/
headertrie.go
55 lines (48 loc) · 1.61 KB
/
headertrie.go
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// Copyright 2020 Thinkium
//
// 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 models
import (
"io"
"github.com/ThinkiumGroup/go-common"
"github.com/ThinkiumGroup/go-common/db"
"github.com/ThinkiumGroup/go-common/log"
)
func HashSliceValueEncoder(o interface{}, w io.Writer) error {
h, ok := o.([]byte)
if !ok {
return nil
}
_, err := w.Write(h[:])
return err
}
func HashSliceValueDecoder(r io.Reader) (o interface{}, err error) {
h := make([]byte, common.HashLength)
_, err = r.Read(h)
if err != nil {
return nil, err
}
return h, nil
}
// Only hash is reserved. The data of CashCheck is provided by the client, so the value itself is the hash value
func HashSliceValueHasher(value interface{}, valueBytes []byte) (hashBytes []byte, err error) {
if len(valueBytes) != common.HashLength {
log.Errorf("%x length != HashLength", valueBytes)
return nil, common.ErrLength
}
return valueBytes, nil
}
// It's just a hash value, and the hash value is key, so you don't need to save it
func HashSliceValueExpander(hashBytes []byte, adpater db.DataAdapter) (valueBytes []byte, err error) {
return hashBytes, nil
}