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exec_del_local.go
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exec_del_local.go
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// Copyright Fuzamei Corp. 2018 All Rights Reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package executor
import (
"bytes"
"fmt"
"github.com/33cn/chain33/types"
dty "github.com/33cn/plugin/plugin/dapp/dposvote/types"
)
func (d *DPos) rollbackCand(cand *dty.CandidatorInfo, log *dty.ReceiptCandicator) {
if cand == nil || log == nil {
return
}
//如果状态发生了变化,则需要将状态恢复到前一状态
if log.StatusChange {
cand.Status = log.PreStatus
cand.Index = cand.PreIndex
}
//如果投票了,则需要把投票回滚
if log.VoteType == dty.VoteTypeVote {
for i := 0; i < len(cand.Voters); i++ {
if cand.Voters[i].Index == log.Vote.Index && cand.Voters[i].FromAddr == log.Vote.FromAddr && bytes.Equal(cand.Voters[i].Pubkey, log.Vote.Pubkey) {
cand.Voters = append(cand.Voters[0:i], cand.Voters[i+1:]...)
break
}
}
} else if log.VoteType == dty.VoteTypeCancelVote {
cand.Voters = append(cand.Voters, log.Vote)
}
}
func (d *DPos) rollbackCandVote(log *dty.ReceiptCandicator) (kvs []*types.KeyValue, err error) {
voterTable := dty.NewDposVoteTable(d.GetLocalDB())
candTable := dty.NewDposCandidatorTable(d.GetLocalDB())
if err != nil {
return nil, err
}
if log.Status == dty.CandidatorStatusRegist {
//注册回滚,cand表删除记录
err = candTable.Del(log.Pubkey)
if err != nil {
return nil, err
}
kvs, err = candTable.Save()
return kvs, err
} else if log.Status == dty.CandidatorStatusVoted {
//投票阶段回滚,回滚状态,回滚投票
candInfo := log.CandInfo
log.CandInfo = nil
//先回滚候选节点信息
d.rollbackCand(candInfo, log)
err = candTable.Replace(candInfo)
if err != nil {
return nil, err
}
kvs1, err := candTable.Save()
if err != nil {
return nil, err
}
if log.VoteType == dty.VoteTypeVote {
err = voterTable.Del([]byte(fmt.Sprintf("%018d", log.Index)))
if err != nil {
return nil, err
}
} else if log.VoteType == dty.VoteTypeCancelVote {
err = voterTable.Add(log.Vote)
if err != nil {
return nil, err
}
}
kvs2, err := voterTable.Save()
if err != nil {
return nil, err
}
kvs = append(kvs1, kvs2...)
} else if log.Status == dty.CandidatorStatusCancelRegist {
//撤销投票回滚,需要将撤销的投票还回来
candInfo := log.CandInfo
log.CandInfo = nil
//先回滚候选节点信息
d.rollbackCand(candInfo, log)
err = candTable.Replace(candInfo)
if err != nil {
return nil, err
}
kvs1, err := candTable.Save()
if err != nil {
return nil, err
}
if log.VoteType == dty.VoteTypeCancelAllVote {
for i := 0; i < len(candInfo.Voters); i++ {
err = voterTable.Add(candInfo.Voters[i])
if err != nil {
return nil, err
}
}
}
kvs2, err := voterTable.Save()
if err != nil {
return nil, err
}
kvs = append(kvs1, kvs2...)
} else if log.Status == dty.CandidatorStatusReRegist {
//注册回滚,cand表删除记录
err = candTable.Del(log.Pubkey)
if err != nil {
return nil, err
}
kvs, err = candTable.Save()
return kvs, err
}
return kvs, nil
}
func (d *DPos) rollbackVrf(log *dty.ReceiptVrf) (kvs []*types.KeyValue, err error) {
if log.Status == dty.VrfStatusMRegist {
vrfMTable := dty.NewDposVrfMTable(d.GetLocalDB())
//注册回滚,cand表删除记录
err = vrfMTable.Del([]byte(fmt.Sprintf("%018d", log.Index)))
if err != nil {
return nil, err
}
kvs, err = vrfMTable.Save()
return kvs, err
} else if log.Status == dty.VrfStatusRPRegist {
VrfRPTable := dty.NewDposVrfRPTable(d.GetLocalDB())
err = VrfRPTable.Del([]byte(fmt.Sprintf("%018d", log.Index)))
if err != nil {
return nil, err
}
kvs, err = VrfRPTable.Save()
return kvs, err
}
return nil, nil
}
func (d *DPos) rollbackCBInfo(log *dty.ReceiptCB) (kvs []*types.KeyValue, err error) {
if log.Status == dty.CBStatusRecord {
cbTable := dty.NewDposCBTable(d.GetLocalDB())
//注册回滚,cand表删除记录
err = cbTable.Del([]byte(fmt.Sprintf("%018d", log.Cycle)))
if err != nil {
return nil, err
}
kvs, err = cbTable.Save()
return kvs, err
}
return nil, nil
}
func (d *DPos) execDelLocal(receipt *types.ReceiptData) (*types.LocalDBSet, error) {
dbSet := &types.LocalDBSet{}
if receipt.GetTy() != types.ExecOk {
return dbSet, nil
}
for _, log := range receipt.Logs {
switch log.GetTy() {
case dty.TyLogCandicatorRegist, dty.TyLogCandicatorVoted, dty.TyLogCandicatorCancelVoted, dty.TyLogCandicatorCancelRegist, dty.TyLogCandicatorReRegist:
receiptLog := &dty.ReceiptCandicator{}
if err := types.Decode(log.Log, receiptLog); err != nil {
return nil, err
}
kv, err := d.rollbackCandVote(receiptLog)
if err != nil {
return nil, err
}
dbSet.KV = append(dbSet.KV, kv...)
