// Copyright 2016 CodisLabs. All Rights Reserved.
// Licensed under the MIT (MIT-LICENSE.txt) license.
package backlog
import (
"os"
"sync"
"github.com/CodisLabs/redis-port/pkg/libs/errors"
)
var (
ErrClosedBacklog = errors.New("closed backlog")
ErrInvalidOffset = errors.New("invalid offset")
)
type buffer interface {
readSomeAt(b []byte, rpos uint64) (int, error)
writeSome(b []byte) (int, error)
dataRange() (rpos, wpos uint64)
close() error
}
type Backlog struct {
wl sync.Mutex
mu sync.Mutex
err error
const (
B = 1 << (10 * iota)
KB
MB
GB
TB
PB
)
var (
BytesizeRegexp = regexp.MustCompile(`(?i)^\s*(\-?[\d\.]+)\s*([KMGTP]?B|[BKMGTP]|)\s*$`)
digitsRegexp = regexp.MustCompile(`^\-?\d+$`)
)
var (
ErrBadBytesize = errors.New("invalid byte size")
ErrBadBytesizeUnit = errors.New("invalid byte size unit")
)
func Parse(s string) (int64, error) {
if !BytesizeRegexp.MatchString(s) {
return 0, errors.Trace(ErrBadBytesize)
}
subs := BytesizeRegexp.FindStringSubmatch(s)
if len(subs) != 3 {
return 0, errors.Trace(ErrBadBytesize)
}
size := int64(0)
switch strings.ToUpper(string(subs[2])) {
// Licensed under the MIT (MIT-LICENSE.txt) license.
package redis
import (
"bufio"
"bytes"
"io"
"strconv"
"github.com/CodisLabs/redis-port/pkg/libs/errors"
"github.com/CodisLabs/redis-port/pkg/libs/log"
)
var (
ErrBadRespCRLFEnd = errors.New("bad resp CRLF end")
ErrBadRespBytesLen = errors.New("bad resp bytes len")
ErrBadRespArrayLen = errors.New("bad resp array len")
)
type decoder struct {
r *bufio.Reader
}
func Decode(r *bufio.Reader) (Resp, error) {
d := &decoder{r}
return d.decodeResp(0)
}
func MustDecode(r *bufio.Reader) Resp {
resp, err := Decode(r)