/
t_raw.go
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/
t_raw.go
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// Copyright 2015-2016 lessdb Author, All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package skv
import (
"github.com/lessos/lessdb/dbutil"
)
type RawInterface interface {
RawGet(key []byte) *Reply
RawPut(key, value []byte, ttl int64) *Reply
RawDel(key []byte, value interface{}, ttl int64) *Reply
RawScan(keys ...[]byte) *Reply
RawRevScan(cursor, end []byte, limit uint32) *Reply
RawIncrby(key []byte, step int64) *Reply
}
func RawNsKeyConcat(ns byte, key []byte) []byte {
return append([]byte{ns}, keyLenFilter(key)...)
}
func RawNsKeyEncode(ns byte, key []byte) []byte {
k := keyLenFilter(key)
return append([]byte{ns, uint8(len(k))}, k...)
}
func RawTtlEntry(key []byte) []byte {
return RawNsKeyConcat(NsRawTtlEntry, key)
}
func RawTtlQueuePrefix(ttlat uint64) []byte {
return RawNsKeyConcat(NsRawTtlQueue, dbutil.Uint64ToBytes(ttlat))
}
func RawTtlQueue(key []byte, ttlat uint64) []byte {
return append(RawTtlQueuePrefix(ttlat), key...)
}