case dty.TyLogVrfMRegist, dty.TyLogVrfRPRegist:
receiptLog := &dty.ReceiptVrf{}
if err := types.Decode(log.Log, receiptLog); err != nil {
return nil, err
}
kv, err := d.rollbackVrf(receiptLog)
if err != nil {
return nil, err
}
dbSet.KV = append(dbSet.KV, kv...)
case dty.TyLogCBInfoRecord:
receiptLog := &dty.ReceiptCB{}
if err := types.Decode(log.Log, receiptLog); err != nil {
return nil, err
}
kv, err := d.rollbackCBInfo(receiptLog)
if err != nil {
return nil, err
}
dbSet.KV = append(dbSet.KV, kv...)
case dty.TyLogTopNCandidatorRegist:
//do nothing now
}
}
return dbSet, nil
}
//ExecDelLocal_Regist method
func (d *DPos) ExecDelLocal_Regist(payload *dty.DposCandidatorRegist, tx *types.Transaction, receiptData *types.ReceiptData, index int) (*types.LocalDBSet, error) {
return d.execDelLocal(receiptData)
}
//ExecDelLocal_CancelRegist method
func (d *DPos) ExecDelLocal_CancelRegist(payload *dty.DposCandidatorCancelRegist, tx *types.Transaction, receiptData *types.ReceiptData, index int) (*types.LocalDBSet, error) {
return d.execDelLocal(receiptData)
}
//ExecDelLocal_ReRegist method
func (d *DPos) ExecDelLocal_ReRegist(payload *dty.DposCandidatorRegist, tx *types.Transaction, receiptData *types.ReceiptData, index int) (*types.LocalDBSet, error) {
return d.execDelLocal(receiptData)
}
//ExecDelLocal_Vote method
func (d *DPos) ExecDelLocal_Vote(payload *dty.DposVote, tx *types.Transaction, receiptData *types.ReceiptData, index int) (*types.LocalDBSet, error) {
return d.execDelLocal(receiptData)
}
//ExecDelLocal_CancelVote method
func (d *DPos) ExecDelLocal_CancelVote(payload *dty.DposCancelVote, tx *types.Transaction, receiptData *types.ReceiptData, index int) (*types.LocalDBSet, error) {
return d.execDelLocal(receiptData)
}
//ExecDelLocal_VrfMRegist method
func (d *DPos) ExecDelLocal_VrfMRegist(payload *dty.DposVrfMRegist, tx *types.Transaction, receiptData *types.ReceiptData, index int) (*types.LocalDBSet, error) {
return d.execDelLocal(receiptData)
}
//ExecDelLocal_VrfRPRegist method
func (d *DPos) ExecDelLocal_VrfRPRegist(payload *dty.DposVrfRPRegist, tx *types.Transaction, receiptData *types.ReceiptData, index int) (*types.LocalDBSet, error) {
return d.execDelLocal(receiptData)
}
//ExecDelLocal_RecordCB method
func (d *DPos) ExecDelLocal_RecordCB(payload *dty.DposCBInfo, tx *types.Transaction, receiptData *types.ReceiptData, index int) (*types.LocalDBSet, error) {
return d.execDelLocal(receiptData)
}
//ExecDelLocal_RegistTopN method
func (d *DPos) ExecDelLocal_RegistTopN(payload *dty.TopNCandidatorRegist, tx *types.Transaction, receiptData *types.ReceiptData, index int) (*types.LocalDBSet, error) {
return d.execDelLocal(receiptData)
}