
}
|
|
return nil, err
|
|
}
|
|
}
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type CommandInfo struct {
|
|
Name string
|
|
Arity int8
|
|
Flags []string
|
|
ACLFlags []string
|
|
FirstKeyPos int8
|
|
LastKeyPos int8
|
|
StepCount int8
|
|
ReadOnly bool
|
|
}
|
|
|
|
type CommandsInfoCmd struct {
|
|
baseCmd
|
|
|
|
val map[string]*CommandInfo
|
|
}
|
|
|
|
var _ Cmder = (*CommandsInfoCmd)(nil)
|
|
|
|
func NewCommandsInfoCmd(ctx context.Context, args ...interface{}) *CommandsInfoCmd {
|
|
return &CommandsInfoCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *CommandsInfoCmd) Val() map[string]*CommandInfo {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *CommandsInfoCmd) Result() (map[string]*CommandInfo, error) {
|
|
return cmd.Val(), cmd.Err()
|
|
}
|
|
|
|
func (cmd *CommandsInfoCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *CommandsInfoCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.val = make(map[string]*CommandInfo, n)
|
|
for i := int64(0); i < n; i++ {
|
|
v, err := rd.ReadReply(commandInfoParser)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
vv := v.(*CommandInfo)
|
|
cmd.val[vv.Name] = vv
|
|
}
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|
|
|
|
func commandInfoParser(rd *proto.Reader, n int64) (interface{}, error) {
|
|
const numArgRedis5 = 6
|
|
const numArgRedis6 = 7
|
|
|
|
switch n {
|
|
case numArgRedis5, numArgRedis6:
|
|
// continue
|
|
default:
|
|
return nil, fmt.Errorf("redis: got %d elements in COMMAND reply, wanted 7", n)
|
|
}
|
|
|
|
var cmd CommandInfo
|
|
var err error
|
|
|
|
cmd.Name, err = rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
arity, err := rd.ReadIntReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
cmd.Arity = int8(arity)
|
|
|
|
_, err = rd.ReadReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.Flags = make([]string, n)
|
|
for i := 0; i < len(cmd.Flags); i++ {
|
|
switch s, err := rd.ReadString(); {
|
|
case err == Nil:
|
|
cmd.Flags[i] = ""
|
|
case err != nil:
|
|
return nil, err
|
|
default:
|
|
cmd.Flags[i] = s
|
|
}
|
|
}
|
|
return nil, nil
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
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
|
|
}
|
|
}
|
|
|
|
if n == numArgRedis5 {
|
|
return &cmd, nil
|
|
}
|
|
|
|
_, err = rd.ReadReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.ACLFlags = make([]string, n)
|
|
for i := 0; i < len(cmd.ACLFlags); i++ {
|
|
switch s, err := rd.ReadString(); {
|
|
case err == Nil:
|
|
cmd.ACLFlags[i] = ""
|
|
case err != nil:
|
|
return nil, err
|
|
default:
|
|
cmd.ACLFlags[i] = s
|
|
}
|
|
}
|
|
return nil, nil
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &cmd, nil
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type cmdsInfoCache struct {
|
|
fn func(ctx context.Context) (map[string]*CommandInfo, error)
|
|
|
|
once internal.Once
|
|
cmds map[string]*CommandInfo
|
|
}
|
|
|
|
func newCmdsInfoCache(fn func(ctx context.Context) (map[string]*CommandInfo, error)) *cmdsInfoCache {
|
|
return &cmdsInfoCache{
|
|
fn: fn,
|
|
}
|
|
}
|
|
|
|
func (c *cmdsInfoCache) Get(ctx context.Context) (map[string]*CommandInfo, error) {
|
|
err := c.once.Do(func() error {
|
|
cmds, err := c.fn(ctx)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Extensions have cmd names in upper case. Convert them to lower case.
|
|
for k, v := range cmds {
|
|
lower := internal.ToLower(k)
|
|
if lower != k {
|
|
cmds[lower] = v
|
|
}
|
|
}
|
|
|
|
c.cmds = cmds
|
|
return nil
|
|
})
|
|
return c.cmds, err
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type SlowLog struct {
|
|
ID int64
|
|
Time time.Time
|
|
Duration time.Duration
|
|
Args []string
|
|
// These are also optional fields emitted only by Redis 4.0 or greater:
|
|
// https://redis.io/commands/slowlog#output-format
|
|
ClientAddr string
|
|
ClientName string
|
|
}
|
|
|
|
type SlowLogCmd struct {
|
|
baseCmd
|
|
|
|
val []SlowLog
|
|
}
|
|
|
|
var _ Cmder = (*SlowLogCmd)(nil)
|
|
|
|
func NewSlowLogCmd(ctx context.Context, args ...interface{}) *SlowLogCmd {
|
|
return &SlowLogCmd{
|
|
baseCmd: baseCmd{
|
|
ctx: ctx,
|
|
args: args,
|
|
},
|
|
}
|
|
}
|
|
|
|
func (cmd *SlowLogCmd) Val() []SlowLog {
|
|
return cmd.val
|
|
}
|
|
|
|
func (cmd *SlowLogCmd) Result() ([]SlowLog, error) {
|
|
return cmd.Val(), cmd.Err()
|
|
}
|
|
|
|
func (cmd *SlowLogCmd) String() string {
|
|
return cmdString(cmd, cmd.val)
|
|
}
|
|
|
|
func (cmd *SlowLogCmd) readReply(rd *proto.Reader) error {
|
|
_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
|
|
cmd.val = make([]SlowLog, n)
|
|
for i := 0; i < len(cmd.val); i++ {
|
|
n, err := rd.ReadArrayLen()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if n < 4 {
|
|
err := fmt.Errorf("redis: got %d elements in slowlog get, expected at least 4", n)
|
|
return nil, err
|
|
}
|
|
|
|
id, err := rd.ReadIntReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
createdAt, err := rd.ReadIntReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
createdAtTime := time.Unix(createdAt, 0)
|
|
|
|
costs, err := rd.ReadIntReply()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
costsDuration := time.Duration(costs) * time.Microsecond
|
|
|
|
cmdLen, err := rd.ReadArrayLen()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if cmdLen < 1 {
|
|
err := fmt.Errorf("redis: got %d elements commands reply in slowlog get, expected at least 1", cmdLen)
|
|
return nil, err
|
|
}
|
|
|
|
cmdString := make([]string, cmdLen)
|
|
for i := 0; i < cmdLen; i++ {
|
|
cmdString[i], err = rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
var address, name string
|
|
for i := 4; i < n; i++ {
|
|
str, err := rd.ReadString()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if i == 4 {
|
|
address = str
|
|
} else if i == 5 {
|
|
name = str
|
|
}
|
|
}
|
|
|
|
cmd.val[i] = SlowLog{
|
|
ID: id,
|
|
Time: createdAtTime,
|
|
Duration: costsDuration,
|
|
Args: cmdString,
|
|
ClientAddr: address,
|
|
ClientName: name,
|
|
}
|
|
}
|
|
return nil, nil
|
|
})
|
|
return err
|
|
}
|