tidb bytesize 源码
tidb bytesize 代码
文件路径：/br/pkg/lightning/config/bytesize.go
// Copyright 2020 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,
// 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 config
import (
"encoding/json"
"github.com/docker/go-units"
)
// ByteSize is an alias of int64 which accepts human-friendly strings like
// '10G' when read from TOML.
type ByteSize int64
// UnmarshalText implements encoding.TextUnmarshaler
func (size *ByteSize) UnmarshalText(b []byte) error {
res, err := units.RAMInBytes(string(b))
if err != nil {
return err
}
*size = ByteSize(res)
return nil
}
// UnmarshalJSON implements json.Unmarshaler (for testing)
func (size *ByteSize) UnmarshalJSON(b []byte) error {
var res int64
if err := json.Unmarshal(b, &res); err != nil {
return err
}
*size = ByteSize(res)
return nil
}
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