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gitea/vendor/github.com/pingcap/tidb/kv/utils.go
Thomas Boerger b6a95a8cb3 Integrate public as bindata optionally (#293)
* Dropped unused codekit config

* Integrated dynamic and static bindata for public

* Ignore public bindata

* Add a general generate make task

* Integrated flexible public assets into web command

* Updated vendoring, added all missiong govendor deps

* Made the linter happy with the bindata and dynamic code

* Moved public bindata definition to modules directory

* Ignoring the new bindata path now

* Updated to the new public modules import path

* Updated public bindata command and drop the new prefix
2016-11-30 00:26:36 +08:00

60 lines
1.5 KiB
Go

// Copyright 2015 PingCAP, Inc.
//
// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package kv
import (
"strconv"
"github.com/juju/errors"
)
// IncInt64 increases the value for key k in kv store by step.
func IncInt64(rm RetrieverMutator, k Key, step int64) (int64, error) {
val, err := rm.Get(k)
if IsErrNotFound(err) {
err = rm.Set(k, []byte(strconv.FormatInt(step, 10)))
if err != nil {
return 0, errors.Trace(err)
}
return step, nil
}
if err != nil {
return 0, errors.Trace(err)
}
intVal, err := strconv.ParseInt(string(val), 10, 0)
if err != nil {
return 0, errors.Trace(err)
}
intVal += step
err = rm.Set(k, []byte(strconv.FormatInt(intVal, 10)))
if err != nil {
return 0, errors.Trace(err)
}
return intVal, nil
}
// GetInt64 get int64 value which created by IncInt64 method.
func GetInt64(r Retriever, k Key) (int64, error) {
val, err := r.Get(k)
if IsErrNotFound(err) {
return 0, nil
}
if err != nil {
return 0, errors.Trace(err)
}
intVal, err := strconv.ParseInt(string(val), 10, 0)
return intVal, errors.Trace(err)
}