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structs.go
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structs.go
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// MIT License
//
// Copyright (c) 2016 GenesisCommunity
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package consts
import (
"reflect"
)
// BlockHeader is a structure of the block header
type BlockHeader struct {
Type byte
BlockID uint32
Time uint32
WalletID int64
StateID byte
Sign []byte
}
// TxHeader is the old version of the transaction header
type TxHeader struct {
Type byte
Time uint32
KeyID int64
}
// FirstBlock is the header of FirstBlock transaction
type FirstBlock struct {
TxHeader
PublicKey []byte
NodePublicKey []byte
StopNetworkCertBundle []byte
}
type StopNetwork struct {
TxHeader
StopNetworkCert []byte
}
// Don't forget to insert the structure in init() - list
var blockStructs = make(map[string]reflect.Type)
func init() {
// New structures must be inserted here
list := []interface{}{
FirstBlock{},
StopNetwork{},
}
for _, item := range list {
blockStructs[reflect.TypeOf(item).Name()] = reflect.TypeOf(item)
}
}
// MakeStruct is only used for FirstBlock now
func MakeStruct(name string) interface{} {
v := reflect.New(blockStructs[name]) //.Elem()
return v.Interface()
}
// IsStruct is only used for FirstBlock now
func IsStruct(tx int) bool {
return tx == TxTypeFirstBlock || tx == TxTypeStopNetwork
}
// Header returns TxHeader
func Header(v interface{}) TxHeader {
return reflect.ValueOf(v).Elem().Field(0).Interface().(TxHeader)
}
// Sign returns the signature attached to the header
func Sign(v interface{}) (sign []byte) {
field := reflect.ValueOf(v).Elem().FieldByName(`Sign`)
if field.IsValid() && field.Kind() == reflect.Slice {
sign = field.Bytes()
}
return
}